use warnings;
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', '>',
#ifndef H_UNICODE_CONSTANTS /* Guard against nested #includes */
#define H_UNICODE_CONSTANTS 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:
END
-# The data are at the end of this file. 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 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.
+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($charset);
+ my @a2n = @{get_a2n($charset)};
for ( @data ) {
chomp;
my $name;
my $cp;
my $U_cp; # code point in Unicode (not-native) terms
- my $undef_ok = $desired_name || $flag =~ /skip_if_undef/;
if ($name_or_cp =~ /^U\+(.*)/) {
$U_cp = hex $1;
$name = charnames::viacode($name_or_cp);
if (! defined $name) {
- die "Unknown code point '$name_or_cp' at line $.: $_\n" unless $undef_ok;
+ next if $flag =~ /skip_if_undef/;
+ die "Unknown code point '$name_or_cp' at line $.: $_\n" unless $desired_name;
$name = "";
}
}
}
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 $out_fh "\n#endif /* H_UNICODE_CONSTANTS */\n";
read_only_bottom_close_and_rename($out_fh);
+# DATA FORMAT
+#
+# 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 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.
+
__DATA__
U+017F string
U+0399 string
U+03BC string
-U+1E9E string
+U+1E9E string_skip_if_undef
U+FB05 string
U+FB06 string
+U+0130 string
+U+0131 string
U+2010 string
-U+D800 first FIRST_SURROGATE
BOM first
BOM tail
DEL native
CR native
LF native
+VT native
+ESC native
U+00DF native
U+00E5 native
U+00C5 native
https://perl5.git.perl.org / perl5.git / blobdiff