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annotate anagram/support/agstring.cpp @ 0:13d2b8934445

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Import AnaGram (near-)release tree into Mercurial.
author David A. Holland
date Sat, 22 Dec 2007 17:52:45 -0500
parents
children 57b2cc9b87f7
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1 /**********************************************************
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2
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3 The AnaGram Class Library
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4
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5 The AgString Class
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6 Copyright 1997-2002 Parsifal Software. All Rights Reserved.
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7 See the file COPYING for license and usage terms.
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8
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9 ***********************************************************/
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10
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11 #include <stdarg.h>
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12 #include <stdio.h>
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13 #include <stdlib.h>
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14 #include "port.h"
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15
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16 #include "agstring.h"
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17 #include "assert.h"
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18 #include "csexp.h" // sigh... XXX (for agToUpper)
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19
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20 //#define INCLUDE_LOGGING
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21 #include "log.h"
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22
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23
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24 void AgString::allocate(unsigned n) {
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25 // XXX shouldn't this be just n+sizeof(short)? There's no need to round
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26 // up, and this isn't a correct roundup anyway...
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27 // (and what if malloc returns NULL?)
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28 store = (char *) malloc(((n+sizeof(short))/sizeof(short) + 1)*sizeof(short))
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29 + sizeof(short);
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30 }
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31
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32 void AgString::lock() {
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33 if (store) {
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34 (((short *) (void *)store)[-1])++;
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35 }
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36 }
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37
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38 void AgString::unlock() {
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39 if (store && --(((short *) (void *) store)[-1]) <= 0) {
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40 //delete [] (store - sizeof(short));
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41 free(store - sizeof(short));
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42 }
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43 store = 0;
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44 }
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45
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46 AgString::AgString(const char *s)
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47 : AgIndexedContainer<char>()
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48 {
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49 LOGSECTION("AgString::AgString(const char *)");
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50 LOGV(s);
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51 if (s) {
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52 allocate(strlen(s));
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53 assert(store != 0);
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54 ((short *) (void *)store)[-1] = 1;
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55 strcpy(store, s);
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56 LOGV(store);
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57 }
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58 else store = 0;
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59 }
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60
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61 AgString::AgString(const unsigned n)
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62 {
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63 if (n) {
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64 allocate(n);
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65 assert(store != 0);
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66 ((short *) (void *)store)[-1] = 1;
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67 memset(store, 0, n+1);
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68 }
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69 else {
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70 store = 0;
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71 }
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72 }
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73
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74 AgString::AgString(const char *s, const unsigned n)
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75 {
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76 if (n) {
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77 allocate(n);
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78 unsigned k = strlen(s);
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79 if (n < k) {
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80 k = n;
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81 }
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82 assert(store != 0);
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83 ((short *)(void *) store)[-1] = 1;
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84 if (s) {
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85 strncpy(store, s, k);
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86 }
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87 store[k] = 0;
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88 }
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89 else {
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90 store = 0;
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91 }
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92 }
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93
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94 AgString::AgString(const AgString &s, const unsigned n)
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95 {
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96 if (n) {
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97 allocate(n);
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98 assert(store != 0);
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99 ((short *)(void *) store)[-1] = 1;
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100 if (s.store) {
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101 strncpy(store, s.store, n);
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102 }
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103 store[n] = 0;
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104 }
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105 else {
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106 store = 0;
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107 }
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108 }
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109
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110 char &AgString::operator [] (const unsigned x) {
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111 assert(x < size());
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112 return store[x];
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113 }
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114
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115 const char &AgString::operator [] (const unsigned x) const {
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116 assert(x < size());
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117 return store[x];
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118 }
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119
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120 AgString &AgString::operator = (const AgString &s) {
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121 unlock();
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122 store = s.store;
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123 lock();
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124 return *this;
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125 }
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126
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127 AgString &AgString::toUpper() {
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128 if (store) {
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129 char *s = store;
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130 while (*s) {
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131 *s = (char) agToUpper(*s);
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132 s++;
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133 }
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134 }
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135 return *this;
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136 }
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137
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138 /*
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139 AgString &AgString::toLower() {
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140 if (store) {
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141 char *s = store;
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142 while (*s) {
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143 *s = (char) tolower(*s);
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144 s++;
