Substring - Revision history

Mikhail.zheleznov: edit

2012-01-11T07:08:22Z

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	<noinclude>		<noinclude>
	[[Category:~~Operators~~]]		[[Category:Operations]]
	[[Category:String ~~Operators~~]]		[[Category:String Operations]]
	</noinclude>		</noinclude>

Mikhail.zheleznov: edit

2012-01-10T17:04:43Z

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	choose these words		choose these words

	==Modify==		====Modify====

	{{:Modify}}		{{:Modify}}

	==Insert==		====Insert====

	{{:Insert}}		{{:Insert}}

	==Prepend==		====Prepend====

	{{:Prepend}}		{{:Prepend}}

	==Append==		====Append====

	{{:Append}}		{{:Append}}

	==Delete==		====Delete====

	{{:Delete}}		{{:Delete}}

Mikhail.zheleznov: edit

2012-01-09T12:45:45Z

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← Older revision		Revision as of 12:45, 9 January 2012
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	denotes "the substring of string parent$ starting at character ''start '' and ending at character ''end''"		denotes "the substring of string parent$ starting at character ''start '' and ending at character ''end''"

	~~==Example==~~

	Below is an example of how subscripts can be used to extract substrings from strings:		Below is an example of how subscripts can be used to extract substrings from strings:

Mikhail.zheleznov: edit

2012-01-09T12:13:53Z

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← Older revision		Revision as of 12:13, 9 January 2012
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	{{:Delete}}		{{:Delete}}

			<noinclude>
			[[Category:Operators]]
			[[Category:String Operators]]
			</noinclude>

Mikhail.zheleznov: edit

2012-01-09T12:09:55Z

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New page

In BR, a substring of a string is a subset of the symbols in a string, where the order of the elements is preserved.

Therefore, "ball" is a substring of "snowball", but "bow" is '''not'''. Even though all the letters in "bow" are also contained in "snowball", they are not in the same order.

In order to extract a substring from its parent string, we must use a '''start''' and '''stop''' subscripts. The syntax

parent$(start:stop)

denotes "the substring of string parent$ starting at character ''start '' and ending at character ''end''"

==Example==

Below is an example of how subscripts can be used to extract substrings from strings:

00010 dim a$*255, b$*255
00020 let a$ = "from this long string, choose these words"
00030 let b$ = a$(24:41)
00040 print b$

The output of the above example will be:

choose these words

==Modify==

{{:Modify}}

==Insert==

{{:Insert}}

==Prepend==

{{:Prepend}}

==Append==

{{:Append}}

==Delete==

{{:Delete}}