Compiler theory lexical analysis experiment First, the purpose of the experiment : Design prepared by commissioning a specific lexical analysis program to deepen the understanding of the principles of lexical analysis . And mastery of the programming language source code scanning process will be broken down into various types of word lexical analysis methods . Second, experimental content Preparation of an ability to analyze integer, decimal , string, identifier , separator, lexical analysis program operators and keywords. At the same time to be able to filter line comments and block comments. Third, the experimental requirements A lexical rules Keywords : if, then, else, while, do, int, float, string, begin, end Words Category : 1 Identifier: beginning with the letter alphanumeric string . Word category: 2 Integer: numeric string . Words Category : 3 Decimal : numeric string • string of digits Words Category : 4 String: a pair of " " text string enclosed

CP_test_1\CP_test_1\a.txt
.........\.........\Compiler.cpp
.........\.........\CP_test_1.vcxproj
.........\.........\CP_test_1.vcxproj.filters
.........\.........\Debug\2.obj
.........\.........\.....\CL.read.1.tlog
.........\.........\.....\CL.write.1.tlog
.........\.........\.....\Compiler.obj
.........\.........\.....\Compiler1.obj
.........\.........\.....\CP_test_1.lastbuildstate
.........\.........\.....\CP_test_1.log
.........\.........\.....\..........tlog\CL.read.1.tlog
.........\.........\.....\..............\CL.write.1.tlog
.........\.........\.....\..............\CP_test_1.lastbuildstate
.........\.........\.....\..............\link.read.1.tlog
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