#!/bin/bash
# Author: Alexander Epstein https://github.com/alexanderepstein

global currentVersion := '"1.11.1'"
global state := ''""

proc checkOpenSSL
{
  if  ! command -v openssl &>/dev/null ;{
    echo "Error: to use this tool openssl must be installed" > !2
    return 1
  } else {
    return 0
  }
}
## uses openssl aes 256 cbc encryption to encrypt file salting it with password designated by user
proc encrypt
{
  echo "Encrypting $1..."
  openssl enc -aes-256-cbc -salt -a -in $1 -out $2 || do { echo "File not found"; return 1; }
  echo "Successfully encrypted"
}

## uses openssl aes 256 cbc decryption to decrypt file
proc decrypt
{
  echo "Decrypting $1..."
  openssl enc -aes-256-cbc -d -a -in $1 -out $2 || do { echo "File not found"; return 1; }
  echo "Successfully decrypted"
}

proc update
{
  # Author: Alexander Epstein https://github.com/alexanderepstein
  # Update utility version 1.2.0
  # To test the tool enter in the defualt values that are in the examples for each variable
  global repositoryName := '"Bash-Snippets'" #Name of repostiory to be updated ex. Sandman-Lite
  global githubUserName := '"alexanderepstein'" #username that hosts the repostiory ex. alexanderepstein
  global nameOfInstallFile := '"install.sh'" # change this if the installer file has a different name be sure to include file extension if there is one
  global latestVersion := $[curl -s https://api.github.com/repos/$githubUserName/$repositoryName/tags | grep -Eo '"name":.*?[^\\]",'| head -1 | grep -Eo "[0-9.]+] #always grabs the tag without the v option

  if [[ $currentVersion == "" || $repositoryName == "" || $githubUserName == "" || $nameOfInstallFile == "" ]]{
    echo "Error: update utility has not been configured correctly." > !2
    exit 1
  } elif [[ $latestVersion == "" ]]{
    echo "Error: no active internet connection" > !2
    exit 1
  } else {
    if [[ "$latestVersion" != "$currentVersion" ]] {
      echo "Version $latestVersion available"
      echo -n "Do you wish to update $repositoryName [Y/n]: "
      read -r answer
      if [[ "$answer" == "Y" || "$answer" == "y" ]] {
        cd  ~ || do { echo 'Update Failed' ; exit 1 ; }
        if [[ -d  ~/$repositoryName ]] { rm -r -f $repositoryName  ||  do { echo "Permissions Error: try running the update as sudo"; exit 1; } ; }
        git clone "https://github.com/$githubUserName/$repositoryName" || do { echo "Couldn't download latest version" ; exit 1; }
        cd $repositoryName ||  do { echo 'Update Failed' ; exit 1 ;}
        git checkout "v$latestVersion" !2 > /dev/null || git checkout $latestVersion !2 > /dev/null || echo "Couldn't git checkout to stable release, updating to latest commit."
        chmod a+x install.sh #this might be necessary in your case but wasnt in mine.
        ./$nameOfInstallFile "update" || exit 1
        cd ..
        rm -r -f $repositoryName ||  do { echo "Permissions Error: update succesfull but cannot delete temp files located at ~/$repositoryName delete this directory with sudo"; exit 1; }
      } else {
        exit 1
      }
    } else {
      echo "$repositoryName is already the latest version"
    }
  }

}


proc usage
{
  echo "Crypt"
  echo "Description: A wrapper around openssl that facilitates encrypting and decrypting files."
  echo "Usage: crypt [flag] [inputFile] [outputFile]"
  echo "  -e Encrypt the inputFile and store it in the outputFile"
  echo "  -d Decrypt the inputFile and store it in the outputFile"
  echo "  -u Update Bash-Snippet Tools"
  echo "  -h Show the help"
  echo "  -v Get the tool version"
  echo "Examples:"
  echo "  crypt -e mySecretFile.txt myEncryptedFile.jpg (change filetype so default program is incorrect)"
  echo "  crypt -d myEncryptedFile.jpg thisIsNowDecrypted.txt (change filetype back so now default program is correct)"
}

checkOpenSSL || exit 1

while getopts "huve:d:" opt { ## alows for using options in bash
  matchstr $opt {
    e { ## when trying to encrypt run this
      if [[ $state != "decrypt" ]]{
        global state := '"encrypt'"
      } else {
        echo "Error: the -d and -e options are mutally exclusive" > !2
        exit 1
      }
      if [[ $# -ne 3 ]] {
        echo "Option -e needs and only accepts two arguments [file to encrypt] [output file]" > !2
        exit 1
      }

    }
    \? {
      echo "Invalid option: -$OPTARG" > !2
      exit 1
    }
    d { ## when trying to decrypt run this
      if [[ $state != "encrypt" ]]{
        global state := '"decrypt'"
      } else {
        echo "Error: the -e and -d options are mutally exclusive" > !2
        exit 1
      }
      if [[ $# -ne 3 ]] {
        echo "Option -d needs and only accepts two arguments [file to decrypt] [output file]" > !2
        exit 1
      }
    }
    u {
      update
      exit 0
    }
    h {
      usage
      exit 0
    }
    v {
      echo "Version $currentVersion"
      exit 0
    }
    : { ## will run when no arguments are provided to to e or d options
      echo "Option -$OPTARG requires an argument." > !2
      exit 1
    }
  }
}

if [[ $# == 0 ]] {
  usage
  exit 0
} elif [[ $1 == "update" ]]{
  update
  exit 0
} elif [[ $1 == "help" ]]{
  usage
  exit 0
} elif [[ $state == "encrypt" ]]{
  encrypt $2 $3 || exit 1
  exit 0
} elif [[ $state == "decrypt" ]]{
  decrypt $2 $3 || exit 1
  exit 0
}
(CommandList
  children: [
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:currentVersion) op:Equal rhs:{(DQ (1.11.1))} spids:[7])]
      spids: [7]
    )
    (Assignment
      keyword: Assign_None
      pairs: [(assign_pair lhs:(LhsName name:state) op:Equal rhs:{(DQ )} spids:[12])]
      spids: [12]
    )
    (FuncDef
      name: checkOpenSSL
      body: 
        (BraceGroup
          children: [
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: (Pipeline children:[(C {(command)} {(-v)} {(openssl)})] negated:True)
                      terminator: <Op_Amp "&">
                    )
                    (Sentence
                      child: 
                        (SimpleCommand
                          redirects: [
                            (Redir
                              op_id: Redir_Great
                              fd: -1
                              arg_word: {(/dev/null)}
                              spids: [35]
                            )
                          ]
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (SimpleCommand
                      words: [{(echo)} {(DQ ("Error: to use this tool openssl must be installed"))}]
                      redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[48])]
                    )
                    (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                  ]
                  spids: [-1 39]
                )
              ]
              else_action: [(ControlFlow token:<ControlFlow_Return return> arg_word:{(0)})]
              spids: [57 65]
            )
          ]
          spids: [21]
        )
      spids: [17 20]
    )
    (FuncDef
      name: encrypt
      body: 
        (BraceGroup
          children: [
            (C {(echo)} {(DQ ("Encrypting ") ($ VSub_Number "$1") (...))})
            (AndOr
              children: [
                (C {(openssl)} {(enc)} {(-aes-256-cbc)} {(-salt)} {(-a)} {(-in)} {($ VSub_Number "$1")} 
                  {(-out)} {($ VSub_Number "$2")}
                )
                (BraceGroup
                  children: [
                    (Sentence
                      child: (C {(echo)} {(DQ ("File not found"))})
                      terminator: <Op_Semi ";">
                    )
                    (Sentence
                      child: (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                      terminator: <Op_Semi ";">
                    )
                  ]
                  spids: [108]
                )
              ]
              op_id: Op_DPipe
            )
            (C {(echo)} {(DQ ("Successfully encrypted"))})
          ]
          spids: [76]
        )
      spids: [72 75]
    )
    (FuncDef
      name: decrypt
      body: 
        (BraceGroup
          children: [
            (C {(echo)} {(DQ ("Decrypting ") ($ VSub_Number "$1") (...))})
            (AndOr
              children: [
                (C {(openssl)} {(enc)} {(-aes-256-cbc)} {(-d)} {(-a)} {(-in)} {($ VSub_Number "$1")} {(-out)} 
                  {($ VSub_Number "$2")}
                )
                (BraceGroup
                  children: [
                    (Sentence
                      child: (C {(echo)} {(DQ ("File not found"))})
                      terminator: <Op_Semi ";">
                    )
                    (Sentence
                      child: (ControlFlow token:<ControlFlow_Return return> arg_word:{(1)})
                      terminator: <Op_Semi ";">
                    )
                  ]
                  spids: [173]
                )
              ]
              op_id: Op_DPipe
            )
            (C {(echo)} {(DQ ("Successfully decrypted"))})
          ]
          spids: [141]
        )
      spids: [137 140]
    )
    (FuncDef
      name: update
      body: 
        (BraceGroup
          children: [
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:repositoryName)
                  op: Equal
                  rhs: {(DQ (Bash-Snippets))}
                  spids: [218]
                )
              ]
              spids: [218]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:githubUserName)
                  op: Equal
                  rhs: {(DQ (alexanderepstein))}
