regex101: Dice-Throwing notation

^start of line

Group numberExpression(?<numberExpression>(?<numberDice>[0-9]+)(?<gaussExpression>[oO]?(?<gaussDices>[0-9])+(?<gaussModifier>[\+\-])?)?)?

?repeats the group contents below at most once:

Group numberDice(?<numberDice>[0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

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

Group gaussExpression(?<gaussExpression>[oO]?(?<gaussDices>[0-9])+(?<gaussModifier>[\+\-])?)?

?repeats the group contents below at most once:

Character Class[oO]?

?matches at most one character from the set below:

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case sensitive)

Othe literal O (79₁₀ / 117₈ / 4F₁₆) (case sensitive)

Group gaussDices(?<gaussDices>[0-9])+

+repeats the group contents below at least once:

Character Class[0-9]

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

Group gaussModifier(?<gaussModifier>[\+\-])?

?repeats the group contents below at most once:

Character Class[\+\-]

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Character Class[dD]

dthe literal d (100₁₀ / 144₈ / 64₁₆) (case sensitive)

Dthe literal D (68₁₀ / 104₈ / 44₁₆) (case sensitive)

Group faces(?<faces>[0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

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

Group exploding(?<exploding>[¡!]{0,2})

Character Class[¡!]{0,2}

{0,2}matches between 0 and 2 characters from the set below:

¡the literal ¡ (161₁₀ / 241₈ / A1₁₆)

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Group modifierExpression(?<modifierExpression>[\+\-](?<modifierValue>[0-9]+))?

?repeats the group contents below at most once:

Character Class[\+\-]

\+the literal + (43₁₀ / 53₈ / 2B₁₆)

\-the literal - (45₁₀ / 55₈ / 2D₁₆)

Group modifierValue(?<modifierValue>[0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

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

Group thresholdExp(?<thresholdExp>:(?<thresholdValue>[0-9]+))?

?repeats the group contents below at most once:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

Group thresholdValue(?<thresholdValue>[0-9]+)

Character Class[0-9]+

+matches at least one character from the set below:

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

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

^(?<numberExpression>(?<numberDice>[0-9]+)(?<gaussExpression>[oO]?(?<gaussDices>[0-9])+(?<gaussModifier>[\+\-])?)?)?[dD](?<faces>[0-9]+)(?<exploding>[¡!]{0,2})(?<modifierExpression>[\+\-](?<modifierValue>[0-9]+))?(?<thresholdExp>:(?<thresholdValue>[0-9]+))?

New

Common dice:
1d2 (coin flip)
2d4
3d6
4d8
5d10
6d12
7d20
8d30
9d100

Gauss notation:
1o3d10 Basic notation
1o3+d10 Gauss with gauss-modifier
1o3-d10 Gauss with gauss-modifier
1o5d8 Gauss with other configurations

Exploding dice:
1d10! Exploding
1d10¡ Imploding
1d10!¡ Both, exploding and imploding
1d10¡! Another possible arrangement
1o3d10! Gauss exploding

Adding and substracting:
1d10+20
1d10-3 
1o3d10+3 Gauss with modifiers
1o3d10!-3 Gauss with exploding dice and modifiers

Threshold:
1d10:6
1d10+2:8 Modifier and threshold
1d10!+1:8 Exploding, modifier and threshold
1o3+d10!+3:8 Gauss with gauss-modifier, exploding option, modifier and threshold