I have a regex which is supposed to strip images out of HTML and replace them with
[image]
and if there's an ALT attribute for an image, replace it with
[image:"alt tag"]
my code is like this:
$html =~ s/<IMG.*?ALT="(\[^"\]*)"\[^>\]*>/\[image: "$1"\]/sgi;
but it doesn't work when it encounters an image without an alt tag --- it matches forward until it comes across an image tag which *does* have one.
So instead of:
<IMG SRC="foo"><BR>
bar bar bar<BR>
<IMG SRC="foo" alt="bar">
becoming
[image]<BR>
bar bar bar<BR>
[image: "bar"]
it matches everything including the text and I just get
[image: "bar"]
I need the /sgi options at the end due to the variability of the HTML, but how do I rewrite the regex
to make the matching of the ALT tag optional?
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.