ucx/string.c

Sat, 05 Dec 2020 10:32:49 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 05 Dec 2020 10:32:49 +0100
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Motif: enable xft text rendering by default

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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 2017 Mike Becker, 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 "ucx/string.h"
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30
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31 #include "ucx/allocator.h"
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32
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33 #include <stdlib.h>
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34 #include <string.h>
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35 #include <stdarg.h>
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36 #include <stdint.h>
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37 #include <ctype.h>
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38
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39 sstr_t sstr(char *cstring) {
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40 sstr_t string;
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41 string.ptr = cstring;
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42 string.length = strlen(cstring);
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43 return string;
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44 }
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45
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46 sstr_t sstrn(char *cstring, size_t length) {
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47 sstr_t string;
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48 string.ptr = cstring;
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49 string.length = length;
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50 return string;
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51 }
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52
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53 scstr_t scstr(const char *cstring) {
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54 scstr_t string;
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55 string.ptr = cstring;
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56 string.length = strlen(cstring);
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57 return string;
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58 }
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59
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60 scstr_t scstrn(const char *cstring, size_t length) {
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61 scstr_t string;
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62 string.ptr = cstring;
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63 string.length = length;
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64 return string;
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65 }
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66
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67
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68 size_t scstrnlen(size_t n, ...) {
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69 va_list ap;
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70 va_start(ap, n);
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71
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72 size_t size = 0;
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73
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74 for (size_t i = 0 ; i < n ; i++) {
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75 scstr_t str = va_arg(ap, scstr_t);
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76 if(SIZE_MAX - str.length < size) {
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77 size = SIZE_MAX;
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78 break;
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79 }
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80 size += str.length;
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81 }
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82 va_end(ap);
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83
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84 return size;
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85 }
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86
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87 static sstr_t sstrvcat_a(
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88 UcxAllocator *a,
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89 size_t count,
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90 scstr_t s1,
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91 va_list ap) {
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92 sstr_t str;
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93 str.ptr = NULL;
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94 str.length = 0;
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95 if(count < 2) {
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96 return str;
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97 }
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98
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99 scstr_t s2 = va_arg (ap, scstr_t);
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100
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101 if(((size_t)-1) - s1.length < s2.length) {
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102 return str;
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103 }
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104
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105 scstr_t *strings = (scstr_t*) calloc(count, sizeof(scstr_t));
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106 if(!strings) {
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107 return str;
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108 }
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109
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110 // get all args and overall length
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111 strings[0] = s1;
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112 strings[1] = s2;
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113 size_t slen = s1.length + s2.length;
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114 int error = 0;
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115 for (size_t i=2;i<count;i++) {
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116 scstr_t s = va_arg (ap, scstr_t);
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117 strings[i] = s;
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118 if(((size_t)-1) - s.length < slen) {
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119 error = 1;
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120 break;
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121 }
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122 slen += s.length;
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123 }
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124 if(error) {
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125 free(strings);
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126 return str;
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127 }
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128
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129 // create new string
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130 str.ptr = (char*) almalloc(a, slen + 1);
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131 str.length = slen;
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132 if(!str.ptr) {
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133 free(strings);
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134 str.length = 0;
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135 return str;
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136 }
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137
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138 // concatenate strings
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139 size_t pos = 0;
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140 for (size_t i=0;i<count;i++) {
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141 scstr_t s = strings[i];
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142 memcpy(str.ptr + pos, s.ptr, s.length);
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143 pos += s.length;
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144 }
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145
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146 str.ptr[str.length] = '\0';
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147
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148 free(strings);
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149
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150 return str;
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151 }
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152
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153 sstr_t scstrcat(size_t count, scstr_t s1, ...) {
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154 va_list ap;
157
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155 va_start(ap, s1);
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156 sstr_t s = sstrvcat_a(ucx_default_allocator(), count, s1, ap);
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157 va_end(ap);
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158 return s;
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159 }
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160
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161 sstr_t scstrcat_a(UcxAllocator *a, size_t count, scstr_t s1, ...) {
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162 va_list ap;
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163 va_start(ap, s1);
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164 sstr_t s = sstrvcat_a(a, count, s1, ap);
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165 va_end(ap);
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166 return s;
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167 }
0
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168
157
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169 static int ucx_substring(
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170 size_t str_length,
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171 size_t start,
