patrick/foliage-rs
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549f1277292cc0acf6c98af9d1b6ed8e8028953c
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Author SHA1 Message Date
patrick 549f127729 Derive simple enums from basic traits 
This adds derive statements from Copy, Clone, PartialEq, and Eq to the
operator enums as well as SpecialInteger.
 2020-03-30 06:37:21 +02:00
patrick a304ec9a75 Fix output of Booleans in formulas 
Booleans are supposed to be formatted without a leading hash sign in
both terms and formulas. By mistake, the formula formatter added leading
hash signs though.
 2020-03-30 06:37:21 +02:00
patrick a82b4080c8 Fix function formatting 
By mistake, a function’s name was printed two consecutive times if the
function had more than one argument.
 2020-03-30 06:37:21 +02:00
patrick 90f7be2f33 Minor refactoring for clarity 2020-03-30 06:37:21 +02:00
patrick a127a053b2 Support formatting special integers separately 
This adds Debug and Display trait implementations for the SpecialInteger
enum to make it possible to format its values without having to wrap it
in a Term variant.
 2020-03-30 06:37:21 +02:00
patrick 14abd73110 Remove unneeded lifetime specifiers 2020-03-30 05:19:01 +02:00
patrick 3a5788bd24 Remove redundant release badge 
Provided that the latest version of this crate is always published on
crates.io and tagged as a release on GitHub.com, the crates.io and the
GitHub.com release badges will always show the same version.
Consequently, remove the GitHub.com release badge to avoid redundancy.
 2020-02-25 15:27:24 +01:00
patrick a446aed011 Initial commit 
This provides an abstract syntax tree for first-order logic with integer
arithmetics. Initially, the following types of formulas are supported:

- Booleans values (true and false)
- predicates
- negated formulas
- comparisons of terms (<, ≤, >, ≥, =, ≠)
- implications and biconditionals
- conjunctions and disjunctions of formulas
- existentially and universally quantified formulas

In addition, these types of terms are provided:

- Boolean values (true and false)
- integers
- strings
- special integers (infimum and supremum)
- symbolic functions
- variables
- binary operations (addition, subtraction, multiplication, division,
  modulo, exponentiation)
- unary operations (absolute value, numeric negation)
v0.1.0 		2020-02-05 03:23:11 +01:00