mirror of
https://codeberg.org/tacerus/teddit.git
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1706 lines
43 KiB
JavaScript
1706 lines
43 KiB
JavaScript
'use strict';
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var assert = require('assert');
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var isExpression = require('is-expression');
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var characterParser = require('character-parser');
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var error = require('pug-error');
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module.exports = lex;
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module.exports.Lexer = Lexer;
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function lex(str, options) {
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var lexer = new Lexer(str, options);
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return JSON.parse(JSON.stringify(lexer.getTokens()));
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}
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/**
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* Initialize `Lexer` with the given `str`.
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*
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* @param {String} str
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* @param {String} filename
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* @api private
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*/
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function Lexer(str, options) {
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options = options || {};
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if (typeof str !== 'string') {
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throw new Error(
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'Expected source code to be a string but got "' + typeof str + '"'
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);
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}
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if (typeof options !== 'object') {
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throw new Error(
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'Expected "options" to be an object but got "' + typeof options + '"'
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);
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}
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//Strip any UTF-8 BOM off of the start of `str`, if it exists.
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str = str.replace(/^\uFEFF/, '');
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this.input = str.replace(/\r\n|\r/g, '\n');
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this.originalInput = this.input;
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this.filename = options.filename;
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this.interpolated = options.interpolated || false;
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this.lineno = options.startingLine || 1;
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this.colno = options.startingColumn || 1;
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this.plugins = options.plugins || [];
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this.indentStack = [0];
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this.indentRe = null;
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// If #{}, !{} or #[] syntax is allowed when adding text
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this.interpolationAllowed = true;
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this.whitespaceRe = /[ \n\t]/;
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this.tokens = [];
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this.ended = false;
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}
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/**
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* Lexer prototype.
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*/
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Lexer.prototype = {
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constructor: Lexer,
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error: function(code, message) {
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var err = error(code, message, {
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line: this.lineno,
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column: this.colno,
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filename: this.filename,
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src: this.originalInput,
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});
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throw err;
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},
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assert: function(value, message) {
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if (!value) this.error('ASSERT_FAILED', message);
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},
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isExpression: function(exp) {
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return isExpression(exp, {
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throw: true,
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});
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},
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assertExpression: function(exp, noThrow) {
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//this verifies that a JavaScript expression is valid
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try {
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this.callLexerFunction('isExpression', exp);
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return true;
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} catch (ex) {
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if (noThrow) return false;
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// not coming from acorn
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if (!ex.loc) throw ex;
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this.incrementLine(ex.loc.line - 1);
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this.incrementColumn(ex.loc.column);
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var msg =
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'Syntax Error: ' + ex.message.replace(/ \([0-9]+:[0-9]+\)$/, '');
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this.error('SYNTAX_ERROR', msg);
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}
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},
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assertNestingCorrect: function(exp) {
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//this verifies that code is properly nested, but allows
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//invalid JavaScript such as the contents of `attributes`
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var res = characterParser(exp);
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if (res.isNesting()) {
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this.error(
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'INCORRECT_NESTING',
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'Nesting must match on expression `' + exp + '`'
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);
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}
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},
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/**
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* Construct a token with the given `type` and `val`.
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*
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* @param {String} type
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* @param {String} val
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* @return {Object}
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* @api private
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*/
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tok: function(type, val) {
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var res = {
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type: type,
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loc: {
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start: {
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line: this.lineno,
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column: this.colno,
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},
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filename: this.filename,
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},
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};
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if (val !== undefined) res.val = val;
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return res;
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},
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/**
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* Set the token's `loc.end` value.
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*
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* @param {Object} tok
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* @returns {Object}
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* @api private
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*/
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tokEnd: function(tok) {
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tok.loc.end = {
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line: this.lineno,
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column: this.colno,
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};
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return tok;
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},
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/**
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* Increment `this.lineno` and reset `this.colno`.
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*
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* @param {Number} increment
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* @api private
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*/
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incrementLine: function(increment) {
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this.lineno += increment;
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if (increment) this.colno = 1;
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},
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/**
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* Increment `this.colno`.
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*
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* @param {Number} increment
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* @api private
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*/
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incrementColumn: function(increment) {
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this.colno += increment;
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},
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/**
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* Consume the given `len` of input.
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*
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* @param {Number} len
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* @api private
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*/
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consume: function(len) {
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this.input = this.input.substr(len);
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},
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/**
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* Scan for `type` with the given `regexp`.
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*
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* @param {String} type
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* @param {RegExp} regexp
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* @return {Object}
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* @api private
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*/
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scan: function(regexp, type) {
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var captures;
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if ((captures = regexp.exec(this.input))) {
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var len = captures[0].length;
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var val = captures[1];
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var diff = len - (val ? val.length : 0);
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var tok = this.tok(type, val);
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this.consume(len);
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this.incrementColumn(diff);
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return tok;
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}
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},
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scanEndOfLine: function(regexp, type) {
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var captures;
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if ((captures = regexp.exec(this.input))) {
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var whitespaceLength = 0;
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var whitespace;
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var tok;
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if ((whitespace = /^([ ]+)([^ ]*)/.exec(captures[0]))) {
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whitespaceLength = whitespace[1].length;
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this.incrementColumn(whitespaceLength);
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}
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var newInput = this.input.substr(captures[0].length);
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if (newInput[0] === ':') {
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this.input = newInput;
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tok = this.tok(type, captures[1]);
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this.incrementColumn(captures[0].length - whitespaceLength);
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return tok;
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}
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if (/^[ \t]*(\n|$)/.test(newInput)) {
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this.input = newInput.substr(/^[ \t]*/.exec(newInput)[0].length);
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tok = this.tok(type, captures[1]);
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this.incrementColumn(captures[0].length - whitespaceLength);
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return tok;
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}
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}
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},
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/**
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* Return the indexOf `(` or `{` or `[` / `)` or `}` or `]` delimiters.
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*
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* Make sure that when calling this function, colno is at the character
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* immediately before the beginning.
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*
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* @return {Number}
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* @api private
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*/
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bracketExpression: function(skip) {
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skip = skip || 0;
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var start = this.input[skip];
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assert(
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start === '(' || start === '{' || start === '[',
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'The start character should be "(", "{" or "["'
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);
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var end = characterParser.BRACKETS[start];
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var range;
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try {
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range = characterParser.parseUntil(this.input, end, {start: skip + 1});
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} catch (ex) {
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if (ex.index !== undefined) {
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var idx = ex.index;
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// starting from this.input[skip]
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var tmp = this.input.substr(skip).indexOf('\n');
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// starting from this.input[0]
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var nextNewline = tmp + skip;
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var ptr = 0;
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while (idx > nextNewline && tmp !== -1) {
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this.incrementLine(1);
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idx -= nextNewline + 1;
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ptr += nextNewline + 1;
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tmp = nextNewline = this.input.substr(ptr).indexOf('\n');
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}
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this.incrementColumn(idx);
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}
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if (ex.code === 'CHARACTER_PARSER:END_OF_STRING_REACHED') {
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this.error(
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'NO_END_BRACKET',
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'The end of the string reached with no closing bracket ' +
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end +
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' found.'
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);
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} else if (ex.code === 'CHARACTER_PARSER:MISMATCHED_BRACKET') {
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this.error('BRACKET_MISMATCH', ex.message);
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}
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throw ex;
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}
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return range;
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},
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scanIndentation: function() {
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var captures, re;
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// established regexp
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if (this.indentRe) {
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captures = this.indentRe.exec(this.input);
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// determine regexp
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} else {
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// tabs
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re = /^\n(\t*) */;
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captures = re.exec(this.input);
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// spaces
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if (captures && !captures[1].length) {
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re = /^\n( *)/;
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captures = re.exec(this.input);
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}
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// established
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if (captures && captures[1].length) this.indentRe = re;
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}
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return captures;
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},
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/**
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* end-of-source.
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*/
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eos: function() {
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if (this.input.length) return;
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if (this.interpolated) {
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this.error(
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'NO_END_BRACKET',
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'End of line was reached with no closing bracket for interpolation.'
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);
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}
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for (var i = 0; this.indentStack[i]; i++) {
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this.tokens.push(this.tokEnd(this.tok('outdent')));
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}
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this.tokens.push(this.tokEnd(this.tok('eos')));
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this.ended = true;
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return true;
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},
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/**
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* Blank line.
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*/
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blank: function() {
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var captures;
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if ((captures = /^\n[ \t]*\n/.exec(this.input))) {
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this.consume(captures[0].length - 1);
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this.incrementLine(1);
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return true;
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}
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},
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/**
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* Comment.
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*/
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comment: function() {
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var captures;
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if ((captures = /^\/\/(-)?([^\n]*)/.exec(this.input))) {
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this.consume(captures[0].length);
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var tok = this.tok('comment', captures[2]);
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tok.buffer = '-' != captures[1];
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this.interpolationAllowed = tok.buffer;
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this.tokens.push(tok);
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this.incrementColumn(captures[0].length);
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this.tokEnd(tok);
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this.callLexerFunction('pipelessText');
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return true;
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}
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},
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/**
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* Interpolated tag.
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*/
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interpolation: function() {
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if (/^#\{/.test(this.input)) {
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var match = this.bracketExpression(1);
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this.consume(match.end + 1);
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var tok = this.tok('interpolation', match.src);
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this.tokens.push(tok);
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this.incrementColumn(2); // '#{'
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this.assertExpression(match.src);
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var splitted = match.src.split('\n');
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var lines = splitted.length - 1;
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this.incrementLine(lines);
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this.incrementColumn(splitted[lines].length + 1); // + 1 → '}'
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this.tokEnd(tok);
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return true;
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}
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},
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/**
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* Tag.
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*/
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tag: function() {
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var captures;
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if ((captures = /^(\w(?:[-:\w]*\w)?)/.exec(this.input))) {
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var tok,
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name = captures[1],
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len = captures[0].length;
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this.consume(len);
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tok = this.tok('tag', name);
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this.tokens.push(tok);
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this.incrementColumn(len);
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this.tokEnd(tok);
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return true;
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}
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},
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/**
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* Filter.
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*/
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filter: function(opts) {
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var tok = this.scan(/^:([\w\-]+)/, 'filter');
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var inInclude = opts && opts.inInclude;
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if (tok) {
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this.tokens.push(tok);
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this.incrementColumn(tok.val.length);
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this.tokEnd(tok);
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this.callLexerFunction('attrs');
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if (!inInclude) {
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this.interpolationAllowed = false;
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this.callLexerFunction('pipelessText');
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}
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return true;
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}
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},
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/**
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* Doctype.
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*/
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doctype: function() {
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var node = this.scanEndOfLine(/^doctype *([^\n]*)/, 'doctype');
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if (node) {
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this.tokens.push(this.tokEnd(node));
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return true;
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}
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},
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/**
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* Id.
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*/
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id: function() {
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var tok = this.scan(/^#([\w-]+)/, 'id');
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if (tok) {
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this.tokens.push(tok);
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this.incrementColumn(tok.val.length);
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this.tokEnd(tok);
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return true;
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}
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if (/^#/.test(this.input)) {
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this.error(
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'INVALID_ID',
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'"' +
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/.[^ \t\(\#\.\:]*/.exec(this.input.substr(1))[0] +
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'" is not a valid ID.'
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);
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}
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},
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/**
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* Class.
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*/
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className: function() {
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var tok = this.scan(/^\.([_a-z0-9\-]*[_a-z][_a-z0-9\-]*)/i, 'class');
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if (tok) {
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this.tokens.push(tok);
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this.incrementColumn(tok.val.length);
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this.tokEnd(tok);
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return true;
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}
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if (/^\.[_a-z0-9\-]+/i.test(this.input)) {
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this.error(
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'INVALID_CLASS_NAME',
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'Class names must contain at least one letter or underscore.'
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);
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}
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if (/^\./.test(this.input)) {
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this.error(
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'INVALID_CLASS_NAME',
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'"' +
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/.[^ \t\(\#\.\:]*/.exec(this.input.substr(1))[0] +
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'" is not a valid class name. Class names can only contain "_", "-", a-z and 0-9, and must contain at least one of "_", or a-z'
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);
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}
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},
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/**
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* Text.
