Javascript Regex doesn't match the recurring pattern

Question

Input:"[3, 4]", "[1, 2, 7, 7]"
Input:"[13, 4]", "[1, 2, 3, 6, 14]"
Input: "[5, 5]", "[1, 2, 3]"

\"\s*\[[0-9]\s*\,\s*[0-9]\]\"\s*\,\s*\"\[[0-9]\s*\,

This was what I tried to validate the above inputs. with what I tried I couldn't get the last part of the string validated. the second array of data can be any number of inputs. The above regex applies until the first comma of the second array. couldn't now write a general expression for any number of inputs after that.

the above inputs. ... are they literally "[3, 4]", "[1, 2, 7, 7]" ... including " and [] - check this — Jaromanda X
– Jaromanda X, Commented Oct 15, 2020 at 4:46
Yes they are. I checked the one you mentioned. but no. That is not it. I need the full string to be validated including all the "" [] and , — rathindu_w
– rathindu_w, Commented Oct 15, 2020 at 5:05
I know ... I was showing you what yours does in a place you can fiddle with it and get it right :p — Jaromanda X
– Jaromanda X, Commented Oct 15, 2020 at 5:08
I use it to build regex. but the question was that I couldn't do the final part — rathindu_w
– rathindu_w, Commented Oct 15, 2020 at 5:33

user13843220 · Accepted Answer · 2020-10-15 05:06:25Z

1

If I understand correctly

^\s*"\s*\[\s*[0-9]+\s*(?:\,\s*[0-9]+\s*)*\]\s*"(?:\s*,\s*"\s*\[\s*[0-9]+\s*(?:\,\s*[0-9]+\s*)*\]\s*")*\s*$

https://regex101.com/r/PpZy8I/1

 ^                  # Begin of string     
 \s*                # Leading wsp
 " \s*              # Quote start of array
 \[                 # Array opening
 \s* [0-9]+ \s* 
 (?:                # Optional nesting elements comma plus digits
    \, \s* 
    [0-9]+ \s* 
 )*
 \]                 # Array close
 \s* 
 "                  # Quote end of array    
 
 (?:                # Optional many more arrays
    \s* , \s* 
    " \s* 
    \[ 
    \s* [0-9]+ \s* 
    (?:
       \, \s* 
       [0-9]+ \s* 
    )*
    \] 
    \s* 
    "     
 )*
 \s*                # Trailing wsp
 $                  # End of string

answered Oct 15, 2020 at 5:06

user13843220

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