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Markdown [9] is a lightweight markup language for creating formatted text using a plain-text editor. John Gruber created Markdown in 2004 as an easy-to-read markup language. [9] Markdown is widely used for blogging and instant messaging, and also used elsewhere in online forums, collaborative software, documentation pages, and readme files.
## Documentation of the module *ReSTructuredText* and **MarkDown** # This is a comment, but it is not a documentation comment. type Kitten = object ## Documentation of type age: int ## Documentation of field proc purr (self: Kitten) = ## Documentation of function echo "Purr Purr" # This is a comment, but it is not a documentation comment.
An abstract syntax tree (AST) is a data structure used in computer science to represent the structure of a program or code snippet. It is a tree representation of the abstract syntactic structure of text (often source code) written in a formal language.
Input Output {{ParserFunction | expr}}{{}} {{ParserFunction | if}}{{}} {{ParserFunction | ifeq}}{{}} {{ParserFunction | iferror}}{{}} {{ParserFunction | ifexpr ...
However, note that performance suffers when there are more than 100 alternatives. Placing common values earlier in the list of cases can cause the function to execute significantly faster. For each case, either side of the equals sign "=" can be a simple string, a call to a parser function (including #expr to evaulate expressions), or a ...
Magic words (including parser functions, variables and behavior switches) are features of wiki markup that give instructions to Wikipedia's underlying MediaWiki software. For example, magic words can suppress or position the table of contents, disable indexing by external search engines, and produce output dynamically based on the current page or on user-defined conditional logic.
This category is hidden on its member pages—unless the corresponding user preference (Appearance → Show hidden categories) is set.; These categories can be used to track, build and organize lists of pages needing "attention en masse" (for example, pages using deprecated syntax), or that may need to be edited at someone's earliest convenience.