regex101: Local Name XPath Improvement V2

Pro

1st Alternative(?<![^/\[(|=<>!+*-])(?!(?:[a-zA-Z][a-zA-Z\d_.:-]*)\()([a-zA-Z][a-zA-Z\d_.:-]*)

Negative Lookbehind(?<![^/\[(|=<>!+*-])

Negated Character Class[^/\[(|=<>!+*-]

/the literal / (47₁₀ / 57₈ / 2F₁₆)

\[the literal [ (91₁₀ / 133₈ / 5B₁₆)

(the literal ( (40₁₀ / 50₈ / 28₁₆)

|the literal | (124₁₀ / 174₈ / 7C₁₆)

=the literal = (61₁₀ / 75₈ / 3D₁₆)

<the literal < (60₁₀ / 74₈ / 3C₁₆)

>the literal > (62₁₀ / 76₈ / 3E₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

+the literal + (43₁₀ / 53₈ / 2B₁₆)

*the literal * (42₁₀ / 52₈ / 2A₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

Negative Lookahead(?!(?:[a-zA-Z][a-zA-Z\d_.:-]*)\()

Non-Capturing Group(?:[a-zA-Z][a-zA-Z\d_.:-]*)

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)

Character Class[a-zA-Z\d_.:-]*

*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)

\da Unicode decimal digit

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 1([a-zA-Z][a-zA-Z\d_.:-]*)

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)

Character Class[a-zA-Z\d_.:-]*

*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)

\da Unicode decimal digit

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

2nd Alternative (?<=\s(?!and|or|mod|div))(?!(?:[a-zA-Z][a-zA-Z\d_.:-]*)\()([a-zA-Z][a-zA-Z\d_.:-]*)

Positive Lookbehind(?<=\s(?!and|or|mod|div))

\sa Unicode whitespace character

Negative Lookahead(?!and|or|mod|div)

1st Alternativeand

andthe literal text and (case sensitive)

2nd Alternativeor

orthe literal text or (case sensitive)

3rd Alternativemod

modthe literal text mod (case sensitive)

4th Alternativediv

divthe literal text div (case sensitive)

Negative Lookahead(?!(?:[a-zA-Z][a-zA-Z\d_.:-]*)\()

Non-Capturing Group(?:[a-zA-Z][a-zA-Z\d_.:-]*)

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)

Character Class[a-zA-Z\d_.:-]*

*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)

\da Unicode decimal digit

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

Group 2([a-zA-Z][a-zA-Z\d_.:-]*)

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)

Character Class[a-zA-Z\d_.:-]*

*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)

\da Unicode decimal digit

_the literal _ (95₁₀ / 137₈ / 5F₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

:the literal : (58₁₀ / 72₈ / 3A₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

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

25 tokens

Regular Expression

(?<![^/\[(|=<>!+*-])(?!(?:[a-zA-Z][a-zA-Z\d_.:-]*)\()([a-zA-Z][a-zA-Z\d_.:-]*)
|
(?<=\s(?!and|or|mod|div))(?!(?:[a-zA-Z][a-zA-Z\d_.:-]*)\()([a-zA-Z][a-zA-Z\d_.:-]*)

A/B[boolean(g[@s='2']) = false() and d/f[sds=ds]]/@sd

Extraction

A/B[boolean(g[@s='2']) = false() and d/f[sds=ds]]/@sd