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;regex doc tweaks

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Simon Michael 2020-05-10 13:15:15 -07:00
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commit 4706b8cb00
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hledger/hledger.m4.md
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@ -837,7 +837,7 @@ If they're not doing what you expect, it's important to know exactly what they s
#. they do not support [backreferences][]; if you write `\1`, it will match the digit `1`. #. they do not support [backreferences][]; if you write `\1`, it will match the digit `1`.
Except when doing text replacement, eg in [account aliases](journal.html#regex-aliases), Except when doing text replacement, eg in [account aliases](journal.html#regex-aliases),
where [backreferences][] can be used in the replacement string to reference [capturing groups][] in the search regexp. where [backreferences][] can be used in the replacement string to reference [capturing groups][] in the search regexp.
#. they do not support [mode modifiers][] (`(?s)`), character classes (`\w`, `\d`), or anything else. #. they do not support [mode modifiers][] (`(?s)`), character classes (`\w`, `\d`), or anything else not mentioned above.
[POSIX ERE]: http://www.regular-expressions.info/posix.html#ere [POSIX ERE]: http://www.regular-expressions.info/posix.html#ere
[backreferences]: https://www.regular-expressions.info/backref.html [backreferences]: https://www.regular-expressions.info/backref.html