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phpstr.h
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/* $Id: phpstr.h 229282 2007-02-07 15:31:50Z mike $ */ #ifndef _PHPSTR_H_ #define _PHPSTR_H_ #ifndef PHPSTR_DEFAULT_SIZE # define PHPSTR_DEFAULT_SIZE 256 #endif #define PHPSTR_NOMEM ((size_t) -1) #ifndef STR_FREE # define STR_FREE(STR) \ { \ if (STR) { \ efree(STR); \ } \ } #endif #ifndef STR_SET # define STR_SET(STR, SET) \ { \ STR_FREE(STR); \ STR = SET; \ } #endif #ifndef TSRMLS_D # define TSRMLS_D # define TSRMLS_DC # define TSRMLS_CC # define TSRMLS_C #endif #ifdef PHP_ATTRIBUTE_FORMAT # define PHPSTR_ATTRIBUTE_FORMAT(f, a, b) PHP_ATTRIBUTE_FORMAT(f, a, b) #else # define PHPSTR_ATTRIBUTE_FORMAT(f, a, b) #endif #ifndef pemalloc # define pemalloc(s,p) malloc(s) # define pefree(x,p) free(x) # define perealloc(x,s,p) realloc(x,s) # define perealloc_recoverable perealloc # define ecalloc calloc static inline void *estrndup(void *p, size_t s) { char *r = (char *) malloc(s+1); if (r) memcpy((void *) r, p, s), r[s] = '\0'; return (void *) r; } #endif #if defined(PHP_WIN32) # if defined(PHPSTR_EXPORTS) # define PHPSTR_API __declspec(dllexport) # elif defined(COMPILE_DL_PHPSTR) # define PHPSTR_API __declspec(dllimport) # else # define PHPSTR_API # endif #else # define PHPSTR_API #endif #define PHPSTR(p) ((phpstr *) (p)) #define PHPSTR_VAL(p) (PHPSTR(p))->data #define PHPSTR_LEN(p) (PHPSTR(p))->used #define FREE_PHPSTR_PTR(STR) pefree(STR, STR->pmem) #define FREE_PHPSTR_VAL(STR) phpstr_dtor(STR) #define FREE_PHPSTR_ALL(STR) phpstr_free(&(STR)) #define FREE_PHPSTR(free, STR) \ switch (free) \ { \ case PHPSTR_FREE_NOT: break; \ case PHPSTR_FREE_PTR: pefree(STR, STR->pmem); break; \ case PHPSTR_FREE_VAL: phpstr_dtor(STR); break; \ case PHPSTR_FREE_ALL: \ { \ phpstr *PTR = (STR); \ phpstr_free(&PTR); \ } \ break; \ default: break; \ } #define RETURN_PHPSTR_PTR(STR) RETURN_PHPSTR((STR), PHPSTR_FREE_PTR, 0) #define RETURN_PHPSTR_VAL(STR) RETURN_PHPSTR((STR), PHPSTR_FREE_NOT, 0) #define RETURN_PHPSTR_DUP(STR) RETURN_PHPSTR((STR), PHPSTR_FREE_NOT, 1) #define RETVAL_PHPSTR_PTR(STR) RETVAL_PHPSTR((STR), PHPSTR_FREE_PTR, 0) #define RETVAL_PHPSTR_VAL(STR) RETVAL_PHPSTR((STR), PHPSTR_FREE_NOT, 0) #define RETVAL_PHPSTR_DUP(STR) RETVAL_PHPSTR((STR), PHPSTR_FREE_NOT, 1) /* RETURN_PHPSTR(buf, PHPSTR_FREE_PTR, 0) */ #define RETURN_PHPSTR(STR, free, dup) \ RETVAL_PHPSTR((STR), (free), (dup)); \ return; #define RETVAL_PHPSTR(STR, free, dup) \ phpstr_fix(STR); \ RETVAL_STRINGL((STR)->data, (STR)->used, (dup)); \ FREE_PHPSTR((free), (STR)); typedef struct _phpstr_t { char *data; size_t used; size_t free; size_t size; unsigned pmem:1; unsigned reserved:31; } phpstr; typedef enum _phpstr_free_t { PHPSTR_FREE_NOT = 0, PHPSTR_FREE_PTR, /* pefree() */ PHPSTR_FREE_VAL, /* phpstr_dtor() */ PHPSTR_FREE_ALL /* phpstr_free() */ } phpstr_free_t; #define PHPSTR_ALL_FREE(STR) PHPSTR_FREE_ALL,(STR) #define PHPSTR_PTR_FREE(STR) PHPSTR_FREE_PTR,(STR) #define PHPSTR_VAL_FREE(STR) PHPSTR_FREE_VAL,(STR) #define PHPSTR_NOT_FREE(STR) PHPSTR_FREE_NOT,(STR) #define PHPSTR_INIT_PREALLOC 0x01 #define PHPSTR_INIT_PERSISTENT 0x02 /* create a new phpstr */ #define phpstr_new() phpstr_init(NULL) #define phpstr_init(b) phpstr_init_ex(b, PHPSTR_DEFAULT_SIZE, 0) #define phpstr_clone(phpstr_pointer) phpstr_init_ex(NULL, (phpstr_pointer)->size, (phpstr_pointer)->pmem ? PHPSTR_INIT_PERSISTENT:0) PHPSTR_API phpstr *phpstr_init_ex(phpstr *buf, size_t chunk_size, int flags); /* create a phpstr from a zval or c-string */ #define phpstr_from_zval(z) phpstr_from_string(Z_STRVAL(z), Z_STRLEN(z)) #define