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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 969 | runge | 1 | /*************************************************************************** |
| 2 | * Copyright (C) November 30, 2008 by Mattias Runge * |
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| 3 | * mattias@runge.se * |
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| 4 | * xmlnode.cpp * |
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| 5 | * * |
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| 6 | * This program is free software; you can redistribute it and/or modify * |
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| 7 | * it under the terms of the GNU General Public License as published by * |
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| 8 | * the Free Software Foundation; either version 2 of the License, or * |
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| 9 | * (at your option) any later version. * |
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| 10 | * * |
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| 11 | * This program is distributed in the hope that it will be useful, * |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
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| 14 | * GNU General Public License for more details. * |
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| 15 | * * |
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| 16 | * You should have received a copy of the GNU General Public License * |
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| 17 | * along with this program; if not, write to the * |
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| 18 | * Free Software Foundation, Inc., * |
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| 19 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * |
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| 20 | ***************************************************************************/ |
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| 21 | |||
| 22 | #include "xmlnode.h" |
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| 23 | |||
| 24 | void XmlNode::load(string filename) |
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| 25 | { |
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| 26 | parse(file_get_contents(filename)); |
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| 27 | } |
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| 28 | |||
| 29 | void XmlNode::parse(string xmlData) |
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| 30 | { |
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| 31 | char c; |
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| 32 | int position = 0; |
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| 33 | while (position < xmlData.length()) |
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| 34 | { |
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| 35 | c = xmlData.at(position); |
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| 36 | |||
| 37 | switch (c) |
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| 38 | { |
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| 39 | case '<': |
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| 40 | position = parseTag(xmlData, position); |
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| 41 | break; |
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| 42 | } |
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| 43 | position++; |
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| 44 | } |
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| 45 | } |
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| 46 | |||
| 47 | int XmlNode::parseTag(string xmlData, int position) |
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| 48 | { |
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| 49 | if (xmlData.at(position) != '<') |
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| 50 | throw new XmlException("Did not find < as expected. Character " + itos(position)); |
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| 51 | |||
| 52 | position++; |
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| 53 | |||
| 54 | int endPosition = xmlData.find('>', position); |
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| 55 | |||
| 56 | if (xmlData.at(position) == '?' || xmlData.at(position) == '!' || xmlData.at(position) == '/') |
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| 57 | { |
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| 58 | return endPosition; |
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| 59 | } |
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| 60 | |||
| 997 | runge | 61 | string tagString; |
| 969 | runge | 62 | |
| 997 | runge | 63 | try |
| 64 | { |
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| 65 | tagString = xmlData.substr(position, endPosition-position); |
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| 66 | } |
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| 67 | catch (std::out_of_range& e) |
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| 68 | { |
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| 69 | cout << "DEBUG: parseTag exception: " << e.what() << "\n"; |
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| 70 | cout << "DEBUG: A xmlData=" << xmlData << " :: position=" << position << " :: endPosition=" << endPosition << endl; |
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| 71 | } |
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| 72 | |||
| 969 | runge | 73 | tagString = trim(tagString); |
| 74 | tagString = trim(tagString, '\n'); |
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| 75 | tagString = trim(tagString); |
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| 76 | tagString += " "; |
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| 77 | |||
| 78 | bool foundEnd = false; |
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| 79 | bool foundTag = false; |
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| 80 | string buffer; |
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| 81 | int pos = 0; |
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| 82 | char c; |
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| 83 | int s, e; |
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| 84 | |||
| 85 | while (pos < tagString.length()) |
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| 86 | { |
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| 87 | c = tagString.at(pos); |
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| 88 | |||
| 89 | switch (c) |
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| 90 | { |
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| 91 | case ' ': |
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| 92 | if (!foundTag) |
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| 93 | { |
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| 94 | myTagName = buffer; |
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| 95 | buffer = ""; |
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| 96 | //cout << "Found tag: " << myTagName << endl; |
