https://github.com/rushuiguan/expression

c# expression parser and evaluator
https://github.com/rushuiguan/expression

csharp eval expression parser

Last synced: 8 months ago
JSON representation

c# expression parser and evaluator

• Host: GitHub
• URL: https://github.com/rushuiguan/expression
• Owner: RushuiGuan
• License: mit
• Created: 2015-08-11T02:07:30.000Z (over 10 years ago)
• Default Branch: main
• Last Pushed: 2024-12-09T00:59:56.000Z (about 1 year ago)
• Last Synced: 2025-05-20T20:30:58.495Z (8 months ago)
• Topics: csharp, eval, expression, parser
• Language: C#
• Homepage: https://rushuiguan.github.io/expression
• Size: 1.67 MB
• Stars: 10
• Watchers: 5
• Forks: 5
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

          
* v3.0.13

	* New operation GetJsonArrayItem

		* Provided a json array and an index, the operation will return the array item at the index.

		* example 1: GetJsonArrayItem('[1, 2, 3]', 1)

			* return value 2

		* example 2: GetJsonArrayItem('[1, 2, 3]', 3)

			* throw an ArgumentException since array index is out of bound

* v3.0.12

	* New operation RegexCapture

		* RegexCapture can be used to extract part of a text string using regex pattern and capature groups.

		* Operands

			1. text to be parsed

			2. regex pattern

			3. group capture index (optional with the default of 0)

		* example 1: RegexCapture('abc123', '[a-z]+(\\d+)', 1)

			* returns 123

		* example 2: RegexCapture('abc123', '[a-z]+(\\d+)')

			* return abc123 because capture index is not specified and 0 is used by default

		* example 3: RegexCapture('abc123', '[a-z]+(\\d+)', 3)

			* throw an ArgumentException since capture index is out of bound

* 3.0.11

	* New operation 

		* Floor - The Floor operation calls C# Math.Floor.  It returns the largest integral value from the input double number.

		* Round - The Round operation calls C# Math.Round and use AwayFromZero rounding

			* Operands

				1. double value to be rounded

				2. number of fractional digits in the return value

		* UnixTimestamp2DateTime - Converts a Unix time expressed as the number of seconds that have elapsed since 1970-01-01T00:00:00Z to a DateTime value in UTC

			* Operands

				1. integer: number of seconds that have elapsed since 1970-01-01T00:00:00Z