regex101: Python Match Workspace

1st Alternative(?P<Alternation1> \$\{(?P<braced>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+) \} )

Group Alternation1(?P<Alternation1> \$\{(?P<braced>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+) \} )

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

\{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group braced(?P<braced>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+)

Character Class[_a-zA-Z]

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

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

Character Class[a-zA-Z0-9]*

*matches any number of characters from the set below:

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

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Non-Capturing Group(?::[_a-zA-Z]\w*)+

+repeats the group contents below at least once:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[_a-zA-Z]

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

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

\w*a Unicode word character, repeated any number of times

\}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative (?P<Alternation2> \$(?P<named>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+ ) )

Group Alternation2(?P<Alternation2> \$(?P<named>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+ ) )

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Group named(?P<named>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+ )

Character Class[_a-zA-Z]

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

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

Character Class[a-zA-Z0-9]*

*matches any number of characters from the set below:

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

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

0-9one character from 0 (48₁₀) to 9 (57₁₀)

Non-Capturing Group(?::[_a-zA-Z]\w*)+

+repeats the group contents below at least once:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Character Class[_a-zA-Z]

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

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

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

\w*a Unicode word character, repeated any number of times

Global pattern flags

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

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

Search reference

Regular Expression

(?P<Alternation1>
     \$\{(?P<braced>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+)
     \}
     )
     |
     (?P<Alternation2>
      \$(?P<named>[_a-zA-Z][a-zA-Z0-9]*(?::[_a-zA-Z]\w*)+
     )
    )

New

asdasd $asd:sd + ${asd123:asd} $HOME $$asd

Regular Expressions 101

Regular Expression

Extraction