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Step debugging is a powerful tool that allows you to step through code one line at a time, and hover over variables to see their contents at the time of execution. IDEs that easily support Lua step debugging include ZeroBrane Studio, and IntelliJ IDEA with various debugger plugins (Emmy Lua or Lunalysis).
Lua patterns deliberately lack the most complex regular expression constructs (to avoid bloating the Lua code base), where many other computer languages or libraries use a more complete set. Lua patterns are not even a subset of regular expressions, as there are also discrepancies, like Lua using the escape character % instead of \, , and ...
While Lua allows the true and false boolean values, wikicode templates can only express boolean values through strings such as "yes", "no", etc. This module processes these kinds of strings and turns them into boolean input for Lua to process. It also returns nil values as nil, to allow for distinctions between nil and false. The module also ...
Demo lines 2 and 3 by Johnuniq above show this effect. Line 4 still has the prefixed space, because by the addition of a character (|), the prefixed space has become an internal space and so is not affected by trimming. {} shows spaces with parameter 1 only because that is the only parameter not #if-ed in code.
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This becomes a problem when you have 6 tabs or 24 spaces, what could be small on a notepad gets exploded on wikipedia. While yes I do use tabs outside wiki spaces are prefered on wiki, unless the css for lua code is changed kind of like how a .css pages on wiki are treated with a line number and proper tabing, I would say spacing is prefered..
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This Lua module is used on approximately 959,000 pages, or roughly 2% of all pages. To avoid major disruption and server load, any changes should be tested in the module's /sandbox or /testcases subpages, or in your own module sandbox. The tested changes can be added to this page in a single edit.