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janet/include/gst/parse.h
2017-05-07 16:48:35 -04:00

73 lines
2.3 KiB
C

/*
* Copyright (c) 2017 Calvin Rose
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#ifndef PARSE_H_ONYWMADW
#define PARSE_H_ONYWMADW
#include <gst/gst.h>
typedef struct GstParser GstParser;
typedef struct GstParseState GstParseState;
/* Holds the parsing state */
struct GstParser {
Gst *vm;
const char *error;
GstParseState *data;
GstValue value;
uint32_t count;
uint32_t cap;
uint32_t index;
uint32_t quoteCount;
enum {
GST_PARSER_PENDING = 0,
GST_PARSER_FULL,
GST_PARSER_ERROR,
GST_PARSER_ROOT
} status;
};
/* Initialize a parser */
void gst_parser(GstParser *p, Gst *vm);
/* Parse a c style string. Returns number of bytes read */
int gst_parse_cstring(GstParser *p, const char *string);
/* Parse a gst string. Returns number of bytes read */
int gst_parse_string(GstParser *p, const uint8_t *string);
/* Parse a single byte */
void gst_parse_byte(GstParser *p, uint8_t byte);
/* Check if a parser has a value that needs to be handled. If
* so, the parser will not parse any more input until that value
* is consumed. */
int gst_parse_hasvalue(GstParser *p);
/* Gets a value from the parser */
GstValue gst_parse_consume(GstParser *p);
/* Load the parsing library */
void gst_parse_load(Gst *vm);
#endif /* end of include guard: PARSE_H_ONYWMADW */