Re^2: Replace empty alt tag on <img> tag

Replies are listed 'Best First'.
Re^3: Replace empty alt tag on <img> tag by choroba (Cardinal) on Jan 20, 2022 at 12:18 UTC
Generally, no. `map{substr$_->[0],$_->[1]\|\|0,1}[\\|\|{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^ARGV,3]`	[reply] [d/l]
Re^4: Replace empty alt tag on <img> tag by The Perlman (Scribe) on Jan 20, 2022 at 16:42 UTC
Generally yes, at least since Perl regex are turing complete The real question should be: Is it possible with a simple regex? Answer: No. A regex parsing HTML wouldn't be less complex than a full scale HTML parser and consist of various nested sub expressions. Certainly not a one liner. - Ron	[reply]
Re^5: Replace empty alt tag on <img> tag by Fletch (Bishop) on Jan 20, 2022 at 19:32 UTC
Unless you're talking about mucking with specific bits of *ML text with specific, limited formatting that you know is never going to vary then even letting regexen enter anywhere near your thoughts is probably heading deep into now you have two problems territory. The cake is a lie. The cake is a lie. The cake is a lie.	[reply]
Re^5: Replace empty alt tag on <img> tag by Anonymous Monk on Jan 20, 2022 at 18:25 UTC
Generally yes Please do feel free to share your implementation.	[reply]
Re^3: Replace empty alt tag on <img> tag -- dont use a regex by Discipulus (Canon) on Jan 20, 2022 at 12:17 UTC
> can I do the same with regular expression?? no, Why a regex really isn't good enough for HTML and XML, even for "simple" tasks here at the monastery only tybalt89 owns a special permission to deal with HTML or XML using regular expressions L* There are no rules, there are no thumbs.. Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.	[reply] [d/l]
Re^4: Replace empty alt tag on <img> tag -- dont use a regex by eyepopslikeamosquito (Archbishop) on Jan 20, 2022 at 22:23 UTC
> here at the monastery only tybalt89 owns a special permission to deal with HTML or XML using regular expressions Agreed that tybalt89 has earned it. To nitpick though, I think TheDamian is also worthy of this special permission. The PPR module provides a single regular expression that defines a set of independent subpatterns suitable for matching entire Perl documents -- from PPR by TheDamian (as if you couldn't guess ;-) See also these comments by kcott and haukex, discussing the differences between PPR and PPI.	[reply]
Re^5: Replace empty alt tag on <img> tag -- dont use a regex (honorary mention) by LanX (Saint) on Jan 21, 2022 at 00:03 UTC
See also JSON parser as a single Perl Regex from TheRandal Cheers Rolf _{(addicted to the Perl Programming Language :) Wikisyntax for the Monastery}	[reply]