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*/
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endInterpolation: function() {
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if (this.interpolated && this.input[0] === ']') {
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this.input = this.input.substr(1);
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this.ended = true;
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return true;
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}
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},
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addText: function(type, value, prefix, escaped) {
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var tok;
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if (value + prefix === '') return;
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prefix = prefix || '';
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escaped = escaped || 0;
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var indexOfEnd = this.interpolated ? value.indexOf(']') : -1;
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var indexOfStart = this.interpolationAllowed ? value.indexOf('#[') : -1;
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var indexOfEscaped = this.interpolationAllowed ? value.indexOf('\\#[') : -1;
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var matchOfStringInterp = /(\\)?([#!]){((?:.|\n)*)$/.exec(value);
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var indexOfStringInterp =
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this.interpolationAllowed && matchOfStringInterp
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? matchOfStringInterp.index
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: Infinity;
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|
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if (indexOfEnd === -1) indexOfEnd = Infinity;
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if (indexOfStart === -1) indexOfStart = Infinity;
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if (indexOfEscaped === -1) indexOfEscaped = Infinity;
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|
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if (
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indexOfEscaped !== Infinity &&
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indexOfEscaped < indexOfEnd &&
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indexOfEscaped < indexOfStart &&
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indexOfEscaped < indexOfStringInterp
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) {
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prefix = prefix + value.substring(0, indexOfEscaped) + '#[';
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return this.addText(
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type,
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value.substring(indexOfEscaped + 3),
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prefix,
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escaped + 1
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);
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}
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if (
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indexOfStart !== Infinity &&
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indexOfStart < indexOfEnd &&
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indexOfStart < indexOfEscaped &&
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indexOfStart < indexOfStringInterp
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) {
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tok = this.tok(type, prefix + value.substring(0, indexOfStart));
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this.incrementColumn(prefix.length + indexOfStart + escaped);
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this.tokens.push(this.tokEnd(tok));
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tok = this.tok('start-pug-interpolation');
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this.incrementColumn(2);
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this.tokens.push(this.tokEnd(tok));
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var child = new this.constructor(value.substr(indexOfStart + 2), {
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filename: this.filename,
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interpolated: true,
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startingLine: this.lineno,
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startingColumn: this.colno,
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});
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|
var interpolated;
|
|
try {
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interpolated = child.getTokens();
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|
} catch (ex) {
|
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if (ex.code && /^PUG:/.test(ex.code)) {
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this.colno = ex.column;
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this.error(ex.code.substr(4), ex.msg);
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}
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throw ex;
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}
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this.colno = child.colno;
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this.tokens = this.tokens.concat(interpolated);
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tok = this.tok('end-pug-interpolation');
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this.incrementColumn(1);
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this.tokens.push(this.tokEnd(tok));
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this.addText(type, child.input);
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return;
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}
|
|
if (
|
|
indexOfEnd !== Infinity &&
|
|
indexOfEnd < indexOfStart &&
|
|
indexOfEnd < indexOfEscaped &&
|
|
indexOfEnd < indexOfStringInterp
|
|
) {
|
|
if (prefix + value.substring(0, indexOfEnd)) {
|
|
this.addText(type, value.substring(0, indexOfEnd), prefix);
|
|
}
|
|
this.ended = true;
|
|
this.input = value.substr(value.indexOf(']') + 1) + this.input;
|
|
return;
|
|
}
|
|
if (indexOfStringInterp !== Infinity) {
|
|
if (matchOfStringInterp[1]) {
|
|
prefix = prefix + value.substring(0, indexOfStringInterp) + '#{';
|
|
return this.addText(
|
|
type,
|
|
value.substring(indexOfStringInterp + 3),
|
|
prefix,
|
|
escaped + 1
|
|
);
|
|
}
|
|
var before = value.substr(0, indexOfStringInterp);
|
|
if (prefix || before) {
|
|
before = prefix + before;
|
|
tok = this.tok(type, before);
|
|
this.incrementColumn(before.length + escaped);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
}
|
|
|
|
var rest = matchOfStringInterp[3];
|
|
var range;
|
|
tok = this.tok('interpolated-code');
|
|
this.incrementColumn(2);
|
|
try {
|
|
range = characterParser.parseUntil(rest, '}');
|
|
} catch (ex) {
|
|
if (ex.index !== undefined) {
|
|
this.incrementColumn(ex.index);
|
|
}
|
|
if (ex.code === 'CHARACTER_PARSER:END_OF_STRING_REACHED') {
|
|
this.error(
|
|
'NO_END_BRACKET',
|
|
'End of line was reached with no closing bracket for interpolation.'
|
|
);
|
|
} else if (ex.code === 'CHARACTER_PARSER:MISMATCHED_BRACKET') {
|
|
this.error('BRACKET_MISMATCH', ex.message);
|
|
} else {
|
|
throw ex;
|
|
}
|
|
}
|
|
tok.mustEscape = matchOfStringInterp[2] === '#';
|
|
tok.buffer = true;
|
|
tok.val = range.src;
|
|
this.assertExpression(range.src);
|
|
|
|
if (range.end + 1 < rest.length) {
|
|
rest = rest.substr(range.end + 1);
|
|
this.incrementColumn(range.end + 1);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.addText(type, rest);
|
|
} else {
|
|
this.incrementColumn(rest.length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
}
|
|
return;
|
|
}
|
|
|
|
value = prefix + value;
|
|
tok = this.tok(type, value);
|
|
this.incrementColumn(value.length + escaped);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
},
|
|
|
|
text: function() {
|
|
var tok =
|
|
this.scan(/^(?:\| ?| )([^\n]+)/, 'text') ||
|
|
this.scan(/^( )/, 'text') ||
|
|
this.scan(/^\|( ?)/, 'text');
|
|
if (tok) {
|
|
this.addText('text', tok.val);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
textHtml: function() {
|
|
var tok = this.scan(/^(<[^\n]*)/, 'text-html');
|
|
if (tok) {
|
|
this.addText('text-html', tok.val);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Dot.
|
|
*/
|
|
|
|
dot: function() {
|
|
var tok;
|
|
if ((tok = this.scanEndOfLine(/^\./, 'dot'))) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.callLexerFunction('pipelessText');
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Extends.
|
|
*/
|
|
|
|
extends: function() {
|
|
var tok = this.scan(/^extends?(?= |$|\n)/, 'extends');
|
|
if (tok) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
if (!this.callLexerFunction('path')) {
|
|
this.error('NO_EXTENDS_PATH', 'missing path for extends');
|
|
}
|
|
return true;
|
|
}
|
|
if (this.scan(/^extends?\b/)) {
|
|
this.error('MALFORMED_EXTENDS', 'malformed extends');
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Block prepend.
|
|
*/
|
|
|
|
prepend: function() {
|
|
var captures;
|
|
if ((captures = /^(?:block +)?prepend +([^\n]+)/.exec(this.input))) {
|
|
var name = captures[1].trim();
|
|
var comment = '';
|
|
if (name.indexOf('//') !== -1) {
|
|
comment =
|
|
'//' +
|
|
name
|
|
.split('//')
|
|
.slice(1)
|
|
.join('//');
|
|
name = name.split('//')[0].trim();
|
|
}
|
|
if (!name) return;
|
|
var tok = this.tok('block', name);
|
|
var len = captures[0].length - comment.length;
|
|
while (this.whitespaceRe.test(this.input.charAt(len - 1))) len--;
|
|
this.incrementColumn(len);
|
|
tok.mode = 'prepend';
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.consume(captures[0].length - comment.length);
|
|
this.incrementColumn(captures[0].length - comment.length - len);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Block append.
|
|
*/
|
|
|
|
append: function() {
|
|
var captures;
|
|
if ((captures = /^(?:block +)?append +([^\n]+)/.exec(this.input))) {
|
|
var name = captures[1].trim();
|
|
var comment = '';
|
|
if (name.indexOf('//') !== -1) {
|
|
comment =
|
|
'//' +
|
|
name
|
|
.split('//')
|
|
.slice(1)
|
|
.join('//');
|
|
name = name.split('//')[0].trim();
|
|
}
|
|
if (!name) return;
|
|
var tok = this.tok('block', name);
|
|
var len = captures[0].length - comment.length;
|
|
while (this.whitespaceRe.test(this.input.charAt(len - 1))) len--;
|
|
this.incrementColumn(len);
|
|
tok.mode = 'append';
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.consume(captures[0].length - comment.length);
|
|
this.incrementColumn(captures[0].length - comment.length - len);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Block.
|
|
*/
|
|
|
|
block: function() {
|
|
var captures;
|
|
if ((captures = /^block +([^\n]+)/.exec(this.input))) {
|
|
var name = captures[1].trim();
|
|
var comment = '';
|
|
if (name.indexOf('//') !== -1) {
|
|
comment =
|
|
'//' +
|
|
name
|
|
.split('//')
|
|
.slice(1)
|
|
.join('//');
|
|
name = name.split('//')[0].trim();
|
|
}
|
|
if (!name) return;
|
|
var tok = this.tok('block', name);
|
|
var len = captures[0].length - comment.length;
|
|
while (this.whitespaceRe.test(this.input.charAt(len - 1))) len--;
|
|
this.incrementColumn(len);
|
|
tok.mode = 'replace';
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.consume(captures[0].length - comment.length);
|
|
this.incrementColumn(captures[0].length - comment.length - len);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Mixin Block.
|
|
*/
|
|
|
|
mixinBlock: function() {
|
|
var tok;
|
|
if ((tok = this.scanEndOfLine(/^block/, 'mixin-block'))) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Yield.
|
|
*/
|
|
|
|
yield: function() {
|
|
var tok = this.scanEndOfLine(/^yield/, 'yield');
|
|
if (tok) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Include.
|
|
*/
|
|
|
|
include: function() {
|
|
var tok = this.scan(/^include(?=:| |$|\n)/, 'include');
|
|
if (tok) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
while (this.callLexerFunction('filter', {inInclude: true}));
|
|
if (!this.callLexerFunction('path')) {
|
|
if (/^[^ \n]+/.test(this.input)) {
|
|
// if there is more text
|
|
this.fail();
|
|
} else {
|
|
// if not
|
|
this.error('NO_INCLUDE_PATH', 'missing path for include');
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
if (this.scan(/^include\b/)) {
|
|
this.error('MALFORMED_INCLUDE', 'malformed include');
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Path
|
|
*/
|
|
|
|
path: function() {
|
|
var tok = this.scanEndOfLine(/^ ([^\n]+)/, 'path');
|
|
if (tok && (tok.val = tok.val.trim())) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Case.
|
|
*/
|
|
|
|
case: function() {
|
|
var tok = this.scanEndOfLine(/^case +([^\n]+)/, 'case');
|
|
if (tok) {
|
|
this.incrementColumn(-tok.val.length);
|
|
this.assertExpression(tok.val);
|
|
this.incrementColumn(tok.val.length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
if (this.scan(/^case\b/)) {
|
|
this.error('NO_CASE_EXPRESSION', 'missing expression for case');
|
|
}
|
|
},
|
|
|
|
/**
|
|
* When.
|
|
*/
|
|
|
|
when: function() {
|
|
var tok = this.scanEndOfLine(/^when +([^:\n]+)/, 'when');
|
|
if (tok) {
|
|
var parser = characterParser(tok.val);
|
|
while (parser.isNesting() || parser.isString()) {
|
|
var rest = /:([^:\n]+)/.exec(this.input);
|
|
if (!rest) break;
|
|
|
|
tok.val += rest[0];
|
|
this.consume(rest[0].length);
|
|
this.incrementColumn(rest[0].length);
|
|
parser = characterParser(tok.val);
|
|
}
|
|
|
|
this.incrementColumn(-tok.val.length);
|
|
this.assertExpression(tok.val);
|
|
this.incrementColumn(tok.val.length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
if (this.scan(/^when\b/)) {
|
|
this.error('NO_WHEN_EXPRESSION', 'missing expression for when');
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Default.
|
|
*/
|
|
|
|
default: function() {
|
|
var tok = this.scanEndOfLine(/^default/, 'default');
|
|
if (tok) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
if (this.scan(/^default\b/)) {
|
|
this.error(
|
|
'DEFAULT_WITH_EXPRESSION',
|
|
'default should not have an expression'
|
|
);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Call mixin.
