mirror of
https://github.com/git/git
synced 2024-08-27 11:39:22 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
Further shuffling of declarations across header files to streamline file dependencies. * cw/compat-util-header-cleanup: git-compat-util: move alloc macros to git-compat-util.h treewide: remove unnecessary includes for wrapper.h kwset: move translation table from ctype sane-ctype.h: create header for sane-ctype macros git-compat-util: move wrapper.c funcs to its header git-compat-util: move strbuf.c funcs to its header
707 lines
23 KiB
C
707 lines
23 KiB
C
#ifndef STRBUF_H
|
|
#define STRBUF_H
|
|
|
|
/*
|
|
* NOTE FOR STRBUF DEVELOPERS
|
|
*
|
|
* strbuf is a low-level primitive; as such it should interact only
|
|
* with other low-level primitives. Do not introduce new functions
|
|
* which interact with higher-level APIs.
|
|
*/
|
|
|
|
struct string_list;
|
|
|
|
/**
|
|
* strbuf's are meant to be used with all the usual C string and memory
|
|
* APIs. Given that the length of the buffer is known, it's often better to
|
|
* use the mem* functions than a str* one (memchr vs. strchr e.g.).
|
|
* Though, one has to be careful about the fact that str* functions often
|
|
* stop on NULs and that strbufs may have embedded NULs.
|
|
*
|
|
* A strbuf is NUL terminated for convenience, but no function in the
|
|
* strbuf API actually relies on the string being free of NULs.
|
|
*
|
|
* strbufs have some invariants that are very important to keep in mind:
|
|
*
|
|
* - The `buf` member is never NULL, so it can be used in any usual C
|
|
* string operations safely. strbuf's _have_ to be initialized either by
|
|
* `strbuf_init()` or by `= STRBUF_INIT` before the invariants, though.
|
|
*
|
|
* Do *not* assume anything on what `buf` really is (e.g. if it is
|
|
* allocated memory or not), use `strbuf_detach()` to unwrap a memory
|
|
* buffer from its strbuf shell in a safe way. That is the sole supported
|
|
* way. This will give you a malloced buffer that you can later `free()`.
|
|
*
|
|
* However, it is totally safe to modify anything in the string pointed by
|
|
* the `buf` member, between the indices `0` and `len-1` (inclusive).
|
|
*
|
|
* - The `buf` member is a byte array that has at least `len + 1` bytes
|
|
* allocated. The extra byte is used to store a `'\0'`, allowing the
|
|
* `buf` member to be a valid C-string. Every strbuf function ensure this
|
|
* invariant is preserved.
|
|
*
|
|
* NOTE: It is OK to "play" with the buffer directly if you work it this
|
|
* way:
|
|
*
|
|
* strbuf_grow(sb, SOME_SIZE); <1>
|
|
* strbuf_setlen(sb, sb->len + SOME_OTHER_SIZE);
|
|
*
|
|
* <1> Here, the memory array starting at `sb->buf`, and of length
|
|
* `strbuf_avail(sb)` is all yours, and you can be sure that
|
|
* `strbuf_avail(sb)` is at least `SOME_SIZE`.
|
|
*
|
|
* NOTE: `SOME_OTHER_SIZE` must be smaller or equal to `strbuf_avail(sb)`.
|
|
*
|
|
* Doing so is safe, though if it has to be done in many places, adding the
|
|
* missing API to the strbuf module is the way to go.
|
|
*
|
|
* WARNING: Do _not_ assume that the area that is yours is of size `alloc
|
|
* - 1` even if it's true in the current implementation. Alloc is somehow a
|
|
* "private" member that should not be messed with. Use `strbuf_avail()`
|
|
* instead.
|
|
*/
|
|
|
|
/**
|
|
* Data Structures
|
|
* ---------------
|
|
*/
|
|
|
|
/**
|
|
* This is the string buffer structure. The `len` member can be used to
|
|
* determine the current length of the string, and `buf` member provides
|
|
* access to the string itself.
|
|
*/
|
|
struct strbuf {
|
|
size_t alloc;
|
|
size_t len;
|
|
char *buf;
|
|
};
|
|
|
|
extern char strbuf_slopbuf[];
|
|
#define STRBUF_INIT { .buf = strbuf_slopbuf }
|
|
|
|
struct object_id;
|
|
|
|
/**
|
|
* Life Cycle Functions
|
|
* --------------------
|
|
*/
|
|
|
|
/**
|
|
* Initialize the structure. The second parameter can be zero or a bigger
|
|
* number to allocate memory, in case you want to prevent further reallocs.
