parsing

v. break a word into parts, analyze the grammatical structure of a sentence; analyze computer input

In computer science and linguistics, parsing (more formally syntactic analysis) is the process of analyzing a sequence of tokens to determine its grammatical structure with respect to a given formal grammar. A parser is the component of a compiler that carries out this task.Parsing transforms input text into a data structure, usually a tree, which is suitable for later processing and which captures the implied hierarchy of the input. Lexical analysis creates tokens from a sequence of input characters and it is these tokens that are processed by a parser to build a data structure such as parse tree or abstract syntax trees.
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Verb
1. analyze syntactically by assigning a constituent structure to (a sentence)
(hypernym) analyze, analyse, break down, dissect, take apart
(classification) grammar

(p. pr. & vb. n.)
of Parse
  

Look Ahead Left-to-right parse, Rightmost-derivation 

parser