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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 | |||
| 61 | string tagString = xmlData.substr(position, endPosition-position); |
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| 62 | |||
| 63 | tagString = trim(tagString); |
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| 64 | tagString = trim(tagString, '\n'); |
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| 65 | tagString = trim(tagString); |
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| 66 | tagString += " "; |
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| 67 | |||
| 68 | bool foundEnd = false; |
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| 69 | bool foundTag = false; |
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| 70 | string buffer; |
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| 71 | int pos = 0; |
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| 72 | char c; |
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| 73 | int s, e; |
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| 74 | |||
| 75 | while (pos < tagString.length()) |
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| 76 | { |
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| 77 | c = tagString.at(pos); |
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| 78 | |||
| 79 | switch (c) |
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| 80 | { |
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| 81 | case ' ': |
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| 82 | if (!foundTag) |
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| 83 | { |
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| 84 | myTagName = buffer; |
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| 85 | buffer = ""; |
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| 86 | //cout << "Found tag: " << myTagName << endl; |
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| 87 | foundTag = true; |
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| 88 | } |
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| 89 | break; |
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| 90 | |||
| 91 | case '/': |
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| 92 | foundEnd = true; |
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| 93 | break; |
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| 94 | |||
| 95 | case '=': |
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| 96 | s = tagString.find('"', pos)+1; |
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| 97 | e = tagString.find('"', s); |
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| 98 | |||
| 99 | myAttributes[buffer] = tagString.substr(s, e-s); |
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| 100 | //cout << "Found attribute: " << buffer << " = " << myAttributes[buffer] << endl; |
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| 101 | pos = e; |
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| 102 | buffer = ""; |
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| 103 | break; |
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| 104 | |||
| 105 | default: |
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| 106 | buffer += c; |
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| 107 | break; |
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| 108 | } |
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| 109 | pos++; |
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| 110 | } |
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| 111 | |||
| 112 | position = endPosition; |
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| 113 | |||
| 114 | if (!foundEnd) |
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| 115 | { |
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| 116 | while (position < xmlData.length()) |
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| 117 | { |
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| 118 | c = xmlData.at(position); |
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| 119 | |||
| 120 | switch (c) |
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| 121 | { |
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| 122 | case '<': |
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| 123 | if (xmlData.at(position+1) == '/') |
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| 124 | { |
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| 125 | position += 2; |
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| 126 | endPosition = xmlData.find('>', position); |
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| 127 | |||
| 128 | if (myTagName.compare(xmlData.substr(position, endPosition-position)) == 0) |
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| 129 | { |
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| 130 | //cout << "Found end tag: " << myTagName << endl; |
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| 131 | return endPosition; |
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| 132 | } |
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| 133 | else |
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| 134 | { |
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| 135 | throw new XmlException("Invalid end tag found. " + xmlData.substr(position, endPosition-position) + "::" + myTagName); |
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| 136 | } |
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| 137 | } |
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| 138 | |||
| 139 | XmlNode subNode; |
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| 140 | position = subNode.parseTag(xmlData, position); |
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| 141 | myChildren.push_back(subNode); |
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| 142 | break; |
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| 143 | } |
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| 144 | |||
| 145 | position++; |
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| 146 | } |
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| 147 | } |
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| 148 | |||
| 149 | return position; |
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| 150 | } |
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| 151 | |||
| 152 | XmlNode XmlNode::findChild(string tagName) |
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| 153 | { |
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| 154 | for (int n = 0; n < myChildren.size(); n++) |
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| 155 | { |
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| 156 | if (myChildren[n].getTagName().compare(tagName) == 0) |
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| 157 | return myChildren[n]; |
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| 158 | } |
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| 159 | |||
| 160 | XmlNode defaultNode; |
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| 161 | |||
| 162 | return defaultNode; |
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| 163 | } |
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| 164 | |||
| 165 | string XmlNode::getAttributeValue(string attributeName) |
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| 166 | { |
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| 167 | map<string, string>::const_iterator iterator = myAttributes.find(attributeName); |
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| 168 | |||
| 169 | if (iterator == myAttributes.end()) |
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| 170 | return NULL; |
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| 171 | |||
| 172 | return iterator->second; |
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| 173 | } |