|
|
*/
|
|
void strbuf_init(struct strbuf *sb, size_t alloc);
|
|
|
|
/**
|
|
* Release a string buffer and the memory it used. After this call, the
|
|
* strbuf points to an empty string that does not need to be free()ed, as
|
|
* if it had been set to `STRBUF_INIT` and never modified.
|
|
*
|
|
* To clear a strbuf in preparation for further use without the overhead
|
|
* of free()ing and malloc()ing again, use strbuf_reset() instead.
|
|
*/
|
|
void strbuf_release(struct strbuf *sb);
|
|
|
|
/**
|
|
* Detach the string from the strbuf and returns it; you now own the
|
|
* storage the string occupies and it is your responsibility from then on
|
|
* to release it with `free(3)` when you are done with it.
|
|
*
|
|
* The strbuf that previously held the string is reset to `STRBUF_INIT` so
|
|
* it can be reused after calling this function.
|
|
*/
|
|
char *strbuf_detach(struct strbuf *sb, size_t *sz);
|
|
|
|
/**
|
|
* Attach a string to a buffer. You should specify the string to attach,
|
|
* the current length of the string and the amount of allocated memory.
|
|
* The amount must be larger than the string length, because the string you
|
|
* pass is supposed to be a NUL-terminated string. This string _must_ be
|
|
* malloc()ed, and after attaching, the pointer cannot be relied upon
|
|
* anymore, and neither be free()d directly.
|
|
*/
|
|
void strbuf_attach(struct strbuf *sb, void *str, size_t len, size_t mem);
|
|
|
|
/**
|
|
* Swap the contents of two string buffers.
|
|
*/
|
|
static inline void strbuf_swap(struct strbuf *a, struct strbuf *b)
|
|
{
|
|
SWAP(*a, *b);
|
|
}
|
|
|
|
|
|
/**
|
|
* Functions related to the size of the buffer
|
|
* -------------------------------------------
|
|
*/
|
|
|
|
/**
|
|
* Determine the amount of allocated but unused memory.
|
|
*/
|
|
static inline size_t strbuf_avail(const struct strbuf *sb)
|
|
{
|
|
return sb->alloc ? sb->alloc - sb->len - 1 : 0;
|
|
}
|
|
|
|
/**
|
|
* Ensure that at least this amount of unused memory is available after
|
|
* `len`. This is used when you know a typical size for what you will add
|
|
* and want to avoid repetitive automatic resizing of the underlying buffer.
|
|
* This is never a needed operation, but can be critical for performance in
|
|
* some cases.
|
|
*/
|
|
void strbuf_grow(struct strbuf *sb, size_t amount);
|
|
|
|
/**
|
|
* Set the length of the buffer to a given value. This function does *not*
|
|
* allocate new memory, so you should not perform a `strbuf_setlen()` to a
|
|
* length that is larger than `len + strbuf_avail()`. `strbuf_setlen()` is
|
|
* just meant as a 'please fix invariants from this strbuf I just messed
|
|
* with'.
|
|
*/
|
|
static inline void strbuf_setlen(struct strbuf *sb, size_t len)
|
|
{
|
|
if (len > (sb->alloc ? sb->alloc - 1 : 0))
|
|
BUG("strbuf_setlen() beyond buffer");
|
|
sb->len = len;
|
|
if (sb->buf != strbuf_slopbuf)
|
|
sb->buf[len] = '\0';
|
|
else
|
|
assert(!strbuf_slopbuf[0]);
|
|
}
|
|
|
|
/**
|
|
* Empty the buffer by setting the size of it to zero.
|
|
*/
|
|
#define strbuf_reset(sb) strbuf_setlen(sb, 0)
|
|
|
|
|
|
/**
|
|
* Functions related to the contents of the buffer
|
|
* -----------------------------------------------
|
|
*/
|
|
|
|
/**
|
|
* Strip whitespace from the beginning (`ltrim`), end (`rtrim`), or both side
|
|
* (`trim`) of a string.
|
|
*/
|
|
void strbuf_trim(struct strbuf *sb);
|
|
void strbuf_rtrim(struct strbuf *sb);
|
|
void strbuf_ltrim(struct strbuf *sb);
|
|
|
|
/* Strip trailing directory separators */
|
|
void strbuf_trim_trailing_dir_sep(struct strbuf *sb);
|
|
|
|
/* Strip trailing LF or CR/LF */
|
|
void strbuf_trim_trailing_newline(struct strbuf *sb);
|
|
|
|
/**
|
|
* Replace the contents of the strbuf with a reencoded form. Returns -1
|
|
* on error, 0 on success.
|
|
*/
|
|
int strbuf_reencode(struct strbuf *sb, const char *from, const char *to);
|
|
|
|
/**
|
|
* Lowercase each character in the buffer using `tolower`.
|
|
*/
|
|
void strbuf_tolower(struct strbuf *sb);
|
|
|
|
/**
|
|
* Compare two buffers. Returns an integer less than, equal to, or greater
|
|
* than zero if the first buffer is found, respectively, to be less than,
|
|
* to match, or be greater than the second buffer.
|
|
*/
|
|
int strbuf_cmp(const struct strbuf *first, const struct strbuf *second);
|
|
|
|
|
|
/**
|
|
* Adding data to the buffer
|
|
* -------------------------
|
|
*
|
|
* NOTE: All of the functions in this section will grow the buffer as
|
|
* necessary. If they fail for some reason other than memory shortage and the
|
|
* buffer hadn't been allocated before (i.e. the `struct strbuf` was set to
|
|
* `STRBUF_INIT`), then they will free() it.
|
|
*/
|
|
|
|
/**
|
|
* Add a single character to the buffer.
|
|
*/
|
|
static inline void strbuf_addch(struct strbuf *sb, int c)
|
|
{
|
|
if (!strbuf_avail(sb))
|
|
strbuf_grow(sb, 1);
|
|
sb->buf[sb->len++] = c;
|
|
sb->buf[sb->len] = '\0';
|
|
}
|
|
|
|
/**
|
|
* Add a character the specified number of times to the buffer.
|
|
*/
|
|
void strbuf_addchars(struct strbuf *sb, int c, size_t n);
|
|
|
|
/**
|
|
* Insert data to the given position of the buffer. The remaining contents
|
|
* will be shifted, not overwritten.
|
|
*/
|
|
void strbuf_insert(struct strbuf *sb, size_t pos, const void *, size_t);
|
|
|
|
/**
|
|
* Insert a NUL-terminated string to the given position of the buffer.
|
|
* The remaining contents will be shifted, not overwritten. It's an
|
|
* inline function to allow the compiler to resolve strlen() calls on
|
|
* constants at compile time.
|
|
*/
|
|
static inline void strbuf_insertstr(struct strbuf *sb, size_t pos,
|
|
const char *s)
|
|
{
|
|
strbuf_insert(sb, pos, s, strlen(s));
|
|
}
|
|
|
|
/**
|
|
* Insert data to the given position of the buffer giving a printf format
|
|
* string. The contents will be shifted, not overwritten.
|
|
*/
|
|
void strbuf_vinsertf(struct strbuf *sb, size_t pos, const char *fmt,
|
|
va_list ap);
|
|
|
|
__attribute__((format (printf, 3, 4)))
|
|
void strbuf_insertf(struct strbuf *sb, size_t pos, const char *fmt, ...);
|
|
|
|
/**
|
|
* Remove given amount of data from a given position of the buffer.
|
|
*/
|
|
void strbuf_remove(struct strbuf *sb, size_t pos, size_t len);
|
|
|
|
/**
|
|
* Remove the bytes between `pos..pos+len` and replace it with the given
|
|
* data.
|
|
*/
|
|
void strbuf_splice(struct strbuf *sb, size_t pos, size_t len,
|
|
const void *data, size_t data_len);
|
|
|
|
/**
|
|
* Add a NUL-terminated string to the buffer. Each line will be prepended
|
|
* by a comment character and a blank.
|
|
*/
|
|
void strbuf_add_commented_lines(struct strbuf *out,
|
|
const char *buf, size_t size,
|
|
char comment_line_char);
|
|
|
|
|
|
/**
|
|
* Add data of given length to the buffer.
|
|
*/
|
|
void strbuf_add(struct strbuf *sb, const void *data, size_t len);
|
|
|
|
/**
|
|
* Add a NUL-terminated string to the buffer.
