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The Basics

A SimpleExpression object is mostly used to create a regular expression. Nevertheless it also wraps a Regex object and can thus provide basic matching and validation functions.

A SimpleExpressions is build by chaining commands one after the other, each consecutive members separated by a dot .. Two Content members chained one after the other imply "the first one - then - the second one":

Text("http").Text("://") //means that we want to match "http://"
Text("http").Maybe("s").Text("://") //means we want to match "http://" and "https://"

Creating a command

Here are all the functions that SimpleExpressions currently supports:

Content

• Alphanumerics, Letters, Numbers
• One(char/string), OneOf(string)
• Text(string)
• Maybe(string)
• EitherOf(string)

Modifiers

• NumberInRange(string), LetterInRange(string)
• Except(string)
• And(string), Except(string)

Logical operators

• X.Or.Y.Then

Groups and bounds

• Repetition Exactly(int)/AtLeast(int).AtMost(int)
• Groups Group.X.Y.Together.As(string)

Potential Roadmap (!Here be Dragons!)

• PreRepeaters OneOrMore, ZeroOrMore
• Use Maybe to notify that the next element is optional
• Use Either-Or-Then structure instead of just Or-Then (to limit the number of groups that must be created)
• Implement something like a Repeat-X-Cardinal-Times?
• Anything
• Word(string)
• StartsWith
• EndOfLine