src/ucx/string.c

Wed, 28 Oct 2015 17:59:34 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Wed, 28 Oct 2015 17:59:34 +0100
changeset 105
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parent 99
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child 135
471e28cca288
permissions
-rw-r--r--

using readdir_r instead of readdir

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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 2015 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 <ctype.h>
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33
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34 #include "string.h"
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35 #include "allocator.h"
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36
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37 sstr_t sstr(char *cstring) {
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38 sstr_t string;
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39 string.ptr = cstring;
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40 string.length = strlen(cstring);
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41 return string;
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42 }
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43
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44 sstr_t sstrn(char *cstring, size_t length) {
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45 sstr_t string;
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46 string.ptr = cstring;
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47 string.length = length;
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48 return string;
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49 }
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50
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51 size_t sstrnlen(size_t n, sstr_t s, ...) {
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52 va_list ap;
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53 size_t size = s.length;
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54 va_start(ap, s);
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55
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56 for (size_t i = 1 ; i < n ; i++) {
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57 sstr_t str = va_arg(ap, sstr_t);
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58 size += str.length;
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59 }
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60 va_end(ap);
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61
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62 return size;
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63 }
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64
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65 static sstr_t sstrvcat_a(
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66 UcxAllocator *a,
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67 size_t count,
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68 sstr_t s1,
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69 sstr_t s2,
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70 va_list ap) {
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71 sstr_t str;
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72 str.ptr = NULL;
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73 str.length = 0;
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74 if(count < 2) {
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75 return str;
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76 }
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77
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78 sstr_t *strings = (sstr_t*) calloc(count, sizeof(sstr_t));
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79 if(!strings) {
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80 return str;
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81 }
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82
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83 // get all args and overall length
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84 strings[0] = s1;
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85 strings[1] = s2;
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86 size_t strlen = s1.length + s2.length;
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87 for (size_t i=2;i<count;i++) {
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88 sstr_t s = va_arg (ap, sstr_t);
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89 strings[i] = s;
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90 strlen += s.length;
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91 }
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92
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93 // create new string
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94 str.ptr = (char*) almalloc(a, strlen + 1);
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95 str.length = strlen;
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96 if(!str.ptr) {
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97 free(strings);
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98 str.length = 0;
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99 return str;
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100 }
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101
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102 // concatenate strings
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103 size_t pos = 0;
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104 for (size_t i=0;i<count;i++) {
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105 sstr_t s = strings[i];
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106 memcpy(str.ptr + pos, s.ptr, s.length);
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107 pos += s.length;
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108 }
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109
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110 str.ptr[str.length] = '\0';
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111
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112 free(strings);
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113
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114 return str;
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115 }
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116
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117 sstr_t sstrcat(size_t count, sstr_t s1, sstr_t s2, ...) {
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118 va_list ap;
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119 va_start(ap, s2);
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120 sstr_t s = sstrvcat_a(ucx_default_allocator(), count, s1, s2, ap);
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121 va_end(ap);
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122 return s;
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123 }
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124
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125 sstr_t sstrcat_a(UcxAllocator *a, size_t count, sstr_t s1, sstr_t s2, ...) {
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126 va_list ap;
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127 va_start(ap, s2);
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128 sstr_t s = sstrvcat_a(a, count, s1, s2, ap);
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129 va_end(ap);
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130 return s;
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131 }
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132
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133 sstr_t sstrsubs(sstr_t s, size_t start) {
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134 return sstrsubsl (s, start, s.length-start);
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135 }
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136
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137 sstr_t sstrsubsl(sstr_t s, size_t start, size_t length) {
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138 sstr_t new_sstr;
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139 if (start >= s.length) {
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140 new_sstr.ptr = NULL;
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141 new_sstr.length = 0;
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142 } else {
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143 if (length > s.length-start) {
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144 length = s.length-start;
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145 }
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146 new_sstr.ptr = &s.ptr[start];
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147 new_sstr.length = length;
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148 }
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149 return new_sstr;
