Format cell, If word from list in cell

Question

I'm trying to color tag cells according to keywords they may contain. I've searched just about everywhere, and have tried various applications of the Search and Find functions to no avail.

Imagine I have the following cells:

[You] [ggg] [123]

and I want to highlight only the cells that contain:

numbers = [0,1,2,3,4,5,6,7,8,9]

What custom formula would I use to format only the cells containing numbers? Highlighting:

123

This should work as well for:

[yes] [nah] [yah]
affirmativeResponses = [yes,yah,ya,yup]
highlights: yes, yah

Pseudo code:

for i in [yes,yah,ya,yup]:
    if i in cell:
        highlight(cell, green)

Answer 1

• for all numbers:

  =IF(ISNUMBER(A1), 1)

  

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• for specific digits (2 and 3):

  =REGEXEXTRACT(TO_TEXT(A1), "2|3")

  

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• for exact words:

  =REGEXEXTRACT(A1, "yes|nah|yah")

  

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• for partial (containing) matches:

  =REGEXEXTRACT(A1, "yes|nah|yah")