mirror of
git://git.code.sf.net/p/zsh/code
synced 2024-10-01 16:31:53 +02:00
47 lines
1.4 KiB
Plaintext
47 lines
1.4 KiB
Plaintext
COMMENT(!MOD!zsh/pcre
|
|
Interface to the PCRE library.
|
|
!MOD!)
|
|
cindex(regular expressions, perl-compatible)
|
|
The tt(zsh/pcre) module makes some commands available as builtins:
|
|
|
|
startitem()
|
|
findex(pcre_compile)
|
|
item(tt(pcre_compile) [ tt(-aimx) ] var(PCRE))(
|
|
Compiles a perl-compatible regular expression.
|
|
|
|
Option tt(-a) will force the pattern to be anchored.
|
|
Option tt(-i) will compile a case-insensitive pattern.
|
|
Option tt(-m) will compile a multi-line pattern; that is,
|
|
tt(^) and tt($) will match newlines within the pattern.
|
|
Option tt(-x) will compile an extended pattern, wherein
|
|
whitespace and tt(#) comments are ignored.
|
|
)
|
|
findex(pcre_study)
|
|
item(tt(pcre_study))(
|
|
Studies the previously-compiled PCRE which may result in faster
|
|
matching.
|
|
)
|
|
findex(pcre_match)
|
|
item(tt(pcre_match) [ tt(-a) var(arr) ] var(string))(
|
|
Returns successfully if tt(string) matches the previously-compiled
|
|
PCRE.
|
|
|
|
If the expression captures substrings within parentheses,
|
|
tt(pcre_match) will set the array var($match) to those
|
|
substrings, unless the tt(-a) option is given, in which
|
|
case it will set the array var(arr).
|
|
)
|
|
enditem()
|
|
|
|
The tt(zsh/pcre) module makes available the following test condition:
|
|
startitem()
|
|
findex(pcre-match)
|
|
item(expr tt(-pcre-match) pcre)(
|
|
Matches a string against a perl-compatible regular expression.
|
|
|
|
For example,
|
|
|
|
[[ "$text" -pcre-match ^d+$ ]] && print text variable contains only "d's".
|
|
)
|
|
enditem()
|