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Change Log

Unreleased

Notes

Added

Removed

Changed

Fixed

Deprecated

Contributors

My warmhearted thanks goes to:

11.1.0 - 2023-08-19

Added

  • C-style comments (#148)

Contributors

My warmhearted thanks goes to:

11.0.1 - 2023-07-26

Notes

This should have been a minor release instead of a patch.

Added

  • Methods to mutably iterate over operators (Node::iter_operators_mut) and all types of identifiers (Node::iter_identifiers_mut, Node::iter_*_identifiers_mut) (#136)

Contributors

My warmhearted thanks goes to:

11.0.0 - 2023-06-01

Notes

  • Due to the introduction of GATs, the MSRV changes to 1.65.0 in this update.

Added

  • Builtin function math::abs (#130)
  • A CLI for evaluating expressions. Install via cargo install evalexpr. (#133)
  • The ability to parse integers from hex literals (#131)

Changed

  • The IterVariablesContext from using a lifetime parameter to GATs (#135)

Contributors

My warmhearted thanks goes to:

10.0.0 - 2023-05-21

Added

  • Builtin functions can now be disabled (#129)

Contributors

My warmhearted thanks goes to:

9.1.0 - 2023-05-16

Added

  • Builtin functions contains and contains_any (#127)

Contributors

My warmhearted thanks goes to:

9.0.0 - 2023-04-13

Fixed

  • Taking numbers to negative powers gave unexpected results (#120)
  • Update MSRV to 1.56.1 (2021 edition release) to allow builds with the latest versions of all dependencies.

Contributors

My warmhearted thanks goes to:

8.2.0 - 2023-04-13

Added

  • EvalExprError now derives Clone (#116)

Changed

  • Occurrences of f64 and i64 have been replaced with the type aliases FloatType and IntType where applicable (#113)

Contributors

My warmhearted thanks goes to:

8.1.0 - 2022-07-22

Added

  • Get all variables or variable/value pairs in a context via a new trait IterateVariablesContext (#108)
  • Functions iter_(read/write)_variable_identifiers, which iterate over all ReadVariableIdentifiers or all WriteVariableIdentifiers in an operator tree (#110)

Contributors

My warmhearted thanks goes to:

8.0.0 - 2022-07-06

Added

  • Builtin functions to check for nan, infinity and subnormality in floats (#101)
  • Builtin random function (#102)
  • Implement TryFrom<Value> for all types a value can hold (#105)
  • Split VariableIdentifier node into read and write variants (#106)

Contributors

My warmhearted thanks goes to:

7.2.0 - 2022-03-16

Added

  • The builtin function if, which mimics the if-else construct existing in many programming languages.

Contributors

My warmhearted thanks goes to:

7.1.1 - 2022-03-14

Fixed

7.1.0 - 2022-03-13

Added

  • Bit shift functions shl and shr, same as Rust's shift functions on i64.

Contributors

My warmhearted thanks goes to

7.0.1 - 2022-02-20

Changed

  • Updated the optional dependencies, and fixed them to a minimum tested version. For simplicity, I fixed them to the newest version, but since I export none of them, this is luckily not breaking.
  • Updated the dev-dependencies.

7.0.0 - 2022-01-13

Changed

  • Made the EvalexprError enum non_exhaustive.

Fixed

  • Expressions that have dangling parenthese expressions such as 4(5) now produce an error.

Contributors

My warmhearted thanks goes to

6.6.0 - 2021-10-13

Added

  • Bitwise operators as builtin functions bitand, bitor, bitxor, bitnot (#88)
  • Public immutable and mutable accessor functions to the operator and children of a Node.

Contributors

My warmhearted thanks goes to

6.5.0 - 2021-08-16

Added

  • Make Function::new able to accept closures (thanks to Jakub Dąbek)

Contributors

My warmhearted thanks goes to

6.4.0 - 2021-07-21

Notes

  • Minimum supported Rust version (MSRV) increased to 1.46.0
  • Increased test coverage by adding more test and ignoring untestable files

Added

  • Allow scientific notation in float literals

Changed

  • Made some functions const. This increased the MSRV

Fixed

  • eval_number methods returned EvalexprError::ExpectedFloat before, now they correctly return EvalexprError::ExpectedNumber

Contributors

My warmhearted thanks goes to

6.3.0 - 2021-07-06

Added

  • Implement more builtin math methods

Contributors

My warmhearted thanks goes to

6.2.0 - 2021-06-24

Notes

  • Increased test coverage

Added

  • Implemented Clone for HashMapContext

Contributors

My warmhearted thanks goes to

6.1.1 - 2021-06-22

Fixed

  • Improved syntax of documentation

6.1.0 - 2021-06-02

Added

  • Macro math_consts_context adding all of Rust's f64 constants
  • All common math functions implemented by Rust's f64 are now builtin
  • Continuous integration and test coverage report

Contributors

My warmhearted thanks goes to

6.0.0 - 2021-05-28

Added

  • #![forbid(unsafe_code)]
  • Made Function derive Clone
  • Ensure that Function implements Send and Sync

Removed

  • Cargo.lock

Changed

  • Decomposed Context into Context, ContextWithMutableVariables and ContextWithMutableFunctions
  • Replaced the get_function method of Context with a call_function method

Contributors

My warmhearted thanks goes to

5.1.0 - 2021-05-28

Added

  • Make Node cloneable

Contributors

My warmhearted thanks goes to

5.0.5 - 2019-09-13

Fixed

  • is-it-maintained badges had wrong repository definitions
  • maintenance status was given wrongly
  • move maintenance status to top

5.0.4 - 2019-09-13

Added

  • maintenance badge
  • is-it-maintained badges

5.0.3 - 2019-08-30

Fixed

  • The != operator was wrongfully parsed as Token::Eq

Contributors

5.0.2 - 2019-08-30

Changed

  • Removed target.bench.dev-dependencies completely, as they can be just listed under the normal dev-dependencies

5.0.1 - 2019-08-30

Fixed

  • Bench dependencies are now dev-dependencies so they are not listed on crates.io as normal dependencies anymore

5.0.0 - 'Sanity' - 2019-08-30

Notes

Finally, 'Sanity' has been released, including a huge bunch of new features. Notably, and providing a reason for the name of this release, function call and tuple semantics have improved a lot. Functions now always take exactly one argument, but this can then be a tuple. It is now possible to construct tuples of tuples, such that mode complex values can be constructed. As of now there is no way to deconstruct them though.

