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来自「java语法解释器生成器」· 代码 · 共 21 行

This is a small example of a standalone text substitution scanner.

It reads a name after the keyword name and replaces all occurences
of "hello" by "hello <name> !". 

sample.inp
  contains a sample input for the scanner

standalone.flex
  the lexical specification for the scanner

build.xml
  ant build file

to run the example use ant or type:

jflex standalone.flex
javac Subst.java
java Subst sample.inp