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Add formula function BAHTTEXT support #2187

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Add formula function BAHTTEXT support #2187

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8158cad
Add formula function BAHTTEXT support
Now-Shimmer Jul 29, 2025
31c58a0
Merge branch 'qax-os:master' into formula
Now-Shimmer Aug 13, 2025
07093cb
Fix code review issues, and complete formula function implementation
Now-Shimmer Aug 13, 2025
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28 changes: 28 additions & 0 deletions calc.go
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Original file line number Diff line number Diff line change
Expand Up @@ -211,6 +211,17 @@ var (
criteriaL,
criteriaG,
}
// defines numbers text in the Thai used for the BAHTTEXT formula function.
th0 = "ศูนย์"
th1 = "หนึ่ง"
th2 = "สอง"
th3 = "สาม"
th4 = "สี่"
th5 = "ห้า"
th6 = "หก"
th7 = "เจ็ด"
th8 = "แปด"
th9 = "เก้า"
)

// calcContext defines the formula execution context.
Expand Down Expand Up @@ -384,6 +395,7 @@ type formulaFuncs struct {
// AVERAGEA
// AVERAGEIF
// AVERAGEIFS
// BAHTTEXT
// BASE
// BESSELI
// BESSELJ
Expand Down Expand Up @@ -1819,6 +1831,22 @@ func formulaCriteriaEval(val formulaArg, criteria *formulaCriteria) (result bool

// Engineering Functions

// BAHTTEXT function converts a number into Thai text, with the suffix "Baht".
// The syntax of the function is:
//
// BAHTTEXT(number)
func (fn *formulaFuncs) BAHTTEXT(argsList *list.List) formulaArg {
if argsList.Len() != 1 {
return newErrorFormulaArg(formulaErrorVALUE, "BAHTTEXT requires 1 numeric argument")
}
token := argsList.Front().Value.(formulaArg)
number := token.ToNumber()
if number.Type != ArgNumber {
return newErrorFormulaArg(formulaErrorVALUE, number.Error)
}
return newStringFormulaArg(text)
}

// BESSELI function the modified Bessel function, which is equivalent to the
// Bessel function evaluated for purely imaginary arguments. The syntax of
// the Besseli function is:
Expand Down
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