                  spids: [227]
                )
              ]
              spids: [227]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:nameOfInstallFile)
                  op: Equal
                  rhs: {(DQ (install.sh))}
                  spids: [236]
                )
              ]
              spids: [236]
            )
            (Assignment
              keyword: Assign_None
              pairs: [
                (assign_pair
                  lhs: (LhsName name:latestVersion)
                  op: Equal
                  rhs: 
                    {
                      (CommandSubPart
                        command_list: 
                          (CommandList
                            children: [
                              (Pipeline
                                children: [
                                  (C {(curl)} {(-s)} 
                                    {(https) (Lit_Other ":") (//api.github.com/repos/) 
                                      ($ VSub_Name "$githubUserName") (/) ($ VSub_Name "$repositoryName") (/tags)
                                    }
                                  )
                                  (C {(grep)} {(-Eo)} {(SQ <"\"name\":.*?[^\\\\]\",">)})
                                  (C {(head)} {(-1)})
                                  (C {(grep)} {(-Eo)} {(DQ ("[0-9.]+"))})
                                ]
                                negated: False
                              )
                            ]
                          )
                        left_token: <Left_CommandSub "$(">
                        spids: [246 284]
                      )
                    }
                  spids: [245]
                )
              ]
              spids: [245]
            )
            (If
              arms: [
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (LogicalOr
                              left: 
                                (BoolBinary
                                  op_id: BoolBinary_GlobDEqual
                                  left: {($ VSub_Name "$currentVersion")}
                                  right: {(DQ )}
                                )
                              right: 
                                (LogicalOr
                                  left: 
                                    (BoolBinary
                                      op_id: BoolBinary_GlobDEqual
                                      left: {($ VSub_Name "$repositoryName")}
                                      right: {(DQ )}
                                    )
                                  right: 
                                    (LogicalOr
                                      left: 
                                        (BoolBinary
                                          op_id: BoolBinary_GlobDEqual
                                          left: {($ VSub_Name "$githubUserName")}
                                          right: {(DQ )}
                                        )
                                      right: 
                                        (BoolBinary
                                          op_id: BoolBinary_GlobDEqual
                                          left: {($ VSub_Name "$nameOfInstallFile")}
                                          right: {(DQ )}
                                        )
                                    )
                                )
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (SimpleCommand
                      words: [
                        {(echo)}
                        {(DQ ("Error: update utility has not been configured correctly."))}
                      ]
                      redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[340])]
                    )
                    (C {(exit)} {(1)})
                  ]
                  spids: [-1 331]
                )
                (if_arm
                  cond: [
                    (Sentence
                      child: 
                        (DBracket
                          expr: 
                            (BoolBinary
                              op_id: BoolBinary_GlobDEqual
                              left: {($ VSub_Name "$latestVersion")}
                              right: {(DQ )}
                            )
                        )
                      terminator: <Op_Semi ";">
                    )
                  ]
                  action: [
                    (SimpleCommand
                      words: [{(echo)} {(DQ ("Error: no active internet connection"))}]
                      redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[371])]
                    )
                    (C {(exit)} {(1)})
                  ]
                  spids: [349 362]
                )
              ]
              else_action: [
                (If
                  arms: [
                    (if_arm
                      cond: [
                        (Sentence
                          child: 
                            (DBracket
                              expr: 
                                (BoolBinary
                                  op_id: BoolBinary_GlobNEqual
                                  left: {(DQ ($ VSub_Name "$latestVersion"))}
                                  right: {(DQ ($ VSub_Name "$currentVersion"))}
                                )
                            )
                          terminator: <Op_Semi ";">
                        )
                      ]
                      action: [
                        (C {(echo)} {(DQ ("Version ") ($ VSub_Name "$latestVersion") (" available"))})
                        (C {(echo)} {(-n)} 
                          {
                            (DQ ("Do you wish to update ") ($ VSub_Name "$repositoryName") (" [Y/n]: "))
                          }
                        )
                        (C {(read)} {(-r)} {(answer)})
                        (If
                          arms: [
                            (if_arm
                              cond: [
                                (Sentence
                                  child: 
                                    (DBracket
                                      expr: 
