fmt-merge-msg: package options into a structure
[git/git.git] / strbuf.h
... / ...
CommitLineData
1#ifndef STRBUF_H
2#define STRBUF_H
3
4/* See Documentation/technical/api-strbuf.txt */
5
6extern char strbuf_slopbuf[];
7struct strbuf {
8 size_t alloc;
9 size_t len;
10 char *buf;
11};
12
13#define STRBUF_INIT { 0, 0, strbuf_slopbuf }
14
15/*----- strbuf life cycle -----*/
16extern void strbuf_init(struct strbuf *, size_t);
17extern void strbuf_release(struct strbuf *);
18extern char *strbuf_detach(struct strbuf *, size_t *);
19extern void strbuf_attach(struct strbuf *, void *, size_t, size_t);
20static inline void strbuf_swap(struct strbuf *a, struct strbuf *b) {
21 struct strbuf tmp = *a;
22 *a = *b;
23 *b = tmp;
24}
25
26/*----- strbuf size related -----*/
27static inline size_t strbuf_avail(const struct strbuf *sb) {
28 return sb->alloc ? sb->alloc - sb->len - 1 : 0;
29}
30
31extern void strbuf_grow(struct strbuf *, size_t);
32
33static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
34 if (len > (sb->alloc ? sb->alloc - 1 : 0))
35 die("BUG: strbuf_setlen() beyond buffer");
36 sb->len = len;
37 sb->buf[len] = '\0';
38}
39#define strbuf_reset(sb) strbuf_setlen(sb, 0)
40
41/*----- content related -----*/
42extern void strbuf_trim(struct strbuf *);
43extern void strbuf_rtrim(struct strbuf *);
44extern void strbuf_ltrim(struct strbuf *);
45extern int strbuf_cmp(const struct strbuf *, const struct strbuf *);
46
47extern struct strbuf **strbuf_split_buf(const char *, size_t,
48 int delim, int max);
49static inline struct strbuf **strbuf_split_str(const char *str,
50 int delim, int max)
51{
52 return strbuf_split_buf(str, strlen(str), delim, max);
53}
54static inline struct strbuf **strbuf_split_max(const struct strbuf *sb,
55 int delim, int max)
56{
57 return strbuf_split_buf(sb->buf, sb->len, delim, max);
58}
59static inline struct strbuf **strbuf_split(const struct strbuf *sb, int delim)
60{
61 return strbuf_split_max(sb, delim, 0);
62}
63extern void strbuf_list_free(struct strbuf **);
64
65/*----- add data in your buffer -----*/
66static inline void strbuf_addch(struct strbuf *sb, int c) {
67 strbuf_grow(sb, 1);
68 sb->buf[sb->len++] = c;
69 sb->buf[sb->len] = '\0';
70}
71
72extern void strbuf_insert(struct strbuf *, size_t pos, const void *, size_t);
73extern void strbuf_remove(struct strbuf *, size_t pos, size_t len);
74
75/* splice pos..pos+len with given data */
76extern void strbuf_splice(struct strbuf *, size_t pos, size_t len,
77 const void *, size_t);
78
79extern void strbuf_add(struct strbuf *, const void *, size_t);
80static inline void strbuf_addstr(struct strbuf *sb, const char *s) {
81 strbuf_add(sb, s, strlen(s));
82}
83static inline void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2) {
84 strbuf_grow(sb, sb2->len);
85 strbuf_add(sb, sb2->buf, sb2->len);
86}
87extern void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len);
88
89typedef size_t (*expand_fn_t) (struct strbuf *sb, const char *placeholder, void *context);
90extern void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, void *context);
91struct strbuf_expand_dict_entry {
92 const char *placeholder;
93 const char *value;
94};
95extern size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, void *context);
96extern void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src);
97
98__attribute__((format (printf,2,3)))
99extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
100__attribute__((format (printf,2,0)))
101extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
102
103extern size_t strbuf_fread(struct strbuf *, size_t, FILE *);
104/* XXX: if read fails, any partial read is undone */
105extern ssize_t strbuf_read(struct strbuf *, int fd, size_t hint);
106extern int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint);
107extern int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint);
108
109extern int strbuf_getwholeline(struct strbuf *, FILE *, int);
110extern int strbuf_getline(struct strbuf *, FILE *, int);
111
112extern void stripspace(struct strbuf *buf, int skip_comments);
113extern int launch_editor(const char *path, struct strbuf *buffer, const char *const *env);
114
115extern int strbuf_branchname(struct strbuf *sb, const char *name);
116extern int strbuf_check_branch_ref(struct strbuf *sb, const char *name);
117
118#endif /* STRBUF_H */