hedgewars/uLocale.pas
author unc0rr
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(*
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 * Hedgewars, a free turn based strategy game
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 * Copyright (c) 2004-2014 Andrey Korotaev <unC0Rr@gmail.com>
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; version 2 of the License
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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 *)
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{$INCLUDE "options.inc"}
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unit uLocale;
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interface
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uses uTypes;
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const MAX_EVENT_STRINGS = 100;
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procedure LoadLocale(FileName: shortstring);
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function  Format(fmt: shortstring; var arg: shortstring): shortstring;
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function  FormatA(fmt: PChar; arg: ansistring): ansistring;
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function  GetEventString(e: TEventId): PChar;
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procedure initModule;
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procedure freeModule;
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{$IFDEF HWLIBRARY}
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procedure LoadLocaleWrapper(str: pchar); cdecl; export;
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{$ENDIF}
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implementation
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uses uRandom, uVariables, uDebug, uPhysFSLayer, sysutils;
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var trevt: array[TEventId] of array [0..Pred(MAX_EVENT_STRINGS)] of PChar;
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    trevt_n: array[TEventId] of integer;
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procedure LoadLocale(FileName: shortstring);
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var s: PChar = nil;
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    sc: PChar;
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    f: pfsFile;
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    a, b, c: LongInt;
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    first: array[TEventId] of boolean;
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    e: TEventId;
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begin
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for e:= Low(TEventId) to High(TEventId) do
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    first[e]:= true;
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f:= pfsOpenRead(FileName);
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TryDo(f <> nil, 'Cannot load locale "' + FileName + '"', false);
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if f <> nil then
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    begin
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    while not pfsEof(f) do
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        begin
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        pfsReadLnA(f, s);
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        if (StrLength(s) > 0) and (s[0] >= '0') and (s[0] <= '9') then
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            begin
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            TryDo(StrLength(s) > 6, 'Load locale: empty string', true);
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            val(s[0]+s[1], a, c);
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            TryDo(c = 0, 'Load locale: numbers should be two-digit: ' + s, true);
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            TryDo(s[2] = ':', 'Load locale: ":" expected', true);
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            val(s[3]+s[4], b, c);
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            TryDo(c = 0, 'Load locale: numbers should be two-digit' + s, true);
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            TryDo(s[5] = '=', 'Load locale: "=" expected', true);
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            sc:= StrAlloc(StrLength(s) - 5);
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            StrCopy(sc, @s[6]);
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            case a of
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                0: if (b >=0) and (b <= ord(High(TAmmoStrId))) then
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                    trammo[TAmmoStrId(b)]:= sc;
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                1: if (b >=0) and (b <= ord(High(TMsgStrId))) then
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                    trmsg[TMsgStrId(b)]:= sc;
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                2: if (b >=0) and (b <= ord(High(TEventId))) then
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                    begin
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                    TryDo(trevt_n[TEventId(b)] < MAX_EVENT_STRINGS, 'Too many event strings in ' + IntToStr(a) + ':' + IntToStr(b), false);
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                    if first[TEventId(b)] then
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                        begin
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                        trevt_n[TEventId(b)]:= 0;
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                        first[TEventId(b)]:= false;
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                        end;
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                    trevt[TEventId(b)][trevt_n[TEventId(b)]]:= sc;
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                    inc(trevt_n[TEventId(b)]);
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                    end;
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                3: if (b >=0) and (b <= ord(High(TAmmoStrId))) then
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                    trammoc[TAmmoStrId(b)]:= sc;
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                4: if (b >=0) and (b <= ord(High(TAmmoStrId))) then
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                    trammod[TAmmoStrId(b)]:= sc;
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                5: if (b >=0) and (b <= ord(High(TGoalStrId))) then
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                    trgoal[TGoalStrId(b)]:= sc;
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            end;
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            end;
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        StrDispose(s);
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        end;
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   pfsClose(f);
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   end;
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end;
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function GetEventString(e: TEventId): PChar;
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begin
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    if trevt_n[e] = 0 then // no messages for this event type?
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        GetEventString:= '*missing translation*'
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    else
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        GetEventString:= trevt[e][GetRandom(trevt_n[e])]; // Pick a random message and return it
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end;
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function Format(fmt: shortstring; var arg: shortstring): shortstring;
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var i: LongInt;
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begin
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i:= Pos('%1', fmt);
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if i = 0 then
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    Format:= fmt
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else
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    Format:= copy(fmt, 1, i - 1) + arg + Format(copy(fmt, i + 2, Length(fmt) - i - 1), arg)
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end;
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function FormatA(fmt: PChar; arg: ansistring): ansistring;
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var i: LongInt;
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    s: ansistring;
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begin
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s:= fmt;
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i:= Pos('%1', s);
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if i = 0 then
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    FormatA:= s
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else
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    FormatA:= copy(s, 1, i - 1) + arg + FormatA(PChar(copy(s, i + 2, Length(s) - i - 1)), arg)
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end;
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{$IFDEF HWLIBRARY}
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procedure LoadLocaleWrapper(str: pchar); cdecl; export;
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begin
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    LoadLocale(Strpas(str));
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end;
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{$ENDIF}
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procedure initModule;
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var e: TEventId;
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    i: LongInt;
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begin
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    for e:= Low(TEventId) to High(TEventId) do
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        for i:= 0 to Pred(MAX_EVENT_STRINGS) do
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            trevt[e][i]:= nil;
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end;
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procedure freeModule;
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var e: TEventId;
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    i: LongInt;
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begin
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    for e:= Low(TEventId) to High(TEventId) do
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        for i:= 0 to Pred(trevt_n[e]) do
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            StrDispose(trevt[e][i]);
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end;
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end.