Hi Discipulus
tybalt89 is combining the \G meta with //gc modifiers
- \G achors the search at the pos where the last regex left off
- unless you used the //c modifier, the pos of a previous regex was erased when it didn't match
This allows to split a big complicated regex into multiple perl statements.
And after combining with recursive calls this permits to parse nested structures.
See perldocs for examples and details of this technique (e.g. perlretut ) or Friedl's Regex Book.
Or even better older threads in the monastery :)
You shouldn't be despaired, the demonstrated code is neither easy to read nor maintain.
It should better use //x modifiers and more comments, but obfuscated wizardry is of course cooler! ;-))
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
|
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.