gcc/po/exgettext

   1 #! /bin/sh
   2 # Wrapper around gettext for programs using the msgid convention.
   3 # Copyright (C) 1998-2020 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 pottmp=$pwd/$T/tmp.pot
  73
  74 # Locate files to scan.  We scan the following directories:
  75 #  $srcdir
  76 #  $srcdir/c-family
  77 #  $srcdir/common
  78 #  $srcdir/common/config
  79 #  $srcdir/common/config/*
  80 #  $srcdir/config
  81 #  $srcdir/config/*
  82 #  all subdirectories of $srcdir containing a config-lang.in file, and
  83 #    all subdirectories of those directories.
  84 # Within those directories, we examine all .c, .cc, .h, and .def files.
  85 # However, any files listed in $srcdir/po/EXCLUDE are not examined.
  86 #
  87 # Then generate keyword options for xgettext, by scanning for declarations
  88 # of functions whose parameter names end in "msgid".
  89 #
  90 # Finally, generate a source file containing all %e and %n strings from
  91 # driver specs, so those can be translated too.
  92 #
  93 # All in one huge awk script.
  94
  95 echo "scanning for keywords, %e and %n strings..." >&2
  96
  97 ( cd $srcdir
  98   lang_subdirs=`echo */config-lang.in */*/config-lang.in | sed -e 's|/config-lang\.in||g'`
  99   { for dir in "" c-family/ common/ common/config/ common/config/*/ \
 100       config/ config/*/ \
 101       `find $lang_subdirs -type d -print | fgrep -v .svn | sort | sed -e 's|$|/|'`
 102     do  for glob in '*.c' '*.cc' '*.h' '*.def'
 103         do  eval echo $dir$glob
 104         done
 105     done;
 106   } | tr ' ' "$nl" | grep -v '\*' |
 107   $AWK -v excl=po/EXCLUDES -v posr=$posr -v posrcxx=$posrcxx -v kopt=$kopt -v kopt2=$kopt2 -v emsg=$emsg '
 108 function keyword_option(line) {
 109     paren_index = index(line, "(")
 110     name = substr(line, 1, paren_index - 1)
 111     sub(/[^0-9A-Z_a-z]*$/, "", name)
 112     sub(/[       ]+PARAMS/, "", name)
 113     sub(/[       ]+VPARAMS/, "", name)
 114     sub(/.*[^0-9A-Z_a-z]/, "", name)
 115
 116     args = substr(line, paren_index)
 117     sub(/msgid[,\)].*/, "", args)
 118     for (n = 1; sub(/^[^,]*,/, "", args); n++) {
 119         continue
 120     }
 121     format=""
 122     if (args ~ /g$/)
 123         format="gcc-internal-format"
 124     else if (args ~ /noc$/)
 125         format="no-c-format"
 126     else if (args ~ /c$/)
 127         format="c-format"
 128
 129     if (n == 1) { keyword = "--keyword=" name }
 130     else {
 131        keyword = "--keyword=" name ":" n
 132        if (name ~ /_n$/)
 133          keyword = keyword "," (n + 1)
 134     }
 135     if (format) {
 136         keyword=keyword "\n--flag=" name ":" n ":" format
 137         if (name ~ /_n$/)
 138           keyword = keyword "\n--flag=" name ":" (n + 1) ":" format
 139     }
 140
 141     if (! keyword_seen[name]) {
 142         if (format == "gcc-internal-format")
 143                 print keyword > kopt2
 144         else
 145                 print keyword > kopt
 146         keyword_seen[name] = keyword
 147     } else if (keyword_seen[name] != keyword) {
 148         printf("%s used incompatibly as both %s and %s\n",
 149                name, keyword_seen[name], keyword)
 150         exit (1)
 151     }
 152 }
 153
 154 function spec_error_string (line) {
 155     if (index(line, "%e") != 0 && index(line, "%n") != 0) return
 156     while ((percent_index = index(line, "%e")) != 0 ||
 157            (percent_index = index(line, "%n")) != 0) {
 158         line = substr(line, percent_index + 2)
 159
 160         bracket_index = index(line, "}")
 161         newline_index = index(line, "\\n")
 162
 163         quote_index = index(line, "\"")
 164         if (bracket_index == 0 && newline_index == 0) return
 165
 166         if (bracket_index != 0) {
 167           if (quote_index != 0 && bracket_index > quote_index) return
 168           msgid = substr(line, 1, bracket_index - 1)
 169           line = substr(line, bracket_index + 1)
 170         }
 171         else if (newline_index != 0) {
 172           if (quote_index != 0 && quote_index > newline_index) return
 173           msgid = substr(line, 1, newline_index - 1)
 174           line = substr(line, newline_index + 1)
 175         }
 176
 177         if (index(msgid, "%") != 0) continue
 178
 179         if ((newline_index = index(msgid, "\\n")) != 0)
 180           msgid = substr(msgid, 1, newline_index - 1)
 181         printf("#line %d \"%s\"\n", lineno, file) > emsg
 182         printf("_(\"%s\")\n", msgid) > emsg
 183     }
 184 }
 185
 186 BEGIN {
 187   while ((getline < excl) > 0) {
 188     if ($0 ~ /^#/ || $0 ~ /^[   ]*$/)
 189       continue
 190     excludes[$1] = 1
 191   }
 192 }
 193
 194 { if (!($0 in excludes)) {
 195     if ($0 ~ /.cc$/) {
 196       print > posrcxx
 197     } else {
 198       print > posr
