===== CASE: -n -c FOO=1 break =====


  FOO=1 break
  ^~~~
[ -c flag ]:1: Control flow shouldn't have environment bindings

===== CASE: -n -c break 1 2 =====


  break 1 2
          ^
[ -c flag ]:1: Unexpected argument to 'break'

===== CASE: -n -c x"y"() { echo hi; } =====


  x"y"() { echo hi; }
  ^
[ -c flag ]:1: Invalid function name

===== CASE: -n -c function x"y" { echo hi; } =====


  function x"y" { echo hi; }
           ^
[ -c flag ]:1: Invalid KSH-style function name

===== CASE: -n -c } =====


  }
  ^
[ -c flag ]:1: Unexpected right brace

===== CASE: -n -c case foo in *) echo  =====


  case foo in *) echo
                      ^
[ -c flag ]:1: Expected ;; or esac

===== CASE: -n -c case foo in x|) echo  =====


  case foo in x|) echo
                ^
[ -c flag ]:1: Expected case pattern

===== CASE: -n -c ls foo| =====


  ls foo|
         ^
[ -c flag ]:1: Unexpected EOF while parsing command

===== CASE: -n -c ls foo&& =====


  ls foo&&
          ^
[ -c flag ]:1: Unexpected EOF while parsing command

===== CASE: -n -c foo() =====


  foo()
       ^
[ -c flag ]:1: Unexpected word while parsing compound command

===== CASE: -n -c break >out =====


(command.ControlFlow
  keyword: 
    (Token
      id: Id.ControlFlow_Break
      col: 0
      length: 5
      span_id: 0
      line: (SourceLine line_num:1 content:"break >out" src:(source.CFlag))
      tval: break
    )
)

===== CASE: -n -c break >out =====


  break >out
  ^~~~~
[ -c flag ]:1: Control flow shouldn't have redirects

===== CASE: -n -c [ ( x ] =====


  [ ( x ]
        ^
[ -c flag ]:1: Syntax error in expression (near Id.Op_RBracket)

===== CASE: -n -c PYTHONPATH=. FOO=(1 2) python =====


  PYTHONPATH=. FOO=(1 2) python
               ^~~~
[ -c flag ]:1: Environment bindings can't contain array literals

===== CASE: -n -c PYTHONPATH+=1 python =====


  PYTHONPATH+=1 python
  ^~~~~~~~~~~~
[ -c flag ]:1: Expected = in environment binding, got +=

===== CASE: -n -c =var =====


  =var
  ^
[ -c flag ]:1: =word isn't allowed.  Hint: add a space after =, or quote it

===== CASE: -n -c =f(x) =====


  =f(x)
  ^
[ -c flag ]:1: =word isn't allowed.  Hint: add a space after =, or quote it

===== CASE: -n -c =var =====


  =var
  ^
[ -c flag ]:1: =word isn't allowed.  Hint: add a space after =, or quote it

===== CASE: -n -c =f(x) =====


  =f(x)
  ^
[ -c flag ]:1: =word isn't allowed.  Hint: add a space after =, or quote it

===== CASE: -n -c  
    echo line 2
    echo $( echo  =====


      echo $( echo
                   ^
[ -c flag ]:3: Invalid word while parsing command list

===== CASE: -n -c  
    echo line 2
    echo ` echo  =====


      echo ` echo
           ^
[ -c flag ]:3: Unexpected EOF while looking for closing backtick

===== CASE: -n -c 
    echo line 2
    echo ` echo \`  =====


      echo ` echo \`
           ^
[ -c flag ]:3: Unexpected EOF while looking for closing backtick

===== CASE: -n -c 
    echo line 2
    echo ` echo \`unclosed `  =====


      echo ` echo \`unclosed `
                  ^
[ backticks in [ -c flag ] ]:3: Unexpected EOF while looking for closing backtick

===== CASE: -n -c echo `for x in` =====


  echo `for x in`
                ^
[ backticks in [ -c flag ] ]:1: Invalid word in for loop

===== CASE: -n -c echo < << =====


  echo < <<
         ^~
[ -c flag ]:1: Invalid token after redirect operator

===== CASE: -n -c echo $( echo > >>  ) =====


  echo $( echo > >>  )
                 ^~
[ -c flag ]:1: Invalid token after redirect operator

===== CASE: -n -c cat <<EOF
$(( 1 * ))  
EOF
 =====


  $(( 1 * ))
          ^
[ -c flag ]:2: Token can't be used in prefix position

===== CASE: -n -c cat <<EOF
invalid: ${a!}
EOF
 =====


  invalid: ${a!}
              ^
[ -c flag ]:2: Expected } to close ${

===== CASE: -n -c cat <<EOF
$(for x in )
EOF
 =====


  $(for x in )
             ^
[ -c flag ]:2: Invalid word in for loop

===== CASE: -n -c cat << $(invalid here end) =====


  cat << $(invalid here end)
         ^~
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c cat << $((1+2)) =====


  cat << $((1+2))
         ^~~
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c cat << a=(1 2 3) =====


  cat << a=(1 2 3)
         ^~
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c cat << \a$(invalid) =====


  cat << \a$(invalid)
         ^~
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c cat << "double"$(invalid) =====


  cat << "double"$(invalid)
         ^
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c cat << ~foo/$(invalid) =====


  cat << ~foo/$(invalid)
         ^~~~
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c cat << $var/$(invalid) =====


  cat << $var/$(invalid)
         ^~~~
[ -c flag ]:1: Unterminated here doc began here

===== CASE: -n -c a[-1]+=(4 5) =====


  a[-1]+=(4 5)
         ^
[ -c flag ]:1: Unexpected left paren (might need a space before it)

===== CASE: -n -c 
  for
  do
  done
   =====


    for
       ^
[ -c flag ]:2: Expected loop variable (a constant word)

===== CASE: -n -c 
  case
  in esac
   =====


    case
        ^
[ -c flag ]:2: Expected a word to match against

===== CASE: -n -c 
  while
  do
  done
   =====


    do
    ^~
[ -c flag ]:3: Expected a condition

===== CASE: -n -c 
  if
  then
  fi
   =====


    then
    ^~~~
[ -c flag ]:3: Expected a condition

===== CASE: -n -c 
  if true
  then
  elif
  then
  fi
   =====


    then
    ^~~~
[ -c flag ]:5: Expected a condition

===== CASE: -n -c 
  case |
  in
  esac
   =====


    case |
         ^
[ -c flag ]:2: Expected a word to match against

===== CASE: -n -c 
  case ;
  in
  esac
   =====


    case ;
         ^
[ -c flag ]:2: Expected a word to match against

===== CASE: -n -c 
  if
  true
  then
  fi
   =====


(command.If
  if_kw: 
    (Token
      id: Id.KW_If
      col: 2
      length: 2
      span_id: 2
      line: (SourceLine line_num:2 content:"  if\n" src:(source.CFlag))
      tval: if
    )
  arms: [
    (IfArm
      keyword: 
        (Token
          id: Id.KW_If
          col: 2
          length: 2
          span_id: 2
          line: (SourceLine line_num:2 content:"  if\n" src:(source.CFlag))
          tval: if
        )
      cond: 
        (condition.Shell
          commands: [
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 2
                  length: 4
                  span_id: 5
                  line: (SourceLine line_num:3 content:"  true\n" src:(source.CFlag))
                  tval: "true"
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 2
                      length: 4
                      span_id: 5
                      line: (SourceLine line_num:3 content:"  true\n" src:(source.CFlag))
                      tval: "true"
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          ]
        )
      then_kw: 
        (Token
          id: Id.KW_Then
          col: 2
          length: 4
          span_id: 8
          line: (SourceLine line_num:4 content:"  then\n" src:(source.CFlag))
          tval: then
        )
      action: []
      spids: [2 8]
    )
  ]
  else_action: []
  fi_kw: 
    (Token
      id: Id.KW_Fi
      col: 2
      length: 2
      span_id: 11
      line: (SourceLine line_num:5 content:"  fi\n" src:(source.CFlag))
      tval: fi
    )
  redirects: []
)

===== CASE: -n -c 
  while
  false
  do
  done
   =====


(command.WhileUntil
  keyword: 
    (Token
      id: Id.KW_While
      col: 2
      length: 5
      span_id: 2
      line: (SourceLine line_num:2 content:"  while\n" src:(source.CFlag))
      tval: while
    )
  cond: 
    (condition.Shell
      commands: [
        (command.Simple
          blame_tok: 
            (Token
              id: Id.Lit_Chars
              col: 2
              length: 5
              span_id: 5
              line: (SourceLine line_num:3 content:"  false\n" src:(source.CFlag))
              tval: "false"
            )
          more_env: []
          words: [
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Chars
                  col: 2
                  length: 5
                  span_id: 5
                  line: (SourceLine line_num:3 content:"  false\n" src:(source.CFlag))
                  tval: "false"
                )
              ]
            )
          ]
          redirects: []
          do_fork: T
        )
      ]
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 2
          length: 2
          span_id: 8
          line: (SourceLine line_num:4 content:"  do\n" src:(source.CFlag))
          tval: do
        )
      children: []
      right: 
        (Token
          id: Id.KW_Done
          col: 2
          length: 4
          span_id: 11
          line: (SourceLine line_num:5 content:"  done\n" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c 
  while
  true;
  false
  do
  done
   =====


(command.WhileUntil
  keyword: 
    (Token
      id: Id.KW_While
      col: 2
      length: 5
      span_id: 2
      line: (SourceLine line_num:2 content:"  while\n" src:(source.CFlag))
      tval: while
    )
  cond: 
    (condition.Shell
      commands: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 2
                  length: 4
                  span_id: 5
                  line: (SourceLine line_num:3 content:"  true;\n" src:(source.CFlag))
                  tval: "true"
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 2
                      length: 4
                      span_id: 5
                      line: (SourceLine line_num:3 content:"  true;\n" src:(source.CFlag))
                      tval: "true"
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 6
              length: 1
              span_id: 6
              line: (SourceLine line_num:3 content:"  true;\n" src:(source.CFlag))
              tval: _
            )
        )
        (command.Simple
          blame_tok: 
            (Token
              id: Id.Lit_Chars
              col: 2
              length: 5
              span_id: 9
              line: (SourceLine line_num:4 content:"  false\n" src:(source.CFlag))
              tval: "false"
            )
          more_env: []
          words: [
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Chars
                  col: 2
                  length: 5
                  span_id: 9
                  line: (SourceLine line_num:4 content:"  false\n" src:(source.CFlag))
                  tval: "false"
                )
              ]
            )
          ]
          redirects: []
          do_fork: T
        )
      ]
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 2
          length: 2
          span_id: 12
          line: (SourceLine line_num:5 content:"  do\n" src:(source.CFlag))
          tval: do
        )
      children: []
      right: 
        (Token
          id: Id.KW_Done
          col: 2
          length: 4
          span_id: 15
          line: (SourceLine line_num:6 content:"  done\n" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c 
  if true
  then
  fi
   =====


(command.If
  if_kw: 
    (Token
      id: Id.KW_If
      col: 2
      length: 2
      span_id: 2
      line: (SourceLine line_num:2 content:"  if true\n" src:(source.CFlag))
      tval: if
    )
  arms: [
    (IfArm
      keyword: 
        (Token
          id: Id.KW_If
          col: 2
          length: 2
          span_id: 2
          line: (SourceLine line_num:2 content:"  if true\n" src:(source.CFlag))
          tval: if
        )
      cond: 
        (condition.Shell
          commands: [
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 5
                  length: 4
                  span_id: 4
                  line: (SourceLine line_num:2 content:"  if true\n" src:(source.CFlag))
                  tval: "true"
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 5
                      length: 4
                      span_id: 4
                      line: (SourceLine line_num:2 content:"  if true\n" src:(source.CFlag))
                      tval: "true"
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          ]
        )
      then_kw: 
        (Token
          id: Id.KW_Then
          col: 2
          length: 4
          span_id: 7
          line: (SourceLine line_num:3 content:"  then\n" src:(source.CFlag))
          tval: then
        )
      action: []
      spids: [2 7]
    )
  ]
  else_action: []
  fi_kw: 
    (Token
      id: Id.KW_Fi
      col: 2
      length: 2
      span_id: 10
      line: (SourceLine line_num:4 content:"  fi\n" src:(source.CFlag))
      tval: fi
    )
  redirects: []
)

===== CASE: -n -c 
  while true;
        false
  do
  done
   =====


(command.WhileUntil
  keyword: 
    (Token
      id: Id.KW_While
      col: 2
      length: 5
      span_id: 2
      line: (SourceLine line_num:2 content:"  while true;\n" src:(source.CFlag))
      tval: while
    )
  cond: 
    (condition.Shell
      commands: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 8
                  length: 4
                  span_id: 4
                  line: (SourceLine line_num:2 content:"  while true;\n" src:(source.CFlag))
                  tval: "true"
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 8
                      length: 4
                      span_id: 4
                      line: (SourceLine line_num:2 content:"  while true;\n" src:(source.CFlag))
                      tval: "true"
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 12
              length: 1
              span_id: 5
              line: (SourceLine line_num:2 content:"  while true;\n" src:(source.CFlag))
              tval: _
            )
        )
        (command.Simple
          blame_tok: 
            (Token
              id: Id.Lit_Chars
              col: 8
              length: 5
              span_id: 8
              line: (SourceLine line_num:3 content:"        false\n" src:(source.CFlag))
              tval: "false"
            )
          more_env: []
          words: [
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Chars
                  col: 8
                  length: 5
                  span_id: 8
                  line: (SourceLine line_num:3 content:"        false\n" src:(source.CFlag))
                  tval: "false"
                )
              ]
            )
          ]
          redirects: []
          do_fork: T
        )
      ]
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 2
          length: 2
          span_id: 11
          line: (SourceLine line_num:4 content:"  do\n" src:(source.CFlag))
          tval: do
        )
      children: []
      right: 
        (Token
          id: Id.KW_Done
          col: 2
          length: 4
          span_id: 14
          line: (SourceLine line_num:5 content:"  done\n" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c echo ${ =====


  echo ${
         ^
[ -c flag ]:1: Unexpected token in ${}

===== CASE: -n -c ${foo:} =====


  ${foo:}
        ^
[ -c flag ]:1: Token can't be used in prefix position

===== CASE: -n -c echo ${a[@Z =====


  echo ${a[@Z
            ^
[ -c flag ]:1: Expected ] to close subscript

===== CASE: -n -c echo ${x.} =====


  echo ${x.}
          ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c echo ${!x.} =====


  echo ${!x.}
           ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c echo ${a:1;} =====


  echo ${a:1;}
            ^
[ -c flag ]:1: Expected : or } in slice

===== CASE: -n -c echo ${a:1:2;} =====


  echo ${a:1:2;}
              ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Arith_Semi != Id.Arith_RBrace)

===== CASE: -n -c echo ${#a. =====


  echo ${#a.
           ^
[ -c flag ]:1: Expected } after length expression

===== CASE: -n -c for (( i = 0; i < 10; i++ ; =====


  for (( i = 0; i < 10; i++ ;
                            ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Arith_Semi != Id.Arith_RParen)

===== CASE: -n -c for (( i = 0; i < 10; i++ / =====


  for (( i = 0; i < 10; i++ /
                             ^
[ -c flag ]:1: Unexpected end of input

===== CASE: -n -c echo @(extglob|foo =====


  echo @(extglob|foo
       ^~
[ -c flag ]:1: Unexpected EOF reading extended glob that began here

===== CASE: -n -c ${undef:- =====


  ${undef:-
           ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c ${undef:-$ =====


  ${undef:-$
            ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c ${undef:-$F =====


  ${undef:-$F
             ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c ${x@ =====


  ${x@
     ^
[ -c flag ]:1: Unexpected token in ${} (VOp3)

===== CASE: -n -c ${x@Q =====


  ${x@Q
       ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c ${x% =====


  ${x%
      ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c ${x/ =====


  ${x/
      ^
[ -c flag ]:1: Expected } after replacement string, got Id.Eof_Real

===== CASE: -n -c ${x/a/ =====


  ${x/a/
        ^
[ -c flag ]:1: Expected } after replacement string, got Id.Eof_Real

===== CASE: -n -c ${x/a/b =====


  ${x/a/b
         ^
[ -c flag ]:1: Expected } after replacement string, got Id.Eof_Real

===== CASE: -n -c ${x: =====


  ${x:
      ^
[ -c flag ]:1: Unexpected end of input

===== CASE: -n -c a=(1 & 2) =====


  a=(1 & 2)
       ^
[ -c flag ]:1: Unexpected token in array literal

===== CASE: -n -c a= (1 2) =====


  a= (1 2)
    ^
[ -c flag ]:1: Expected ( after =

===== CASE: -n -c a=(1 2 =====


  a=(1 2
        ^
[ -c flag ]:1: Unexpected token in array literal

===== CASE: -n -c a=(1 ${2@} ) =====


  a=(1 ${2@} )
          ^
[ -c flag ]:1: Unexpected token in ${} (VOp3)

===== CASE: -n -c echo ${x/} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x/}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x/}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x/}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x/}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: (CompoundWord parts:[])
              replace: (rhs_word.Empty)
              replace_mode: Id.Undefined_Tok
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x/}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 9
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"echo ${x/}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x//} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x//}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x//}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x//}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x//}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: (CompoundWord parts:[])
              replace: (rhs_word.Empty)
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x//}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 10
              length: 1
              span_id: 6
              line: (SourceLine line_num:1 content:"echo ${x//}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x/foo} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 9
                      length: 3
                      span_id: 5
                      line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
                      tval: foo
                    )
                  ]
                )
              replace: (rhs_word.Empty)
              replace_mode: Id.Undefined_Tok
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 12
              length: 1
              span_id: 6
              line: (SourceLine line_num:1 content:"echo ${x/foo}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x//foo} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 10
                      length: 3
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
                      tval: foo
                    )
                  ]
                )
              replace: (rhs_word.Empty)
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 13
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"echo ${x//foo}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x/%foo} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 10
                      length: 3
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
                      tval: foo
                    )
                  ]
                )
              replace: (rhs_word.Empty)
              replace_mode: Id.Lit_Percent
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 13
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"echo ${x/%foo}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x///foo} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Slash
                      col: 10
                      length: 1
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
                      tval: /
                    )
                    (Token
                      id: Id.Lit_Chars
                      col: 11
                      length: 3
                      span_id: 7
                      line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
                      tval: foo
                    )
                  ]
                )
              replace: (rhs_word.Empty)
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 14
              length: 1
              span_id: 8
              line: (SourceLine line_num:1 content:"echo ${x///foo}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x///} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Slash
                      col: 10
                      length: 1
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
                      tval: /
                    )
                  ]
                )
              replace: (rhs_word.Empty)
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 11
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"echo ${x///}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x/%/} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x/%/}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x/%/}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x/%/}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x/%/}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: (CompoundWord parts:[])
              replace: (CompoundWord parts:[])
              replace_mode: Id.Lit_Percent
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x/%/}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 11
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"echo ${x/%/}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x////} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Slash
                      col: 10
                      length: 1
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
                      tval: /
                    )
                  ]
                )
              replace: (CompoundWord parts:[])
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 12
              length: 1
              span_id: 8
              line: (SourceLine line_num:1 content:"echo ${x////}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x/%//} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: (CompoundWord parts:[])
              replace: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Slash
                      col: 11
                      length: 1
                      span_id: 7
                      line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
                      tval: /
                    )
                  ]
                )
              replace_mode: Id.Lit_Percent
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 12
              length: 1
              span_id: 8
              line: (SourceLine line_num:1 content:"echo ${x/%//}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x//foo/replace
} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 10
                      length: 3
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
                      tval: foo
                    )
                  ]
                )
              replace: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 14
                      length: 8
                      span_id: 8
                      line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
                      tval: "replace\n"
                    )
                  ]
                )
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x//foo/replace\n" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 0
              length: 1
              span_id: 9
              line: (SourceLine line_num:2 content:"}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo ${x//foo/replace$foo} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.PatSub
              pat: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 10
                      length: 3
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
                      tval: foo
                    )
                  ]
                )
              replace: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 14
                      length: 7
                      span_id: 8
                      line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
                      tval: replace
                    )
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 21
                          length: 4
                          span_id: 9
                          line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
                          tval: "$foo"
                        )
                      var_name: foo
                    )
                  ]
                )
              replace_mode: Id.Lit_Slash
              slash_tok: 
                (Token
                  id: Id.VOp2_Slash
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
                  tval: _
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 25
              length: 1
              span_id: 10
              line: (SourceLine line_num:1 content:"echo ${x//foo/replace$foo}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c "unterminated double =====


