gecko-dev/layout/tools/genhash.pl

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#! /usr/local/bin/perl
# The contents of this file are subject to the Netscape Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/NPL/
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#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
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#
# The Original Code is mozilla.org code.
#
# The Initial Developer of the Original Code is Netscape
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# Communications Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s):
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$klist = @ARGV[0];
$gperfopts = @ARGV[1];
$clazz = @ARGV[2];
$prefix = @ARGV[3];
$props = @ARGV[4];
$ids = @ARGV[5];
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# print "/* klist=$klist */\n";
# print "/* gperfopts=$gperfopts */\n";
# print "/* clazz=$clazz */\n";
# print "/* prefix=$prefix */\n";
# print "/* props=$props */\n";
# print "/* ids=$ids */\n";
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open(NAMES_FILE, "<$props");
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open(HASH, "|gperf -7 -T -t -l $gperfopts -NHashFunc -p -k$klist,\$ > gperf.out.$$");
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# NOTE: the decl here needs to match the TAG_TABLE rules in genhash.inc!!!
print HASH 'struct StaticNameTable { char *name; int id; };
%%
';
open(ID_FILE, ">$ids");
# Load in tag names
$nextval = 0;
while (<NAMES_FILE>) {
if (/(.*)/) {
$prop = $1;
$vals[$nextval] = $prop;
$nextval = $nextval + 1;
}
}
# Output tag id's to ID_FILE and hash info to HASH
print ID_FILE "/* Do not edit - generated by $0 */\n";
for ($i = 0; $i < $nextval; $i++) {
$val = $vals[$i];
$newval = $val;
$newval =~ tr/a-z/A-Z/;
$newval =~ s/-/_/g;
print ID_FILE "#define $prefix$newval $i\n";
print HASH $vals[$i] . ", $i\n";
}
print ID_FILE "#define $prefix" . "MAX $i\n";
close(NAMES_FILE);
close(HASH);
open(C, "<gperf.out.$$");
unlink("gperf.out.$$");
open(T, "<genhash.inc");
while (<T>) {
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if (/^\@begin/) {
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($name, $start, $end) =
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m#\@begin[ ]*([A-Za-z0-9_]+)[ ]*/([^/]*)/[ ]*/([^/]*)/#;
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$line = <C> until (eof(C) || $line =~ /$start/);
if ($line =~ /$start/) {
$template{$name} .= $line;
do {
$line = <C>;
$template{$name} .= $line;
} until ($line =~ /$end/ || eof(C));
}
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} elsif (/^\@include/) {
($name) = /\@include[ ]*(.*)$/;
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print $template{$name};
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} elsif (/^\@sub/) {
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($name, $old, $new) =
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m#\@sub[ ]*([A-Za-z0-9_]*)[ ]/([^/]*)/([^/]*)/#;
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$template{$name} =~ s/$old/$new/g;
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} elsif (/^\@classfunc/) {
print "PRInt32 $clazz\:\:LookupName(const char* str)\n";
} elsif (/^\@classincl/) {
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print "#include \"$clazz.h\"\n";
} elsif (/^@/) {
;
} else {
print $_;
}
}
# Print out tag name table at the end
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print "\nconst $clazz\:\:NameTableEntry $clazz\:\:kNameTable\[\] = {\n";
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for ($i = 0; $i < $nextval; $i++) {
$val = $vals[$i];
$newval = $val;
$newval =~ tr/a-z/A-Z/;
print " { \"$vals[$i]\", $i }, \n";
}
print "};\n";