regex101: URI generic parser

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Group protocol(?<protocol>(?:[^:]+)s?:\/\/)?

?repeats the group contents below at most once:

Non-Capturing Group(?:[^:]+)

Negated Character Class[^:]+

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

s?optionally matches the literal s (115₁₀ / 163₈ / 73₁₆) (case sensitive)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Non-Capturing Group(?:(?<user>[^:\n\r]+):(?<pass>[^@\n\r]+)@)?

?repeats the group contents below at most once:

Group user(?<user>[^:\n\r]+)

Negated Character Class[^:\n\r]+

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group pass(?<pass>[^@\n\r]+)

Negated Character Class[^@\n\r]+

+matches at least one character outside the set below:

@the literal @ (64₁₀ / 100₈ / 40₁₆)

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

@the literal @ (64₁₀ / 100₈ / 40₁₆)

Group host(?<host>(?:www\.)?(?:[^:\/\n\r]+)(?::(?<port>\d+))?)

Non-Capturing Group(?:www\.)?

?repeats the group contents below at most once:

wwwthe literal text www (case sensitive)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Non-Capturing Group(?:[^:\/\n\r]+)

Negated Character Class[^:\/\n\r]+

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

Non-Capturing Group(?::(?<port>\d+))?

?repeats the group contents below at most once:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group port(?<port>\d+)

\d+a digit, repeated at least once

\/?optionally matches the literal / (47₁₀ / 57₈ / 2F₁₆)

Group request(?<request>[^?#\n\r]+)?

?repeats the group contents below at most once:

Negated Character Class[^?#\n\r]+

+matches at least one character outside the set below:

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

#the literal # (35₁₀ / 43₈ / 23₁₆)

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

\??optionally matches the literal ? (63₁₀ / 77₈ / 3F₁₆)

Group query(?<query>[^#\n\r]*)?

?repeats the group contents below at most once:

Negated Character Class[^#\n\r]*

*matches any number of characters outside the set below:

#the literal # (35₁₀ / 43₈ / 23₁₆)

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

\#?optionally matches the literal # (35₁₀ / 43₈ / 23₁₆)

Group anchor(?<anchor>[^\n\r]*)?

?repeats the group contents below at most once:

Negated Character Class[^\n\r]*

*matches any number of characters outside the set below:

\na line-feed (newline) character (ASCII 10)

\ra carriage return (ASCII 13)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

x modifier: extended. Ignores unescaped whitespace and comments outside character classes

25 tokens

Regular Expression

(?<protocol>(?:[^:]+)s?:\/\/)?(?:(?<user>[^:\n\r]+):(?<pass>[^@\n\r]+)@)?(?<host>(?:www\.)?(?:[^:\/\n\r]+)(?::(?<port>\d+))?)\/?(?<request>[^?#\n\r]+)?\??(?<query>[^#\n\r]*)?\#?(?<anchor>[^\n\r]*)?

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Regular Expressions 101

Regular Expression

Substitution