1380 lines
38 KiB
JavaScript
1380 lines
38 KiB
JavaScript
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'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('Expected source code to be a string but got "' + (typeof str) + '"')
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}
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if (typeof options !== 'object') {
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throw new Error('Expected "options" to be an object but got "' + (typeof options) + '"')
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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.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, {line: this.lineno, column: this.colno, filename: this.filename, src: this.originalInput});
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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 = '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('INCORRECT_NESTING', 'Nesting must match on expression `' + exp + '`')
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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 = {type: type, line: this.lineno, col: this.colno};
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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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* 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(start === '(' || start === '{' || start === '[',
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'The start character should be "(", "{" or "["');
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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('NO_END_BRACKET', 'The end of the string reached with no closing bracket ' + end + ' found.');
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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('NO_END_BRACKET', 'End of line was reached with no closing bracket for interpolation.');
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}
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for (var i = 0; this.indentStack[i]; i++) {
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this.tokens.push(this.tok('outdent'));
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}
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this.tokens.push(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.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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return true;
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}
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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, name = captures[1], 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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||
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return true;
|
||
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}
|
||
|
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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.callLexerFunction('attrs');
|
||
|
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if (!inInclude) {
|
||
|
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this.interpolationAllowed = false;
|
||
|
|
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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/**
|
||
|
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* Doctype.
|
||
|
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*/
|
||
|
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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(node);
|
||
|
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return true;
|
||
|
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}
|
||
|
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},
|
||
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|
||
|
|
/**
|
||
|
|
* Id.
|
||
|
|
*/
|
||
|
|
|
||
|
|
id: function() {
|
||
|
|
var tok = this.scan(/^#([\w-]+)/, 'id');
|
||
|
|
if (tok) {
|
||
|
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this.tokens.push(tok);
|
||
|
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this.incrementColumn(tok.val.length);
|
||
|
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return true;
|
||
|
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}
|
||
|
|
if (/^#/.test(this.input)) {
|
||
|
|
this.error('INVALID_ID', '"' + /.[^ \t\(\#\.\:]*/.exec(this.input.substr(1))[0] + '" is not a valid ID.');
|
||
|
|
}
|
||
|
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},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Class.
|
||
|
|
*/
|
||
|
|
|
||
|
|
className: function() {
|
||
|
|
var tok = this.scan(/^\.(-?-?[_a-z][_a-z0-9\-]*)/i, 'class');
|
||
|
|
if (tok) {
|
||
|
|
this.tokens.push(tok);
|
||
|
|
this.incrementColumn(tok.val.length);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
if (/^\.\-/i.test(this.input)) {
|
||
|
|
this.error('INVALID_CLASS_NAME', 'If a class name begins with a "-" or "--", it must be followed by a letter or underscore.');
|
||
|
|
}
|
||
|
|
if (/^\.[0-9]/i.test(this.input)) {
|
||
|
|
this.error('INVALID_CLASS_NAME', 'Class names must begin with "-", "_" or a letter.');
|
||
|
|
}
|
||
|
|
if (/^\./.test(this.input)) {
|
||
|
|
this.error('INVALID_CLASS_NAME', '"' + /.[^ \t\(\#\.\:]*/.exec(this.input.substr(1))[0] + '" is not a valid class name. Class names must begin with "-", "_" or a letter and can only contain "_", "-", a-z and 0-9.');
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Text.
|
||
|
|
*/
|
||
|
|
endInterpolation: function () {
|
||
|
|
if (this.interpolated && this.input[0] === ']') {
|
||
|
|
this.input = this.input.substr(1);
|
||
|
|
this.ended = true;
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
addText: function (type, value, prefix, escaped) {
|
||
|
|
if (value + prefix === '') return;
|
||
|
|
prefix = prefix || '';
|
||
|
|
var indexOfEnd = this.interpolated ? value.indexOf(']') : -1;
|
||
|
|
var indexOfStart = this.interpolationAllowed ? value.indexOf('#[') : -1;
|
||
|
|
var indexOfEscaped = this.interpolationAllowed ? value.indexOf('\\#[') : -1;
|
||
|
|
var matchOfStringInterp = /(\\)?([#!]){((?:.|\n)*)$/.exec(value);
|
||
|
|
var indexOfStringInterp = this.interpolationAllowed && matchOfStringInterp ? matchOfStringInterp.index : Infinity;
|
||
|
|
|
||
|
|
if (indexOfEnd === -1) indexOfEnd = Infinity;
|
||
|
|
if (indexOfStart === -1) indexOfStart = Infinity;
|
||
|
|
if (indexOfEscaped === -1) indexOfEscaped = Infinity;
|
||
|
|
|
||
|
|
if (indexOfEscaped !== Infinity && indexOfEscaped < indexOfEnd && indexOfEscaped < indexOfStart && indexOfEscaped < indexOfStringInterp) {
|
||
|
|
prefix = prefix + value.substring(0, indexOfEscaped) + '#[';
|
||
|
|
return this.addText(type, value.substring(indexOfEscaped + 3), prefix, true);
|
||
|
|
}
|
||
|
|
if (indexOfStart !== Infinity && indexOfStart < indexOfEnd && indexOfStart < indexOfEscaped && indexOfStart < indexOfStringInterp) {
|
||
|
|
this.tokens.push(this.tok(type, prefix + value.substring(0, indexOfStart)));
|
||
|
|
this.incrementColumn(prefix.length + indexOfStart);
|
||
|
|
if (escaped) this.incrementColumn(1);
|
||
|
|
this.tokens.push(this.tok('start-pug-interpolation'));
|
||
|
|
this.incrementColumn(2);
|
||
|
|
var child = new this.constructor(value.substr(indexOfStart + 2), {
|
||
|
|
filename: this.filename,
|
||
|
|
interpolated: true,
|
||
|
|
startingLine: this.lineno,
|
||
|
|
startingColumn: this.colno
|
||
|
|
});
|
||
|
|
var interpolated;
|
||
|
|
try {
|
||
|
|
interpolated = child.getTokens();
|
||
|
|
} catch (ex) {
|
||
|
|
if (ex.code && /^PUG:/.test(ex.code)) {
|
||
|
|
this.colno = ex.column;
|
||
|
|
this.error(ex.code.substr(4), ex.msg);
|
||
|
|
}
|
||
|
|
throw ex;
|
||
|
|
}
|
||
|
|
this.colno = child.colno;
|
||
|
|
this.tokens = this.tokens.concat(interpolated);
|
||
|
|
this.tokens.push(this.tok('end-pug-interpolation'));
|
||
|
|
this.incrementColumn(1);
|
||
|
|
this.addText(type, child.input);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
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);
|
||
|
|
}
|
||
|
|
var before = value.substr(0, indexOfStringInterp);
|
||
|
|
if (prefix || before) {
|
||
|
|
before = prefix + before;
|
||
|
|
this.tokens.push(this.tok(type, before));
|
||
|
|
this.incrementColumn(before.length);
|
||
|
|
}
|
||
|
|
|
||
|
|
var rest = matchOfStringInterp[3];
|
||
|
|
var range;
|
||
|
|
var 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);
|
||
|
|
this.tokens.push(tok);
|
||
|
|
|
||
|
|
if (range.end + 1 < rest.length) {
|
||
|
|
rest = rest.substr(range.end + 1);
|
||
|
|
this.incrementColumn(range.end + 1);
|
||
|
|
this.addText(type, rest);
|
||
|
|
} else {
|
||
|
|
this.incrementColumn(rest.length);
|
||
|
|
}
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
value = prefix + value;
|
||
|
|
this.tokens.push(this.tok(type, value));
|
||
|
|
this.incrementColumn(value.length);
|
||
|
|
},
|
||
|
|
|
||
|
|
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(tok);
|
||
|
|
this.callLexerFunction('pipelessText');
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Extends.
