ucx/string.c

Fri, 09 Nov 2018 17:11:12 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Fri, 09 Nov 2018 17:11:12 +0100
changeset 155
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parent 152
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child 157
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permissions
-rw-r--r--

fixes document switching with textareas (Motif)

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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 2016 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 #include <stdint.h>
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33 #include <ctype.h>
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34
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35 #include "string.h"
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36 #include "allocator.h"
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37
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38 sstr_t sstr(char *cstring) {
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39 sstr_t string;
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40 string.ptr = cstring;
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41 string.length = strlen(cstring);
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42 return string;
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43 }
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44
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45 sstr_t sstrn(char *cstring, size_t length) {
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46 sstr_t string;
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47 string.ptr = cstring;
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48 string.length = length;
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49 return string;
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50 }
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51
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52 size_t sstrnlen(size_t n, sstr_t s, ...) {
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53 va_list ap;
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54 size_t size = s.length;
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55 va_start(ap, s);
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56
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57 for (size_t i = 1 ; i < n ; i++) {
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58 sstr_t str = va_arg(ap, sstr_t);
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59 size += str.length;
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60 }
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61 va_end(ap);
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62
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63 return size;
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64 }
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65
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66 static sstr_t sstrvcat_a(
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67 UcxAllocator *a,
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68 size_t count,
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69 sstr_t s1,
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70 sstr_t s2,
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71 va_list ap) {
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72 sstr_t str;
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73 str.ptr = NULL;
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74 str.length = 0;
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75 if(count < 2) {
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76 return str;
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77 }
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78
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79 sstr_t *strings = (sstr_t*) calloc(count, sizeof(sstr_t));
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80 if(!strings) {
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81 return str;
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82 }
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83
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84 // get all args and overall length
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85 strings[0] = s1;
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86 strings[1] = s2;
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87 size_t strlen = s1.length + s2.length;
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88 for (size_t i=2;i<count;i++) {
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89 sstr_t s = va_arg (ap, sstr_t);
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90 strings[i] = s;
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91 strlen += s.length;
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92 }
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93
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94 // create new string
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95 str.ptr = (char*) almalloc(a, strlen + 1);
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96 str.length = strlen;
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97 if(!str.ptr) {
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98 free(strings);
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99 str.length = 0;
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100 return str;
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101 }
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102
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103 // concatenate strings
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104 size_t pos = 0;
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105 for (size_t i=0;i<count;i++) {
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106 sstr_t s = strings[i];
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107 memcpy(str.ptr + pos, s.ptr, s.length);
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108 pos += s.length;
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109 }
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110
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111 str.ptr[str.length] = '\0';
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112
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113 free(strings);
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114
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115 return str;
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116 }
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117
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118 sstr_t sstrcat(size_t count, sstr_t s1, sstr_t s2, ...) {
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119 va_list ap;
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120 va_start(ap, s2);
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121 sstr_t s = sstrvcat_a(ucx_default_allocator(), count, s1, s2, ap);
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122 va_end(ap);
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123 return s;
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124 }
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125
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126 sstr_t sstrcat_a(UcxAllocator *a, size_t count, sstr_t s1, sstr_t s2, ...) {
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127 va_list ap;
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128 va_start(ap, s2);
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129 sstr_t s = sstrvcat_a(a, count, s1, s2, ap);
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130 va_end(ap);
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131 return s;
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132 }
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133
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134 sstr_t sstrsubs(sstr_t s, size_t start) {
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135 return sstrsubsl (s, start, s.length-start);
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136 }
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137
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138 sstr_t sstrsubsl(sstr_t s, size_t start, size_t length) {
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139 sstr_t new_sstr;
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140 if (start >= s.length) {
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141 new_sstr.ptr = NULL;
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142 new_sstr.length = 0;
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143 } else {
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144 if (length > s.length-start) {
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145 length = s.length-start;
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146 }
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147 new_sstr.ptr = &s.ptr[start];
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148 new_sstr.length = length;
0
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149 }
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150 return new_sstr;
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151 }
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152
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153 sstr_t sstrchr(sstr_t s, int c) {
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154 for(size_t i=0;i<s.length;i++) {
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155 if(s.ptr[i] == c) {
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156 return sstrsubs(s, i);
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157 }
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158 }
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159 sstr_t n;
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160 n.ptr = NULL;
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161 n.length = 0;
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162 return n;
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163 }
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164
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165 sstr_t sstrrchr(sstr_t s, int c) {
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166 if (s.length > 0) {
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167 for(size_t i=s.length;i>0;i--) {
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168 if(s.ptr[i-1] == c) {
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169 return sstrsubs(s, i-1);
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170 }
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171 }
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172 }
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173 sstr_t n;
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174 n.ptr = NULL;
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175 n.length = 0;
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176 return n;
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177 }
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178
152
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179 #define ptable_r(dest, useheap, ptable, index) (dest = useheap ? \
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180 ((size_t*)ptable)[index] : (size_t) ((uint8_t*)ptable)[index])
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181
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182 #define ptable_w(useheap, ptable, index, src) do {\
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183 if (!useheap) ((uint8_t*)ptable)[index] = (uint8_t) src;\
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184 else ((size_t*)ptable)[index] = src;\
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185 } while (0);
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186
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187 sstr_t sstrstr(sstr_t string, sstr_t match) {
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188 if (match.length == 0) {
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189 return string;
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190 }
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191
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192 /* prepare default return value in case of no match */
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193 sstr_t result = sstrn(NULL, 0);
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194
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195 /*
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196 * IMPORTANT:
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197 * our prefix table contains the prefix length PLUS ONE
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198 * this is our decision, because we want to use the full range of size_t
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199 * the original algorithm needs a (-1) at one single place
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200 * and we want to avoid that
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201 */
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202
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203 /* static prefix table */
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204 static uint8_t s_prefix_table[256];
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205
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206 /* check pattern length and use appropriate prefix table */
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207 /* if the pattern exceeds static prefix table, allocate on the heap */
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208 register int useheap = match.length > 255;
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209 register void* ptable = useheap ?