A lot has been done on string processing, special thanks for that goes to bittrance. Specifically, under the feature flag regex_support two regex functions for strings are hiding now. Also, the operators + and comparison operators have been fitted to support strings.

Thanks to lovasoa, we now have a nice macro for context creation.

Thanks to Atul9, the crate is now Rust 2018 compliant.

Thanks to mestachs' request, we now have functions to iterate over identifiers within an expression.

Internally, the structure of the operator tree changed from being &dyn-based to being enum-based. Also, we have benchmarks now to observe performance changes in future releases.

Added

  • Iterator over all identifiers within an expression, including duplicates
  • Iterators over only variable or only function identifiers within an expression, including duplicates
  • Overload the + operator to concatenate strings
  • Overload <, <=, > and >= for strings using lexical ordering (Note: == and != compare strings as expected)
  • Add len, str::regex_matches, str::regex_replace, str::to_lowercase, str::to_uppercase, str::trim functions for strings
  • Add a macro for more convenient definition of contexts including the direct definition of static contexts
  • Add API for value decomposition
  • Allow using context operations in eval calls without context
  • Operator assignment operators for each binary operation (+=, -=, ...)
  • The Operator enum is now public for better error types
  • Benchmarks for observing performance of future releases

Removed

  • Function arguments are not decomposed anymore. The function implementation will receive exactly one argument now. This allows the function to be called on a tuple properly.

Changed

  • Operators are an enum now instead of trait objects
  • Update to Rust 2018
  • Updated dependencies

Fixed

  • Allow variable assignments in eval calls without context. A HashMapContext is created automatically now.
  • The error string for ExpectedNumber was wrong
  • Operators panicked when adding a number to a string
  • Some documentation was not updated for the 4.x releases

Contributors

My warmhearted thanks goes to

4.1.0 - 2019-03-31

Added

  • Export expect_function_argument_amount

4.0.0 - 2019-03-30

Added

  • String constants

3.1.0 - 2019-03-28

Added

  • Add serde support to HashMapContext
  • Make HashMapContext derive Default and Debug

Changed

  • Changed name of serde feature flag to serde_support

3.0.0 - 2019-03-28

Notes

The 3.0.0 update transforms the expression evaluator evalexpr to a tiny scripting language. It allows assignments and chaining of expressions. Some changes in this update are breaking, hence the major release.

Added

  • Methods Node::eval_<type>_with_context_mut and crate level eval_<type>_with_context_mut
  • Empty type and corresponding shortcut methods. The empty type is emitted by empty expressions or empty subexpressions ().
  • The assignment operator =
  • The expression chaining operator ;

Removed

  • Generic arguments from Context traits are now static to allow using trait objects of Context
  • EvalexprError::EmptyExpression is not required anymore since empty expressions now evaluate to the empty type

Changed

  • Merge ContextMut trait into Context trait

2.0.0 - 2019-03-28

Notes

The 2.0.0 update is the first step to transform evalexpr to a tiny scripting language with support of at least variable assignment. The main change for now is that Configuration is called Context, which seems to be a more proper naming for a set of variables that can not only be read, but also manipulated via expressions. This update includes further renamings and some inconsistencies in the API were fixed. For more details, see the following subsections.

Added

  • Add the ContextMut trait, that is a manipulable configuration/context
  • Add ContextNotManipulable error variant for the EmptyContext
  • Make the TupleType alias public
  • Add the ValueType enum that represents the type of a value for easier comparisons and matchings
  • Add EvalexprResult<T> type that uses the EvalexprError type (renamed from Error)
  • Add Node::eval_number and Node::eval_number_with_context to evaluate to int or float and silently converting to float
  • Add eval_number and eval_number_with_context crate methods to evaluate to int or float and silently converting to float

Changed

  • Get rid of some unwraps to improve safety
  • Rename Error to EvalexprError
  • Rename Configuration to Context
  • Rename HashMapConfiguration to HashMapContext and EmptyConfiguration to EmptyContext
  • Rename Value::as_float to Value::as_number and add new Value::as_float that fails if value is an integer

1.2.0 - 2019-03-23

Added

  • Add serde feature
  • Implement serde::de::Deserialize for Node
  • Document serde usage
  • Add custom error type with a String message

Changed

  • Highlighting in documentation

1.1.0 - 2019-03-20

Added

  • Internal aliases IntType and FloatType used by the Value enum are now public
  • Type alias TupleType used to represent tuples was added
  • Error types like Error::ExpectedInt for expecting each value type were added
  • Shortcut functions like eval_int or eval_int_with_configuration to evaluate directly into a value type were added
  • Documentation for the shortcut functions was added
  • Functions to decompose Values were added and documented

Removed

  • Integration tests were removed from shipped crate

Fixed

  • Wording of some documentation items was changed to improve readability

1.0.0 - 2019-03-20

  • First stable release