gcc/po/exgettext

   1 #! /bin/sh
   2 # Wrapper around gettext for programs using the msgid convention.
   3 # Copyright 1998, 2001, 2002, 2003, 2009, 2010 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 posrcxx=$pwd/$T/po-cxx-sources
  67 pottmp1=$pwd/$T/tmp1.pot
  68 pottmp2=$pwd/$T/tmp2.pot
  69 pottmp3=$pwd/$T/tmp3.pot
  70 pottmp=$pwd/$T/tmp.pot
  71
  72 # Locate files to scan.  We scan the following directories:
  73 #  $srcdir
  74 #  $srcdir/c-family
  75 #  $srcdir/config
  76 #  $srcdir/config/*
  77 #  all subdirectories of $srcdir containing a config-lang.in file, and
  78 #    all subdirectories of those directories.
  79 # Within those directories, we examine all .c, .cc, .h, and .def files.
  80 # However, any files listed in $srcdir/po/EXCLUDE are not examined.
  81 #
  82 # Then generate keyword options for xgettext, by scanning for declarations
  83 # of functions whose parameter names end in "msgid".
  84 #
  85 # Finally, generate a source file containing all %e and %n strings from
  86 # driver specs, so those can be translated too.
  87 #
  88 # All in one huge awk script.
  89
  90 echo "scanning for keywords, %e and %n strings..." >&2
  91
  92 ( cd $srcdir
  93   lang_subdirs=`echo */config-lang.in */*/config-lang.in | sed -e 's|/config-lang\.in||g'`
  94   { for dir in "" c-family/ config/ config/*/ \
  95       `find $lang_subdirs -type d -print | fgrep -v .svn | sort | sed -e 's|$|/|'`
  96     do  for glob in '*.c' '*.cc' '*.h' '*.def'
  97         do  eval echo $dir$glob
  98         done
  99     done;
 100   } | tr ' ' "$nl" | grep -v '\*' |
 101   $AWK -v excl=po/EXCLUDES -v posr=$posr -v posrcxx=$posrcxx -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '
 102 function keyword_option(line) {
 103     paren_index = index(line, "(")
 104     name = substr(line, 1, paren_index - 1)
 105     sub(/[^0-9A-Z_a-z]*$/, "", name)
 106     sub(/[       ]+PARAMS/, "", name)
 107     sub(/[       ]+VPARAMS/, "", name)
 108     sub(/.*[^0-9A-Z_a-z]/, "", name)
 109
 110     args = substr(line, paren_index)
 111     sub(/msgid[,\)].*/, "", args)
 112     for (n = 1; sub(/^[^,]*,/, "", args); n++) {
 113         continue
 114     }
 115     format=""
 116     if (args ~ /g$/)
 117         format="gcc-internal-format"
 118     else if (args ~ /noc$/)
 119         format="no-c-format"
 120     else if (args ~ /c$/)
 121         format="c-format"
 122
 123     if (n == 1) { keyword = "--keyword=" name }
 124     else {
 125        keyword = "--keyword=" name ":" n
 126        if (name ~ /_n$/)
 127          keyword = keyword "," (n + 1)
 128     }
 129     if (format) {
 130         keyword=keyword "\n--flag=" name ":" n ":" format
 131         if (name ~ /_n$/)
 132           keyword = keyword "\n--flag=" name ":" (n + 1) ":" format
 133     }
 134
 135     if (! keyword_seen[name]) {
 136         if (format == "gcc-internal-format")
 137                 print keyword > kopt2
 138         else
 139                 print keyword > kopt
 140         keyword_seen[name] = keyword
 141     } else if (keyword_seen[name] != keyword) {
 142         printf("%s used incompatibly as both %s and %s\n",
 143                name, keyword_seen[name], keyword)
 144         exit (1)
 145     }
 146 }
 147
 148 function spec_error_string (line) {
 149     if (index(line, "%e") != 0 && index(line, "%n") != 0) return
 150     while ((percent_index = index(line, "%e")) != 0 ||
 151            (percent_index = index(line, "%n")) != 0) {
 152         line = substr(line, percent_index + 2)
 153
 154         bracket_index = index(line, "}")
 155         newline_index = index(line, "\\n")
 156
 157         quote_index = index(line, "\"")
 158         if (bracket_index == 0 && newline_index == 0) return
 159
 160         if (bracket_index != 0) {
 161           if (quote_index != 0 && bracket_index > quote_index) return
 162           msgid = substr(line, 1, bracket_index - 1)
 163           line = substr(line, bracket_index + 1)
 164         }
 165         else if (newline_index != 0) {
 166           if (quote_index != 0 && quote_index > newline_index) return
 167           msgid = substr(line, 1, newline_index - 1)
 168           line = substr(line, newline_index + 1)
 169         }
 170
 171         if (index(msgid, "%") != 0) continue
 172
 173         if ((newline_index = index(msgid, "\\n")) != 0)
 174           msgid = substr(msgid, 1, newline_index - 1)
 175         printf("#line %d \"%s\"\n", lineno, file) > emsg
 176         printf("_(\"%s\")\n", msgid) > emsg
 177     }
 178 }
 179
 180 BEGIN {
 181   while ((getline < excl) > 0) {
 182     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 183       continue
 184     excludes[$1] = 1
 185   }
 186 }
 187
 188 { if (!($0 in excludes)) {
 189     if ($0 ~ /.cc$/) {
 190       print > posrcxx
 191     } else {
 192       print > posr
 193     }
 194     files[NR] = $0
 195   }
 196 }
 197
 198 END {
 199     for (f in files) {
 200         file = files[f]
 201         lineno = 1
 202         while (getline < file) {
 203             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 204                 keyword_option($0)
 205             } else if (/^(#[   ]*define[       ]*)?[A-Za-z_].*(\(|\(.*,)$/) {
 206                 name_line = $0
 207                 while (getline < file) {
 208                   lineno++
 209                   if (/msgid[,\)]/){
 210                     keyword_option(name_line $0)
 211                     break
 212                   } else if (/,$/) {
 213                       name_line = name_line $0
 214                       continue
 215                   } else break
 216                 }
 217             } else if (/%e/ || /%n/) {
 218                 spec_error_string($0)
 219             }
 220             lineno++
 221         }
 222     }
 223     print emsg > posr
 224 }'
 225 ) || exit
 226
 227 echo "scanning option files..." >&2
 228
 229 ( cd $srcdir; find . -name '*.opt' -print |
 230   $AWK '{
 231     file = $1
 232     lineno = 1
 233     field = 0
 234     while (getline < file) {
 235         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 236             field = 0
 237         } else {
 238             if ((field == 1) && /MissingArgError/) {
 239                 line = $0
 240                 sub(".*MissingArgError\\(", "", line)
 241                 if (line ~ "^{") {
 242                         sub("^{", "", line)
 243                         sub("}\\).*", "", line)
 244                 } else
 245                         sub("\\).*", "", line)
 246                 printf("#line %d \"%s\"\n", lineno, file)
 247                 printf("_(\"%s\")\n", line)
 248             }
 249             if ((field == 1) && /UnknownError/) {
 250                 line = $0
 251                 sub(".*UnknownError\\(", "", line)
 252                 if (line ~ "^{") {
 253                         sub("^{", "", line)
 254                         sub("}\\).*", "", line)
 255                 } else
 256                         sub("\\).*", "", line)
 257                 printf("#line %d \"%s\"\n", lineno, file)
 258                 printf("_(\"%s\")\n", line)
 259             }
 260             if ((field == 1) && /Warn\(/) {
 261                 line = $0
 262                 sub(".*Warn\\(", "", line)
 263                 if (line ~ "^{") {
 264                         sub("^{", "", line)
 265                         sub("}\\).*", "", line)
 266                 } else
 267                         sub("\\).*", "", line)
 268                 printf("#line %d \"%s\"\n", lineno, file)
 269                 printf("_(\"%s\")\n", line)
 270             }
 271             if (field == 2) {
 272                 line = $0
 273                 printf("#line %d \"%s\"\n", lineno, file)
 274                 printf("_(\"%s\")\n", line)
 275             }
 276             field++;
 277         }
 278         lineno++;
 279     }
 280   }') >> $emsg
 281
 282 # Run the xgettext commands, with temporary added as a file to scan.
 283 echo "running xgettext..." >&2
 284 $xgettext --default-domain=$package --directory=$srcdir \
 285           --add-comments `cat $kopt` --files-from=$posr \
 286           --copyright-holder="Free Software Foundation, Inc." \
 287           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 288           --language=c -o $pottmp1
 289 if test -s $posrcxx; then
 290   $xgettext --default-domain=$package --directory=$srcdir \
 291             --add-comments `cat $kopt` --files-from=$posrcxx \
 292             --copyright-holder="Free Software Foundation, Inc." \
 293             --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 294             --language=c++ -o $pottmp2
 295 else
 296   echo > $pottmp2
 297 fi
 298 $xgettext --default-domain=$package --directory=$srcdir \
 299           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 300           --copyright-holder="Free Software Foundation, Inc." \
 301           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 302           --language=GCC-source -o $pottmp3
 303 $xgettext --default-domain=$package \
 304           --add-comments $pottmp1 $pottmp2 $pottmp3 \
 305           --copyright-holder="Free Software Foundation, Inc." \
 306           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 307           --language=PO -o $pottmp
 308 # Remove local paths from .pot file.
 309 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot