diff options
Diffstat (limited to 'src/util.h')
| -rw-r--r-- | src/util.h | 118 |
1 files changed, 103 insertions, 15 deletions
diff --git a/src/util.h b/src/util.h index c6851ac7e..c0f271997 100644 --- a/src/util.h +++ b/src/util.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2009-2012 the libgit2 contributors + * Copyright (C) the libgit2 contributors. All rights reserved. * * This file is part of libgit2, distributed under the GNU GPL v2 with * a Linking Exception. For full terms see the included COPYING file. @@ -13,6 +13,9 @@ #ifndef min # define min(a,b) ((a) < (b) ? (a) : (b)) #endif +#ifndef max +# define max(a,b) ((a) > (b) ? (a) : (b)) +#endif /* * Custom memory allocation wrappers @@ -42,25 +45,31 @@ GIT_INLINE(char *) git__strdup(const char *str) GIT_INLINE(char *) git__strndup(const char *str, size_t n) { - size_t length; + size_t length = 0; char *ptr; - length = strlen(str); - if (n < length) - length = n; + while (length < n && str[length]) + ++length; - ptr = (char*)malloc(length + 1); - if (!ptr) { - giterr_set_oom(); - return NULL; - } + ptr = (char*)git__malloc(length + 1); + + if (length) + memcpy(ptr, str, length); - memcpy(ptr, str, length); ptr[length] = '\0'; return ptr; } +/* NOTE: This doesn't do null or '\0' checking. Watch those boundaries! */ +GIT_INLINE(char *) git__substrdup(const char *start, size_t n) +{ + char *ptr = (char*)git__malloc(n+1); + memcpy(ptr, start, n); + ptr[n] = '\0'; + return ptr; +} + GIT_INLINE(void *) git__realloc(void *ptr, size_t size) { void *new_ptr = realloc(ptr, size); @@ -70,9 +79,21 @@ GIT_INLINE(void *) git__realloc(void *ptr, size_t size) #define git__free(ptr) free(ptr) +#define STRCMP_CASESELECT(IGNORE_CASE, STR1, STR2) \ + ((IGNORE_CASE) ? strcasecmp((STR1), (STR2)) : strcmp((STR1), (STR2))) + +#define CASESELECT(IGNORE_CASE, ICASE, CASE) \ + ((IGNORE_CASE) ? (ICASE) : (CASE)) + extern int git__prefixcmp(const char *str, const char *prefix); +extern int git__prefixcmp_icase(const char *str, const char *prefix); extern int git__suffixcmp(const char *str, const char *suffix); +GIT_INLINE(int) git__signum(int val) +{ + return ((val > 0) - (val < 0)); +} + extern int git__strtol32(int32_t *n, const char *buff, const char **end_buf, int base); extern int git__strtol64(int64_t *n, const char *buff, const char **end_buf, int base); @@ -94,6 +115,7 @@ GIT_INLINE(int) git__is_sizet(git_off_t p) #endif extern char *git__strtok(char **end, const char *sep); +extern char *git__strsep(char **end, const char *sep); extern void git__strntolower(char *str, size_t len); extern void git__strtolower(char *str); @@ -105,22 +127,64 @@ GIT_INLINE(const char *) git__next_line(const char *s) return s; } -extern void git__tsort(void **dst, size_t size, int (*cmp)(const void *, const void *)); +GIT_INLINE(const void *) git__memrchr(const void *s, int c, size_t n) +{ + const unsigned char *cp; + + if (n != 0) { + cp = (unsigned char *)s + n; + do { + if (*(--cp) == (unsigned char)c) + return cp; + } while (--n != 0); + } + + return NULL; +} + +typedef int (*git__tsort_cmp)(const void *a, const void *b); + +extern void git__tsort(void **dst, size_t size, git__tsort_cmp cmp); + +typedef int (*git__sort_r_cmp)(const void *a, const void *b, void *payload); + +extern void git__tsort_r( + void **dst, size_t size, git__sort_r_cmp cmp, void *payload); + +extern void git__qsort_r( + void *els, size_t nel, size_t elsize, git__sort_r_cmp cmp, void *payload); + +extern void git__insertsort_r( + void *els, size_t nel, size_t elsize, void *swapel, + git__sort_r_cmp cmp, void *payload); /** * @param position If non-NULL, this will be set to the position where the * element is or would be inserted if not found. - * @return pos (>=0) if found or -1 if not found + * @return 0 if found; GIT_ENOTFOUND if not found */ extern int git__bsearch( void **array, size_t array_len, const void *key, - int (*compare)(const void *, const void *), + int (*compare)(const void *key, const void *element), + size_t *position); + +extern int git__bsearch_r( + void **array, + size_t array_len, + const void *key, + int (*compare_r)(const void *key, const void *element, void *payload), + void *payload, size_t *position); extern int git__strcmp_cb(const void *a, const void *b); +extern int git__strcmp(const char *a, const char *b); +extern int git__strcasecmp(const char *a, const char *b); +extern int git__strncmp(const char *a, const char *b, size_t sz); +extern int git__strncasecmp(const char *a, const char *b, size_t sz); + typedef struct { short refcount; void *owner; @@ -204,9 +268,14 @@ GIT_INLINE(bool) git__isalpha(int c) return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z')); } +GIT_INLINE(bool) git__isdigit(int c) +{ + return (c >= '0' && c <= '9'); +} + GIT_INLINE(bool) git__isspace(int c) { - return (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r' || c == '\v'); + return (c == ' ' || c == '\t' || c == '\n' || c == '\f' || c == '\r' || c == '\v' || c == 0x85 /* Unicode CR+LF */); } GIT_INLINE(bool) git__iswildcard(int c) @@ -223,4 +292,23 @@ GIT_INLINE(bool) git__iswildcard(int c) */ extern int git__parse_bool(int *out, const char *value); +/* + * Parse a string into a value as a git_time_t. + * + * Sample valid input: + * - "yesterday" + * - "July 17, 2003" + * - "2003-7-17 08:23" + */ +int git__date_parse(git_time_t *out, const char *date); + +/* + * Unescapes a string in-place. + * + * Edge cases behavior: + * - "jackie\" -> "jacky\" + * - "chan\\" -> "chan\" + */ +extern size_t git__unescape(char *str); + #endif /* INCLUDE_util_h__ */ |