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#ifndef ISL_STREAM_H
#define ISL_STREAM_H
#include <stdio.h>
#if defined(__cplusplus)
extern "C" {
#endif
enum isl_token_type { ISL_TOKEN_UNKNOWN = 256, ISL_TOKEN_VALUE,
ISL_TOKEN_IDENT, ISL_TOKEN_GE,
ISL_TOKEN_LE, ISL_TOKEN_TO, ISL_TOKEN_AND,
ISL_TOKEN_EXISTS };
struct isl_token {
enum isl_token_type type;
unsigned int on_new_line : 1;
int line;
int col;
union {
isl_int v;
char *s;
} u;
};
void isl_token_free(struct isl_token *tok);
struct isl_stream {
struct isl_ctx *ctx;
FILE *file;
const char *str;
int line;
int col;
int eof;
char *buffer;
size_t size;
size_t len;
int c;
struct isl_token *tokens[5];
int n_token;
};
struct isl_stream* isl_stream_new_file(struct isl_ctx *ctx, FILE *file);
struct isl_stream* isl_stream_new_str(struct isl_ctx *ctx, const char *str);
void isl_stream_free(struct isl_stream *s);
void isl_stream_error(struct isl_stream *s, struct isl_token *tok, char *msg);
struct isl_token *isl_stream_next_token(struct isl_stream *s);
void isl_stream_push_token(struct isl_stream *s, struct isl_token *tok);
int isl_stream_eat(struct isl_stream *s, int type);
#if defined(__cplusplus)
}
#endif
#endif
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