By Ken Thompson
Communications of the ACM,
June 1968,
Vol. 11 No. 6, Pages 419-422
10.1145/363347.363387
Comments
A method for locating specific character strings embedded in character text is described and an implementation of this method in the form of a compiler is discussed. The compiler accepts a regular expression as source language and produces an IBM 7094 program as object language. The object program then accepts the text to be searched as input and produces a signal every time an embedded string in the text matches the given regular expression. Examples, problems, and solutions are also presented.
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