|
|
*
|
|
* NOTE: This function will *always* be implemented as an inline or a macro
|
|
* using strlen, meaning that this is efficient to write things like:
|
|
*
|
|
* strbuf_addstr(sb, "immediate string");
|
|
*
|
|
*/
|
|
static inline void strbuf_addstr(struct strbuf *sb, const char *s)
|
|
{
|
|
strbuf_add(sb, s, strlen(s));
|
|
}
|
|
|
|
/**
|
|
* Copy the contents of another buffer at the end of the current one.
|
|
*/
|
|
void strbuf_addbuf(struct strbuf *sb, const struct strbuf *sb2);
|
|
|
|
/**
|
|
* Join the arguments into a buffer. `delim` is put between every
|
|
* two arguments.
|
|
*/
|
|
const char *strbuf_join_argv(struct strbuf *buf, int argc,
|
|
const char **argv, char delim);
|
|
|
|
/**
|
|
* Used with `strbuf_expand_step` to expand the literals %n and %x
|
|
* followed by two hexadecimal digits. Returns the number of recognized
|
|
* characters.
|
|
*/
|
|
size_t strbuf_expand_literal(struct strbuf *sb, const char *placeholder);
|
|
|
|
/**
|
|
* If the string pointed to by `formatp` contains a percent sign ("%"),
|
|
* advance it to point to the character following the next one and
|
|
* return 1, otherwise return 0. Append the substring before that
|
|
* percent sign to `sb`, or the whole string if there is none.
|
|
*/
|
|
int strbuf_expand_step(struct strbuf *sb, const char **formatp);
|
|
|
|
/**
|
|
* Append the contents of one strbuf to another, quoting any
|
|
* percent signs ("%") into double-percents ("%%") in the
|
|
* destination. This is useful for literal data to be fed to either
|
|
* strbuf_expand or to the *printf family of functions.
|
|
*/
|
|
void strbuf_addbuf_percentquote(struct strbuf *dst, const struct strbuf *src);
|
|
|
|
#define STRBUF_ENCODE_SLASH 1
|
|
|
|
/**
|
|
* Append the contents of a string to a strbuf, percent-encoding any characters
|
|
* that are needed to be encoded for a URL.
|
|
*
|
|
* If STRBUF_ENCODE_SLASH is set in flags, percent-encode slashes. Otherwise,
|
|
* slashes are not percent-encoded.
|
|
*/
|
|
void strbuf_add_percentencode(struct strbuf *dst, const char *src, int flags);
|
|
|
|
/**
|
|
* Append the given byte size as a human-readable string (i.e. 12.23 KiB,
|
|
* 3.50 MiB).
|
|
*/
|
|
void strbuf_humanise_bytes(struct strbuf *buf, off_t bytes);
|
|
|
|
/**
|
|
* Append the given byte rate as a human-readable string (i.e. 12.23 KiB/s,
|
|
* 3.50 MiB/s).
|
|
*/
|
|
void strbuf_humanise_rate(struct strbuf *buf, off_t bytes);
|
|
|
|
/**
|
|
* Add a formatted string to the buffer.
|
|
*/
|
|
__attribute__((format (printf,2,3)))
|
|
void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
|
|
|
|
/**
|
|
* Add a formatted string prepended by a comment character and a
|
|
* blank to the buffer.
|
|
*/
|
|
__attribute__((format (printf, 3, 4)))
|
|
void strbuf_commented_addf(struct strbuf *sb, char comment_line_char, const char *fmt, ...);
|
|
|
|
__attribute__((format (printf,2,0)))
|
|
void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
|
|
|
|
/**
|
|
* Add the time specified by `tm`, as formatted by `strftime`.
|
|
* `tz_offset` is in decimal hhmm format, e.g. -600 means six hours west
|
|
* of Greenwich, and it's used to expand %z internally. However, tokens
|
|
* with modifiers (e.g. %Ez) are passed to `strftime`.
|
|
* `suppress_tz_name`, when set, expands %Z internally to the empty
|
|
* string rather than passing it to `strftime`.
|
|
*/
|
|
void strbuf_addftime(struct strbuf *sb, const char *fmt,
|
|
const struct tm *tm, int tz_offset,
|
|
int suppress_tz_name);
|
|
|
|
/**
|
|
* Read a given size of data from a FILE* pointer to the buffer.
|
|
*
|
|
* NOTE: The buffer is rewound if the read fails. If -1 is returned,
|
|
* `errno` must be consulted, like you would do for `read(3)`.