  "unterminated double
  ^
[ -c flag ]:1: Unexpected EOF reading double-quoted string that began here

===== CASE: -n -c 'unterminated single =====


  'unterminated single
  ^
[ -c flag ]:1: Unexpected EOF in single-quoted string that began here

===== CASE: -n -c 
  "unterminated double multiline
  line 1
  line 2 =====


    "unterminated double multiline
    ^
[ -c flag ]:2: Unexpected EOF reading double-quoted string that began here

===== CASE: -n -c 
  'unterminated single multiline
  line 1
  line 2 =====


    'unterminated single multiline
    ^
[ -c flag ]:2: Unexpected EOF in single-quoted string that began here

===== CASE: -n -c echo ${x*} =====


  echo ${x*}
          ^
[ -c flag ]:1: Unexpected token in ${} (VOp3)

===== CASE: -n -c echo ${x@} =====


  echo ${x@}
          ^
[ -c flag ]:1: Unexpected token in ${} (VOp3)

===== CASE: -n -c echo ${x.} =====


  echo ${x.}
          ^
[ -c flag ]:1: Expected } to close ${

===== CASE: -n -c echo $(( 1 + 2 ; =====


  echo $(( 1 + 2 ;
                 ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Arith_Semi != Id.Arith_RParen)

===== CASE: -n -c echo $(( 1 + 2 ); =====


  echo $(( 1 + 2 );
                  ^
[ -c flag ]:1: Expected second ) to end arith sub

===== CASE: -n -c echo $((  =====


  echo $((
           ^
[ -c flag ]:1: Unexpected end of input

===== CASE: -n -c echo $(( 1 =====


  echo $(( 1
            ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Eof_Real != Id.Arith_RParen)

===== CASE: -n -c (( 1 + 2 / =====


  (( 1 + 2 /
            ^
[ -c flag ]:1: Unexpected end of input

===== CASE: -n -c (( 1 + 2 )/ =====


  (( 1 + 2 )/
            ^
[ -c flag ]:1: Expected second ) to end arith statement

===== CASE: -n -c (( 1 =====


  (( 1
      ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Eof_Real != Id.Arith_RParen)

===== CASE: -n -c (( =====


  ((
    ^
[ -c flag ]:1: Unexpected end of input

===== CASE: -n -c a[x+]=1 =====


  a[x+]=1
      ^
[ array LHS in [ -c flag ] ]:1: Unexpected end of input

===== CASE: -n -c a[]=1 =====


  a[]=1
    ^
[ array LHS in [ -c flag ] ]:1: Unexpected end of input

===== CASE: -n -c a[*]=1 =====


  a[*]=1
    ^
[ array LHS in [ -c flag ] ]:1: Token can't be used in prefix position

===== CASE: -n -c (( a + { )) =====


  (( a + { ))
         ^
[ -c flag ]:1: Unexpected token while parsing arithmetic: '{'

===== CASE: -n -c (( a + } )) =====


  (( a + } ))
         ^
[ -c flag ]:1: Token can't be used in prefix position

===== CASE: -n -c echo $((a b)) =====


  echo $((a b))
            ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Word_Compound != Id.Arith_RParen)

===== CASE: -n -c ((a b)) =====


  ((a b))
      ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Word_Compound != Id.Arith_RParen)

===== CASE: -n -c for ((x=0; x<5; x++)); do echo $x; done =====


(command.ForExpr
  keyword: 
    (Token
      id: Id.KW_For
      col: 0
      length: 3
      span_id: 0
      line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
      tval: for
    )
  init: 
    (arith_expr.BinaryAssign
      op_id: Id.Arith_Equal
      left: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 6
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
      right: 
        (CompoundWord
          parts: [
            (Token
              id: Id.Lit_Digits
              col: 8
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: 0
            )
          ]
        )
    )
  cond: 
    (arith_expr.Binary
      op_id: Id.Arith_Less
      left: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 11
              length: 1
              span_id: 8
              line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
      right: 
        (CompoundWord
          parts: [
            (Token
              id: Id.Lit_Digits
              col: 13
              length: 1
              span_id: 10
              line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: 5
            )
          ]
        )
    )
  update: 
    (arith_expr.UnaryAssign
      op_id: Id.Node_PostDPlus
      child: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 16
              length: 1
              span_id: 13
              line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 23
          length: 2
          span_id: 19
          line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
          tval: do
        )
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 26
                  length: 4
                  span_id: 21
                  line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 26
                      length: 4
                      span_id: 21
                      line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 31
                          length: 2
                          span_id: 23
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "for ((x=0; x<5; x++)); do echo $x; done"
                              src: (source.CFlag)
                            )
                          tval: "$x"
                        )
                      var_name: x
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 33
              length: 1
              span_id: 24
              line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: _
            )
        )
      ]
      right: 
        (Token
          id: Id.KW_Done
          col: 35
          length: 4
          span_id: 26
          line: (SourceLine line_num:1 content:"for ((x=0; x<5; x++)); do echo $x; done" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c for ((; x<5; x++)); do echo $x; done =====


(command.ForExpr
  keyword: 
    (Token
      id: Id.KW_For
      col: 0
      length: 3
      span_id: 0
      line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
      tval: for
    )
  cond: 
    (arith_expr.Binary
      op_id: Id.Arith_Less
      left: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 8
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
      right: 
        (CompoundWord
          parts: [
            (Token
              id: Id.Lit_Digits
              col: 10
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: 5
            )
          ]
        )
    )
  update: 
    (arith_expr.UnaryAssign
      op_id: Id.Node_PostDPlus
      child: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 13
              length: 1
              span_id: 10
              line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 20
          length: 2
          span_id: 16
          line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
          tval: do
        )
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 23
                  length: 4
                  span_id: 18
                  line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 23
                      length: 4
                      span_id: 18
                      line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 28
                          length: 2
                          span_id: 20
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "for ((; x<5; x++)); do echo $x; done"
                              src: (source.CFlag)
                            )
                          tval: "$x"
                        )
                      var_name: x
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 30
              length: 1
              span_id: 21
              line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
              tval: _
            )
        )
      ]
      right: 
        (Token
          id: Id.KW_Done
          col: 32
          length: 4
          span_id: 23
          line: (SourceLine line_num:1 content:"for ((; x<5; x++)); do echo $x; done" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c for ((; ; x++)); do echo $x; done =====


(command.ForExpr
  keyword: 
    (Token
      id: Id.KW_For
      col: 0
      length: 3
      span_id: 0
      line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
      tval: for
    )
  update: 
    (arith_expr.UnaryAssign
      op_id: Id.Node_PostDPlus
      child: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 10
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 17
          length: 2
          span_id: 13
          line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
          tval: do
        )
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 20
                  length: 4
                  span_id: 15
                  line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 20
                      length: 4
                      span_id: 15
                      line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 25
                          length: 2
                          span_id: 17
                          line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
                          tval: "$x"
                        )
                      var_name: x
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 27
              length: 1
              span_id: 18
              line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
              tval: _
            )
        )
      ]
      right: 
        (Token
          id: Id.KW_Done
          col: 29
          length: 4
          span_id: 20
          line: (SourceLine line_num:1 content:"for ((; ; x++)); do echo $x; done" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c for ((; ;)); do echo $x; done =====


(command.ForExpr
  keyword: 
    (Token
      id: Id.KW_For
      col: 0
      length: 3
      span_id: 0
      line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
      tval: for
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 13
          length: 2
          span_id: 10
          line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
          tval: do
        )
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 16
                  length: 4
                  span_id: 12
                  line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 16
                      length: 4
                      span_id: 12
                      line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 21
                          length: 2
                          span_id: 14
                          line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
                          tval: "$x"
                        )
                      var_name: x
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 23
              length: 1
              span_id: 15
              line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
              tval: _
            )
        )
      ]
      right: 
        (Token
          id: Id.KW_Done
          col: 25
          length: 4
          span_id: 17
          line: (SourceLine line_num:1 content:"for ((; ;)); do echo $x; done" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c for ((x=0; x<5; x++ b)); do echo $x; done =====


  for ((x=0; x<5; x++ b)); do echo $x; done
                      ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Word_Compound != Id.Arith_RParen)

===== CASE: -n -c for ((x=0 b; x<5; x++)); do echo $x; done =====


  for ((x=0 b; x<5; x++)); do echo $x; done
            ^
[ -c flag ]:1: Expected ; here

===== CASE: -n -c for ((x=0; x<5 b; x++)); do echo $x; done =====


  for ((x=0; x<5 b; x++)); do echo $x; done
                 ^
[ -c flag ]:1: Expected ; here

===== CASE: -n -c ${a:1+2 b} =====


  ${a:1+2 b}
           ^
[ -c flag ]:1: Expected : or } in slice

===== CASE: -n -c ${a:1+2:3+4 b} =====


  ${a:1+2:3+4 b}
              ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Word_Compound != Id.Arith_RBrace)

===== CASE: -n -c ${a[1+2 b]} =====


  ${a[1+2 b]}
          ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Word_Compound != Id.Arith_RBracket)

===== CASE: -n -c $(( 1 + + )) =====


  $(( 1 + + ))
            ^
[ -c flag ]:1: Token can't be used in prefix position

===== CASE: -n -c $(( 1 2 )) =====


  $(( 1 2 ))
        ^
[ -c flag ]:1: Unexpected token after arithmetic expression (Id.Word_Compound != Id.Arith_RParen)

===== CASE: -n -c $(( - ; )) =====


  $(( - ; ))
        ^
[ -c flag ]:1: Token can't be used in prefix position

===== CASE: -n -c $(( ` )) =====


  $(( ` ))
      ^
[ -c flag ]:1: Unexpected EOF while looking for closing backtick

===== CASE: -n -c $(( $ )) =====


  $(( $ ))
      ^
[ -c flag ]:1: Unexpected token while parsing arithmetic: '$'

===== CASE: -n -c $(( x+1 = 42 )) =====


  $(( x+1 = 42 ))
          ^
[ -c flag ]:1: Left-hand side of this assignment is invalid

===== CASE: -n -c $(( (x+42)++ )) =====


  $(( (x+42)++ ))
            ^~
[ -c flag ]:1: Left-hand side of this assignment is invalid

===== CASE: -n -c $(( ++(x+42) )) =====


  $(( ++(x+42) ))
      ^~
[ -c flag ]:1: Left-hand side of this assignment is invalid

===== CASE: -n -c [[ a b ]] =====


  [[ a b ]]
       ^
[ -c flag ]:1: Expected ]]

===== CASE: -n -c [[ a "a"$(echo hi)"b" ]] =====


  [[ a "a"$(echo hi)"b" ]]
       ^
[ -c flag ]:1: Expected ]]

===== CASE: -n -c [[ a == ]] =====


  [[ a == ]]
            ^
[ -c flag ]:1: Expected ]]

===== CASE: -n -c [[ ( 1 == 2 - ]] =====


  [[ ( 1 == 2 - ]]
              ^
[ -c flag ]:1: Expected ), got word.Compound

===== CASE: -n -c [[ == ]] =====


  [[ == ]]
     ^~
[ -c flag ]:1: Unexpected token in boolean expression (Id.BoolBinary_GlobDEqual)

===== CASE: -n -c [[ ) ]] =====


  [[ ) ]]
     ^
[ -c flag ]:1: Unexpected token in boolean expression (Id.Op_RParen)

===== CASE: -n -c [[ ( ]] =====


  [[ ( ]]
       ^~
[ -c flag ]:1: Unexpected token in boolean expression (Id.Lit_DRightBracket)

===== CASE: -n -c [[ ;;; ]] =====


  [[ ;;; ]]
     ^~
[ -c flag ]:1: Unexpected token in boolean expression (Id.Op_DSemi)

===== CASE: -n -c [[ =====


  [[
    ^
[ -c flag ]:1: Unexpected token in boolean expression (Id.Eof_Real)

===== CASE: -n -c [[ ( a == b foo${var} ]] =====


  [[ ( a == b foo${var} ]]
              ^~~
[ -c flag ]:1: Expected ), got word.Compound

===== CASE: [ x -a y f ] =====


  [ x -a y f ]
           ^
[ -c flag ]:1: (test) Unexpected trailing word 'f'

===== CASE: test x -a y f =====


  test x -a y f
              ^
[ -c flag ]:1: (test) Unexpected trailing word 'f'

===== CASE: [ x  =====


  [ x
  ^
[ -c flag ]:1: missing closing ]

===== CASE: [ x x ] =====


  [ x x ]
    ^
[ -c flag ]:1: (test) Expected unary operator, got 'x' (2 args)

===== CASE: [ x x "a b" ] =====


  [ x x "a b" ]
      ^
[ -c flag ]:1: (test) Expected binary operator, got 'x' (3 args)

===== CASE: [ -t xxx ] =====


  [ -t xxx ]
       ^~~
[ -c flag ]:1: (test) Invalid file descriptor 'xxx'

===== CASE: [ \( x -a -y -a z ] =====


[??? no location ???] (test) Expected ), got EOF

===== CASE: printf % =====


  %
   ^
[ printf word at line 1 of [ -c flag ] ]:1: Expected a printf format character

===== CASE: printf [%Z] =====


  [%Z]
    ^
[ printf word at line 1 of [ -c flag ] ]:1: Invalid printf format character

===== CASE: printf -v "-invalid-" %s foo =====


  -invalid-
           ^
[ dynamic LHS word at ? ]:1: Unexpected end of input
  printf -v "-invalid-" %s foo
  ^~~~~~
[ -c flag ]:1: 'printf' got invalid LHS expression

===== CASE: shift 1 2 =====


  shift 1 2
  ^~~~~
[ -c flag ]:1: 'shift' got too many arguments

===== CASE: shift zzz =====


  shift zzz
  ^~~~~
[ -c flag ]:1: 'shift' Invalid shift argument 'zzz'

===== CASE: pushd x y =====


  pushd x y
          ^
[ -c flag ]:1: 'pushd' got too many arguments

===== CASE: pwd -x =====


  pwd -x
      ^~
[ -c flag ]:1: 'pwd' doesn't accept flag -x

===== CASE: pp x foo a-x =====


  pp x foo a-x
     ^
[ -c flag ]:1: 'pp' got invalid action 'x'

===== CASE: wait zzz =====


  wait zzz
       ^~~
[ -c flag ]:1: 'wait' expected PID or jobspec, got 'zzz'

===== CASE: wait %jobspec-not-supported =====


  wait %jobspec-not-supported
       ^
[ -c flag ]:1: 'wait' expected PID or jobspec, got '%jobspec-not-supported'

===== CASE: unset invalid-var-name =====


  unset invalid-var-name
  ^~~~~
[ -c flag ]:1: fatal: Invalid LHS to modify

===== CASE: getopts hc: invalid-var-name =====


  getopts hc: invalid-var-name
          ^~
[ -c flag ]:1: 'getopts' got invalid variable name 'invalid-var-name'

===== CASE: read -x =====


  read -x
       ^~
[ -c flag ]:1: 'read' doesn't accept flag -x

===== CASE: builtin read -x =====


  builtin read -x
               ^~
[ -c flag ]:1: 'read' doesn't accept flag -x

===== CASE: read -n =====


  read -n
       ^~
[ -c flag ]:1: 'read' expected argument to '-n'

===== CASE: read -n x =====


  read -n x
          ^
[ -c flag ]:1: 'read' expected integer after -n, got 'x'

===== CASE: set -o errexit +o oops =====


  set -o errexit +o oops
  ^~~
[ -c flag ]:1: 'set' got invalid option 'oops'
osh usage error: got invalid argument 'x' to '-ast-format', expected one of: text|abbrev-text|html|abbrev-html|oheap|none
oils: got invalid option 'oops'

===== CASE: -n -c echo {1..3..-1} =====


  echo {1..3..-1}
        ^~~~~~~~
[ -c flag ]:1: Invalid step -1 for ascending integer range

===== CASE: -n -c echo {1..3..0} =====


  echo {1..3..0}
        ^~~~~~~
[ -c flag ]:1: Step can't be 0

===== CASE: -n -c echo {3..1..1} =====


  echo {3..1..1}
        ^~~~~~~
[ -c flag ]:1: Invalid step 1 for descending integer range

===== CASE: -n -c echo {3..1..0} =====


  echo {3..1..0}
        ^~~~~~~
[ -c flag ]:1: Step can't be 0

===== CASE: -n -c echo {a..Z} =====


  echo {a..Z}
        ^~~~
[ -c flag ]:1: Mismatched cases in character range

===== CASE: -n -c echo {a..z..0} =====


  echo {a..z..0}
        ^~~~~~~
[ -c flag ]:1: Step can't be 0

===== CASE: -n -c echo {a..z..-1} =====


  echo {a..z..-1}
        ^~~~~~~~
[ -c flag ]:1: Invalid step -1 for ascending character range

===== CASE: -n -c echo {z..a..1} =====


  echo {z..a..1}
        ^~~~~~~
[ -c flag ]:1: Invalid step 1 for descending character range

===== CASE: append =====


  append
  ^~~~~~
[ -c flag ]:1: 'append' expected a List as a typed arg

===== CASE: append invalid- =====


  append invalid-
  ^~~~~~
[ -c flag ]:1: 'append' expected a List as a typed arg
test/parse-errors.sh: line 895: blocks: command not found
test/parse-errors.sh: line 896: parse_brace: command not found
test/parse-errors.sh: line 897: regex_literals: command not found
test/parse-errors.sh: line 898: proc_sig: command not found
test/parse-errors.sh: line 899: proc_arg_list: command not found
test/parse-errors.sh: line 900: ysh_var: command not found
test/parse-errors.sh: line 901: ysh_expr_more: command not found
test/parse-errors.sh: line 902: ysh_hay_assign: command not found

===== CASE: -n -c echo $'\u{03bc' =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo $'\\u{03bc'" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo $'\\u{03bc'" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (SingleQuoted
          left: 
            (Token
              id: Id.Left_DollarSingleQuote
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo $'\\u{03bc'" src:(source.CFlag))
              tval: "$'"
            )
          tokens: [
            (Token
              id: Id.Unknown_Backslash
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo $'\\u{03bc'" src:(source.CFlag))
              tval: "\\"
            )
            (Token
              id: Id.Char_Literals
              col: 8
              length: 6
              span_id: 4
              line: (SourceLine line_num:1 content:"echo $'\\u{03bc'" src:(source.CFlag))
              tval: "u{03bc"
            )
          ]
          right: 
            (Token
              id: Id.Right_SingleQuote
              col: 14
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"echo $'\\u{03bc'" src:(source.CFlag))
              tval: "'"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_backslash -n -c echo parse_backslash $'\u{03bc' =====


  echo parse_backslash $'\u{03bc'
                         ^
[ -c flag ]:1: Invalid char escape in C-style string literal

===== CASE: -n -c const bad = $'\u{03bc' =====


  const bad = $'\u{03bc'
                ^
[ -c flag ]:1: Invalid char escape in C-style string literal

===== CASE: -n -c echo $'\z' =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo $'\\z'" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo $'\\z'" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (SingleQuoted
          left: 
            (Token
              id: Id.Left_DollarSingleQuote
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo $'\\z'" src:(source.CFlag))
              tval: "$'"
            )
          tokens: [
            (Token
              id: Id.Unknown_Backslash
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo $'\\z'" src:(source.CFlag))
              tval: "\\"
            )
            (Token
              id: Id.Char_Literals
              col: 8
              length: 1
              span_id: 4
              line: (SourceLine line_num:1 content:"echo $'\\z'" src:(source.CFlag))
              tval: z
            )
          ]
          right: 
            (Token
              id: Id.Right_SingleQuote
              col: 9
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"echo $'\\z'" src:(source.CFlag))
              tval: "'"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c const bad = $'\z' =====


  const bad = $'\z'
                ^
[ -c flag ]:1: Invalid char escape in C-style string literal

===== CASE: -n -c echo $'\101' =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo $'\\101'" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo $'\\101'" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (SingleQuoted
          left: 
            (Token
              id: Id.Left_DollarSingleQuote
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo $'\\101'" src:(source.CFlag))
              tval: "$'"
            )
          tokens: [
            (Token
              id: Id.Char_Octal3
              col: 7
              length: 4
              span_id: 3
              line: (SourceLine line_num:1 content:"echo $'\\101'" src:(source.CFlag))
              tval: "\\101"
            )
          ]
          right: 
            (Token
              id: Id.Right_SingleQuote
              col: 11
              length: 1
              span_id: 4
              line: (SourceLine line_num:1 content:"echo $'\\101'" src:(source.CFlag))
              tval: "'"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c const bad = $'\101' =====


  const bad = $'\101'
                ^~~~
[ -c flag ]:1: Use \xhh or \u{...} instead of octal escapes in YSH strings

===== CASE: -n -c const bad = c'\xf' =====


  const bad = c'\xf'
               ^
[ -c flag ]:1: Syntax error in expression (near Id.Left_SingleQuote)

===== CASE: -n -c echo "\z" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"\\z\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"\\z\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"\\z\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (Token
              id: Id.Lit_BadBackslash
              col: 6
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo \"\\z\"" src:(source.CFlag))
              tval: "\\"
            )
            (Token
              id: Id.Lit_Chars
              col: 7
              length: 1
              span_id: 4
              line: (SourceLine line_num:1 content:"echo \"\\z\"" src:(source.CFlag))
              tval: z
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 8
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"echo \"\\z\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_backslash -n -c echo parse_backslash "\z" =====


  echo parse_backslash "\z"
                        ^
[ -c flag ]:1: Invalid char escape in double quoted string

===== CASE: -n -c echo "\z" =====


  echo "\z"
        ^
[ -c flag ]:1: Invalid char escape in double quoted string

===== CASE: -n -c const bad = "\z" =====


  const bad = "\z"
               ^
[ -c flag ]:1: Invalid char escape in double quoted string

===== CASE: -n -c echo "\u1234" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"\\u1234\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"\\u1234\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"\\u1234\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (Token
              id: Id.Lit_BadBackslash
              col: 6
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo \"\\u1234\"" src:(source.CFlag))
              tval: "\\"
            )
            (Token
              id: Id.Lit_Chars
              col: 7
              length: 5
              span_id: 4
              line: (SourceLine line_num:1 content:"echo \"\\u1234\"" src:(source.CFlag))
              tval: u1234
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 12
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"echo \"\\u1234\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo "\u1234" =====


  echo "\u1234"
        ^
[ -c flag ]:1: Invalid char escape in double quoted string

===== CASE: -n -c const bad = "\u1234" =====


  const bad = "\u1234"
               ^
[ -c flag ]:1: Invalid char escape in double quoted string

===== CASE: -n -c echo "`echo hi`" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (CommandSub
              left_token: 
                (Token
                  id: Id.Left_Backtick
                  col: 6
                  length: 1
                  span_id: 3
                  line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                  tval: "`"
                )
              child: 
                (command.Simple
                  blame_tok: 
                    (Token
                      id: Id.Lit_Chars
                      col: 0
                      length: 4
                      span_id: 6
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "echo hi"
                          src: 
                            (source.Reparsed
                              what: backticks
                              left_token: 
                                (Token
                                  id: Id.Left_Backtick
                                  col: 6
                                  length: 1
                                  span_id: 3
                                  line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                                  tval: "`"
                                )
                              right_token: 
                                (Token
                                  id: Id.Backtick_Right
                                  col: 14
                                  length: 1
                                  span_id: 5
                                  line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                                  tval: "`"
                                )
                            )
                        )
                      tval: echo
                    )
                  more_env: []
                  words: [
                    (CompoundWord
                      parts: [
                        (Token
                          id: Id.Lit_Chars
                          col: 0
                          length: 4
                          span_id: 6
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "echo hi"
                              src: 
                                (source.Reparsed
                                  what: backticks
                                  left_token: 
                                    (Token
                                      id: Id.Left_Backtick
                                      col: 6
                                      length: 1
                                      span_id: 3
                                      line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                                      tval: "`"
                                    )
                                  right_token: 
                                    (Token
                                      id: Id.Backtick_Right
                                      col: 14
                                      length: 1
                                      span_id: 5
                                      line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                                      tval: "`"
                                    )
                                )
                            )
                          tval: echo
                        )
                      ]
                    )
                    (CompoundWord
                      parts: [
                        (Token
                          id: Id.Lit_Chars
                          col: 5
                          length: 2
                          span_id: 8
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "echo hi"
                              src: 
                                (source.Reparsed
                                  what: backticks
                                  left_token: 
                                    (Token
                                      id: Id.Left_Backtick
                                      col: 6
                                      length: 1
                                      span_id: 3
                                      line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                                      tval: "`"
                                    )
                                  right_token: 
                                    (Token
                                      id: Id.Backtick_Right
                                      col: 14
                                      length: 1
                                      span_id: 5
                                      line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                                      tval: "`"
                                    )
                                )
                            )
                          tval: hi
                        )
                      ]
                    )
                  ]
                  redirects: []
                  do_fork: T
                )
              right: 
                (Token
                  id: Id.Backtick_Right
                  col: 14
                  length: 1
                  span_id: 5
                  line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
                  tval: "`"
                )
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 15
              length: 1
              span_id: 10
              line: (SourceLine line_num:1 content:"echo \"`echo hi`\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo "`echo hi`" =====


  echo "`echo hi`"
        ^
[ -c flag ]:1: Use $(cmd) instead of backticks (parse_backticks)

===== CASE: -n -c const bad = "`echo hi`" =====


  const bad = "`echo hi`"
               ^
[ -c flag ]:1: Invalid backtick: use $(cmd) or \` in YSH strings

===== CASE: -n -c setvar x = "\z" =====


  setvar x = "\z"
              ^
[ -c flag ]:1: Invalid char escape in double quoted string

===== CASE: -n -c setvar x = $'\z' =====


  setvar x = $'\z'
               ^
[ -c flag ]:1: Invalid char escape in C-style string literal

