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Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 14 | </head> |
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| 18 | <a href="http://www.gnome.org/"><img src="smallfootonly.gif" alt="Gnome Logo"></a><a href="http://www.w3.org/Status"><img src="w3c.png" alt="W3C Logo"></a><a href="http://www.redhat.com/"><img src="redhat.gif" alt="Red Hat Logo"></a> |
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| 21 | <h1>The XML C library for Gnome</h1> |
| 22 | <h2>FAQ</h2> |
| 23 | </td></tr></table></td></tr></table></td> |
| 24 | </tr></table> |
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| 61 | <tr><td colspan="1" bgcolor="#eecfa1" align="center"><center><b>Related links</b></center></td></tr> |
| 62 | <tr><td bgcolor="#fffacd"><ul style="margin-left: -2pt"> |
| 63 | <li><a href="http://mail.gnome.org/archives/xml/">Mail archive</a></li> |
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| 66 | <li><a href="ftp://xmlsoft.org/">FTP</a></li> |
| 67 | <li><a href="http://www.fh-frankfurt.de/~igor/projects/libxml/">Windows binaries</a></li> |
| 68 | <li><a href="http://pages.eidosnet.co.uk/~garypen/libxml/">Solaris binaries</a></li> |
| 69 | </ul></td></tr> |
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Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 73 | <p>Table of Content:</p> |
| 74 | <ul> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 75 | <li><a href="FAQ.html#Licence">Licence(s)</a></li> |
| 76 | <li><a href="FAQ.html#Installati">Installation</a></li> |
| 77 | <li><a href="FAQ.html#Compilatio">Compilation</a></li> |
| 78 | <li><a href="FAQ.html#Developer">Developer corner</a></li> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 79 | </ul> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 80 | <h3> |
| 81 | <a name="Licence">Licence</a>(s)</h3> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 82 | <ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 83 | <li> |
| 84 | <em>Licensing Terms for libxml</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 85 | <p>libxml is released under 2 (compatible) licences:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 86 | <ul> |
| 87 | <li>the <a href="http://www.gnu.org/copyleft/lgpl.html">LGPL</a>: GNU |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 88 | Library General Public License</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 89 | <li>the <a href="http://www.w3.org/Consortium/Legal/copyright-software-19980720.html">W3C |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 90 | IPR</a>: very similar to the XWindow licence</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 91 | </ul> |
| 92 | </li> |
| 93 | <li> |
| 94 | <em>Can I embed libxml in a proprietary application ?</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 95 | <p>Yes. The W3C IPR allows you to also keep proprietary the changes you |
| 96 | made to libxml, but it would be graceful to provide back bugfixes and |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 97 | improvements as patches for possible incorporation in the main |
| 98 | development tree</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 99 | </li> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 100 | </ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 101 | <h3><a name="Installati">Installation</a></h3> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 102 | <ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 103 | <li>Unless you are forced to because your application links with a Gnome |
Daniel Veillard | e0c1d72 | 2001-03-21 10:28:36 +0000 | [diff] [blame] | 104 | library requiring it, <strong><span style="background-color: #FF0000">Do |
| 105 | Not Use libxml1</span></strong>, use libxml2</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 106 | <li> |
| 107 | <em>Where can I get libxml</em> |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 108 | ? |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 109 | <p>The original distribution comes from <a href="ftp://rpmfind.net/pub/libxml/">rpmfind.net</a> or <a href="ftp://ftp.gnome.org/pub/GNOME/stable/sources/libxml/">gnome.org</a> |
| 110 | </p> |
| 111 | <p>Most linux and Bsd distribution includes libxml, this is probably the |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 112 | safer way for end-users</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 113 | <p>David Doolin provides precompiled Windows versions at <a href="http://www.ce.berkeley.edu/~doolin/code/libxmlwin32/ ">http://www.ce.berkeley.edu/~doolin/code/libxmlwin32/</a> |
