String Functions

The String menu contains the following functions:

• Contains: Checks whether the string in the first argument contains the string in the second argument string. If the first string contains the second, the function returns Boolean true; otherwise it returns false.

• Normalize Space: Returns the string in the argument with whitespace normalized by stripping leading and trailing whitespace and by replacing sequences of whitespace characters with a single space.

• String: Converts the given object to a string.

• Starts With: Checks whether the string in the first argument starts with the string in the second argument, and if it does the function returns Boolean true. Otherwise, the function returns false.

• String Length: Returns the number of characters in the input string.

• Substring: Returns the substring of the first argument starting at the position specified in the second argument with the length specified in the third argument. The position of the first character is 1, the position of the second character is 2, and so on. The third argument is optional. If the third argument is not specified, then the function returns the substring starting at the position specified in the second argument and continuing to the end of the string.

• Substring Before: Returns the substring of the string in the first argument that precedes the first occurrence of the string in the second argument. If the string in the first argument does not contain the second argument string, the function returns an empty string.

• Substring After: Returns the substring of the string in the first argument string that follows the first occurrence of the string in the second argument. If the string in the first argument does not contain the second argument string, the function returns an empty string.

• Translate: Returns the string in the first argument, but with occurrences of characters in the second argument replaced by the character at the corresponding position in the third argument.

• Concat: Returns the concatenation of the arguments.

• String Literal: Allows you to specify a literal string that can then be mapped to another argument or to a tree node.