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172 size_t length,
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173 size_t *newlen,
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174 size_t *newpos)
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175 {
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176 *newlen = 0;
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177 *newpos = 0;
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178
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179 if(start > str_length) {
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180 return 0;
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181 }
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182
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183 if(length > str_length - start) {
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184 length = str_length - start;
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185 }
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186 *newlen = length;
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187 *newpos = start;
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188 return 1;
0
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189 }
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190
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191 sstr_t sstrsubs(sstr_t s, size_t start) {
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192 return sstrsubsl (s, start, s.length-start);
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193 }
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194
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195 sstr_t sstrsubsl(sstr_t s, size_t start, size_t length) {
157
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196 size_t pos;
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197 sstr_t ret = { NULL, 0 };
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198 if(ucx_substring(s.length, start, length, &ret.length, &pos)) {
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199 ret.ptr = s.ptr + pos;
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200 }
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201 return ret;
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202 }
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203
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204 scstr_t scstrsubs(scstr_t string, size_t start) {
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205 return scstrsubsl(string, start, string.length-start);
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206 }
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207
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208 scstr_t scstrsubsl(scstr_t s, size_t start, size_t length) {
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209 size_t pos;
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210 scstr_t ret = { NULL, 0 };
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211 if(ucx_substring(s.length, start, length, &ret.length, &pos)) {
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212 ret.ptr = s.ptr + pos;
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213 }
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214 return ret;
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215 }
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216
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217
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218 static int ucx_strchr(const char *str, size_t length, int chr, size_t *pos) {
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219 for(size_t i=0;i<length;i++) {
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220 if(str[i] == chr) {
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221 *pos = i;
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222 return 1;
124
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223 }
0
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224 }
157
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225 return 0;
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226 }
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227
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228 static int ucx_strrchr(const char *str, size_t length, int chr, size_t *pos) {
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229 if(length > 0) {
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230 for(size_t i=length ; i>0 ; i--) {
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231 if(str[i-1] == chr) {
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232 *pos = i-1;
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233 return 1;
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234 }
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235 }
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236 }
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237 return 0;
0
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238 }
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239
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240 sstr_t sstrchr(sstr_t s, int c) {
157
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241 size_t pos = 0;
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242 if(ucx_strchr(s.ptr, s.length, c, &pos)) {
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243 return sstrsubs(s, pos);
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244 }
157
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245 return sstrn(NULL, 0);
0
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246 }
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247
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248 sstr_t sstrrchr(sstr_t s, int c) {
157
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249 size_t pos = 0;
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250 if(ucx_strrchr(s.ptr, s.length, c, &pos)) {
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251 return sstrsubs(s, pos);
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252 }
157
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253 return sstrn(NULL, 0);
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254 }
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255
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256 scstr_t scstrchr(scstr_t s, int c) {
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257 size_t pos = 0;
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258 if(ucx_strchr(s.ptr, s.length, c, &pos)) {
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259 return scstrsubs(s, pos);
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260 }
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261 return scstrn(NULL, 0);
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262 }
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263
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264 scstr_t scstrrchr(scstr_t s, int c) {
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265 size_t pos = 0;
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266 if(ucx_strrchr(s.ptr, s.length, c, &pos)) {
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267 return scstrsubs(s, pos);
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268 }
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269 return scstrn(NULL, 0);
0
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270 }
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271
152
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272 #define ptable_r(dest, useheap, ptable, index) (dest = useheap ? \
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273 ((size_t*)ptable)[index] : (size_t) ((uint8_t*)ptable)[index])
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274
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275 #define ptable_w(useheap, ptable, index, src) do {\
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276 if (!useheap) ((uint8_t*)ptable)[index] = (uint8_t) src;\
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277 else ((size_t*)ptable)[index] = src;\
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278 } while (0);
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279
157
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280
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281 static const char* ucx_strstr(
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282 const char *str,
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283 size_t length,
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284 const char *match,
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285 size_t matchlen,
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286 size_t *newlen)
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287 {
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288 *newlen = length;
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289 if (matchlen == 0) {
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290 return str;
152
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291 }
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292
157
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293 const char *result = NULL;
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294 size_t resultlen = 0;
152
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295
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296 /*
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297 * IMPORTANT:
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298 * our prefix table contains the prefix length PLUS ONE
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299 * this is our decision, because we want to use the full range of size_t
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300 * the original algorithm needs a (-1) at one single place
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301 * and we want to avoid that
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302 */
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303
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304 /* static prefix table */
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305 static uint8_t s_prefix_table[256];
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306
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307 /* check pattern length and use appropriate prefix table */
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308 /* if the pattern exceeds static prefix table, allocate on the heap */
157
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309 register int useheap = matchlen > 255;
152
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310 register void* ptable = useheap ?
157
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311 calloc(matchlen+1, sizeof(size_t)): s_prefix_table;
152
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312
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313 /* keep counter in registers */
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314 register size_t i, j;
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315
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316 /* fill prefix table */
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317 i = 0; j = 0;
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318 ptable_w(useheap, ptable, i, j);
157
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319 while (i < matchlen) {
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320 while (j >= 1 && match[j-1] != match[i]) {
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321 ptable_r(j, useheap, ptable, j-1);
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322 }
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323 i++; j++;
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324 ptable_w(useheap, ptable, i, j);
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325 }
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326
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327 /* search */
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328 i = 0; j = 1;
157
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329 while (i < length) {
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330 while (j >= 1 && str[i] != match[j-1]) {
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331 ptable_r(j, useheap, ptable, j-1);
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332 }
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333 i++; j++;
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334 if (j-1 == matchlen) {
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335 size_t start = i - matchlen;
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336 result = str + start;
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337 resultlen = length - start;
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338 break;
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339 }
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340 }
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341
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342 /* if prefix table was allocated on the heap, free it */
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343 if (ptable != s_prefix_table) {
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344 free(ptable);
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345 }
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346
157
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347 *newlen = resultlen;
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348 return result;
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349 }
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350
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351 sstr_t scstrsstr(sstr_t string, scstr_t match) {
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352 sstr_t result;
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353
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354 size_t reslen;
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355 const char *resstr = ucx_strstr(string.ptr, string.length, match.ptr, match.length, &reslen);
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356 if(!resstr) {
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357 result.ptr = NULL;
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358 result.length = 0;
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359 return result;
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360 }
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361
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362 size_t pos = resstr - string.ptr;
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363 result.ptr = string.ptr + pos;
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364 result.length = reslen;
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365
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366 return result;
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367 }
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368
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369 scstr_t scstrscstr(scstr_t string, scstr_t match) {
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370 scstr_t result;
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371
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372 size_t reslen;
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373 const char *resstr = ucx_strstr(string.ptr, string.length, match.ptr, match.length, &reslen);
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374 if(!resstr) {
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375 result.ptr = NULL;
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376 result.length = 0;
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377 return result;
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378 }
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379
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380 size_t pos = resstr - string.ptr;
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381 result.ptr = string.ptr + pos;
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382 result.length = reslen;
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383
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384 return result;
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385 }
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386
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387 #undef ptable_r
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388 #undef ptable_w
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389
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390 sstr_t* scstrsplit(scstr_t s, scstr_t d, ssize_t *n) {
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391 return scstrsplit_a(ucx_default_allocator(), s, d, n);
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392 }
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393
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394 sstr_t* scstrsplit_a(UcxAllocator *allocator, scstr_t s, scstr_t d, ssize_t *n) {
0
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395 if (s.length == 0 || d.length == 0) {
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396 *n = -1;
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397 return NULL;
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398 }
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399
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diff changeset
400 /* special cases: delimiter is at least as large as the string */
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401 if (d.length >= s.length) {
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402 /* exact match */
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403 if (sstrcmp(s, d) == 0) {
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404 *n = 0;
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405 return NULL;
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406 } else /* no match possible */ {
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407 *n = 1;
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408 sstr_t *result = (sstr_t*) almalloc(allocator, sizeof(sstr_t));
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409 if(result) {
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410 *result = sstrdup_a(allocator, s);
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411 } else {
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412 *n = -2;
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413 }
152
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414 return result;
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diff changeset
415 }
0
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416 }
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417
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418 ssize_t nmax = *n;
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419 size_t arrlen = 16;
157
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420 sstr_t* result = (sstr_t*) alcalloc(allocator, arrlen, sizeof(sstr_t));
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421
152
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422 if (result) {
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423 scstr_t curpos = s;
152
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diff changeset
424 ssize_t j = 1;
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425 while (1) {
157
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diff changeset
426 scstr_t match;
152
