CMakeLua/Utilities/cmcurl-7.19.0/src/mkhelp.pl

   1 #!/usr/local/bin/perl
   2
   3 # Yeah, I know, probably 1000 other persons already wrote a script like
   4 # this, but I'll tell ya:
   5
   6 # THEY DON'T FIT ME :-)
   7
   8 # Get readme file as parameter:
   9
  10 if($ARGV[0] eq "-c") {
  11     $c=1;
  12     shift @ARGV;
  13 }
  14
  15 my $README = $ARGV[0];
  16
  17 if($README eq "") {
  18     print "usage: mkreadme.pl [-c] <README> < manpage\n";
  19     exit;
  20 }
  21
  22
  23 push @out, "                                  _   _ ____  _     \n";
  24 push @out, "  Project                     ___| | | |  _ \\| |    \n";
  25 push @out, "                             / __| | | | |_) | |    \n";
  26 push @out, "                            | (__| |_| |  _ <| |___ \n";
  27 push @out, "                             \\___|\\___/|_| \\_\\_____|\n";
  28
  29 my $olen=0;
  30 while (<STDIN>) {
  31     my $line = $_;
  32
  33     # this should be removed:
  34     $line =~ s/(\b.|_\b)//g;
  35
  36     if($line =~ /^([ \t]*\n|curl)/i) {
  37         # cut off headers and empty lines
  38         $wline++; # count number of cut off lines
  39         next;
  40     }
  41
  42     my $text = $line;
  43     $text =~ s/^\s+//g; # cut off preceeding...
  44     $text =~ s/\s+$//g; # and trailing whitespaces
  45
  46     $tlen = length($text);
  47
  48     if($wline && ($olen == $tlen)) {
  49         # if the previous line with contents was exactly as long as
  50         # this line, then we ignore the newlines!
  51
  52         # We do this magic because a header may abort a paragraph at
  53         # any line, but we don't want that to be noticed in the output
  54         # here
  55         $wline=0;
  56     }
  57     $olen = $tlen;
  58
  59     if($wline) {
  60         # we only make one empty line max
  61         $wline = 0;
  62         push @out, "\n";
  63     }
  64     push @out, $line;
  65 }
  66 push @out, "\n"; # just an extra newline
  67
  68 open(READ, "<$README") ||
  69     die "couldn't read the README infile $README";
  70
  71 while(<READ>) {
  72     push @out, $_;
  73 }
  74 close(READ);
  75
  76 # if compressed
  77 if($c) {
  78     my @test = `gzip --version 2>&1`;
  79     if($test[0] =~ /gzip/) {
  80         open(GZIP, ">dumpit") ||
  81             die "can't create the dumpit file, try without -c";
  82         binmode GZIP;
  83         for(@out) {
  84             print GZIP $_;
  85             $gzip += length($_);
  86         }
  87         close(GZIP);
  88
  89         system("gzip --best --no-name dumpit");
  90
  91         open(GZIP, "<dumpit.gz") ||
  92              die "can't read the dumpit.gz file, try without -c";
  93         binmode GZIP;
  94         while(<GZIP>) {
  95             push @gzip, $_;
  96             $gzipped += length($_);
  97         }
  98         close(GZIP);
  99
 100         unlink("dumpit.gz");
 101     }
 102     else {
 103         # no gzip, no compression!
 104         undef $c;
 105         print STDERR "MEEEP: Couldn't find gzip, disable compression\n";
 106     }
 107 }
 108
 109 $now = localtime;
 110 print <<HEAD
 111 /*
 112  * NEVER EVER edit this manually, fix the mkhelp.pl script instead!
 113  * Generation time: $now
 114  */
 115 #include "setup.h"
 116 #ifdef USE_MANUAL
 117 #include "hugehelp.h"
 118 #include <stdio.h>
 119 HEAD
 120     ;
 121 if($c) {
 122     print <<HEAD
 123 #include <stdlib.h>
 124 #include <zlib.h>
 125 static const unsigned char hugehelpgz[] = {
 126   /* This mumbo-jumbo is the huge help text compressed with gzip.
 127      Thanks to this operation, the size of this data shrunk from $gzip
 128      to $gzipped bytes. You can disable the use of compressed help
 129      texts by NOT passing -c to the mkhelp.pl tool. */
 130 HEAD
 131 ;
 132     my $c=0;
 133     print " ";
 134     for(@gzip) {
 135         my @all=split(//, $_);
 136         for(@all) {
 137             my $num=ord($_);
 138             printf(" 0x%02x,", 0+$num);
 139             if(++$c>11) {
 140                 print "\n ";
 141                 $c=0;
 142             }
 143         }
 144     }
 145     print "\n};\n";
 146
 147     print <<EOF
 148 #define BUF_SIZE 0x10000
 149 /* Decompress and send to stdout a gzip-compressed buffer */
 150 void hugehelp(void)
 151 {
 152   unsigned char* buf;
 153   int status,headerlen;
 154   z_stream z;
 155
 156   /* Make sure no gzip options are set */
 157   if (hugehelpgz[3] & 0xfe)
 158     return;
 159
 160   headerlen = 10;
 161   z.avail_in = (unsigned int)(sizeof(hugehelpgz) - headerlen);
 162   z.next_in = (unsigned char *)hugehelpgz + headerlen;
 163   z.zalloc = (alloc_func)Z_NULL;
 164   z.zfree = (free_func)Z_NULL;
 165   z.opaque = 0;
 166
 167   if (inflateInit2(&z, -MAX_WBITS) != Z_OK)
 168     return;
 169
 170   buf = malloc(BUF_SIZE);
 171   if (buf) {
 172     while(1) {
 173       z.avail_out = BUF_SIZE;
 174       z.next_out = buf;
 175       status = inflate(&z, Z_SYNC_FLUSH);
 176       if (status == Z_OK || status == Z_STREAM_END) {
 177         fwrite(buf, BUF_SIZE - z.avail_out, 1, stdout);
 178         if (status == Z_STREAM_END)
 179            break;
 180       }
 181        else
 182         break;    /* Error */
 183     }
 184     free(buf);
 185   }
 186   inflateEnd(&z);
 187 }
 188 EOF
 189     ;
 190 foot();
 191 exit;
 192 }
 193 else {
 194     print <<HEAD
 195 void hugehelp(void)
 196 {
 197    fputs(
 198 HEAD
 199          ;
 200 }
 201
 202 $outsize=0;
 203 for(@out) {
 204     chop;
 205
 206     $new = $_;
 207
 208     $outsize += length($new)+1; # one for the newline
 209
 210     $new =~ s/\\/\\\\/g;
 211     $new =~ s/\"/\\\"/g;
 212
 213     # gcc 2.96 claims ISO C89 only is required to support 509 letter strings
 214     if($outsize > 500) {
 215         # terminate and make another fputs() call here
 216         print ", stdout);\n fputs(\n";
 217         $outsize=length($new)+1;
 218     }
 219     printf("\"%s\\n\"\n", $new);
 220
 221 }
 222
 223 print ", stdout) ;\n}\n";
 224
 225 foot();
 226
 227 sub foot {
 228   print <<FOOT
 229 #endif /* USE_MANUAL */
 230 FOOT
 231   ;
 232 }