54 lines
1.5 KiB
Plaintext
54 lines
1.5 KiB
Plaintext
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#!/bin/bash
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# Generate HTML header
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#
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# Copyright (C) 2019 Mike Gerwitz
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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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# The header is mostly static but contains a dynamic page type and title.
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##
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set -euo pipefail
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declare -ri EX_USAGE=64
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# Generate header by populating @PAGE_{TITLE,TYPE}@. If no title is given,
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# then the title will be completely omitted. If provided, it will have an
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# em dash delimiter appended, with whitespace on both sides for visual
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# clarity (contrary to my usual typographical conventions).
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main()
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{
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local -r type=${1?Missing type}
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local -r title_orig=${2:-}
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local -r title=${title_orig/&/\\&}
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[[ $type =~ ^[a-z]+$ ]] || {
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echo 'error: type must be an all-lowercase word'
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exit $EX_USAGE
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}
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[[ ! $title =~ \# ]] || {
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echo "error: title must not contain \`#'"
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exit $EX_USAGE
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}
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sed "s#@PAGE_TITLE@#$title${title:+ \\— }#g
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s#@PAGE_TYPE@#$type#g" \
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src/header.tpl.htm
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}
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main "$@"
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