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| author | Larry Wall <larry@wall.org> | 1998-07-24 05:44:33 +0000 |
|---|---|---|
| committer | Larry Wall <larry@wall.org> | 1998-07-24 05:44:33 +0000 |
| commit | a0ed51b321531af4b47cce24205ab9656f043f0f (patch) | |
| tree | 610356407b37a4041ea8bcaf44571579b2da5613 /pod/perlop.pod | |
| parent | 9332a1c1d80ded85a2b1f32b1c8968a35e3b0fbb (diff) | |
| download | perl-a0ed51b321531af4b47cce24205ab9656f043f0f.tar.gz | |
Here are the long-expected Unicode/UTF-8 modifications.
p4raw-id: //depot/utfperl@1651
Diffstat (limited to 'pod/perlop.pod')
| -rw-r--r-- | pod/perlop.pod | 20 |
1 files changed, 15 insertions, 5 deletions
diff --git a/pod/perlop.pod b/pod/perlop.pod index c7209fac28..35f9e5f4f8 100644 --- a/pod/perlop.pod +++ b/pod/perlop.pod @@ -636,7 +636,7 @@ next line. This allows you to write: For constructs that do interpolation, variables beginning with "C<$>" or "C<@>" are interpolated, as are the following sequences. Within -a transliteration, the first ten of these sequences may be used. +a transliteration, the first eleven of these sequences may be used. \t tab (HT, TAB) \n newline (NL) @@ -645,8 +645,9 @@ a transliteration, the first ten of these sequences may be used. \b backspace (BS) \a alarm (bell) (BEL) \e escape (ESC) - \033 octal char - \x1b hex char + \033 octal char (ESC) + \x1b hex char (ESC) + \x{263a} wide hex char (SMILEY) \c[ control char \l lowercase next char @@ -1138,9 +1139,9 @@ to occur. Here are two common cases: 1 while s/\t+/' ' x (length($&)*8 - length($`)%8)/e; -=item tr/SEARCHLIST/REPLACEMENTLIST/cds +=item tr/SEARCHLIST/REPLACEMENTLIST/cdsUC -=item y/SEARCHLIST/REPLACEMENTLIST/cds +=item y/SEARCHLIST/REPLACEMENTLIST/cdsUC Transliterates all occurrences of the characters found in the search list with the corresponding character in the replacement list. It returns @@ -1160,6 +1161,8 @@ Options: c Complement the SEARCHLIST. d Delete found but unreplaced characters. s Squash duplicate replaced characters. + U Translate to/from UTF-8. + C Translate to/from 8-bit char (octet). If the C</c> modifier is specified, the SEARCHLIST character set is complemented. If the C</d> modifier is specified, any characters specified @@ -1177,6 +1180,10 @@ enough. If the REPLACEMENTLIST is empty, the SEARCHLIST is replicated. This latter is useful for counting characters in a class or for squashing character sequences in a class. +The first C</U> or C</C> modifier applies to the left side of the translation. +The second one applies to the right side. If present, these modifiers override +the current utf8 state. + Examples: $ARGV[1] =~ tr/A-Z/a-z/; # canonicalize to lower case @@ -1196,6 +1203,9 @@ Examples: tr [\200-\377] [\000-\177]; # delete 8th bit + tr/\0-\xFF//CU; # translate Latin-1 to Unicode + tr/\0-\x{FF}//UC; # translate Unicode to Latin-1 + If multiple transliterations are given for a character, only the first one is used: tr/AAA/XYZ/ |