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#!/bin/bash
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#
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# help_restoreCrossReferences.sh -- This function looks inside
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# texinfo source files, from section level on, and restores any cross
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# reference related to a documentation entry. This function is used in
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# those cases where documentation entries are created/recreated to
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# documentation structure. It is a verification that looks for
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# matching documentation entries previously defined as removed by
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# help_deleteCrossReferences function. The
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# help_restoreCrossReferences function relays in the removed message
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# format produced by help_deleteCrossReferences function, in order
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# to return them back into the link format.
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#
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# Copyright (C) 2009, 2010, 2011 The CentOS Project
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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 2 of the License, or (at
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# 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, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# 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, write to the Free Software
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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#
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# ----------------------------------------------------------------------
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# $Id$
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# ----------------------------------------------------------------------
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function help_restoreCrossReferences {
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local -a PATTERN
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local -a REPLACE
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local LOCATION=''
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# Define entry location. Verify first argument to make this
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# function reusable. If no value is passed as first argument use
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# entry global information value as default value instead.
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if [[ "$1" != '' ]];then
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LOCATION="$1"
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else
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LOCATION="$ENTRY"
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fi
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# Build the node string using entry location.
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local NODE=$(echo "$LOCATION" \
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| cut -d / -f7- \
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| tr '/' ' ' \
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| sed -r \
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-e "s/(chapter-intro\.texi|\.texi)$//")
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# Define regular expression patterns to match removed message
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# format produced by message_removeCrossReferences function.
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PATTERN[0]="--- @strong\{`gettext "Removed"`\}\((pxref|xref|ref):(${NODE})\) ---"
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PATTERN[1]="^@comment --- `gettext "Removed"`\((\* ${NODE}:(.*)?:(.*)?)\) ---$"
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# Define replacement string to turn removed message back to cross
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# reference link.
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REPLACE[0]='@\1{\2}'
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REPLACE[1]='\1'
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# Define list of entries to process.
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local ENTRIES=$(cli_getFilesList ${MANUAL_BASEDIR} --pattern='.*\.texi')
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# Set action preamble.
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cli_printActionPreamble "$ENTRIES" '' ''
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# Update node-related cross references. The node-related cross
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# reference definition, long ones specially, could require more
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# than one line to be set. By default, GNU sed does not matches
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# newline characters in the pattern space, so we need to make use
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# of `label' feature and the `N' command in order to build a
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# pattern space that includes the newline character in it. Here we
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# use the `a' letter to name the label we use, followed by N
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# command to add a newline to the pattern space, the s command to
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# make the pattern replacement using the `g' flag to make it
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# global and finaly the command `b' to branch label named `a'.
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sed -r -i ":a;N;s!${PATTERN[0]}!${REPLACE[0]}!g;ba" ${ENTRIES}
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# Update menu-related cross references. Menu-related cross
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# references hardly appear in more than one line, so there is no
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# need to complicate the replacement command.
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sed -r -i "s!${PATTERN[1]}!${REPLACE[1]}!" ${ENTRIES}
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}
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