|
|
* `strbuf_read()`, `strbuf_read_file()` and `strbuf_getline_*()`
|
|
* family of functions have the same behaviour as well.
|
|
*/
|
|
size_t strbuf_fread(struct strbuf *sb, size_t size, FILE *file);
|
|
|
|
/**
|
|
* Read the contents of a given file descriptor. The third argument can be
|
|
* used to give a hint about the file size, to avoid reallocs. If read fails,
|
|
* any partial read is undone.
|
|
*/
|
|
ssize_t strbuf_read(struct strbuf *sb, int fd, size_t hint);
|
|
|
|
/**
|
|
* Read the contents of a given file descriptor partially by using only one
|
|
* attempt of xread. The third argument can be used to give a hint about the
|
|
* file size, to avoid reallocs. Returns the number of new bytes appended to
|
|
* the sb.
|
|
*/
|
|
ssize_t strbuf_read_once(struct strbuf *sb, int fd, size_t hint);
|
|
|
|
/**
|
|
* Read the contents of a file, specified by its path. The third argument
|
|
* can be used to give a hint about the file size, to avoid reallocs.
|
|
* Return the number of bytes read or a negative value if some error
|
|
* occurred while opening or reading the file.
|
|
*/
|
|
ssize_t strbuf_read_file(struct strbuf *sb, const char *path, size_t hint);
|
|
|
|
/**
|
|
* Read the target of a symbolic link, specified by its path. The third
|
|
* argument can be used to give a hint about the size, to avoid reallocs.
|
|
*/
|
|
int strbuf_readlink(struct strbuf *sb, const char *path, size_t hint);
|
|
|
|
/**
|
|
* Write the whole content of the strbuf to the stream not stopping at
|
|
* NUL bytes.
|
|
*/
|
|
ssize_t strbuf_write(struct strbuf *sb, FILE *stream);
|
|
|
|
/**
|
|
* Read from a FILE * until the specified terminator is encountered,
|
|
* overwriting the existing contents of the strbuf.
|
|
*
|
|
* Reading stops after the terminator or at EOF. The terminator is
|
|
* removed from the buffer before returning. If the terminator is LF
|
|
* and if it is preceded by a CR, then the whole CRLF is stripped.
|
|
* Returns 0 unless there was nothing left before EOF, in which case
|
|
* it returns `EOF`.
|
|
*/
|
|
int strbuf_getdelim_strip_crlf(struct strbuf *sb, FILE *fp, int term);
|
|
|
|
/**
|
|
* Read a line from a FILE *, overwriting the existing contents of
|
|
* the strbuf. The strbuf_getline*() family of functions share
|
|
* this signature, but have different line termination conventions.
|
|
*
|
|
* Reading stops after the terminator or at EOF. The terminator
|
|
* is removed from the buffer before returning. Returns 0 unless
|
|
* there was nothing left before EOF, in which case it returns `EOF`.
|
|
*/
|
|
typedef int (*strbuf_getline_fn)(struct strbuf *, FILE *);
|
|
|
|
/* Uses LF as the line terminator */
|
|
int strbuf_getline_lf(struct strbuf *sb, FILE *fp);
|
|
|
|
/* Uses NUL as the line terminator */
|
|
int strbuf_getline_nul(struct strbuf *sb, FILE *fp);
|
|
|
|
/*
|
|
* Similar to strbuf_getline_lf(), but additionally treats a CR that
|
|
* comes immediately before the LF as part of the terminator.
|
|
* This is the most friendly version to be used to read "text" files
|
|
* that can come from platforms whose native text format is CRLF
|
|
* terminated.
|
|
*/
|
|
int strbuf_getline(struct strbuf *sb, FILE *file);
|
|
|
|
|
|
/**
|
|
* Like `strbuf_getline`, but keeps the trailing terminator (if
|
|
* any) in the buffer.
|
|
*/
|
|
int strbuf_getwholeline(struct strbuf *sb, FILE *file, int term);
|
|
|
|
/**
|
|
* Like `strbuf_getwholeline`, but appends the line instead of
|
|
* resetting the buffer first.
|
|
*/
|
|
int strbuf_appendwholeline(struct strbuf *sb, FILE *file, int term);
|
|
|
|
/**
|
|
* Like `strbuf_getwholeline`, but operates on a file descriptor.
|
|
* It reads one character at a time, so it is very slow. Do not
|
|
* use it unless you need the correct position in the file
|
|
* descriptor.
