version of ASDTester 1.06 - a version that can be run from
a Java-enabled web browser running JRE 1.2 or higher, including
Java Swing The demo version was created by Roxanne Parent.
Like the production version of ASDTester (see http://www.yorku.ca/jmason/software.htm),
structure trees that result. Most features of the demo
version work the same as for the production version.
However, because of security restrictions on Java applets, the
demo version only permits opening of grammar files from a
specific web site, not from the user's local computer.
Also the "Copy selection" choice from the Action menu doesn't
work in the demo version, at least under MS Windows, as it does
in the production version. That, too, may be due to a Java
applet security restriction. Selections from the
"Action" menu are also available from a pop-up menu in the
bottom pane of the window. (Use the right mouse button to
invoke that menu under MS Windows, Linux or other versions of
Unix.) The demo version of ASDTester must be terminated by
selecting "Exit" from the "Action" menu, rather than by closing
the window. Please note that ASDTester uses only the syntax of
ASD grammars, not the semantic actions and values with which a
grammar may be augmented. When ASDTester displays a phrase
structure tree, the tree and its subtrees are displayed
sideways, with the root at the top left and descendants of the
root indented below it. ASDTester permits the results of
parsing to be applied and viewed one step at a time, so one can
see how the ASDParser constructs a phrase structure tree
Here are some suggested examples to try parsing with the demo
version of ASDTester:
With the example grammar cardinal.grm:
-- "one hundred and twenty-five thousand"
Try parsing it stepwise,
with and without the check boxes being checked. Try for
more than one successful parse.
With the example grammar npX.grm:
-- "the last doughnut in this big box"
-- "the very first little green apple"