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#!/bin/sh
# Mangle the rendered files to cause fewer differences after re-rendering.
# Written by Thomas Schwinge <thomas@schwinge.name>.
# Un-mangle mailto links: convert HTML character entities to real characters.
find ./ -name \*.html -print0 \
| xargs -0 --no-run-if-empty -n 1 \
perl -e \
'BEGIN {
$file = $ARGV[0];
$discard = 1;
$replacing = 0;
# TODO: could use a proper temporary file.
open(OUT, ">$file.new") or die "open: $file: $!";
select(OUT) or die "select: $file: $!";
}
while (<>) {
# The replacing-toggling logic is a bit rough, but so is life.
$replacing = 1 if /<a href="mailto:/;
s%\&#(x?)([^;]*);%$discard = 0; chr(length($1) ? hex($2) : $2);%eg if $replacing;
$replacing = 0 if /<\/a>/;
} continue {
print or die "print: $file: $!";
}
END {
if ($discard) {
unlink("$file.new") or die "unlink: $file: $!";
} else {
rename("$file.new", $file) or die "rename: $file: $!";
}
}'
# Compared to using ``perl -p -i -l'', this solution maintains the files'
# original timestamps unless they're actually modified.
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