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New posts in backreference
How to re-use a capturing group to match a different alternation choice?
Mar 07, 2026
regex
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vim substitute backslash
Mar 01, 2026
vim
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Perl pattern match variable question
Jan 27, 2026
regex
perl
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in-place backreferencing with sed
Jan 24, 2026
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sed
backreference
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Use the backreference in a regex to replace a text dynamically
Dec 19, 2025
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regex
backreference
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grep- why must there be word boundaries around back references?
Dec 08, 2025
bash
grep
backreference
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Replace characters using regex grouping with sed
Dec 07, 2025
regex
sed
grouping
backreference
Javascript regexp: Using variables in backreference pattern?
Dec 03, 2025
javascript
regex
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sed - Back reference on match pattern does not work
Oct 20, 2025
regex
macos
sed
backreference
Match uneven number of escape symbols
Oct 19, 2025
regex
pcre
backreference
Named backreference (?P=name) issue in Python re
Oct 14, 2025
python
python-3.x
regex
python-re
backreference
Vim / sed regex backreference in search pattern
Sep 07, 2025
regex
vim
sed
backreference
capturing-group
Matching incremental digits in numbers
Mar 20, 2023
regex
backreference
capturing-group
Use previous backreference as name of named capture group
Jan 31, 2023
php
regex
pcre
regex-group
backreference
Problem with RewriteCond %{QUERY_STRING}, backreference not dispaying in final URL
Jan 24, 2023
mod-rewrite
backreference
query-string
wrap <b>-tag around first word of string with preg_replace
Dec 13, 2022
php
regex
preg-replace
backreference
How to use back reference with stringi package?
Oct 30, 2020
r
backreference
stringi
How to replace exact number of characters in string based on occurrence between delimitors in R
Aug 30, 2022
r
regex
backreference
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