ANTLR "Arithmetic" Grammar - Graphical Output


Where to get a graphical output example of the "Arithmetic" grammar with ANTLR?

✍: FYIcenter


You can run the following ANTLR TestRig command to generate a graphical output from the "Arithmetic" lexer and parser:

\fyicenter>java -cp .;antlr-4.7.1-complete.jar \
   org.antlr.v4.gui.TestRig arithmetic equation -gui
x  = (-b + (b^2 -4*a*c)^0.50) / 4*a*c

The above test session will result the following graphical window alled "Parse Tree Inspector", displaying the parser output:
ANTLR TestRig Parse Tree Inspector - Arithmetic Example


ANTLR Parser Java API

ANTLR "Arithmetic" Grammar

ANTLR Commands and Examples

⇑⇑ FAQ for ANTLR Parser Generator

2021-01-09, 6474👍, 0💬