How to Install Antlr4 in Ubuntu/Linux
Antlr is a parser generator written in Java. Execute these commands to download atlr .jar file in /usr/local/lib directory cd /usr/local/lib curl -O http://www.antlr.org/download/antlr-4.5-complete.jar add antlr4 to your class path. export CLASSPATH=".:/usr/local/lib/antlr-4.5-complete.jar:$CLASSPATH" create alias alias antlr4='java -Xmx500M -cp "/usr/local/lib/antlr-4.5-complete.jar:$CLASSPATH" org.antlr.v4.Tool' alias grun='java org.antlr.v4.runtime.misc.TestRig' Test installation java org.antlr.v4.Tool ANTLR Parser Generator Version 4.5 -o ___ specify output directory where all output is generated -lib ___ specify location of grammars, tokens files -atn generate rule augmented transition network diagrams ........... ........... The above 3 commands (one export and two alias commands) needs to be run every time you start a new terminal. To solve this problem put the three commands in your .bashrc file li
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