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/* This file is part of the svarlang project and is published under the terms
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* of the MIT license.
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*
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* Copyright (C) 2021-2023 Mateusz Viste
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef SVARLANG_H
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#define SVARLANG_H
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/* library version */
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#define SVARLANGVER "20230628"
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/* returns a pointer to a string with the SvarLANG's library version,
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* independently of the SVARLANGVER string above. */
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const char *svarlang_getver(void);
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/* loads translations for program progname, language lang, in paths.
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*
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* only the two first letters of the lang strings are meaningful and they are
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* case insensitive.
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*
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* paths can be either a directory path (like "C:\DATA") or a list of paths
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* separated by a semicolon (example: "C:\DATA;.\LANGS;."). It may also be
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* NULL, in which case only the current directory will be searched.
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*
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* a typical call would be this: svarlang_load("myprog", "PL", NULL);
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*
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* this function returns 0 on success, non-zero otherwise. It is still possible
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* to call svarlang_strid() after a load failure, the previously loaded
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* language will be used then, or the default language if no loading has been
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* done yet. */
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int svarlang_load(const char *progname, const char *lang, const char *paths);
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/* same as svarlang_load(), but relies on getenv() to pull LANG and NLSPATH.
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* this call should be used only by "CORE" SvarDOS programs. */
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int svarlang_autoload(const char *progname);
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/* Returns a pointer to the string "id". Does not require svalang_load() to be
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* executed, but then it will only return the reference language strings.
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* a string id is the concatenation of the CATS-style identifiers, for example
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* string 1,0 becomes 0x0100, string 2.10 is 0x020A, etc.
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* It NEVER returns NULL, if id not found then an empty string is returned */
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const char *svarlang_strid(unsigned short id);
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/* a convenience definition to fetch strings by their CATS-style pairs instead
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* of the 16-bit id. */
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#define svarlang_str(x, y) svarlang_strid((x << 8) | y)
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#endif
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