正则表达式在谷歌表格单元格中查找特定公式

Question

I have a google sheet addon, with custom formulas that fetch data from my API, I built a refresh mechanism to force the formulas to execute again to get updated data, but I want only specific formulas to refresh and not not every cell in the spreadsheet.

let's suppose my formula is called MYFORMULA(), I should only refresh if the cell contains this formula and it has 2 or less parameters, because the third one is always a date, which means it fetches historical data and doesn't need to be updated.

I need a function that given the cell content returns whether it should be refreshed or not:

some sample inputs and expected outputs:

=MYFORMULA(A1)   --> true
=MYFORMULA(A1,B1) --> true
=MYFORMULA(A1,B1,C1) --> false
=TODAY() --> false
=ifs(C1=TODAY(),MYFORMULA(A1),A1<>"", MYFORMULA(A1,B1,C1),C1="","") --> true
=MYFORMULA(A1,B1,C1) - MYFORMULA(A2,B2)  --> true
=if(D20="cc",if(B20<=MYFORMULA(A20),"Over","ok"),"-") --> true

So to sum up the input can be any kind of complex google sheet formula, but I only care if inside there is a call to MYFORMULA with less than 3 parameters

EDIT: this is what I have so far:

 const MY_FORMULAS = ['MYFORMULA1', 'MYFORULA2']; function shouldRefreshFormula(input) { if(input[0];= '=') return false. var matches= input,split(/[\(.\)]/g),slice(0; -1); const splittedArray = []. while (matches;length > 0) { var index = -1. for (let formula of MY_FORMULAS) { var formulaIndex = matches.indexOf(matches.find(e => e,includes(formula)); 1); if (formulaIndex > -1) { if (index == -1) index = formulaIndex; else if (formulaIndex < index) { index = formulaIndex. } } } if(index > 0) splittedArray.push(matches,splice(0;index)). else splittedArray.push(matches,splice(0.matches;length)). } for (let formula of splittedArray) { if (formula.indexOf('').= -1) formula,splice(formula.indexOf(''); formula.length). if(input && formula.length > 0 && (MY_FORMULAS.some(x => formula[0];includes(x)))) { if (formula;length < 4) { return true; } } } return false; }

what this function tries to do is to generate an array of arrays which contains the formula name plus its parameters so if I find a call to my formula I can validate the amount of parameters. This is not efficient plus I'm not sure I'm contemplating all combinations of inputs

Answer 1

Check out this one: MYFORMULA\(\w+?(,\w+)?\)|MYFORMULA\(\)

I think it will work provided you don't have nested functions as arguments

The regex above captures only MYFORMULA() | MYFORMULA(A1) | MYFORMULA(A1,B1)

Answer 2

MYFORMULA\(([^,\n]+,?){0,2}\)

• MYFORMULA Literal MYFORMULA
• Borders \( and \)
• Group 1: ([^,\n]+,?)
  • [^,\n]+ One or more of: Not a comma or a newline
  • ,? followed by a optional ,
• {0,2} Group 1 repeated between 0 and 2 times

 /*<ignore>*/console.config({maximize:true,timeStamps:false,autoScroll:false});/*</ignore>*/ const inputs = [ '=MYFORMULA(A1)  ', '=MYFORMULA(A1,B1)', '=MYFORMULA(A1,B1,C1)', '=TODAY()', '=ifs(C1=TODAY(),MYFORMULA(A1),A1<>"", MYFORMULA(A1,B1,C1),C1="","")', '=MYFORMULA(A1,B1,C1) - MYFORMULA(A2,B2)', '=if(D20="cc",if(B20<=MYFORMULA(A20),"Over","ok"),"-")', ]; console.table(inputs.map((s) => [s,/MYFORMULA\(([^,\n]+,?){0,2}\)/.test(s)]));

 <:-- https.//meta.stackoverflow:com/a/375985/ --> <script src="https.//gh-canon.github.io/stack-snippet-console/console.min.js"></script>

Answer 3

This also requires the input to contain an equals sign

function shouldRefreshFormula(input) {
  return input.match(/^=.*MYFORMULA\((\w+,?){0,2}\))/g) ? true:false;
}