Regular Expressions 101

Pro

Group 1(\w*)

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

Branch Reset Group(?|\$`([^`]*)`|\$([^\s$]+))

1st Alternative\$`([^`]*)`

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

`the literal ` (96₁₀ / 140₈ / 60₁₆)

Group 2([^`]*)

Negated Character Class[^`]*

*matches any number of characters outside the set below:

`the literal ` (96₁₀ / 140₈ / 60₁₆)

2nd Alternative\$([^\s$]+)

\$the literal $ (36₁₀ / 44₈ / 24₁₆)

Group 2([^\s$]+)

Negated Character Class[^\s$]+

+matches at least one character outside the set below:

\sany whitespace character

$the literal $ (36₁₀ / 44₈ / 24₁₆)

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(\w*)(?|\$`([^`]*)`|\$([^\s$]+))

New

qux$foo$bar

qux$foo$bar; input$test$a$a
qux[["foo"]][["bar"]]; input[["test"]][["a"]][["a"]]

qux$`foo`; bar$`baz`; x$uvw
qux[["foo"]]; bar[["baz"]]; x[["uvw"]]


qux$`fo o`
q_ux$f_o_o$b.a_r

Extraction

qux$foo$bar

qux$foo$bar; input$test$a$a
qux[["foo"]][["bar"]]; input[["test"]][["a"]][["a"]]

qux$`foo`; bar$`baz`; x$uvw
qux[["foo"]]; bar[["baz"]]; x[["uvw"]]


qux$`fo o`
q_ux$f_o_o$b.a_r