#!/bin/bash

#

# texinfo_updateSectionNodes.sh -- This function updates section's

# nodes definition files using section's menu definition file both

# inside the same chapter.

#

# Copyright (C) 2009-2013 The CentOS Project

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

#

# ----------------------------------------------------------------------

# $Id$

# ----------------------------------------------------------------------

function texinfo_updateSectionNodes {

    # Define node file.

    local NODEFILE=$(echo $MENUFILE | sed -r "s,-menu,-nodes,")

    # Build list of chapter nodes using entries from chapter menu as

    # reference.

    local NODES=$(cat ${MENUFILE} \

        | sed -r 's!^\* !!' | sed -r 's!:{1,2}.*$!!g' \

        | egrep -v '^@(end )?menu$' | sed -r 's! !:!g')

    # Build chapter nodes based on chapter menu.

    for NODE in $NODES;do

        local NODE=$(echo "${NODE}" | sed -r 's!:! !g')

        local INCL=$(echo "${NODE}" | sed -r -e 's! !/!' -e 's! !-!g' -e's!/(.+)!/\L\1!').${MANUAL_EXTENSION}

        local SECT=$(texinfo_getEntryTitle "$NODE")

        local CIND=$(texinfo_getEntryIndex "$NODE")

        # Initialize absolute path to final texinfo template.

        local TEMPLATE=''

        # Create texinfo section file using templates, only if the

        # section file doesn't exist and hasn't been marked for

        # deletion.  Otherwise, when the files have been marked for

        # deletion, they will be created again from texinfo template

        # to working copy and that might create confusion.

        if [[ ! -f ${MANUAL_BASEDIR_L10N}/$INCL ]] \

            && [[ $(cli_runFnEnvironment vcs --status ${MANUAL_BASEDIR_L10N}/$INCL) != 'D' ]];then

            # Retrieve configuration lines from configuration file. Be

            # sure no line beginning with `#' or space remain in the

            # line. Otherwise, it would be difficult to loop through

            # configuration lines.

            local CONFLINE=''

            local CONFLINES=$(cli_getConfigLines "${MANUAL_CONFIG_FILE}" "templates" "*")

            # Initialize both left hand side and right hand side

            # configuration values.

            local CONFLHS=''

            local CONFRHS=''

            # Define what section template to apply using

            # documentation entry absolute path and values provided by

            # configuration line. Be sure to break the loop in the

            # first match.

            for CONFLINE in $CONFLINES;do

                CONFLHS=$(echo $CONFLINE \

                    | gawk 'BEGIN{FS="="}; { print $1 }' \

                    | sed -r 's![[:space:]]*!!g')

                CONFRHS=$(echo $CONFLINE \

                    | gawk 'BEGIN{FS="="}; { print $2 }' \

                    | sed -r -e 's![[:space:]]*!!g' -e 's!^"(.+)"$!\1!')

                if [[ ${MANUAL_BASEDIR_L10N}/${INCL} =~ $CONFRHS ]];then

                    TEMPLATE="${MANUAL_TEMPLATE_L10N}/${CONFLHS}"

                    break

                fi

            done

            # Verify existence of texinfo template file. If no

            # template is found, stop script execution with an error

            # message. We cannot continue without it.

            cli_checkFiles -e ${TEMPLATE}

            # Create documentation entry using texinfo template as

            # reference.

            cli_runFnEnvironment vcs --copy --quiet ${TEMPLATE} ${MANUAL_BASEDIR_L10N}/$INCL

        fi

        # Expand common translation markers in documentation entry.

        cli_expandTMarkers "${MANUAL_BASEDIR_L10N}/$INCL"

        # Replace node, section and concept index definitions already

        # defined with node, section and concept index translation

        # markers. Otherwise, incorrect sectioning may happen. Take

        # care with index definitions, more than one index definition

        # might be found in the section file but only the first

        # concept index entry (i.e., `cindex') will be updated, the

        # rest will remain as they are.

        sed -i -r \

            -e '/^@node/c@node =NODE=' \

            -e '/^@section/c@section =SECT=' \

            -e '0,/^@cindex/c@cindex =CIND=' \

            "${MANUAL_BASEDIR_L10N}/$INCL" 

        # Before expanding node, section and concept index, be sure

        # that all slash characters (`/') be escaped.  Otherwise, they

        # might be interpreted as separators and that isn't

        # desirable in anyway. 

        NODE=$(echo "$NODE" | sed -r 's/\//\\\//g')

        SECT=$(echo "$SECT" | sed -r 's/\//\\\//g')

        CIND=$(echo "$CIND" | sed -r 's/\//\\\//g')

        # Expand node, section and concept index translation

        # markers in documentation entry.

        sed -i -r \

            -e "s/=NODE=/${NODE}/g" \

            -e "s/=SECT=/${SECT}/g" \

            -e "s/=CIND=/${CIND}/g" \

            "${MANUAL_BASEDIR_L10N}/$INCL"

        # Verify existence of Chapter-nodes template file. If no

        # Chapter-nodes template is found, stop script execution with

        # an error message. We cannot continue without it.

        cli_checkFiles -e ${MANUAL_TEMPLATE_L10N}/Chapters-nodes.${MANUAL_EXTENSION}

        # Expand chapter node inclusion definition.

        cat ${MANUAL_TEMPLATE_L10N}/Chapters-nodes.${MANUAL_EXTENSION} \

            | sed -r "s!=INCL=!${INCL}!g"

    # Dump chapter node definition into manual structure.

    done > ${NODEFILE}

}