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split-lines.sh
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split-lines.sh
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#!/usr/bin/env sh
#
# NAME
# split-lines.sh - Split long vCard lines
#
# SYNOPSIS
# split-lines.sh FILE...
#
# DESCRIPTION
# Simply inserts the sequence CR, LF, space to make every line 75
# characters (excluding CR and LF).
#
# BUGS
# https://github.com/l0b0/vcard/issues
#
# COPYRIGHT
# Copyright (C) 2012 Victor Engmark
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program 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 General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
################################################################################
sed -e '{ s/\(.\{75\}\)\([^\r]\)/\1\r\n \2/; P; D }' "$@"