                                        (LogicalOr
                                          left: 
                                            (BoolBinary
                                              op_id: BoolBinary_GlobDEqual
                                              left: {(DQ ($ VSub_Name "$answer"))}
                                              right: {(DQ (Y))}
                                            )
                                          right: 
                                            (BoolBinary
                                              op_id: BoolBinary_GlobDEqual
                                              left: {(DQ ($ VSub_Name "$answer"))}
                                              right: {(DQ (y))}
                                            )
                                        )
                                    )
                                  terminator: <Op_Semi ";">
                                )
                              ]
                              action: [
                                (AndOr
                                  children: [
                                    (C {(cd)} {(TildeSubPart prefix:"")})
                                    (BraceGroup
                                      children: [
                                        (Sentence
                                          child: (C {(echo)} {(SQ <"Update Failed">)})
                                          terminator: <Op_Semi ";">
                                        )
                                        (Sentence
                                          child: (C {(exit)} {(1)})
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      spids: [468]
                                    )
                                  ]
                                  op_id: Op_DPipe
                                )
                                (If
                                  arms: [
                                    (if_arm
                                      cond: [
                                        (Sentence
                                          child: 
                                            (DBracket
                                              expr: 
                                                (BoolUnary
                                                  op_id: BoolUnary_d
                                                  child: 
                                                    {(Lit_Tilde "~") (/) 
                                                      ($ VSub_Name "$repositoryName")
                                                    }
                                                )
                                            )
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      action: [
                                        (Sentence
                                          child: 
                                            (AndOr
                                              children: [
                                                (C {(rm)} {(-r)} {(-f)} {($ VSub_Name "$repositoryName")})
                                                (BraceGroup
                                                  children: [
                                                    (Sentence
                                                      child: 
                                                        (C {(echo)} 
                                                          {
                                                            (DQ 
                                                              (
"Permissions Error: try running the update as sudo"
                                                              )
                                                            )
                                                          }
                                                        )
                                                      terminator: <Op_Semi ";">
                                                    )
                                                    (Sentence
                                                      child: (C {(exit)} {(1)})
                                                      terminator: <Op_Semi ";">
                                                    )
                                                  ]
                                                  spids: [512]
                                                )
                                              ]
                                              op_id: Op_DPipe
                                            )
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      spids: [-1 500]
                                    )
                                  ]
                                  spids: [-1 530]
                                )
                                (AndOr
                                  children: [
                                    (C {(git)} {(clone)} 
                                      {
                                        (DQ ("https://github.com/") ($ VSub_Name "$githubUserName") (/) 
                                          ($ VSub_Name "$repositoryName")
                                        )
                                      }
                                    )
                                    (BraceGroup
                                      children: [
                                        (Sentence
                                          child: 
                                            (C {(echo)} {(DQ ("Couldn't download latest version"))})
                                          terminator: <Op_Semi ";">
                                        )
                                        (Sentence
                                          child: (C {(exit)} {(1)})
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      spids: [546]
                                    )
                                  ]
                                  op_id: Op_DPipe
                                )
                                (AndOr
                                  children: [
