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[](http://www.rolisteam.org)
# DiceParser
Rolisteam Dice Parser
## Grammar
The grammar is something like this:
```
Command =: Instruction [';',Instruction]*
Instruction =: Expression
Expression =: number | number Dice DiceOperation | ScalarOperator Expression | string | variable Expression
Dice =: DiceOperator Number(faces) | DiceOperator ListOfValues
DiceOperator =: D | L
DiceOperation =: Keep | KeepAndExplose | Sort | Count | Reroll | If | Explose | RerollAndAdd | Jumpbackward | Merge | Filter | Split | Parenthese | Count | Paint | Group
ScalarOperator =: [x,-,*,x,/]
number =: [0-9]+ | constantValue
constantValue =: ${id | label}
id=[_,a-z][_,A-z,0-9]*
label=[_,a-z][_,A-z,0-9,é,è,ç,û,ê,â]*
variable = ${[0-9]+}
Validator =: BooleanValidator | RangeValidator | CompositeValidator
CompositeValidator =: Validator LogicOpetator Validator
LogicOpetator =: = | > | => | < | =<
RangeValidator =: [ number - number ]
BooleanValidator =: number | [operator number] |
ListOfValue=: String[Range],ListOfValue | String[Range]
String =: [A-z0-9]+
Keep =: k Number
KeepAndExplose =: K number
Reroll =: r
Explosing =: e
RerollOnceAndAdd =: a
RerollAndAdd =: A
Painter =: p
Split =: u
Group =: g
Sort =: s
If =: i compareMethod [Validator] {Expression}[{Expression}]
Paint =: p [ Count : color ]
Group =: number
Explose =: e Validator
Jumpbackward =: @DiceOperation
Merge =: m | m Expression
Filter =: f Validator
Parenthese =: (expression)
Count =: c Validator
```
## Example:
### 3D100
Roll 3 dice with 100 faces
### 10D10e[=10]s
Roll 10 dice with 10 faces, 10 exploses, and sort the result.
### 100291D66666666s
roll 100291 dice with 66666666666 faces and sort result
### 15D10c[>7]
roll 15 dice with 10 faces and it counts number of dice which are above 7
### 1D8+2D6+7
roll 1 die with 8 faces and add the result to 2 dice with 6 faces and add 7.
### D25
roll 1 die with 25 faces
### 88-1D20
88 minus the value of 1 die of 20 faces
### 8+8+8
compute: 24
### 100/28*3
compute: 100/28 = 3
3*3 = 9
More examples at : https://github.com/Rolisteam/DiceParser/blob/master/HelpMe.md
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