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145 }
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146 }
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147 return *this;
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148 }
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149 */
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150
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151 int AgString::operator < (const AgString &s) const {
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152 //LOGSECTION("AgString::operator <");
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153 if (store == s.store) {
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154 return 0;
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155 }
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156 else if (store && s.store) {
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157 //LOGV(store) LCV(s.store);
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158 return strcmp(store, s.store) < 0;
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159 }
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160 else {
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161 return store == 0;
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162 }
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163 }
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164
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165 int AgString::operator < (const char *s) const {
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166 if (store == s) {
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167 return 0;
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168 }
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169 else if (store && s) {
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170 return strcmp(store, s) < 0;
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171 }
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172 else {
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173 return store == 0;
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174 }
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175 }
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176
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177 int AgString::operator <= (const AgString &s) const {
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178 if (store == s.store) {
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179 return 1;
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180 }
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181 else if (store && s.store) {
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182 return strcmp(store, s.store) <= 0;
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183 }
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184 else {
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185 return store == 0;
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186 }
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187 }
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188
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189 int AgString::operator <= (const char *s) const {
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190 if (store == s) {
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191 return 1;
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192 }
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193 else if (store && s) {
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194 return strcmp(store, s) <= 0;
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195 }
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196 else {
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197 return store == 0;
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198 }
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199 }
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200
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201 int AgString::operator > (const AgString &s) const {
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202 if (store == s.store) {
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203 return 0;
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204 }
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205 else if (store && s.store) {
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206 return strcmp(store, s.store) > 0;
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207 }
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208 else {
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209 return s.store == 0;
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210 }
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211 }
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212
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213 int AgString::operator > (const char *s) const {
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214 if (store == s) {
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215 return 0;
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216 }
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217 else if (store && s) {
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218 return strcmp(store, s) > 0;
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219 }
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220 else {
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221 return s == 0;
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222 }
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223 }
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224
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225 int AgString::operator >= (const AgString &s) const {
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226 if (store == s.store) {
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227 return 1;
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228 }
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229 else if (store && s.store) {
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230 return strcmp(store, s.store) >= 0;
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231 }
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232 else {
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233 return s.store == 0;
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234 }
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235 }
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236
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237 int AgString::operator >= (const char *s) const {
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238 if (store == s) {
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239 return 1;
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240 }
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241 else if (store && s) {
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242 return strcmp(store, s) >= 0;
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243 }
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244 else {
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245 return s == 0;
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246 }
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247 }
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248
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249 int AgString::iEq(const AgString &s) const {
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250 if (store == s.store) {
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251 return 1;
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252 }
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253 if (store && s.store) {
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254 return stricmp(store, s.store) == 0;
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255 }
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256 else {
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257 return 0;
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258 }
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259 }
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260
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261 int AgString::iEq(const char *s) const {
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262 if (store == s) {
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263 return 1;
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264 }
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265 if (store && s) {
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266 return stricmp(store, s) == 0;
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267 }
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268 else {
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269 return 0;
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270 }
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271 }
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272
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273 int AgString::operator == (const AgString &s) const {
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274 if (store == s.store) {
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275 return 1;
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276 }
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277 if (store && s.store) {
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278 return strcmp(store, s.store) == 0;
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279 }
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280 else {
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281 return 0;
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282 }
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283 }
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284
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285 int AgString::operator == (const char *s) const {
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286 if (store == s) {
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287 return 1;
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288 }
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289 if (store && s) {
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290 return strcmp(store, s) == 0;
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291 }
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292 else {
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293 return 0;
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294 }
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295 }
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296
