gcc/po/exgettext

   1 #! /bin/sh
   2 # Wrapper around gettext for programs using the msgid convention.
   3 # Copyright (C) 1998-2014 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/common
  76 #  $srcdir/common/config
  77 #  $srcdir/common/config/*
  78 #  $srcdir/config
  79 #  $srcdir/config/*
  80 #  all subdirectories of $srcdir containing a config-lang.in file, and
  81 #    all subdirectories of those directories.
  82 # Within those directories, we examine all .c, .cc, .h, and .def files.
  83 # However, any files listed in $srcdir/po/EXCLUDE are not examined.
  84 #
  85 # Then generate keyword options for xgettext, by scanning for declarations
  86 # of functions whose parameter names end in "msgid".
  87 #
  88 # Finally, generate a source file containing all %e and %n strings from
  89 # driver specs, so those can be translated too.
  90 #
  91 # All in one huge awk script.
  92
  93 echo "scanning for keywords, %e and %n strings..." >&2
  94
  95 ( cd $srcdir
  96   lang_subdirs=`echo */config-lang.in */*/config-lang.in | sed -e 's|/config-lang\.in||g'`
  97   { for dir in "" c-family/ common/ common/config/ common/config/*/ \
  98       config/ config/*/ \
  99       `find $lang_subdirs -type d -print | fgrep -v .svn | sort | sed -e 's|$|/|'`
 100     do  for glob in '*.c' '*.cc' '*.h' '*.def'
 101         do  eval echo $dir$glob
 102         done
 103     done;
 104   } | tr ' ' "$nl" | grep -v '\*' |
 105   $AWK -v excl=po/EXCLUDES -v posr=$posr -v posrcxx=$posrcxx -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '
 106 function keyword_option(line) {
 107     paren_index = index(line, "(")
 108     name = substr(line, 1, paren_index - 1)
 109     sub(/[^0-9A-Z_a-z]*$/, "", name)
 110     sub(/[       ]+PARAMS/, "", name)
 111     sub(/[       ]+VPARAMS/, "", name)
 112     sub(/.*[^0-9A-Z_a-z]/, "", name)
 113
 114     args = substr(line, paren_index)
 115     sub(/msgid[,\)].*/, "", args)
 116     for (n = 1; sub(/^[^,]*,/, "", args); n++) {
 117         continue
 118     }
 119     format=""
 120     if (args ~ /g$/)
 121         format="gcc-internal-format"
 122     else if (args ~ /noc$/)
 123         format="no-c-format"
 124     else if (args ~ /c$/)
 125         format="c-format"
 126
 127     if (n == 1) { keyword = "--keyword=" name }
 128     else {
 129        keyword = "--keyword=" name ":" n
 130        if (name ~ /_n$/)
 131          keyword = keyword "," (n + 1)
 132     }
 133     if (format) {
 134         keyword=keyword "\n--flag=" name ":" n ":" format
 135         if (name ~ /_n$/)
 136           keyword = keyword "\n--flag=" name ":" (n + 1) ":" format
 137     }
 138
 139     if (! keyword_seen[name]) {
 140         if (format == "gcc-internal-format")
 141                 print keyword > kopt2
 142         else
 143                 print keyword > kopt
 144         keyword_seen[name] = keyword
 145     } else if (keyword_seen[name] != keyword) {
 146         printf("%s used incompatibly as both %s and %s\n",
 147                name, keyword_seen[name], keyword)
 148         exit (1)
 149     }
 150 }
 151
 152 function spec_error_string (line) {
 153     if (index(line, "%e") != 0 && index(line, "%n") != 0) return
 154     while ((percent_index = index(line, "%e")) != 0 ||
 155            (percent_index = index(line, "%n")) != 0) {
 156         line = substr(line, percent_index + 2)
 157
 158         bracket_index = index(line, "}")
 159         newline_index = index(line, "\\n")
 160
 161         quote_index = index(line, "\"")
 162         if (bracket_index == 0 && newline_index == 0) return
 163
 164         if (bracket_index != 0) {
 165           if (quote_index != 0 && bracket_index > quote_index) return
 166           msgid = substr(line, 1, bracket_index - 1)
 167           line = substr(line, bracket_index + 1)
 168         }
 169         else if (newline_index != 0) {
 170           if (quote_index != 0 && quote_index > newline_index) return
 171           msgid = substr(line, 1, newline_index - 1)
 172           line = substr(line, newline_index + 1)
 173         }
 174
 175         if (index(msgid, "%") != 0) continue
 176
 177         if ((newline_index = index(msgid, "\\n")) != 0)
 178           msgid = substr(msgid, 1, newline_index - 1)
 179         printf("#line %d \"%s\"\n", lineno, file) > emsg
 180         printf("_(\"%s\")\n", msgid) > emsg
 181     }
 182 }
 183
 184 BEGIN {
 185   while ((getline < excl) > 0) {
 186     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 187       continue
 188     excludes[$1] = 1
 189   }
 190 }
 191
 192 { if (!($0 in excludes)) {
 193     if ($0 ~ /.cc$/) {
