Regular Expressions 101

Pro

^start of line

Group variable(?<variable>\w+)

\w+any word character, repeated at least once

Non-Capturing Group(?:\.(?<subvariable>\w+(?:\.\w+)*))??

??repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group subvariable(?<subvariable>\w+(?:\.\w+)*)

\w+any word character, repeated at least once

Non-Capturing Group(?:\.\w+)*

*repeats the group contents below any number of times:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\w+any word character, repeated at least once

Non-Capturing Group(?:\.(?<method>\w+)$(?<parameter>[^{}%\n]*)$)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Group method(?<method>\w+)

\w+any word character, repeated at least once

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group parameter(?<parameter>[^{}%\n]*)

Negated Character Class[^{}%\n]*

*matches any number of characters outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

%the literal % (37₁₀ / 45₈ / 25₁₆)

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

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

$end of line

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

^(?<variable>\w+)(?:\.(?<subvariable>\w+(?:\.\w+)*))??(?:\.(?<method>\w+)\((?<parameter>[^{}%\n]*)\))?$

New

core.settings
 => $core['settings'] 
core.set(param1, param2)
 => $core->set('param1', 'param2')
core.settings
core.get(param)
core.settings.time
core.settings.time.set(param)