|
||
|
|
*/
|
||
|
|
|
||
|
|
"extends": function() {
|
||
|
|
var tok = this.scan(/^extends?(?= |$|\n)/, 'extends');
|
||
|
|
if (tok) {
|
||
|
|
this.tokens.push(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;
|
||
|
|
this.consume(captures[0].length - comment.length);
|
||
|
|
var tok = this.tok('block', name);
|
||
|
|
tok.mode = 'prepend';
|
||
|
|
this.tokens.push(tok);
|
||
|
|
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;
|
||
|
|
this.consume(captures[0].length - comment.length);
|
||
|
|
var tok = this.tok('block', name);
|
||
|
|
tok.mode = 'append';
|
||
|
|
this.tokens.push(tok);
|
||
|
|
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;
|
||
|
|
this.consume(captures[0].length - comment.length);
|
||
|
|
var tok = this.tok('block', name);
|
||
|
|
tok.mode = 'replace';
|
||
|
|
this.tokens.push(tok);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Mixin Block.
|
||
|
|
*/
|
||
|
|
|
||
|
|
mixinBlock: function() {
|
||
|
|
var tok;
|
||
|
|
if (tok = this.scanEndOfLine(/^block/, 'mixin-block')) {
|
||
|
|
this.tokens.push(tok);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Yield.
|
||
|
|
*/
|
||
|
|
|
||
|
|
'yield': function() {
|
||
|
|
var tok = this.scanEndOfLine(/^yield/, 'yield');
|
||
|
|
if (tok) {
|
||
|
|
this.tokens.push(tok);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Include.
|
||
|
|
*/
|
||
|
|
|
||
|
|
include: function() {
|
||
|
|
var tok = this.scan(/^include(?=:| |$|\n)/, 'include');
|
||
|
|
if (tok) {
|
||
|
|
this.tokens.push(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(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(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(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(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(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.tokens.push(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.tokens.push(tok);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* While.
|
||
|
|
*/
|
||
|
|
|
||
|
|
"while": function() {
|
||
|
|
var captures;
|
||
|
|
if (captures = /^while +([^\n]+)/.exec(this.input)) {
|
||
|
|
this.consume(captures[0].length);
|
||
|
|
this.assertExpression(captures[1])
|
||
|
|
this.tokens.push(this.tok('while', captures[1]));
|
||
|
|
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(tok);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
if (this.scan(/^(?:each|for)\b/)) {
|
||
|
|
this.error('MALFORMED_EACH', 'malformed each');
|
||
|
|
}
|
||
|
|
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.'
|
||
|
|
);
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Block code.
|
||
|
|
*/
|
||
|
|
blockCode: function() {
|
||
|
|
var tok
|
||
|
|
if (tok = this.scanEndOfLine(/^-/, 'blockcode')) {
|
||
|
|
this.tokens.push(tok);
|
||
|
|
this.interpolationAllowed = false;
|
||
|
|
this.callLexerFunction('pipelessText');
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Attributes.
|
||
|
|
*/
|
||
|
|
|
||
|
|
attrs: function() {
|
||
|
|
if ('(' == this.input.charAt(0)) {
|
||
|
|
var startingLine = this.lineno;
|
||
|
|
this.tokens.push(this.tok('start-attributes'));
|
||
|
|
var index = this.bracketExpression().end
|
||
|
|
, str = this.input.substr(1, index-1);
|
||
|
|
|
||
|
|
this.incrementColumn(1);
|
||
|
|
this.assertNestingCorrect(str);
|
||
|
|
|
||
|
|
var quote = '';
|
||
|
|
var self = this;
|
||
|
|
|
||
|
|
this.consume(index + 1);
|
||
|
|
|
||
|
|
var whitespaceRe = /[ \n\t]/;
|
||
|
|
var quoteRe = /['"]/;
|
||
|
|
|
||
|
|
var escapedAttr = true
|
||
|
|
var key = '';
|
||
|
|
var val = '';
|
||
|
|
var state = characterParser.defaultState();
|
||
|
|
var lineno = startingLine;
|
||
|
|
var colnoBeginAttr = this.colno;
|
||
|
|
var colnoBeginVal;
|
||
|
|
var loc = 'key';
|
||
|
|
var isEndOfAttribute = function (i) {
|
||
|
|
// if the key is not started, then the attribute cannot be ended
|
||
|
|
if (key.trim() === '') {
|
||
|
|
colnoBeginAttr = this.colno;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
// if there's nothing more then the attribute must be ended
|
||
|
|
if (i === str.length) return true;
|
||
|
|
|
||
|
|
if (loc === 'key') {
|
||
|
|
if (whitespaceRe.test(str[i])) {
|
||
|
|
// find the first non-whitespace character
|
||
|
|
for (var x = i; x < str.length; x++) {
|
||
|
|
if (!whitespaceRe.test(str[x])) {
|
||
|
|
// starts a `value`
|
||
|
|
if (str[x] === '=' || str[x] === '!') return false;
|
||
|
|
// will be handled when x === i
|
||
|
|
else if (str[x] === ',') return false;
|
||
|
|
// attribute ended
|
||
|
|
else return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if there's no whitespace and the character is not ',', the
|
||
|
|
// attribute did not end.
