Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pj/string.h> |
| 21 | #include <pj/assert.h> |
| 22 | #include <pj/pool.h> |
| 23 | #include <pj/ctype.h> |
| 24 | #include <pj/rand.h> |
| 25 | #include <pj/os.h> |
| 26 | |
| 27 | #if PJ_FUNCTIONS_ARE_INLINED==0 |
| 28 | # include <pj/string_i.h> |
| 29 | #endif |
| 30 | |
| 31 | |
| 32 | PJ_DEF(char*) pj_strstr(const pj_str_t *str, const pj_str_t *substr) |
| 33 | { |
| 34 | const char *s, *ends; |
| 35 | |
| 36 | /* Special case when substr is zero */ |
| 37 | if (substr->slen == 0) { |
| 38 | return (char*)str->ptr; |
| 39 | } |
| 40 | |
| 41 | s = str->ptr; |
| 42 | ends = str->ptr + str->slen - substr->slen; |
| 43 | for (; s<=ends; ++s) { |
| 44 | if (pj_ansi_strncmp(s, substr->ptr, substr->slen)==0) |
| 45 | return (char*)s; |
| 46 | } |
| 47 | return NULL; |
| 48 | } |
| 49 | |
| 50 | |
| 51 | PJ_DEF(char*) pj_stristr(const pj_str_t *str, const pj_str_t *substr) |
| 52 | { |
| 53 | const char *s, *ends; |
| 54 | |
| 55 | /* Special case when substr is zero */ |
| 56 | if (substr->slen == 0) { |
| 57 | return (char*)str->ptr; |
| 58 | } |
| 59 | |
| 60 | s = str->ptr; |
| 61 | ends = str->ptr + str->slen - substr->slen; |
| 62 | for (; s<=ends; ++s) { |
| 63 | if (pj_ansi_strnicmp(s, substr->ptr, substr->slen)==0) |
| 64 | return (char*)s; |
| 65 | } |
| 66 | return NULL; |
| 67 | } |
| 68 | |
| 69 | |
| 70 | PJ_DEF(pj_str_t*) pj_strltrim( pj_str_t *str ) |
| 71 | { |
| 72 | char *end = str->ptr + str->slen; |
| 73 | register char *p = str->ptr; |
| 74 | while (p < end && pj_isspace(*p)) |
| 75 | ++p; |
| 76 | str->slen -= (p - str->ptr); |
| 77 | str->ptr = p; |
| 78 | return str; |
| 79 | } |
| 80 | |
| 81 | PJ_DEF(pj_str_t*) pj_strrtrim( pj_str_t *str ) |
| 82 | { |
| 83 | char *end = str->ptr + str->slen; |
| 84 | register char *p = end - 1; |
| 85 | while (p >= str->ptr && pj_isspace(*p)) |
| 86 | --p; |
| 87 | str->slen -= ((end - p) - 1); |
| 88 | return str; |
| 89 | } |
| 90 | |
| 91 | PJ_DEF(char*) pj_create_random_string(char *str, pj_size_t len) |
| 92 | { |
| 93 | unsigned i; |
| 94 | char *p = str; |
| 95 | |
| 96 | PJ_CHECK_STACK(); |
| 97 | |
| 98 | for (i=0; i<len/8; ++i) { |
| 99 | pj_uint32_t val = pj_rand(); |
| 100 | pj_val_to_hex_digit( (val & 0xFF000000) >> 24, p+0 ); |
| 101 | pj_val_to_hex_digit( (val & 0x00FF0000) >> 16, p+2 ); |
| 102 | pj_val_to_hex_digit( (val & 0x0000FF00) >> 8, p+4 ); |
| 103 | pj_val_to_hex_digit( (val & 0x000000FF) >> 0, p+6 ); |
| 104 | p += 8; |
| 105 | } |
| 106 | for (i=i * 8; i<len; ++i) { |
| 107 | *p++ = pj_hex_digits[ pj_rand() & 0x0F ]; |
| 108 | } |
| 109 | return str; |
| 110 | } |
| 111 | |