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297 int AgString::operator != (const AgString &s) const {
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298 if (store == s.store) {
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299 return 0;
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300 }
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diff changeset
301 if (store && s.store) {
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302 return strcmp(store, s.store) != 0;
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303 }
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304 else {
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305 return 1;
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306 }
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diff changeset
307 }
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diff changeset
308
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309 int AgString::operator != (const char *s) const {
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310 if (store == s) {
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311 return 0;
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312 }
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diff changeset
313 if (store && s) {
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314 return strcmp(store, s) != 0;
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315 }
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316 else {
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317 return 1;
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318 }
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319 }
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320
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diff changeset
321 AgString AgString::format(const char *fs, ...) {
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322 va_list ap;
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323 int n;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
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324
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325 if (fs == NULL) {
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326 return AgString();
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diff changeset
327 }
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328 //int bufLength = 3*strlen(fs);
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329 //if (bufLength < 2000) bufLength = 2000;
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330 //char *buf = new char[bufLength];
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331 char buf[2000];
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332
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333 //assert(buf != NULL);
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334
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335 va_start(ap, fs);
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336 n = vsprintf(buf, fs, ap);
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337 assert(n < 2000);
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338 va_end(ap);
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339
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340 AgString result(buf, n);
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341 //delete [] buf;
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342 return result;
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343 }
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344
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345
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346 // concatenation operators
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347
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348 AgString AgString::concat(const char *s) const {
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349 LOGSECTION("AgString::concat");
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350 LOGV(store) LCV(s);
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diff changeset
351 if (s == NULL) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
352 return *this;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
353 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
354 if (store == NULL) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
355 return AgString(s);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
356 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
357 AgString result(store, size() + strlen(s));
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
358 LOGV(result);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
359 strcat(result.pointer(), s);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
360 LOGV(result);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
361 return result;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
362 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
363
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
364 AgString AgString::concat(const AgString s) const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
365 if (s.store == NULL) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
366 return *this;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
367 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
368 if (store == NULL) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
369 return s;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
370 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
371 AgString result(store, size() + s.size());
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
372 strcat(result.pointer(), s.pointer());
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
373 return result;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
374 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
375
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
376 AgString::Cut AgString::firstCut(const char c) const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
377 LOGSECTION("AgString::firstCut(char)");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
378 if (store) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
379 char *p = strchr(store, c);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
380 LOGV(p) LCV(c);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
381 /*
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
382 int n = p ? (int)( p - store) : -1;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
383 return AgString::Cut(*this, n);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
384 */
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
385 if (p) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
386 return AgString::Cut(*this, p - store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
387 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
388 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
389 return AgString::Cut();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
390 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
391
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
392 AgString::Cut AgString::lastCut(const char c) const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
393 //LOGSECTION("lastCut");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
394 if (store) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
395 char *p = strrchr(store, c);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
396 //LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
397 //LOGV(c);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
398 //LOGV(p);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
399 int n = p ? (int) (p - store) : strlen(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
400 return AgString::Cut(*this, n);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
401 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
402 return AgString::Cut();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
403 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
404
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
405 AgString::Cut AgString::firstCut(const char *s) const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
406 LOGSECTION("firstCut(const char *)");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
407 if (store) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
408 unsigned k = strcspn(store, s);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
409 LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
410 LOGV(s);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
411 LOGV(k);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
412 if (k < size()) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
413 return AgString::Cut(*this, k);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
414 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
415 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
416 return AgString::Cut();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
417 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
418
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
419 AgString::Cut AgString::lastCut(const char *s) const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
420 //LOGSECTION("lastCut");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
421 if (store) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
422 int k = size();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
423 while (k--) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
424 if (strchr(s, store[k])) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
425 //LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
426 //LOGV(&store[k]);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
427 //LOGV(k);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
428 return AgString::Cut(*this, k);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
429 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
430 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
431 return AgString::Cut(*this, size());
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
432 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
433 return AgString::Cut();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
434 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
435
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
436 AgString::Cut::Cut(const AgString &s, const int x)
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
437 : store(s.pointer())
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
438 , index(x)
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
439 {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
440 if (store) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
441 assert((unsigned) x <= strlen(store));
