gcc/po/exgettext

   1 #! /bin/sh
   2 # Wrapper around gettext for programs using the msgid convention.
   3 # Copyright (C) 1998-2024 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 BUGURL="https://gcc.gnu.org/bugs/"
  25
  26 # Always operate in the C locale.
  27 LANG=C
  28 LANGUAGE=C
  29 LC_ALL=C
  30 export LANG LANGUAGE LC_ALL
  31
  32 # Set AWK if environment has not already set it.
  33 AWK=${AWK-awk}
  34
  35 # The arguments to this wrapper are: the program to execute, the
  36 # name of the "package", and the path to the source directory.
  37
  38 if [ $# -ne 3 ]
  39 then    echo "usage: $0 <xgettext> <package> <srcdir>"
  40         exit 1
  41 fi
  42
  43 xgettext=$1
  44 package=$2
  45 srcdir=$3
  46
  47 case `$xgettext --version | sed -e 1q | sed -e 's/^\([^0-9]*\)//'` in
  48   0.14.[5-9]* | 0.14.[1-9][0-9]* | 0.1[5-9]* | 0.[2-9][0-9]* | [1-9].*) : ;;
  49   *) echo "$xgettext is too old.  GNU xgettext 0.14.5 is required"
  50      exit 1 ;;
  51 esac
  52
  53 nl='
  54 '
  55
  56 set -e
  57
  58 # Create temporary directory for scratch files.
  59 T=exg$$.d
  60 mkdir $T
  61 trap "rm -r $T" 0
  62
  63 pwd=`${PWDCMD-pwd}`
  64 kopt=$pwd/$T/keyword-options
  65 kopt2=$pwd/$T/keyword2-options
  66 emsg=$pwd/$T/emsgids.c
  67 posr=$pwd/$T/po-sources
  68 posrcxx=$pwd/$T/po-cxx-sources
  69 pottmp1=$pwd/$T/tmp1.pot
  70 pottmp2=$pwd/$T/tmp2.pot
  71 pottmp3=$pwd/$T/tmp3.pot
  72 pottmp4=$pwd/$T/tmp4.pot
  73 pottmp=$pwd/$T/tmp.pot
  74
  75 # Locate files to scan.  We scan the following directories:
  76 #  $srcdir
  77 #  $srcdir/c-family
  78 #  $srcdir/common
  79 #  $srcdir/common/config
  80 #  $srcdir/common/config/*
  81 #  $srcdir/config
  82 #  $srcdir/config/*
  83 #  all subdirectories of $srcdir containing a config-lang.in file, and
  84 #    all subdirectories of those directories.
  85 # Within those directories, we examine all .c, .cc, .h, and .def files.
  86 # However, any files listed in $srcdir/po/EXCLUDE are not examined.
  87 #
  88 # Then generate keyword options for xgettext, by scanning for declarations
  89 # of functions whose parameter names end in "msgid".
  90 #
  91 # Finally, generate a source file containing all %e and %n strings from
  92 # driver specs, so those can be translated too.
  93 #
  94 # All in one huge awk script.
