3 # Regenerate (overwriting only if changed):
7 # from information stored in
12 # Accepts the standard regen_lib -q and -v args.
14 # This script is normally invoked from regen.pl.
17 # Get function prototypes
18 require 'regen_lib.pl';
20 #use Fatal qw(open close rename chmod unlink);
24 open DESC, 'regcomp.sym';
27 my (@name,@rest,@type,@code,@args,@longj);
28 my ($desc,$lastregop);
39 ($name[$ind], $desc, $rest[$ind]) = split /\t+/, $_, 3;
40 ($type[$ind], $code[$ind], $args[$ind], $longj[$ind])
41 = split /[,\s]\s*/, $desc, 4;
43 my ($type,@lists)=split /\s*\t+\s*/, $_;
44 die "No list? $type" if !@lists;
45 foreach my $list (@lists) {
46 my ($names,$special)=split /:/, $list , 2;
48 foreach my $name (split /,/,$names) {
49 my $real= $name eq 'resume'
55 } elsif ($special=~/\d/) {
56 @suffix=(1..$special);
57 } elsif ($special eq 'FAIL') {
60 die "unknown :type ':$special'";
62 foreach my $suffix (@suffix) {
64 $name[$ind]="$real$suffix";
66 $rest[$ind]="state for $type";
73 # use fixed width to keep the diffs between regcomp.pl recompiles
74 # as small as possible.
75 my ($width,$rwidth,$twidth)=(22,12,9);
79 die "Too many regexp/state opcodes! Maximum is 256, but there are $lastregop in file!"
82 my $tmp_h = 'regnodes.h-new';
84 unlink $tmp_h if -f $tmp_h;
86 my $out = safer_open($tmp_h);
89 /* -*- buffer-read-only: t -*-
90 !!!!!!! DO NOT EDIT THIS FILE !!!!!!!
91 This file is built by regcomp.pl from regcomp.sym.
92 Any changes made here will be lost!
95 /* Regops and State definitions */
101 -$width, REGNODE_MAX => $lastregop - 1,
102 -$width, REGMATCH_STATE_MAX => $tot - 1
106 for ($ind=1; $ind <= $lastregop ; $ind++) {
108 printf $out "#define\t%*s\t%d\t/* %#04x %s */\n",
109 -$width, $name[$ind], $ind-1, $ind-1, $rest[$ind];
111 print $out "\t/* ------------ States ------------- */\n";
112 for ( ; $ind <= $tot ; $ind++) {
113 printf $out "#define\t%*s\t(REGNODE_MAX + %d)\t/* %s */\n",
114 -$width, $name[$ind], $ind - $lastregop, $rest[$ind];
119 /* PL_regkind[] What type of regop or state is this. */
122 EXTCONST U8 PL_regkind[];
124 EXTCONST U8 PL_regkind[] = {
128 while (++$ind <= $tot) {
129 printf $out "\t%*s\t/* %*s */\n",
130 -1-$twidth, "$type[$ind],", -$width, $name[$ind];
131 print $out "\t/* ------------ States ------------- */\n"
132 if $ind == $lastregop and $lastregop != $tot;
139 /* regarglen[] - How large is the argument part of the node (in regnodes) */
142 static const U8 regarglen[] = {
146 while (++$ind <= $lastregop) {
148 $size = "EXTRA_SIZE(struct regnode_$args[$ind])" if $args[$ind];
150 printf $out "\t%*s\t/* %*s */\n",
151 -37, "$size,",-$rwidth,$name[$ind];
157 /* reg_off_by_arg[] - Which argument holds the offset to the next node */
159 static const char reg_off_by_arg[] = {
163 while (++$ind <= $lastregop) {
164 my $size = $longj[$ind] || 0;
166 printf $out "\t%d,\t/* %*s */\n",
167 $size, -$rwidth, $name[$ind]
173 #endif /* REG_COMP_C */
175 /* reg_name[] - Opcode/state names in string form, for debugging */
178 EXTCONST char * PL_reg_name[];
180 EXTCONST char * const PL_reg_name[] = {
186 while (++$ind <= $tot) {
187 my $size = $longj[$ind] || 0;
189 printf $out "\t%*s\t/* $sym%#04x */\n",
190 -3-$width,qq("$name[$ind]",), $ind - $ofs;
191 if ($ind == $lastregop and $lastregop != $tot) {
192 print $out "\t/* ------------ States ------------- */\n";
194 $sym = 'REGNODE_MAX +';
203 /* PL_reg_extflags_name[] - Opcode/state names in string form, for debugging */
206 EXTCONST char * PL_reg_extflags_name[];
208 EXTCONST char * const PL_reg_extflags_name[] = {
211 open my $fh,"<","regexp.h" or die "Can't read regexp.h: $!";
216 if (/#define\s+(RXf_\w+)\s+(0x[A-F\d]+)/i) {
217 my $newval = eval $2;
219 die sprintf "Both $1 and $reverse{$newval} use %08X", $newval;
223 $reverse{$newval} = $1;
226 my %vrxf=reverse %rxfv;
227 printf $out "\t/* Bits in extflags defined: %032b */\n",$val;
229 my $n=$vrxf{2**$_}||"UNUSED_BIT_$_";
230 $n=~s/^RXf_(PMf_)?//;
231 printf $out qq(\t%-20s/* 0x%08x */\n),
243 rename_if_different $tmp_h, 'regnodes.h';