iXML Community Group Test Suite

21 Jun 2022 (28 Jun 2022)

Top-level catalog for tests in the iXML Community Group Test Suite.

Tests have been contributed from several sources, but the core of the test collection are the tests contributed by Steven Pemberton in December 2021.

Misc tests 3

21 Jun 2022

Grammars 41-60.

Tests compiled manually in 2018 and 2019, re-packaged and extended (supplying test cases where needed) in 2022.

Note that some tests have alternate results for processors operating in non-standard modes, in particular modes in which they tolerate multiple definitions and undefined nonterminals or in which they do not tolerate non-productive nonterminals or unreachable nonterminals.

For a description of the form in which alternate results are recorded, see tests/misc-grammar/test-catalog.xml.

sample.grammar.46

Created 08 Feb 2022 by cmsmcq

A grammar with a non-productive nonterminal.

Invisible XML Grammar

{ Sample grammar adapted from Dick Grune and Ceriel J. H. Jacobs,
    Parsing techniques: A practical guide (New York: Ellis Horwood, 1990;
    Second edition New York:  Springer, 2008), pp. 57 (1e) and 48 (2e).

    This is adapted / extended from the example in G and J's discussion of
    non-productive non-terminals.

    }

    { Revisions:
    2018-08-10 : CMSMcQ : add pointer to 2e
    2018-08-09 : CMSMcQ : made first transcription; needs checking.
    }


    S: "b"; X.
    X: "a", X.

    

Test case: g46.c02

Repository URI: …/tests/misc/misc-041-060-catalog.xml

Input string (1 character)

a

Expected result

The input does not match the grammar.

Application specific extension

  • Q{http://blackmesatech.com/2019/iXML/Aparecium}unproductive-symbols = error

Expected result

Expected result

The grammar is invalid. Raises a static error.