|
|
*/
|
|
int strbuf_getwholeline_fd(struct strbuf *sb, int fd, int term);
|
|
|
|
/**
|
|
* Set the buffer to the path of the current working directory.
|
|
*/
|
|
int strbuf_getcwd(struct strbuf *sb);
|
|
|
|
/**
|
|
* Normalize in-place the path contained in the strbuf. See
|
|
* normalize_path_copy() for details. If an error occurs, the contents of "sb"
|
|
* are left untouched, and -1 is returned.
|
|
*/
|
|
int strbuf_normalize_path(struct strbuf *sb);
|
|
|
|
/**
|
|
* Strip whitespace from a buffer. If comment_line_char is non-NUL,
|
|
* then lines beginning with that character are considered comments,
|
|
* thus removed.
|
|
*/
|
|
void strbuf_stripspace(struct strbuf *buf, char comment_line_char);
|
|
|
|
static inline int strbuf_strip_suffix(struct strbuf *sb, const char *suffix)
|
|
{
|
|
if (strip_suffix_mem(sb->buf, &sb->len, suffix)) {
|
|
strbuf_setlen(sb, sb->len);
|
|
return 1;
|
|
} else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* Split str (of length slen) at the specified terminator character.
|
|
* Return a null-terminated array of pointers to strbuf objects
|
|
* holding the substrings. The substrings include the terminator,
|
|
* except for the last substring, which might be unterminated if the
|
|
* original string did not end with a terminator. If max is positive,
|
|
* then split the string into at most max substrings (with the last
|
|
* substring containing everything following the (max-1)th terminator
|
|
* character).
|
|
*
|
|
* The most generic form is `strbuf_split_buf`, which takes an arbitrary
|
|
* pointer/len buffer. The `_str` variant takes a NUL-terminated string,
|
|
* the `_max` variant takes a strbuf, and just `strbuf_split` is a convenience
|
|
* wrapper to drop the `max` parameter.
|
|
*
|
|
* For lighter-weight alternatives, see string_list_split() and
|
|
* string_list_split_in_place().
|
|
*/
|
|
struct strbuf **strbuf_split_buf(const char *str, size_t len,
|
|
int terminator, int max);
|
|
|
|
static inline struct strbuf **strbuf_split_str(const char *str,
|
|
int terminator, int max)
|
|
{
|
|
return strbuf_split_buf(str, strlen(str), terminator, max);
|
|
}
|
|
|
|
static inline struct strbuf **strbuf_split_max(const struct strbuf *sb,
|
|
int terminator, int max)
|
|
{
|
|
return strbuf_split_buf(sb->buf, sb->len, terminator, max);
|
|
}
|
|
|
|
static inline struct strbuf **strbuf_split(const struct strbuf *sb,
|
|
int terminator)
|
|
{
|
|
return strbuf_split_max(sb, terminator, 0);
|
|
}
|
|
|
|
/*
|
|
* Adds all strings of a string list to the strbuf, separated by the given
|
|
* separator. For example, if sep is
|
|
* ', '
|
|
* and slist contains
|
|
* ['element1', 'element2', ..., 'elementN'],
|
|
* then write:
|
|
* 'element1, element2, ..., elementN'
|
|
* to str. If only one element, just write "element1" to str.
|
|
*/
|
|
void strbuf_add_separated_string_list(struct strbuf *str,
|
|
const char *sep,
|
|
struct string_list *slist);
|
|
|
|
/**
|
|
* Free a NULL-terminated list of strbufs (for example, the return
|
|
* values of the strbuf_split*() functions).
|
|
*/
|
|
void strbuf_list_free(struct strbuf **list);
|
|
|
|
/*
|
|
* Remove the filename from the provided path string. If the path
|
|
* contains a trailing separator, then the path is considered a directory
|
|
* and nothing is modified.
|
|
*
|
|
* Examples:
|
|
* - "/path/to/file" -> "/path/to/"
|
|
* - "/path/to/dir/" -> "/path/to/dir/"
|
|
*/
|
|
void strbuf_strip_file_from_path(struct strbuf *sb);
|
|
|
|
void strbuf_add_lines(struct strbuf *sb,
|
|
const char *prefix,
|
|
const char *buf,
|
|
size_t size);
|
|
|
|
/**
|
|
* Append s to sb, with the characters '<', '>', '&' and '"' converted
|
|
* into XML entities.
