![]() ![]() Regular expressions are one of the most powerful tools available today for effective and efficient text processing and manipulations. Regular Expressions, commonly known as " regex" or " RegExp", are a specially formatted text strings used to find patterns in text. Regular expression tab rapid php how to#Largely built upon MPS, a commercial actionscript editor, Realaxy was created.In this tutorial you will learn how regular expressions work, as well as how to use them to perform pattern matching in an efficient way in JavaScript. All that is needed is for the technology to mature to a commercially viable product. (Yes this is possible with editor plugins, but working on text directly adds so many unnecessary complexities, as opposed to the approach MPS takes.)Īs opposed to tabs and spaces, there are little disadvantages which can be mentioned for working directly on abstract syntax trees. It was JetBrain's Language Oriented Programming editor Meta Programming System (MPS) which first made me realize this resolves the entire discussion, simultaneously adding a lot of extra possibilities. Furthermore, this view shouldn't be limited to just text, but can include tables, color pickers and mathematical formulas. Any developer can apply his own preferred view. Regular expression tab rapid php code#Ideally code should be considered data, and not be stored in any specific text formatting. Plenty of arguments have been given already, but nobody mentioned where we could be headed in the future. **Disclosure: The XSLT Editor with virtual formatting was developed by my own company* XSLT is possibly an extreme case, but this principle holds true for many programming languages: Characters should be used for content and an alternative method sought when it comes to formatting. Unfortunately, these now can't be distinguished from real content so the XSLT would have to be modified to correct this issue. ![]() ![]() The larger blank yellow blocks in the screenshot above clearly show the space characters added by the formatter of the conventional editor. To contrast this with space character formatting, the same XSLT opened in an editor without virtual formatting is transformed by that editor's auto-formatter to this: You can even set the indentation width to 0, if you need a flattened view of the code as shown below: With virtual formatting you choose the indentation width to suit the environment and indentation style without affecting any characters in the source file. The only leading space characters precede the Books lines, because this is literal text content, not code, these space characters must be preserved. The code indentation is handled by the editor's rendering system adjusting the left margin (which has a white background). Every character in the XSLT has been highlighted in yellow, for illustrative purposes, to allow the only tab or space characters in the content to be seen clearly. To demonstrate virtual formatting, the screenshot below is from an XSLT editor* that uses this indentation method (there's also a short video here). The only code editor I know that supports this though is the one used in the sample below: The only method to format code flawlessly and flexibly with different formatting styles is to do it virtually, that is, without any indentation characters. Formatting using characters is inflexible and can cause conflict when different styles are used within a team. The answer is that there can be no single proper indentation character for every situation. ![]()
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