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bug#63272: 29.0.90; xref fails on long lines
From: |
Dmitry Gutov |
Subject: |
bug#63272: 29.0.90; xref fails on long lines |
Date: |
Fri, 5 May 2023 23:49:14 +0300 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 |
On 05/05/2023 20:50, Juri Linkov wrote:
In the real case the prefix and suffix were unique, so I didn't expect
that in a generated file there was a very long distance between prefix
and suffix. To limit the distance between prefix and suffix I tried:
C-x p g prefix.{0,100}suffix
Try escaping { and }:
C-x p g prefix.\{0,100\}suffix
The regexp needs to use the syntax that Emacs can understand.
Just the subset of it that can be translated to command like, so that
Grep and Ripgrep can work with it too.
but xref that uses ripgrep fails to find matches.
So needed to fall back to ripgrep-based rgrep in this case:
M-x rgrep prefix.{0,100}suffix
that works successfully.
It seems the problem is because of different regexp syntax
used by ripgrep and re-search-forward in xref--collect-matches-1.
The conversion is performed by xref--regexp-to-extended.
bug#63272: 29.0.90; xref fails on long lines, Gregory Heytings, 2023/05/04