|
|
*/
|
|
|
|
call: function() {
|
|
var tok, captures, increment;
|
|
if ((captures = /^\+(\s*)(([-\w]+)|(#\{))/.exec(this.input))) {
|
|
// try to consume simple or interpolated call
|
|
if (captures[3]) {
|
|
// simple call
|
|
increment = captures[0].length;
|
|
this.consume(increment);
|
|
tok = this.tok('call', captures[3]);
|
|
} else {
|
|
// interpolated call
|
|
var match = this.bracketExpression(2 + captures[1].length);
|
|
increment = match.end + 1;
|
|
this.consume(increment);
|
|
this.assertExpression(match.src);
|
|
tok = this.tok('call', '#{' + match.src + '}');
|
|
}
|
|
|
|
this.incrementColumn(increment);
|
|
|
|
tok.args = null;
|
|
// Check for args (not attributes)
|
|
if ((captures = /^ *\(/.exec(this.input))) {
|
|
var range = this.bracketExpression(captures[0].length - 1);
|
|
if (!/^\s*[-\w]+ *=/.test(range.src)) {
|
|
// not attributes
|
|
this.incrementColumn(1);
|
|
this.consume(range.end + 1);
|
|
tok.args = range.src;
|
|
this.assertExpression('[' + tok.args + ']');
|
|
for (var i = 0; i <= tok.args.length; i++) {
|
|
if (tok.args[i] === '\n') {
|
|
this.incrementLine(1);
|
|
} else {
|
|
this.incrementColumn(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Mixin.
|
|
*/
|
|
|
|
mixin: function() {
|
|
var captures;
|
|
if ((captures = /^mixin +([-\w]+)(?: *\((.*)\))? */.exec(this.input))) {
|
|
this.consume(captures[0].length);
|
|
var tok = this.tok('mixin', captures[1]);
|
|
tok.args = captures[2] || null;
|
|
this.incrementColumn(captures[0].length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Conditional.
|
|
*/
|
|
|
|
conditional: function() {
|
|
var captures;
|
|
if ((captures = /^(if|unless|else if|else)\b([^\n]*)/.exec(this.input))) {
|
|
this.consume(captures[0].length);
|
|
var type = captures[1].replace(/ /g, '-');
|
|
var js = captures[2] && captures[2].trim();
|
|
// type can be "if", "else-if" and "else"
|
|
var tok = this.tok(type, js);
|
|
this.incrementColumn(captures[0].length - js.length);
|
|
|
|
switch (type) {
|
|
case 'if':
|
|
case 'else-if':
|
|
this.assertExpression(js);
|
|
break;
|
|
case 'unless':
|
|
this.assertExpression(js);
|
|
tok.val = '!(' + js + ')';
|
|
tok.type = 'if';
|
|
break;
|
|
case 'else':
|
|
if (js) {
|
|
this.error(
|
|
'ELSE_CONDITION',
|
|
'`else` cannot have a condition, perhaps you meant `else if`'
|
|
);
|
|
}
|
|
break;
|
|
}
|
|
this.incrementColumn(js.length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* While.
|
|
*/
|
|
|
|
while: function() {
|
|
var captures, tok;
|
|
if ((captures = /^while +([^\n]+)/.exec(this.input))) {
|
|
this.consume(captures[0].length);
|
|
this.assertExpression(captures[1]);
|
|
tok = this.tok('while', captures[1]);
|
|
this.incrementColumn(captures[0].length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
if (this.scan(/^while\b/)) {
|
|
this.error('NO_WHILE_EXPRESSION', 'missing expression for while');
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Each.
|
|
*/
|
|
|
|
each: function() {
|
|
var captures;
|
|
if (
|
|
(captures = /^(?:each|for) +([a-zA-Z_$][\w$]*)(?: *, *([a-zA-Z_$][\w$]*))? * in *([^\n]+)/.exec(
|
|
this.input
|
|
))
|
|
) {
|
|
this.consume(captures[0].length);
|
|
var tok = this.tok('each', captures[1]);
|
|
tok.key = captures[2] || null;
|
|
this.incrementColumn(captures[0].length - captures[3].length);
|
|
this.assertExpression(captures[3]);
|
|
tok.code = captures[3];
|
|
this.incrementColumn(captures[3].length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
const name = /^each\b/.exec(this.input) ? 'each' : 'for';
|
|
if (this.scan(/^(?:each|for)\b/)) {
|
|
this.error(
|
|
'MALFORMED_EACH',
|
|
'This `' +
|
|
name +
|
|
'` has a syntax error. `' +
|
|
name +
|
|
'` statements should be of the form: `' +
|
|
name +
|
|
' VARIABLE_NAME of JS_EXPRESSION`'
|
|
);
|
|
}
|
|
if (
|
|
(captures = /^- *(?:each|for) +([a-zA-Z_$][\w$]*)(?: *, *([a-zA-Z_$][\w$]*))? +in +([^\n]+)/.exec(
|
|
this.input
|
|
))
|
|
) {
|
|
this.error(
|
|
'MALFORMED_EACH',
|
|
'Pug each and for should no longer be prefixed with a dash ("-"). They are pug keywords and not part of JavaScript.'
|
|
);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* EachOf.
|
|
*/
|
|
|
|
eachOf: function() {
|
|
var captures;
|
|
if ((captures = /^(?:each|for) (.*) of *([^\n]+)/.exec(this.input))) {
|
|
this.consume(captures[0].length);
|
|
var tok = this.tok('eachOf', captures[1]);
|
|
tok.value = captures[1];
|
|
this.incrementColumn(captures[0].length - captures[2].length);
|
|
this.assertExpression(captures[2]);
|
|
tok.code = captures[2];
|
|
this.incrementColumn(captures[2].length);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
|
|
if (
|
|
!(
|
|
/^[a-zA-Z_$][\w$]*$/.test(tok.value.trim()) ||
|
|
/^\[ *[a-zA-Z_$][\w$]* *\, *[a-zA-Z_$][\w$]* *\]$/.test(
|
|
tok.value.trim()
|
|
)
|
|
)
|
|
) {
|
|
this.error(
|
|
'MALFORMED_EACH_OF_LVAL',
|
|
'The value variable for each must either be a valid identifier (e.g. `item`) or a pair of identifiers in square brackets (e.g. `[key, value]`).'
|
|
);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
if (
|
|
(captures = /^- *(?:each|for) +([a-zA-Z_$][\w$]*)(?: *, *([a-zA-Z_$][\w$]*))? +of +([^\n]+)/.exec(
|
|
this.input
|
|
))
|
|
) {
|
|
this.error(
|
|
'MALFORMED_EACH',
|
|
'Pug each and for should not be prefixed with a dash ("-"). They are pug keywords and not part of JavaScript.'
