Wed, 14 Aug 2013 18:01:37 +0200
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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2013 Olaf Wintermann. All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include <stdlib.h> |
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30 | #include <string.h> |
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31 | #include <stdarg.h> |
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32 | |
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33 | #include "string.h" |
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34 | #include "allocator.h" |
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35 | |
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36 | sstr_t sstr(char *cstring) { |
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37 | sstr_t string; |
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38 | string.ptr = cstring; |
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39 | string.length = strlen(cstring); |
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40 | return string; |
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41 | } |
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42 | |
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43 | sstr_t sstrn(char *cstring, size_t length) { |
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44 | sstr_t string; |
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45 | string.ptr = cstring; |
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46 | string.length = length; |
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47 | return string; |
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48 | } |
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49 | |
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50 | size_t sstrnlen(size_t n, sstr_t s, ...) { |
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51 | va_list ap; |
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52 | size_t size = s.length; |
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53 | va_start(ap, s); |
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54 | |
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55 | for (size_t i = 1 ; i < n ; i++) { |
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56 | sstr_t str = va_arg(ap, sstr_t); |
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57 | size += str.length; |
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58 | } |
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59 | va_end(ap); |
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60 | |
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61 | return size; |
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62 | } |
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63 | |
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64 | sstr_t sstrncat(sstr_t s, size_t n, sstr_t c1, ...) { |
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65 | va_list ap; |
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66 | va_start(ap, c1); |
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67 | s.ptr[0] = 0; |
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68 | |
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69 | size_t len = s.length; |
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70 | size_t cplen = c1.length > len ? len : c1.length; |
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71 | char *ptr = s.ptr; |
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72 | |
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73 | memcpy(ptr, c1.ptr, cplen); |
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74 | len -= cplen; |
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75 | ptr += cplen; |
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76 | for (size_t i = 1 ; i < n ; i++) { |
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77 | sstr_t str = va_arg (ap, sstr_t); |
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78 | cplen = str.length > len ? len : str.length; |
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79 | if(cplen <= 0) { |
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80 | va_end(ap); |
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81 | return s; |
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82 | } |
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83 | memcpy(ptr, str.ptr, cplen); |
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84 | len -= cplen; |
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85 | ptr += cplen; |
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86 | } |
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87 | va_end(ap); |
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88 | s.length = ptr - s.ptr; |
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89 | |
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90 | return s; |
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91 | } |
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92 | |
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93 | sstr_t sstrsubs(sstr_t s, size_t start) { |
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94 | return sstrsubsl (s, start, s.length-start); |
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95 | } |
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96 | |
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97 | sstr_t sstrsubsl(sstr_t s, size_t start, size_t length) { |
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98 | sstr_t new_sstr; |
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99 | if (start >= s.length) { |
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100 | return s; |
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101 | } |
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102 | if (length > s.length-start) { |
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103 | length = s.length-start; |
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104 | } |
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105 | new_sstr.ptr = &s.ptr[start]; |
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106 | new_sstr.length = length; |
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107 | return new_sstr; |
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108 | } |
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109 | |
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110 | sstr_t sstrchr(sstr_t s, int c) { |
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111 | for(size_t i=0;i<s.length;i++) { |
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112 | if(s.ptr[i] == c) { |
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113 | return sstrsubs(s, i); |
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114 | } |
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115 | } |
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116 | sstr_t n; |
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117 | n.ptr = NULL; |
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118 | n.length = 0; |
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119 | return n; |
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120 | } |
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121 | |
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122 | sstr_t* sstrsplit(sstr_t s, sstr_t d, size_t *n) { |
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123 | return sstrsplit_a(ucx_default_allocator(), s, d, n); |
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124 | } |
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125 | |
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126 | sstr_t* sstrsplit_a(UcxAllocator *allocator, sstr_t s, sstr_t d, size_t *n) { |
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127 | if (s.length == 0 || d.length == 0) { |
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128 | *n = -1; |
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129 | return NULL; |
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130 | } |
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131 | |
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132 | sstr_t* result; |
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133 | size_t nmax = *n; |
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134 | *n = 1; |
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135 | |
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136 | /* special case: exact match - no processing needed */ |
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137 | if (sstrcmp(s, d) == 0) { |
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138 | *n = 0; |
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139 | return NULL; |
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140 | } |
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141 | sstr_t sv = sstrdup(s); |
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142 | if (sv.length == 0) { |