 194       print > posrcxx
 195     } else {
 196       print > posr
 197     }
 198     files[NR] = $0
 199   }
 200 }
 201
 202 END {
 203     for (f in files) {
 204         file = files[f]
 205         lineno = 1
 206         while (getline < file) {
 207             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 208                 keyword_option($0)
 209             } else if (/^(#[   ]*define[       ]*)?[A-Za-z_].*(\(|\(.*,)$/) {
 210                 name_line = $0
 211                 while (getline < file) {
 212                   lineno++
 213                   if (/msgid[,\)]/){
 214                     keyword_option(name_line $0)
 215                     break
 216                   } else if (/,$/) {
 217                       name_line = name_line $0
 218                       continue
 219                   } else break
 220                 }
 221             } else if (/%e/ || /%n/) {
 222                 spec_error_string($0)
 223             }
 224             lineno++
 225         }
 226     }
 227     print emsg > posr
 228 }'
 229 ) || exit
 230
 231 echo "scanning option files..." >&2
 232
 233 ( cd $srcdir; find . -name '*.opt' -print |
 234   $AWK '{
 235     file = $1
 236     lineno = 1
 237     field = 0
 238     while (getline < file) {
 239         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 240             field = 0
 241         } else {
 242             if ((field == 1) && /MissingArgError/) {
 243                 line = $0
 244                 sub(".*MissingArgError\\(", "", line)
 245                 if (line ~ "^{") {
 246                         sub("^{", "", line)
 247                         sub("}\\).*", "", line)
 248                 } else
 249                         sub("\\).*", "", line)
 250                 printf("#line %d \"%s\"\n", lineno, file)
 251                 printf("_(\"%s\")\n", line)
 252             }
 253             if ((field == 1) && /UnknownError/) {
 254                 line = $0
 255                 sub(".*UnknownError\\(", "", line)
 256                 if (line ~ "^{") {
 257                         sub("^{", "", line)
 258                         sub("}\\).*", "", line)
 259                 } else
 260                         sub("\\).*", "", line)
 261                 printf("#line %d \"%s\"\n", lineno, file)
 262                 printf("_(\"%s\")\n", line)
 263             }
 264             if ((field == 1) && /Warn\(/) {
 265                 line = $0
 266                 sub(".*Warn\\(", "", line)
 267                 if (line ~ "^{") {
 268                         sub("^{", "", line)
 269                         sub("}\\).*", "", line)
 270                 } else
 271                         sub("\\).*", "", line)
 272                 printf("#line %d \"%s\"\n", lineno, file)
 273                 printf("_(\"%s\")\n", line)
 274             }
 275             if (field == 2) {
 276                 line = $0
 277                 printf("#line %d \"%s\"\n", lineno, file)
 278                 printf("_(\"%s\")\n", line)
 279             }
 280             field++;
 281         }
 282         lineno++;
 283     }
 284   }') >> $emsg
 285
 286 # Run the xgettext commands, with temporary added as a file to scan.
 287 echo "running xgettext..." >&2
 288 $xgettext --default-domain=$package --directory=$srcdir \
 289           --add-comments `cat $kopt` --files-from=$posr \
 290           --copyright-holder="Free Software Foundation, Inc." \
 291           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 292           --language=c -o $pottmp1
 293 if test -s $posrcxx; then
 294   $xgettext --default-domain=$package --directory=$srcdir \
 295             --add-comments `cat $kopt` --files-from=$posrcxx \
 296             --copyright-holder="Free Software Foundation, Inc." \
 297             --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 298             --language=c++ -o $pottmp2
 299 else
 300   echo > $pottmp2
 301 fi
 302 $xgettext --default-domain=$package --directory=$srcdir \
 303           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 304           --copyright-holder="Free Software Foundation, Inc." \
 305           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 306           --language=GCC-source -o $pottmp3
 307 $xgettext --default-domain=$package \
 308           --add-comments $pottmp1 $pottmp2 $pottmp3 \
 309           --copyright-holder="Free Software Foundation, Inc." \
 310           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 311           --language=PO -o $pottmp
 312 # Remove local paths from .pot file.
 313 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot