83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
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#ifndef DBUF_H
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#define DBUF_H
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/*
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* dbuf.c - dynamic buffer interface
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*
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* include LICENSE
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*/
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#include <strmem.h>
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#include <appclass.h>
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#include <stdarg.h>
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/*
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* a function called to refill the buffer
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*/
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typedef char * (*Dbuf_Fill_FP)( AppClass *caller, AppClass *app );
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/* merged with fdbuf flags */
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enum _DbufFlagsInfo {
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DB_STRIP_CR = ( 1 << 0 ), /* if set remove crlf - \r\n -> \n */
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DB_JOIN_LINES = ( 1 << 1 ), /* if set join lines - \\n -> ' ' */
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DB_KEEP_LF = ( 1 << 2 ), /* if set join lines - \\n -> ' ' */
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};
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#define dbuf_check_size(x, y) if ( (y) >= (x)->size - 1) dbuf_renew( (x), (y) );
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typedef struct _DBuf DBuf;
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struct _DBuf {
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AppClass parent;
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char *s; /* pointer to string */
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char *ext_buf; /* pointer to external buffer */
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Dbuf_Fill_FP fill_func; /* application call function to fill the buffer */
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AppClass *caller; /* parameter to fill_func */
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int pos; /* use pos to get - position on string */
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int len; /* use len to fill - string len */
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int size; /* allocated size */
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int nRenew; /* count re-new */
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int flags; /* flags for get_line */
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int lineno; /* keep track of line number for get_line */
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};
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DBuf *dbuf_new( int size, char *ext_buf );
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void dbuf_construct( DBuf *dbuf, int size, char *ext_buf);
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void dbuf_destroy(void *dbuf);
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void dbuf_set_fill_cb( DBuf *dbuf, Dbuf_Fill_FP fill_func, AppClass *caller);
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void dbuf_renew( DBuf *dbuf, int newsize);
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void dbuf_clear( DBuf *dest);
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void dbuf_set_flags( DBuf *dest, int flags);
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void dbuf_set_pos( DBuf *dest, int pos);
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int dbuf_is_empty( DBuf *dest);
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int dbuf_get_lineno( DBuf *dest);
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int dbuf_get_available( DBuf *dest);
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int dbuf_get_pos( DBuf *dest);
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int dbuf_get_size( DBuf *dest);
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void dbuf_set_len( DBuf *dest, int len);
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int dbuf_get_len( DBuf *dest);
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void dbuf_inc_len( DBuf *dest);
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void dbuf_copy( DBuf *dest, DBuf *src);
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void dbuf_ncopy( DBuf *dest, DBuf *src, int slen);
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void dbuf_ncat( DBuf *dest, DBuf *src, int slen);
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void dbuf_cat( DBuf *dest, DBuf *src);
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void dbuf_strncpy( DBuf *dest, char *src, int slen);
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void dbuf_strcpy( DBuf *dest, char *src);
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void dbuf_strncat( DBuf *dest, char *src, int slen);
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void dbuf_strcat( DBuf *dest, char *src);
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void dbuf_concat( DBuf *dest, ...);
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char *dbuf_next_char(DBuf *sbuf);
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int dbuf_get_char(DBuf *sbuf);
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char *dbuf_get_dupchars(DBuf *sbuf, int len);
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int dbuf_unget_char(DBuf *sbuf);
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int dbuf_unput_char(DBuf *sbuf);
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void dbuf_put_char( DBuf *dest, char c);
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char *dbuf_get_line(DBuf *dest, DBuf *src);
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void dbuf_vprintf( DBuf *dest, const char *format, va_list args );
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void dbuf_printf( DBuf *dest, const char *format, ...);
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void dbuf_move_beg( DBuf *dbuf);
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#endif /* DBUF_H */
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