package.mode.dart.dart.js Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of codemirror Show documentation
Basic configuration for the CodeMirror code editor
The newest version!
// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: https://codemirror.net/5/LICENSE

(function(mod) {
  if (typeof exports == "object" && typeof module == "object") // CommonJS
    mod(require("../../lib/codemirror"), require("../clike/clike"));
  else if (typeof define == "function" && define.amd) // AMD
    define(["../../lib/codemirror", "../clike/clike"], mod);
  else // Plain browser env
    mod(CodeMirror);
})(function(CodeMirror) {
  "use strict";

  var keywords = ("this super static final const abstract class extends external factory " +
    "implements mixin get native set typedef with enum throw rethrow " +
    "assert break case continue default in return new deferred async await covariant " +
    "try catch finally do else for if switch while import library export " +
    "part of show hide is as extension on yield late required").split(" ");
  var blockKeywords = "try catch finally do else for if switch while".split(" ");
  var atoms = "true false null".split(" ");
  var builtins = "void bool num int double dynamic var String Null Never".split(" ");

  function set(words) {
    var obj = {};
    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
    return obj;
  }

  function pushInterpolationStack(state) {
    (state.interpolationStack || (state.interpolationStack = [])).push(state.tokenize);
  }

  function popInterpolationStack(state) {
    return (state.interpolationStack || (state.interpolationStack = [])).pop();
  }

  function sizeInterpolationStack(state) {
    return state.interpolationStack ? state.interpolationStack.length : 0;
  }

  CodeMirror.defineMIME("application/dart", {
    name: "clike",
    keywords: set(keywords),
    blockKeywords: set(blockKeywords),
    builtin: set(builtins),
    atoms: set(atoms),
    hooks: {
      "@": function(stream) {
        stream.eatWhile(/[\w\$_\.]/);
        return "meta";
      },

      // custom string handling to deal with triple-quoted strings and string interpolation
      "'": function(stream, state) {
        return tokenString("'", stream, state, false);
      },
      "\"": function(stream, state) {
        return tokenString("\"", stream, state, false);
      },
      "r": function(stream, state) {
        var peek = stream.peek();
        if (peek == "'" || peek == "\"") {
          return tokenString(stream.next(), stream, state, true);
        }
        return false;
      },

      "}": function(_stream, state) {
        // "}" is end of interpolation, if interpolation stack is non-empty
        if (sizeInterpolationStack(state) > 0) {
          state.tokenize = popInterpolationStack(state);
          return null;
        }
        return false;
      },

      "/": function(stream, state) {
        if (!stream.eat("*")) return false
        state.tokenize = tokenNestedComment(1)
        return state.tokenize(stream, state)
      },
      token: function(stream, _, style) {
        if (style == "variable") {
          // Assume uppercase symbols are classes using variable-2
          var isUpper = RegExp('^[_$]*[A-Z][a-zA-Z0-9_$]*$','g');
          if (isUpper.test(stream.current())) {
            return 'variable-2';
          }
        }
      }
    }
  });

  function tokenString(quote, stream, state, raw) {
    var tripleQuoted = false;
    if (stream.eat(quote)) {
      if (stream.eat(quote)) tripleQuoted = true;
      else return "string"; //empty string
    }
    function tokenStringHelper(stream, state) {
      var escaped = false;
      while (!stream.eol()) {
        if (!raw && !escaped && stream.peek() == "$") {
          pushInterpolationStack(state);
          state.tokenize = tokenInterpolation;
          return "string";
        }
        var next = stream.next();
        if (next == quote && !escaped && (!tripleQuoted || stream.match(quote + quote))) {
          state.tokenize = null;
          break;
        }
        escaped = !raw && !escaped && next == "\\";
      }
      return "string";
    }
    state.tokenize = tokenStringHelper;
    return tokenStringHelper(stream, state);
  }

  function tokenInterpolation(stream, state) {
    stream.eat("$");
    if (stream.eat("{")) {
      // let clike handle the content of ${...},
      // we take over again when "}" appears (see hooks).
      state.tokenize = null;
    } else {
      state.tokenize = tokenInterpolationIdentifier;
    }
    return null;
  }

  function tokenInterpolationIdentifier(stream, state) {
    stream.eatWhile(/[\w_]/);
    state.tokenize = popInterpolationStack(state);
    return "variable";
  }

  function tokenNestedComment(depth) {
    return function (stream, state) {
      var ch
      while (ch = stream.next()) {
        if (ch == "*" && stream.eat("/")) {
          if (depth == 1) {
            state.tokenize = null
            break
          } else {
            state.tokenize = tokenNestedComment(depth - 1)
            return state.tokenize(stream, state)
          }
        } else if (ch == "/" && stream.eat("*")) {
          state.tokenize = tokenNestedComment(depth + 1)
          return state.tokenize(stream, state)
        }
      }
      return "comment"
    }
  }

  CodeMirror.registerHelper("hintWords", "application/dart", keywords.concat(atoms).concat(builtins));

  // This is needed to make loading through meta.js work.
  CodeMirror.defineMode("dart", function(conf) {
    return CodeMirror.getMode(conf, "application/dart");
  }, "clike");
});