| 114 | </p> |
| 115 | </li> |
| 116 | <li> |
| 117 | <em>I see libxml and libxml2 releases, which one should I install ?</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 118 | <ul> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 119 | <li>If you are not concerned by any existing backward compatibility |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 120 | with existing application, install libxml2 only</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 121 | <li>If you are not doing development, you can safely install both. |
| 122 | usually the packages <a href="http://rpmfind.net/linux/RPM/libxml.html">libxml</a> and <a href="http://rpmfind.net/linux/RPM/libxml2.html">libxml2</a> are |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 123 | compatible (this is not the case for development packages)</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 124 | <li>If you are a developer and your system provides separate packaging |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 125 | for shared libraries and the development components, it is possible |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 126 | to install libxml and libxml2, and also <a href="http://rpmfind.net/linux/RPM/libxml-devel.html">libxml-devel</a> |
| 127 | and <a href="http://rpmfind.net/linux/RPM/libxml2-devel.html">libxml2-devel</a> |
Daniel Veillard | 480363b | 2001-03-16 22:04:15 +0000 | [diff] [blame] | 128 | too for libxml2 >= 2.3.0</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 129 | <li>If you are developing a new application, please develop against |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 130 | libxml2(-devel)</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 131 | </ul> |
| 132 | </li> |
| 133 | <li> |
| 134 | <em>I can't install the libxml package it conflicts with libxml0</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 135 | <p>You probably have an old libxml0 package used to provide the shared |
| 136 | library for libxml.so.0, you can probably safely remove it. Anyway the |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 137 | libxml packages provided on <a href="ftp://rpmfind.net/pub/libxml/">rpmfind.net</a> provides |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 138 | libxml.so.0</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 139 | </li> |
| 140 | <li> |
| 141 | <em>I can't install the libxml(2) RPM package due to failed |
Daniel Veillard | c654d60 | 2001-05-01 12:42:26 +0000 | [diff] [blame] | 142 | dependancies</em> |
| 143 | <p>The most generic solution is to refetch the latest src.rpm , and |
| 144 | rebuild it locally with</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 145 | <p><code>rpm --rebuild libxml(2)-xxx.src.rpm</code></p> |
| 146 | <p>if everything goes well it will generate two binary rpm (one providing |
Daniel Veillard | c654d60 | 2001-05-01 12:42:26 +0000 | [diff] [blame] | 147 | the shared libs and xmllint, and the other one, the -devel package |
| 148 | providing includes, static libraries and scripts needed to build |
| 149 | applications with libxml(2)) that you can install locally.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 150 | </li> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 151 | </ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 152 | <h3><a name="Compilatio">Compilation</a></h3> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 153 | <ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 154 | <li> |
| 155 | <em>What is the process to compile libxml ?</em> |
| 156 | <p>As most UNIX libraries libxml follows the "standard":</p> |
| 157 | <p><code>gunzip -c xxx.tar.gz | tar xvf -</code></p> |
| 158 | <p><code>cd libxml-xxxx</code></p> |
| 159 | <p><code>./configure --help</code></p> |
| 160 | <p>to see the options, then the compilation/installation proper</p> |
| 161 | <p><code>./configure [possible options]</code></p> |
| 162 | <p><code>make</code></p> |
| 163 | <p><code>make install</code></p> |
| 164 | <p>At that point you may have to rerun ldconfig or similar utility to |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 165 | update your list of installed shared libs.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 166 | </li> |
| 167 | <li> |
| 168 | <em>What other libraries are needed to compile/install libxml ?</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 169 | <p>Libxml does not requires any other library, the normal C ANSI API |
| 170 | should be sufficient (please report any violation to this rule you may |
| 171 | find).</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 172 | <p>However if found at configuration time libxml will detect and use the |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 173 | following libs:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 174 | <ul> |
| 175 | <li> |
| 176 | <a href="http://www.info-zip.org/pub/infozip/zlib/">libz</a> |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 177 | : a highly portable and available widely compression library</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 178 | <li>iconv: a powerful character encoding conversion library. It's |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 179 | included by default on recent glibc libraries, so it doesn't need to |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 180 | be installed specifically on linux. It seems it's now <a href="http://www.opennc.org/onlinepubs/7908799/xsh/iconv.html">part |
| 181 | of the official UNIX</a> specification. Here is one <a href="http://clisp.cons.org/~haible/packages-libiconv.html">implementation |
| 182 | of the library</a> which source can be found <a href="ftp://ftp.ilog.fr/pub/Users/haible/gnu/">here</a>.</li> |
| 183 | </ul> |
| 184 | </li> |
| 185 | <li> |
| 186 | <em>libxml does not compile with HP-UX's optional ANSI-C compiler</em> |
| 187 | <p>this is due to macro limitations. Try to add " -Wp,-H16800 -Ae" to the |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 188 | CFLAGS</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 189 | <p>you can also install and use gcc instead or use a precompiled version |
| 190 | of libxml, both available from the <a href="http://hpux.cae.wisc.edu/hppd/auto/summary_all.html">HP-UX Porting |
| 191 | and Archive Centre</a> |
| 192 | </p> |
| 193 | </li> |
| 194 | <li> |
| 195 | <em>make check fails on some platforms</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 196 | <p>Sometime the regression tests results don't completely match the value |
| 197 | produced by the parser, and the makefile uses diff to print the delta. On |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 198 | some platforms the diff return breaks the compilation process, if the |
| 199 | diff is small this is probably not a serious problem</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 200 | </li> |
| 201 | <li> |
| 202 | <em>I use the CVS version and there is no configure script</em> |
Daniel Veillard | 6761eee | 2001-06-11 10:29:38 +0000 | [diff] [blame] | 203 | <p>The configure (and other Makefiles) are generated. Use the autogen.sh |
| 204 | script to regenerate the configure and Makefiles, like:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 205 | <p><code>./autogen.sh --prefix=/usr --disable-shared</code></p> |
| 206 | </li> |
| 207 | <li> |
| 208 | <em>I have troubles when running make tests with gcc-3.0</em> |
Daniel Veillard | 7b06bcb | 2001-06-22 16:03:51 +0000 | [diff] [blame] | 209 | <p>It seems the initial release of gcc-3.0 has a problem with the |
| 210 | optimizer which miscompiles the URI module. Please use another |
| 211 | compiler</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 212 | </li> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 213 | </ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 214 | <h3> |
| 215 | <a name="Developer">Developer</a> corner</h3> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 216 | <ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 217 | <li> |
| 218 | <em>xmlDocDump() generates output on one line</em> |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 219 | <p>libxml will not <strong>invent</strong> spaces in the content of a |
| 220 | document since <strong>all spaces in the content of a document are |
| 221 | significant</strong>. If you build a tree from the API and want |
| 222 | indentation:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 223 | <ol> |
| 224 | <li>the correct way is to generate those yourself too</li> |
| 225 | <li>the dangerous way is to ask libxml to add those blanks to your |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 226 | content <strong>modifying the content of your document in the |
| 227 | process</strong>. The result may not be what you expect. There is |
| 228 | <strong>NO</strong> way to guarantee that such a modification won't |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 229 | impact other part of the content of your document. See <a href="http://xmlsoft.org/html/libxml-parser.html#XMLKEEPBLANKSDEFAULT">xmlKeepBlanksDefault |
| 230 | ()</a> and <a href="http://xmlsoft.org/html/libxml-tree.html#XMLSAVEFORMATFILE">xmlSaveFormatFile |
| 231 | ()</a> |
| 232 | </li> |
| 233 | </ol> |
| 234 | </li> |
| 235 | <li>Extra nodes in the document: |
Daniel Veillard | 62bccd5 | 2001-02-10 09:40:10 +0000 | [diff] [blame] | 236 | <p><em>For a XML file as below:</em></p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 237 | <pre><?xml version="1.0"?> |
| 238 | <PLAN xmlns="http://www.argus.ca/autotest/1.0/"> |
| 239 | <NODE CommFlag="0"/> |
| 240 | <NODE CommFlag="1"/> |
Daniel Veillard | 62bccd5 | 2001-02-10 09:40:10 +0000 | [diff] [blame] | 241 | </PLAN></pre> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 242 | <p><em>after parsing it with the function |
Daniel Veillard | 480363b | 2001-03-16 22:04:15 +0000 | [diff] [blame] | 243 | pxmlDoc=xmlParseFile(...);</em></p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 244 | <p><em>I want to the get the content of the first node (node with the |
| 245 | CommFlag="0")</em></p> |
| 246 | <p><em>so I did it as following;</em></p> |
| 247 | <pre>xmlNodePtr pode; |
Daniel Veillard | 62bccd5 | 2001-02-10 09:40:10 +0000 | [diff] [blame] | 248 | pnode=pxmlDoc->children->children;</pre> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 249 | <p><em>but it does not work. If I change it to</em></p> |
| 250 | <pre>pnode=pxmlDoc->children->children->next;</pre> |
| 251 | <p><em>then it works. Can someone explain it to me.</em></p> |
| 252 | <p> |
| 253 | <p>In XML all characters in the content of the document are significant |
Daniel Veillard | 7f41b3e | 2001-02-10 09:35:37 +0000 | [diff] [blame] | 254 | <strong>including blanks and formatting line breaks</strong>.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 255 | <p>The extra nodes you are wondering about are just that, text nodes with |
Daniel Veillard | 7f41b3e | 2001-02-10 09:35:37 +0000 | [diff] [blame] | 256 | the formatting spaces wich are part of the document but that people tend |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 257 | to forget. There is a function <a href="http://xmlsoft.org/html/libxml-parser.html">xmlKeepBlanksDefault |
Daniel Veillard | 7f41b3e | 2001-02-10 09:35:37 +0000 | [diff] [blame] | 258 | ()</a> to remove those at parse time, but that's an heuristic, and its |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 259 | use should be limited to case where you are sure there is no |
| 260 | mixed-content in the document.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 261 | </li> |
| 262 | <li> |
| 263 | <em>I get compilation errors of existing code like when accessing |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 264 | <strong>root</strong> or <strong>childs fields</strong> of nodes</em> |
Daniel Veillard | 3f3b4f3 | 2001-03-13 15:12:39 +0000 | [diff] [blame] | 265 | <p>You are compiling code developed for libxml version 1 and using a |
| 266 | libxml2 development environment. Either switch back to libxml v1 devel or |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 267 | even better fix the code to compile with libxml2 (or both) by <a href="upgrade.html">following the instructions</a>.</p> |
| 268 | </li> |
| 269 | <li> |
| 270 | <em>I get compilation errors about non existing |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 271 | <strong>xmlRootNode</strong> or <strong>xmlChildrenNode</strong> |
| 272 | fields</em> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 273 | <p>The source code you are using has been <a href="upgrade.html">upgraded</a> to be able to compile with both libxml |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 274 | and libxml2, but you need to install a more recent version: |
| 275 | libxml(-devel) >= 1.8.8 or libxml2(-devel) >= 2.1.0</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 276 | </li> |
| 277 | <li> |
| 278 | <em>XPath implementation looks seriously broken</em> |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 279 | <p>XPath implementation prior to 2.3.0 was really incomplete, upgrade to |
| 280 | a recent version, the implementation and debug of libxslt generated fixes |
Daniel Veillard | 480363b | 2001-03-16 22:04:15 +0000 | [diff] [blame] | 281 | for most obvious problems.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 282 | </li> |
| 283 | <li> |
| 284 | <em>The example provided in the web page does not compile</em> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 285 | <p>It's hard to maintain the documentation in sync with the code |
