use v5.16.0;
use strict;
use warnings;
-require 'regen/regen_lib.pl';
+require './regen/regen_lib.pl';
+require './regen/charset_translations.pl';
+use Unicode::UCD;
use charnames qw(:loose);
my $out_fh = open_new('unicode_constants.h', '>',
- {style => '*', by => $0,
+ {style => '*', by => $0,
from => "Unicode data"});
print $out_fh <<END;
-#ifndef H_UNICODE_CONSTANTS /* Guard against nested #includes */
-#define H_UNICODE_CONSTANTS 1
+#ifndef PERL_UNICODE_CONSTANTS_H_ /* Guard against nested #includes */
+#define PERL_UNICODE_CONSTANTS_H_ 1
-/* This file contains #defines for various Unicode code points. The values
- * the macros expand to are the native Unicode code point, or all or portions
- * of the UTF-8 encoding for the code point. In the former case, the macro
- * name has the suffix "_NATIVE"; otherwise, the suffix "_UTF8".
+/* This file contains #defines for the version of Unicode being used and
+ * various Unicode code points. The values the code point macros expand to
+ * are the native Unicode code point, or all or portions of the UTF-8 encoding
+ * for the code point. In the former case, the macro name has the suffix
+ * "_NATIVE"; otherwise, the suffix "_UTF8".
*
* The macros that have the suffix "_UTF8" may have further suffixes, as
* follows:
* "_TAIL" if instead it represents all but the first byte. This, and
* with no additional suffix are both string constants */
+/*
+=for apidoc_section Unicode Support
+
+=for apidoc AmnU|const char *|BOM_UTF8
+
+This is a macro that evaluates to a string constant of the UTF-8 bytes that
+define the Unicode BYTE ORDER MARK (U+FEFF) for the platform that perl
+is compiled on. This allows code to use a mnemonic for this character that
+works on both ASCII and EBCDIC platforms.
+S<C<sizeof(BOM_UTF8) - 1>> can be used to get its length in
+bytes.
+
+=for apidoc AmnU|const char *|REPLACEMENT_CHARACTER_UTF8
+
+This is a macro that evaluates to a string constant of the UTF-8 bytes that
+define the Unicode REPLACEMENT CHARACTER (U+FFFD) for the platform that perl
+is compiled on. This allows code to use a mnemonic for this character that
+works on both ASCII and EBCDIC platforms.
+S<C<sizeof(REPLACEMENT_CHARACTER_UTF8) - 1>> can be used to get its length in
+bytes.
+
+=cut
+*/
+
END
-# The data are at the end of this file. A blank line is output as-is.
-# Otherwise, each line represents one #define, and begins with either a
-# Unicode character name with the blanks in it squeezed out or replaced by
-# underscores; or it may be a hexadecimal Unicode code point. In the latter
+my $version = Unicode::UCD::UnicodeVersion();
+my ($major, $dot, $dotdot) = $version =~ / (.*?) \. (.*?) (?: \. (.*) )? $ /x;
+$dotdot = 0 unless defined $dotdot;
+
+print $out_fh <<END;
+#define UNICODE_MAJOR_VERSION $major
+#define UNICODE_DOT_VERSION $dot
+#define UNICODE_DOT_DOT_VERSION $dotdot
+
+END
+
+# The data are at __DATA__ in this file.
