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[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [po/] [exgettext] - Rev 294

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#! /bin/sh
# Wrapper around gettext for programs using the msgid convention.
# Copyright 1998, 2001, 2002, 2003, 2009 Free Software Foundation, Inc.

# Written by Paul Eggert <eggert@twinsun.com>.
# Revised by Zack Weinberg <zackw@stanford.edu> 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 3, 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 COPYING3.  If not see
# <http://www.gnu.org/licenses/>.

# 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 <xgettext> <package> <srcdir>"
        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 and %n strings from
# driver specs, so those can be translated too.
#
# All in one huge awk script.

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

( cd $srcdir
  lang_subdirs=`echo */config-lang.in */*/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 (name ~ /_n$/)
         keyword = keyword "," (n + 1)
    }
    if (format) {
        keyword=keyword "\n--flag=" name ":" n ":" format
        if (name ~ /_n$/)
          keyword = keyword "\n--flag=" name ":" (n + 1) ":" 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) {
    if (index(line, "%e") != 0 && index(line, "%n") != 0) return
    while ((percent_index = index(line, "%e")) != 0 || 
           (percent_index = index(line, "%n")) != 0) {
        line = substr(line, percent_index + 2)

        bracket_index = index(line, "}")
        newline_index = index(line, "\\n")
                
        quote_index = index(line, "\"")
        if (bracket_index == 0 && newline_index == 0) return

        if (bracket_index != 0) {
          if (quote_index != 0 && bracket_index > quote_index) return
          msgid = substr(line, 1, bracket_index - 1)
          line = substr(line, bracket_index + 1)
        }
        else if (newline_index != 0) {
          if (quote_index != 0 && quote_index > newline_index) return
          msgid = substr(line, 1, newline_index - 1)
          line = substr(line, newline_index + 1)
        }

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

        if ((newline_index = index(msgid, "\\n")) != 0)
          msgid = substr(msgid, 1, newline_index - 1)
        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 (/^(#[   ]*define[       ]*)?[A-Za-z_].*(\(|\(.*,)$/) {
                name_line = $0
                while (getline < file) {
                  lineno++
                  if (/msgid[,\)]/){
                    keyword_option(name_line $0)
                    break
                  } else if (/,$/) {
                      name_line = name_line $0
                      continue
                  } else break
                }
            } else if (/%e/ || /%n/) {
                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
                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

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