match.js/README at master · marcusphillips/match.js · GitHub

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
/*
 * Match - Readable Expressions for JavaScript
 * Copyright 2010, Marcus Phillips
 * marcus@readableexpressions.com
 *
 *
 * *** Licensing Information ***
 * Licensed under the GPL Version 2 license
 *
 *
 * *** Purpose ***
 * Match provides a more accesible alternative to the syntax of Regular Expression literals
 *
 *
 * *** Example usage ***
 * see qombat.m.examples.js
 *
 *
 * *** Todo ***
 * \xxx   Find the ASCII character expressed by the octal number xxx  1   4   4
 * \xdd   Find the ASCII character expressed by the hex number dd   1   4   4
 * \uxxxx   Find the ASCII character expressed by the UNICODE xxxx  1   4   4
 * lookahead()
 */


// * *** Example usage ***

  // roughly equivalent to /^[-0-9A-z._+&]+@(?:[-0-9A-z]+\.)+[A-z]{2,6}\.?$/i
  email_matcher = M(
    M.beginning,

    M.some(
      M.or(
        M.alphanumerics, '-', '.', '_', '+', '&'
      )
    ),
    '@',
    M.some(
      M.some(
        M.or(
          M.alphanumerics,
          '-'
        )
      ),
      '.'
    ),
    M.between(2, 6,
      M.alphas
    ),

    M.maybe('.'),
    M.end,
    M.insensitive
  );


  // equivalent to /<([A-z][0-9A-z]*)\b[^>]*>[^]*<\/\1>/
  html_tag_matcher = M(
    '<',
      M.grouping(
        M.alphas,M.any(M.alphanumerics)
      ),
      M.boundary,
      M.any( M.nor('>') ),
    '>',
      M.any(),
    '</',
      M.backreference(1),
    '>'
  );