print OUT <<'!NO!SUBS!';
+BEGIN { pop @INC if $INC[-1] eq '.' }
+
use strict;
use Config;
$t = '';
$tab = 0;
- # $eval_index goes into ``#line'' directives, to help locate syntax errors:
+ # $eval_index goes into '#line' directives, to help locate syntax errors:
$eval_index = 1;
if ($file eq '-') {
s/^\s+//;
expr();
$new =~ s/(["\\])/\\$1/g; #"]);
- EMIT:
- $new = reindent($new);
- $args = reindent($args);
- if ($t ne '') {
- $new =~ s/(['\\])/\\$1/g; #']);
- if ($opt_h) {
- print OUT $t,
- "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
- $eval_index++;
- } else {
- print OUT $t,
- "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
- }
- } else {
- print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n";
- }
- %curargs = ();
+ EMIT($proto);
} else {
s/^\s+//;
expr();
+
$new = 1 if $new eq '';
+
+ # Shunt around such directives as '#define FOO FOO':
+ next if $new =~ /^\s*&\Q$name\E\s*\z/;
+
$new = reindent($new);
$args = reindent($args);
- if ($t ne '') {
- $new =~ s/(['\\])/\\$1/g; #']);
-
- if ($opt_h) {
- print OUT $t,"eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name () {",$new,";}' unless defined(\&$name);\n";
- $eval_index++;
- } else {
- print OUT $t,"eval 'sub $name () {",$new,";}' unless defined(\&$name);\n";
- }
- } else {
- # Shunt around such directives as `#define FOO FOO':
- next if " \&$name" eq $new;
+ $new =~ s/(['\\])/\\$1/g; #']);
- print OUT $t,"unless(defined(\&$name)) {\n sub $name () {\t",$new,";}\n}\n";
+ print OUT $t, 'eval ';
+ if ($opt_h) {
+ print OUT "\"\\n#line $eval_index $outfile\\n\" . ";
+ $eval_index++;
}
+ print OUT "'sub $name () {$new;}' unless defined(&$name);\n";
}
} elsif (/^(include|import|include_next)\s*([<\"])(.*)[>\"]/) {
$incl_type = $1;
$new =~ s/&$_\b/\$$_/g for @local_variables;
$new =~ s/(["\\])/\\$1/g; #"]);
# now that's almost like a macro (we hope)
- goto EMIT;
+ EMIT($proto);
}
}
$Is_converted{$file} = 1;
exit $Exit;
+sub EMIT {
+ my $proto = shift;
+
+ $new = reindent($new);
+ $args = reindent($args);
+ if ($t ne '') {
+ $new =~ s/(['\\])/\\$1/g; #']);
+ if ($opt_h) {
+ print OUT $t,
+ "eval \"\\n#line $eval_index $outfile\\n\" . 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
+ $eval_index++;
+ } else {
+ print OUT $t,
+ "eval 'sub $name $proto\{\n$t ${args}eval q($new);\n$t}' unless defined(\&$name);\n";
+ }
+ } else {
+ print OUT "unless(defined(\&$name)) {\n sub $name $proto\{\n\t${args}eval q($new);\n }\n}\n";
+ }
+ %curargs = ();
+ return;
+}
+
sub expr {
- $new = '"(assembly code)"' and return if /\b__asm__\b/; # freak out.
+ if (/\b__asm__\b/) { # freak out
+ $new = '"(assembly code)"';
+ return
+ }
my $joined_args;
if(keys(%curargs)) {
$joined_args = join('|', keys(%curargs));
# Croak if nv_preserves_uv_bits < 64 ?
$new .= hex(substr($hex, -8)) +
2**32 * hex(substr($hex, 0, -8));
- # The above will produce "errorneus" code
+ # The above will produce "erroneous" code
# if the hex constant was e.g. inside UINT64_C
# macro, but then again, h2ph is an approximation.
} else {
if ($opt_r) {
expand_glob($file);
} else {
- print STDERR "Skipping directory `$file'\n";
+ print STDERR "Skipping directory '$file'\n";
}
} elsif ($opt_a) {
return $file;
} else {
- print STDERR "Skipping `$file': not a file or directory\n";
+ print STDERR "Skipping '$file': not a file or directory\n";
