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# Package "fnotation"

Title: Function notation for Prolog Not rated. Create the first rating! 0.0.3 5134ec5a7e127361ebd2467adf7e0169d31e7c8e Vitaliy Akimov Vitaliy Akimov Vitaliy Akimov https://github.com/awto/fnotation https://github.com/awto/fnotation/archive/v0.0.3.zip

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0.0.16d6a90c8126b5b21fd1e2d02b9b73f445c21a98b1https://github.com/awto/fnotation/archive/v0.0.1.zip
0.0.2616548027a1f8c7160e9985bf26e3fbf9e296bb42https://github.com/awto/fnotation/archive/v0.0.2.zip

# Function notation for Prolog

This is simple term_expansion/2 based macros for functions notation inspired by Mozart/Oz.

Unlike other libraries for the same purposes this librart is much simplier, output code is still easy to debug, it doesn't require special notation for function's definitions, any predicate may be used as a funciton already. The simpliest usage is for predicate with the only output argument in the last position. But any predicate with any position of output arguments and any number of them may be called as a function. In case of more than one arguments only one can be specified by placeholder but the others may still be bound with some named variable.

Use `\$>` and `\$<` operators in subterms of head or body to specify function's term and its output variable placeholder respectively. If the variable placeholder isn't specified the library will add another (last) argument for the term and use it as output variable.

e.g.

`sample1(A,\$> sample2(\$> sample3(\$<, A))) .`

and

`sample1(A,\$> sample2(\$> sample3(\$<, A), \$<)) .`

and

`sample1(A,R) :- sample2(\$> sample3(\$<, A), R) .`

will be translated into

`sample1(A,R) :- sample3(T,A) sample2(T, R) .`

The operators name may be changed, for example making both of them to be `\$\$`:

```:- fnotation_ops(\$\$,\$\$) .
:- op(900,fx,\$\$) .

sampled(A,R) :- sample2(\$\$ sample3(\$\$, A), R) .```

## Contents of pack "fnotation"

Pack contains 5 files holding a total of 4.8K bytes.