String Demo

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What information is available about a String?

A String type has the following members:

Integer AsInteger

Answer the string converted to an integer

Object Contains(Object obj)

Determine whether this string contains another string

Object Equals(Object obj)

Determine whether this object is equal to another object

Object EqualsCaseInsensitive(Object obj)

Determine whether this string is equal to another string (ignoring case)

Integer IndexOf(Object obj)

Answer an integer giving the first index of the provided string, or -1 if the string does not contain the provided string.

Integer Length

Answer the number of characters in this string

String Repeat(Integer count)

Answer a new string than is the concatenation of the given number of copies of this string

String Reverse

Answer a copy of this string with the characters reversed

String Substring(Integer index, Integer length {optional})

Answer a substring of this string starting at the given character and possibly limited to the given number of characters

Questions

Question

How can I parse a string? E.g, divide a string into tokens divided by delimiters, find/replace of substrings, regexp comparison, etc.

Question

How do I do a Not Equals? In the snippet below I want to exclude anything that begins with an underscore

 { one | one.Name.Substring(0,1).Equals("_")}.Collect

Examples

Compare two strings

 "hello".Equals("hello")

true

 "Hello".EqualsCaseInsensitive("HELLO")

true

Check to see if a string contains another string

 "Hello Dolly".Contains("Dolly")

true

 "Hello Dolly".Contains("Panda")

false

Repeat

 "x".Repeat(5)

xxxxxxxxxx

Length

 "".Length

0

 "!!!".Repeat(1000).Length

3000

Reverse

 "Reverse".Reverse

esreveR

Substring

 "FlexWiki".Substring(0,4)

Flex

 "FlexWiki".Substring(2,4)

exWi

 "FlexWiki".Substring(4)

Wiki

Empty

 empty.Length

0

How to concatenate / append strings

Concatenate strings by creating an array of strings and converting the array to a string.

 ["String 1", "String 2"].ToOneString

String 1String 2

The Newline constant

Newline = ' '

Newline.Length = '2'

Newline.Substring(1,1) = ' '

Newline.Substring(0,1) = ' '

Max Length String

 String.MaxLengthString("ABCDEFGHIJKLMNOPQRSTUVWXYZ", 12)

ABCDEFGHIJKL

 String.MaxLengthString("ABCDEFGHIJKLMNOPQRSTUVWXYZ", 12, "xxx")

ABCDEFGHIxxx