cc4531cd1e
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@53 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
76 lines
1.3 KiB
Plaintext
76 lines
1.3 KiB
Plaintext
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:- protocol(termp).
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:- info([
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version is 1.0,
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authors is 'Paulo Moura',
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date is 2000/7/24,
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comment is 'Prolog terms protocol.']).
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:- public(ground/1).
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:- mode(ground(@term), zero_or_one).
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:- info(ground/1, [
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comment is 'True if the argument is ground.',
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argnames is ['Term']]).
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:- public(new/1).
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:- mode(new(-nonvar), zero_or_one).
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:- info(new/1, [
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comment is 'Creates a new term instance (if meaningful).',
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argnames is ['Term']]).
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:- public(occurs/2).
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:- mode(occurs(@var, @term), zero_or_one).
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:- info(occurs/2, [
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comment is 'True if the variable occurs in the term.',
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argnames is ['Variable', 'Term']]).
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:- public(subsumes/2).
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:- mode(subsumes(@term, @term), zero_or_one).
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:- info(subsumes/2, [
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comment is 'The first term subsumes the second term.',
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argnames is ['General', 'Specific']]).
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:- public(subterm/2).
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:- mode(subterm(?term, +term), zero_or_more).
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:- info(subterm/2, [
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comment is 'The first term is a subterm of the second term.',
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argnames is ['Subterm', 'Term']]).
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:- public(valid/1).
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:- mode(valid(@nonvar), zero_or_one).
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:- info(valid/1, [
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comment is 'Term is valid.',
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argnames is ['Term']]).
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:- public(vars/2).
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:- mode(vars(@term, -list), one).
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:- info(vars/2, [
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comment is 'Returns a list of all term variables.',
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argnames is ['Term', 'List']]).
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:- end_protocol.
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