gcc/po/exgettext

   1 #! /bin/sh
   2 # Wrapper around gettext for programs using the msgid convention.
   3 # Copyright 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
   4
   5 # Written by Paul Eggert <eggert@twinsun.com>.
   6 # Revised by Zack Weinberg <zackw@stanford.edu> for no-POTFILES operation.
   7
   8 # This file is part of GCC.
   9
  10 # GCC is free software; you can redistribute it and/or modify
  11 # it under the terms of the GNU General Public License as published by
  12 # the Free Software Foundation; either version 2, or (at your option)
  13 # any later version.
  14
  15 # GCC is distributed in the hope that it will be useful,
  16 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 # GNU General Public License for more details.
  19
  20 # You should have received a copy of the GNU General Public License
  21 # along with GCC; see the file COPYING.  If not, write to
  22 # the Free Software Foundation, 59 Temple Place - Suite 330,
  23 # Boston, MA 02111-1307, USA.
  24
  25 # Always operate in the C locale.
  26 LANG=C
  27 LANGUAGE=C
  28 LC_ALL=C
  29 export LANG LANGUAGE LC_ALL
  30
  31 # Set AWK if environment has not already set it.
  32 AWK=${AWK-awk}
  33
  34 # The arguments to this wrapper are: the program to execute, the
  35 # name of the "package", and the path to the source directory.
  36
  37 if [ $# -ne 3 ]
  38 then    echo "usage: $0 <xgettext> <package> <srcdir>"
  39         exit 1
  40 fi
  41
  42 xgettext=$1
  43 package=$2
  44 srcdir=$3
  45
  46 case `$xgettext --version | sed -e 1q | sed -e 's/^\([^0-9]*\)//'` in
  47   0.14.[5-9]* | 0.14.[1-9][0-9]* | 0.1[5-9]* | 0.[2-9][0-9]* | [1-9].*) : ;;
  48   *) echo "$xgettext is too old.  GNU xgettext 0.14.5 is required"
  49      exit 1 ;;
  50 esac
  51
  52 nl='
  53 '
  54
  55 set -e
  56
  57 # Create temporary directory for scratch files.
  58 T=exg$$.d
  59 mkdir $T
  60 trap "rm -r $T" 0
  61
  62 pwd=`${PWDCMD-pwd}`
  63 kopt=$pwd/$T/keyword-options
  64 kopt2=$pwd/$T/keyword2-options
  65 emsg=$pwd/$T/emsgids.c
  66 posr=$pwd/$T/po-sources
  67 pottmp1=$pwd/$T/tmp1.pot
  68 pottmp2=$pwd/$T/tmp2.pot
  69 pottmp=$pwd/$T/tmp.pot
  70
  71 # Locate files to scan, and generate the list.  All .c, .h, and .def files
  72 # in $srcdir are examined, likewise $srcdir/config and $srcdir/config/*
  73 # (directories).  Also, all subdirectories of $srcdir that contain a
  74 # config-lang.in.  Exclusions come from $srcdir/po/EXCLUDE.
  75 #
  76 # Then generate keyword options for xgettext, by scanning for declarations
  77 # of functions whose parameter names end in "msgid".
  78 #
  79 # Finally, generate a source file containing all %e strings from
  80 # driver specs, so those can be translated too.
  81 #
  82 # All in one huge awk script.
