antlr/antlr4 — pull request #187 by bkiers (2013-03-06 20:26:53+00:00)
Title: Added an export-to-PNG functionality.

Added an export-to-PNG button in the dialog that is launched after invoking org.antlr.v4.runtime.misc.TestRig with the "-gui" parameter. When pressed, a PNG file of the parse tree is created in the present working directory.