HAWKEYE was a program for text analysis for the IBM 370 and developed in the 1970s. It could accept text from an IBM typewriter and had functions to describe text componants such as words and clause lengths, conduct frequency analyses, and generate word-class distributions. HAWKEYE was written in PL/I as an updated and improved verison of EYEBALL.
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More information on HAWKEYE is available in the following article:
Guinn, Dorothy Margaret. \"The Making of a Masterpiece: Stephen Crane's The Red Badge of Courage.\" Computers and the Humanities 14.4 (1980): 231-239. Web.