diff options
Diffstat (limited to 'zlib2ansi')
| -rwxr-xr-x | zlib2ansi | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/zlib2ansi b/zlib2ansi new file mode 100755 index 0000000..0695f6b --- /dev/null +++ b/zlib2ansi | |||
| @@ -0,0 +1,152 @@ | |||
| 1 | #!/usr/bin/perl | ||
| 2 | |||
| 3 | # Transform K&R C function definitions into ANSI equivalent. | ||
| 4 | # | ||
| 5 | # Author: Paul Marquess | ||
| 6 | # Version: 1.0 | ||
| 7 | # Date: 3 October 2006 | ||
| 8 | |||
| 9 | # TODO | ||
| 10 | # | ||
| 11 | # Asumes no function pointer parameters. unless they are typedefed. | ||
| 12 | # Assumes no literal strings that look like function definitions | ||
| 13 | # Assumes functions start at the beginning of a line | ||
| 14 | |||
| 15 | use strict; | ||
| 16 | use warnings; | ||
| 17 | |||
| 18 | local $/; | ||
| 19 | $_ = <>; | ||
| 20 | |||
| 21 | my $sp = qr{ \s* (?: /\* .*? \*/ )? \s* }x; # assume no nested comments | ||
| 22 | |||
| 23 | my $d1 = qr{ $sp (?: [\w\*\s]+ $sp)* $sp \w+ $sp [\[\]\s]* $sp }x ; | ||
| 24 | my $decl = qr{ $sp (?: \w+ $sp )+ $d1 }xo ; | ||
| 25 | my $dList = qr{ $sp $decl (?: $sp , $d1 )* $sp ; $sp }xo ; | ||
| 26 | |||
| 27 | |||
| 28 | while (s/^ | ||
| 29 | ( # Start $1 | ||
| 30 | ( # Start $2 | ||
| 31 | .*? # Minimal eat content | ||
| 32 | ( ^ \w [\w\s\*]+ ) # $3 -- function name | ||
| 33 | \s* # optional whitespace | ||
| 34 | ) # $2 - Matched up to before parameter list | ||
| 35 | |||
| 36 | \( \s* # Literal "(" + optional whitespace | ||
| 37 | ( [^\)]+ ) # $4 - one or more anythings except ")" | ||
| 38 | \s* \) # optional whitespace surrounding a Literal ")" | ||
| 39 | |||
| 40 | ( (?: $dList )+ ) # $5 | ||
| 41 | |||
| 42 | $sp ^ { # literal "{" at start of line | ||
| 43 | ) # Remember to $1 | ||
| 44 | //xsom | ||
| 45 | ) | ||
| 46 | { | ||
| 47 | my $all = $1 ; | ||
| 48 | my $prefix = $2; | ||
| 49 | my $param_list = $4 ; | ||
| 50 | my $params = $5; | ||
| 51 | |||
| 52 | StripComments($params); | ||
| 53 | StripComments($param_list); | ||
| 54 | $param_list =~ s/^\s+//; | ||
| 55 | $param_list =~ s/\s+$//; | ||
| 56 | |||
| 57 | my $i = 0 ; | ||
| 58 | my %pList = map { $_ => $i++ } | ||
| 59 | split /\s*,\s*/, $param_list; | ||
| 60 | my $pMatch = '(\b' . join('|', keys %pList) . '\b)\W*$' ; | ||
| 61 | |||
| 62 | my @params = split /\s*;\s*/, $params; | ||
| 63 | my @outParams = (); | ||
| 64 | foreach my $p (@params) | ||
| 65 | { | ||
| 66 | if ($p =~ /,/) | ||
| 67 | { | ||
| 68 | my @bits = split /\s*,\s*/, $p; | ||
| 69 | my $first = shift @bits; | ||
| 70 | $first =~ s/^\s*//; | ||
| 71 | push @outParams, $first; | ||
| 72 | $first =~ /^(\w+\s*)/; | ||
| 73 | my $type = $1 ; | ||
| 74 | push @outParams, map { $type . $_ } @bits; | ||
| 75 | } | ||
| 76 | else | ||
| 77 | { | ||
| 78 | $p =~ s/^\s+//; | ||
| 79 | push @outParams, $p; | ||
| 80 | } | ||
| 81 | } | ||
| 82 | |||
| 83 | |||
| 84 | my %tmp = map { /$pMatch/; $_ => $pList{$1} } | ||
| 85 | @outParams ; | ||
| 86 | |||
| 87 | @outParams = map { " $_" } | ||
| 88 | sort { $tmp{$a} <=> $tmp{$b} } | ||
| 89 | @outParams ; | ||
| 90 | |||
| 91 | print $prefix ; | ||
| 92 | print "(\n" . join(",\n", @outParams) . ")\n"; | ||
| 93 | print "{" ; | ||
| 94 | |||
| 95 | } | ||
| 96 | |||
| 97 | # Output any trailing code. | ||
| 98 | print ; | ||
| 99 | exit 0; | ||
| 100 | |||
| 101 | |||
| 102 | sub StripComments | ||
| 103 | { | ||
| 104 | |||
| 105 | no warnings; | ||
| 106 | |||
| 107 | # Strip C & C++ coments | ||
| 108 | # From the perlfaq | ||
| 109 | $_[0] =~ | ||
| 110 | |||
| 111 | s{ | ||
| 112 | /\* ## Start of /* ... */ comment | ||
| 113 | [^*]*\*+ ## Non-* followed by 1-or-more *'s | ||
| 114 | ( | ||
| 115 | [^/*][^*]*\*+ | ||
| 116 | )* ## 0-or-more things which don't start with / | ||
| 117 | ## but do end with '*' | ||
| 118 | / ## End of /* ... */ comment | ||
| 119 | |||
| 120 | | ## OR C++ Comment | ||
| 121 | // ## Start of C++ comment // | ||
| 122 | [^\n]* ## followed by 0-or-more non end of line characters | ||
| 123 | |||
| 124 | | ## OR various things which aren't comments: | ||
| 125 | |||
| 126 | ( | ||
| 127 | " ## Start of " ... " string | ||
| 128 | ( | ||
| 129 | \\. ## Escaped char | ||
| 130 | | ## OR | ||
| 131 | [^"\\] ## Non "\ | ||
| 132 | )* | ||
| 133 | " ## End of " ... " string | ||
| 134 | |||
| 135 | | ## OR | ||
| 136 | |||
| 137 | ' ## Start of ' ... ' string | ||
| 138 | ( | ||
| 139 | \\. ## Escaped char | ||
| 140 | | ## OR | ||
| 141 | [^'\\] ## Non '\ | ||
| 142 | )* | ||
| 143 | ' ## End of ' ... ' string | ||
| 144 | |||
| 145 | | ## OR | ||
| 146 | |||
| 147 | . ## Anything other char | ||
| 148 | [^/"'\\]* ## Chars which doesn't start a comment, string or escape | ||
| 149 | ) | ||
| 150 | }{$2}gxs; | ||
| 151 | |||
| 152 | } | ||
