index-pack: use strip_suffix to avoid magic numbers
[git/git.git] / strbuf.h
CommitLineData
d1df5743
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1#ifndef STRBUF_H
2#define STRBUF_H
b449f4cf 3
e0390119 4/* See Documentation/technical/api-strbuf.txt */
b449f4cf 5
b315c5c0 6extern char strbuf_slopbuf[];
d1df5743 7struct strbuf {
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PH
8 size_t alloc;
9 size_t len;
bf0f910d 10 char *buf;
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11};
12
b315c5c0 13#define STRBUF_INIT { 0, 0, strbuf_slopbuf }
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14
15/*----- strbuf life cycle -----*/
f1696ee3 16extern void strbuf_init(struct strbuf *, size_t);
b449f4cf 17extern void strbuf_release(struct strbuf *);
b315c5c0 18extern char *strbuf_detach(struct strbuf *, size_t *);
917c9a71 19extern void strbuf_attach(struct strbuf *, void *, size_t, size_t);
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NTND
20static inline void strbuf_swap(struct strbuf *a, struct strbuf *b)
21{
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22 struct strbuf tmp = *a;
23 *a = *b;
24 *b = tmp;
25}
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26
27/*----- strbuf size related -----*/
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28static inline size_t strbuf_avail(const struct strbuf *sb)
29{
c76689df 30 return sb->alloc ? sb->alloc - sb->len - 1 : 0;
b449f4cf 31}
a8f3e221
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32
33extern void strbuf_grow(struct strbuf *, size_t);
34
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NTND
35static inline void strbuf_setlen(struct strbuf *sb, size_t len)
36{
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37 if (len > (sb->alloc ? sb->alloc - 1 : 0))
38 die("BUG: strbuf_setlen() beyond buffer");
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39 sb->len = len;
40 sb->buf[len] = '\0';
b449f4cf 41}
b315c5c0 42#define strbuf_reset(sb) strbuf_setlen(sb, 0)
b449f4cf 43
f1696ee3 44/*----- content related -----*/
eacd6dc5 45extern void strbuf_trim(struct strbuf *);
f1696ee3 46extern void strbuf_rtrim(struct strbuf *);
eacd6dc5 47extern void strbuf_ltrim(struct strbuf *);
9b200fd6 48extern int strbuf_cmp(const struct strbuf *, const struct strbuf *);
eacd6dc5 49
06379a65
MH
50/*
51 * Split str (of length slen) at the specified terminator character.
52 * Return a null-terminated array of pointers to strbuf objects
53 * holding the substrings. The substrings include the terminator,
54 * except for the last substring, which might be unterminated if the
55 * original string did not end with a terminator. If max is positive,
56 * then split the string into at most max substrings (with the last
57 * substring containing everything following the (max-1)th terminator
58 * character).
59 *
60 * For lighter-weight alternatives, see string_list_split() and
61 * string_list_split_in_place().
62 */
2f1d9e2b 63extern struct strbuf **strbuf_split_buf(const char *, size_t,
17b73dc6 64 int terminator, int max);
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65
66/*
67 * Split a NUL-terminated string at the specified terminator
68 * character. See strbuf_split_buf() for more information.
69 */
2f1d9e2b 70static inline struct strbuf **strbuf_split_str(const char *str,
17b73dc6 71 int terminator, int max)
2f1d9e2b 72{
17b73dc6 73 return strbuf_split_buf(str, strlen(str), terminator, max);
2f1d9e2b 74}
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75
76/*
77 * Split a strbuf at the specified terminator character. See
78 * strbuf_split_buf() for more information.
79 */
2f1d9e2b 80static inline struct strbuf **strbuf_split_max(const struct strbuf *sb,
17b73dc6 81 int terminator, int max)
2f1d9e2b 82{
17b73dc6 83 return strbuf_split_buf(sb->buf, sb->len, terminator, max);
2f1d9e2b 84}
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85
86/*
87 * Split a strbuf at the specified terminator character. See
88 * strbuf_split_buf() for more information.
89 */
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90static inline struct strbuf **strbuf_split(const struct strbuf *sb,
91 int terminator)
28fc3a68 92{
17b73dc6 93 return strbuf_split_max(sb, terminator, 0);
28fc3a68 94}
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95
96/*
97 * Free a NULL-terminated list of strbufs (for example, the return
98 * values of the strbuf_split*() functions).
99 */
eacd6dc5 100extern void strbuf_list_free(struct strbuf **);
f1696ee3 101
b449f4cf 102/*----- add data in your buffer -----*/
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103static inline void strbuf_addch(struct strbuf *sb, int c)
104{
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105 strbuf_grow(sb, 1);
106 sb->buf[sb->len++] = c;
107 sb->buf[sb->len] = '\0';
108}
109
f1696ee3 110extern void strbuf_insert(struct strbuf *, size_t pos, const void *, size_t);
c76689df 111extern void strbuf_remove(struct strbuf *, size_t pos, size_t len);
f1696ee3 112
917c9a71
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113/* splice pos..pos+len with given data */
114extern void strbuf_splice(struct strbuf *, size_t pos, size_t len,
c76689df 115 const void *, size_t);
917c9a71 116
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117extern void strbuf_add_commented_lines(struct strbuf *out, const char *buf, size_t size);
118
b449f4cf 119extern void strbuf_add(struct strbuf *, const void *, size_t);
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120static inline void strbuf_addstr(struct strbuf *sb, const char *s)
121{
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122 strbuf_add(sb, s, strlen(s));
123}
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124static inline void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2)
125{
81d2caef 126 strbuf_grow(sb, sb2->len);
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127 strbuf_add(sb, sb2->buf, sb2->len);
128}
91db267e 129extern void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len);
b449f4cf 130
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131typedef size_t (*expand_fn_t) (struct strbuf *sb, const char *placeholder, void *context);
132extern void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn, void *context);
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133struct strbuf_expand_dict_entry {
134 const char *placeholder;
135 const char *value;
136};
137extern size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder, void *context);
361df5df 138extern void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src);
cde75e59 139
28bea9e5 140__attribute__((format (printf,2,3)))
b449f4cf 141extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
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142__attribute__((format (printf, 2, 3)))
143extern void strbuf_commented_addf(struct strbuf *sb, const char *fmt, ...);
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144__attribute__((format (printf,2,0)))
145extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
b449f4cf 146
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147extern void strbuf_add_lines(struct strbuf *sb, const char *prefix, const char *buf, size_t size);
148
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149/*
150 * Append s to sb, with the characters '<', '>', '&' and '"' converted
151 * into XML entities.
152 */
153extern void strbuf_addstr_xml_quoted(struct strbuf *sb, const char *s);
154
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155static inline void strbuf_complete_line(struct strbuf *sb)
156{
157 if (sb->len && sb->buf[sb->len - 1] != '\n')
158 strbuf_addch(sb, '\n');
159}
160
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161extern size_t strbuf_fread(struct strbuf *, size_t, FILE *);
162/* XXX: if read fails, any partial read is undone */
f1696ee3 163extern ssize_t strbuf_read(struct strbuf *, int fd, size_t hint);
387e7e19 164extern int strbuf_read_file(struct strbuf *sb, const char *path, size_t hint);
b11b7e13 165extern int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint);
b449f4cf 166
c7e4f0d7 167extern int strbuf_getwholeline(struct strbuf *, FILE *, int);
e6c019d0 168extern int strbuf_getline(struct strbuf *, FILE *, int);
5e8617f5 169extern int strbuf_getwholeline_fd(struct strbuf *, int, int);
d1df5743 170
6d69b6f6 171extern void stripspace(struct strbuf *buf, int skip_comments);
7198203a 172extern int launch_editor(const char *path, struct strbuf *buffer, const char *const *env);
6d69b6f6 173
a552de75 174extern int strbuf_branchname(struct strbuf *sb, const char *name);
a2fab531 175extern int strbuf_check_branch_ref(struct strbuf *sb, const char *name);
a552de75 176
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177extern void strbuf_addstr_urlencode(struct strbuf *, const char *,
178 int reserved);
079b546a 179extern void strbuf_humanise_bytes(struct strbuf *buf, off_t bytes);
c505116b 180
9a0a30aa
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181__attribute__((format (printf,1,2)))
182extern int printf_ln(const char *fmt, ...);
183__attribute__((format (printf,2,3)))
184extern int fprintf_ln(FILE *fp, const char *fmt, ...);
185
d1df5743 186#endif /* STRBUF_H */