regex101: PCRE (Legacy) Match Workspace

extendthe literal text extend (case sensitive)

\s+any whitespace character, repeated at least once

Group 1([^n]*)

Negated Character Class[^n]*

*matches any number of characters outside the set below:

nthe literal n (110₁₀ / 156₈ / 6E₁₆) (case sensitive)

Non-Capturing Group(?:(?P<phase>colloid|mineral|basis|isotope|solid-solution)\s+)?

?repeats the group contents below at most once:

Group phase(?P<phase>colloid|mineral|basis|isotope|solid-solution)

1st Alternativecolloid

colloidthe literal text colloid (case sensitive)

2nd Alternativemineral

mineralthe literal text mineral (case sensitive)

3rd Alternativebasis

basisthe literal text basis (case sensitive)

4th Alternativeisotope

isotopethe literal text isotope (case sensitive)

5th Alternativesolid-solution

solid-solutionthe literal text solid-solution (case sensitive)

\s+any whitespace character, repeated at least once

Group species(?P<species>[^\n ]+)

Negated Character Class[^\n ]+

+matches at least one character outside the set below:

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

the literal (32₁₀ / 40₈ / 20₁₆)

\s+any whitespace character, repeated at least once

Group 4({(?P<content>((?:[^{}]++|(?4))*))})

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Group content(?P<content>((?:[^{}]++|(?4))*))

Group 6((?:[^{}]++|(?4))*)

Non-Capturing Group(?:[^{}]++|(?4))*

*repeats the group contents below any number of times:

1st Alternative[^{}]++

Negated Character Class[^{}]++

++matches at least one character outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative(?4)

(?4)calls group 4 as a subroutine

}the literal } (125₁₀ / 175₈ / 7D₁₆)

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

Search reference

Regular Expression

extend\s+([^n]*)(?:(?P<phase>colloid|mineral|basis|isotope|solid-solution)\s+)?(?P<species>[^\n ]+)\s+({(?P<content>((?:[^{}]++|(?4))*))})

New

extend mineral Uraninite {
    kinetics {
        rate = -3.2e-08 mol/m2/s
        area = Uraninite
        y-term, species = Uraninite
        w-term {
            species = H[+]
            power = 0.37
        }
    }
    kinetics {
        rate = 3.2e-09 mol/m2/s
        area = Uraninite
        y-term, species = Uraninite
        w-term {
            species = H[+]
            power = 0.37
        }
    }
}

Regular Expressions 101

Regular Expression

Substitution