Get span until character in string
res = strcspn(string_one,string_two)
:string_one A character string or matrix of character strings : :string_two A character string or matrix of character strings : :res matrix. :
res = strcspn(string_one,string_two) Scans string_one for the first occurrence of any of the characters that are part of string_two, returning the number of characters of string_one read before this first occurrence.
string_one must have same dimensions than string_two or string_one must be a string.
strcspn("fcba73","1234567890")
strcspn(["fcba73","f7cba73"],"1234567890")
strcspn(["fcba73","f7cba73"],["312","34567890"])