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