gcc/po/exgettext

   1 #! /bin/sh
   2 # Wrapper around gettext for programs using the msgid convention.
   3 # Copyright 1998, 2001, 2002, 2003, 2009 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 3, 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 COPYING3.  If not see
  22 # <http://www.gnu.org/licenses/>.
  23
  24 # Always operate in the C locale.
  25 LANG=C
  26 LANGUAGE=C
  27 LC_ALL=C
  28 export LANG LANGUAGE LC_ALL
  29
  30 # Set AWK if environment has not already set it.
  31 AWK=${AWK-awk}
  32
  33 # The arguments to this wrapper are: the program to execute, the
  34 # name of the "package", and the path to the source directory.
  35
  36 if [ $# -ne 3 ]
  37 then    echo "usage: $0 <xgettext> <package> <srcdir>"
  38         exit 1
  39 fi
  40
  41 xgettext=$1
  42 package=$2
  43 srcdir=$3
  44
  45 case `$xgettext --version | sed -e 1q | sed -e 's/^\([^0-9]*\)//'` in
  46   0.14.[5-9]* | 0.14.[1-9][0-9]* | 0.1[5-9]* | 0.[2-9][0-9]* | [1-9].*) : ;;
  47   *) echo "$xgettext is too old.  GNU xgettext 0.14.5 is required"
  48      exit 1 ;;
  49 esac
  50
  51 nl='
  52 '
  53
  54 set -e
  55
  56 # Create temporary directory for scratch files.
  57 T=exg$$.d
  58 mkdir $T
  59 trap "rm -r $T" 0
  60
  61 pwd=`${PWDCMD-pwd}`
  62 kopt=$pwd/$T/keyword-options
  63 kopt2=$pwd/$T/keyword2-options
  64 emsg=$pwd/$T/emsgids.c
  65 posr=$pwd/$T/po-sources
  66 pottmp1=$pwd/$T/tmp1.pot
  67 pottmp2=$pwd/$T/tmp2.pot
  68 pottmp=$pwd/$T/tmp.pot
  69
  70 # Locate files to scan, and generate the list.  All .c, .h, and .def files
  71 # in $srcdir are examined, likewise $srcdir/config and $srcdir/config/*
  72 # (directories).  Also, all subdirectories of $srcdir that contain a
  73 # config-lang.in.  Exclusions come from $srcdir/po/EXCLUDE.
  74 #
  75 # Then generate keyword options for xgettext, by scanning for declarations
  76 # of functions whose parameter names end in "msgid".
  77 #
  78 # Finally, generate a source file containing all %e strings from
  79 # driver specs, so those can be translated too.
  80 #
  81 # All in one huge awk script.
  82
  83 echo "scanning for keywords and %e strings..." >&2
  84
  85 ( cd $srcdir
  86   lang_subdirs=`echo */config-lang.in */*/config-lang.in | sed -e 's|config-lang\.in||g'`
  87   { for dir in "" config/ config/*/ $lang_subdirs
  88     do  for glob in '*.c' '*.h' '*.def'
  89         do  eval echo $dir$glob
  90         done
  91     done;
  92   } | tr ' ' "$nl" | grep -v '\*' |
  93   $AWK -v excl=po/EXCLUDES -v posr=$posr -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '
  94 function keyword_option(line) {
  95     paren_index = index(line, "(")
  96     name = substr(line, 1, paren_index - 1)
  97     sub(/[^0-9A-Z_a-z]*$/, "", name)
  98     sub(/[       ]+PARAMS/, "", name)
  99     sub(/[       ]+VPARAMS/, "", name)
 100     sub(/.*[^0-9A-Z_a-z]/, "", name)
 101
 102     args = substr(line, paren_index)
 103     sub(/msgid[,\)].*/, "", args)
 104     for (n = 1; sub(/^[^,]*,/, "", args); n++) {
 105         continue
 106     }
 107     format=""
 108     if (args ~ /g$/)
 109         format="gcc-internal-format"
 110     else if (args ~ /noc$/)
 111         format="no-c-format"
 112     else if (args ~ /c$/)
 113         format="c-format"
 114
 115     if (n == 1) { keyword = "--keyword=" name }
 116     else { keyword = "--keyword=" name ":" n }
 117     if (format) {
 118         keyword=keyword "\n--flag=" name ":" n ":" format
 119     }
 120
 121     if (! keyword_seen[name]) {
 122         if (format == "gcc-internal-format")
 123                 print keyword > kopt2
 124         else
 125                 print keyword > kopt
 126         keyword_seen[name] = keyword
 127     } else if (keyword_seen[name] != keyword) {
 128         printf("%s used incompatibly as both %s and %s\n",
 129                name, keyword_seen[name], keyword)
 130         exit (1)
 131     }
 132 }
 133
 134 function spec_error_string (line) {
 135     while ((percent_index = index(line, "%e")) != 0) {
 136         escape = substr(line, percent_index - 1, 1)
 137         line = substr(line, percent_index + 2)
 138         if (escape == "%") continue
 139
 140         bracket_index = index(line, "}")
 141         quote_index = index(line, "\"")
 142         if (bracket_index == 0) return
 143         if (quote_index != 0 && bracket_index > quote_index) return
 144
 145         msgid = substr(line, 1, bracket_index - 1)
 146         line = substr(line, bracket_index + 1)
 147
 148         if (index(msgid, "%") != 0) continue
 149
 150         printf("#line %d \"%s\"\n", lineno, file) > emsg
 151         printf("_(\"%s\")\n", msgid) > emsg
 152
 153     }
 154 }
 155
 156 BEGIN {
 157   while ((getline < excl) > 0) {
 158     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 159       continue
 160     excludes[$1] = 1
 161   }
 162 }
 163
 164 { if (!($0 in excludes)) {
 165     print > posr
 166     files[NR] = $0
 167   }
 168 }
 169
 170 END {
 171     for (f in files) {
 172         file = files[f]
 173         lineno = 1
 174         while (getline < file) {
 175             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 176                 keyword_option($0)
 177             } else if (/%e/) {
 178                 spec_error_string($0)
 179             }
 180             lineno++
 181         }
 182     }
 183     print emsg > posr
 184 }'
 185 ) || exit
 186
 187 echo "scanning option files..." >&2
 188
 189 ( cd $srcdir; find . -name '*.opt' -print |
 190   $AWK '{
 191     file = $1
 192     lineno = 1
 193     field = 0
 194     while (getline < file) {
 195         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 196             field = 0
 197         } else {
 198             if (field == 2) {
 199                 line = $0
 200                 gsub(".*\t", "", line)
 201                 printf("#line %d \"%s\"\n", lineno, file)
 202                 printf("_(\"%s\")\n", line)
 203             }
 204             field++;
 205         }
 206         lineno++;
 207     }
 208   }') >> $emsg
 209
 210 # Run the xgettext command, with temporary added as a file to scan.
 211 echo "running xgettext..." >&2
 212 $xgettext --default-domain=$package --directory=$srcdir \
 213           --add-comments `cat $kopt` --files-from=$posr \
 214           --copyright-holder="Free Software Foundation, Inc." \
 215           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 216           --language=c -o $pottmp1
 217 $xgettext --default-domain=$package --directory=$srcdir \
 218           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 219           --copyright-holder="Free Software Foundation, Inc." \
 220           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 221           --language=GCC-source -o $pottmp2
 222 $xgettext --default-domain=$package \
 223           --add-comments $pottmp1 $pottmp2 \
 224           --copyright-holder="Free Software Foundation, Inc." \
 225           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 226           --language=PO -o $pottmp
 227 # Remove local paths from .pot file.
 228 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot