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
|
(function (Prism) {
Prism.languages.diff = {
coord: [
// Match all kinds of coord lines (prefixed by "+++", "---" or "***").
/^(?:\*{3}|-{3}|\+{3}).*$/m,
// Match "@@ ... @@" coord lines in unified diff.
/^@@.*@@$/m,
// Match coord lines in normal diff (starts with a number).
/^\d.*$/m,
],
// deleted, inserted, unchanged, diff
};
/**
* A map from the name of a block to its line prefix.
*
* @type {Object<string, string>}
*/
var PREFIXES = {
'deleted-sign': '-',
'deleted-arrow': '<',
'inserted-sign': '+',
'inserted-arrow': '>',
unchanged: ' ',
diff: '!',
};
// add a token for each prefix
Object.keys(PREFIXES).forEach(function (name) {
var prefix = PREFIXES[name];
var alias = [];
if (!/^\w+$/.test(name)) {
// "deleted-sign" -> "deleted"
alias.push(/\w+/.exec(name)[0]);
}
if (name === 'diff') {
alias.push('bold');
}
Prism.languages.diff[name] = {
pattern: RegExp('^(?:[' + prefix + '].*(?:\r\n?|\n|(?![\\s\\S])))+', 'm'),
alias: alias,
inside: {
line: {
pattern: /(.)(?=[\s\S]).*(?:\r\n?|\n)?/,
lookbehind: true,
},
prefix: {
pattern: /[\s\S]/,
alias: /\w+/.exec(name)[0],
},
},
};
});
// make prefixes available to Diff plugin
Object.defineProperty(Prism.languages.diff, 'PREFIXES', {
value: PREFIXES,
});
})(Prism);
|