  83
  84 echo "scanning for keywords and %e strings..." >&2
  85
  86 ( cd $srcdir
  87   lang_subdirs=`echo */config-lang.in | sed -e 's|config-lang\.in||g'`
  88   { for dir in "" config/ config/*/ $lang_subdirs
  89     do  for glob in '*.c' '*.h' '*.def'
  90         do  eval echo $dir$glob
  91         done
  92     done;
  93   } | tr ' ' "$nl" | grep -v '\*' |
  94   $AWK -v excl=po/EXCLUDES -v posr=$posr -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '
  95 function keyword_option(line) {
  96     paren_index = index(line, "(")
  97     name = substr(line, 1, paren_index - 1)
  98     sub(/[^0-9A-Z_a-z]*$/, "", name)
  99     sub(/[       ]+PARAMS/, "", name)
 100     sub(/[       ]+VPARAMS/, "", name)
 101     sub(/.*[^0-9A-Z_a-z]/, "", name)
 102
 103     args = substr(line, paren_index)
 104     sub(/msgid[,\)].*/, "", args)
 105     for (n = 1; sub(/^[^,]*,/, "", args); n++) {
 106         continue
 107     }
 108     format=""
 109     if (args ~ /g$/)
 110         format="gcc-internal-format"
 111     else if (args ~ /c$/)
 112         format="c-format"
 113
 114     if (n == 1) { keyword = "--keyword=" name }
 115     else { keyword = "--keyword=" name ":" n }
 116     if (format) {
 117         keyword=keyword "\n--flag=" name ":" n ":" format
 118     }
 119
 120     if (! keyword_seen[name]) {
 121         if (format == "gcc-internal-format")
 122                 print keyword > kopt2
 123         else
 124                 print keyword > kopt
 125         keyword_seen[name] = keyword
 126     } else if (keyword_seen[name] != keyword) {
 127         printf("%s used incompatibly as both %s and %s\n",
 128                name, keyword_seen[name], keyword)
 129         exit (1)
 130     }
 131 }
 132
 133 function spec_error_string (line) {
 134     while ((percent_index = index(line, "%e")) != 0) {
 135         escape = substr(line, percent_index - 1, 1)
 136         line = substr(line, percent_index + 2)
 137         if (escape == "%") continue
 138
 139         bracket_index = index(line, "}")
 140         quote_index = index(line, "\"")
 141         if (bracket_index == 0) return
 142         if (quote_index != 0 && bracket_index > quote_index) return
 143
 144         msgid = substr(line, 1, bracket_index - 1)
 145         line = substr(line, bracket_index + 1)
 146
 147         if (index(msgid, "%") != 0) continue
 148
 149         printf("#line %d \"%s\"\n", lineno, file) > emsg
 150         printf("_(\"%s\")\n", msgid) > emsg
 151
 152     }
 153 }
 154
 155 BEGIN {
 156   while ((getline < excl) > 0) {
 157     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 158       continue
 159     excludes[$1] = 1
 160   }
 161 }
 162
 163 { if (!($0 in excludes)) {
 164     print > posr
 165     files[NR] = $0
 166   }
 167 }
 168
 169 END {
 170     for (f in files) {
 171         file = files[f]
 172         lineno = 1
 173         while (getline < file) {
 174             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 175                 keyword_option($0)
 176             } else if (/%e/) {
 177                 spec_error_string($0)
 178             }
 179             lineno++
 180         }
 181     }
 182     print emsg > posr
 183 }'
 184 ) || exit
 185
 186 echo "scanning option files..." >&2
 187
 188 ( cd $srcdir; find . -name '*.opt' -print |
 189   $AWK '{
 190     file = $1
 191     lineno = 1
 192     field = 0
 193     while (getline < file) {
 194         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 195             field = 0
 196         } else {
 197             if (field == 2) {
 198                 line = $0
 199                 gsub(".*\t", "", line)
 200                 printf("#line %d \"%s\"\n", lineno, file)
 201                 printf("_(\"%s\")\n", line)
 202             }
 203             field++;
 204         }
 205         lineno++;
 206     }
 207   }') >> $emsg
 208
 209 # Run the xgettext command, with temporary added as a file to scan.
 210 echo "running xgettext..." >&2
 211 $xgettext --default-domain=$package --directory=$srcdir \
 212           --add-comments `cat $kopt` --files-from=$posr \
 213           --copyright-holder="Free Software Foundation, Inc." \
 214           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 215           --language=c -o $pottmp1
 216 $xgettext --default-domain=$package --directory=$srcdir \
 217           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 218           --copyright-holder="Free Software Foundation, Inc." \
 219           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 220           --language=GCC-source -o $pottmp2
 221 $xgettext --default-domain=$package \
 222           --add-comments $pottmp1 $pottmp2 \
 223           --copyright-holder="Free Software Foundation, Inc." \
 224           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 225           --language=PO -o $pottmp
 226 # Remove local paths from .pot file.
 227 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot