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| <meta name="abstract" content="A document type definition (DTD) contains a set of rules that can be used to validate an XML file. After you have created a DTD, you can edit it manually, adding declarations that define elements, attributes, entities, and notations, and how they can be used for any XML files that reference the DTD file." /> |
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| <title>Creating a new document type definition (DTD)</title> |
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| |
| <h1 class="topictitle1">Creating DTDs</h1> |
| |
| |
| |
| |
| <div><p>A document type definition (DTD) contains a set of rules that can |
| be used to validate an XML file. After you have created a DTD, you can edit |
| it manually, adding declarations that define elements, attributes, entities, |
| and notations, and how they can be used for any XML files that reference the |
| DTD file.</p> |
| |
| <div class="section"><p>The following instructions were written for the Resource perspective, |
| but they will also work in many other perspectives.</p> |
| <p>To create a new |
| DTD, complete the following steps:</p> |
| </div> |
| |
| <ol> |
| <li class="stepexpand"><span>Create a project to contain the DTD if needed.</span></li> |
| |
| <li class="stepexpand"><span>In the workbench, click <span class="menucascade"><span class="uicontrol">File</span> |
| > <span class="uicontrol">New</span> > <span class="uicontrol">Other</span></span> and select <span class="menucascade"> |
| <span class="uicontrol">XML</span> > <span class="uicontrol"> DTD</span></span>. Click <span class="uicontrol">Next</span>. </span> |
| </li> |
| |
| <li class="stepexpand"><span>Select the project or folder that will contain the DTD.</span></li> |
| |
| <li class="stepexpand"><span>In the <span class="uicontrol">File name</span> field, type the name of |
| the DTD, for example <kbd class="userinput">MyDTD.dtd</kbd>.</span> The name |
| of your DTD file must end with the extension <kbd class="userinput">.dtd</kbd> |
| </li> |
| |
| <li class="stepexpand"><span>Click <span class="uicontrol">Next</span>.</span></li> |
| |
| <li class="stepexpand"><strong>Optional: </strong><span>You can use a DTD template as the basis for |
| your new DTD file. To do so, click the <span class="uicontrol">Use DTD Template</span> check |
| box, and select the template you want to use.</span></li> |
| |
| <li class="stepexpand"><span>Click <span class="uicontrol">Finish</span>.</span></li> |
| |
| </ol> |
| |
| <div class="section"><p>The DTD appears in the Navigator view and automatically, by default, |
| opens in the DTD editor. In the DTD editor, you can manually add elements, |
| attributes, notations, entities, and comments to the DTD. If you close the |
| file, and want to later re-open it in the DTD editor, double-click it in the |
| Navigator view.</p> |
| </div> |
| |
| </div> |
| |
| <div><div class="relconcepts"><strong>Related concepts</strong><br /> |
| <div><a href="../topics/cdtdover.html" title="A document type definition (DTD) provides you with the means to validate XML files against a set of rules. When you create a DTD file, you can specify rules that control the structure of any XML files that reference the DTD file.">Document type definitions (DTDs) - overview</a></div> |
| </div> |
| <div class="reltasks"><strong>Related tasks</strong><br /> |
| <div><a href="../topics/tdtemplt.html" title="Templates are a chunk of predefined code that you can insert into a DTD file when it is created. You may find a template useful when you have a certain piece of code you want to reuse several times, and you do not want to write it out every time.">Working with DTD templates</a></div> |
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