52 lines
1.6 KiB
Bash
Executable File
52 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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#
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# Removes trailing commas from array and object declarations (certain browsers,
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# such as earlier versions of IE, do not parse trailing commas correctly)
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#
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# This is a very simple (dumb) system. It does not check to ensure we're not
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# replacing text inside a string, nor is it 100% certain we're in an array or
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# object declaration. However, until such an implementation is needed, I'd like
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# to keep it as simple (and fast) as possible. The below implementation is
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# suitable for our needs.
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#
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# Copyright (C) 2010, 2011, 2012 Mike Gerwitz
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#
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# This file is part of GNU ease.js.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# #
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# read from stdin
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cat - \
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| sed -n '
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# copy first line to hold buffer
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1h
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# if not the first line, append to hold buffer
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1!H
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# if last line, process
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$ {
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# pull from hold and perform replacement
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g
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s/,\(\s*[]}]\)/\1/g
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# print result
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p
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}
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'
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exit 0
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