  95
  96 echo "scanning for keywords, %e and %n strings..." >&2
  97
  98 ( cd $srcdir
  99   lang_subdirs=`echo */config-lang.in */*/config-lang.in | sed -e 's|/config-lang\.in||g'`
 100   { for dir in "" c-family/ common/ common/config/ common/config/*/ \
 101       config/ config/*/ \
 102       `find $lang_subdirs -type d -print | sort | sed -e 's|$|/|'`
 103     do  for glob in '*.c' '*.cc' '*.h' '*.def'
 104         do  eval echo $dir$glob
 105         done
 106     done;
 107   } | tr ' ' "$nl" | grep -v '\*' |
 108   $AWK -v excl=po/EXCLUDES -v posr=$posr -v posrcxx=$posrcxx -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '
 109 function keyword_option(line) {
 110     paren_index = index(line, "(")
 111     name = substr(line, 1, paren_index - 1)
 112     sub(/[^0-9A-Z_a-z]*$/, "", name)
 113     sub(/[       ]+PARAMS/, "", name)
 114     sub(/[       ]+VPARAMS/, "", name)
 115     sub(/.*[^0-9A-Z_a-z]/, "", name)
 116
 117     args = substr(line, paren_index)
 118     sub(/msgid[,\)].*/, "", args)
 119     for (n = 1; sub(/^[^,]*,/, "", args); n++) {
 120         continue
 121     }
 122     format=""
 123     if (args ~ /g$/)
 124         format="gcc-internal-format"
 125     else if (args ~ /noc$/)
 126         format="no-c-format"
 127     else if (args ~ /c$/)
 128         format="c-format"
 129
 130     if (n == 1) { keyword = "--keyword=" name }
 131     else {
 132        keyword = "--keyword=" name ":" n
 133        if (name ~ /_n$/)
 134          keyword = keyword "," (n + 1)
 135     }
 136     if (format) {
 137         keyword=keyword "\n--flag=" name ":" n ":" format
 138         if (name ~ /_n$/)
 139           keyword = keyword "\n--flag=" name ":" (n + 1) ":" format
 140     }
 141
 142     if (! keyword_seen[name]) {
 143         if (format == "gcc-internal-format")
 144                 print keyword > kopt2
 145         else
 146                 print keyword > kopt
 147         keyword_seen[name] = keyword
 148     } else if (keyword_seen[name] != keyword) {
 149         printf("%s used incompatibly as both %s and %s\n",
 150                name, keyword_seen[name], keyword)
 151         exit (1)
 152     }
 153 }
 154
 155 function spec_error_string (line) {
 156     if (index(line, "%e") != 0 && index(line, "%n") != 0) return
 157     while ((percent_index = index(line, "%e")) != 0 ||
 158            (percent_index = index(line, "%n")) != 0) {
 159         line = substr(line, percent_index + 2)
 160
 161         bracket_index = index(line, "}")
 162         newline_index = index(line, "\\n")
 163
 164         quote_index = index(line, "\"")
 165         if (bracket_index == 0 && newline_index == 0) return
 166
 167         if (bracket_index != 0) {
 168           if (quote_index != 0 && bracket_index > quote_index) return
 169           msgid = substr(line, 1, bracket_index - 1)
 170           line = substr(line, bracket_index + 1)
 171         }
 172         else if (newline_index != 0) {
 173           if (quote_index != 0 && quote_index > newline_index) return
 174           msgid = substr(line, 1, newline_index - 1)
 175           line = substr(line, newline_index + 1)
 176         }
 177
 178         if (index(msgid, "%") != 0) continue
 179
 180         if ((newline_index = index(msgid, "\\n")) != 0)
 181           msgid = substr(msgid, 1, newline_index - 1)
 182         printf("#line %d \"%s\"\n", lineno, file) > emsg
 183         printf("_(\"%s\")\n", msgid) > emsg
 184     }
 185 }
 186
 187 BEGIN {
 188   while ((getline < excl) > 0) {
 189     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 190       continue
 191     excludes[$1] = 1
 192   }
 193 }
 194
 195 { if (!($0 in excludes)) {
 196     if ($0 ~ /.cc$/) {
 197       print > posrcxx
 198     } else {
 199       print > posr
 200     }
 201     files[NR] = $0
 202   }
 203 }
 204
 205 END {
 206     for (f in files) {
 207         file = files[f]
 208         lineno = 1
 209         while (getline < file) {
 210             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 211                 keyword_option($0)
 212             } else if (/^(#[   ]*define[       ]*)?[A-Za-z_].*(\(|\(.*,)$/) {
 213                 name_line = $0
 214                 while (getline < file) {
 215                   lineno++
 216                   if (/msgid[,\)]/){
 217                     keyword_option(name_line $0)
 218                     break
 219                   } else if (/,$/) {
