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mirror of https://github.com/moparisthebest/curl synced 2024-11-15 14:05:03 -05:00
curl/src/mkhelp.pl
Jay Satiro 28de58504e mkhelp: Remove trailing carriage return from every line of input
- Get rid of this flood of warnings in Windows mingw build:
warning: missing terminating " character

The warning is due to the carriage return. When msysgit checks out files
from the repo by default it converts the line endings to CRLF. Prior to
this change when mkhelp.pl processed the MANUAL and curl.1 in CRLF
format the trailing carriage returns caused unnecessary CR in the
output.
2015-03-18 13:48:36 +01:00

275 lines
6.5 KiB
Perl
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#!/usr/local/bin/perl
#***************************************************************************
# _ _ ____ _
# Project ___| | | | _ \| |
# / __| | | | |_) | |
# | (__| |_| | _ <| |___
# \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at http://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# Yeah, I know, probably 1000 other persons already wrote a script like
# this, but I'll tell ya:
# THEY DON'T FIT ME :-)
# Get readme file as parameter:
if($ARGV[0] eq "-c") {
$c=1;
shift @ARGV;
}
my $README = $ARGV[0];
if($README eq "") {
print "usage: mkreadme.pl [-c] <README> < manpage\n";
exit;
}
push @out, " _ _ ____ _\n";
push @out, " Project ___| | | | _ \\| |\n";
push @out, " / __| | | | |_) | |\n";
push @out, " | (__| |_| | _ <| |___\n";
push @out, " \\___|\\___/|_| \\_\\_____|\n";
my $olen=0;
while (<STDIN>) {
my $line = $_;
# this should be removed:
$line =~ s/(.|_)//g;
# remove trailing CR from line. msysgit checks out files as line+CRLF
$line =~ s/\r$//;
if($line =~ /^([ \t]*\n|curl)/i) {
# cut off headers and empty lines
$wline++; # count number of cut off lines
next;
}
my $text = $line;
$text =~ s/^\s+//g; # cut off preceding...
$text =~ s/\s+$//g; # and trailing whitespaces
$tlen = length($text);
if($wline && ($olen == $tlen)) {
# if the previous line with contents was exactly as long as
# this line, then we ignore the newlines!
# We do this magic because a header may abort a paragraph at
# any line, but we don't want that to be noticed in the output
# here
$wline=0;
}
$olen = $tlen;
if($wline) {
# we only make one empty line max
$wline = 0;
push @out, "\n";
}
push @out, $line;
}
push @out, "\n"; # just an extra newline
open(READ, "<$README") ||
die "couldn't read the README infile $README";
while(<READ>) {
my $line = $_;
# remove trailing CR from line. msysgit checks out files as line+CRLF
$line =~ s/\r$//;
push @out, $line;
}
close(READ);
# if compressed
if($c) {
my @test = `gzip --version 2>&1`;
if($test[0] =~ /gzip/) {
open(GZIP, ">dumpit") ||
die "can't create the dumpit file, try without -c";
binmode GZIP;
for(@out) {
print GZIP $_;
$gzip += length($_);
}
close(GZIP);
system("gzip --best --no-name dumpit");
open(GZIP, "<dumpit.gz") ||
die "can't read the dumpit.gz file, try without -c";
binmode GZIP;
while(<GZIP>) {
push @gzip, $_;
$gzipped += length($_);
}
close(GZIP);
unlink("dumpit.gz");
}
else {
# no gzip, no compression!
undef $c;
print STDERR "MEEEP: Couldn't find gzip, disable compression\n";
}
}
$now = localtime;
print <<HEAD
/*
* NEVER EVER edit this manually, fix the mkhelp.pl script instead!
* Generation time: $now
*/
#ifdef USE_MANUAL
#include "tool_hugehelp.h"
HEAD
;
if($c) {
print <<HEAD
#include <zlib.h>
#include "memdebug.h" /* keep this as LAST include */
static const unsigned char hugehelpgz[] = {
/* This mumbo-jumbo is the huge help text compressed with gzip.
Thanks to this operation, the size of this data shrunk from $gzip
to $gzipped bytes. You can disable the use of compressed help
texts by NOT passing -c to the mkhelp.pl tool. */
HEAD
;
my $c=0;
print " ";
for(@gzip) {
my @all=split(//, $_);
for(@all) {
my $num=ord($_);
printf(" 0x%02x,", 0+$num);
if(++$c>11) {
print "\n ";
$c=0;
}
}
}
print "\n};\n";
print <<EOF
#define BUF_SIZE 0x10000
static voidpf zalloc_func(voidpf opaque, unsigned int items, unsigned int size)
{
(void) opaque;
/* not a typo, keep it calloc() */
return (voidpf) calloc(items, size);
}
static void zfree_func(voidpf opaque, voidpf ptr)
{
(void) opaque;
free(ptr);
}
/* Decompress and send to stdout a gzip-compressed buffer */
void hugehelp(void)
{
unsigned char* buf;
int status,headerlen;
z_stream z;
/* Make sure no gzip options are set */
if (hugehelpgz[3] & 0xfe)
return;
headerlen = 10;
memset(&z, 0, sizeof(z_stream));
z.zalloc = (alloc_func)zalloc_func;
z.zfree = (free_func)zfree_func;
z.avail_in = (unsigned int)(sizeof(hugehelpgz) - headerlen);
z.next_in = (unsigned char *)hugehelpgz + headerlen;
if (inflateInit2(&z, -MAX_WBITS) != Z_OK)
return;
buf = malloc(BUF_SIZE);
if (buf) {
while(1) {
z.avail_out = BUF_SIZE;
z.next_out = buf;
status = inflate(&z, Z_SYNC_FLUSH);
if (status == Z_OK || status == Z_STREAM_END) {
fwrite(buf, BUF_SIZE - z.avail_out, 1, stdout);
if (status == Z_STREAM_END)
break;
}
else
break; /* Error */
}
free(buf);
}
inflateEnd(&z);
}
EOF
;
foot();
exit;
}
else {
print <<HEAD
void hugehelp(void)
{
fputs(
HEAD
;
}
$outsize=0;
for(@out) {
chop;
$new = $_;
$outsize += length($new)+1; # one for the newline
$new =~ s/\\/\\\\/g;
$new =~ s/\"/\\\"/g;
# gcc 2.96 claims ISO C89 only is required to support 509 letter strings
if($outsize > 500) {
# terminate and make another fputs() call here
print ", stdout);\n fputs(\n";
$outsize=length($new)+1;
}
printf("\"%s\\n\"\n", $new);
}
print ", stdout) ;\n}\n";
foot();
sub foot {
print <<FOOT
#else /* !USE_MANUAL */
/* built-in manual is disabled, blank function */
#include "tool_hugehelp.h"
void hugehelp(void) {}
#endif /* USE_MANUAL */
FOOT
;
}