 199     }
 200     files[NR] = $0
 201   }
 202 }
 203
 204 END {
 205     for (f in files) {
 206         file = files[f]
 207         lineno = 1
 208         while (getline < file) {
 209             if (/^(#[   ]*define[       ]*)?[A-Za-z_].*\(.*msgid[,\)]/) {
 210                 keyword_option($0)
 211             } else if (/^(#[   ]*define[       ]*)?[A-Za-z_].*(\(|\(.*,)$/) {
 212                 name_line = $0
 213                 while (getline < file) {
 214                   lineno++
 215                   if (/msgid[,\)]/){
 216                     keyword_option(name_line $0)
 217                     break
 218                   } else if (/,$/) {
 219                       name_line = name_line $0
 220                       continue
 221                   } else break
 222                 }
 223             } else if (/%e/ || /%n/) {
 224                 spec_error_string($0)
 225             }
 226             lineno++
 227         }
 228     }
 229     print emsg > posr
 230     print "--keyword=__opt_help_text\n--flag=__opt_help_text:1:no-c-format" >> kopt
 231 }'
 232 ) || exit
 233
 234 echo "scanning option files..." >&2
 235
 236 ( cd $srcdir; find . -name '*.opt' -print |
 237   $AWK '{
 238     file = $1
 239     lineno = 1
 240     field = 0
 241     while (getline < file) {
 242         if (/^[ \t]*(;|$)/ || !/^[^ \t]/) {
 243             if (field > 2)
 244                 printf("__opt_help_text(\"%s\")\n", line)
 245             field = 0
 246         } else {
 247             if ((field == 1) && /MissingArgError/) {
 248                 line = $0
 249                 sub(".*MissingArgError\\(", "", line)
 250                 if (line ~ "^{") {
 251                         sub("^{", "", line)
 252                         sub("}\\).*", "", line)
 253                 } else
 254                         sub("\\).*", "", line)
 255                 printf("#line %d \"%s\"\n", lineno, file)
 256                 printf("error(\"%s\")\n", line)
 257             }
 258             if ((field == 1) && /UnknownError/) {
 259                 line = $0
 260                 sub(".*UnknownError\\(", "", line)
 261                 if (line ~ "^{") {
 262                         sub("^{", "", line)
 263                         sub("}\\).*", "", line)
 264                 } else
 265                         sub("\\).*", "", line)
 266                 printf("#line %d \"%s\"\n", lineno, file)
 267                 printf("error(\"%s\")\n", line)
 268             }
 269             if ((field == 1) && /Warn\(/) {
 270                 line = $0
 271                 sub(".*Warn\\(", "", line)
 272                 if (line ~ "^{") {
 273                         sub("^{", "", line)
 274                         sub("}\\).*", "", line)
 275                 } else
 276                         sub("\\).*", "", line)
 277                 printf("#line %d \"%s\"\n", lineno, file)
 278                 printf("warning(0, \"%s\")\n", line)
 279             }
 280             if (field == 2) {
 281                 line = $0
 282                 printf("#line %d \"%s\"\n", lineno, file)
 283             } else if (field > 2) {
 284                 line = line " " $0
 285             }
 286             field++;
 287         }
 288         lineno++;
 289     }
 290     if (field > 2)
 291         printf("__opt_help_text(\"%s\")\n", line)
 292   }') >> $emsg
 293
 294 # Run the xgettext commands, with temporary added as a file to scan.
 295 echo "running xgettext..." >&2
 296 $xgettext --default-domain=$package --directory=$srcdir \
 297           --add-comments `cat $kopt` --files-from=$posr \
 298           --copyright-holder="Free Software Foundation, Inc." \
 299           --msgid-bugs-address="$BUGURL" \
 300           --language=c -o $pottmp1
 301 if test -s $posrcxx; then
 302   $xgettext --default-domain=$package --directory=$srcdir \
 303             --add-comments `cat $kopt` --files-from=$posrcxx \
 304             --copyright-holder="Free Software Foundation, Inc." \
 305             --msgid-bugs-address="$BUGURL" \
 306             --language=c++ -o $pottmp2
 307 else
 308   echo > $pottmp2
 309 fi
 310 $xgettext --default-domain=$package --directory=$srcdir \
 311           --add-comments --keyword= `cat $kopt2` --files-from=$posr \
 312           --copyright-holder="Free Software Foundation, Inc." \
 313           --msgid-bugs-address="$BUGURL" \
 314           --language=GCC-source -o $pottmp3
 315 $xgettext --default-domain=$package \
 316           --add-comments $pottmp1 $pottmp2 $pottmp3 \
 317           --copyright-holder="Free Software Foundation, Inc." \
 318           --msgid-bugs-address="$BUGURL" \
 319           --language=PO -o $pottmp
 320 # Remove local paths from .pot file.
 321 sed "s:$srcdir/::g;s:$pwd/::g;" <$pottmp >po/$package.pot