Regular Expressions 101

Explanation

Pro

Group 1((?:(?# path without "" )(?<opening>(?# 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%')(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?(?<montage>\b[a-zA-Z]:[\/\\])|(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))|(?:%\w+%[\/\\]?))(?:(?# directory btw // )[^\/\\<>:"|?\n\r ][^\/\\<>:"|?\n\r]*(?<![ ])[\/\\])*(?:(?#we search for fileName only if next character is pathFriendly)(?=[^\/\\<>:"'|?\n\r;, ])(?:(?#name file ? dir ?)(?:[^\/\\<>:"|?\n\r;, .](?: (?=[\w\-]))?(?:\*(?!= ))?(?!(?&montage)))+)?(?:(?#extention)\.\w+)*))|(?:(?# path quoted "" or '' )["'](?&opening)(?=.*?["'])(?:[^\/\\<>:'"|?\n\r]+[\/\\]?)+?["']))

1st Alternative(?:(?# path without "" )(?<opening>(?# 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%')(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?(?<montage>\b[a-zA-Z]:[\/\\])|(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))|(?:%\w+%[\/\\]?))(?:(?# directory btw // )[^\/\\<>:"|?\n\r ][^\/\\<>:"|?\n\r]*(?<![ ])[\/\\])*(?:(?#we search for fileName only if next character is pathFriendly)(?=[^\/\\<>:"'|?\n\r;, ])(?:(?#name file ? dir ?)(?:[^\/\\<>:"|?\n\r;, .](?: (?=[\w\-]))?(?:\*(?!= ))?(?!(?&montage)))+)?(?:(?#extention)\.\w+)*))

Non-Capturing Group(?:(?# path without "" )(?<opening>(?# 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%')(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?(?<montage>\b[a-zA-Z]:[\/\\])|(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))|(?:%\w+%[\/\\]?))(?:(?# directory btw // )[^\/\\<>:"|?\n\r ][^\/\\<>:"|?\n\r]*(?<![ ])[\/\\])*(?:(?#we search for fileName only if next character is pathFriendly)(?=[^\/\\<>:"'|?\n\r;, ])(?:(?#name file ? dir ?)(?:[^\/\\<>:"|?\n\r;, .](?: (?=[\w\-]))?(?:\*(?!= ))?(?!(?&montage)))+)?(?:(?#extention)\.\w+)*))

Comment: path without ""

Group opening(?<opening>(?# 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%')(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?(?<montage>\b[a-zA-Z]:[\/\\])|(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))|(?:%\w+%[\/\\]?))

1st Alternative(?# 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%')(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?(?<montage>\b[a-zA-Z]:[\/\\])

Comment: 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%'

Group UNCPrefix(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?

?repeats the group contents below at most once:

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[?.]

?the literal ? (63₁₀ / 77₈ / 3F₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:UNC[\/\\])?

?repeats the group contents below at most once:

UNCthe literal text UNC (case sensitive)

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Group montage(?<montage>\b[a-zA-Z]:[\/\\])

\ban ASCII word boundary

Character Class[a-zA-Z]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

2nd Alternative(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))

Non-Capturing Group(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))

1st Alternative(?:(?&UNCPrefix))

Non-Capturing Group(?:(?&UNCPrefix))

(?&UNCPrefix)calls group UNCPrefix as a subroutine

2nd Alternative(?:[\/\\][\/\\](?!(?&montage)))

Non-Capturing Group(?:[\/\\][\/\\](?!(?&montage)))

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Character Class[\/\\]

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Negative Lookahead(?!(?&montage))

(?&montage)calls group montage as a subroutine

3rd Alternative(?:%\w+%[\/\\]?)

Non-Capturing Group(?:%\w+%[\/\\]?)

Non-Capturing Group(?:(?# directory btw // )[^\/\\<>:"|?\n\r ][^\/\\<>:"|?\n\r]*(?<![ ])[\/\\])*

Non-Capturing Group(?:(?#we search for fileName only if next character is pathFriendly)(?=[^\/\\<>:"'|?\n\r;, ])(?:(?#name file ? dir ?)(?:[^\/\\<>:"|?\n\r;, .](?: (?=[\w\-]))?(?:\*(?!= ))?(?!(?&montage)))+)?(?:(?#extention)\.\w+)*)

2nd Alternative(?:(?# path quoted "" or '' )["'](?&opening)(?=.*?["'])(?:[^\/\\<>:'"|?\n\r]+[\/\\]?)+?["'])

Global pattern flags

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

Unit Test Summary

No unit tests

Add a test to get started

Quick Reference

25 tokens

Regular Expression

((?:(?# path without "" )(?<opening>(?# 'C:/', '//', '//./<UNC/C:>', '//?/<UNC/C:>' or '%VariableWindows%')(?<UNCPrefix>[\/\\][\/\\][?.][\/\\](?:UNC[\/\\])?)?(?<montage>\b[a-zA-Z]:[\/\\])|(?:(?:(?&UNCPrefix))|(?:[\/\\][\/\\](?!(?&montage))))|(?:%\w+%[\/\\]?))(?:(?# directory btw // )[^\/\\<>:"|?\n\r ][^\/\\<>:"|?\n\r]*(?<![ ])[\/\\])*(?:(?#we search for fileName only if next character is pathFriendly)(?=[^\/\\<>:"'|?\n\r;, ])(?:(?#name file ? dir ?)(?:[^\/\\<>:"|?\n\r;, .](?: (?=[\w\-]))?(?:\*(?!= ))?(?!(?&montage)))+)?(?:(?#extention)\.\w+)*))|(?:(?# path quoted "" or '' )["'](?&opening)(?=.*?["'])(?:[^\/\\<>:'"|?\n\r]+[\/\\]?)+?["']))

Unit Tests

There are no unit tests.