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150 }
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151
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152 sstr_t sstrchr(sstr_t s, int c) {
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153 for(size_t i=0;i<s.length;i++) {
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154 if(s.ptr[i] == c) {
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155 return sstrsubs(s, i);
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156 }
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157 }
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158 sstr_t n;
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parents:
diff changeset
159 n.ptr = NULL;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
160 n.length = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
161 return n;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
162 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
163
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
164 sstr_t sstrrchr(sstr_t s, int c) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
165 if (s.length > 0) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
166 for(size_t i=s.length;i>0;i--) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
167 if(s.ptr[i-1] == c) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
168 return sstrsubs(s, i-1);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
169 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
170 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
171 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
172 sstr_t n;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
173 n.ptr = NULL;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
174 n.length = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
175 return n;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
176 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
177
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
178 sstr_t* sstrsplit(sstr_t s, sstr_t d, ssize_t *n) {
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
179 return sstrsplit_a(ucx_default_allocator(), s, d, n);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
180 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
181
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
182 sstr_t* sstrsplit_a(UcxAllocator *allocator, sstr_t s, sstr_t d, ssize_t *n) {
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
183 if (s.length == 0 || d.length == 0) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
184 *n = -1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
185 return NULL;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
186 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
187
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
188 sstr_t* result;
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
189 ssize_t nmax = *n;
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
190 *n = 1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
191
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
192 /* special case: exact match - no processing needed */
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
193 if (sstrcmp(s, d) == 0) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
194 *n = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
195 return NULL;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
196 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
197 sstr_t sv = sstrdup(s);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
198 if (sv.length == 0) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
199 *n = -2;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
200 return NULL;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
201 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
202
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
203 for (size_t i = 0 ; i < s.length ; i++) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
204 if (sv.ptr[i] == d.ptr[0]) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
205 _Bool match = 1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
206 for (size_t j = 1 ; j < d.length ; j++) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
207 if (j+i < s.length) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
208 match &= (sv.ptr[i+j] == d.ptr[j]);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
209 } else {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
210 match = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
211 break;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
212 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
213 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
214 if (match) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
215 (*n)++;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
216 for (size_t j = 0 ; j < d.length ; j++) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
217 sv.ptr[i+j] = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
218 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
219 i += d.length;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
220 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
221 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
222 if ((*n) == nmax) break;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
223 }
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
224 result = (sstr_t*) almalloc(allocator, sizeof(sstr_t)*(*n));
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
225
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
226 if (result) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
227 char *pptr = sv.ptr;
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
228 for (ssize_t i = 0 ; i < *n ; i++) {
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
229 size_t l = strlen(pptr);
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
230 char* ptr = (char*) almalloc(allocator, l + 1);
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
231 if (ptr) {
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
232 memcpy(ptr, pptr, l);
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
233 ptr[l] = 0;
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
234
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
235 result[i] = sstrn(ptr, l);
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
236 pptr += l + d.length;
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
237 } else {
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
238 for (ssize_t j = i-1 ; j >= 0 ; j--) {
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
239 alfree(allocator, result[j].ptr);
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
240 }
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
241 alfree(allocator, result);
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
242 *n = -2;
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
243 break;
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
244 }
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
245 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
246 } else {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
247 *n = -2;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
248 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
249
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
250 free(sv.ptr);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
251
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
252 return result;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
253 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
254
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
255 int sstrcmp(sstr_t s1, sstr_t s2) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
256 if (s1.length == s2.length) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
257 return memcmp(s1.ptr, s2.ptr, s1.length);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
258 } else if (s1.length > s2.length) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
259 return 1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
260 } else {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
261 return -1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
262 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
263 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
264
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
265 int sstrcasecmp(sstr_t s1, sstr_t s2) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
266 if (s1.length == s2.length) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
267 #ifdef _WIN32
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
268 return _strnicmp(s1.ptr, s2.ptr, s1.length);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
269 #else
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
270 return strncasecmp(s1.ptr, s2.ptr, s1.length);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
271 #endif
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
272 } else if (s1.length > s2.length) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
273 return 1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
274 } else {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