|
||
|
|
return str[i] === ',';
|
||
|
|
} else if (loc === 'value') {
|
||
|
|
// if the character is in a string or in parentheses/brackets/braces
|
||
|
|
if (state.isNesting() || state.isString()) return false;
|
||
|
|
|
||
|
|
// if the current value expression is not valid JavaScript, then
|
||
|
|
// assume that the user did not end the value. To enforce this,
|
||
|
|
// we call `self.assertExpression(val, true)`, but since the other
|
||
|
|
// tests are much faster, we run the other tests first.
|
||
|
|
|
||
|
|
if (whitespaceRe.test(str[i])) {
|
||
|
|
// find the first non-whitespace character
|
||
|
|
for (var x = i; x < str.length; x++) {
|
||
|
|
if (!whitespaceRe.test(str[x])) {
|
||
|
|
// if it is a JavaScript punctuator, then assume that it is
|
||
|
|
// a part of the value
|
||
|
|
return (!characterParser.isPunctuator(str[x]) || quoteRe.test(str[x]) || str[x] === ':') && self.assertExpression(val, true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
// if there's no whitespace and the character is not ',', the
|
||
|
|
// attribute did not end.
|
||
|
|
return str[i] === ',' && self.assertExpression(val, true);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
for (var i = 0; i <= str.length; i++) {
|
||
|
|
if (isEndOfAttribute.call(this, i)) {
|
||
|
|
if (val.trim()) {
|
||
|
|
var saved = this.colno;
|
||
|
|
this.colno = colnoBeginVal;
|
||
|
|
this.assertExpression(val);
|
||
|
|
this.colno = saved;
|
||
|
|
}
|
||
|
|
|
||
|
|
val = val.trim();
|
||
|
|
|
||
|
|
key = key.trim();
|
||
|
|
key = key.replace(/^['"]|['"]$/g, '');
|
||
|
|
|
||
|
|
var tok = this.tok('attribute');
|
||
|
|
tok.name = key;
|
||
|
|
tok.val = '' == val ? true : val;
|
||
|
|
tok.col = colnoBeginAttr;
|
||
|
|
tok.mustEscape = escapedAttr;
|
||
|
|
this.tokens.push(tok);
|
||
|
|
|
||
|
|
key = val = '';
|
||
|
|
loc = 'key';
|
||
|
|
escapedAttr = false;
|
||
|
|
this.lineno = lineno;
|
||
|
|
} else {
|
||
|
|
switch (loc) {
|
||
|
|
case 'key-char':
|
||
|
|
if (str[i] === quote) {
|
||
|
|
loc = 'key';
|
||
|
|
if (i + 1 < str.length && !/[ ,!=\n\t]/.test(str[i + 1]))
|
||
|
|
this.error('INVALID_KEY_CHARACTER', 'Unexpected character "' + str[i + 1] + '" expected ` `, `\\n`, `\t`, `,`, `!` or `=`');
|
||
|
|
} else {
|
||
|
|
key += str[i];
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 'key':
|
||
|
|
if (key === '' && quoteRe.test(str[i])) {
|
||
|
|
loc = 'key-char';
|
||
|
|
quote = str[i];
|
||
|
|
} else if (str[i] === '!' || str[i] === '=') {
|
||
|
|
escapedAttr = str[i] !== '!';
|
||
|
|
if (str[i] === '!') {
|
||
|
|
this.incrementColumn(1);
|
||
|
|
i++;
|
||
|
|
}
|
||
|
|
if (str[i] !== '=') this.error('INVALID_KEY_CHARACTER', 'Unexpected character ' + str[i] + ' expected `=`');
|
||
|
|
loc = 'value';
|
||
|
|
colnoBeginVal = this.colno + 1;
|
||
|
|
state = characterParser.defaultState();
|
||
|
|
} else {
|
||
|
|
key += str[i]
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case 'value':
|
||
|
|
state = characterParser.parseChar(str[i], state);
|
||
|
|
val += str[i];
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (str[i] === '\n') {
|
||
|
|
// Save the line number locally to keep this.lineno at the start of
|
||
|
|
// the attribute.
