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/** BEGIN COPYRIGHT BLOCK
* Copyright 2001 Sun Microsystems, Inc.
* Portions copyright 1999, 2001-2003 Netscape Communications Corporation.
* All rights reserved.
* END COPYRIGHT BLOCK **/
#ifndef __lexer_h
#define __lexer_h
#ifndef _POOL_H_
#include "base/pool.h"
#endif /* _POOL_H_ */
/* Define error codes */
#define LEXERR_MALLOC -1 /* insufficient dynamic memory */
typedef struct LEXStream_s LEXStream_t;
typedef int (*LEXStreamGet_t)(LEXStream_t *);
struct LEXStream_s {
LEXStream_t * lst_next; /* link for "include" parent stream */
void * lst_strmid; /* client stream identifier */
LEXStreamGet_t lst_get; /* pointer to stream "get" function */
char * lst_buf; /* stream buffer pointer */
char * lst_cp; /* current position in buffer */
int lst_len; /* remaining bytes in buffer */
int lst_buflen; /* buffer length */
int lst_flags; /* bit flags */
#define LST_FREEBUF 0x1 /* free lst_buf in stream destroy */
};
NSPR_BEGIN_EXTERN_C
/* Functions in lexer.c */
NSAPI_PUBLIC
int lex_class_check(void * chtab, char code, unsigned long cbits);
NSAPI_PUBLIC
int lex_class_create(int classc, char * classv[], void **pchtab);
NSAPI_PUBLIC void lex_class_destroy(void * chtab);
NSAPI_PUBLIC
LEXStream_t * lex_stream_create(LEXStreamGet_t strmget, void * strmid,
char * buf, int buflen);
NSAPI_PUBLIC void lex_stream_destroy(LEXStream_t * lst);
NSAPI_PUBLIC int
lex_token_new(pool_handle_t * pool, int initlen, int growlen, void **token);
NSAPI_PUBLIC int lex_token_start(void * token);
NSAPI_PUBLIC
char * lex_token_info(void * token, int * tdatalen, int * tbufflen);
NSAPI_PUBLIC char * lex_token(void * token);
NSAPI_PUBLIC void lex_token_destroy(void * token);
NSAPI_PUBLIC
char * lex_token_get(void * token, int * tdatalen, int * tbufflen);
NSAPI_PUBLIC char * lex_token_take(void * token);
NSAPI_PUBLIC
int lex_token_append(void * token, int nbytes, char * src);
NSAPI_PUBLIC
int lex_next_char(LEXStream_t * lst, void * chtab, unsigned long cbits);
NSAPI_PUBLIC
int lex_scan_over(LEXStream_t * lst, void * chtab, unsigned long cbits,
void * token);
NSAPI_PUBLIC
int lex_scan_string(LEXStream_t * lst, void * token, int flags);
NSAPI_PUBLIC
int lex_scan_to(LEXStream_t * lst, void * chtab, unsigned long cbits,
void * token);
NSAPI_PUBLIC
int lex_skip_over(LEXStream_t * lst, void * chtab, unsigned long cbits);
NSAPI_PUBLIC
int lex_skip_to(LEXStream_t * lst, void * chtab, unsigned long cbits);
NSPR_END_EXTERN_C
#endif /* __lexer_h */
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