Blame Scripts/Functions/Help/Backends/Texinfo/texinfo_updateChaptersMenu.sh

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#!/bin/bash
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#
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# texinfo_updateChaptersMenu.sh -- This function updates chapter menu.
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#
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# Copyright (C) 2009, 2010, 2011 The CentOS Artwork SIG
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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 texinfo_updateChaptersMenu {
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    local ACTION=$1
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    local MENUCHAPTERS=''
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    # Build menu of chapters. The Index node is not included as other
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    # nodes are. The Index node is defined inside the master texinfo
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    # file (repository.texinfo) as an included file. To create the final
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    # .info file correctly, the Index line in the menu should remain,
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    # even no other node exist.
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    if [[ -f ${MANUAL_BASEFILE}-menu.${FLAG_BACKEND} ]];then
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        MENUCHAPTERS=$(cat ${MANUAL_BASEFILE}-menu.${FLAG_BACKEND} \
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            | egrep -v "^@(end )?menu$" | egrep -v '^\* Index::$')
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    fi
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    # Re-defined menu of chapters based on action.
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    case $ACTION in
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        'remove-entry' )
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            # Remove chapter from menu.
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            MENUCHAPTERS=$(echo "${MENUCHAPTERS}" \
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                | egrep -v "^\* ${MANUAL_CHAPTER_NAME}::[[:print:]]*$")
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            ;;
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        'update-entry' | * )
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            # Update chapter menu using texinfo format.
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            MENUCHAPTERS="${MENUCHAPTERS}
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                * ${MANUAL_CHAPTER_NAME}::"
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            ;;
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    esac
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    # Remove opening spaces/tabs and empty line from the menu of
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    # chapters. Empty lines may occur the first time the menu of
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    # chapters is created.
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    MENUCHAPTERS=$(echo "${MENUCHAPTERS}" | sed -r 's!^[[:space:]]+!!' \
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        | egrep -v '^[[:space:]]*$')
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    # Organize menu of chapters alphabetically and verify that no
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    # duplicated line be included on the list.
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    MENUCHAPTERS=$(echo "${MENUCHAPTERS}" | sort | uniq)
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    # Give format to final menu output.
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    MENUCHAPTERS="@menu
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    ${MENUCHAPTERS}
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    * Index::
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    @end menu"
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    # Strip opening space/tabs from final menu of chapters.
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    MENUCHAPTERS=$(echo "${MENUCHAPTERS}" | sed -r 's!^[[:space:]]+!!' \
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        | egrep -v '^[[:space:]]*$')
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    # Dump organized menu of chapters into file.
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    echo "${MENUCHAPTERS}" > ${MANUAL_BASEFILE}-menu.${FLAG_BACKEND}
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}