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#!/usr/bin/env bash
#
# Copyright 2018 Einhard Leichtfuß
#
# basic.sh - script containing the array of the to be generated dictionary's
# names and some common functionality, mostly wrapping sed.
#
# Copyright 2018 Einhard Leichtfuß
#
# This file is part of aur-fd-scripts
#
# aur-fd-scripts is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# aur-fd-scripts is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with aur-fd-scripts. If not, see <https://www.gnu.org/licenses/>.
#
# All methods operate on the file "$tmp".
script_path="$(realpath "$0")"
script_dir="${script_path%/*}"
. "${script_dir}/config.sh" || exit 1
function init
{
tmp_d="$(mktemp -d)"
tmp="$tmp_d/a"
tmp_="$tmp_d/b"
}
# $1: file to treat as input: filename
# requires: init to be run
function input
{
cp "$1" "$tmp"
}
# $1: file to write to: filename
# requires: init and input to be run
function write
{
cp "$tmp" "$1"
}
function cleanup
{
rm -rf "$tmp_d"
}
trap cleanup EXIT
# $1: string to replace: extended regular expression
# $2: string to replace with: sed replacement string
function replace
{
sed -Ei "s/${1}/${2}/g" "$tmp"
}
# Replace line by a string (possibly including newlines).
# $1 line to replace: extended regular expression
# $2 text to replace with: (newline terminated) sed replacement string
# $3 removal type: (rm-plus-one|normal)
# `- If $2 is empty, whether to remove only that line or also the one
# following.
function replace_line
{
if test -n "$2"
then
printf '%s' "$2" > "$tmp_"
sed -Ei "
/${1}/ {
r $tmp_
d
}
" "$tmp"
else
if [[ "$3" == rm-plus-one ]]
then
sed -Ei "/${1}/,+1 d" "$tmp"
else
sed -Ei "/${1}/ d" "$tmp"
fi
fi
}
# $1 line to delete: extended regular expression
function delete_line
{
sed -Ei "/${1}/ d" "$tmp"
}
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