mirror of https://github.com/omar-polo/gmid.git
47 lines
1.3 KiB
Perl
Executable File
47 lines
1.3 KiB
Perl
Executable File
#!/usr/bin/env perl
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#
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# Copyright (c) 2022 Omar Polo <op@omarpolo.com>
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#
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# Permission to use, copy, modify, and distribute this software for any
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# purpose with or without fee is hereby granted, provided that the above
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# copyright notice and this permission notice appear in all copies.
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#
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#
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# subst -- filter that replaces key=values pairs
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#
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# usage: subst key1=val1 [... keyn=valn] [files...]
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#
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# Use `--' before the first file if it may contain an = in its name.
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# If no files are given, read and substitute from standard input.
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use v5.10;
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use strict;
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use warnings;
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my @args = ();
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while (1) {
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$_ = shift;
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last if !$_;
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if ($_ eq '--') {
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last;
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} elsif ($_ !~ m/=/) {
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unshift @ARGV, $_;
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last;
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}
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my ($match, $repl) = m/^([^\s]*)=(.*)$/;
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push @args, "-e", "s,$match,$repl,g";
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}
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# OK, shelling out to sed is a bit lame...
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exec "sed", @args, @ARGV;
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