                                    (C {(cd)} {($ VSub_Name "$repositoryName")})
                                    (BraceGroup
                                      children: [
                                        (Sentence
                                          child: (C {(echo)} {(SQ <"Update Failed">)})
                                          terminator: <Op_Semi ";">
                                        )
                                        (Sentence
                                          child: (C {(exit)} {(1)})
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      spids: [570]
                                    )
                                  ]
                                  op_id: Op_DPipe
                                )
                                (AndOr
                                  children: [
                                    (SimpleCommand
                                      words: [
                                        {(git)}
                                        {(checkout)}
                                        {(DQ (v) ($ VSub_Name "$latestVersion"))}
                                      ]
                                      redirects: [
                                        (Redir
                                          op_id: Redir_Great
                                          fd: 2
                                          arg_word: {(/dev/null)}
                                          spids: [597]
                                        )
                                      ]
                                    )
                                    (AndOr
                                      children: [
                                        (SimpleCommand
                                          words: [
                                            {(git)}
                                            {(checkout)}
                                            {(DQ ($ VSub_Name "$latestVersion"))}
                                          ]
                                          redirects: [
                                            (Redir
                                              op_id: Redir_Great
                                              fd: 2
                                              arg_word: {(/dev/null)}
                                              spids: [611]
                                            )
                                          ]
                                        )
                                        (C {(echo)} 
                                          {
                                            (DQ 
                                              (
"Couldn't git checkout to stable release, updating to latest commit."
                                              )
                                            )
                                          }
                                        )
                                      ]
                                      op_id: Op_DPipe
                                    )
                                  ]
                                  op_id: Op_DPipe
                                )
                                (C {(chmod)} {(a) (Lit_Other "+") (x)} {(install.sh)})
                                (AndOr
                                  children: [
                                    (C {(./) ($ VSub_Name "$nameOfInstallFile")} {(DQ (update))})
                                    (C {(exit)} {(1)})
                                  ]
                                  op_id: Op_DPipe
                                )
                                (C {(cd)} {(..)})
                                (AndOr
                                  children: [
                                    (C {(rm)} {(-r)} {(-f)} {($ VSub_Name "$repositoryName")})
                                    (BraceGroup
                                      children: [
                                        (Sentence
                                          child: 
                                            (C {(echo)} 
                                              {
                                                (DQ 
                                                  (
"Permissions Error: update succesfull but cannot delete temp files located at ~/"
                                                  ) ($ VSub_Name "$repositoryName") (" delete this directory with sudo")
                                                )
                                              }
                                            )
                                          terminator: <Op_Semi ";">
                                        )
                                        (Sentence
                                          child: (C {(exit)} {(1)})
                                          terminator: <Op_Semi ";">
                                        )
                                      ]
                                      spids: [665]
                                    )
                                  ]
                                  op_id: Op_DPipe
                                )
                              ]
                              spids: [-1 459]
                            )
                          ]
                          else_action: [(C {(exit)} {(1)})]
                          spids: [684 692]
                        )
                      ]
                      spids: [-1 400]
                    )
                  ]
                  else_action: [
                    (C {(echo)} 
                      {(DQ ($ VSub_Name "$repositoryName") (" is already the latest version"))}
                    )
                  ]
                  spids: [695 706]
                )
              ]
              spids: [380 709]
            )
          ]
          spids: [203]
        )
      spids: [199 202]
    )
    (FuncDef
      name: usage
      body: 
        (BraceGroup
          children: [
            (C {(echo)} {(DQ (Crypt))})
            (C {(echo)} 
              {
                (DQ 
                  (
"Description: A wrapper around openssl that facilitates encrypting and decrypting files."
