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/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file strgen.h Structures related to strgen. */
#ifndef STRGEN_H
#define STRGEN_H
/** Container for the different cases of a string. */
struct Case {
int caseidx; ///< The index of the case.
char *string; ///< The translation of the case.
Case *next; ///< The next, chained, case.
Case(int caseidx, const char *string, Case *next);
~Case();
};
/** Information about a single string. */
struct LangString {
char *name; ///< Name of the string.
char *english; ///< English text.
char *translated; ///< Translated text.
uint16 hash_next; ///< Next hash entry.
uint16 index; ///< The index in the language file.
int line; ///< Line of string in source-file.
Case *translated_case; ///< Cases of the translation.
LangString(const char *name, const char *english, int index, int line);
~LangString();
void FreeTranslation();
};
/** Information about the currently known strings. */
struct StringData {
LangString **strings; ///< Array of all known strings.
uint16 *hash_heads; ///< Hash table for the strings.
size_t tabs; ///< The number of 'tabs' of strings.
size_t max_strings; ///< The maxmimum number of strings.
int next_string_id; ///< The next string ID to allocate.
StringData(size_t tabs);
~StringData();
void FreeTranslation();
uint HashStr(const char *s) const;
void Add(const char *s, LangString *ls);
LangString *Find(const char *s);
uint VersionHashStr(uint hash, const char *s) const;
uint Version() const;
uint CountInUse(uint tab) const;
};
/** Helper for reading strings. */
struct StringReader {
StringData &data; ///< The data to fill during reading.
const char *file; ///< The file we are reading.
bool master; ///< Are we reading the master file?
bool translation; ///< Are we reading a translation, implies !master. However, the base translation will have this false.
StringReader(StringData &data, const char *file, bool master, bool translation);
virtual ~StringReader();
void HandleString(char *str);
/**
* Read a single line from the source of strings.
* @param buffer The buffer to read the data in to.
* @param size The size of the buffer.
* @return The buffer, or NULL if at the end of the file.
*/
virtual char *ReadLine(char *buffer, size_t size) = 0;
/**
* Handle the pragma of the file.
* @param str The pragma string to parse.
*/
virtual void HandlePragma(char *str) = 0;
/**
* Start parsing the file.
*/
virtual void ParseFile();
};
/** Base class for writing the header, i.e. the STR_XXX to numeric value. */
struct HeaderWriter {
/**
* Write the string ID.
* @param name The name of the string.
* @param stringid The ID of the string.
*/
virtual void WriteStringID(const char *name, int stringid) = 0;
/**
* Finalise writing the file.
* @param data The data about the string.
*/
virtual void Finalise(const StringData &data) = 0;
/** Especially destroy the subclasses. */
virtual ~HeaderWriter() {};
void WriteHeader(const StringData &data);
};
/** Base class for all language writers. */
struct LanguageWriter {
/**
* Write the header metadata. The multi-byte integers are already converted to
* the little endian format.
* @param header The header to write.
*/
virtual void WriteHeader(const LanguagePackHeader *header) = 0;
/**
* Write a number of bytes.
* @param buffer The buffer to write.
* @param length The amount of byte to write.
*/
virtual void Write(const byte *buffer, size_t length) = 0;
/**
* Finalise writing the file.
*/
virtual void Finalise() = 0;
/** Especially destroy the subclasses. */
virtual ~LanguageWriter() {}
virtual void WriteLength(uint length);
virtual void WriteLang(const StringData &data);
};
void CDECL strgen_warning(const char *s, ...) WARN_FORMAT(1, 2);
void CDECL strgen_error(const char *s, ...) WARN_FORMAT(1, 2);
void NORETURN CDECL strgen_fatal(const char *s, ...) WARN_FORMAT(1, 2);
char *ParseWord(char **buf);
extern const char *_file;
extern int _cur_line;
extern int _errors, _warnings, _show_todo;
extern LanguagePackHeader _lang;
#endif /* STRGEN_H */
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