Blame Scripts/Functions/Help/Texinfo/texinfo_updateSectionMenu.sh

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#!/bin/bash
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#
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# texinfo_updateSectionMenu.sh -- This function updates the section's
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# menu definition file of a chapter.  If this function is called with
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# the '--delete-entry' string as first argument, the menu line related
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# to the entry being processed is removed. Otherwise, if this function
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# is called with the '--add-entry' string as first argument, the menu
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# line related to the entry being processed is added to menu's bottom.
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# If no argument is passed to this function, the '--add-entry' action
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# is assumed.
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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 texinfo_updateSectionMenu {
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    # Specify which action to do with documentation entry inside the
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    # chapter menu.
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    local ACTION="$1"
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    # Define section order. Through this property you can customize
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    # the section order inside the manual.  Possible arguments to this
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    # option are `ordered', `reversed', `created'.  From these three
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    # values `created' is used by default (i.e., new menu entries are
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    # added to menu's bottom as last entry.).  Notice that, once
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    # you've sorted the menu using `ordered' or `reversed' values, it
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    # is hard to sort the list back to former creation orders. Go
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    # sorted or not sorted at all.
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    local MANUAL_SECTION_ORDER=$(cli_getConfigValue "${MANUAL_CONFIG_FILE}" "main" "manual_section_order")
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    if [[ ! $MANUAL_SECTION_ORDER =~ '^(created|ordered|reversed)$' ]];then
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        MANUAL_SECTION_ORDER='created'
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    fi
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    # Build node information used inside chapter menu.
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    local MENUNODE=$(${FLAG_BACKEND}_getEntryNode "$MANUAL_ENTRY")
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    # Define menu entry using texinfo style and node information as
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    # reference.
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    local MENULINE="* ${MENUNODE}::" 
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    # Retrive list of menu entries from chapter menu and exclude
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    # `@menu', `@end menu' and empty lines from output.
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    local MENU=$(cat $(dirname ${MANUAL_ENTRY})/chapter-menu.${MANUAL_EXTENSION} \
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        | egrep -v '^[[:space:]]*$' | egrep -v '^@(end )?menu')
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    # Re-defined chapter menu entries based on action provided to this
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    # function as first positional parameter.
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    case $ACTION in
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        --delete-entry )
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            # Remove menu entry from chapter menu.
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            MENU="$(echo "$MENU" | egrep -v "$MENULINE")"
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            ;;
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        --add-entry | * )
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            # Add menu entry to chapter menu list as last entry.
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            MENU="$(echo "$MENU" | egrep -v "$MENULINE" )
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                ${MENULINE}"
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            ;;
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    esac
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    # Remove opening spaces/tabs and empty lines from final menu
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    # entries.
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    MENU=$(echo "$MENU" | sed -r 's!^[[:space:]]+!!g' \
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        | egrep -v '^[[:space:]]*$')
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    # Sort menu entries based on section order property.
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    case $MANUAL_SECTION_ORDER in
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        'ordered' )
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            MENU="$(echo "$MENU" | sort )"
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            ;;
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        'reversed' )
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            MENU="$(echo "$MENU" | sort -r )"
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            ;;
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    esac
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    # Rebuild list of chapter menu entries including '@menu' and '@end
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    # menu' lines back into chapter menu.
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    MENU="@menu
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    $MENU
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    @end menu"
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    # Remove opening spaces/tabs and empty lines from final menu
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    # structure.
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    MENU=$(echo "$MENU" | sed -r 's!^[[:space:]]+!!g' \
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        | egrep -v '^[[:space:]]*$')
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    # Dump chapter menu entries back into chapter's menu definition
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    # file.
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    echo "$MENU" > $(dirname ${MANUAL_ENTRY})/chapter-menu.${MANUAL_EXTENSION}
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}