mingw/share/gettext/msgunfmt.tcl

   1 # Reading tcl/msgcat .msg files.
   2 # Copyright (C) 2002 Free Software Foundation, Inc.
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 namespace eval msgcat {
  18   namespace export mcset mcdump
  19   variable header ""
  20 }
  21
  22 proc msgcat::puts_po_string {str} {
  23   # Replace " with \"
  24   regsub -all "\"" $str "\\\"" str
  25   # Replace \ with \\
  26   regsub -all "\\\\" $str "\\\\\\" str
  27   # Replace newline with \n
  28   regsub -all [subst "\n"] $str "\\n" str
  29   regsub -all [subst "\a"] $str "\\a" str
  30   regsub -all [subst "\b"] $str "\\b" str
  31   regsub -all [subst "\f"] $str "\\f" str
  32   regsub -all [subst "\r"] $str "\\r" str
  33   regsub -all [subst "\t"] $str "\\t" str
  34   regsub -all [subst "\v"] $str "\\v" str
  35   # Output it.
  36   puts -nonewline "\"$str\""
  37 }
  38
  39 proc msgcat::write_po_message {msgid msgstr} {
  40   puts -nonewline "msgid "
  41   puts_po_string $msgid
  42   puts ""
  43   puts -nonewline "msgstr "
  44   puts_po_string $msgstr
  45   puts ""
  46   puts ""
  47 }
  48
  49 # This gets called once for each message in the .msg catalog.
  50 proc msgcat::mcset {locale src {dest ""}} {
  51   msgcat::write_po_message $src $dest
  52 }
  53
  54 # Main function.
  55 proc msgcat::mcdump {langfile} {
  56   if {[file exists $langfile]} {
  57     # msgunfmt expects the output in UTF-8 encoding.
  58     fconfigure stdout -encoding utf-8
  59
  60     set msgcat::header ""
  61
  62     set fd [open $langfile r]
  63     # In newer tcl versions, the .msg files are in UTF-8 encoding.
  64     fconfigure $fd -encoding utf-8
  65     eval [read $fd]
  66     close $fd
  67
  68     if {$msgcat::header == ""} {
  69       # Provide a minimal header.
  70       set msgcat::header [subst "MIME-Version: 1.0\nContent-Type: text/plain; charset=UTF-8\nContent-Transfer-Encoding: 8bit\n"]
  71     }
  72     msgcat::write_po_message "" $msgcat::header
  73   } else {
  74     # Tell msgunfmt to emit an internationalized error message.
  75     exit 2
  76   }
  77 }
  78
  79 # Main code: call the main function on the first and only argument.
  80 msgcat::mcdump [lindex $argv 0]
  81
  82 exit 0