Hi wise ones
I am looking for a regex that can take a comma separated line of ranges. Something like '1-5, 20-250, 37000-41000'
Regex needs to follow these rules:
1. should be able to take any number of ranges. For example" '1-25' would work. So would '1-25,67-324'. So would '1-15, 76-102, 56-98'
2. should be able to handle spaces between ranges
3. should fail if there are decimals, or non-digits in range: '1-25,28-43.5' should fail. '1-2a, 45-98' should fail.
Any tips much appreciated. My biggest hurdle is trying to figure out how to match a pattern against a string of indeterminate length/content.
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.