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| 97 | foundTag = true; |
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| 98 | } |
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| 99 | break; |
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| 100 | |||
| 101 | case '/': |
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| 102 | foundEnd = true; |
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| 103 | break; |
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| 104 | |||
| 105 | case '=': |
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| 106 | s = tagString.find('"', pos)+1; |
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| 107 | e = tagString.find('"', s); |
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| 108 | |||
| 997 | runge | 109 | try |
| 110 | { |
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| 111 | myAttributes[buffer] = tagString.substr(s, e-s); |
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| 112 | } |
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| 113 | catch (std::out_of_range& ex) |
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| 114 | { |
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| 115 | cout << "DEBUG: parseTag exception: " << ex.what() << "\n"; |
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| 116 | cout << "DEBUG: B tagString=" << tagString << " :: s=" << s << " :: e=" << e << endl; |
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| 117 | continue; |
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| 118 | } |
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| 119 | |||
| 120 | |||
| 969 | runge | 121 | //cout << "Found attribute: " << buffer << " = " << myAttributes[buffer] << endl; |
| 122 | pos = e; |
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| 123 | buffer = ""; |
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| 124 | break; |
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| 125 | |||
| 126 | default: |
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| 127 | buffer += c; |
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| 128 | break; |
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| 129 | } |
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| 130 | pos++; |
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| 131 | } |
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| 132 | |||
| 133 | position = endPosition; |
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| 134 | |||
| 135 | if (!foundEnd) |
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| 136 | { |
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| 137 | while (position < xmlData.length()) |
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| 138 | { |
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| 139 | c = xmlData.at(position); |
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| 140 | |||
| 141 | switch (c) |
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| 142 | { |
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| 143 | case '<': |
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| 144 | if (xmlData.at(position+1) == '/') |
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| 145 | { |
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| 146 | position += 2; |
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| 147 | endPosition = xmlData.find('>', position); |
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| 148 | |||
| 997 | runge | 149 | try |
| 969 | runge | 150 | { |
| 997 | runge | 151 | if (myTagName.compare(xmlData.substr(position, endPosition-position)) == 0) |
| 152 | { |
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| 153 | //cout << "Found end tag: " << myTagName << endl; |
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| 154 | return endPosition; |
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| 155 | } |
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| 156 | else |
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| 157 | { |
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| 158 | throw new XmlException("Invalid end tag found. " + xmlData.substr(position, endPosition-position) + "::" + myTagName); |
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| 159 | } |
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| 969 | runge | 160 | } |
| 997 | runge | 161 | catch (std::out_of_range& e) |
| 969 | runge | 162 | { |
| 997 | runge | 163 | cout << "DEBUG: parseTag exception: " << e.what() << "\n"; |
| 164 | cout << "DEBUG: C xmlData=" << xmlData << " :: position=" << position << " :: endPosition=" << endPosition << endl; |
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| 165 | continue; |
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| 969 | runge | 166 | } |
| 997 | runge | 167 | |
| 168 | |||
| 969 | runge | 169 | } |
| 170 | |||
| 171 | XmlNode subNode; |
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| 172 | position = subNode.parseTag(xmlData, position); |
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| 173 | myChildren.push_back(subNode); |
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| 174 | break; |
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| 175 | } |
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| 176 | |||
| 177 | position++; |
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| 178 | } |
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| 179 | } |
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| 180 | |||
| 181 | return position; |
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| 182 | } |
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| 183 | |||
| 184 | XmlNode XmlNode::findChild(string tagName) |
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| 185 | { |
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| 186 | for (int n = 0; n < myChildren.size(); n++) |
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| 187 | { |
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| 188 | if (myChildren[n].getTagName().compare(tagName) == 0) |
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| 189 | return myChildren[n]; |
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| 190 | } |
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| 191 | |||
| 192 | XmlNode defaultNode; |
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| 193 | |||
| 194 | return defaultNode; |
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| 195 | } |
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| 196 | |||
| 197 | string XmlNode::getAttributeValue(string attributeName) |
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| 198 | { |
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| 199 | map<string, string>::const_iterator iterator = myAttributes.find(attributeName); |
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| 200 | |||
| 201 | if (iterator == myAttributes.end()) |
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| 202 | return NULL; |
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| 203 | |||
| 204 | return iterator->second; |
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| 205 | } |