Class RegexPattern

Namespace

NuvTools.Validation

Assembly

NuvTools.Validation.dll

Provides strongly-typed and pre-compiled regex patterns commonly used in the application. This class exposes both the raw pattern constants and pre-generated compiled Regex instances.

public static class RegexPattern

Inheritance

object

RegexPattern

Inherited Members

object.GetType()

object.MemberwiseClone()

object.ToString()

object.Equals(object)

object.Equals(object, object)

object.ReferenceEquals(object, object)

object.GetHashCode()

Methods

Base64ContentRegex()

[GeneratedRegex("^(?<content>(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))$", RegexOptions.Compiled|RegexOptions.CultureInvariant)]
public static Regex Base64ContentRegex()

Returns

Regex

Remarks

Pattern:

^(?<content>(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))$

Options:

RegexOptions.Compiled | RegexOptions.CultureInvariant

Explanation:

○ Match if at the beginning of the string.
○ "content" capture group.
    ○ Loop greedily any number of times.
        ○ Match a character in the set [+/-9A-Za-z] exactly 4 times.
    ○ Match with 3 alternative expressions.
        ○ Match a sequence of expressions.
            ○ Match a character in the set [+/-9A-Za-z] exactly 2 times.
            ○ Match the string "==".
        ○ Match a sequence of expressions.
            ○ Match a character in the set [+/-9A-Za-z] exactly 3 times.
            ○ Match '='.
        ○ Match a character in the set [+/-9A-Za-z] exactly 4 times.
○ Match if at the end of the string or if before an ending newline.

Base64DataUriRegex()

[GeneratedRegex("^data:(?<type>.+?\\/(?<extension>.+?));(?<base>.+),(?<content>(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))$", RegexOptions.Compiled|RegexOptions.CultureInvariant)]
public static Regex Base64DataUriRegex()

Returns

Regex

Remarks

Pattern:

^data:(?<type>.+?\\/(?<extension>.+?));(?<base>.+),(?<content>(?:[A-Za-z0-9+/]{4})*(?:[A-Za-z0-9+/]{2}==|[A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{4}))$

Options:

RegexOptions.Compiled | RegexOptions.CultureInvariant

Explanation:

○ Match if at the beginning of the string.
○ Match the string "data:".
○ "type" capture group.
    ○ Match a character other than '\n' lazily at least once.
    ○ Match '/'.
    ○ "extension" capture group.
        ○ Match a character other than '\n' lazily at least once.
○ Match ';'.
○ "base" capture group.
    ○ Match a character other than '\n' greedily at least once.
○ Match ','.
○ "content" capture group.
    ○ Loop greedily any number of times.
        ○ Match a character in the set [+/-9A-Za-z] exactly 4 times.
    ○ Match with 3 alternative expressions.
        ○ Match a sequence of expressions.
            ○ Match a character in the set [+/-9A-Za-z] exactly 2 times.
            ○ Match the string "==".
        ○ Match a sequence of expressions.
            ○ Match a character in the set [+/-9A-Za-z] exactly 3 times.
            ○ Match '='.
        ○ Match a character in the set [+/-9A-Za-z] exactly 4 times.
○ Match if at the end of the string or if before an ending newline.

EmailRegex()

[GeneratedRegex("^([a-z0-9_\\-])([a-z0-9_\\-\\.]*)@((\\[((25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\\.){3}(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\\])|((([a-z0-9\\-]+)\\.)+([a-z]{2,})))$", RegexOptions.IgnoreCase|RegexOptions.Compiled|RegexOptions.CultureInvariant)]
public static Regex EmailRegex()

Returns

Regex

Remarks

Pattern:

^([a-z0-9_\\-])([a-z0-9_\\-\\.]*)@((\\[((25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\\.){3}(25[0-5]|2[0-4][0-9]|1[0-9][0-9]|[1-9][0-9]|[0-9])\\])|((([a-z0-9\\-]+)\\.)+([a-z]{2,})))$

Options:

RegexOptions.IgnoreCase | RegexOptions.Compiled | RegexOptions.CultureInvariant

Explanation:

○ Match if at the beginning of the string.
○ 1st capture group.
    ○ Match a character in the set [-0-9A-Z_a-z\u212A].
○ 2nd capture group.
    ○ Match a character in the set [-.0-9A-Z_a-z\u212A] atomically any number of times.
○ Match '@'.
○ 3rd capture group.
    ○ Match with 2 alternative expressions.
        ○ 4th capture group.
            ○ Match '['.
            ○ Loop exactly 3 times.
                ○ 5th capture group.
                    ○ 6th capture group.
                        ○ Match with 4 alternative expressions.
                            ○ Match a sequence of expressions.
                                ○ Match '2'.
                                ○ Match with 2 alternative expressions.
                                    ○ Match a sequence of expressions.
                                        ○ Match an empty string.
                                        ○ Match a character in the set [0-5].
                                    ○ Match a sequence of expressions.
                                        ○ Match an empty string.
                                        ○ Match a character in the set [0-9].
                            ○ Match a sequence of expressions.
                                ○ Match '1'.
                                ○ Match a character in the set [0-9] exactly 2 times.
                            ○ Match a sequence of expressions.
                                ○ Match a character in the set [1-9].
                                ○ Match a character in the set [0-9].
                            ○ Match a character in the set [0-9].
                    ○ Match '.'.
            ○ 7th capture group.
                ○ Match with 4 alternative expressions.
                    ○ Match a sequence of expressions.
                        ○ Match '2'.
                        ○ Match with 2 alternative expressions.
                            ○ Match a sequence of expressions.
                                ○ Match an empty string.
                                ○ Match a character in the set [0-5].
                            ○ Match a sequence of expressions.
                                ○ Match an empty string.
                                ○ Match a character in the set [0-9].
                    ○ Match a sequence of expressions.
                        ○ Match '1'.
                        ○ Match a character in the set [0-9] exactly 2 times.
                    ○ Match a sequence of expressions.
                        ○ Match a character in the set [1-9].
                        ○ Match a character in the set [0-9].
                    ○ Match a character in the set [0-9].
            ○ Match ']'.
        ○ 8th capture group.
            ○ Loop greedily at least once.
                ○ 9th capture group.
                    ○ 10th capture group.
                        ○ Match a character in the set [-0-9A-Za-z\u212A] atomically at least once.
                    ○ Match '.'.
            ○ 11th capture group.
                ○ Match a character in the set [A-Za-z\u212A] atomically at least twice.
○ Match if at the end of the string or if before an ending newline.