===== CASE: -n -c echo `echo hi` =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (CommandSub
          left_token: 
            (Token
              id: Id.Left_Backtick
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
              tval: "`"
            )
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 0
                  length: 4
                  span_id: 5
                  line: 
                    (SourceLine
                      line_num: 1
                      content: "echo hi"
                      src: 
                        (source.Reparsed
                          what: backticks
                          left_token: 
                            (Token
                              id: Id.Left_Backtick
                              col: 5
                              length: 1
                              span_id: 2
                              line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
                              tval: "`"
                            )
                          right_token: 
                            (Token
                              id: Id.Backtick_Right
                              col: 13
                              length: 1
                              span_id: 4
                              line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
                              tval: "`"
                            )
                        )
                    )
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 0
                      length: 4
                      span_id: 5
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "echo hi"
                          src: 
                            (source.Reparsed
                              what: backticks
                              left_token: 
                                (Token
                                  id: Id.Left_Backtick
                                  col: 5
                                  length: 1
                                  span_id: 2
                                  line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
                                  tval: "`"
                                )
                              right_token: 
                                (Token
                                  id: Id.Backtick_Right
                                  col: 13
                                  length: 1
                                  span_id: 4
                                  line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
                                  tval: "`"
                                )
                            )
                        )
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 5
                      length: 2
                      span_id: 7
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "echo hi"
                          src: 
                            (source.Reparsed
                              what: backticks
                              left_token: 
                                (Token
                                  id: Id.Left_Backtick
                                  col: 5
                                  length: 1
                                  span_id: 2
                                  line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
                                  tval: "`"
                                )
                              right_token: 
                                (Token
                                  id: Id.Backtick_Right
                                  col: 13
                                  length: 1
                                  span_id: 4
                                  line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
                                  tval: "`"
                                )
                            )
                        )
                      tval: hi
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          right: 
            (Token
              id: Id.Backtick_Right
              col: 13
              length: 1
              span_id: 4
              line: (SourceLine line_num:1 content:"echo `echo hi`" src:(source.CFlag))
              tval: "`"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c echo "foo = `echo hi`" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (Token
              id: Id.Lit_Chars
              col: 6
              length: 6
              span_id: 3
              line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
              tval: "foo = "
            )
            (CommandSub
              left_token: 
                (Token
                  id: Id.Left_Backtick
                  col: 12
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
                  tval: "`"
                )
              child: 
                (command.Simple
                  blame_tok: 
                    (Token
                      id: Id.Lit_Chars
                      col: 0
                      length: 4
                      span_id: 7
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "echo hi"
                          src: 
                            (source.Reparsed
                              what: backticks
                              left_token: 
                                (Token
                                  id: Id.Left_Backtick
                                  col: 12
                                  length: 1
                                  span_id: 4
                                  line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
                                  tval: "`"
                                )
                              right_token: 
                                (Token
                                  id: Id.Backtick_Right
                                  col: 20
                                  length: 1
                                  span_id: 6
                                  line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
                                  tval: "`"
                                )
                            )
                        )
                      tval: echo
                    )
                  more_env: []
                  words: [
                    (CompoundWord
                      parts: [
                        (Token
                          id: Id.Lit_Chars
                          col: 0
                          length: 4
                          span_id: 7
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "echo hi"
                              src: 
                                (source.Reparsed
                                  what: backticks
                                  left_token: 
                                    (Token
                                      id: Id.Left_Backtick
                                      col: 12
                                      length: 1
                                      span_id: 4
                                      line: 
                                        (SourceLine
                                          line_num: 1
                                          content: "echo \"foo = `echo hi`\""
                                          src: (source.CFlag)
                                        )
                                      tval: "`"
                                    )
                                  right_token: 
                                    (Token
                                      id: Id.Backtick_Right
                                      col: 20
                                      length: 1
                                      span_id: 6
                                      line: 
                                        (SourceLine
                                          line_num: 1
                                          content: "echo \"foo = `echo hi`\""
                                          src: (source.CFlag)
                                        )
                                      tval: "`"
                                    )
                                )
                            )
                          tval: echo
                        )
                      ]
                    )
                    (CompoundWord
                      parts: [
                        (Token
                          id: Id.Lit_Chars
                          col: 5
                          length: 2
                          span_id: 9
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "echo hi"
                              src: 
                                (source.Reparsed
                                  what: backticks
                                  left_token: 
                                    (Token
                                      id: Id.Left_Backtick
                                      col: 12
                                      length: 1
                                      span_id: 4
                                      line: 
                                        (SourceLine
                                          line_num: 1
                                          content: "echo \"foo = `echo hi`\""
                                          src: (source.CFlag)
                                        )
                                      tval: "`"
                                    )
                                  right_token: 
                                    (Token
                                      id: Id.Backtick_Right
                                      col: 20
                                      length: 1
                                      span_id: 6
                                      line: 
                                        (SourceLine
                                          line_num: 1
                                          content: "echo \"foo = `echo hi`\""
                                          src: (source.CFlag)
                                        )
                                      tval: "`"
                                    )
                                )
                            )
                          tval: hi
                        )
                      ]
                    )
                  ]
                  redirects: []
                  do_fork: T
                )
              right: 
                (Token
                  id: Id.Backtick_Right
                  col: 20
                  length: 1
                  span_id: 6
                  line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
                  tval: "`"
                )
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 21
              length: 1
              span_id: 11
              line: (SourceLine line_num:1 content:"echo \"foo = `echo hi`\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_backticks -n -c echo `echo hi` =====


  echo `echo hi`
       ^
[ -c flag ]:1: Use $(cmd) instead of backticks (parse_backticks)

===== CASE: +O parse_backticks -n -c echo "foo = `echo hi`" =====


  echo "foo = `echo hi`"
              ^
[ -c flag ]:1: Use $(cmd) instead of backticks (parse_backticks)

===== CASE: -n -c echo $ =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo $" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo $" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Dollar
          col: 5
          length: 1
          span_id: 2
          line: (SourceLine line_num:1 content:"echo $" src:(source.CFlag))
          tval: "$"
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo $ =====


  echo $
       ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo $ =====


  echo $
       ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo $: =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo $:" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo $:" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Dollar
          col: 5
          length: 1
          span_id: 2
          line: (SourceLine line_num:1 content:"echo $:" src:(source.CFlag))
          tval: "$"
        )
        (Token
          id: Id.Lit_Colon
          col: 6
          length: 1
          span_id: 3
          line: (SourceLine line_num:1 content:"echo $:" src:(source.CFlag))
          tval: ":"
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo $: =====


  echo $:
       ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo $: =====


  echo $:
       ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "$" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"$\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"$\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"$\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (Token
              id: Id.Lit_Dollar
              col: 6
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo \"$\"" src:(source.CFlag))
              tval: "$"
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 7
              length: 1
              span_id: 4
              line: (SourceLine line_num:1 content:"echo \"$\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo "$" =====


  echo "$"
        ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "$" =====


  echo "$"
        ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "$:" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"$:\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"$:\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"$:\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (Token
              id: Id.Lit_Dollar
              col: 6
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo \"$:\"" src:(source.CFlag))
              tval: "$"
            )
            (Token
              id: Id.Lit_Chars
              col: 7
              length: 1
              span_id: 4
              line: (SourceLine line_num:1 content:"echo \"$:\"" src:(source.CFlag))
              tval: ":"
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 8
              length: 1
              span_id: 5
              line: (SourceLine line_num:1 content:"echo \"$:\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo "$:" =====


  echo "$:"
        ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "$:" =====


  echo "$:"
        ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo ${x:-$} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.Unary
              op: 
                (Token
                  id: Id.VTest_ColonHyphen
                  col: 8
                  length: 2
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
                  tval: _
                )
              arg_word: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Dollar
                      col: 10
                      length: 1
                      span_id: 5
                      line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
                      tval: "$"
                    )
                  ]
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 11
              length: 1
              span_id: 6
              line: (SourceLine line_num:1 content:"echo ${x:-$}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo ${x:-$} =====


  echo ${x:-$}
            ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo ${x:-$} =====


  echo ${x:-$}
            ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo ${x:-$:} =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (BracedVarSub
          left: 
            (Token
              id: Id.Left_DollarBrace
              col: 5
              length: 2
              span_id: 2
              line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
              tval: "${"
            )
          token: 
            (Token
              id: Id.VSub_Name
              col: 7
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
              tval: x
            )
          var_name: x
          suffix_op: 
            (suffix_op.Unary
              op: 
                (Token
                  id: Id.VTest_ColonHyphen
                  col: 8
                  length: 2
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
                  tval: _
                )
              arg_word: 
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Dollar
                      col: 10
                      length: 1
                      span_id: 5
                      line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
                      tval: "$"
                    )
                    (Token
                      id: Id.Lit_Chars
                      col: 11
                      length: 1
                      span_id: 6
                      line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
                      tval: ":"
                    )
                  ]
                )
            )
          right: 
            (Token
              id: Id.Right_DollarBrace
              col: 12
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"echo ${x:-$:}" src:(source.CFlag))
              tval: "}"
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo ${x:-$:} =====


  echo ${x:-$:}
            ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo ${x:-$:} =====


  echo ${x:-$:}
            ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "${x:-$}" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (BracedVarSub
              left: 
                (Token
                  id: Id.Left_DollarBrace
                  col: 6
                  length: 2
                  span_id: 3
                  line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
                  tval: "${"
                )
              token: 
                (Token
                  id: Id.VSub_Name
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
                  tval: x
                )
              var_name: x
              suffix_op: 
                (suffix_op.Unary
                  op: 
                    (Token
                      id: Id.VTest_ColonHyphen
                      col: 9
                      length: 2
                      span_id: 5
                      line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
                      tval: _
                    )
                  arg_word: 
                    (CompoundWord
                      parts: [
                        (Token
                          id: Id.Lit_Dollar
                          col: 11
                          length: 1
                          span_id: 6
                          line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
                          tval: "$"
                        )
                      ]
                    )
                )
              right: 
                (Token
                  id: Id.Right_DollarBrace
                  col: 12
                  length: 1
                  span_id: 7
                  line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
                  tval: "}"
                )
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 13
              length: 1
              span_id: 8
              line: (SourceLine line_num:1 content:"echo \"${x:-$}\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo "${x:-$}" =====


  echo "${x:-$}"
             ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "${x:-$}" =====


  echo "${x:-$}"
             ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "${x:-$:}" =====


(command.Simple
  blame_tok: 
    (Token
      id: Id.Lit_Chars
      col: 0
      length: 4
      span_id: 0
      line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
      tval: echo
    )
  more_env: []
  words: [
    (CompoundWord
      parts: [
        (Token
          id: Id.Lit_Chars
          col: 0
          length: 4
          span_id: 0
          line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
          tval: echo
        )
      ]
    )
    (CompoundWord
      parts: [
        (DoubleQuoted
          left: 
            (Token
              id: Id.Left_DoubleQuote
              col: 5
              length: 1
              span_id: 2
              line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
              tval: "\""
            )
          parts: [
            (BracedVarSub
              left: 
                (Token
                  id: Id.Left_DollarBrace
                  col: 6
                  length: 2
                  span_id: 3
                  line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
                  tval: "${"
                )
              token: 
                (Token
                  id: Id.VSub_Name
                  col: 8
                  length: 1
                  span_id: 4
                  line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
                  tval: x
                )
              var_name: x
              suffix_op: 
                (suffix_op.Unary
                  op: 
                    (Token
                      id: Id.VTest_ColonHyphen
                      col: 9
                      length: 2
                      span_id: 5
                      line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
                      tval: _
                    )
                  arg_word: 
                    (CompoundWord
                      parts: [
                        (Token
                          id: Id.Lit_Dollar
                          col: 11
                          length: 1
                          span_id: 6
                          line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
                          tval: "$"
                        )
                        (Token
                          id: Id.Lit_Chars
                          col: 12
                          length: 1
                          span_id: 7
                          line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
                          tval: ":"
                        )
                      ]
                    )
                )
              right: 
                (Token
                  id: Id.Right_DollarBrace
                  col: 13
                  length: 1
                  span_id: 8
                  line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
                  tval: "}"
                )
            )
          ]
          right: 
            (Token
              id: Id.Right_DoubleQuote
              col: 14
              length: 1
              span_id: 9
              line: (SourceLine line_num:1 content:"echo \"${x:-$:}\"" src:(source.CFlag))
              tval: "\""
            )
        )
      ]
    )
  ]
  redirects: []
  do_fork: T
)