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diff changeset
427 /* optimize for one byte delimiters */
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diff changeset
428 if (d.length == 1) {
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diff changeset
429 match = curpos;
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diff changeset
430 for (size_t i = 0 ; i < curpos.length ; i++) {
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diff changeset
431 if (curpos.ptr[i] == *(d.ptr)) {
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diff changeset
432 match.ptr = curpos.ptr + i;
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diff changeset
433 break;
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434 }
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diff changeset
435 match.length--;
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diff changeset
436 }
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diff changeset
437 } else {
157
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diff changeset
438 match = scstrscstr(curpos, d);
152
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diff changeset
439 }
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diff changeset
440 if (match.length > 0) {
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diff changeset
441 /* is this our last try? */
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diff changeset
442 if (nmax == 0 || j < nmax) {
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diff changeset
443 /* copy the current string to the array */
157
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diff changeset
444 scstr_t item = scstrn(curpos.ptr, match.ptr - curpos.ptr);
152
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diff changeset
445 result[j-1] = sstrdup_a(allocator, item);
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diff changeset
446 size_t processed = item.length + d.length;
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diff changeset
447 curpos.ptr += processed;
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diff changeset
448 curpos.length -= processed;
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449
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diff changeset
450 /* allocate memory for the next string */
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diff changeset
451 j++;
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diff changeset
452 if (j > arrlen) {
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diff changeset
453 arrlen *= 2;
157
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diff changeset
454 size_t reallocsz;
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diff changeset
455 sstr_t* reallocated = NULL;
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diff changeset
456 if(!ucx_szmul(arrlen, sizeof(sstr_t), &reallocsz)) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
457 reallocated = (sstr_t*) alrealloc(
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
458 allocator, result, reallocsz);
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
459 }
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
460 if (reallocated) {
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
461 result = reallocated;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
462 } else {
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
463 for (ssize_t i = 0 ; i < j-1 ; i++) {
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
464 alfree(allocator, result[i].ptr);
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
465 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
466 alfree(allocator, result);
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
467 *n = -2;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
468 return NULL;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
469 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
470 }
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
471 } else {
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
472 /* nmax reached, copy the _full_ remaining string */
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
473 result[j-1] = sstrdup_a(allocator, curpos);
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
474 break;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
475 }
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
476 } else {
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
477 /* no more matches, copy last string */
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
478 result[j-1] = sstrdup_a(allocator, curpos);
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
479 break;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
480 }
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
481 }
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
482 *n = j;
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
483 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
484 *n = -2;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
485 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
486
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
487 return result;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
488 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
489
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
490 int scstrcmp(scstr_t s1, scstr_t s2) {
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
491 if (s1.length == s2.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
492 return memcmp(s1.ptr, s2.ptr, s1.length);
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
493 } else if (s1.length > s2.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
494 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
495 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
496 return -1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
497 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
498 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
499
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
500 int scstrcasecmp(scstr_t s1, scstr_t s2) {
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
501 if (s1.length == s2.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
502 #ifdef _WIN32
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
503 return _strnicmp(s1.ptr, s2.ptr, s1.length);
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
504 #else
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
505 return strncasecmp(s1.ptr, s2.ptr, s1.length);
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
506 #endif
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
507 } else if (s1.length > s2.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
508 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
509 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
510 return -1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
511 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
512 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
513
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
514 sstr_t scstrdup(scstr_t s) {
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
515 return sstrdup_a(ucx_default_allocator(), s);
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
516 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
517
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
518 sstr_t scstrdup_a(UcxAllocator *allocator, scstr_t s) {
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
519 sstr_t newstring;
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
520 newstring.ptr = (char*)almalloc(allocator, s.length + 1);
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
521 if (newstring.ptr) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
522 newstring.length = s.length;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
523 newstring.ptr[newstring.length] = 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
524
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
525 memcpy(newstring.ptr, s.ptr, s.length);
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
526 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
527 newstring.length = 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
528 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
529
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
530 return newstring;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
531 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
532
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
533
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
534 static size_t ucx_strtrim(const char *s, size_t len, size_t *newlen) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
535 const char *newptr = s;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
536 size_t length = len;
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
537
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
538 while(length > 0 && isspace(*newptr)) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
539 newptr++;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
540 length--;
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
541 }
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
542 while(length > 0 && isspace(newptr[length-1])) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
543 length--;
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
544 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
545
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
546 *newlen = length;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
547 return newptr - s;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
548 }
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
549
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
550 sstr_t sstrtrim(sstr_t string) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
551 sstr_t newstr;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
552 newstr.ptr = string.ptr
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
553 + ucx_strtrim(string.ptr, string.length, &newstr.length);
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
554 return newstr;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
555 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
556
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
557 scstr_t scstrtrim(scstr_t string) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
558 scstr_t newstr;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
559 newstr.ptr = string.ptr
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
560 + ucx_strtrim(string.ptr, string.length, &newstr.length);
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
561 return newstr;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
562 }
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
563
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
564 int scstrprefix(scstr_t string, scstr_t prefix) {
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
565 if (string.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
566 return prefix.length == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
567 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
568 if (prefix.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
569 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
570 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
571
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
572 if (prefix.length > string.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
573 return 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
574 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
575 return memcmp(string.ptr, prefix.ptr, prefix.length) == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
576 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
577 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
578
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
579 int scstrsuffix(scstr_t string, scstr_t suffix) {
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
580 if (string.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
581 return suffix.length == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
582 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
583 if (suffix.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
584 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
585 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
586
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
587 if (suffix.length > string.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
588 return 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
589 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
590 return memcmp(string.ptr+string.length-suffix.length,
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
591 suffix.ptr, suffix.length) == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
592 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
593 }
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
594
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
595 sstr_t scstrlower(scstr_t string) {
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
596 sstr_t ret = sstrdup(string);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
597 for (size_t i = 0; i < ret.length ; i++) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
598 ret.ptr[i] = tolower(ret.ptr[i]);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
599 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
600 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
601 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
602
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
603 sstr_t scstrlower_a(UcxAllocator *allocator, scstr_t string) {
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
604 sstr_t ret = sstrdup_a(allocator, string);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
605 for (size_t i = 0; i < ret.length ; i++) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
606 ret.ptr[i] = tolower(ret.ptr[i]);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
607 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
608 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
609 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
610
157
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
611 sstr_t scstrupper(scstr_t string) {
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
612 sstr_t ret = sstrdup(string);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
613 for (size_t i = 0; i < ret.length ; i++) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
614 ret.ptr[i] = toupper(ret.ptr[i]);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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615 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
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616 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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617 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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618
157
0b33b9396851 ucx update
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parents: 152
diff changeset
619 sstr_t scstrupper_a(UcxAllocator *allocator, scstr_t string) {
124
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620 sstr_t ret = sstrdup_a(allocator, string);
80609f9675f1 added support for icons for the table widget (GTK)
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621 for (size_t i = 0; i < ret.length ; i++) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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622 ret.ptr[i] = toupper(ret.ptr[i]);
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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623 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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624 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
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625 }
157
0b33b9396851 ucx update
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parents: 152
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626
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
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627 // type adjustment functions
0b33b9396851 ucx update
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parents: 152
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628 scstr_t ucx_sc2sc(scstr_t str) {
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
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629 return str;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
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630 }
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
631 scstr_t ucx_ss2sc(sstr_t str) {
0b33b9396851 ucx update
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632 scstr_t cs;
0b33b9396851 ucx update
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parents: 152
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633 cs.ptr = str.ptr;
0b33b9396851 ucx update
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parents: 152
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634 cs.length = str.length;
0b33b9396851 ucx update
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parents: 152
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635 return cs;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
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636 }
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
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637 scstr_t ucx_ss2c_s(scstr_t c) {
0b33b9396851 ucx update
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parents: 152
diff changeset
638 return c;
0b33b9396851 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 152
diff changeset
639 }

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