+
+my @data = <DATA>;
+
+foreach my $charset (get_supported_code_pages()) {
+ print $out_fh "\n" . get_conditional_compile_line_start($charset);
+
+ my @a2n = @{get_a2n($charset)};
+
+ for ( @data ) {
+ chomp;
+
+ # Convert any '#' comments to /* ... */; empty lines and comments are
+ # output as blank lines
+ if ($_ =~ m/ ^ \s* (?: \# ( .* ) )? $ /x) {
+ my $comment_body = $1 // "";
+ if ($comment_body ne "") {
+ print $out_fh "/* $comment_body */\n";
+ }
+ else {
+ print $out_fh "\n";
+ }
+ next;
+ }
+
+ unless ($_ =~ m/ ^ ( [^\ ]* ) # Name or code point token
+ (?: [\ ]+ ( [^ ]* ) )? # optional flag
+ (?: [\ ]+ ( .* ) )? # name if unnamed; flag is required
+ /x)
+ {
+ die "Unexpected syntax at line $.: $_\n";
+ }
+
+ my $name_or_cp = $1;
+ my $flag = $2;
+ my $desired_name = $3;
+
+ my $name;
+ my $cp;
+ my $U_cp; # code point in Unicode (not-native) terms
+
+ if ($name_or_cp =~ /^U\+(.*)/) {
+ $U_cp = hex $1;
+ $name = charnames::viacode($name_or_cp);
+ if (! defined $name) {
+ next if $flag =~ /skip_if_undef/;
+ die "Unknown code point '$name_or_cp' at line $.: $_\n" unless $desired_name;
+ $name = "";
+ }
+ }
+ else {
+ $name = $name_or_cp;
+ die "Unknown name '$name' at line $.: $_\n" unless defined $name;
+ $U_cp = charnames::vianame($name =~ s/_/ /gr);
+ }
+
+ $cp = ($U_cp < 256)
+ ? $a2n[$U_cp]
+ : $U_cp;
+
+ $name = $desired_name if $name eq "" && $desired_name;
+ $name =~ s/[- ]/_/g; # The macro name can have no blanks nor dashes
+
+ my $str;
+ my $suffix;
+ if (defined $flag && $flag eq 'native') {
+ die "Are you sure you want to run this on an above-Latin1 code point?" if $cp > 0xff;
+ $suffix = '_NATIVE';
+ $str = sprintf "0x%02X", $cp; # Is a numeric constant
+ }
+ else {
+ $str = join "", map { sprintf "\\x%02X", ord $_ } split //, cp_2_utfbytes($U_cp, $charset);
+
+ $suffix = '_UTF8';
+ if (! defined $flag || $flag =~ /^ string (_skip_if_undef)? $/x) {
+ $str = "\"$str\""; # Will be a string constant
+ } elsif ($flag eq 'tail') {
+ $str =~ s/\\x..//; # Remove the first byte
+ $suffix .= '_TAIL';
+ $str = "\"$str\""; # Will be a string constant
+ }
+ elsif ($flag eq 'first') {
+ $str =~ s/ \\x ( .. ) .* /$1/x; # Get the two nibbles of the 1st byte
+ $suffix .= '_FIRST_BYTE';
+ $str = "0x$str"; # Is a numeric constant
+ }
+ else {
+ die "Unknown flag at line $.: $_\n";
+ }
+ }
+ printf $out_fh "# define %s%s %s /* U+%04X */\n", $name, $suffix, $str, $U_cp;
+ }
+
+ my $max_PRINT_A = 0;
+ for my $i (0x20 .. 0x7E) {
+ $max_PRINT_A = $a2n[$i] if $a2n[$i] > $max_PRINT_A;
+ }
+ printf $out_fh "# define MAX_PRINT_A_FOR_USE_ONLY_BY_REGCOMP_DOT_C 0x%02X /* The max code point that isPRINT_A */\n", $max_PRINT_A;
+
+ print $out_fh "\n" . get_conditional_compile_line_end();
+
+}
+
+use Unicode::UCD 'prop_invlist';
+
+my $count = 0;
+my @other_invlist = prop_invlist("Other");
+for (my $i = 0; $i < @other_invlist; $i += 2) {
+ $count += ((defined $other_invlist[$i+1])
+ ? $other_invlist[$i+1]
+ : 0x110000)
+ - $other_invlist[$i];
+}
+printf $out_fh "\n/* The number of code points not matching \\pC */\n"
+ . "#define NON_OTHER_COUNT_FOR_USE_ONLY_BY_REGCOMP_DOT_C %d\n",
+ 0x110000 - $count;
+
+# If this release has both the CWCM and CWCF properties, find the highest code
+# point which changes under any case change. We can use this to short-circuit
+# code
+my @cwcm = prop_invlist('CWCM');
+if (@cwcm) {
+ my @cwcf = prop_invlist('CWCF');
+ if (@cwcf) {
+ my $max = ($cwcm[-1] < $cwcf[-1])
+ ? $cwcf[-1]
+ : $cwcm[-1];
+ printf $out_fh "\n/* The highest code point that has any type of case change */\n"
+ . "#define HIGHEST_CASE_CHANGING_CP_FOR_USE_ONLY_BY_UTF8_DOT_C 0x%X\n",
+ $max - 1;
+ }
+}
+
+print $out_fh "\n#endif /* PERL_UNICODE_CONSTANTS_H_ */\n";
+
+read_only_bottom_close_and_rename($out_fh);
+
+# DATA FORMAT
+#
+# Note that any apidoc comments you want in the file need to be added to one
+# of the prints above
+#
+# A blank line is output as-is.
