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Databases - Practical PostgreSQL
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Including Flat Files

Flat file is a term used to refer to a plain-text document. A flat file is a non-parsed document (such as a simple HTML document, or text file), as far as the server is concerned.

As with the inclusion of LXP documents, the flat file inclusion method does not require a closing tag, and should therefore be used as an empty-element tag with a trailing slash. To include a flat file, open an LXP region, and use the following syntax where flatfile is the name of the file you wish to include:

  <include src="
flatfile
" />

If the flat file you are including has a recognized file extension, you may force it to be displayed literally by using the method="flat" attribute. Example 13-22 demonstrates an LXP document which includes three HTML files, from a relative directory called parts , to be used as a header, sidebar, and footer. Since their extensions do not imply any more complex method, the files are included as-is in the main document.

Example 13-22. Including flat files

<lxp>
  <include src="parts/header.html" />
  <include src="parts/leftbar.html" />
    Welcome to my home page.<br />
  <include src="parts/footer.html />
</lxp>

As you can see, this sort of inclusion can make web sites with consistent themes far easier to maintain by modularizing components in a manner similar to what is done when using server-side-includes or PHP's readfile() function. In addition, flat file inclusion allows you to achieve this modularity without having to leave the simplicity and elegance of mark-up design. This is certainly not the full extent of the <include> tag's power, as you will find out in subsequent sections.

Databases - Practical PostgreSQL
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