autoSql and autoXml: Code Generators from the Genome Project
autoXml extends the type field of ATTLIST to include INT or FLOAT for numerical rather than string values. Similarly you can use #INT or #FLOAT in place of #PCDATA to put a numerical type in the text field. If you include these extensions, please use the .dtdx rather than .dtd suffix on your DTD file.
Currently autoXml only copes with DTD comments if they start on a line by themselves. autoXml expects all ELEMENTS and ATTLIST declarations to fit on a single line. It doesn't handle reference data types beyond saving the reference ID as a string.
Refer to Listing 3 for a complete example of the source code autoXml generates. In addition to the .h file shown in Listing 3, autoXml generates a corresponding .c file as well. Each XML file has to have a root object. In this case the root object is POLYGON (our DTD as is won't let us have more than one polygon per file). You can read an XML file that respects this DTD using the polyPolygonLoad() function, and save it back out using the polyPolygonSave.
autoSql and autoXml work well on a range of data, as you've seen, anywhere from an address book to gene tracks. We hope you'll find these tools useful on your own projects.
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Enter to Win an Adafruit Pi Cobbler Breakout Kit for Raspberry Pi
It's Raspberry Pi month at Linux Journal. Each week in May, Adafruit will be giving away a Pi-related prize to a lucky, randomly drawn LJ reader. Winners will be announced weekly.
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Realizing the promise of Apache® Hadoop® requires the effective deployment of compute, memory, storage and networking to achieve optimal results. With its flexibility and multitude of options, it is easy to over or under provision the server infrastructure, resulting in poor performance and high TCO. Join us for an in depth, technical discussion with industry experts from leading Hadoop and server companies who will provide insights into the key considerations for designing and deploying an optimal Hadoop cluster.
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