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sass.js
414 lines
| 9.8 KiB
| application/javascript
|
JavascriptLexer
r1 | // 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")); | ||||
else if (typeof define == "function" && define.amd) // AMD | ||||
define(["../../lib/codemirror"], mod); | ||||
else // Plain browser env | ||||
mod(CodeMirror); | ||||
})(function(CodeMirror) { | ||||
"use strict"; | ||||
CodeMirror.defineMode("sass", function(config) { | ||||
function tokenRegexp(words) { | ||||
return new RegExp("^" + words.join("|")); | ||||
} | ||||
var keywords = ["true", "false", "null", "auto"]; | ||||
var keywordsRegexp = new RegExp("^" + keywords.join("|")); | ||||
var operators = ["\\(", "\\)", "=", ">", "<", "==", ">=", "<=", "\\+", "-", | ||||
"\\!=", "/", "\\*", "%", "and", "or", "not", ";","\\{","\\}",":"]; | ||||
var opRegexp = tokenRegexp(operators); | ||||
var pseudoElementsRegexp = /^::?[a-zA-Z_][\w\-]*/; | ||||
function urlTokens(stream, state) { | ||||
var ch = stream.peek(); | ||||
if (ch === ")") { | ||||
stream.next(); | ||||
state.tokenizer = tokenBase; | ||||
return "operator"; | ||||
} else if (ch === "(") { | ||||
stream.next(); | ||||
stream.eatSpace(); | ||||
return "operator"; | ||||
} else if (ch === "'" || ch === '"') { | ||||
state.tokenizer = buildStringTokenizer(stream.next()); | ||||
return "string"; | ||||
} else { | ||||
state.tokenizer = buildStringTokenizer(")", false); | ||||
return "string"; | ||||
} | ||||
} | ||||
function comment(indentation, multiLine) { | ||||
return function(stream, state) { | ||||
if (stream.sol() && stream.indentation() <= indentation) { | ||||
state.tokenizer = tokenBase; | ||||
return tokenBase(stream, state); | ||||
} | ||||
if (multiLine && stream.skipTo("*/")) { | ||||
stream.next(); | ||||
stream.next(); | ||||
state.tokenizer = tokenBase; | ||||
} else { | ||||
stream.skipToEnd(); | ||||
} | ||||
return "comment"; | ||||
}; | ||||
} | ||||
function buildStringTokenizer(quote, greedy) { | ||||
if (greedy == null) { greedy = true; } | ||||
function stringTokenizer(stream, state) { | ||||
var nextChar = stream.next(); | ||||
var peekChar = stream.peek(); | ||||
var previousChar = stream.string.charAt(stream.pos-2); | ||||
var endingString = ((nextChar !== "\\" && peekChar === quote) || (nextChar === quote && previousChar !== "\\")); | ||||
if (endingString) { | ||||
if (nextChar !== quote && greedy) { stream.next(); } | ||||
state.tokenizer = tokenBase; | ||||
return "string"; | ||||
} else if (nextChar === "#" && peekChar === "{") { | ||||
state.tokenizer = buildInterpolationTokenizer(stringTokenizer); | ||||
stream.next(); | ||||
return "operator"; | ||||
} else { | ||||
return "string"; | ||||
} | ||||
} | ||||
return stringTokenizer; | ||||
} | ||||
function buildInterpolationTokenizer(currentTokenizer) { | ||||
return function(stream, state) { | ||||
if (stream.peek() === "}") { | ||||
stream.next(); | ||||
state.tokenizer = currentTokenizer; | ||||
return "operator"; | ||||
} else { | ||||
return tokenBase(stream, state); | ||||
} | ||||
}; | ||||
} | ||||
function indent(state) { | ||||
if (state.indentCount == 0) { | ||||
state.indentCount++; | ||||
var lastScopeOffset = state.scopes[0].offset; | ||||
var currentOffset = lastScopeOffset + config.indentUnit; | ||||
state.scopes.unshift({ offset:currentOffset }); | ||||
} | ||||
} | ||||
function dedent(state) { | ||||
if (state.scopes.length == 1) return; | ||||
state.scopes.shift(); | ||||
} | ||||
function tokenBase(stream, state) { | ||||
var ch = stream.peek(); | ||||
// Comment | ||||
if (stream.match("/*")) { | ||||
state.tokenizer = comment(stream.indentation(), true); | ||||
return state.tokenizer(stream, state); | ||||
} | ||||
if (stream.match("//")) { | ||||
state.tokenizer = comment(stream.indentation(), false); | ||||
return state.tokenizer(stream, state); | ||||
} | ||||
// Interpolation | ||||
if (stream.match("#{")) { | ||||
state.tokenizer = buildInterpolationTokenizer(tokenBase); | ||||
return "operator"; | ||||
} | ||||
// Strings | ||||
if (ch === '"' || ch === "'") { | ||||
stream.next(); | ||||
state.tokenizer = buildStringTokenizer(ch); | ||||
return "string"; | ||||
} | ||||
if(!state.cursorHalf){// state.cursorHalf === 0 | ||||
// first half i.e. before : for key-value pairs | ||||
// including selectors | ||||
if (ch === ".") { | ||||
stream.next(); | ||||
if (stream.match(/^[\w-]+/)) { | ||||
indent(state); | ||||
return "atom"; | ||||
} else if (stream.peek() === "#") { | ||||
indent(state); | ||||
return "atom"; | ||||
} | ||||
} | ||||
if (ch === "#") { | ||||
stream.next(); | ||||
// ID selectors | ||||
if (stream.match(/^[\w-]+/)) { | ||||
indent(state); | ||||
return "atom"; | ||||
} | ||||
if (stream.peek() === "#") { | ||||
indent(state); | ||||
return "atom"; | ||||
} | ||||
} | ||||
// Variables | ||||
if (ch === "$") { | ||||
stream.next(); | ||||
stream.eatWhile(/[\w-]/); | ||||
return "variable-2"; | ||||
} | ||||
// Numbers | ||||
if (stream.match(/^-?[0-9\.]+/)) | ||||
return "number"; | ||||
// Units | ||||
if (stream.match(/^(px|em|in)\b/)) | ||||
return "unit"; | ||||
if (stream.match(keywordsRegexp)) | ||||
return "keyword"; | ||||
if (stream.match(/^url/) && stream.peek() === "(") { | ||||
state.tokenizer = urlTokens; | ||||
return "atom"; | ||||
} | ||||
if (ch === "=") { | ||||
// Match shortcut mixin definition | ||||
if (stream.match(/^=[\w-]+/)) { | ||||
indent(state); | ||||
return "meta"; | ||||
} | ||||
} | ||||
if (ch === "+") { | ||||
// Match shortcut mixin definition | ||||
if (stream.match(/^\+[\w-]+/)){ | ||||
return "variable-3"; | ||||
} | ||||
} | ||||
if(ch === "@"){ | ||||
if(stream.match(/@extend/)){ | ||||
if(!stream.match(/\s*[\w]/)) | ||||
dedent(state); | ||||
} | ||||
} | ||||
// Indent Directives | ||||
if (stream.match(/^@(else if|if|media|else|for|each|while|mixin|function)/)) { | ||||
indent(state); | ||||
return "meta"; | ||||
} | ||||
// Other Directives | ||||
if (ch === "@") { | ||||
stream.next(); | ||||
stream.eatWhile(/[\w-]/); | ||||
return "meta"; | ||||
} | ||||
if (stream.eatWhile(/[\w-]/)){ | ||||
if(stream.match(/ *: *[\w-\+\$#!\("']/,false)){ | ||||
return "property"; | ||||
} | ||||
else if(stream.match(/ *:/,false)){ | ||||
indent(state); | ||||
state.cursorHalf = 1; | ||||
return "atom"; | ||||
} | ||||
else if(stream.match(/ *,/,false)){ | ||||
return "atom"; | ||||
} | ||||
else{ | ||||
indent(state); | ||||
return "atom"; | ||||
} | ||||
} | ||||
if(ch === ":"){ | ||||
if (stream.match(pseudoElementsRegexp)){ // could be a pseudo-element | ||||
return "keyword"; | ||||
} | ||||
stream.next(); | ||||
state.cursorHalf=1; | ||||
return "operator"; | ||||
} | ||||
} // cursorHalf===0 ends here | ||||
else{ | ||||
if (ch === "#") { | ||||
stream.next(); | ||||
// Hex numbers | ||||
if (stream.match(/[0-9a-fA-F]{6}|[0-9a-fA-F]{3}/)){ | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "number"; | ||||
} | ||||
} | ||||
// Numbers | ||||
if (stream.match(/^-?[0-9\.]+/)){ | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "number"; | ||||
} | ||||
// Units | ||||
if (stream.match(/^(px|em|in)\b/)){ | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "unit"; | ||||
} | ||||
if (stream.match(keywordsRegexp)){ | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "keyword"; | ||||
} | ||||
if (stream.match(/^url/) && stream.peek() === "(") { | ||||
state.tokenizer = urlTokens; | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "atom"; | ||||
} | ||||
// Variables | ||||
if (ch === "$") { | ||||
stream.next(); | ||||
stream.eatWhile(/[\w-]/); | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "variable-3"; | ||||
} | ||||
// bang character for !important, !default, etc. | ||||
if (ch === "!") { | ||||
stream.next(); | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return stream.match(/^[\w]+/) ? "keyword": "operator"; | ||||
} | ||||
if (stream.match(opRegexp)){ | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "operator"; | ||||
} | ||||
// attributes | ||||
if (stream.eatWhile(/[\w-]/)) { | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
} | ||||
return "attribute"; | ||||
} | ||||
//stream.eatSpace(); | ||||
if(!stream.peek()){ | ||||
state.cursorHalf = 0; | ||||
return null; | ||||
} | ||||
} // else ends here | ||||
if (stream.match(opRegexp)) | ||||
return "operator"; | ||||
// If we haven't returned by now, we move 1 character | ||||
// and return an error | ||||
stream.next(); | ||||
return null; | ||||
} | ||||
function tokenLexer(stream, state) { | ||||
if (stream.sol()) state.indentCount = 0; | ||||
var style = state.tokenizer(stream, state); | ||||
var current = stream.current(); | ||||
if (current === "@return" || current === "}"){ | ||||
dedent(state); | ||||
} | ||||
if (style !== null) { | ||||
var startOfToken = stream.pos - current.length; | ||||
var withCurrentIndent = startOfToken + (config.indentUnit * state.indentCount); | ||||
var newScopes = []; | ||||
for (var i = 0; i < state.scopes.length; i++) { | ||||
var scope = state.scopes[i]; | ||||
if (scope.offset <= withCurrentIndent) | ||||
newScopes.push(scope); | ||||
} | ||||
state.scopes = newScopes; | ||||
} | ||||
return style; | ||||
} | ||||
return { | ||||
startState: function() { | ||||
return { | ||||
tokenizer: tokenBase, | ||||
scopes: [{offset: 0, type: "sass"}], | ||||
indentCount: 0, | ||||
cursorHalf: 0, // cursor half tells us if cursor lies after (1) | ||||
// or before (0) colon (well... more or less) | ||||
definedVars: [], | ||||
definedMixins: [] | ||||
}; | ||||
}, | ||||
token: function(stream, state) { | ||||
var style = tokenLexer(stream, state); | ||||
state.lastToken = { style: style, content: stream.current() }; | ||||
return style; | ||||
}, | ||||
indent: function(state) { | ||||
return state.scopes[0].offset; | ||||
} | ||||
}; | ||||
}); | ||||
CodeMirror.defineMIME("text/x-sass", "sass"); | ||||
}); | ||||