275 return -1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
276 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
277 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
278
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
279 sstr_t sstrdup(sstr_t s) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
280 return sstrdup_a(ucx_default_allocator(), s);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
281 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
282
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
283 sstr_t sstrdup_a(UcxAllocator *allocator, sstr_t s) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
284 sstr_t newstring;
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
285 newstring.ptr = (char*)almalloc(allocator, s.length + 1);
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
286 if (newstring.ptr) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
287 newstring.length = s.length;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
288 newstring.ptr[newstring.length] = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
289
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
290 memcpy(newstring.ptr, s.ptr, s.length);
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
291 } else {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
292 newstring.length = 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
293 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
294
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
295 return newstring;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
296 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
297
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
298 sstr_t sstrtrim(sstr_t string) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
299 sstr_t newstr = string;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
300
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
301 while (newstr.length > 0 && isspace(*newstr.ptr)) {
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
302 newstr.ptr++;
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
303 newstr.length--;
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
304 }
99
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
305 while (newstr.length > 0 && isspace(newstr.ptr[newstr.length-1])) {
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
306 newstr.length--;
91
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
307 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
308
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
309 return newstr;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
310 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
311
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
312 int sstrprefix(sstr_t string, sstr_t prefix) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
313 if (string.length == 0) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
314 return prefix.length == 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
315 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
316 if (prefix.length == 0) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
317 return 1;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
318 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
319
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
320 if (prefix.length > string.length) {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
321 return 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
322 } else {
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
323 return memcmp(string.ptr, prefix.ptr, prefix.length) == 0;
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
324 }
fac51f87def0 ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents:
diff changeset
325 }
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parents:
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326
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327 int sstrsuffix(sstr_t string, sstr_t suffix) {
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parents:
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328 if (string.length == 0) {
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329 return suffix.length == 0;
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330 }
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parents:
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331 if (suffix.length == 0) {
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parents:
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332 return 1;
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parents:
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333 }
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parents:
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334
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parents:
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335 if (suffix.length > string.length) {
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336 return 0;
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parents:
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337 } else {
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338 return memcmp(string.ptr+string.length-suffix.length,
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parents:
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339 suffix.ptr, suffix.length) == 0;
fac51f87def0 ucx update
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parents:
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340 }
fac51f87def0 ucx update
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parents:
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341 }
99
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parents: 91
diff changeset
342
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parents: 91
diff changeset
343 sstr_t sstrlower(sstr_t string) {
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344 sstr_t ret = sstrdup(string);
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parents: 91
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345 for (size_t i = 0; i < ret.length ; i++) {
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346 ret.ptr[i] = tolower(ret.ptr[i]);
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347 }
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parents: 91
diff changeset
348 return ret;
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parents: 91
diff changeset
349 }
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parents: 91
diff changeset
350
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parents: 91
diff changeset
351 sstr_t sstrlower_a(UcxAllocator *allocator, sstr_t string) {
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parents: 91
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352 sstr_t ret = sstrdup_a(allocator, string);
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parents: 91
diff changeset
353 for (size_t i = 0; i < ret.length ; i++) {
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parents: 91
diff changeset
354 ret.ptr[i] = tolower(ret.ptr[i]);
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parents: 91
diff changeset
355 }
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parents: 91
diff changeset
356 return ret;
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parents: 91
diff changeset
357 }
b9a6af0ae41a ucx update
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parents: 91
diff changeset
358
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parents: 91
diff changeset
359 sstr_t sstrupper(sstr_t string) {
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parents: 91
diff changeset
360 sstr_t ret = sstrdup(string);
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
361 for (size_t i = 0; i < ret.length ; i++) {
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parents: 91
diff changeset
362 ret.ptr[i] = toupper(ret.ptr[i]);
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parents: 91
diff changeset
363 }
b9a6af0ae41a ucx update
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parents: 91
diff changeset
364 return ret;
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
365 }
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
366
b9a6af0ae41a ucx update
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parents: 91
diff changeset
367 sstr_t sstrupper_a(UcxAllocator *allocator, sstr_t string) {
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parents: 91
diff changeset
368 sstr_t ret = sstrdup_a(allocator, string);
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parents: 91
diff changeset
369 for (size_t i = 0; i < ret.length ; i++) {
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Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
370 ret.ptr[i] = toupper(ret.ptr[i]);
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parents: 91
diff changeset
371 }
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
372 return ret;
b9a6af0ae41a ucx update
Olaf Wintermann <olaf.wintermann@gmail.com>
parents: 91
diff changeset
373 }

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