Documentation ¶
Index ¶
Constants ¶
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const MaximumNumberOfParamsLimit = 255
MaximumNumberOfParamsLimit for the function
Variables ¶
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var ( AbsFunction = Function{ Name: "abs", Arity: 1, FunctionImpl: absImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the absolute value of a number.\n Returns a number.", } CbrtFunction = Function{ Name: "cbrt", Arity: 1, FunctionImpl: cbrtImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the cube root of a number.\n Returns a number.", } CeilFunction = Function{ Name: "ceil", Arity: 1, FunctionImpl: ceilImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the smallest integer greater than or equal to a number.\n Returns a number.", } ExpFunction = Function{ Name: "exp", Arity: 1, FunctionImpl: expImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns E^x, where x is the argument, and E is Euler's constant (2.718…), the base of the natural logarithm.\n Returns a number.", } FloorFunction = Function{ Name: "floor", Arity: 1, FunctionImpl: floorImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the largest integer less than or equal to a number.\n Returns a number.", } LnFunction = Function{ Name: "ln", Arity: 1, FunctionImpl: lnImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the natural logarithm of a number.\n Returns a number.", } Log10Function = Function{ Name: "log10", Arity: 1, FunctionImpl: log10Impl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the base 10 logarithm of a number.\n Returns a number.", } Log2Function = Function{ Name: "log2", Arity: 1, FunctionImpl: log2Impl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the base 2 logarithm of a number.\n Returns a number.", } MaxFunction = Function{ Name: "max", Arity: -1, MinArity: 1, MaxArity: MaximumNumberOfParamsLimit, FunctionImpl: maxImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the largest number from a list, where numbers are separated by commas.\n Returns a number", } MinFunction = Function{ Name: "min", Arity: -1, MinArity: 1, MaxArity: MaximumNumberOfParamsLimit, FunctionImpl: minImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the smallest number from a list, where numbers are separated by commas.\n Returns a number.", } PowFunction = Function{ Name: "pow", Arity: 2, FunctionImpl: powImpl, ParamsType: []uint{datatype.NumberType, datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns base to the exponent power.\n Returns a number.", } RoundFunction = Function{ Name: "round", Arity: 1, FunctionImpl: roundImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Rounds a number to the nearest integer.\n Returns a number.", } SignFunction = Function{ Name: "sign", Arity: 1, FunctionImpl: signImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the sign of a number, indicating whether it's positive (1), negative (-1) or zero (0).\n Returns a number.", } SqrtFunction = Function{ Name: "sqrt", Arity: 1, FunctionImpl: sqrtImpl, ParamsType: []uint{datatype.NumberType}, ReturnType: datatype.NumberType, Documentation: "Returns the square root of a number.\n Returns a number.", } TonumberFunction = Function{ Name: "toNumber", Arity: 1, FunctionImpl: toNumberImpl, ParamsType: []uint{datatype.StringType}, ReturnType: datatype.NumberType, Documentation: "Converts a text string to a number.\n Returns a number.", } ConcantFunction = Function{ Name: "concat", Arity: -1, MinArity: 1, MaxArity: MaximumNumberOfParamsLimit, FunctionImpl: concatImpl, ParamsType: []uint{datatype.StringType}, ReturnType: datatype.StringType, Documentation: "Concatenates (combines) text strings.\n Returns a text string.", } ContainsFunction = Function{ Name: "contains", Arity: 2, FunctionImpl: containsImpl, ParamsType: []uint{datatype.StringType, datatype.StringType}, ReturnType: datatype.BooleanType, Documentation: "Tests whether a text string contains another text string.\n Returns a boolean.", } JoinFunction = Function{ Name: "join", Arity: -1, MinArity: 2, MaxArity: MaximumNumberOfParamsLimit, FunctionImpl: joinImpl, ParamsType: []uint{datatype.StringType}, ReturnType: datatype.StringType, Documentation: "Combines text strings, with a specified delimiter.\n Returns a text string.", } LengthFunction = Function{ Name: "length", Arity: 1, FunctionImpl: lengthImpl, ParamsType: []uint{datatype.StringType}, ReturnType: datatype.NumberType, Documentation: "Returns the number of characters in a text string.\n Returns a number.", } ReplaceFunction = Function{ Name: "replace", Arity: 4, FunctionImpl: replaceImpl, ParamsType: []uint{datatype.StringType, datatype.StringType, datatype.StringType, datatype.NumberType}, ReturnType: datatype.StringType, Documentation: "Replaces the n match within a text string with a specified new text string.\n Returns a text string.", } ReplaceAllFunction = Function{ Name: "replaceAll", Arity: 3, FunctionImpl: replaceAllImpl, ParamsType: []uint{datatype.StringType, datatype.StringType, datatype.StringType}, ReturnType: datatype.StringType, Documentation: "Replaces all matches within a text string with a specified new text string.\n Returns a text string.", } SliceFunction = Function{ Name: "slice", Arity: 3, FunctionImpl: sliceImpl, ParamsType: []uint{datatype.StringType, datatype.NumberType, datatype.NumberType}, ReturnType: datatype.StringType, Documentation: "Extracts a substring from a text string, given a specified starting point and end point.\n Returns a text string", } DefaultFunctions = []Function{ AbsFunction, CbrtFunction, CeilFunction, ExpFunction, FloorFunction, LnFunction, Log2Function, Log10Function, MaxFunction, MinFunction, PowFunction, RoundFunction, SignFunction, SqrtFunction, TonumberFunction, ConcantFunction, ContainsFunction, JoinFunction, LengthFunction, ReplaceFunction, ReplaceAllFunction, SliceFunction, } )
Functions
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var E, _ = decimal.NewFromString("2.71828182845904523536028747135266249775724709369995957496696763")
E Euler constant
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var PI, _ = decimal.NewFromString("3.14159265358979323846264338327950288419716939937510582097494459")
PI constant
Functions ¶
This section is empty.
Types ¶
type Function ¶
type Function struct { Name string Arity int MinArity uint MaxArity uint FunctionImpl func(args []interface{}) (interface{}, error) ParamsType []uint VerifyArgs func(arguments []interface{}) error ReturnType uint Documentation string ArgsDocumentation string ExampleDocumention string }
Function struct
func (*Function) CheckNumberOfArgs ¶
CheckNumberOfArgs in the function
func (*Function) CheckTypeOfArgs ¶
CheckTypeOfArgs in the function
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