this post was submitted on 05 Mar 2025
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It's not about the syntax itself, it's about which syntax to use. There are different ones and remembering which one is for which language is tough.
This is exactly it. Regex is super simple. The difficulty is maintaining a mental mapping between language/util <-> regex engine <-> engine syntax & character class names. It gets worse when utils also conditionally enable extended syntaxes with flags or options.
The hardest part is remembering whether you need to use
\wor[:alnum:].Way too few utils actually mention which syntax they use too. Most just say something accepts a "regular expression", which is totally ambiguous.
I give you that, true. I wish vim had PCRE
There is the "very magic" mode for vim regexes. It's not the exact PCRE syntax, but it's pretty close. You only need to add \v before the expression to use it. There is no permanent mode / option though. (I think you can remap the commands, like / to /\v)
This is exactly it. Regex is super simple. The difficulty is maintaining a mental mapping between language/util <-> regex engine <-> engine syntax & character class names. It gets worse when utils also conditionally enable extended syntaxes with flags or options.
The hardest part is remembering whether you need to use
\wor[:alnum:].Way too few utils actually mention which syntax they use too. Most just say something accepts a "regular expression", which is totally ambiguous.
This is exactly it. Regex is super simple. The difficulty is maintaining a mental mapping between language/util <-> regex engine <-> engine syntax & character class names. It gets worse when utils also conditionally enable extended syntaxes with flags or options.
The hardest part is remembering whether you need to use
\wor[:alnum:].Way too few utils actually mention which syntax they use too. Most just say something accepts a "regular expression", which is totally ambiguous.
This is exactly it. Regex is super simple. The difficulty is maintaining a mental mapping between language/util <-> regex engine <-> engine syntax & character class names. It gets worse when utils also conditionally enable extended syntaxes with flags or options.
The hardest part is remembering whether you need to use
\wor[:alnum:].Way too few utils actually mention which syntax they use too. Most just say something accepts a "regular expression", which is totally ambiguous.