|
||
|
|
lineno++;
|
||
|
|
this.colno = 1;
|
||
|
|
// If the key has not been started, update this.lineno immediately.
|
||
|
|
if (!key.trim()) this.lineno = lineno;
|
||
|
|
} else if (str[i] !== undefined) {
|
||
|
|
this.incrementColumn(1);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Reset the line numbers based on the line started on
|
||
|
|
// plus the number of newline characters encountered
|
||
|
|
this.lineno = startingLine + (str.match(/\n/g) || []).length;
|
||
|
|
|
||
|
|
this.tokens.push(this.tok('end-attributes'));
|
||
|
|
this.incrementColumn(1);
|
||
|
|
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.tokens.push(tok);
|
||
|
|
this.incrementColumn(consumed);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Indent | Outdent | Newline.
|
||
|
|
*/
|
||
|
|
|
||
|
|
indent: function() {
|
||
|
|
var captures = this.scanIndentation();
|
||
|
|
|
||
|
|
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.tok('newline');
|
||
|
|
}
|
||
|
|
|
||
|
|
// outdent
|
||
|
|
if (indents < this.indentStack[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.');
|
||
|
|
}
|
||
|
|
this.colno = this.indentStack[1] + 1;
|
||
|
|
this.tokens.push(this.tok('outdent'));
|
||
|
|
this.indentStack.shift();
|
||
|
|
}
|
||
|
|
// indent
|
||
|
|
} else if (indents && indents != this.indentStack[0]) {
|
||
|
|
this.tokens.push(this.tok('indent', indents));
|
||
|
|
this.colno = 1 + indents;
|
||
|
|
this.indentStack.unshift(indents);
|
||
|
|
// newline
|
||
|
|
} else {
|
||
|
|
this.tokens.push(this.tok('newline'));
|
||
|
|
this.colno = 1 + (this.indentStack[0] || 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
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.tok('start-pipeless-text'));
|
||
|
|
var tokens = [];
|
||
|
|
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 || !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) {
|
||
|
|
this.incrementLine(1);
|
||
|
|
if (i !== 0) this.tokens.push(this.tok('newline'));
|
||
|
|
this.incrementColumn(indents);
|
||
|
|
this.addText('text', token);
|
||
|
|
}.bind(this));
|
||
|
|
this.tokens.push(this.tok('end-pipeless-text'));
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Slash.
|
||
|
|
*/
|
||
|
|
|
||
|
|
slash: function() {
|
||
|
|
var tok = this.scan(/^\//, 'slash');
|
||
|
|
if (tok) {
|
||
|
|
this.tokens.push(tok);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
},
|
||
|
|
|
||
|
|
/**
|
||
|
|
* ':'
|
||
|
|
*/
|
||
|
|
|
||
|
|
colon: function() {
|
||
|
|
var tok = this.scan(/^: +/, ':');
|
||
|
|
if (tok) {
|
||
|
|
this.tokens.push(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('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;
|
||
|
|
}
|
||
|
|
};
|