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