Find the first occurrence of a character in a string
res = strchr(haystack,char)
:haystack A character string or matrix of character strings : :char a character. : :res A character string or matrix of character strings :
res = strchr(haystack,char) returns the first occurrence of char in the string haystack.
char must contain only one string or as many strings as in haystack (each one being one-character-long).
strchr('This is a sample string','s')
strchr(['This is a sample string','in scilab'],'s')
strchr(['This is a sample string','in scilab'],['s','a'])