4 void strbuf_init(struct strbuf
*sb
, size_t hint
) {
5 memset(sb
, 0, sizeof(*sb
));
10 void strbuf_release(struct strbuf
*sb
) {
12 memset(sb
, 0, sizeof(*sb
));
15 void strbuf_reset(struct strbuf
*sb
) {
21 char *strbuf_detach(struct strbuf
*sb
) {
27 void strbuf_grow(struct strbuf
*sb
, size_t extra
) {
28 if (sb
->len
+ extra
+ 1 <= sb
->len
)
29 die("you want to use way too much memory");
30 ALLOC_GROW(sb
->buf
, sb
->len
+ extra
+ 1, sb
->alloc
);
33 void strbuf_rtrim(struct strbuf
*sb
)
35 while (sb
->len
> 0 && isspace((unsigned char)sb
->buf
[sb
->len
- 1]))
37 sb
->buf
[sb
->len
] = '\0';
40 void strbuf_insert(struct strbuf
*sb
, size_t pos
, const void *data
, size_t len
) {
45 memmove(sb
->buf
+ pos
+ len
, sb
->buf
+ pos
, sb
->len
- pos
);
47 memcpy(sb
->buf
+ pos
, data
, len
);
48 strbuf_setlen(sb
, sb
->len
+ len
);
51 void strbuf_add(struct strbuf
*sb
, const void *data
, size_t len
) {
53 memcpy(sb
->buf
+ sb
->len
, data
, len
);
54 strbuf_setlen(sb
, sb
->len
+ len
);
57 void strbuf_addf(struct strbuf
*sb
, const char *fmt
, ...) {
62 len
= vsnprintf(sb
->buf
+ sb
->len
, sb
->alloc
- sb
->len
, fmt
, ap
);
67 if (len
> strbuf_avail(sb
)) {
70 len
= vsnprintf(sb
->buf
+ sb
->len
, sb
->alloc
- sb
->len
, fmt
, ap
);
72 if (len
> strbuf_avail(sb
)) {
73 die("this should not happen, your snprintf is broken");
76 strbuf_setlen(sb
, sb
->len
+ len
);
79 size_t strbuf_fread(struct strbuf
*sb
, size_t size
, FILE *f
) {
82 strbuf_grow(sb
, size
);
83 res
= fread(sb
->buf
+ sb
->len
, 1, size
, f
);
85 strbuf_setlen(sb
, sb
->len
+ res
);
90 ssize_t
strbuf_read(struct strbuf
*sb
, int fd
, size_t hint
)
92 size_t oldlen
= sb
->len
;
94 strbuf_grow(sb
, hint
? hint
: 8192);
98 cnt
= xread(fd
, sb
->buf
+ sb
->len
, sb
->alloc
- sb
->len
- 1);
100 strbuf_setlen(sb
, oldlen
);
106 strbuf_grow(sb
, 8192);
109 sb
->buf
[sb
->len
] = '\0';
110 return sb
->len
- oldlen
;
113 void read_line(struct strbuf
*sb
, FILE *fp
, int term
) {
122 while ((ch
= fgetc(fp
)) != EOF
) {
126 sb
->buf
[sb
->len
++] = ch
;
128 if (ch
== EOF
&& sb
->len
== 0) {
134 sb
->buf
[sb
->len
] = '\0';