Wed, 30 May 2018 16:51:52 +0200
parse_csv_taglist() now skips empty tags
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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 2018 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 <stdio.h> |
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30 | #include <stdlib.h> |
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31 | |
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32 | #include <ucx/string.h> |
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33 | #include <ucx/utils.h> |
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34 | |
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35 | #include "libxattr.h" |
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36 | |
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37 | #include "tags.h" |
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38 | |
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39 | #ifdef __APPLE__ |
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40 | #include <CoreFoundation/CoreFoundation.h> |
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41 | #endif |
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42 | |
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43 | void free_dav_tag(DavTag* tag) { |
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44 | free(tag->name); |
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45 | free(tag->color); |
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46 | free(tag); |
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47 | } |
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48 | |
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49 | int compare_tagname(DavTag* left, DavTag* right, void* ignorecase) { |
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50 | sstr_t leftname = sstr(left->name); |
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51 | sstr_t rightname = sstr(right->name); |
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52 | if (ignorecase && *((int*) ignorecase)) { |
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53 | return sstrcasecmp(leftname, rightname); |
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54 | } else { |
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55 | return sstrcmp(leftname, rightname); |
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56 | } |
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57 | } |
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58 | |
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59 | UcxList* parse_text_taglist(const char *buf, size_t length) { |
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60 | UcxList *tags = NULL; |
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61 | |
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62 | int line_start = 0; |
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63 | for(int i=0;i<length;i++) { |
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64 | if(buf[i] == '\n' || i == length-1) { |
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65 | sstr_t line = sstrtrim(sstrn((char*)buf + line_start, i - line_start)); |
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66 | if(line.length > 0) { |
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67 | DavTag *tag = calloc(1, sizeof(DavTag)); |
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68 | tag->name = sstrdup(line).ptr; |
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69 | tag->color = NULL; |
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70 | tags = ucx_list_append(tags, tag); |
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71 | } |
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72 | line_start = i+1; |
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73 | } |
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74 | } |
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75 | |
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76 | return tags; |
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77 | } |
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78 | |
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79 | UcxBuffer* create_text_taglist(UcxList *tags) { |
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80 | if(!tags) { |
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81 | return NULL; |
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82 | } |
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83 | |
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84 | UcxBuffer *buf = ucx_buffer_new(NULL, 128, UCX_BUFFER_AUTOEXTEND); |
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85 | UCX_FOREACH(elm, tags) { |
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86 | DavTag *tag = elm->data; |
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87 | ucx_bprintf(buf, "%s\n", tag->name); |
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88 | } |
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89 | return buf; |
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90 | } |
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91 | |
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92 | |
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93 | UcxList* parse_csv_taglist(const char *buf, size_t length) { |
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94 | UcxList *taglist = NULL; |
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95 | |
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96 | sstr_t str = sstrn((char*)buf, length); |
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97 | ssize_t count = 0; |
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98 | sstr_t *tags = sstrsplit(str, S(","), &count); |
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99 | for(int i=0;i<count;i++) { |
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100 | sstr_t trimmed_tag = sstrtrim(tags[i]); |
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101 | if (trimmed_tag.length > 0) { |
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102 | DavTag *tag = malloc(sizeof(DavTag)); |
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103 | tag->name = sstrdup(trimmed_tag).ptr; |
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104 | tag->color = NULL; |
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105 | taglist = ucx_list_append(taglist, tag); |
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106 | } |
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107 | free(tags[i].ptr); |
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108 | } |
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109 | if(tags) { |
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110 | free(tags); |
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111 | } |
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112 | return taglist; |
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113 | } |
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114 | |
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115 | UcxBuffer* create_csv_taglist(UcxList *tags) { |
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116 | UcxBuffer *buf = ucx_buffer_new(NULL, 128, UCX_BUFFER_AUTOEXTEND); |
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117 | int insertsep = 0; |
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118 | UCX_FOREACH(elm, tags) { |
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119 | DavTag *tag = elm->data; |
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120 | if(insertsep) { |
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121 | ucx_buffer_putc(buf, ','); |
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122 | } |
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123 | ucx_buffer_puts(buf, tag->name); |
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124 | insertsep = 1; |
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125 | } |
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126 | return buf; |
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127 | } |
