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