                  )
                )
              }
            )
            (C {(echo)} {(DQ ("Usage: crypt [flag] [inputFile] [outputFile]"))})
            (C {(echo)} {(DQ ("  -e Encrypt the inputFile and store it in the outputFile"))})
            (C {(echo)} {(DQ ("  -d Decrypt the inputFile and store it in the outputFile"))})
            (C {(echo)} {(DQ ("  -u Update Bash-Snippet Tools"))})
            (C {(echo)} {(DQ ("  -h Show the help"))})
            (C {(echo)} {(DQ ("  -v Get the tool version"))})
            (C {(echo)} {(DQ ("Examples:"))})
            (C {(echo)} 
              {
                (DQ 
                  (
"  crypt -e mySecretFile.txt myEncryptedFile.jpg (change filetype so default program is incorrect)"
                  )
                )
              }
            )
            (C {(echo)} 
              {
                (DQ 
                  (
"  crypt -d myEncryptedFile.jpg thisIsNowDecrypted.txt (change filetype back so now default program is correct)"
                  )
                )
              }
            )
          ]
          spids: [720]
        )
      spids: [716 719]
    )
    (AndOr children:[(C {(checkOpenSSL)})(C {(exit)} {(1)})] op_id:Op_DPipe)
    (While
      cond: [(Sentence child:(C {(getopts)} {(DQ ("huve:d:"))} {(opt)}) terminator:<Op_Semi ";">)]
      body: 
        (DoGroup
          children: [
            (Case
              to_match: {($ VSub_Name "$opt")}
              arms: [
                (case_arm
                  pat_list: [{(e)}]
                  action: [
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DBracket
                                  expr: 
                                    (BoolBinary
                                      op_id: BoolBinary_GlobNEqual
                                      left: {($ VSub_Name "$state")}
                                      right: {(DQ (decrypt))}
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:state)
                                  op: Equal
                                  rhs: {(DQ (encrypt))}
                                  spids: [859]
                                )
                              ]
                              spids: [859]
                            )
                          ]
                          spids: [-1 856]
                        )
                      ]
                      else_action: [
                        (SimpleCommand
                          words: [{(echo)} {(DQ ("Error: the -d and -e options are mutally exclusive"))}]
                          redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[874])]
                        )
                        (C {(exit)} {(1)})
                      ]
                      spids: [865 883]
                    )
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DBracket
                                  expr: 
                                    (BoolBinary
                                      op_id: BoolBinary_ne
                                      left: {($ VSub_Pound "$#")}
                                      right: {(3)}
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (SimpleCommand
                              words: [
                                {(echo)}
                                {
                                  (DQ 
                                    (
"Option -e needs and only accepts two arguments [file to encrypt] [output file]"
                                    )
                                  )
                                }
                              ]
                              redirects: [
                                (Redir
                                  op_id: Redir_GreatAnd
                                  fd: -1
                                  arg_word: {(2)}
                                  spids: [908]
                                )
                              ]
                            )
                            (C {(exit)} {(1)})
                          ]
                          spids: [-1 899]
                        )
                      ]
                      spids: [-1 917]
                    )
                  ]
                  spids: [835 836 921 -1]
                )
                (case_arm
                  pat_list: [{(EscapedLiteralPart token:<Lit_EscapedChar "\\?">)}]
                  action: [
                    (SimpleCommand
                      words: [{(echo)} {(DQ ("Invalid option: -") ($ VSub_Name "$OPTARG"))}]
                      redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[935])]
                    )
                    (C {(exit)} {(1)})
                  ]
                  spids: [924 925 944 -1]
                )
                (case_arm
                  pat_list: [{(d)}]
                  action: [
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DBracket
                                  expr: 
                                    (BoolBinary
                                      op_id: BoolBinary_GlobNEqual
                                      left: {($ VSub_Name "$state")}
                                      right: {(DQ (encrypt))}
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (Assignment
                              keyword: Assign_None
                              pairs: [
                                (assign_pair
                                  lhs: (LhsName name:state)
                                  op: Equal
                                  rhs: {(DQ (decrypt))}
                                  spids: [971]
                                )
                              ]
                              spids: [971]
                            )
                          ]
                          spids: [-1 968]
                        )
                      ]
                      else_action: [
