blob: 46249369224bc59043c571f1e8a2691d0e8038e9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/**
* @author Titus Wormer
* @copyright 2015 Titus Wormer
* @license MIT
* @module remark:parse:tokenize:emphasis
* @fileoverview Tokenise emphasis.
*/
'use strict';
var trim = require('trim');
var word = require('is-word-character');
var whitespace = require('is-whitespace-character');
var locate = require('../locate/emphasis');
module.exports = emphasis;
emphasis.locator = locate;
var C_ASTERISK = '*';
var C_UNDERSCORE = '_';
/* Tokenise emphasis. */
function emphasis(eat, value, silent) {
var self = this;
var index = 0;
var character = value.charAt(index);
var now;
var pedantic;
var marker;
var queue;
var subvalue;
var length;
var prev;
if (character !== C_ASTERISK && character !== C_UNDERSCORE) {
return;
}
pedantic = self.options.pedantic;
subvalue = character;
marker = character;
length = value.length;
index++;
queue = '';
character = '';
if (pedantic && whitespace(value.charAt(index))) {
return;
}
while (index < length) {
prev = character;
character = value.charAt(index);
if (character === marker && (!pedantic || !whitespace(prev))) {
character = value.charAt(++index);
if (character !== marker) {
if (!trim(queue) || prev === marker) {
return;
}
if (!pedantic && marker === C_UNDERSCORE && word(character)) {
queue += marker;
continue;
}
/* istanbul ignore if - never used (yet) */
if (silent) {
return true;
}
now = eat.now();
now.column++;
now.offset++;
return eat(subvalue + queue + marker)({
type: 'emphasis',
children: self.tokenizeInline(queue, now)
});
}
queue += marker;
}
if (!pedantic && character === '\\') {
queue += character;
character = value.charAt(++index);
}
queue += character;
index++;
}
}
|