|
|
);
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Code.
|
|
*/
|
|
|
|
code: function() {
|
|
var captures;
|
|
if ((captures = /^(!?=|-)[ \t]*([^\n]+)/.exec(this.input))) {
|
|
var flags = captures[1];
|
|
var code = captures[2];
|
|
var shortened = 0;
|
|
if (this.interpolated) {
|
|
var parsed;
|
|
try {
|
|
parsed = characterParser.parseUntil(code, ']');
|
|
} catch (err) {
|
|
if (err.index !== undefined) {
|
|
this.incrementColumn(captures[0].length - code.length + err.index);
|
|
}
|
|
if (err.code === 'CHARACTER_PARSER:END_OF_STRING_REACHED') {
|
|
this.error(
|
|
'NO_END_BRACKET',
|
|
'End of line was reached with no closing bracket for interpolation.'
|
|
);
|
|
} else if (err.code === 'CHARACTER_PARSER:MISMATCHED_BRACKET') {
|
|
this.error('BRACKET_MISMATCH', err.message);
|
|
} else {
|
|
throw err;
|
|
}
|
|
}
|
|
shortened = code.length - parsed.end;
|
|
code = parsed.src;
|
|
}
|
|
var consumed = captures[0].length - shortened;
|
|
this.consume(consumed);
|
|
var tok = this.tok('code', code);
|
|
tok.mustEscape = flags.charAt(0) === '=';
|
|
tok.buffer = flags.charAt(0) === '=' || flags.charAt(1) === '=';
|
|
|
|
// p #[!= abc] hey
|
|
// ^ original colno
|
|
// -------------- captures[0]
|
|
// -------- captures[2]
|
|
// ------ captures[0] - captures[2]
|
|
// ^ after colno
|
|
|
|
// = abc
|
|
// ^ original colno
|
|
// ------- captures[0]
|
|
// --- captures[2]
|
|
// ---- captures[0] - captures[2]
|
|
// ^ after colno
|
|
this.incrementColumn(captures[0].length - captures[2].length);
|
|
if (tok.buffer) this.assertExpression(code);
|
|
this.tokens.push(tok);
|
|
|
|
// p #[!= abc] hey
|
|
// ^ original colno
|
|
// ----- shortened
|
|
// --- code
|
|
// ^ after colno
|
|
|
|
// = abc
|
|
// ^ original colno
|
|
// shortened
|
|
// --- code
|
|
// ^ after colno
|
|
this.incrementColumn(code.length);
|
|
this.tokEnd(tok);
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Block code.
|
|
*/
|
|
blockCode: function() {
|
|
var tok;
|
|
if ((tok = this.scanEndOfLine(/^-/, 'blockcode'))) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.interpolationAllowed = false;
|
|
this.callLexerFunction('pipelessText');
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Attribute Name.
|
|
*/
|
|
attribute: function(str) {
|
|
var quote = '';
|
|
var quoteRe = /['"]/;
|
|
var key = '';
|
|
var i;
|
|
|
|
// consume all whitespace before the key
|
|
for (i = 0; i < str.length; i++) {
|
|
if (!this.whitespaceRe.test(str[i])) break;
|
|
if (str[i] === '\n') {
|
|
this.incrementLine(1);
|
|
} else {
|
|
this.incrementColumn(1);
|
|
}
|
|
}
|
|
|
|
if (i === str.length) {
|
|
return '';
|
|
}
|
|
|
|
var tok = this.tok('attribute');
|
|
|
|
// quote?
|
|
if (quoteRe.test(str[i])) {
|
|
quote = str[i];
|
|
this.incrementColumn(1);
|
|
i++;
|
|
}
|
|
|
|
// start looping through the key
|
|
for (; i < str.length; i++) {
|
|
if (quote) {
|
|
if (str[i] === quote) {
|
|
this.incrementColumn(1);
|
|
i++;
|
|
break;
|
|
}
|
|
} else {
|
|
if (
|
|
this.whitespaceRe.test(str[i]) ||
|
|
str[i] === '!' ||
|
|
str[i] === '=' ||
|
|
str[i] === ','
|
|
) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
key += str[i];
|
|
|
|
if (str[i] === '\n') {
|
|
this.incrementLine(1);
|
|
} else {
|
|
this.incrementColumn(1);
|
|
}
|
|
}
|
|
|
|
tok.name = key;
|
|
|
|
var valueResponse = this.attributeValue(str.substr(i));
|
|
|
|
if (valueResponse.val) {
|
|
tok.val = valueResponse.val;
|
|
tok.mustEscape = valueResponse.mustEscape;
|
|
} else {
|
|
// was a boolean attribute (ex: `input(disabled)`)
|
|
tok.val = true;
|
|
tok.mustEscape = true;
|
|
}
|
|
|
|
str = valueResponse.remainingSource;
|
|
|
|
this.tokens.push(this.tokEnd(tok));
|
|
|
|
for (i = 0; i < str.length; i++) {
|
|
if (!this.whitespaceRe.test(str[i])) {
|
|
break;
|
|
}
|
|
if (str[i] === '\n') {
|
|
this.incrementLine(1);
|
|
} else {
|
|
this.incrementColumn(1);
|
|
}
|
|
}
|
|
|
|
if (str[i] === ',') {
|
|
this.incrementColumn(1);
|
|
i++;
|
|
}
|
|
|
|
return str.substr(i);
|
|
},
|
|
|
|
/**
|
|
* Attribute Value.
