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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
|
var fs = require('fs');
var marked = require('marked');
var path = require('path');
module.exports = toHTML;
function toHTML(input, filename, template, cb) {
var lexed = marked.lexer(input);
fs.readFile(template, 'utf8', function(er, template) {
if (er) return cb(er);
render(lexed, filename, template, cb);
});
}
function render(lexed, filename, template, cb) {
// get the section
var section = getSection(lexed);
filename = path.basename(filename, '.markdown');
lexed = parseLists(lexed);
// generate the table of contents.
// this mutates the lexed contents in-place.
buildToc(lexed, filename, function(er, toc) {
if (er) return cb(er);
template = template.replace(/__FILENAME__/g, filename);
template = template.replace(/__SECTION__/g, section);
template = template.replace(/__VERSION__/g, process.version);
template = template.replace(/__TOC__/g, toc);
// content has to be the last thing we do with
// the lexed tokens, because it's destructive.
content = marked.parser(lexed);
template = template.replace(/__CONTENT__/g, content);
cb(null, template);
});
}
// just update the list item text in-place.
// lists that come right after a heading are what we're after.
function parseLists(input) {
var state = null;
var depth = 0;
var output = [];
output.links = input.links;
input.forEach(function(tok) {
if (state === null) {
if (tok.type === 'heading') {
state = 'AFTERHEADING';
}
output.push(tok);
return;
}
if (state === 'AFTERHEADING') {
if (tok.type === 'code') return;
if (tok.type === 'list_start') {
state = 'LIST';
if (depth === 0) {
output.push({ type:'html', text: '<div class="signature">' });
}
depth++;
output.push(tok);
return;
}
state = null;
output.push(tok);
return;
}
if (state === 'LIST') {
if (tok.type === 'list_start') {
depth++;
output.push(tok);
return;
}
if (tok.type === 'list_end') {
depth--;
if (depth === 0) {
state = null;
output.push({ type:'html', text: '</div>' });
}
output.push(tok);
return;
}
if (tok.text) {
tok.text = parseListItem(tok.text);
}
}
output.push(tok);
});
return output;
}
function parseListItem(text) {
text = text.replace(/\{([^\}]+)\}/, '<span class="type">$1</span>');
//XXX maybe put more stuff here?
return text;
}
// section is just the first heading
function getSection(lexed) {
var section = '';
for (var i = 0, l = lexed.length; i < l; i++) {
var tok = lexed[i];
if (tok.type === 'heading') return tok.text;
}
return '';
}
function buildToc(lexed, filename, cb) {
var indent = 0;
var toc = [];
var depth = 0;
lexed.forEach(function(tok) {
if (tok.type !== 'heading') return;
if (tok.depth - depth > 1) {
return cb(new Error('Inappropriate heading level\n' +
JSON.stringify(tok)));
}
depth = tok.depth;
var id = getId(filename + '_' + tok.text.trim());
toc.push(new Array((depth - 1) * 2 + 1).join(' ') +
'* <a href="#' + id + '">' +
tok.text + '</a>');
tok.text += '<span><a class="mark" href="#' + id + '" ' +
'id="' + id + '">#</a></span>';
});
toc = marked.parse(toc.join('\n'));
cb(null, toc);
}
var idCounters = {};
function getId(text) {
text = text.toLowerCase();
text = text.replace(/[^a-z0-9]+/g, '_');
text = text.replace(/^_+|_+$/, '');
text = text.replace(/^([^a-z])/, '_$1');
if (idCounters.hasOwnProperty(text)) {
text += '_' + (++idCounters[text]);
} else {
idCounters[text] = 0;
}
return text;
}
|
