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Diffstat (limited to 'ext/standard/php_smart_str.h')
| -rw-r--r-- | ext/standard/php_smart_str.h | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/ext/standard/php_smart_str.h b/ext/standard/php_smart_str.h new file mode 100644 index 0000000..2fef1d0 --- /dev/null +++ b/ext/standard/php_smart_str.h @@ -0,0 +1,195 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2013 The PHP Group | + +----------------------------------------------------------------------+ + | This source file is subject to version 3.01 of the PHP license, | + | that is bundled with this package in the file LICENSE, and is | + | available through the world-wide-web at the following url: | + | http://www.php.net/license/3_01.txt | + | If you did not receive a copy of the PHP license and are unable to | + | obtain it through the world-wide-web, please send a note to | + | license@php.net so we can mail you a copy immediately. | + +----------------------------------------------------------------------+ + | Author: Sascha Schumann <sascha@schumann.cx> | + +----------------------------------------------------------------------+ + */ + +/* $Id$ */ + +#ifndef PHP_SMART_STR_H +#define PHP_SMART_STR_H + +#include "php_smart_str_public.h" + +#include <stdlib.h> +#ifndef SMART_STR_USE_REALLOC +#include <zend.h> +#endif + +#define smart_str_0(x) do { \ + if ((x)->c) { \ + (x)->c[(x)->len] = '\0'; \ + } \ +} while (0) + +#ifndef SMART_STR_PREALLOC +#define SMART_STR_PREALLOC 128 +#endif + +#ifndef SMART_STR_START_SIZE +#define SMART_STR_START_SIZE 78 +#endif + +#ifdef SMART_STR_USE_REALLOC +#define SMART_STR_REALLOC(a,b,c) realloc((a),(b)) +#else +#define SMART_STR_REALLOC(a,b,c) perealloc((a),(b),(c)) +#endif + +#define SMART_STR_DO_REALLOC(d, what) \ + (d)->c = SMART_STR_REALLOC((d)->c, (d)->a + 1, (what)) + +#define smart_str_alloc4(d, n, what, newlen) do { \ + if (!(d)->c) { \ + (d)->len = 0; \ + newlen = (n); \ + (d)->a = newlen < SMART_STR_START_SIZE \ + ? SMART_STR_START_SIZE \ + : newlen + SMART_STR_PREALLOC; \ + SMART_STR_DO_REALLOC(d, what); \ + } else { \ + newlen = (d)->len + (n); \ + if (newlen >= (d)->a) { \ + (d)->a = newlen + SMART_STR_PREALLOC; \ + SMART_STR_DO_REALLOC(d, what); \ + } \ + } \ +} while (0) + +#define smart_str_alloc(d, n, what) \ + smart_str_alloc4((d), (n), (what), newlen) + +/* wrapper */ + +#define smart_str_appends_ex(dest, src, what) \ + smart_str_appendl_ex((dest), (src), strlen(src), (what)) +#define smart_str_appends(dest, src) \ + smart_str_appendl((dest), (src), strlen(src)) + +#define smart_str_appendc(dest, c) \ + smart_str_appendc_ex((dest), (c), 0) +#define smart_str_free(s) \ + smart_str_free_ex((s), 0) +#define smart_str_appendl(dest, src, len) \ + smart_str_appendl_ex((dest), (src), (len), 0) +#define smart_str_append(dest, src) \ + smart_str_append_ex((dest), (src), 0) +#define smart_str_append_long(dest, val) \ + smart_str_append_long_ex((dest), (val), 0) +#define smart_str_append_off_t(dest, val) \ + smart_str_append_off_t_ex((dest), (val), 0) +#define smart_str_append_unsigned(dest, val) \ + smart_str_append_unsigned_ex((dest), (val), 0) + +#define smart_str_appendc_ex(dest, ch, what) do { \ + register size_t __nl; \ + smart_str_alloc4((dest), 1, (what), __nl); \ + (dest)->len = __nl; \ + ((unsigned char *) (dest)->c)[(dest)->len - 1] = (ch); \ +} while (0) + +#define smart_str_free_ex(s, what) do { \ + smart_str *__s = (smart_str *) (s); \ + if (__s->c) { \ + pefree(__s->c, what); \ + __s->c = NULL; \ + } \ + __s->a = __s->len = 0; \ +} while (0) + +#define smart_str_appendl_ex(dest, src, nlen, what) do { \ + register size_t __nl; \ + smart_str *__dest = (smart_str *) (dest); \ + \ + smart_str_alloc4(__dest, (nlen), (what), __nl); \ + memcpy(__dest->c + __dest->len, (src), (nlen)); \ + __dest->len = __nl; \ +} while (0) + +/* input: buf points to the END of the buffer */ +#define smart_str_print_unsigned4(buf, num, vartype, result) do { \ + char *__p = (buf); \ + vartype __num = (num); \ + *__p = '\0'; \ + do { \ + *--__p = (char) (__num % 10) + '0'; \ + __num /= 10; \ + } while (__num > 0); \ + result = __p; \ +} while (0) + +/* buf points to the END of the buffer */ +#define smart_str_print_long4(buf, num, vartype, result) do { \ + if (num < 0) { \ + /* this might cause problems when dealing with LONG_MIN \ + and machines which don't support long long. Works \ + flawlessly on 32bit x86 */ \ + smart_str_print_unsigned4((buf), -(num), vartype, (result)); \ + *--(result) = '-'; \ + } else { \ + smart_str_print_unsigned4((buf), (num), vartype, (result)); \ + } \ +} while (0) + +/* + * these could be replaced using a braced-group inside an expression + * for GCC compatible compilers, e.g. + * + * #define f(..) ({char *r;..;__r;}) + */ + +static inline char *smart_str_print_long(char *buf, long num) { + char *r; + smart_str_print_long4(buf, num, unsigned long, r); + return r; +} + +static inline char *smart_str_print_unsigned(char *buf, long num) { + char *r; + smart_str_print_unsigned4(buf, num, unsigned long, r); + return r; +} + +#define smart_str_append_generic_ex(dest, num, type, vartype, func) do { \ + char __b[32]; \ + char *__t; \ + smart_str_print##func##4 (__b + sizeof(__b) - 1, (num), vartype, __t); \ + smart_str_appendl_ex((dest), __t, __b + sizeof(__b) - 1 - __t, (type)); \ +} while (0) + +#define smart_str_append_unsigned_ex(dest, num, type) \ + smart_str_append_generic_ex((dest), (num), (type), unsigned long, _unsigned) + +#define smart_str_append_long_ex(dest, num, type) \ + smart_str_append_generic_ex((dest), (num), (type), unsigned long, _long) + +#define smart_str_append_off_t_ex(dest, num, type) \ + smart_str_append_generic_ex((dest), (num), (type), off_t, _long) + +#define smart_str_append_ex(dest, src, what) \ + smart_str_appendl_ex((dest), ((smart_str *)(src))->c, \ + ((smart_str *)(src))->len, (what)); + + +#define smart_str_setl(dest, src, nlen) do { \ + (dest)->len = (nlen); \ + (dest)->a = (nlen) + 1; \ + (dest)->c = (char *) (src); \ +} while (0) + +#define smart_str_sets(dest, src) \ + smart_str_setl((dest), (src), strlen(src)); + +#endif |