}
}
# non-GCC?) C compilers, but gcc uses additional include directories.
sub inc_dirs
{
- my $from_gcc = `LC_ALL=C $Config{cc} -v 2>&1`;
- if( !( $from_gcc =~ s:^Reading specs from (.*?)/specs\b.*:$1/include:s ) )
- { # gcc-4+ :
- $from_gcc = `LC_ALL=C $Config{cc} -print-search-dirs 2>&1`;
- if ( !($from_gcc =~ s/^install:\s*([^\s]+[^\s\/])([\s\/]*).*$/$1\/include/s) )
- {
- $from_gcc = '';
- };
- };
- length($from_gcc) ? ($from_gcc, $from_gcc . "-fixed", $Config{usrinc}) : ($Config{usrinc});
+ my $from_gcc = `LC_ALL=C $Config{cc} -v -E - < /dev/null 2>&1 | awk '/^#include/, /^End of search list/' | grep '^ '`;
+ length($from_gcc) ? (split(' ', $from_gcc), $Config{usrinc}) : ($Config{usrinc});
}
sub build_preamble_if_necessary
{
# Increment $VERSION every time this function is modified:
- my $VERSION = 2;
+ my $VERSION = 4;
my $preamble = "$Dest_dir/_h2ph_pre.ph";
# Can we skip building the preamble file?
open PREAMBLE, ">$preamble" or die "Cannot open $preamble: $!";
print PREAMBLE "# This file was created by h2ph version $VERSION\n";
+ # Prevent non-portable hex constants from warning.
+ #
+ # We still produce an overflow warning if we can't represent
+ # a hex constant as an integer.
+ print PREAMBLE "no warnings qw(portable);\n";
foreach (sort keys %define) {
if ($opt_D) {
# parenthesized value: d=(v)
$define{$_} = $1;
}
- if ($define{$_} =~ /^([+-]?(\d+)?\.\d+([eE][+-]?\d+)?)[FL]?$/) {
+ if (/^(\w+)\((\w)\)$/) {
+ my($macro, $arg) = ($1, $2);
+ my $def = $define{$_};
+ $def =~ s/$arg/\$\{$arg\}/g;
+ print PREAMBLE <<DEFINE;
+unless (defined &$macro) { sub $macro(\$) { my (\$$arg) = \@_; \"$def\" } }
+
+DEFINE
+ } elsif
+ ($define{$_} =~ /^([+-]?(\d+)?\.\d+([eE][+-]?\d+)?)[FL]?$/) {
# float:
print PREAMBLE
"unless (defined &$_) { sub $_() { $1 } }\n\n";
# integer:
print PREAMBLE
"unless (defined &$_) { sub $_() { $1 } }\n\n";
+ } elsif ($define{$_} =~ /^([+-]?0x[\da-f]+)U?L{0,2}$/i) {
+ # hex integer
+ # Special cased, since perl warns on hex integers
+ # that can't be represented in a UV.
+ #
+ # This way we get the warning at time of use, so the user
+ # only gets the warning if they happen to use this
+ # platform-specific definition.
+ my $code = $1;
+ $code = "hex('$code')" if length $code > 10;
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { $code } }\n\n";
} elsif ($define{$_} =~ /^\w+$/) {
- print PREAMBLE
- "unless (defined &$_) { sub $_() { &$define{$_} } }\n\n";
+ my $def = $define{$_};
+ if ($isatype{$def}) {
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { \"$def\" } }\n\n";
+ } else {
+ print PREAMBLE
+ "unless (defined &$_) { sub $_() { &$def } }\n\n";
+ }
} else {
print PREAMBLE
"unless (defined &$_) { sub $_() { \"",
my $allsymbols = join " ",
@Config{'ccsymbols', 'cppsymbols', 'cppccsymbols'};
- # Split compiler pre-definitions into `key=value' pairs:
+ # Split compiler pre-definitions into 'key=value' pairs:
while ($allsymbols =~ /([^\s]+)=((\\\s|[^\s])+)/g) {
$define{$1} = $2;
if ($opt_D) {
=head1 SYNOPSIS
-B<h2ph [-d destination directory] [-r | -a] [-l] [headerfiles]>
+B<h2ph [-d destination directory] [-r | -a] [-l] [-h] [-e] [-D] [-Q]
+[headerfiles]>
=head1 DESCRIPTION
=item -h
-Put ``hints'' in the .ph files which will help in locating problems with
+Put 'hints' in the .ph files which will help in locating problems with
I<h2ph>. In those cases when you B<require> a B<.ph> file containing syntax
errors, instead of the cryptic
However, the B<.ph> files almost double in size when built using B<-h>.
+=item -e
+
+If an error is encountered during conversion, output file will be removed and
+a warning emitted instead of terminating the conversion immediately.
+
=item -D
Include the code from the B<.h> file as a comment in the B<.ph> file.
=item -Q
-``Quiet'' mode; don't print out the names of the files being converted.
+'Quiet' mode; don't print out the names of the files being converted.
=back
https://perl5.git.perl.org / perl5.git / blobdiff