haml.js
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// CodeMirror, copyright (c) by Marijn Haverbeke and others
// Distributed under an MIT license: http://codemirror.net/LICENSE
(function(mod) {
if (typeof exports == "object" && typeof module == "object") // CommonJS
mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../ruby/ruby"));
else if (typeof define == "function" && define.amd) // AMD
define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../ruby/ruby"], mod);
else // Plain browser env
mod(CodeMirror);
})(function(CodeMirror) {
"use strict";
// full haml mode. This handled embeded ruby and html fragments too
CodeMirror.defineMode("haml", function(config) {
var htmlMode = CodeMirror.getMode(config, {name: "htmlmixed"});
var rubyMode = CodeMirror.getMode(config, "ruby");
function rubyInQuote(endQuote) {
return function(stream, state) {
var ch = stream.peek();
if (ch == endQuote && state.rubyState.tokenize.length == 1) {
// step out of ruby context as it seems to complete processing all the braces
stream.next();
state.tokenize = html;
return "closeAttributeTag";
} else {
return ruby(stream, state);
}
};
}
function ruby(stream, state) {
if (stream.match("-#")) {
stream.skipToEnd();
return "comment";
}
return rubyMode.token(stream, state.rubyState);
}
function html(stream, state) {
var ch = stream.peek();
// handle haml declarations. All declarations that cant be handled here
// will be passed to html mode
if (state.previousToken.style == "comment" ) {
if (state.indented > state.previousToken.indented) {
stream.skipToEnd();
return "commentLine";
}
}
if (state.startOfLine) {
if (ch == "!" && stream.match("!!")) {
stream.skipToEnd();
return "tag";
} else if (stream.match(/^%[\w:#\.]+=/)) {
state.tokenize = ruby;
return "hamlTag";
} else if (stream.match(/^%[\w:]+/)) {
return "hamlTag";
} else if (ch == "/" ) {
stream.skipToEnd();
return "comment";
}
}
if (state.startOfLine || state.previousToken.style == "hamlTag") {
if ( ch == "#" || ch == ".") {
stream.match(/[\w-#\.]*/);
return "hamlAttribute";
}
}
// donot handle --> as valid ruby, make it HTML close comment instead
if (state.startOfLine && !stream.match("-->", false) && (ch == "=" || ch == "-" )) {
state.tokenize = ruby;
return state.tokenize(stream, state);
}
if (state.previousToken.style == "hamlTag" ||
state.previousToken.style == "closeAttributeTag" ||
state.previousToken.style == "hamlAttribute") {
if (ch == "(") {
state.tokenize = rubyInQuote(")");
return state.tokenize(stream, state);
} else if (ch == "{") {
state.tokenize = rubyInQuote("}");
return state.tokenize(stream, state);
}
}
return htmlMode.token(stream, state.htmlState);
}
return {
// default to html mode
startState: function() {
var htmlState = htmlMode.startState();
var rubyState = rubyMode.startState();
return {
htmlState: htmlState,
rubyState: rubyState,
indented: 0,
previousToken: { style: null, indented: 0},
tokenize: html
};
},
copyState: function(state) {
return {
htmlState : CodeMirror.copyState(htmlMode, state.htmlState),
rubyState: CodeMirror.copyState(rubyMode, state.rubyState),
indented: state.indented,
previousToken: state.previousToken,
tokenize: state.tokenize
};
},
token: function(stream, state) {
if (stream.sol()) {
state.indented = stream.indentation();
state.startOfLine = true;
}
if (stream.eatSpace()) return null;
var style = state.tokenize(stream, state);
state.startOfLine = false;
// dont record comment line as we only want to measure comment line with
// the opening comment block
if (style && style != "commentLine") {
state.previousToken = { style: style, indented: state.indented };
}
// if current state is ruby and the previous token is not `,` reset the
// tokenize to html
if (stream.eol() && state.tokenize == ruby) {
stream.backUp(1);
var ch = stream.peek();
stream.next();
if (ch && ch != ",") {
state.tokenize = html;
}
}
// reprocess some of the specific style tag when finish setting previousToken
if (style == "hamlTag") {
style = "tag";
} else if (style == "commentLine") {
style = "comment";
} else if (style == "hamlAttribute") {
style = "attribute";
} else if (style == "closeAttributeTag") {
style = null;
}
return style;
}
};
}, "htmlmixed", "ruby");
CodeMirror.defineMIME("text/x-haml", "haml");
});