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
442 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
443 lock();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
444 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
445
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
446 void AgString::Cut::lock() {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
447 if (store) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
448 (((short *) (void *)store)[-1])++;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
449 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
450 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
451
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
452 void AgString::Cut::unlock() {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
453 if (store && --(((short *) (void *) store)[-1]) <= 0) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
454 //delete [] (store - sizeof(short));
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
455 free(store - sizeof(short));
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
456 store = 0;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
457 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
458 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
459
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
460 char &AgString::Cut::character() const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
461 assert(store != 0);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
462 return store[index];
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
463 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
464
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
465 AgString AgString::Cut::leftI() const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
466 //LOGSECTION("Cut::leftI");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
467 //LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
468 //LOGV(index);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
469 if (store == 0 || index < 0) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
470 return AgString();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
471 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
472 /* Include the separator... but not if it's the null terminator. */
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
473 int pos = index;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
474 if (store[pos]) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
475 pos++;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
476 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
477 return AgString(store, pos);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
478 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
479
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
480 AgString AgString::Cut::leftX() const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
481 LOGSECTION("Cut::leftX");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
482 LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
483 LOGV(index);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
484 if (store == 0 || index <= 0) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
485 return AgString();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
486 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
487 /* Does this end up with the wrong length if store[index]==0? XXX */
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
488 return AgString(store, index);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
489 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
490
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
491 AgString AgString::Cut::rightI() const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
492 //LOGSECTION("Cut::rightI");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
493 //LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
494 //LOGV(index);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
495 if (store == 0) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
496 return AgString();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
497 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
498 if (index < 0) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
499 return AgString(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
500 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
501 return AgString(store + index);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
502 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
503
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
504 AgString AgString::Cut::rightX() const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
505 //LOGSECTION("Cut::rightX");
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
506 //LOGV(store);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
507 //LOGV(index);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
508 if (store == 0) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
509 return AgString();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
510 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
511 /* Exclude the separator... but not if it's the null terminator. */
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
512 int pos = index;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
513 if (store[pos]) {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
514 pos++;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
515 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
516 return AgString(store + pos);
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
517 }
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
518
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
519 /*
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
520 AgString AgString::Cut::insertLeft(const AgString &s) const {
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
521 AgString newString(store, strlen(store) + s.size());
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
522 char *p = newString.pointer();
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
523 p[index] = 0;
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
parents:
diff changeset
524 strcat(p, s.pointer());
13d2b8934445 Import AnaGram (near-)release tree into Mercurial.
David A. Holland
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diff changeset
525 strcat(p, store+index);
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526 return newString;
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527 }
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528
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529 AgString AgString::Cut::insertLeft(const char *s) const {
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530 AgString newString(store, strlen(store) + strlen(s));
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531 char *p = newString.pointer();
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532 p[index] = 0;
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533 strcat(p, s);
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534 strcat(p, store+index);
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535 return newString;
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536 }
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537
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538 AgString AgString::Cut::insertRight(const AgString &s) const {
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539 AgString newString(store, strlen(store) + s.size());
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540 char *p = newString.pointer();
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541 p[index+1] = 0;
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542 strcat(p, s.pointer());
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543 strcat(p, store+index+1);
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544 return newString;
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545 }
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546
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547 AgString AgString::Cut::insertRight(const char *s) const {
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548 AgString newString(store, strlen(store) + strlen(s));
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549 char *p = newString.pointer();
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550 p[index+1] = 0;
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551 strcat(p, s);
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552 strcat(p, store+index+1);
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553 return newString;
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554 }
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555
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556 AgString AgString::Cut::replace(const AgString &s) const {
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557 if (store == 0) return AgString();
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558 if (index < 0 || index > strlen(store)) return AgString(store);
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559 AgString newString(store, strlen(store) + s.size() - 1);
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560 char *p = newString.pointer();
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561 p[index] = 0;
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562 if (s.size()) strcat(p, s.pointer());
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563 strcat(p, store+index+1);
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564 return newString;
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565 }
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566
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567 AgString AgString::Cut::replace(const char *s) const {
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568 if (store == 0) return AgString();
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569 if (index < 0 || index > strlen(store)) return AgString(store);
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570 int n = s!= 0 ? strlen(s) : 0;
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571 AgString newString(store, strlen(store) + n - 1);
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572 char *p = newString.pointer();
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573 p[index] = 0;
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574 if (n) strcat(p, s);
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575 strcat(p, store+index+1);
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576 return newString;
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577 }
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578 */