|
|
*/
|
|
attributeValue: function(str) {
|
|
var quoteRe = /['"]/;
|
|
var val = '';
|
|
var done, i, x;
|
|
var escapeAttr = true;
|
|
var state = characterParser.defaultState();
|
|
var col = this.colno;
|
|
var line = this.lineno;
|
|
|
|
// consume all whitespace before the equals sign
|
|
for (i = 0; i < str.length; i++) {
|
|
if (!this.whitespaceRe.test(str[i])) break;
|
|
if (str[i] === '\n') {
|
|
line++;
|
|
col = 1;
|
|
} else {
|
|
col++;
|
|
}
|
|
}
|
|
|
|
if (i === str.length) {
|
|
return {remainingSource: str};
|
|
}
|
|
|
|
if (str[i] === '!') {
|
|
escapeAttr = false;
|
|
col++;
|
|
i++;
|
|
if (str[i] !== '=')
|
|
this.error(
|
|
'INVALID_KEY_CHARACTER',
|
|
'Unexpected character ' + str[i] + ' expected `=`'
|
|
);
|
|
}
|
|
|
|
if (str[i] !== '=') {
|
|
// check for anti-pattern `div("foo"bar)`
|
|
if (i === 0 && str && !this.whitespaceRe.test(str[0]) && str[0] !== ',') {
|
|
this.error(
|
|
'INVALID_KEY_CHARACTER',
|
|
'Unexpected character ' + str[0] + ' expected `=`'
|
|
);
|
|
} else {
|
|
return {remainingSource: str};
|
|
}
|
|
}
|
|
|
|
this.lineno = line;
|
|
this.colno = col + 1;
|
|
i++;
|
|
|
|
// consume all whitespace before the value
|
|
for (; i < str.length; i++) {
|
|
if (!this.whitespaceRe.test(str[i])) break;
|
|
if (str[i] === '\n') {
|
|
this.incrementLine(1);
|
|
} else {
|
|
this.incrementColumn(1);
|
|
}
|
|
}
|
|
|
|
line = this.lineno;
|
|
col = this.colno;
|
|
|
|
// start looping through the value
|
|
for (; i < str.length; i++) {
|
|
// if the character is in a string or in parentheses/brackets/braces
|
|
if (!(state.isNesting() || state.isString())) {
|
|
if (this.whitespaceRe.test(str[i])) {
|
|
done = false;
|
|
|
|
// find the first non-whitespace character
|
|
for (x = i; x < str.length; x++) {
|
|
if (!this.whitespaceRe.test(str[x])) {
|
|
// if it is a JavaScript punctuator, then assume that it is
|
|
// a part of the value
|
|
const isNotPunctuator = !characterParser.isPunctuator(str[x]);
|
|
const isQuote = quoteRe.test(str[x]);
|
|
const isColon = str[x] === ':';
|
|
const isSpreadOperator =
|
|
str[x] + str[x + 1] + str[x + 2] === '...';
|
|
if (
|
|
(isNotPunctuator || isQuote || isColon || isSpreadOperator) &&
|
|
this.assertExpression(val, true)
|
|
) {
|
|
done = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
// if everything else is whitespace, return now so last attribute
|
|
// does not include trailing whitespace
|
|
if (done || x === str.length) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
// if there's no whitespace and the character is not ',', the
|
|
// attribute did not end.
|
|
if (str[i] === ',' && this.assertExpression(val, true)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
state = characterParser.parseChar(str[i], state);
|
|
val += str[i];
|
|
|
|
if (str[i] === '\n') {
|
|
line++;
|
|
col = 1;
|
|
} else {
|
|
col++;
|
|
}
|
|
}
|
|
|
|
this.assertExpression(val);
|
|
|
|
this.lineno = line;
|
|
this.colno = col;
|
|
|
|
return {val: val, mustEscape: escapeAttr, remainingSource: str.substr(i)};
|
|
},
|
|
|
|
/**
|
|
* Attributes.
|
|
*/
|
|
|
|
attrs: function() {
|
|
var tok;
|
|
|
|
if ('(' == this.input.charAt(0)) {
|
|
tok = this.tok('start-attributes');
|
|
var index = this.bracketExpression().end;
|
|
var str = this.input.substr(1, index - 1);
|
|
|
|
this.incrementColumn(1);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.assertNestingCorrect(str);
|
|
this.consume(index + 1);
|
|
|
|
while (str) {
|
|
str = this.attribute(str);
|
|
}
|
|
|
|
tok = this.tok('end-attributes');
|
|
this.incrementColumn(1);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* &attributes block
|
|
*/
|
|
attributesBlock: function() {
|
|
if (/^&attributes\b/.test(this.input)) {
|
|
var consumed = 11;
|
|
this.consume(consumed);
|
|
var tok = this.tok('&attributes');
|
|
this.incrementColumn(consumed);
|
|
var args = this.bracketExpression();
|
|
consumed = args.end + 1;
|
|
this.consume(consumed);
|
|
tok.val = args.src;
|
|
this.incrementColumn(consumed);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Indent | Outdent | Newline.
|
|
*/
|
|
|
|
indent: function() {
|
|
var captures = this.scanIndentation();
|
|
var tok;
|
|
|
|
if (captures) {
|
|
var indents = captures[1].length;
|
|
|
|
this.incrementLine(1);
|
|
this.consume(indents + 1);
|
|
|
|
if (' ' == this.input[0] || '\t' == this.input[0]) {
|
|
this.error(
|
|
'INVALID_INDENTATION',
|
|
'Invalid indentation, you can use tabs or spaces but not both'
|
|
);
|
|
}
|
|
|
|
// blank line
|
|
if ('\n' == this.input[0]) {
|
|
this.interpolationAllowed = true;
|
|
return this.tokEnd(this.tok('newline'));
|
|
}
|
|
|
|
// outdent
|
|
if (indents < this.indentStack[0]) {
|
|
var outdent_count = 0;
|
|
while (this.indentStack[0] > indents) {
|
|
if (this.indentStack[1] < indents) {
|
|
this.error(
|
|
'INCONSISTENT_INDENTATION',
|
|
'Inconsistent indentation. Expecting either ' +
|
|
this.indentStack[1] +
|
|
' or ' +
|
|
this.indentStack[0] +
|
|
' spaces/tabs.'