| 112 | PJ_DEF(long) pj_strtol(const pj_str_t *str) |
| 113 | { |
| 114 | PJ_CHECK_STACK(); |
| 115 | |
| 116 | if (str->slen > 0 && (str->ptr[0] == '+' || str->ptr[0] == '-')) { |
| 117 | pj_str_t s; |
| 118 | |
| 119 | s.ptr = str->ptr + 1; |
| 120 | s.slen = str->slen - 1; |
| 121 | return (str->ptr[0] == '-'? -(long)pj_strtoul(&s) : pj_strtoul(&s)); |
| 122 | } else |
| 123 | return pj_strtoul(str); |
| 124 | } |
| 125 | |
| 126 | PJ_DEF(unsigned long) pj_strtoul(const pj_str_t *str) |
| 127 | { |
| 128 | unsigned long value; |
| 129 | unsigned i; |
| 130 | |
| 131 | PJ_CHECK_STACK(); |
| 132 | |
| 133 | value = 0; |
| 134 | for (i=0; i<(unsigned)str->slen; ++i) { |
| 135 | if (!pj_isdigit(str->ptr[i])) |
| 136 | break; |
| 137 | value = value * 10 + (str->ptr[i] - '0'); |
| 138 | } |
| 139 | return value; |
| 140 | } |
| 141 | |
| 142 | PJ_DEF(unsigned long) pj_strtoul2(const pj_str_t *str, pj_str_t *endptr, |
| 143 | unsigned base) |
| 144 | { |
| 145 | unsigned long value; |
| 146 | unsigned i; |
| 147 | |
| 148 | PJ_CHECK_STACK(); |
| 149 | |
| 150 | value = 0; |
| 151 | if (base <= 10) { |
| 152 | for (i=0; i<(unsigned)str->slen; ++i) { |
| 153 | unsigned c = (str->ptr[i] - '0'); |
| 154 | if (c >= base) |
| 155 | break; |
| 156 | value = value * base + c; |
| 157 | } |
| 158 | } else if (base == 16) { |
| 159 | for (i=0; i<(unsigned)str->slen; ++i) { |
| 160 | if (!pj_isxdigit(str->ptr[i])) |
| 161 | break; |
| 162 | value = value * 16 + pj_hex_digit_to_val(str->ptr[i]); |
| 163 | } |
| 164 | } else { |
| 165 | pj_assert(!"Unsupported base"); |
| 166 | i = 0; |
| 167 | value = 0xFFFFFFFFUL; |
| 168 | } |
| 169 | |
| 170 | if (endptr) { |
| 171 | endptr->ptr = str->ptr + i; |
| 172 | endptr->slen = str->slen - i; |
| 173 | } |
| 174 | |
| 175 | return value; |
| 176 | } |
| 177 | |
| 178 | PJ_DEF(int) pj_utoa(unsigned long val, char *buf) |
| 179 | { |
| 180 | return pj_utoa_pad(val, buf, 0, 0); |
| 181 | } |
| 182 | |
| 183 | PJ_DEF(int) pj_utoa_pad( unsigned long val, char *buf, int min_dig, int pad) |
| 184 | { |
| 185 | char *p; |
| 186 | int len; |
| 187 | |
| 188 | PJ_CHECK_STACK(); |
| 189 | |
| 190 | p = buf; |
| 191 | do { |
| 192 | unsigned long digval = (unsigned long) (val % 10); |
| 193 | val /= 10; |
| 194 | *p++ = (char) (digval + '0'); |
| 195 | } while (val > 0); |
| 196 | |
| 197 | len = (int)(p-buf); |
| 198 | while (len < min_dig) { |
| 199 | *p++ = (char)pad; |
| 200 | ++len; |
| 201 | } |
| 202 | *p-- = '\0'; |
| 203 | |
| 204 | do { |
| 205 | char temp = *p; |
| 206 | *p = *buf; |
| 207 | *buf = temp; |
| 208 | --p; |
| 209 | ++buf; |
| 210 | } while (buf < p); |
| 211 | |
| 212 | return len; |
| 213 | } |
| 214 | |
| 215 | |