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143 | *n = -2; |
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144 | return NULL; |
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145 | } |
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146 | |
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147 | for (size_t i = 0 ; i < s.length ; i++) { |
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148 | if (sv.ptr[i] == d.ptr[0]) { |
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149 | _Bool match = 1; |
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150 | for (size_t j = 1 ; j < d.length ; j++) { |
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151 | if (j+i < s.length) { |
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152 | match &= (sv.ptr[i+j] == d.ptr[j]); |
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153 | } else { |
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154 | match = 0; |
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155 | break; |
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156 | } |
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157 | } |
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158 | if (match) { |
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159 | (*n)++; |
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160 | for (size_t j = 0 ; j < d.length ; j++) { |
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161 | sv.ptr[i+j] = 0; |
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162 | } |
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163 | i += d.length; |
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164 | } |
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165 | } |
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166 | if ((*n) == nmax) break; |
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167 | } |
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168 | result = (sstr_t*) allocator->malloc(allocator->pool, sizeof(sstr_t)*(*n)); |
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169 | |
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170 | if (result) { |
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171 | char *pptr = sv.ptr; |
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172 | for (size_t i = 0 ; i < *n ; i++) { |
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173 | size_t l = strlen(pptr); |
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174 | char* ptr = (char*) allocator->malloc(allocator->pool, l + 1); |
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175 | memcpy(ptr, pptr, l); |
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176 | ptr[l] = 0; |
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177 | |
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178 | result[i] = sstrn(ptr, l); |
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179 | pptr += l + d.length; |
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180 | } |
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181 | } else { |
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182 | *n = -2; |
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183 | } |
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184 | |
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185 | free(sv.ptr); |
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186 | |
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187 | return result; |
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188 | } |
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189 | |
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190 | int sstrcmp(sstr_t s1, sstr_t s2) { |
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191 | if (s1.length == s2.length) { |
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192 | return memcmp(s1.ptr, s2.ptr, s1.length); |
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193 | } else if (s1.length > s2.length) { |
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194 | return 1; |
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195 | } else { |
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196 | return -1; |
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197 | } |
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198 | } |
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199 | |
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200 | sstr_t sstrdup(sstr_t s) { |
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201 | return sstrdup_a(ucx_default_allocator(), s); |
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202 | } |
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203 | |
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204 | sstr_t sstrdup_a(UcxAllocator *allocator, sstr_t s) { |
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205 | sstr_t newstring; |
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206 | newstring.ptr = (char*)allocator->malloc(allocator->pool, s.length + 1); |
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207 | if (newstring.ptr) { |
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208 | newstring.length = s.length; |
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209 | newstring.ptr[newstring.length] = 0; |
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210 | |
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211 | memcpy(newstring.ptr, s.ptr, s.length); |
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212 | } else { |
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213 | newstring.length = 0; |
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214 | } |
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215 | |
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216 | return newstring; |
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217 | } |
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218 | |
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219 | sstr_t sstrtrim(sstr_t string) { |
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220 | sstr_t newstr = string; |
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221 | if (string.length == 0) { |
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222 | return newstr; |
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223 | } |
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224 | |
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225 | size_t i; |
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226 | for(i=0;i<string.length;i++) { |
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227 | char c = string.ptr[i]; |
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228 | if(c > 32) { |
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229 | break; |
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230 | } |
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231 | } |
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232 | newstr.ptr = &string.ptr[i]; |
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233 | newstr.length = string.length - i; |
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234 | |
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235 | if(newstr.length == 0) { |
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236 | return newstr; |
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237 | } |
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238 | |
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239 | i = newstr.length - 1; |
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240 | for(;;) { |
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241 | char c = newstr.ptr[i]; |
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242 | if(c > 32) { |
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243 | break; |
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244 | } |
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245 | if(i > 0) { |
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246 | i--; |
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247 | } else { |
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248 | break; |
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249 | } |
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250 | } |
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new webdav api + repository and key configuration + aes encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
1
diff
changeset
|
251 | newstr.length = i + 1; |
88625853ae74
new webdav api + repository and key configuration + aes encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
1
diff
changeset
|
252 | |
88625853ae74
new webdav api + repository and key configuration + aes encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
1
diff
changeset
|
253 | return newstr; |
88625853ae74
new webdav api + repository and key configuration + aes encryption
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
1
diff
changeset
|
254 | } |