|
|
*/
|
|
void strbuf_addstr_xml_quoted(struct strbuf *sb,
|
|
const char *s);
|
|
|
|
/**
|
|
* "Complete" the contents of `sb` by ensuring that either it ends with the
|
|
* character `term`, or it is empty. This can be used, for example,
|
|
* to ensure that text ends with a newline, but without creating an empty
|
|
* blank line if there is no content in the first place.
|
|
*/
|
|
static inline void strbuf_complete(struct strbuf *sb, char term)
|
|
{
|
|
if (sb->len && sb->buf[sb->len - 1] != term)
|
|
strbuf_addch(sb, term);
|
|
}
|
|
|
|
static inline void strbuf_complete_line(struct strbuf *sb)
|
|
{
|
|
strbuf_complete(sb, '\n');
|
|
}
|
|
|
|
/*
|
|
* Copy "name" to "sb", expanding any special @-marks as handled by
|
|
* repo_interpret_branch_name(). The result is a non-qualified branch name
|
|
* (so "foo" or "origin/master" instead of "refs/heads/foo" or
|
|
* "refs/remotes/origin/master").
|
|
*
|
|
* Note that the resulting name may not be a syntactically valid refname.
|
|
*
|
|
* If "allowed" is non-zero, restrict the set of allowed expansions. See
|
|
* repo_interpret_branch_name() for details.
|
|
*/
|
|
void strbuf_branchname(struct strbuf *sb, const char *name,
|
|
unsigned allowed);
|
|
|
|
/*
|
|
* Like strbuf_branchname() above, but confirm that the result is
|
|
* syntactically valid to be used as a local branch name in refs/heads/.
|
|
*
|
|
* The return value is "0" if the result is valid, and "-1" otherwise.
|
|
*/
|
|
int strbuf_check_branch_ref(struct strbuf *sb, const char *name);
|
|
|
|
typedef int (*char_predicate)(char ch);
|
|
|
|
void strbuf_addstr_urlencode(struct strbuf *sb, const char *name,
|
|
char_predicate allow_unencoded_fn);
|
|
|
|
__attribute__((format (printf,1,2)))
|
|
int printf_ln(const char *fmt, ...);
|
|
__attribute__((format (printf,2,3)))
|
|
int fprintf_ln(FILE *fp, const char *fmt, ...);
|
|
|
|
char *xstrdup_tolower(const char *);
|
|
char *xstrdup_toupper(const char *);
|
|
|
|
/**
|
|
* Create a newly allocated string using printf format. You can do this easily
|
|
* with a strbuf, but this provides a shortcut to save a few lines.
|
|
*/
|
|
__attribute__((format (printf, 1, 0)))
|
|
char *xstrvfmt(const char *fmt, va_list ap);
|
|
__attribute__((format (printf, 1, 2)))
|
|
char *xstrfmt(const char *fmt, ...);
|
|
|
|
int starts_with(const char *str, const char *prefix);
|
|
int istarts_with(const char *str, const char *prefix);
|
|
|
|
/*
|
|
* If the string "str" is the same as the string in "prefix", then the "arg"
|
|
* parameter is set to the "def" parameter and 1 is returned.
|
|
* If the string "str" begins with the string found in "prefix" and then a
|
|
* "=" sign, then the "arg" parameter is set to "str + strlen(prefix) + 1"
|
|
* (i.e., to the point in the string right after the prefix and the "=" sign),
|
|
* and 1 is returned.
|
|
*
|
|
* Otherwise, return 0 and leave "arg" untouched.
|
|
*
|
|
* When we accept both a "--key" and a "--key=<val>" option, this function
|
|
* can be used instead of !strcmp(arg, "--key") and then
|
|
* skip_prefix(arg, "--key=", &arg) to parse such an option.
|
|
*/
|
|
int skip_to_optional_arg_default(const char *str, const char *prefix,
|
|
const char **arg, const char *def);
|
|
|
|
static inline int skip_to_optional_arg(const char *str, const char *prefix,
|
|
const char **arg)
|
|
{
|
|
return skip_to_optional_arg_default(str, prefix, arg, "");
|
|
}
|
|
|
|
static inline int ends_with(const char *str, const char *suffix)
|
|
{
|
|
size_t len;
|
|
return strip_suffix(str, suffix, &len);
|
|
}
|
|
|
|
#endif /* STRBUF_H */
|