Xcalc: Utility Functions

Utility Functions

str_contains(str, find)

• String contains function

• Type: Function

• Determines whether str contains substring find

str_list(str)

• Converts str to a list

• Type: Function

• Returns str as a list

ls_str(list)

• Converts list to a string

• Type: Function

ls_contains(list, value)

• Returns the index of val in list; 0 otherwise

• Type: Function

str_char_at(str, i)

• Type: Function

• Returns the char (as string) at i in str

parse_fn(function)

• Type: Program

• Stores function into f(x)