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zero width

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Technology› Programming

Perl

A subpattern "assertion" matching the "null string" between characters.

Perl — Perl Glossary

Related Perl terms

assertion
Atom
backreference
backtracking
fileglob
glob
greedy
leftmost longest
lookahead
lookbehind
Matching
pattern
Pattern Matching
progressive matching
regular expression
run-time pattern

Nearby Perl terms

variable interpolation
variadic
vector
virtual
void context
Warning
watch expression
whitespace
word
working directory
wrapper
WYSIWYG
XS
XSUB
yacc
zero width
Zombie

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Definitions are reproduced with attribution to their original sources; each entry links to the source and shows when it was retrieved. About · FAQ · Data build 2026-10-15.