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UNIX Regular Expression
Definition
[^char-set]
Matches any character not specified by char-set.
A dash (-) character may be used to specify ranges.
A dash (-) character may be used to specify ranges.
[char-set1 - [char-set2]]
Character set subtraction. Matches all characters in
char-set1
except the characters in char-set2.
The expression [^A-Z] matches all characters ex-
cept uppercase letters. For example, [a-z-[qw]]
matches all English lowercase letters except q and
w. [\p{L}-[qw]] matches all Unicode lowercase let-
ters except q and w.
cept uppercase letters. For example, [a-z-[qw]]
matches all English lowercase letters except q and
w. [\p{L}-[qw]] matches all Unicode lowercase let-
ters except q and w.
[char-set1 & [char-set2]
Character set intersection. Matches all characters in
char-set1
that are also in char-set2. For ex-
ample, [\x{0}-\x{7f}&[\p{L}]] matches all letters
between 0 and 127.
between 0 and 127.
\x{hhhh}
Matches up to 31-bit Unicode hexadecimal charac-
ter specified by hhhh.
ter specified by hhhh.
\p{UnicodeCategorySpec]
(Only valid in character set) Matches characters in
UnicodeCategorySpec
. Where UnicodeCat-
egorySpec
uses the standard general categories
specified by the Unicode consortium. For example,
[\p{L}] matches all letters. [\p{Lu}] matches all up-
percase letters. See
[\p{L}] matches all letters. [\p{Lu}] matches all up-
percase letters. See
\P{UnicodeCategorySpec]
(Only valid in character set) Matches characters not
in UnicodeCategorySpec. For example, [\P{L}]
matches all characters that are not letters. This is
equivalent to [^\p{L}]. [\P{Lu}] matches all charac-
ters that are not uppercase letters. See
in UnicodeCategorySpec. For example, [\P{L}]
matches all characters that are not letters. This is
equivalent to [^\p{L}]. [\P{Lu}] matches all charac-
ters that are not uppercase letters. See
.
\p{UnicodeIsBlockSpec]
(Only valid in character set) Matches characters in
UnicodeIsBlockSpec
. Where UnicodeIsB-
lockSpec
one of the standard character blocks
specified by the Unicode consortium. For example,
[\p{isGreek}] matches Unicode characters in the
Greek block. See
[\p{isGreek}] matches Unicode characters in the
Greek block. See
.
\P{UnicodeIsBlockSpec]
(Only valid in character set) Matches characters not
in UnicodeIsBlockSpec. For example,
[\P{isGreek}] matches all characters that are not in
in UnicodeIsBlockSpec. For example,
[\P{isGreek}] matches all characters that are not in
UNIX Regular Expressions
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