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   1  // CodeMirror, copyright (c) by Marijn Haverbeke and others
   2  // Distributed under an MIT license: https://codemirror.net/5/LICENSE
   3  
   4  (function(mod) {
   5    if (typeof exports == "object" && typeof module == "object") // CommonJS
   6      mod(require("../../lib/codemirror"));
   7    else if (typeof define == "function" && define.amd) // AMD
   8      define(["../../lib/codemirror"], mod);
   9    else // Plain browser env
  10      mod(CodeMirror);
  11  })(function(CodeMirror) {
  12  "use strict";
  13  
  14  CodeMirror.defineMode('shell', function() {
  15  
  16    var words = {};
  17    function define(style, dict) {
  18      for(var i = 0; i < dict.length; i++) {
  19        words[dict[i]] = style;
  20      }
  21    };
  22  
  23    var commonAtoms = ["true", "false"];
  24    var commonKeywords = ["if", "then", "do", "else", "elif", "while", "until", "for", "in", "esac", "fi",
  25      "fin", "fil", "done", "exit", "set", "unset", "export", "function"];
  26    var commonCommands = ["ab", "awk", "bash", "beep", "cat", "cc", "cd", "chown", "chmod", "chroot", "clear",
  27      "cp", "curl", "cut", "diff", "echo", "find", "gawk", "gcc", "get", "git", "grep", "hg", "kill", "killall",
  28      "ln", "ls", "make", "mkdir", "openssl", "mv", "nc", "nl", "node", "npm", "ping", "ps", "restart", "rm",
  29      "rmdir", "sed", "service", "sh", "shopt", "shred", "source", "sort", "sleep", "ssh", "start", "stop",
  30      "su", "sudo", "svn", "tee", "telnet", "top", "touch", "vi", "vim", "wall", "wc", "wget", "who", "write",
  31      "yes", "zsh"];
  32  
  33    CodeMirror.registerHelper("hintWords", "shell", commonAtoms.concat(commonKeywords, commonCommands));
  34  
  35    define('atom', commonAtoms);
  36    define('keyword', commonKeywords);
  37    define('builtin', commonCommands);
  38  
  39    function tokenBase(stream, state) {
  40      if (stream.eatSpace()) return null;
  41  
  42      var sol = stream.sol();
  43      var ch = stream.next();
  44  
  45      if (ch === '\\') {
  46        stream.next();
  47        return null;
  48      }
  49      if (ch === '\'' || ch === '"' || ch === '`') {
  50        state.tokens.unshift(tokenString(ch, ch === "`" ? "quote" : "string"));
  51        return tokenize(stream, state);
  52      }
  53      if (ch === '#') {
  54        if (sol && stream.eat('!')) {
  55          stream.skipToEnd();
  56          return 'meta'; // 'comment'?
  57        }
  58        stream.skipToEnd();
  59        return 'comment';
  60      }
  61      if (ch === '$') {
  62        state.tokens.unshift(tokenDollar);
  63        return tokenize(stream, state);
  64      }
  65      if (ch === '+' || ch === '=') {
  66        return 'operator';
  67      }
  68      if (ch === '-') {
  69        stream.eat('-');
  70        stream.eatWhile(/\w/);
  71        return 'attribute';
  72      }
  73      if (ch == "<") {
  74        if (stream.match("<<")) return "operator"
  75        var heredoc = stream.match(/^<-?\s*['"]?([^'"]*)['"]?/)
  76        if (heredoc) {
  77          state.tokens.unshift(tokenHeredoc(heredoc[1]))
  78          return 'string-2'
  79        }
  80      }
  81      if (/\d/.test(ch)) {
  82        stream.eatWhile(/\d/);
  83        if(stream.eol() || !/\w/.test(stream.peek())) {
  84          return 'number';
  85        }
  86      }
  87      stream.eatWhile(/[\w-]/);
  88      var cur = stream.current();
  89      if (stream.peek() === '=' && /\w+/.test(cur)) return 'def';
  90      return words.hasOwnProperty(cur) ? words[cur] : null;
  91    }
  92  
  93    function tokenString(quote, style) {
  94      var close = quote == "(" ? ")" : quote == "{" ? "}" : quote
  95      return function(stream, state) {
  96        var next, escaped = false;
  97        while ((next = stream.next()) != null) {
  98          if (next === close && !escaped) {
  99            state.tokens.shift();
 100            break;
 101          } else if (next === '$' && !escaped && quote !== "'" && stream.peek() != close) {
 102            escaped = true;
 103            stream.backUp(1);
 104            state.tokens.unshift(tokenDollar);
 105            break;
 106          } else if (!escaped && quote !== close && next === quote) {
 107            state.tokens.unshift(tokenString(quote, style))
 108            return tokenize(stream, state)
 109          } else if (!escaped && /['"]/.test(next) && !/['"]/.test(quote)) {
 110            state.tokens.unshift(tokenStringStart(next, "string"));
 111            stream.backUp(1);
 112            break;
 113          }
 114          escaped = !escaped && next === '\\';
 115        }
 116        return style;
 117      };
 118    };
 119  
 120    function tokenStringStart(quote, style) {
 121      return function(stream, state) {
 122        state.tokens[0] = tokenString(quote, style)
 123        stream.next()
 124        return tokenize(stream, state)
 125      }
 126    }
 127  
 128    var tokenDollar = function(stream, state) {
 129      if (state.tokens.length > 1) stream.eat('$');
 130      var ch = stream.next()
 131      if (/['"({]/.test(ch)) {
 132        state.tokens[0] = tokenString(ch, ch == "(" ? "quote" : ch == "{" ? "def" : "string");
 133        return tokenize(stream, state);
 134      }
 135      if (!/\d/.test(ch)) stream.eatWhile(/\w/);
 136      state.tokens.shift();
 137      return 'def';
 138    };
 139  
 140    function tokenHeredoc(delim) {
 141      return function(stream, state) {
 142        if (stream.sol() && stream.string == delim) state.tokens.shift()
 143        stream.skipToEnd()
 144        return "string-2"
 145      }
 146    }
 147  
 148    function tokenize(stream, state) {
 149      return (state.tokens[0] || tokenBase) (stream, state);
 150    };
 151  
 152    return {
 153      startState: function() {return {tokens:[]};},
 154      token: function(stream, state) {
 155        return tokenize(stream, state);
 156      },
 157      closeBrackets: "()[]{}''\"\"``",
 158      lineComment: '#',
 159      fold: "brace"
 160    };
 161  });
 162  
 163  CodeMirror.defineMIME('text/x-sh', 'shell');
 164  // Apache uses a slightly different Media Type for Shell scripts
 165  // http://svn.apache.org/repos/asf/httpd/httpd/trunk/docs/conf/mime.types
 166  CodeMirror.defineMIME('application/x-sh', 'shell');
 167  
 168  });