===== CASE: +O parse_dollar -n -c echo "${x:-$:}" =====


  echo "${x:-$:}"
             ^
[ -c flag ]:1: Literal $ should be quoted like \$

===== CASE: -n -c echo "${x:-$:}" =====


  echo "${x:-$:}"
             ^
[ -c flag ]:1: Literal $ should be quoted like \$
test/parse-errors.sh: line 906: parse_backslash: command not found

===== CASE: -n -c ((1 > 0 && 43 > 42)) =====


(command.DParen
  left: 
    (Token
      id: Id.Op_DLeftParen
      col: 0
      length: 2
      span_id: 0
      line: (SourceLine line_num:1 content:"((1 > 0 && 43 > 42))" src:(source.CFlag))
      tval: _
    )
  child: 
    (arith_expr.Binary
      op_id: Id.Arith_DAmp
      left: 
        (arith_expr.Binary
          op_id: Id.Arith_Great
          left: 
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Digits
                  col: 2
                  length: 1
                  span_id: 1
                  line: (SourceLine line_num:1 content:"((1 > 0 && 43 > 42))" src:(source.CFlag))
                  tval: 1
                )
              ]
            )
          right: 
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Digits
                  col: 6
                  length: 1
                  span_id: 5
                  line: (SourceLine line_num:1 content:"((1 > 0 && 43 > 42))" src:(source.CFlag))
                  tval: 0
                )
              ]
            )
        )
      right: 
        (arith_expr.Binary
          op_id: Id.Arith_Great
          left: 
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Digits
                  col: 11
                  length: 2
                  span_id: 9
                  line: (SourceLine line_num:1 content:"((1 > 0 && 43 > 42))" src:(source.CFlag))
                  tval: 43
                )
              ]
            )
          right: 
            (CompoundWord
              parts: [
                (Token
                  id: Id.Lit_Digits
                  col: 16
                  length: 2
                  span_id: 13
                  line: (SourceLine line_num:1 content:"((1 > 0 && 43 > 42))" src:(source.CFlag))
                  tval: 42
                )
              ]
            )
        )
    )
  right: 
    (Token
      id: Id.Op_DRightParen
      col: 19
      length: 1
      span_id: 15
      line: (SourceLine line_num:1 content:"((1 > 0 && 43 > 42))" src:(source.CFlag))
      tval: _
    )
  redirects: []
)

===== CASE: -n -c ((1 > 0 && 43 > 42)) =====


  ((1 > 0 && 43 > 42))
  ^~
[ -c flag ]:1: You may want a space between parens (parse_dparen)

===== CASE: -n -c if ((1 > 0 && 43 > 42)); then echo yes; fi =====


(command.If
  if_kw: 
    (Token
      id: Id.KW_If
      col: 0
      length: 2
      span_id: 0
      line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
      tval: if
    )
  arms: [
    (IfArm
      keyword: 
        (Token
          id: Id.KW_If
          col: 0
          length: 2
          span_id: 0
          line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
          tval: if
        )
      cond: 
        (condition.Shell
          commands: [
            (command.Sentence
              child: 
                (command.DParen
                  left: 
                    (Token
                      id: Id.Op_DLeftParen
                      col: 3
                      length: 2
                      span_id: 2
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                          src: (source.CFlag)
                        )
                      tval: _
                    )
                  child: 
                    (arith_expr.Binary
                      op_id: Id.Arith_DAmp
                      left: 
                        (arith_expr.Binary
                          op_id: Id.Arith_Great
                          left: 
                            (CompoundWord
                              parts: [
                                (Token
                                  id: Id.Lit_Digits
                                  col: 5
                                  length: 1
                                  span_id: 3
                                  line: 
                                    (SourceLine
                                      line_num: 1
                                      content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                                      src: (source.CFlag)
                                    )
                                  tval: 1
                                )
                              ]
                            )
                          right: 
                            (CompoundWord
                              parts: [
                                (Token
                                  id: Id.Lit_Digits
                                  col: 9
                                  length: 1
                                  span_id: 7
                                  line: 
                                    (SourceLine
                                      line_num: 1
                                      content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                                      src: (source.CFlag)
                                    )
                                  tval: 0
                                )
                              ]
                            )
                        )
                      right: 
                        (arith_expr.Binary
                          op_id: Id.Arith_Great
                          left: 
                            (CompoundWord
                              parts: [
                                (Token
                                  id: Id.Lit_Digits
                                  col: 14
                                  length: 2
                                  span_id: 11
                                  line: 
                                    (SourceLine
                                      line_num: 1
                                      content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                                      src: (source.CFlag)
                                    )
                                  tval: 43
                                )
                              ]
                            )
                          right: 
                            (CompoundWord
                              parts: [
                                (Token
                                  id: Id.Lit_Digits
                                  col: 19
                                  length: 2
                                  span_id: 15
                                  line: 
                                    (SourceLine
                                      line_num: 1
                                      content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                                      src: (source.CFlag)
                                    )
                                  tval: 42
                                )
                              ]
                            )
                        )
                    )
                  right: 
                    (Token
                      id: Id.Op_DRightParen
                      col: 22
                      length: 1
                      span_id: 17
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                          src: (source.CFlag)
                        )
                      tval: _
                    )
                  redirects: []
                )
              terminator: 
                (Token
                  id: Id.Op_Semi
                  col: 23
                  length: 1
                  span_id: 18
                  line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
                  tval: _
                )
            )
          ]
        )
      then_kw: 
        (Token
          id: Id.KW_Then
          col: 25
          length: 4
          span_id: 20
          line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
          tval: then
        )
      action: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 30
                  length: 4
                  span_id: 22
                  line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 30
                      length: 4
                      span_id: 22
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                          src: (source.CFlag)
                        )
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 35
                      length: 3
                      span_id: 24
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "if ((1 > 0 && 43 > 42)); then echo yes; fi"
                          src: (source.CFlag)
                        )
                      tval: yes
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 38
              length: 1
              span_id: 25
              line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
              tval: _
            )
        )
      ]
      spids: [0 20]
    )
  ]
  else_action: []
  fi_kw: 
    (Token
      id: Id.KW_Fi
      col: 40
      length: 2
      span_id: 27
      line: (SourceLine line_num:1 content:"if ((1 > 0 && 43 > 42)); then echo yes; fi" src:(source.CFlag))
      tval: fi
    )
  redirects: []
)

===== CASE: -n -c if ((1 > 0 && 43 > 42)); then echo yes; fi =====


  if ((1 > 0 && 43 > 42)); then echo yes; fi
     ^~
[ -c flag ]:1: You may want a space between parens (parse_dparen)

===== CASE: -n -c for ((x = 1; x < 5; ++x)); do echo $x; done =====


(command.ForExpr
  keyword: 
    (Token
      id: Id.KW_For
      col: 0
      length: 3
      span_id: 0
      line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
      tval: for
    )
  init: 
    (arith_expr.BinaryAssign
      op_id: Id.Arith_Equal
      left: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 6
              length: 1
              span_id: 3
              line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
      right: 
        (CompoundWord
          parts: [
            (Token
              id: Id.Lit_Digits
              col: 10
              length: 1
              span_id: 7
              line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
              tval: 1
            )
          ]
        )
    )
  cond: 
    (arith_expr.Binary
      op_id: Id.Arith_Less
      left: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 13
              length: 1
              span_id: 10
              line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
      right: 
        (CompoundWord
          parts: [
            (Token
              id: Id.Lit_Digits
              col: 17
              length: 1
              span_id: 14
              line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
              tval: 5
            )
          ]
        )
    )
  update: 
    (arith_expr.UnaryAssign
      op_id: Id.Arith_DPlus
      child: 
        (SimpleVarSub
          left: 
            (Token
              id: Id.Lit_ArithVarLike
              col: 22
              length: 1
              span_id: 18
              line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
              tval: x
            )
          var_name: x
        )
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 27
          length: 2
          span_id: 23
          line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
          tval: do
        )
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 30
                  length: 4
                  span_id: 25
                  line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 30
                      length: 4
                      span_id: 25
                      line: 
                        (SourceLine
                          line_num: 1
                          content: "for ((x = 1; x < 5; ++x)); do echo $x; done"
                          src: (source.CFlag)
                        )
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 35
                          length: 2
                          span_id: 27
                          line: 
                            (SourceLine
                              line_num: 1
                              content: "for ((x = 1; x < 5; ++x)); do echo $x; done"
                              src: (source.CFlag)
                            )
                          tval: "$x"
                        )
                      var_name: x
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 37
              length: 1
              span_id: 28
              line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
              tval: _
            )
        )
      ]
      right: 
        (Token
          id: Id.KW_Done
          col: 39
          length: 4
          span_id: 30
          line: (SourceLine line_num:1 content:"for ((x = 1; x < 5; ++x)); do echo $x; done" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)

===== CASE: -n -c for ((x = 1; x < 5; ++x)); do echo $x; done =====


  for ((x = 1; x < 5; ++x)); do echo $x; done
      ^~
[ -c flag ]:1: Bash for loops aren't allowed (parse_dparen)

