127 lines
4.6 KiB
C
127 lines
4.6 KiB
C
/* BSD 3-Clause License
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*
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* Copyright © 2008-2022, Jice and the libtcod contributors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/// This is a libtcod internal module.
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/// Use at your own risk.
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/// @cond INTERNAL
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#ifndef TCOD_LEX_H_
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#define TCOD_LEX_H_
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#include "portability.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define TCOD_LEX_FLAG_NOCASE 1
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#define TCOD_LEX_FLAG_NESTING_COMMENT 2
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#define TCOD_LEX_FLAG_TOKENIZE_COMMENTS 4
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#define TCOD_LEX_ERROR -1
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#define TCOD_LEX_UNKNOWN 0
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#define TCOD_LEX_SYMBOL 1
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#define TCOD_LEX_KEYWORD 2
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#define TCOD_LEX_IDEN 3
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#define TCOD_LEX_STRING 4
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#define TCOD_LEX_INTEGER 5
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#define TCOD_LEX_FLOAT 6
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#define TCOD_LEX_CHAR 7
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#define TCOD_LEX_EOF 8
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#define TCOD_LEX_COMMENT 9
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#define TCOD_LEX_MAX_SYMBOLS 100
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#define TCOD_LEX_SYMBOL_SIZE 5
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#define TCOD_LEX_MAX_KEYWORDS 100
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#define TCOD_LEX_KEYWORD_SIZE 20
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typedef struct TCOD_lex_t {
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int file_line; // Current line number.
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int token_type; // One of the TCOD_LEX_* values.
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int token_int_val;
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int token_idx;
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float token_float_val;
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char* tok;
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int toklen;
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char lastStringDelim;
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char* pos;
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char* buf;
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char* filename;
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char* last_javadoc_comment;
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/* private stuff */
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int nb_symbols; // Current number of symbols in `symbols` array.
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int nb_keywords; // Current number of keywords in `keywords` array.
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int flags;
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char symbols[TCOD_LEX_MAX_SYMBOLS][TCOD_LEX_SYMBOL_SIZE];
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char keywords[TCOD_LEX_MAX_KEYWORDS][TCOD_LEX_KEYWORD_SIZE];
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const char* simple_comment;
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const char* comment_start;
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const char* comment_stop;
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const char* javadoc_comment_start;
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const char* stringDelim;
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bool javadoc_read;
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bool allocBuf; // True if `buf` is owned by this object.
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bool is_savepoint; // is this object a savepoint (no free in destructor)
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} TCOD_lex_t;
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TCODLIB_API TCOD_lex_t* TCOD_lex_new_intern(void);
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TCODLIB_API TCOD_lex_t* TCOD_lex_new(
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const char* const* symbols,
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const char* const* keywords,
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const char* simpleComment,
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const char* commentStart,
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const char* commentStop,
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const char* javadocCommentStart,
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const char* stringDelim,
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int flags);
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TCODLIB_API void TCOD_lex_delete(TCOD_lex_t* lex);
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TCODLIB_API void TCOD_lex_set_data_buffer(TCOD_lex_t* lex, char* dat);
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TCODLIB_API bool TCOD_lex_set_data_file(TCOD_lex_t* lex, const char* filename);
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TCODLIB_API int TCOD_lex_parse(TCOD_lex_t* lex);
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TCODLIB_API int TCOD_lex_parse_until_token_type(TCOD_lex_t* lex, int token_type);
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TCODLIB_API int TCOD_lex_parse_until_token_value(TCOD_lex_t* lex, const char* token_value);
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TCODLIB_API bool TCOD_lex_expect_token_type(TCOD_lex_t* lex, int token_type);
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TCODLIB_API bool TCOD_lex_expect_token_value(TCOD_lex_t* lex, int token_type, const char* token_value);
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TCODLIB_API void TCOD_lex_savepoint(TCOD_lex_t* lex, TCOD_lex_t* savepoint);
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TCODLIB_API void TCOD_lex_restore(TCOD_lex_t* lex, TCOD_lex_t* savepoint);
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TCODLIB_API char* TCOD_lex_get_last_javadoc(TCOD_lex_t* lex);
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TCODLIB_API const char* TCOD_lex_get_token_name(int token_type);
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TCODLIB_API int TCOD_lex_hextoint(char c);
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#ifdef __cplusplus
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}
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#endif
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#endif // TCOD_LEX_H_
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/// @endcond
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