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BEGIN {
# Get function prototypes
require 'regen_lib.pl';
}
#use Fatal qw(open close rename chmod unlink);
open DESC, 'regcomp.sym';
$ind = 0;
while (<DESC>) {
next if /^\s*($|\#)/;
$ind++;
chomp;
($name[$ind], $desc, $rest[$ind]) = split /\t+/, $_, 3;
($type[$ind], $code[$ind], $args[$ind], $longj[$ind])
= split /[,\s]\s*/, $desc, 4;
}
close DESC;
$tot = $ind;
die "Too many regexp opcodes! Maximum is 256, but there are $tot in file!"
if $tot>256;
$tmp_h = 'tmp_reg.h';
unlink $tmp_h if -f $tmp_h;
open OUT, ">$tmp_h";
binmode OUT;
print OUT <<EOP;
/* -*- buffer-read-only: t -*-
!!!!!!! DO NOT EDIT THIS FILE !!!!!!!
This file is built by regcomp.pl from regcomp.sym.
Any changes made here will be lost!
*/
EOP
$ind = 0;
while (++$ind <= $tot) {
$oind = $ind - 1;
$hind = sprintf "%#4x", $oind;
print OUT <<EOP;
#define $name[$ind] $oind /* $hind $rest[$ind] */
EOP
}
print OUT <<EOP;
#define REGNODE_MAX $oind
#ifndef DOINIT
EXTCONST U8 PL_regkind[];
#else
EXTCONST U8 PL_regkind[] = {
EOP
$ind = 0;
while (++$ind <= $tot) {
print OUT <<EOP;
$type[$ind], /* $name[$ind] */
EOP
}
print OUT <<EOP;
};
#endif
#ifdef REG_COMP_C
static const U8 regarglen[] = {
EOP
$ind = 0;
while (++$ind <= $tot) {
$size = 0;
$size = "EXTRA_SIZE(struct regnode_$args[$ind])" if $args[$ind];
print OUT <<EOP;
$size, /* $name[$ind] */
EOP
}
print OUT <<EOP;
};
static const char reg_off_by_arg[] = {
EOP
$ind = 0;
while (++$ind <= $tot) {
$size = $longj[$ind] || 0;
print OUT <<EOP;
$size, /* $name[$ind] */
EOP
}
print OUT <<EOP;
};
#ifdef DEBUGGING
static const char * const reg_name[] = {
EOP
$ind = 0;
while (++$ind <= $tot) {
$hind = sprintf "%#4x", $ind-1;
$size = $longj[$ind] || 0;
print OUT <<EOP;
"$name[$ind]", /* $hind */
EOP
}
print OUT <<EOP;
};
static const int reg_num = $tot;
#endif /* DEBUGGING */
#endif /* REG_COMP_C */
/* ex: set ro: */
EOP
close OUT or die "close $tmp_h: $!";
safer_rename $tmp_h, 'regnodes.h';
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