Filters by regexp

[aspell-helper]

Mitraotor <mitraotor@sf> created a feature request on 2006-06-16 10:05:42 UTC
(Orig. from https://sourceforge.net/p/aspell/feature-requests/48)

Good day.

Thank you for aspell's developing!

Spellchecking of some special file formats is hard to
novices. Let's view on PHP file:
------

<html_tag attrib="Value to spellcheck (3)">Text to
spellcheck (4)
... and so on ...
------
How to spellcheck regions (1)-(4) selectively in any
combinations? E.g. PHP comments and HTML text? Or
ignore PHP code completely?

I've failed to force exclude PHP by:
------
MODE php
FILTER context
OPTION clear-context-delimiters
OPTION add-context-delimiters
OPTION add-context-delimiters " "
OPTION disable-context-visible-first
------

It would be great aspell woulda allows filters
configuration via regexp.

And following filter options are highly desirable:
- allowed context (e.g. "" = only in PHP)
- disallowed context (e.g. "" = exclude PHP)
- allowed chars (e.g. to check latin only)
- disallowed chars (e.g. to ignore latin)
- allowed word patterns
- disallowed word patterns (e.g. to ignore hex numbers)
- pre-spelling string/regex replaces (e.g. to
reconstruct hyphenated words)

My apologies, if any of this has been already
implemented, but filter options aren't documented
enough.

[reitzig]

Yes, please.

I'm trying to spellcheck AsciiDoc. The suggestion is implement a "straight-forward" filter implementation; looking at the Markdown filter, I see 1k+ lines of C++. Nope.

For my (limited) use case, I only need to imitate the effect of

sed -e '/\.\.\.\./,/\.\.\.\./d' -e 's/`+.\++`//g' file

to get rid of code blocks; maybe a couple similar patterns will come along. It would be great if aspell could consume a similar list of replacement/ignore patterns.