Then only if we did match something (other than void) will we insert a newline, tab and the return nil text. +) and put the latter match in capture register 1. Here we match placeholder 1 against void or anything (. If for example we want to create a snippet which wraps the selection in a LaTeX \textbf command, we can make a snippet which is: \textbf TextMate grammars are a structured collection of regular expressions and are written as a plist (XML) or JSON files. VS Code's tokenization engine is powered by TextMate grammars. All the normal dynamic variables are supported, the most useful probably being TM_SELECTED_TEXT. Tokenization The tokenization of text is about breaking the text into segments and to classify each segment with a token type. You can insert the value of a variable by prefixing the name of the variable with $. An escape not followed by one of these two characters (or followed by another escape) will be inserted as a literal character. So if you want to insert one of these, prefix it with an escape (i.e. If you use snippets to insert plain text there is only one thing you should be aware of: $ and ` are reserved characters. In the simplest case, you can use snippets to insert text that you do not want to type again and again, either because you type it a lot, or because the actual text to insert is hard to remember (like your bank account details or the HTML entities for the Apple modifier keys). It can include code to run at insertion time, variables (like selected text), tab stops/placeholders for missing information (which you can tab through after insertion) and perform transformations on the data which you enter in the placeholders.
A snippet is a piece of text that you would like to insert in your document.
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