|
|
);
|
|
}
|
|
outdent_count++;
|
|
this.indentStack.shift();
|
|
}
|
|
while (outdent_count--) {
|
|
this.colno = 1;
|
|
tok = this.tok('outdent');
|
|
this.colno = this.indentStack[0] + 1;
|
|
this.tokens.push(this.tokEnd(tok));
|
|
}
|
|
// indent
|
|
} else if (indents && indents != this.indentStack[0]) {
|
|
tok = this.tok('indent', indents);
|
|
this.colno = 1 + indents;
|
|
this.tokens.push(this.tokEnd(tok));
|
|
this.indentStack.unshift(indents);
|
|
// newline
|
|
} else {
|
|
tok = this.tok('newline');
|
|
this.colno = 1 + Math.min(this.indentStack[0] || 0, indents);
|
|
this.tokens.push(this.tokEnd(tok));
|
|
}
|
|
|
|
this.interpolationAllowed = true;
|
|
return true;
|
|
}
|
|
},
|
|
|
|
pipelessText: function pipelessText(indents) {
|
|
while (this.callLexerFunction('blank'));
|
|
|
|
var captures = this.scanIndentation();
|
|
|
|
indents = indents || (captures && captures[1].length);
|
|
if (indents > this.indentStack[0]) {
|
|
this.tokens.push(this.tokEnd(this.tok('start-pipeless-text')));
|
|
var tokens = [];
|
|
var token_indent = [];
|
|
var isMatch;
|
|
// Index in this.input. Can't use this.consume because we might need to
|
|
// retry lexing the block.
|
|
var stringPtr = 0;
|
|
do {
|
|
// text has `\n` as a prefix
|
|
var i = this.input.substr(stringPtr + 1).indexOf('\n');
|
|
if (-1 == i) i = this.input.length - stringPtr - 1;
|
|
var str = this.input.substr(stringPtr + 1, i);
|
|
var lineCaptures = this.indentRe.exec('\n' + str);
|
|
var lineIndents = lineCaptures && lineCaptures[1].length;
|
|
isMatch = lineIndents >= indents;
|
|
token_indent.push(isMatch);
|
|
isMatch = isMatch || !str.trim();
|
|
if (isMatch) {
|
|
// consume test along with `\n` prefix if match
|
|
stringPtr += str.length + 1;
|
|
tokens.push(str.substr(indents));
|
|
} else if (lineIndents > this.indentStack[0]) {
|
|
// line is indented less than the first line but is still indented
|
|
// need to retry lexing the text block
|
|
this.tokens.pop();
|
|
return pipelessText.call(this, lineCaptures[1].length);
|
|
}
|
|
} while (this.input.length - stringPtr && isMatch);
|
|
this.consume(stringPtr);
|
|
while (this.input.length === 0 && tokens[tokens.length - 1] === '')
|
|
tokens.pop();
|
|
tokens.forEach(
|
|
function(token, i) {
|
|
var tok;
|
|
this.incrementLine(1);
|
|
if (i !== 0) tok = this.tok('newline');
|
|
if (token_indent[i]) this.incrementColumn(indents);
|
|
if (tok) this.tokens.push(this.tokEnd(tok));
|
|
this.addText('text', token);
|
|
}.bind(this)
|
|
);
|
|
this.tokens.push(this.tokEnd(this.tok('end-pipeless-text')));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* Slash.
|
|
*/
|
|
|
|
slash: function() {
|
|
var tok = this.scan(/^\//, 'slash');
|
|
if (tok) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
/**
|
|
* ':'
|
|
*/
|
|
|
|
colon: function() {
|
|
var tok = this.scan(/^: +/, ':');
|
|
if (tok) {
|
|
this.tokens.push(this.tokEnd(tok));
|
|
return true;
|
|
}
|
|
},
|
|
|
|
fail: function() {
|
|
this.error(
|
|
'UNEXPECTED_TEXT',
|
|
'unexpected text "' + this.input.substr(0, 5) + '"'
|
|
);
|
|
},
|
|
|
|
callLexerFunction: function(func) {
|
|
var rest = [];
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
rest.push(arguments[i]);
|
|
}
|
|
var pluginArgs = [this].concat(rest);
|
|
for (var i = 0; i < this.plugins.length; i++) {
|
|
var plugin = this.plugins[i];
|
|
if (plugin[func] && plugin[func].apply(plugin, pluginArgs)) {
|
|
return true;
|
|
}
|
|
}
|
|
return this[func].apply(this, rest);
|
|
},
|
|
|
|
/**
|
|
* Move to the next token
|
|
*
|
|
* @api private
|
|
*/
|
|
|
|
advance: function() {
|
|
return (
|
|
this.callLexerFunction('blank') ||
|
|
this.callLexerFunction('eos') ||
|
|
this.callLexerFunction('endInterpolation') ||
|
|
this.callLexerFunction('yield') ||
|
|
this.callLexerFunction('doctype') ||
|
|
this.callLexerFunction('interpolation') ||
|
|
this.callLexerFunction('case') ||
|
|
this.callLexerFunction('when') ||
|
|
this.callLexerFunction('default') ||
|
|
this.callLexerFunction('extends') ||
|
|
this.callLexerFunction('append') ||
|
|
this.callLexerFunction('prepend') ||
|
|
this.callLexerFunction('block') ||
|
|
this.callLexerFunction('mixinBlock') ||
|
|
this.callLexerFunction('include') ||
|
|
this.callLexerFunction('mixin') ||
|
|
this.callLexerFunction('call') ||
|
|
this.callLexerFunction('conditional') ||
|
|
this.callLexerFunction('eachOf') ||
|
|
this.callLexerFunction('each') ||
|
|
this.callLexerFunction('while') ||
|
|
this.callLexerFunction('tag') ||
|
|
this.callLexerFunction('filter') ||
|
|
this.callLexerFunction('blockCode') ||
|
|
this.callLexerFunction('code') ||
|
|
this.callLexerFunction('id') ||
|
|
this.callLexerFunction('dot') ||
|
|
this.callLexerFunction('className') ||
|
|
this.callLexerFunction('attrs') ||
|
|
this.callLexerFunction('attributesBlock') ||
|
|
this.callLexerFunction('indent') ||
|
|
this.callLexerFunction('text') ||
|
|
this.callLexerFunction('textHtml') ||
|
|
this.callLexerFunction('comment') ||
|
|
this.callLexerFunction('slash') ||
|
|
this.callLexerFunction('colon') ||
|
|
this.fail()
|
|
);
|
|
},
|
|
|
|
/**
|
|
* Return an array of tokens for the current file
|
|
*
|
|
* @returns {Array.<Token>}
|
|
* @api public
|
|
*/
|
|
getTokens: function() {
|
|
while (!this.ended) {
|
|
this.callLexerFunction('advance');
|
|
}
|
|
return this.tokens;
|
|
},
|
|
};
|