45 lines
1.4 KiB
Perl
Executable File
45 lines
1.4 KiB
Perl
Executable File
#! /usr/bin/env perl
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use strict;
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# Silly little program to generate the help.c source file
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# from the less.hlp text file.
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# The output of this script is a C program defining a char array
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# whose content is the input to this script.
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{
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my ($sec,$min,$hour,$mday,$mon,$year) = gmtime();
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printf "/* This file was generated by mkhelp.pl from less.hlp at %d:%02d on %d/%d/%d */\n",
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$hour, $min, $year+1900, $mon+1, $mday;
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print "#include \"less.h\"\n";
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print "constant char helpdata[] = {\n";
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my $ch = 0;
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my $prevch;
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for (;;) {
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$prevch = $ch;
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$ch = getc();
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last if not defined $ch;
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if ($ch eq "'") {
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print "'\\'',";
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} elsif ($ch eq "\\") {
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print "'\\\\',";
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} elsif ($ch eq "\b") {
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print "'\\b',";
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} elsif ($ch eq "\t") {
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print "'\\t',";
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} elsif ($ch eq "\n") {
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print "'\\n',\n" if $prevch ne "\r";
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} elsif ($ch eq "\r") {
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print "'\\n',\n" if $prevch ne "\n";
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} else {
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if (ord($ch) >= ord(' ') && ord($ch) < 0x7f) {
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print "'$ch',";
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} else {
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printf "0x%02x,", ord($ch);
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}
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}
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}
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# Add an extra null char to avoid having a trailing comma.
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print " 0 };\n";
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print "constant int size_helpdata = sizeof(helpdata) - 1;\n";
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}
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