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
+# 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 $out_fh "\n";
+ chomp;
+
+ # Convert any '#' comments to /* ... */; empty lines and comments are
+ # output as blank lines
+ if ($_ =~ m/ ^ \s* (?: \# ( .* ) )? $ /x) {
+ my $comment_body = $1 // "";
+ if ($comment_body ne "") {
+ print $out_fh "/* $comment_body */\n";
+ }
+ else {
+ print $out_fh "\n";
+ }
next;
}
- chomp;
unless ($_ =~ m/ ^ ( [^\ ]* ) # Name or code point token
- (?: [\ ]+ ( .* ) )? # optional flag
+ (?: [\ ]+ ( [^ ]* ) )? # 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 $cp;
-
- if ($name_or_cp =~ /[^[:xdigit:]]/) {
-
- # Anything that isn't a hex value must be a name.
+ 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;
+ $name = "";
+ }
+ $cp = utf8::unicode_to_native($U_cp);
+ }
+ else {
$name = $name_or_cp;
$cp = charnames::vianame($name =~ s/_/ /gr);
+ $U_cp = utf8::native_to_unicode($cp);
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;
- }
- $name =~ s/ /_/g; # The macro name can have no blanks in it
+ $name = $desired_name if $name eq "" && $desired_name;
+ $name =~ s/[- ]/_/g; # The macro name can have no blanks nor dashes
my $str = join "", map { sprintf "\\x%02X", $_ }
- unpack("U0C*", pack("U", hex $cp));
+ unpack("U0C*", pack("U", $cp));
my $suffix = '_UTF8';
- if (! defined $flag || $flag eq 'string') {
+ 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
$str = "0x$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;
+ die "Are you sure you want to run this on an above-Latin1 code point?" if $cp > 0xff;
$suffix = '_NATIVE';
- $str = utf8::unicode_to_native(hex $cp);
- $str = "0x$cp"; # Is a numeric constant
+ $str = sprintf "0x%02X", $cp; # Is a numeric constant
}
else {
die "Unknown flag at line $.: $_\n";
}
- print $out_fh "#define ${name}$suffix $str /* U+$cp */\n";
+ printf $out_fh "#define %s%s %s /* U+%04X */\n", $name, $suffix, $str, $U_cp;
}
print $out_fh "\n#endif /* H_UNICODE_CONSTANTS */\n";
read_only_bottom_close_and_rename($out_fh);
__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
+
+U+0300 string
+U+0301 string
+U+0308 string
+
+U+0399 string
+U+03BC string
+
+U+03B9 string
+
+U+03C5 string
+
+U+2010 string
+U+D800 first FIRST_SURROGATE
+
+DEL native
+U+00DF native
+U+00E5 native
+U+00C5 native
+U+00FF native
+U+00B5 native
https://perl5.git.perl.org / perl5.git / blobdiff