From English, parcing. Parsing is the process of parsing a sequence of symbols in order to determine its grammatical structure with respect to a given formal grammar. Formally it is called parsing of syntax. A parser is a computer program that performs this task (also called a syntax parser).
Parsing transforms a text input into a data structure (usually a tree) that is suitable for processing. Generally, parsers first identify the input symbols and then build the parse tree for those symbols.
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