+# Comments (lines whose first non-blank is a '#') are converted to C-style,
+# though empty comments are converted to blank lines. Otherwise, each line
+# represents one #define, and begins with either a Unicode character name with
+# the blanks and dashes in it squeezed out or replaced by underscores; or it
+# may be a hexadecimal Unicode code point of the form U+xxxx. In the latter
# case, the name will be looked-up to use as the name of the macro. In either
-# case, the macro name will have suffixes as listed above, and all blanks will
-# be replaced by underscores.
+# case, the macro name will have suffixes as listed above, and all blanks and
+# dashes will be replaced by underscores.
#
# Each line may optionally have one of the following flags on it, separated by
# white space from the initial token.
# string indicates that the output is to be of the string form
# described in the comments above that are placed in the file.
+# string_skip_ifundef is the same as 'string', but instead of dying if the
+# code point doesn't exist, the line is just skipped: no output is
+# generated for it
# first indicates that the output is to be of the FIRST_BYTE form.
# tail indicates that the output is of the _TAIL form.
# native indicates that the output is the code point, converted to the
# platform's native character set if applicable
#
+# If the code point has no official name, the desired name may be appended
+# after the flag, which will be ignored if there is an official name.
+#
# This program is used to make it convenient to create compile time constants
# of UTF-8, and to generate proper EBCDIC as well as ASCII without manually
# having to figure things out.
-while ( <DATA> ) {
- if ($_ !~ /\S/) {
- print $out_fh "\n";
- next;
- }
-
- chomp;
- unless ($_ =~ m/ ^ ( [^\ ]* ) # Name or code point token
- (?: [\ ]+ ( .* ) )? # optional flag
- /x)
- {
- die "Unexpected syntax at line $.: $_\n";
- }
-
- my $name_or_cp = $1;
- my $flag = $2;
+__DATA__
+U+017F string
- my $name;
- my $cp;
+U+0300 string
+U+0307 string
- if ($name_or_cp =~ /[^[:xdigit:]]/) {
+U+1E9E string_skip_if_undef
- # Anything that isn't a hex value must be a name.
- $name = $name_or_cp;
- $cp = charnames::vianame($name =~ s/_/ /gr);
- die "Unknown name '$name' at line $.: $_\n" unless defined $name;
- }
- else {
- $cp = $name_or_cp;
- $name = charnames::viacode("0$cp"); # viacode requires a leading zero
- # to be sure that the argument is hex
- die "Unknown code point '$cp' at line $.: $_\n" unless defined $cp;
- }
+U+FB05 string
+U+FB06 string
+U+0130 string
+U+0131 string
- $name =~ s/ /_/g; # The macro name can have no blanks in it
+U+2010 string
+BOM first
+BOM tail
- my $str = join "", map { sprintf "\\x%02X", $_ }
- unpack("U0C*", pack("U", hex $cp));
+BOM string
- my $suffix = '_UTF8';
- if (! defined $flag || $flag eq 'string') {
- $str = "\"$str\""; # Will be a string constant
- } elsif ($flag eq 'tail') {
- $str =~ s/\\x..//; # Remove the first byte
- $suffix .= '_TAIL';
- $str = "\"$str\""; # Will be a string constant
- }
- elsif ($flag eq 'first') {
- $str =~ s/ \\x ( .. ) .* /$1/x; # Get the two nibbles of the 1st byte
- $suffix .= '_FIRST_BYTE';
- $str = "0x$str"; # Is a numeric constant
- }
- elsif ($flag eq 'native') {
- die "Are you sure you want to run this on an above-Latin1 code point?" if hex $cp > 0xff;
- $suffix = '_NATIVE';
- $str = utf8::unicode_to_native(hex $cp);
- $str = "0x$cp"; # Is a numeric constant
- }
- else {
- die "Unknown flag at line $.: $_\n";
- }
- print $out_fh "#define ${name}$suffix $str /* U+$cp */\n";
-}
+U+FFFD string
-print $out_fh "\n#endif /* H_UNICODE_CONSTANTS */\n";
+U+10FFFF string MAX_UNICODE
-read_only_bottom_close_and_rename($out_fh);
+NBSP native
+NBSP string
-__DATA__
-0300 string
-0301 string
-0308 string
-
-03B9 first
-03B9 tail
-
-03C5 first
-03C5 tail
-
-1100
-1160
-11A8
-2010 string
-
-007F native
-00DF native
-00E5 native
-00C5 native
-00FF native
-00B5 native
-0085 native
+DEL native
+CR native
+LF native
+VT native
+ESC native
+U+00DF native
+U+00E5 native
+U+00C5 native
+U+00FF native
+U+00B5 native
https://perl5.git.perl.org / perl5.git / blobdiff