1 #ifndef _LIBSTRING_H_
2 #define _LIBSTRING_H_ 1
3 #if defined(__cplusplus)
4 extern "C" { 
5 #endif
6 
7 /*
8 #pragma	src	"/sys/src/libString"
9 #pragma	lib	"libString.a"
10 */
11 AUTOLIB(String)
12 
13 /* extensible Strings */
14 typedef struct String {
15 	Lock	lk;
16 	char	*base;	/* base of String */
17 	char	*end;	/* end of allocated space+1 */
18 	char	*ptr;	/* ptr into String */
19 	short	ref;
20 	uchar	fixed;
21 } String;
22 
23 #define s_clone(s) s_copy((s)->base)
24 #define s_to_c(s) ((s)->base)
25 #define s_len(s) ((s)->ptr-(s)->base)
26 
27 extern String*	s_append(String*, char*);
28 extern String*	s_array(char*, int);
29 extern String*	s_copy(char*);
30 extern void	s_free(String*);
31 extern String*	s_incref(String*);	
32 extern String*	s_memappend(String*, char*, int);
33 extern String*	s_nappend(String*, char*, int);
34 extern String*	s_new(void);
35 extern String*	s_newalloc(int);
36 extern String*	s_parse(String*, String*);
37 extern String*	s_reset(String*);
38 extern String*	s_restart(String*);
39 extern void	s_terminate(String*);
40 extern void	s_tolower(String*);
41 extern void	s_putc(String*, int);
42 extern String*	s_unique(String*);
43 extern String*	s_grow(String*, int);
44 
45 #ifdef BGETC
46 extern int	s_read(Biobuf*, String*, int);
47 extern char	*s_read_line(Biobuf*, String*);
48 extern char	*s_getline(Biobuf*, String*);
49 typedef struct Sinstack Sinstack;
50 extern char	*s_rdinstack(Sinstack*, String*);
51 extern Sinstack	*s_allocinstack(char*);
52 extern void	s_freeinstack(Sinstack*);
53 #endif /* BGETC */
54 #if defined(__cplusplus)
55 }
56 #endif
57 #endif