Daniel Veillard | e9202a0 | 2000-10-16 16:58:19 +0000 | [diff] [blame] | 286 | <grin/> ...</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 287 | <p>Check the previous points 1/ and 2/ raised before, and send |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 288 | patches.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 289 | </li> |
| 290 | <li> |
| 291 | <em>Where can I get more examples and informations than in the web |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 292 | page</em> |
| 293 | <p>Ideally a libxml book would be nice. I have no such plan ... But you |
| 294 | can:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 295 | <ul> |
| 296 | <li>check more deeply the <a href="html/libxml-lib.html">existing |
| 297 | generated doc</a> |
| 298 | </li> |
| 299 | <li>looks for examples of use for libxml function using the Gnome code |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 300 | for example the following will query the full Gnome CVs base for the |
| 301 | use of the <strong>xmlAddChild()</strong> function: |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 302 | <p><a href="http://cvs.gnome.org/lxr/search?string=xmlAddChild">http://cvs.gnome.org/lxr/search?string=xmlAddChild</a></p> |
| 303 | <p>This may be slow, a large hardware donation to the gnome project |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 304 | could cure this :-)</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 305 | </li> |
| 306 | <li> |
| 307 | <a href="http://cvs.gnome.org/bonsai/rview.cgi?cvsroot=/cvs/gnome&dir=gnome-xml">Browse |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 308 | the libxml source</a> |
| 309 | , I try to write code as clean and documented as possible, so |
| 310 | looking at it may be helpful</li> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 311 | </ul> |
| 312 | </li> |
| 313 | <li>What about C++ ? |
Daniel Veillard | 008186f | 2001-09-13 14:24:44 +0000 | [diff] [blame] | 314 | <p>libxml is written in pure C in order to allow easy reuse on a number |
| 315 | of platforms, including embedded systems. I don't intend to convert to |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 316 | C++.</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 317 | <p>There is however a C++ wrapper provided by Ari Johnson |
Daniel Veillard | e9202a0 | 2000-10-16 16:58:19 +0000 | [diff] [blame] | 318 | <ari@btigate.com> which may fullfill your needs:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 319 | <p>Website: <a href="http://lusis.org/~ari/xml++/">http://lusis.org/~ari/xml++/</a> |
| 320 | </p> |
| 321 | <p>Download: <a href="http://lusis.org/~ari/xml++/libxml++.tar.gz">http://lusis.org/~ari/xml++/libxml++.tar.gz</a> |
| 322 | </p> |
| 323 | </li> |
| 324 | <li>How to validate a document a posteriori ? |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 325 | <p>It is possible to validate documents which had not been validated at |
| 326 | initial parsing time or documents who have been built from scratch using |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 327 | the API. Use the <a href="http://xmlsoft.org/html/libxml-valid.html#XMLVALIDATEDTD">xmlValidateDtd()</a> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 328 | function. It is also possible to simply add a Dtd to an existing |
| 329 | document:</p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 330 | <pre>xmlDocPtr doc; /* your existing document */ |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 331 | xmlDtdPtr dtd = xmlParseDTD(NULL, filename_of_dtd); /* parse the DTD */ |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 332 | dtd->name = xmlStrDup((xmlChar*)"root_name"); /* use the given root */ |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 333 | |
Daniel Veillard | e9202a0 | 2000-10-16 16:58:19 +0000 | [diff] [blame] | 334 | doc->intSubset = dtd; |
| 335 | if (doc->children == NULL) xmlAddChild((xmlNodePtr)doc, (xmlNodePtr)dtd); |
| 336 | else xmlAddPrevSibling(doc->children, (xmlNodePtr)dtd); |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 337 | </pre> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 338 | </li> |
| 339 | <li>etc ...</li> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 340 | </ol> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 341 | <p> |
Daniel Veillard | c5d6434 | 2001-06-24 12:13:24 +0000 | [diff] [blame] | 342 | <p><a href="mailto:daniel@veillard.com">Daniel Veillard</a></p> |
Daniel Veillard | b8cfbd1 | 2001-10-25 10:53:28 +0000 | [diff] [blame^] | 343 | </td></tr></table></td></tr></table></td></tr></table></td> |
| 344 | </tr></table></td></tr></table> |
Daniel Veillard | af74379 | 2000-07-01 11:49:28 +0000 | [diff] [blame] | 345 | </body> |
| 346 | </html> |