parser
Computing term for a program or component that analyzes syntactic structure of input (e.g., source code, data).
See also: パーサー
This parser can process XML documents at high speed.
コンパイラの構文解析器がソースコードを解析する。
The compiler's parser analyzes the source code.
Synonymous loanword; パーサー is more common in casual tech conversation, while 構文解析器 is a formal Japanese term.
Compound of 構文 (syntax) + 解析 (analysis) + 器 (device). A straightforward technical term.