Demonstrates how you can use animated updates to open and close sections of a table view for viewing, where each section represents a play, and each row contains a quotation from the play. It also uses gesture recognizers to respond to user input: * A UITapGestureRecognizer to allow tapping on the section headers to expand the section; * A UIPinchGestureRecognizer to allow dynamic changes to the height of table view rows; and * A UILongPressGestureRecognizer to allow press-and-hold on table view cells to initiate an email of the quotation.
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Not being required to develop a schema before you build your application is a huge time saver. It enables quick prototyping and lets you mold the structure of your document as you delve into its different uses within your application.
A better approach is to parse the XSLT stylesheet into memory once, compile it to machine-format, and then preserve that machine representation in memory for repeated use. This is called stylesheet compilation and is no different in concept than the compilation of any programming language.
When John McCarthy in 1960 wrote his famous paper on the programming language LISP, he used a particular function to illustrate what you could do with the
You might have read (about) the book Domain-Specific Languages written by Martin Fowler. As the name suggests it is about these little useful programming languages you can built very easily with Xtext.
void emptyVase( int flowersInVase ) {
if( flowersInVase > 0 ) {
// take one flower and
emptyVase( flowersInVase - 1 ) ;
} else {
// the vase is empty, nothing to do
}
}