phpstr_from_zval_ex(b, z) phpstr_from_string_ex(b, Z_STRVAL(z), Z_STRLEN(z)) #define phpstr_from_string(s, l) phpstr_from_string_ex(NULL, (s), (l)) PHPSTR_API phpstr *phpstr_from_string_ex(phpstr *buf, const char *string, size_t length); /* usually only called from within the internal functions */ #define phpstr_resize(b, s) phpstr_resize_ex((b), (s), 0, 0) PHPSTR_API size_t phpstr_resize_ex(phpstr *buf, size_t len, size_t override_size, int allow_error); /* shrink memory chunk to actually used size (+1) */ PHPSTR_API size_t phpstr_shrink(phpstr *buf); /* append data to the phpstr */ #define phpstr_appends(b, a) phpstr_append((b), (a), sizeof(a)-1) #define phpstr_appendl(b, a) phpstr_append((b), (a), strlen(a)) PHPSTR_API size_t phpstr_append(phpstr *buf, const char *append, size_t append_len); PHPSTR_API size_t phpstr_appendf(phpstr *buf, const char *format, ...) PHPSTR_ATTRIBUTE_FORMAT(printf, 2, 3); /* insert data at a specific position of the phpstr */ #define phpstr_inserts(b, i, o) phpstr_insert((b), (i), sizeof(i)-1, (o)) #define phpstr_insertl(b, i, o) phpstr_insert((b), (i), strlen(i), (o)) PHPSTR_API size_t phpstr_insert(phpstr *buf, const char *insert, size_t insert_len, size_t offset); PHPSTR_API size_t phpstr_insertf(phpstr *buf, size_t offset, const char *format, ...) PHPSTR_ATTRIBUTE_FORMAT(printf, 3, 4); /* prepend data */ #define phpstr_prepends(b, p) phpstr_prepend((b), (p), sizeof(p)-1) #define phpstr_prependl(b, p) phpstr_prepend((b), (p), strlen(p)) PHPSTR_API size_t phpstr_prepend(phpstr *buf, const char *prepend, size_t prepend_len); PHPSTR_API size_t phpstr_prependf(phpstr *buf, const char *format, ...) PHPSTR_ATTRIBUTE_FORMAT(printf, 2, 3); /* get a zero-terminated string */ PHPSTR_API char *phpstr_data(const phpstr *buf, char **into, size_t *len); /* get a part of the phpstr */ #define phpstr_mid(b, o, l) phpstr_sub((b), (o), (l)) #define phpstr_left(b, l) phpstr_sub((b), 0, (l)) PHPSTR_API phpstr *phpstr_right(const phpstr *buf, size_t length); PHPSTR_API phpstr *phpstr_sub(const phpstr *buf, size_t offset, size_t len); /* remove a substring */ PHPSTR_API size_t phpstr_cut(phpstr *buf, size_t offset, size_t length); /* get a complete phpstr duplicate */ PHPSTR_API phpstr *phpstr_dup(const phpstr *buf); /* merge several phpstr objects use like: phpstr *final = phpstr_merge(3, PHPSTR_NOT_FREE(&keep), PHPSTR_ALL_FREE(middle_ptr), PHPSTR_VAL_FREE(&local); */ PHPSTR_API phpstr *phpstr_merge(unsigned argc, ...); PHPSTR_API phpstr *phpstr_merge_ex(phpstr *buf, unsigned argc, ...); PHPSTR_API phpstr *phpstr_merge_va(phpstr *buf, unsigned argc, va_list argv); /* sets a trailing NUL byte */ PHPSTR_API phpstr *phpstr_fix(phpstr *buf); /* memcmp for phpstr objects */ PHPSTR_API int phpstr_cmp(phpstr *left, phpstr *right); /* reset phpstr object */ PHPSTR_API void phpstr_reset(phpstr *buf); /* free a phpstr objects contents */ PHPSTR_API void phpstr_dtor(phpstr *buf); /* free a phpstr object completely */ PHPSTR_API void phpstr_free(phpstr **buf); /* stores data in a phpstr until it reaches chunk_size */ PHPSTR_API size_t phpstr_chunk_buffer(phpstr **s, const char *data, size_t data_len, char **chunk, size_t chunk_size); typedef void (*phpstr_passthru_func)(void *opaque, const char *, size_t TSRMLS_DC); /* wrapper around phpstr_chunk_buffer, which passes available chunks to passthru() */ PHPSTR_API void phpstr_chunked_output(phpstr **s, const char *data, size_t data_len, size_t chunk_size, phpstr_passthru_func passthru, void *opaque TSRMLS_DC); #endif /* * Local variables: * tab-width: 4 * c-basic-offset: 4 * End: * vim600: sw=4 ts=4 fdm=marker * vim<600: sw=4 ts=4 */