===== CASE: -n -c if (1 > 0 and 43 > 42) { echo yes } =====


(command.If
  if_kw: <Id.KW_If if>
  arms: [
    (IfArm
      keyword: <Id.KW_If if>
      cond: 
        (condition.YshExpr
          e: 
            (expr.Binary
              op: <Id.Expr_And and>
              left: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 1>)
                  ops: [<Id.Arith_Great _>]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 0>)]
                )
              right: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 43>)
                  ops: [<Id.Arith_Great _>]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 42>)]
                )
            )
        )
      action: [
        (command.Simple
          blame_tok: <echo>
          more_env: []
          words: [{<echo>} {<yes>}]
          redirects: []
          do_fork: T
        )
      ]
      spids: [0]
    )
  ]
  else_action: []
  redirects: []
)

===== CASE: -n -c if ( (1 > 0 and 43 > 42) ) { echo yes } =====


(command.If
  if_kw: <Id.KW_If if>
  arms: [
    (IfArm
      keyword: <Id.KW_If if>
      cond: 
        (condition.YshExpr
          e: 
            (expr.Binary
              op: <Id.Expr_And and>
              left: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 1>)
                  ops: [<Id.Arith_Great _>]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 0>)]
                )
              right: 
                (expr.Compare
                  left: (expr.Const c:<Id.Expr_DecInt 43>)
                  ops: [<Id.Arith_Great _>]
                  comparators: [(expr.Const c:<Id.Expr_DecInt 42>)]
                )
            )
        )
      action: [
        (command.Simple
          blame_tok: <echo>
          more_env: []
          words: [{<echo>} {<yes>}]
          redirects: []
          do_fork: T
        )
      ]
      spids: [0]
    )
  ]
  else_action: []
  redirects: []
)
test/parse-errors.sh: line 908: ysh_to_make_nicer: command not found
test/parse-errors.sh: line 909: ysh_nested_proc: command not found
test/parse-errors.sh: line 910: ysh_var_decl: command not found
test/parse-errors.sh: line 911: ysh_place_mutation: command not found
test/parse-errors.sh: line 912: ysh_case: command not found
test/parse-errors.sh: line 913: ysh_for: command not found
test/parse-errors.sh: line 914: ysh_for_parse_bare_word: command not found
test/parse-errors.sh: line 915: oils_issue_1118: command not found

===== CASE: -n -c for x in & =====


  for x in &
           ^
[ -c flag ]:1: Invalid word in for loop

===== CASE: -n -c for (( i=0; i<10; i++ )) ls =====


  for (( i=0; i<10; i++ )) ls
                           ^~
[ -c flag ]:1: Invalid word after for expression

===== CASE: -n -c for ( i=0; i<10; i++ ) =====


  for ( i=0; i<10; i++ )
      ^
[ -c flag ]:1: Expected loop variable (a constant word)

===== CASE: -n -c for $x in 1 2 3; do echo $i; done =====


  for $x in 1 2 3; do echo $i; done
      ^~
[ -c flag ]:1: Expected loop variable (a constant word)

===== CASE: -n -c for x.y in 1 2 3; do echo $i; done =====


  for x.y in 1 2 3; do echo $i; done
      ^~~
[ -c flag ]:1: Invalid loop variable name 'x.y'

===== CASE: -n -c for x in 1 2 3; & =====


  for x in 1 2 3; &
                  ^
[ -c flag ]:1: Expected word type Id.KW_Do, got Id.Op_Amp

===== CASE: -n -c for foo BAD =====


  for foo BAD
             ^
[ -c flag ]:1: Expected loop variable (a constant word)

===== CASE: -n -c for var in x; do echo $var; done =====


(command.ForEach
  keyword: 
    (Token
      id: Id.KW_For
      col: 0
      length: 3
      span_id: 0
      line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
      tval: for
    )
  iter_names: [var]
  iterable: 
    (for_iter.Words
      words: [
        (CompoundWord
          parts: [
            (Token
              id: Id.Lit_Chars
              col: 11
              length: 1
              span_id: 6
              line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
              tval: x
            )
          ]
        )
      ]
    )
  semi_tok: 
    (Token
      id: Id.Op_Semi
      col: 12
      length: 1
      span_id: 7
      line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
      tval: _
    )
  body: 
    (command.DoGroup
      left: 
        (Token
          id: Id.KW_Do
          col: 14
          length: 2
          span_id: 9
          line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
          tval: do
        )
      children: [
        (command.Sentence
          child: 
            (command.Simple
              blame_tok: 
                (Token
                  id: Id.Lit_Chars
                  col: 17
                  length: 4
                  span_id: 11
                  line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
                  tval: echo
                )
              more_env: []
              words: [
                (CompoundWord
                  parts: [
                    (Token
                      id: Id.Lit_Chars
                      col: 17
                      length: 4
                      span_id: 11
                      line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
                      tval: echo
                    )
                  ]
                )
                (CompoundWord
                  parts: [
                    (SimpleVarSub
                      left: 
                        (Token
                          id: Id.VSub_DollarName
                          col: 22
                          length: 4
                          span_id: 13
                          line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
                          tval: "$var"
                        )
                      var_name: var
                    )
                  ]
                )
              ]
              redirects: []
              do_fork: T
            )
          terminator: 
            (Token
              id: Id.Op_Semi
              col: 26
              length: 1
              span_id: 14
              line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
              tval: _
            )
        )
      ]
      right: 
        (Token
          id: Id.KW_Done
          col: 28
          length: 4
          span_id: 16
          line: (SourceLine line_num:1 content:"for var in x; do echo $var; done" src:(source.CFlag))
          tval: done
        )
    )
  redirects: []
)
test/parse-errors.sh: line 918: parse_at: command not found
test/parse-errors.sh: line 788: _parse-error: command not found

===== CASE: -n -c write -- $f(x) =====


  write -- $f(x)
             ^
[ -c flag ]:1: Space required before (

===== CASE: -n -c write -- @[sorted(x)] =====


  write -- @[sorted(x)]
                   ^
[ -c flag ]:1: Unexpected left paren (might need a space before it)

===== CASE: -n -c write -- @[sorted(x)] =====


(command.Simple
  blame_tok: <write>
  more_env: []
  words: [
    {<write>}
    {<-->}
    {
      (word_part.ExprSub
        left: <Id.Lit_AtLBracket "@[">
        child: 
          (expr.FuncCall
            func: (expr.Var name:<Id.Expr_Name sorted>)
            args: 
              (ArgList
                left: <Id.Op_LParen _>
                pos_args: [(expr.Var name:<Id.Expr_Name x>)]
                named_args: []
                right: <Id.Op_RParen _>
              )
          )
        right: <Id.Op_RBracket _>
      )
    }
  ]
  redirects: []
  do_fork: T
)

===== CASE: -n -c 
f() {
  write -- @[sorted(x)]
}
 =====


    write -- @[sorted(x)]
                     ^
[ -c flag ]:3: Unexpected left paren (might need a space before it)

===== CASE: -n -c 
f() {
  write -- @[sorted(x)]
}
 =====


(command.ShFunction
  name_tok: <f>
  name: f
  body: 
    (BraceGroup
      left: <Id.Lit_LBrace "{">
      children: [
        (command.Simple
          blame_tok: <write>
          more_env: []
          words: [
            {<write>}
            {<-->}
            {
              (word_part.ExprSub
                left: <Id.Lit_AtLBracket "@[">
                child: 
                  (expr.FuncCall
                    func: (expr.Var name:<Id.Expr_Name sorted>)
                    args: 
                      (ArgList
                        left: <Id.Op_LParen _>
                        pos_args: [(expr.Var name:<Id.Expr_Name x>)]
                        named_args: []
                        right: <Id.Op_RParen _>
                      )
                  )
                right: <Id.Op_RBracket _>
              )
            }
          ]
          redirects: []
          do_fork: T
        )
      ]
      redirects: []
      right: <Id.Lit_RBrace "}">
    )
)

===== CASE: -n -c 
f() {
  write -- @sorted (( z ))
}
 =====


    write -- @sorted (( z ))
                     ^~
[ -c flag ]:3: Invalid word while parsing command list

===== CASE: 
  code="printf % x"
  eval $code
   =====


  %
   ^
[ printf word at line 1 of [ eval word at line 3 of [ -c flag ] ] ]:1: Expected a printf format character

===== CASE: 
  x="echo )"
  eval $x
   =====


  echo )
       ^
[ eval word at line 3 of [ -c flag ] ]:1: Invalid word while parsing command line

----------------------


===== CASE: test/parse-errors/01-bad-func.sh =====

  foo (,)
       ^
test/parse-errors/01-bad-func.sh:15: Syntax error in expression (near Id.Arith_Comma)

===== CASE: test/parse-errors/02-bad-func.sh =====

  foo()
         ^
test/parse-errors/02-bad-func.sh:3: Unexpected word while parsing compound command

===== CASE: test/parse-errors/05-unterminated-single.sh =====

A
B
  echo 'C
       ^
test/parse-errors/05-unterminated-single.sh:5: Unexpected EOF in single-quoted string that began here

===== CASE: test/parse-errors/06-unterminated-double-long.sh =====

A
B
  echo 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 "
                                                                                               ^
test/parse-errors/06-unterminated-double-long.sh:9: Unexpected EOF reading double-quoted string that began here

===== CASE: test/parse-errors/06-unterminated-double.sh =====

A
B
  echo "0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789 0123456789
       ^
test/parse-errors/06-unterminated-double.sh:6: Unexpected EOF reading double-quoted string that began here

===== CASE: test/parse-errors/07-unterminated-here-doc-2.sh =====

  cat << "$@"
         ^
test/parse-errors/07-unterminated-here-doc-2.sh:2: Invalid here doc delimiter

===== CASE: test/parse-errors/07-unterminated-here-doc.sh =====

  cat <<EOF
      ^~
test/parse-errors/07-unterminated-here-doc.sh:5: Couldn't find terminator for here doc that starts here