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128 | |
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129 | |
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130 | static DavTag* parse_xml_dav_tag(DavXmlNode *node) { |
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131 | char *name = NULL; |
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132 | |
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133 | DavXmlNode *c = node->children; |
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134 | while(c) { |
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135 | if(c->type == DAV_XML_ELEMENT) { |
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136 | char *value = dav_xml_getstring(c->children); |
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137 | if(value) { |
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138 | if(!strcmp(c->namespace, DAV_NS)) { |
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139 | if(!strcmp(c->name, "name")) { |
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140 | char *value = dav_xml_getstring(c->children); |
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141 | if(value) { |
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142 | name = value; |
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143 | } |
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144 | } |
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145 | // TODO: color, ... |
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146 | } |
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147 | } |
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148 | } |
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149 | c = c->next; |
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150 | } |
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151 | |
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152 | DavTag *tag = NULL; |
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153 | if(name) { |
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154 | tag = malloc(sizeof(DavTag)); |
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155 | tag->name = strdup(name); |
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156 | tag->color = NULL; |
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157 | } |
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158 | return tag; |
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159 | } |
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160 | |
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161 | UcxList* parse_dav_xml_taglist(DavXmlNode *taglistnode) { |
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162 | UcxList *tags = NULL; |
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163 | |
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164 | DavXmlNode *node = taglistnode; |
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165 | while(node) { |
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166 | if(node->type == DAV_XML_ELEMENT) { |
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167 | if(!strcmp(node->namespace, DAV_NS) && !strcmp(node->name, "tag")) { |
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168 | DavTag *tag = parse_xml_dav_tag(node); |
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169 | if(tag) { |
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170 | tags = ucx_list_append(tags, tag); |
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171 | } |
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172 | } |
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173 | } |
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174 | node = node->next; |
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175 | } |
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176 | |
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177 | return tags; |
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178 | } |
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179 | |
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180 | DavXmlNode* create_xml_taglist(UcxList *tags) { |
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181 | DavXmlNode *tag1 = NULL; |
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182 | DavXmlNode *lasttag = NULL; |
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183 | UCX_FOREACH(elm, tags) { |
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184 | DavTag *tag = elm->data; |
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185 | |
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186 | DavXmlNode *tagelm = dav_xml_createnode(DAV_NS, "tag"); |
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187 | DavXmlNode *tagname = dav_xml_createnode_with_text(DAV_NS, "name", tag->name); |
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188 | // TODO: color |
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189 | tagelm->children = tagname; |
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190 | |
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191 | if(lasttag) { |
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192 | lasttag->next = tagelm; |
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193 | tagelm->prev = lasttag; |
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194 | } else { |
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195 | tag1 = tagelm; |
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196 | } |
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197 | lasttag = tagelm; |
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198 | } |
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199 | return tag1; |
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200 | } |
363
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201 | |
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202 | |
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203 | #ifdef __APPLE__ |
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204 | static DavTag* tagstr2davtag(const char *str) { |
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205 | const char *name = str; |
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206 | const char *color = NULL; |
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207 | size_t len = strlen(str); |
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208 | size_t namelen = len; |
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209 | |
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210 | if(len == 0) { |
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211 | return NULL; |
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212 | } |
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213 | |
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214 | // start with 1 because the first char should not be a linebreak |
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215 | for(int i=1;i<len;i++) { |
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216 | if(str[i] == '\n') { |
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217 | if(!color) { |
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218 | color = str + i + 1; |
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219 | namelen = i; |
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220 | } |
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221 | } |
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222 | } |
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223 | int colorlen = len - namelen - 1; |
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224 | |
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225 | DavTag *tag = malloc(sizeof(DavTag)); |
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226 | tag->name = malloc(namelen + 1); |
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227 | memcpy(tag->name, name, namelen); |
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228 | tag->name[namelen] = 0; |
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229 | if(colorlen > 0) { |
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230 | tag->color = malloc(colorlen + 1); |
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231 | memcpy(tag->color, color, colorlen); |
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232 | tag->color[colorlen] = 0; |
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233 | } else { |
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234 | tag->color = NULL; |
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235 | } |
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236 | |
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237 | return tag; |
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238 | } |
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239 | |
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240 | UcxList* parse_macos_taglist(const char *buf, size_t length) { |
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241 | UcxList *taglist = NULL; |
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242 | |
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243 | CFDataRef data = CFDataCreateWithBytesNoCopy( |
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244 | kCFAllocatorDefault, |
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245 | (const UInt8*)buf, |
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246 | length, |
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247 | kCFAllocatorNull); |
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248 | CFPropertyListRef propertylist = CFPropertyListCreateWithData(kCFAllocatorDefault, data, 0, NULL, NULL); |
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249 | CFArrayRef array = propertylist; |
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250 | int count = CFArrayGetCount(array); |
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251 | for(int i=0;i<count;i++) { |
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252 | CFStringRef str = CFArrayGetValueAtIndex(array, i); |
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253 | int slen = CFStringGetLength(str); |
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254 | size_t cstrbuflen = slen * 4 + 4; |
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255 | char *cstr = malloc(cstrbuflen); |
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256 | if(CFStringGetCString(str, cstr, cstrbuflen, kCFStringEncodingUTF8)) { |
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257 | DavTag *tag = tagstr2davtag(cstr); |
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258 | if(tag) { |
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259 | taglist = ucx_list_append(taglist, tag); |
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260 | } |
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261 | } |
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262 | free(cstr); |
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263 | } |
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264 | |
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265 | CFRelease(propertylist); |
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266 | CFRelease(data); |
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267 | |
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268 | return taglist; |
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269 | } |
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270 | |
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271 | UcxBuffer* create_macos_taglist(UcxList *tags) { |
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272 | size_t count = ucx_list_size(tags); |
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273 | if(count == 0) { |
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274 | return NULL; |
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275 | } |
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276 | |
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277 | CFStringRef *strings = calloc(sizeof(CFStringRef), count); |
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278 | int i = 0; |
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279 | UCX_FOREACH(elm, tags) { |
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280 | DavTag *tag = elm->data; |
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281 | CFStringRef str = NULL; |
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282 | if(tag->color) { |
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283 | sstr_t s = sstrcat(3, sstr(tag->name), S("\n"), sstr(tag->color)); |
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284 | str = CFStringCreateWithCString(kCFAllocatorDefault, s.ptr, kCFStringEncodingUTF8); |
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285 | free(s.ptr); |
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286 | } else { |
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287 | str = CFStringCreateWithCString(kCFAllocatorDefault, tag->name, kCFStringEncodingUTF8); |
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288 | } |
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289 | strings[i] = str; |
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290 | i++; |
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291 | } |
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292 | |
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293 | CFPropertyListRef array = CFArrayCreate(kCFAllocatorDefault, (const void**)strings, count, &kCFTypeArrayCallBacks); |
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294 | CFDataRef data = CFPropertyListCreateData(kCFAllocatorDefault, array, kCFPropertyListBinaryFormat_v1_0, 0, NULL); |
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295 | |
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296 | UcxBuffer *buf = NULL; |
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297 | if(data) { |
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298 | int datalen = CFDataGetLength(data); |
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299 | CFRange range; |
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300 | range.location = 0; |
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301 | range.length = datalen; |
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302 | buf = ucx_buffer_new(NULL, datalen, 0); |
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303 | CFDataGetBytes(data, range, (UInt8*)buf->space); |
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304 | buf->size = datalen; |
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305 | CFRelease(data); |
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306 | } |
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307 | |
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308 | for(int i=0;i<count;i++) { |
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309 | CFRelease(strings[i]); |
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310 | } |
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311 | CFRelease(array); |
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312 | |
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313 | return buf; |
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314 | } |
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315 | |
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316 | #else |
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317 | UcxList* parse_macos_taglist(const char *buf, size_t length) { |
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318 | fprintf(stderr, "Error: macos tags not supported on this platform.\n"); |
363
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319 | return NULL; |
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320 | } |
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321 | UcxBuffer* create_macos_taglist(UcxList *tags) { |
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322 | fprintf(stderr, "Error: macos tags not supported on this platform.\n"); |
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323 | return NULL; |
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324 | } |
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325 | #endif |
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326 |