regex-search

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regex-replace	Command Reference	release-notes

Epsilon User's Manual and Reference > Command Reference >

regex-search

Search for a string after point.

Ctrl-Alt-s

The command prompts for a regular expression, then positions point after the next match of that pattern. If no such match exists, a message appears in the echo area.

pat1|pat2: matches either pat1 or pat2.
pat*: matches zero or more matches of pat.
pat+: matches one or more matches of pat.
pat?: matches zero or one matches of pat.
[abx]: matches any of the characters a, b, or x.
[^abx]: matches any but a, b, or x.
[a-z3]: matches a, b, c, ... z, or 3.
.: matches any character except newline.
( ): group patterns for +, *, ?, and |.
^: only matches at the beginning of a line.
$: only matches at the end of a line.
<#50>: means the character with ASCII code 50.
%: removes the special meaning from the following character, so that %$ matches only $.
!: marks the end of the match.

More info:

Searching
Regular Expressions
Regular Expression Commands

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regex-replace Command Reference release-notes