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|
#!/usr/bin/env perl
# Fills templates with haskell-escaped strings slurped from input files.
# Takes two arguments, the first specifying the pathname of the target
# relative to the root directory, the second specifying the root directory
# (defaulting to ..). The template is assumed to have the same base name
# as the target and to reside in the templates subdirectory of the root
# directory.
use strict;
use warnings;
# Utility routines:
sub slurp {
open FILE, $_[0] or die "couldn't open file '$_[0]': $!";
my $contents = do { local $/; <FILE>;};
close FILE;
return $contents;
}
sub escape_for_haskell {
my ($contents) = @_;
$contents =~ s/\\/\\\\/g;
$contents =~ s/\t/\\t/g;
$contents =~ s/"/\\"/g;
$contents =~ s/\n/\\n/g;
return $contents;
}
# Template processors.
my %processor = (
# --------------------------------------------------------------------------
'Text/Pandoc/Writers/S5.hs' => {
# --------------------------------------------------------------------------
proc => sub {
my ($template) = @_;
my (@files) = qw(slides.js s5-core.css framing.css pretty.css
opera.css outline.css print.css);
foreach my $file (@files) {
my $replacement = escape_for_haskell(slurp "ui/default/$file");
my $escapedfile = $file;
$escapedfile =~ s/\./\\./g;
$template =~ s/\@$escapedfile\@/$replacement/;
}
return $template;
},
},
# --------------------------------------------------------------------------
'Text/Pandoc/ASCIIMathML.hs' => {
# --------------------------------------------------------------------------
proc => sub {
my ($template) = @_;
my $script = escape_for_haskell(slurp "ASCIIMathML.js");
my $acknowledgements =
" ASCIIMathML.js - copyright Peter Jipsen,".
" released under the GPL\\nSee ".
"http://www1.chapman.edu/~jipsen/mathml/asciimath.html/ ";
$script =~ s/\/\*.*?\*\//\/\*$acknowledgements\*\//g; # strip comments
$template =~ s/\@ASCIIMathML\.js@/$script/;
return $template;
},
},
# --------------------------------------------------------------------------
'Text/Pandoc/Writers/DefaultHeaders.hs' => {
# --------------------------------------------------------------------------
proc => sub {
my ($template) = @_;
my (@headers) = split(/\s/,`ls headers`);
foreach my $header (@headers) {
my ($replacement) = escape_for_haskell(slurp "headers/$header");
$template =~ s/\@$header\@/$replacement/;
}
return $template;
},
},
# --------------------------------------------------------------------------
# 'foo/bar/baz' => {
# --------------------------------------------------------------------------
# template => 'optional-template-filename-defaults-to-baz'
# proc => sub {
# my ($template) = @_;
# # Process.
# return $template;
# },
#},
);
# Main.
my $target = shift @ARGV;
if (!defined $target || !length $target) {
print STDERR "Available targets:\n\n" . join "\n", keys %processor;
die "\n\nYou must supply a target!\n";
}
die "No processor exists for '$target'!\n" if ! exists $processor{$target};
my $rootdir = shift @ARGV || '..';
chdir $rootdir or die "Couldn't chdir to '$rootdir': $!";
my $template;
if (exists $processor{$target}->{template}) {
$template = $processor{$target}->{template};
}
else {
($template = $target) =~ s!.*/+!!;
}
$template = "templates/$template";
die "No template exists for '$target'!\n" if ! -f "$template";
open OUTFILE, ">$target" or die "couldn't open file '$target': $!";
print OUTFILE <<END;
----------------------------------------------------
-- Do not edit this file by hand. Edit
-- '$template'
-- and run $0 $target
----------------------------------------------------
END
print OUTFILE $processor{$target}->{proc}->(slurp($template));
print OUTFILE "\n";
close OUTFILE;
|