                        (SimpleCommand
                          words: [{(echo)} {(DQ ("Error: the -e and -d options are mutally exclusive"))}]
                          redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[986])]
                        )
                        (C {(exit)} {(1)})
                      ]
                      spids: [977 995]
                    )
                    (If
                      arms: [
                        (if_arm
                          cond: [
                            (Sentence
                              child: 
                                (DBracket
                                  expr: 
                                    (BoolBinary
                                      op_id: BoolBinary_ne
                                      left: {($ VSub_Pound "$#")}
                                      right: {(3)}
                                    )
                                )
                              terminator: <Op_Semi ";">
                            )
                          ]
                          action: [
                            (SimpleCommand
                              words: [
                                {(echo)}
                                {
                                  (DQ 
                                    (
"Option -d needs and only accepts two arguments [file to decrypt] [output file]"
                                    )
                                  )
                                }
                              ]
                              redirects: [
                                (Redir
                                  op_id: Redir_GreatAnd
                                  fd: -1
                                  arg_word: {(2)}
                                  spids: [1020]
                                )
                              ]
                            )
                            (C {(exit)} {(1)})
                          ]
                          spids: [-1 1011]
                        )
                      ]
                      spids: [-1 1029]
                    )
                  ]
                  spids: [947 948 1032 -1]
                )
                (case_arm
                  pat_list: [{(u)}]
                  action: [(C {(update)}) (C {(exit)} {(0)})]
                  spids: [1035 1036 1047 -1]
                )
                (case_arm
                  pat_list: [{(h)}]
                  action: [(C {(usage)}) (C {(exit)} {(0)})]
                  spids: [1050 1051 1062 -1]
                )
                (case_arm
                  pat_list: [{(v)}]
                  action: [
                    (C {(echo)} {(DQ ("Version ") ($ VSub_Name "$currentVersion"))})
                    (C {(exit)} {(0)})
                  ]
                  spids: [1065 1066 1082 -1]
                )
                (case_arm
                  pat_list: [{(Lit_Other ":")}]
                  action: [
                    (SimpleCommand
                      words: [
                        {(echo)}
                        {(DQ ("Option -") ($ VSub_Name "$OPTARG") (" requires an argument."))}
                      ]
                      redirects: [(Redir op_id:Redir_GreatAnd fd:-1 arg_word:{(2)} spids:[1100])]
                    )
                    (C {(exit)} {(1)})
                  ]
                  spids: [1085 1086 1109 -1]
                )
              ]
              spids: [828 832 1112]
            )
          ]
          spids: [822 1114]
        )
    )
    (If
      arms: [
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: (BoolBinary op_id:BoolBinary_GlobDEqual left:{($ VSub_Pound "$#")} right:{(0)})
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [(C {(usage)}) (C {(exit)} {(0)})]
          spids: [-1 1130]
        )
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (BoolBinary
                      op_id: BoolBinary_GlobDEqual
                      left: {($ VSub_Number "$1")}
                      right: {(DQ (update))}
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [(C {(update)}) (C {(exit)} {(0)})]
          spids: [1140 1154]
        )
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (BoolBinary
                      op_id: BoolBinary_GlobDEqual
                      left: {($ VSub_Number "$1")}
                      right: {(DQ (help))}
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [(C {(usage)}) (C {(exit)} {(0)})]
          spids: [1164 1178]
        )
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (BoolBinary
                      op_id: BoolBinary_GlobDEqual
                      left: {($ VSub_Name "$state")}
                      right: {(DQ (encrypt))}
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (AndOr
              children: [
                (C {(encrypt)} {($ VSub_Number "$2")} {($ VSub_Number "$3")})
                (C {(exit)} {(1)})
              ]
              op_id: Op_DPipe
            )
            (C {(exit)} {(0)})
          ]
          spids: [1188 1202]
        )
        (if_arm
          cond: [
            (Sentence
              child: 
                (DBracket
                  expr: 
                    (BoolBinary
                      op_id: BoolBinary_GlobDEqual
                      left: {($ VSub_Name "$state")}
                      right: {(DQ (decrypt))}
                    )
                )
              terminator: <Op_Semi ";">
            )
          ]
          action: [
            (AndOr
              children: [
                (C {(decrypt)} {($ VSub_Number "$2")} {($ VSub_Number "$3")})
                (C {(exit)} {(1)})
              ]
              op_id: Op_DPipe
            )
            (C {(exit)} {(0)})
          ]
          spids: [1222 1236]
        )
      ]
      spids: [-1 1256]
    )
  ]
)