mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-28 11:57:28 +00:00
131 lines
3.0 KiB
Perl
131 lines
3.0 KiB
Perl
#! /usr/bin/perl -w
|
|
use strict;
|
|
|
|
# Convert cppucnid.tab to cppucnid.h. We use two arrays of length
|
|
# 65536 to represent the table, since this is nice and simple. The
|
|
# first array holds the tags indicating which ranges are valid in
|
|
# which contexts. The second array holds the language name associated
|
|
# with each element.
|
|
|
|
our(@tags, @names);
|
|
@tags = ("") x 65536;
|
|
@names = ("") x 65536;
|
|
|
|
|
|
# Array mapping tag numbers to standard #defines
|
|
our @stds;
|
|
|
|
# Current standard and language
|
|
our($curstd, $curlang);
|
|
|
|
# First block of the file is a template to be saved for later.
|
|
our @template;
|
|
|
|
while (<>) {
|
|
chomp;
|
|
last if $_ eq '%%';
|
|
push @template, $_;
|
|
};
|
|
|
|
# Second block of the file is the UCN tables.
|
|
# The format looks like this:
|
|
#
|
|
# [std]
|
|
#
|
|
# ; language
|
|
# xxxx-xxxx xxxx xxxx-xxxx ....
|
|
#
|
|
# with comment lines starting with #.
|
|
|
|
while (<>) {
|
|
chomp;
|
|
/^#/ and next;
|
|
/^\s*$/ and next;
|
|
/^\[(.+)\]$/ and do {
|
|
$curstd = $1;
|
|
next;
|
|
};
|
|
/^; (.+)$/ and do {
|
|
$curlang = $1;
|
|
next;
|
|
};
|
|
|
|
process_range(split);
|
|
}
|
|
|
|
# Print out the template, inserting as requested.
|
|
$\ = "\n";
|
|
for (@template) {
|
|
print("/* Automatically generated from cppucnid.tab, do not edit */"),
|
|
next if $_ eq "[dne]";
|
|
print_table(), next if $_ eq "[table]";
|
|
print;
|
|
}
|
|
|
|
sub print_table {
|
|
my($lo, $hi);
|
|
my $prevname = "";
|
|
|
|
for ($lo = 0; $lo <= $#tags; $lo = $hi) {
|
|
$hi = $lo;
|
|
$hi++ while $hi <= $#tags
|
|
&& $tags[$hi] eq $tags[$lo]
|
|
&& $names[$hi] eq $names[$lo];
|
|
|
|
# Range from $lo to $hi-1.
|
|
# Don't make entries for ranges that are not valid idchars.
|
|
next if ($tags[$lo] eq "");
|
|
my $tag = $tags[$lo];
|
|
$tag = " ".$tag if $tag =~ /^C99/;
|
|
|
|
if ($names[$lo] eq $prevname) {
|
|
printf(" { 0x%04x, 0x%04x, %-11s },\n",
|
|
$lo, $hi-1, $tag);
|
|
} else {
|
|
printf(" { 0x%04x, 0x%04x, %-11s }, /* %s */\n",
|
|
$lo, $hi-1, $tag, $names[$lo]);
|
|
}
|
|
$prevname = $names[$lo];
|
|
}
|
|
}
|
|
|
|
# The line is a list of four-digit hexadecimal numbers or
|
|
# pairs of such numbers. Each is a valid identifier character
|
|
# from the given language, under the given standard.
|
|
sub process_range {
|
|
for my $range (@_) {
|
|
if ($range =~ /^[0-9a-f]{4}$/) {
|
|
my $i = hex($range);
|
|
if ($tags[$i] eq "") {
|
|
$tags[$i] = $curstd;
|
|
} else {
|
|
$tags[$i] = $curstd . "|" . $tags[$i];
|
|
}
|
|
if ($names[$i] ne "" && $names[$i] ne $curlang) {
|
|
warn sprintf ("language overlap: %s/%s at %x (tag %d)",
|
|
$names[$i], $curlang, $i, $tags[$i]);
|
|
next;
|
|
}
|
|
$names[$i] = $curlang;
|
|
} elsif ($range =~ /^ ([0-9a-f]{4}) - ([0-9a-f]{4}) $/x) {
|
|
my ($start, $end) = (hex($1), hex($2));
|
|
my $i;
|
|
for ($i = $start; $i <= $end; $i++) {
|
|
if ($tags[$i] eq "") {
|
|
$tags[$i] = $curstd;
|
|
} else {
|
|
$tags[$i] = $curstd . "|" . $tags[$i];
|
|
}
|
|
if ($names[$i] ne "" && $names[$i] ne $curlang) {
|
|
warn sprintf ("language overlap: %s/%s at %x (tag %d)",
|
|
$names[$i], $curlang, $i, $tags[$i]);
|
|
next;
|
|
}
|
|
$names[$i] = $curlang;
|
|
}
|
|
} else {
|
|
warn "malformed range expression $range";
|
|
}
|
|
}
|
|
}
|