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 and %n 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, %e and %n 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$/)
 113         format="c-format"
 114
 115     if (n == 1) { keyword = "--keyword=" name }
 116     else {
 117        keyword = "--keyword=" name ":" n
 118        if (name ~ /_n$/)
 119          keyword = keyword "," (n + 1)
 120     }
 121     if (format) {
 122         keyword=keyword "\n--flag=" name ":" n ":" format
 123         if (name ~ /_n$/)
 124           keyword = keyword "\n--flag=" name ":" (n + 1) ":" format
 125     }
 126
 127     if (! keyword_seen[name]) {
 128         if (format == "gcc-internal-format")
 129                 print keyword > kopt2
 130         else
 131                 print keyword > kopt
 132         keyword_seen[name] = keyword
 133     } else if (keyword_seen[name] != keyword) {
 134         printf("%s used incompatibly as both %s and %s\n",
 135                name, keyword_seen[name], keyword)
 136         exit (1)
 137     }
 138 }
 139
 140 function spec_error_string (line) {
 141     if (index(line, "%e") != 0 && index(line, "%n") != 0) return
 142     while ((percent_index = index(line, "%e")) != 0 ||
 143            (percent_index = index(line, "%n")) != 0) {
 144         line = substr(line, percent_index + 2)
 145
 146         bracket_index = index(line, "}")
 147         newline_index = index(line, "\\n")
 148
 149         quote_index = index(line, "\"")
 150         if (bracket_index == 0 && newline_index == 0) return
 151
 152         if (bracket_index != 0) {
 153           if (quote_index != 0 && bracket_index > quote_index) return
 154           msgid = substr(line, 1, bracket_index - 1)
 155           line = substr(line, bracket_index + 1)
 156         }
 157         else if (newline_index != 0) {
 158           if (quote_index != 0 && quote_index > newline_index) return
 159           msgid = substr(line, 1, newline_index - 1)
 160           line = substr(line, newline_index + 1)
 161         }
 162
 163         if (index(msgid, "%") != 0) continue
 164
 165         if ((newline_index = index(msgid, "\\n")) != 0)
 166           msgid = substr(msgid, 1, newline_index - 1)
 167         printf("#line %d \"%s\"\n", lineno, file) > emsg
 168         printf("_(\"%s\")\n", msgid) > emsg
 169     }
 170 }
 171
 172 BEGIN {
 173   while ((getline < excl) > 0) {
 174     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 175       continue
 176     excludes[$1] = 1
 177   }
 178 }
 179
 180 { if (!($0 in excludes)) {
 181     print > posr
 182     files[NR] = $0
 183   }
 184 }
 185
 186 END {
 187     for (f in files) {
 188         file = files[f]
 189         lineno = 1
 190         while (getline < file) {
 191             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 192                 keyword_option($0)
 193             } else if (/^(#[   ]*define[       ]*)?[A-Za-z_].*(\(|\(.*,)$/) {
 194                 name_line = $0
 195                 while (getline < file) {
 196                   lineno++
 197                   if (/msgid[,\)]/){
 198                     keyword_option(name_line $0)
 199                     break
 200                   } else if (/,$/) {
 201                       name_line = name_line $0
 202                       continue
 203                   } else break
 204                 }
 205             } else if (/%e/ || /%n/) {
 206                 spec_error_string($0)
 207             }
 208             lineno++
 209         }
 210     }
 211     print emsg > posr
 212 }'
 213 ) || exit
 214
 215 echo "scanning option files..." >&2
 216
 217 ( cd $srcdir; find . -name '*.opt' -print |
 218   $AWK '{
 219     file = $1
 220     lineno = 1
 221     field = 0
 222     while (getline < file) {
 223         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 224             field = 0
 225         } else {
 226             if (field == 2) {
 227                 line = $0
 228                 printf("#line %d \"%s\"\n", lineno, file)
 229                 printf("_(\"%s\")\n", line)
 230             }
 231             field++;
 232         }
 233         lineno++;
 234     }
 235   }') >> $emsg
 236
 237 # Run the xgettext command, with temporary added as a file to scan.
 238 echo "running xgettext..." >&2
 239 $xgettext --default-domain=$package --directory=$srcdir \
 240           --add-comments `cat $kopt` --files-from=$posr \
 241           --copyright-holder="Free Software Foundation, Inc." \
 242           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 243           --language=c -o $pottmp1
 244 $xgettext --default-domain=$package --directory=$srcdir \
 245           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 246           --copyright-holder="Free Software Foundation, Inc." \
 247           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 248           --language=GCC-source -o $pottmp2
 249 $xgettext --default-domain=$package \
 250           --add-comments $pottmp1 $pottmp2 \
 251           --copyright-holder="Free Software Foundation, Inc." \
 252           --msgid-bugs-address="http://gcc.gnu.org/bugs.html" \
 253           --language=PO -o $pottmp
 254 # Remove local paths from .pot file.
 255 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot