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#ifndef ELX_H
#define ELX_H
#include <stdio.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define ELX_COMMENT 'C' /* a comment */
#define ELX_STRING 'S' /* a string constant */
#define ELX_KEYWORD 'K' /* a language keyword */
#define ELX_GLOBAL_FDEF 'F' /* function defn in global (visible) scope */
#define ELX_LOCAL_FDEF 'L' /* function defn in local (hidden) scope */
#define ELX_METHOD_DEF 'M' /* method definition */
#define ELX_FUNC_REF 'R' /* function reference / call */
#define ELX_DEFINES_SYM(c) ((c) == ELX_GLOBAL_FDEF || (c) == ELX_LOCAL_FDEF \
|| (c) == ELX_METHOD_DEF)
typedef struct
{
/* input filename */
const char *input_fn;
/* output filenames: element extractions, and symbols */
const char *elx_fn;
const char *sym_fn;
/* file pointers for each of the input/output files */
FILE *input_fp;
FILE *elx_fp;
FILE *sym_fp;
} elx_context_t;
elx_context_t *elx_process_args(int argc, const char **argv);
void elx_open_files(elx_context_t *ec);
void elx_close_files(elx_context_t *ec);
void elx_issue_token(elx_context_t *ec,
char which, int start, int len,
const char *symbol);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* ELX_H */
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