# -*- shell-script -*-
# alias.sh - gdb-like "alias" debugger command
#
#   Copyright (C) 2008, 2016 Rocky Bernstein rocky@gnu.org
#
#   This program is free software; you can redistribute it and/or
#   modify it under the terms of the GNU General Public License as
#   published by the Free Software Foundation; either version 2, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
#   General Public License for more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program; see the file COPYING.  If not, write to the Free Software
#   Foundation, 59 Temple Place, Suite 330, Boston, MA 02111 USA.

_Dbg_help_add alias \
'**alias** *alias-name* *debugger-command*

Make *alias-name* be an alias for *debugger-command*.

Examples:
---------

    alias cat list   # "cat prog.py" is the same as "list prog.py"
    alias s   step   # "s" is now an alias for "step".
                     # The above example is done by default.

See also:
---------

**unalias** and **show alias**.
'

proc _Dbg_do_alias {
  if (($# != 2))  {
      _Dbg_errmsg "Got $Argc parameters, but need 2."
      return 1
  }
  _Dbg_alias_add $1 $2
  return $?
}

_Dbg_help_add unalias \
'**unalias** *name*

Remove debugger command alias *name*.

Use **show aliases** to get a list the aliases in effect.
' 1

proc _Dbg_do_unalias {
  if (($# != 1))  {
      _Dbg_errmsg "Got $Argc parameters, but need 1."
      return 1
  }
  _Dbg_alias_remove $1
  return 0
}
(CommandList
  children: [
    (C {(_Dbg_help_add)} {(alias)} 
      {
        (SQ <"**alias** *alias-name* *debugger-command*\n"> <"\n"> 
          <"Make *alias-name* be an alias for *debugger-command*.\n"> <"\n"> <"Examples:\n"> <"---------\n"> <"\n"> 
          <"    alias cat list   # \"cat prog.py\" is the same as \"list prog.py\"\n"> <"    alias s   step   # \"s\" is now an alias for \"step\".\n"> 
          <"                     # The above example is done by default.\n"> <"\n"> <"See also:\n"> <"---------\n"> <"\n"> <"**unalias** and **show alias**.\n">
        )
      }
    )
    (FuncDef
      name: _Dbg_do_alias
      body: 
        (BraceGroup
          children: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_NEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 2)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(DQ ("Got ") ($ VSub_Pound "$#") (" parameters, but need 2."))})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 99]
                )
              ]
              spids: [-1 116]
            )
            (C {(_Dbg_alias_add)} {($ VSub_Number "$1")} {($ VSub_Number "$2")})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{($ VSub_QMark "$?")})
          ]
          spids: [83]
        )
      spids: [79 82]
    )
    (C {(_Dbg_help_add)} {(unalias)} 
      {
        (SQ <"**unalias** *name*\n"> <"\n"> <"Remove debugger command alias *name*.\n"> <"\n"> 
          <"Use **show aliases** to get a list the aliases in effect.\n">
        )
      } {(1)}
    )
    (FuncDef
      name: _Dbg_do_unalias
      body: 
        (BraceGroup
          children: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DParen
                          child: 
                            (ArithBinary
                              op_id: Arith_NEqual
                              left: (ArithWord w:{($ VSub_Pound "$#")})
                              right: (ArithWord w:{(Lit_Digits 1)})
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (C {(_Dbg_errmsg)} {(DQ ("Got ") ($ VSub_Pound "$#") (" parameters, but need 1."))})
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 169]
                )
              ]
              spids: [-1 186]
            )
            (C {(_Dbg_alias_remove)} {($ VSub_Number "$1")})
            (ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})
          ]
          spids: [153]
        )
      spids: [149 152]
    )
  ]
)