Translation of "preprocessor" into Finnish

program that processes its input data [..]

type of computer program which processes the input for another program

A text processor that manipulates the text of a source file as part of the first phase of translation. The preprocessor does not parse the source text, but it does break it up into tokens for the purpose of locating macro calls. Although the compiler ordinarily invokes the preprocessor in its first pass, the preprocessor can also be invoked separately to process text without compiling.