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210 calloc(match.length+1, sizeof(size_t)): s_prefix_table;
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211
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212 /* keep counter in registers */
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213 register size_t i, j;
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214
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215 /* fill prefix table */
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216 i = 0; j = 0;
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217 ptable_w(useheap, ptable, i, j);
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218 while (i < match.length) {
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219 while (j >= 1 && match.ptr[j-1] != match.ptr[i]) {
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220 ptable_r(j, useheap, ptable, j-1);
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221 }
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222 i++; j++;
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223 ptable_w(useheap, ptable, i, j);
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224 }
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225
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226 /* search */
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227 i = 0; j = 1;
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228 while (i < string.length) {
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229 while (j >= 1 && string.ptr[i] != match.ptr[j-1]) {
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230 ptable_r(j, useheap, ptable, j-1);
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231 }
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232 i++; j++;
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233 if (j-1 == match.length) {
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234 size_t start = i - match.length;
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235 result.ptr = string.ptr + start;
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236 result.length = string.length - start;
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237 break;
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238 }
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239 }
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240
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241 /* if prefix table was allocated on the heap, free it */
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242 if (ptable != s_prefix_table) {
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243 free(ptable);
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244 }
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245
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246 return result;
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247 }
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248
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249 #undef ptable_r
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250 #undef ptable_w
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251
124
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252 sstr_t* sstrsplit(sstr_t s, sstr_t d, ssize_t *n) {
0
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253 return sstrsplit_a(ucx_default_allocator(), s, d, n);
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254 }
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255
124
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256 sstr_t* sstrsplit_a(UcxAllocator *allocator, sstr_t s, sstr_t d, ssize_t *n) {
0
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257 if (s.length == 0 || d.length == 0) {
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258 *n = -1;
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259 return NULL;
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260 }
152
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261
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262 /* special cases: delimiter is at least as large as the string */
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263 if (d.length >= s.length) {
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264 /* exact match */
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265 if (sstrcmp(s, d) == 0) {
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266 *n = 0;
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267 return NULL;
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268 } else /* no match possible */ {
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269 *n = 1;
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270 sstr_t *result = (sstr_t*) almalloc(allocator, sizeof(sstr_t));
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271 *result = sstrdup_a(allocator, s);
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272 return result;
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273 }
0
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274 }
152
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275
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276 ssize_t nmax = *n;
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277 size_t arrlen = 16;
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278 sstr_t* result = (sstr_t*) almalloc(allocator, arrlen*sizeof(sstr_t));
0
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279
152
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280 if (result) {
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281 sstr_t curpos = s;
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282 ssize_t j = 1;
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283 while (1) {
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284 sstr_t match;
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285 /* optimize for one byte delimiters */
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286 if (d.length == 1) {
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287 match = curpos;
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288 for (size_t i = 0 ; i < curpos.length ; i++) {
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289 if (curpos.ptr[i] == *(d.ptr)) {
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290 match.ptr = curpos.ptr + i;
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diff changeset
291 break;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 124
diff changeset
292 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
293 match.length--;
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parents: 124
diff changeset
294 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
295 } else {
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parents: 124
diff changeset
296 match = sstrstr(curpos, d);
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
297 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
298 if (match.length > 0) {
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
299 /* is this our last try? */
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parents: 124
diff changeset
300 if (nmax == 0 || j < nmax) {
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parents: 124
diff changeset
301 /* copy the current string to the array */
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
302 sstr_t item = sstrn(curpos.ptr, match.ptr - curpos.ptr);
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
303 result[j-1] = sstrdup_a(allocator, item);
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
304 size_t processed = item.length + d.length;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
305 curpos.ptr += processed;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
306 curpos.length -= processed;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
307
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
308 /* allocate memory for the next string */
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
309 j++;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
310 if (j > arrlen) {
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parents: 124
diff changeset
311 arrlen *= 2;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
312 sstr_t* reallocated = (sstr_t*) alrealloc(
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
313 allocator, result, arrlen*sizeof(sstr_t));
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
314 if (reallocated) {
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parents: 124
diff changeset
315 result = reallocated;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
316 } else {
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
317 for (ssize_t i = 0 ; i < j-1 ; i++) {
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
318 alfree(allocator, result[i].ptr);
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
319 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
320 alfree(allocator, result);
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parents: 124
diff changeset
321 *n = -2;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
322 return NULL;
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
323 }
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
324 }
0
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parents:
diff changeset
325 } else {
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
326 /* nmax reached, copy the _full_ remaining string */
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parents: 124
diff changeset
327 result[j-1] = sstrdup_a(allocator, curpos);
0
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parents:
diff changeset
328 break;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
329 }
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
330 } else {
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
331 /* 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
332 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
333 break;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
334 }
0
1f419bd32da1 added files
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parents:
diff changeset
335 }
152
62921b370c60 fixes use after free when a GtkTreeView was destroyed
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parents: 124
diff changeset
336 *n = j;
0
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parents:
diff changeset
337 } else {
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parents:
diff changeset
338 *n = -2;
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parents:
diff changeset
339 }
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parents:
diff changeset
340
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parents:
diff changeset
341 return result;
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
342 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
343
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parents:
diff changeset
344 int sstrcmp(sstr_t s1, sstr_t s2) {
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parents:
diff changeset
345 if (s1.length == s2.length) {
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parents:
diff changeset
346 return memcmp(s1.ptr, s2.ptr, s1.length);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
347 } else if (s1.length > s2.length) {
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parents:
diff changeset
348 return 1;
1f419bd32da1 added files
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parents:
diff changeset
349 } else {
1f419bd32da1 added files
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parents:
diff changeset
350 return -1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
351 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
352 }
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
353
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parents:
diff changeset
354 int sstrcasecmp(sstr_t s1, sstr_t s2) {
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parents:
diff changeset
355 if (s1.length == s2.length) {
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parents:
diff changeset
356 #ifdef _WIN32
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parents:
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357 return _strnicmp(s1.ptr, s2.ptr, s1.length);
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parents:
diff changeset
358 #else
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parents:
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359 return strncasecmp(s1.ptr, s2.ptr, s1.length);
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parents:
diff changeset
360 #endif
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parents:
diff changeset
361 } else if (s1.length > s2.length) {
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parents:
diff changeset
362 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
363 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
364 return -1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
365 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
366 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
367
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parents:
diff changeset
368 sstr_t sstrdup(sstr_t s) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
369 return sstrdup_a(ucx_default_allocator(), s);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
370 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
371
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parents:
diff changeset
372 sstr_t sstrdup_a(UcxAllocator *allocator, sstr_t s) {
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parents:
diff changeset
373 sstr_t newstring;
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
374 newstring.ptr = (char*)almalloc(allocator, s.length + 1);
0
1f419bd32da1 added files
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parents:
diff changeset
375 if (newstring.ptr) {
1f419bd32da1 added files
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parents:
diff changeset
376 newstring.length = s.length;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
377 newstring.ptr[newstring.length] = 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
378
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
379 memcpy(newstring.ptr, s.ptr, s.length);
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
380 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
381 newstring.length = 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
382 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
383
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
384 return newstring;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
385 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
386
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
387 sstr_t sstrtrim(sstr_t string) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
388 sstr_t newstr = string;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
389
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
390 while (newstr.length > 0 && isspace(*newstr.ptr)) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
391 newstr.ptr++;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
392 newstr.length--;
0
1f419bd32da1 added files
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parents:
diff changeset
393 }
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
394 while (newstr.length > 0 && isspace(newstr.ptr[newstr.length-1])) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
395 newstr.length--;
0
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
396 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
397
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
398 return newstr;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
399 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
400
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
401 int sstrprefix(sstr_t string, sstr_t prefix) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
402 if (string.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
403 return prefix.length == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
404 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
405 if (prefix.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
406 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
407 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
408
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
409 if (prefix.length > string.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
410 return 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
411 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
412 return memcmp(string.ptr, prefix.ptr, prefix.length) == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
413 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
414 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
415
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
416 int sstrsuffix(sstr_t string, sstr_t suffix) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
417 if (string.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
418 return suffix.length == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
419 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
420 if (suffix.length == 0) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
421 return 1;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
422 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
423
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
424 if (suffix.length > string.length) {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
425 return 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
426 } else {
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
427 return memcmp(string.ptr+string.length-suffix.length,
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
428 suffix.ptr, suffix.length) == 0;
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
429 }
1f419bd32da1 added files
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
430 }
124
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
431
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
432 sstr_t sstrlower(sstr_t string) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
433 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
434 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
435 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
436 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
437 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
438 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
439
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
440 sstr_t sstrlower_a(UcxAllocator *allocator, sstr_t string) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
441 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
442 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
443 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
444 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
445 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
446 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
447
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
448 sstr_t sstrupper(sstr_t string) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
449 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
450 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
451 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
diff changeset
452 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
453 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
454 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
455
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
456 sstr_t sstrupper_a(UcxAllocator *allocator, sstr_t string) {
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
457 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
458 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
459 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
diff changeset
460 }
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
461 return ret;
80609f9675f1 added support for icons for the table widget (GTK)
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 0
diff changeset
462 }

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