Document Type

Report

Date

5-1970

Embargo Period

4-25-2012

Keywords

computational linguistics

Language

English

Disciplines

Computer Sciences

Description/Abstract

Formal parsing rules for programming languages often have machinery for recognizing identifiers, numerical constants, and other substrings whose internal structure is only marginally relevant to the language structure as a whole. In this note alphabets are introduced in which identifiers, constants, etc. are regarded as single symbols. An alphabet is thus constructed out of a finite set of characters, is identified as a regular language and a simple recognition algorithm is described, giving the language designer considerable latitude in his choice of alphabet.

Source

local

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