 220                       name_line = name_line $0
 221                       continue
 222                   } else break
 223                 }
 224             } else if (/%e/ || /%n/) {
 225                 spec_error_string($0)
 226             }
 227             lineno++
 228         }
 229     }
 230     print emsg > posr
 231     print "--keyword=__opt_help_text\n--flag=__opt_help_text:1:no-c-format" >> kopt
 232 }'
 233 ) || exit
 234
 235 echo "scanning option files..." >&2
 236
 237 ( cd $srcdir; find . -name '*.opt' -print |
 238   $AWK '{
 239     file = $1
 240     lineno = 1
 241     field = 0
 242     while (getline < file) {
 243         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 244             if (field > 2)
 245                 printf("__opt_help_text(\"%s\")\n", line)
 246             field = 0
 247         } else {
 248             if ((field == 1) && /MissingArgError/) {
 249                 line = $0
 250                 sub(".*MissingArgError\\(", "", line)
 251                 if (line ~ "^{") {
 252                         sub("^{", "", line)
 253                         sub("}\\).*", "", line)
 254                 } else
 255                         sub("\\).*", "", line)
 256                 printf("#line %d \"%s\"\n", lineno, file)
 257                 printf("error(\"%s\")\n", line)
 258             }
 259             if ((field == 1) && /UnknownError/) {
 260                 line = $0
 261                 sub(".*UnknownError\\(", "", line)
 262                 if (line ~ "^{") {
 263                         sub("^{", "", line)
 264                         sub("}\\).*", "", line)
 265                 } else
 266                         sub("\\).*", "", line)
 267                 printf("#line %d \"%s\"\n", lineno, file)
 268                 printf("error(\"%s\")\n", line)
 269             }
 270             if ((field == 1) && /Warn\(/) {
 271                 line = $0
 272                 sub(".*Warn\\(", "", line)
 273                 if (line ~ "^{") {
 274                         sub("^{", "", line)
 275                         sub("}\\).*", "", line)
 276                 } else
 277                         sub("\\).*", "", line)
 278                 printf("#line %d \"%s\"\n", lineno, file)
 279                 printf("warning(0, \"%s\")\n", line)
 280             }
 281             if (field == 2) {
 282                 line = $0
 283                 printf("#line %d \"%s\"\n", lineno, file)
 284             } else if (field > 2) {
 285                 line = line " " $0
 286             }
 287             field++;
 288         }
 289         lineno++;
 290     }
 291     if (field > 2)
 292         printf("__opt_help_text(\"%s\")\n", line)
 293   }') >> $emsg
 294
 295 # Run the xgettext commands, with temporary added as a file to scan.
 296 echo "running xgettext..." >&2
 297 $xgettext --default-domain=$package --directory=$srcdir \
 298           --add-comments `cat $kopt` --files-from=$posr \
 299           --copyright-holder="Free Software Foundation, Inc." \
 300           --msgid-bugs-address="$BUGURL" \
 301           --language=c -o $pottmp1
 302 if test -s $posrcxx; then
 303   $xgettext --default-domain=$package --directory=$srcdir \
 304             --add-comments `cat $kopt` --files-from=$posrcxx \
 305             --copyright-holder="Free Software Foundation, Inc." \
 306             --msgid-bugs-address="$BUGURL" \
 307             --language=c++ -o $pottmp2
 308 else
 309   echo > $pottmp2
 310 fi
 311 $xgettext --default-domain=$package --directory=$srcdir \
 312           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 313           --copyright-holder="Free Software Foundation, Inc." \
 314           --msgid-bugs-address="$BUGURL" \
 315           --language=GCC-source -o $pottmp3
 316 $xgettext --default-domain=$package --directory=$srcdir \
 317           --add-comments --keyword= `cat $kopt2` --files-from=$posrcxx \
 318           --copyright-holder="Free Software Foundation, Inc." \
 319           --msgid-bugs-address="$BUGURL" \
 320           --language=GCC-source -o $pottmp4
 321 $xgettext --default-domain=$package \
 322           --add-comments $pottmp1 $pottmp2 $pottmp3 $pottmp4 \
 323           --copyright-holder="Free Software Foundation, Inc." \
 324           --msgid-bugs-address="$BUGURL" \
 325           --language=PO -o $pottmp
 326 # Remove local paths from .pot file.
 327 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot