made simple strings shortcut
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lib/lexer.js
24
lib/lexer.js
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@ -1,5 +1,5 @@
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(function() {
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var ASSIGNED, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, CONVERSIONS, HEREDOC, HEREDOC_INDENT, IDENTIFIER, JS_FORBIDDEN, JS_KEYWORDS, LINE_BREAK, LOGIC, Lexer, MATH, MULTILINER, MULTI_DENT, NEXT_CHARACTER, NOT_REGEX, NO_NEWLINE, NUMBER, OPERATOR, REGEX_END, REGEX_ESCAPE, REGEX_INTERPOLATION, REGEX_START, RESERVED, Rewriter, SHIFT, UNARY, WHITESPACE, _ref, compact, count, include, starts;
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var ASSIGNED, CALLABLE, CODE, COFFEE_ALIASES, COFFEE_KEYWORDS, COMMENT, COMPARE, COMPOUND_ASSIGN, CONVERSIONS, HEREDOC, HEREDOC_INDENT, IDENTIFIER, JSTOKEN, JS_FORBIDDEN, JS_KEYWORDS, LINE_BREAK, LOGIC, Lexer, MATH, MULTILINER, MULTI_DENT, NEXT_CHARACTER, NOT_REGEX, NO_NEWLINE, NUMBER, OPERATOR, REGEX_END, REGEX_ESCAPE, REGEX_INTERPOLATION, REGEX_START, RESERVED, Rewriter, SHIFT, SIMPLESTR, UNARY, WHITESPACE, _ref, compact, count, include, starts;
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var __slice = Array.prototype.slice;
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_ref = require('./rewriter');
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Rewriter = _ref.Rewriter;
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@ -96,14 +96,23 @@
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return true;
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};
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Lexer.prototype.stringToken = function() {
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var _ref2, string;
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if (!(("'" === (_ref2 = this.chunk.charAt(0)) || '"' === _ref2))) {
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var string;
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switch (this.chunk.charAt(0)) {
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case "'":
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if (!(string = this.match(SIMPLESTR))) {
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return false;
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}
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if (!(string = this.balancedToken(['"', '"'], ['#{', '}']) || this.balancedToken(["'", "'"]))) {
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this.token('STRING', string.replace(MULTILINER, '\\\n'));
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break;
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case '"':
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if (!(string = this.balancedToken(['"', '"'], ['#{', '}']))) {
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return false;
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}
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this.interpolateString(string.replace(MULTILINER, '\\\n'));
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break;
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default:
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return false;
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}
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this.line += count(string, '\n');
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this.i += string.length;
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return true;
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@ -146,10 +155,7 @@
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};
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Lexer.prototype.jsToken = function() {
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var script;
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if (this.chunk.charAt(0) !== '`') {
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return false;
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}
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if (!(script = this.balancedToken(['`', '`']))) {
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if (!(this.chunk.charAt(0) === '`' && (script = this.match(JSTOKEN)))) {
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return false;
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}
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this.token('JS', script.slice(1, -1));
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@ -590,6 +596,8 @@
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COMMENT = /^###([^#][\s\S]*?)(?:###[ \t]*\n|(?:###)?$)|^(?:\s*#(?!##[^#])[^\n]*)+/;
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CODE = /^[-=]>/;
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MULTI_DENT = /^(?:\n[ \t]*)+/;
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SIMPLESTR = /^'[^\\']*(?:\\.[^\\']*)*'/;
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JSTOKEN = /^`[^\\`]*(?:\\.[^\\`]*)*`/;
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REGEX_START = /^\/([^\/])/;
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REGEX_INTERPOLATION = /[^\\]#\{.*[^\\]\}/;
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REGEX_END = /^[imgy]{0,4}(?![a-zA-Z])/;
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@ -118,11 +118,15 @@ exports.Lexer = class Lexer
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# Matches strings, including multi-line strings. Ensures that quotation marks
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# are balanced within the string's contents, and within nested interpolations.
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stringToken: ->
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return false unless @chunk.charAt(0) in ["'", '"']
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return false unless string =
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@balancedToken(['"', '"'], ['#{', '}']) or
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@balancedToken ["'", "'"]
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switch @chunk.charAt 0
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when "'"
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return false unless string = @match SIMPLESTR
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@token 'STRING', string.replace MULTILINER, '\\\n'
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when '"'
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return false unless string = @balancedToken ['"', '"'], ['#{', '}']
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@interpolateString string.replace MULTILINER, '\\\n'
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else
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return false
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@line += count string, '\n'
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@i += string.length
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true
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@ -153,8 +157,7 @@ exports.Lexer = class Lexer
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# Matches JavaScript interpolated directly into the source via backticks.
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jsToken: ->
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return false unless @chunk.charAt(0) is '`'
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return false unless script = @balancedToken ['`', '`']
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return false unless @chunk.charAt(0) is '`' and script = @match JSTOKEN
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@token 'JS', script.slice 1, -1
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@i += script.length
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true
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@ -537,6 +540,8 @@ WHITESPACE = /^[ \t]+/
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COMMENT = /^###([^#][\s\S]*?)(?:###[ \t]*\n|(?:###)?$)|^(?:\s*#(?!##[^#])[^\n]*)+/
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CODE = /^[-=]>/
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MULTI_DENT = /^(?:\n[ \t]*)+/
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SIMPLESTR = /^'[^\\']*(?:\\.[^\\']*)*'/
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JSTOKEN = /^`[^\\`]*(?:\\.[^\\`]*)*`/
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# Regex-matching-regexes.
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REGEX_START = /^\/([^\/])/
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