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      1 #include <isl_int.h>
      2 #include <isl/stream.h>
      3 #include <isl_yaml.h>
      4 
      5 struct isl_token {
      6 	int type;
      7 
      8 	unsigned int on_new_line : 1;
      9 	unsigned is_keyword : 1;
     10 	int line;
     11 	int col;
     12 
     13 	union {
     14 		isl_int	v;
     15 		char	*s;
     16 		isl_map *map;
     17 		isl_pw_aff *pwaff;
     18 	} u;
     19 };
     20 
     21 struct isl_token *isl_token_new(isl_ctx *ctx,
     22 	int line, int col, unsigned on_new_line);
     23 
     24 /* An input stream that may be either a file or a string.
     25  *
     26  * line and col are the line and column number of the next character (1-based).
     27  * start_line and start_col are set by isl_stream_getc to point
     28  * to the position of the returned character.
     29  * last_line is the line number of the previous token.
     30  *
     31  * yaml_state and yaml_indent keep track of the currently active YAML
     32  * elements.  yaml_size is the size of these arrays, while yaml_depth
     33  * is the number of elements currently in use.
     34  * yaml_state and yaml_indent may be NULL if no YAML parsing is being
     35  * performed.
     36  * yaml_state keeps track of what is expected next at each level.
     37  * yaml_indent keeps track of the indentation at each level, with
     38  * ISL_YAML_INDENT_FLOW meaning that the element is in flow format
     39  * (such that the indentation is not relevant).
     40  */
     41 struct isl_stream {
     42 	struct isl_ctx	*ctx;
     43 	FILE        	*file;
     44 	const char  	*str;
     45 	int	    	line;
     46 	int	    	col;
     47 	int		start_line;
     48 	int		start_col;
     49 	int		last_line;
     50 	int	    	eof;
     51 
     52 	char	    	*buffer;
     53 	size_t	    	size;
     54 	size_t	    	len;
     55 	int	    	c;
     56 	int		un[5];
     57 	int		n_un;
     58 
     59 	struct isl_token	*tokens[5];
     60 	int	    	n_token;
     61 
     62 	struct isl_hash_table	*keywords;
     63 	enum isl_token_type	 next_type;
     64 
     65 	int			yaml_depth;
     66 	int			yaml_size;
     67 	enum isl_yaml_state	*yaml_state;
     68 	int			*yaml_indent;
     69 };
     70