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annotate anagram/guisupport/readprofile.cpp @ 18:562c313f14f4

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some minor updates for 2022
author David A. Holland
date Tue, 31 May 2022 02:03:50 -0400
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1 /*
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2 * AnaGram, A System for Syntax Directed Programming
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3 * Copyright 1997-2002 Parsifal Software. All Rights Reserved.
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4 * Copyright 2006 David A. Holland. All Rights Reserved.
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5 * See the file COPYING for license and usage terms.
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6 *
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7 * readprofile.cpp
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8 */
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9
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10 #include <stdio.h>
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11 #include <stdlib.h>
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12 #include <limits.h>
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13
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14 #ifdef __IBMCPP__
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15 #include <iprofile.hpp>
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16 #endif
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17
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18 #include "port.h"
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19
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20 #include "agstring.h"
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21 #include "assert.h"
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22 #include "readprofile.h"
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23 #include "textfile.h"
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24
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25 //#define INCLUDE_LOGGING
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26 #include "log.h"
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27
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28
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29 ////////////////////////////////////////////////////////////
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30
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31 #ifdef AG_ON_WINDOWS
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32
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33 /*
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34 * Store and retrieve the profile from the Windows registry.
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35 */
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36
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37 #ifdef __IBMCPP__
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38
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39 class AgProfile : public IProfile {
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40 public:
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41 AgProfile();
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42 void store(const char *key, AgString value);
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43 void retrieve(const char *key, AgString &result);
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44 };
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45
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46 AgProfile::AgProfile()
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47 : IProfile("Parsifal Software")
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48 {
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49 setDefaultApplicationName("AnaGram");
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50 }
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51
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52 void AgProfile::store(const char *key, AgString value) {
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53 addOrReplaceElementWithKey(key, IString(value.pointer()));
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54 }
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55
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56 void AgProfile::retrieve(const char *key, AgString &result) {
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57 try { result = (char *) elementWithKey(key); }
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58 catch(...) {}
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59 }
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60
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61 void AgStoreProfile(const char *key, AgString value) {
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62 LOGSECTION("AgStoreProfile");
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63 LOGV(key);
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64
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65 AgProfile p;
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66 LOGS("profile object created");
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67
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68 p.store(key, value);
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69 LOGS("store completed");
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70 }
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71
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72 AgString AgFetchProfile(const char *key) {
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73 LOGSECTION("AgFetchProfile");
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74 LOGV(key);
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75
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76 AgProfile p;
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77 LOGS("profile object created");
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78
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79 AgString result;
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80 p.retrieve(key, result);
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81 LOGS("fetch completed");
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82
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83 LOGV(result);
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84 return result;
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85 }
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86
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87 #endif /* __IBMCPP__ */
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88
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89 #endif /* AG_ON_WINDOWS */
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90
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91 ////////////////////////////////////////////////////////////
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92
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93 #ifdef AG_ON_UNIX
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94
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95 /*
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96 * Store and retrieve the profile from ~/.AnaGram.
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97 */
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98
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99 static void getdotfilepath(char *buf, size_t len) {
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100 const char *home = getenv("HOME");
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101 if (!home) {
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102 // use root directory
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103 home = "";
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104 }
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105 snprintf(buf, len, "%s/.AnaGram", home);
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106 }
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107
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108 void AgStoreProfile(const char *key, AgString value) {
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109 LOGSECTION("AgStoreProfile");
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110 LOGV(key);
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111
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112 assert(!strcmp(key, "initializationData"));
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113
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114 char path[PATH_MAX];
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115 getdotfilepath(path, sizeof(path));
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116 LOGV(path);
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117
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118 FILE *f = fopen(path, "w");
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119 if (!f) {
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120 // give up
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121 LOGS("fopen failed");
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122 return;
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123 }
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124
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125 fputs(value.pointer(), f);
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126 fclose(f);
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127 LOGS("complete");
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128 }
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129
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130 AgString AgFetchProfile(const char *key) {
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131 LOGSECTION("AgFetchProfile");
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132 LOGV(key);
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133
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134 assert(!strcmp(key, "initializationData"));
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135
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136 char path[PATH_MAX];
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137 getdotfilepath(path, sizeof(path));
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138 LOGV(path);
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139
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140 text_file tf(path);
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141 AgString result = tf.text;
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142
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143 LOGV(result);
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144 return result;
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145 }
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146
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147 #endif /* AG_ON_UNIX */