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#! /bin/sh

# Wrapper around gettext for programs using the msgid convention.

# Copyright 1998, 2001, 2002, 2003 Free Software Foundation, Inc.

# Written by Paul Eggert .

# Revised by Zack Weinberg  for no-POTFILES operation.

# This file is part of GCC.

# GCC 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, or (at your option)

# any later version.

# GCC 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 GCC; see the file COPYING.  If not, write to

# the Free Software Foundation, 51 Franklin Street, Fifth Floor,

# Boston, MA 02110-1301, USA.

# Always operate in the C locale.

LANG=C

LANGUAGE=C

LC_ALL=C

export LANG LANGUAGE LC_ALL

# Set AWK if environment has not already set it.

AWK=${AWK-awk}

# The arguments to this wrapper are: the program to execute, the

# name of the "package", and the path to the source directory.

if [ $# -ne 3 ]

then    echo "usage: $0   "

        exit 1

fi

xgettext=$1

package=$2

srcdir=$3

case `$xgettext --version | sed -e 1q | sed -e 's/^\([^0-9]*\)//'` in

  0.14.[5-9]* | 0.14.[1-9][0-9]* | 0.1[5-9]* | 0.[2-9][0-9]* | [1-9].*) : ;;

  *) echo "$xgettext is too old.  GNU xgettext 0.14.5 is required"

     exit 1 ;;

esac

nl='

'

set -e

# Create temporary directory for scratch files.

T=exg$$.d

mkdir $T

trap "rm -r $T" 0

pwd=`${PWDCMD-pwd}`

kopt=$pwd/$T/keyword-options

kopt2=$pwd/$T/keyword2-options

emsg=$pwd/$T/emsgids.c

posr=$pwd/$T/po-sources

pottmp1=$pwd/$T/tmp1.pot

pottmp2=$pwd/$T/tmp2.pot

pottmp=$pwd/$T/tmp.pot

# Locate files to scan, and generate the list.  All .c, .h, and .def files

# in $srcdir are examined, likewise $srcdir/config and $srcdir/config/*

# (directories).  Also, all subdirectories of $srcdir that contain a

# config-lang.in.  Exclusions come from $srcdir/po/EXCLUDE.

#

# Then generate keyword options for xgettext, by scanning for declarations

# of functions whose parameter names end in "msgid".

#

# Finally, generate a source file containing all %e strings from

# driver specs, so those can be translated too.

#

# All in one huge awk script.

echo "scanning for keywords and %e strings..." >&2

( cd $srcdir

  lang_subdirs=`echo */config-lang.in | sed -e 's|config-lang\.in||g'`

  { for dir in "" config/ config/*/ $lang_subdirs

    do  for glob in '*.c' '*.h' '*.def'

        do  eval echo $dir$glob

        done

    done;

  } | tr ' ' "$nl" | grep -v '\*' |

  $AWK -v excl=po/EXCLUDES -v posr=$posr -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '

function keyword_option(line) {

    paren_index = index(line, "(")

    name = substr(line, 1, paren_index - 1)

    sub(/[^0-9A-Z_a-z]*$/, "", name)

    sub(/[       ]+PARAMS/, "", name)

    sub(/[       ]+VPARAMS/, "", name)

    sub(/.*[^0-9A-Z_a-z]/, "", name)

    args = substr(line, paren_index)

    sub(/msgid[,\)].*/, "", args)

    for (n = 1; sub(/^[^,]*,/, "", args); n++) {

        continue

    }

    format=""

    if (args ~ /g$/)

        format="gcc-internal-format"

    else if (args ~ /noc$/)

        format="no-c-format"

    else if (args ~ /c$/)

        format="c-format"

    if (n == 1) { keyword = "--keyword=" name }

    else { keyword = "--keyword=" name ":" n }

    if (format) {

        keyword=keyword "\n--flag=" name ":" n ":" format

    }

    if (! keyword_seen[name]) {

        if (format == "gcc-internal-format")

                print keyword > kopt2

        else

                print keyword > kopt

        keyword_seen[name] = keyword

    } else if (keyword_seen[name] != keyword) {

        printf("%s used incompatibly as both %s and %s\n",

               name, keyword_seen[name], keyword)

        exit (1)

    }

}

function spec_error_string (line) {

    while ((percent_index = index(line, "%e")) != 0) {

        escape = substr(line, percent_index - 1, 1)

        line = substr(line, percent_index + 2)

        if (escape == "%") continue

        bracket_index = index(line, "}")

        quote_index = index(line, "\"")

        if (bracket_index == 0) return

        if (quote_index != 0 && bracket_index > quote_index) return

        msgid = substr(line, 1, bracket_index - 1)

        line = substr(line, bracket_index + 1)

        if (index(msgid, "%") != 0) continue

        printf("#line %d \"%s\"\n", lineno, file) > emsg

        printf("_(\"%s\")\n", msgid) > emsg

    }

}

BEGIN {

  while ((getline < excl) > 0) {

    if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)

      continue

    excludes[$1] = 1

  }

}

{ if (!($0 in excludes)) {

    print > posr

    files[NR] = $0

  }

}

END {

    for (f in files) {

        file = files[f]

        lineno = 1

        while (getline < file) {

            if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {

                keyword_option($0)

            } else if (/%e/) {

                spec_error_string($0)

            }

            lineno++

        }

    }

    print emsg > posr

}'

) || exit

echo "scanning option files..." >&2

( cd $srcdir; find . -name '*.opt' -print |

  $AWK '{

    file = $1

    lineno = 1

    field = 0

    while (getline < file) {

        if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {

            field = 0

        } else {

            if (field == 2) {

                line = $0

                gsub(".*\t", "", line)

                printf("#line %d \"%s\"\n", lineno, file)

                printf("_(\"%s\")\n", line)

            }

            field++;

        }

        lineno++;

    }

  }') >> $emsg

# Run the xgettext command, with temporary added as a file to scan.

echo "running xgettext..." >&2

$xgettext --default-domain=$package --directory=$srcdir \

          --add-comments `cat $kopt` --files-from=$posr \

          --copyright-holder="Free Software Foundation, Inc." \

          --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \

          --language=c -o $pottmp1

$xgettext --default-domain=$package --directory=$srcdir \

          --add-comments --keyword= `cat $kopt2` --files-from=$posr \

          --copyright-holder="Free Software Foundation, Inc." \

          --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \

          --language=GCC-source -o $pottmp2

$xgettext --default-domain=$package \

          --add-comments $pottmp1 $pottmp2 \

          --copyright-holder="Free Software Foundation, Inc." \

          --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \

          --language=PO -o $pottmp

# Remove local paths from .pot file.

sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot