LTrm$ - Revision history

Laura at 20:33, 12 May 2016

2016-05-12T20:33:06Z

← Older revision		Revision as of 20:33, 12 May 2016
Line 1:		Line 1:
	LTRM$(<string>)		LTRM$(<string>,"<chr>")

	The [[LTrm$]] [[internal function]] deletes leading blanks from the variable. So named, because it ''left-trims'' the blanks from the string.		The [[LTrm$]] [[internal function]] deletes leading blanks from the variable. So named, because it ''left-trims'' the blanks from the string.

Laura at 17:31, 22 May 2014

2014-05-22T17:31:33Z

← Older revision		Revision as of 17:31, 22 May 2014
Line 1:		Line 1:
	LTRM$(<string>$)		LTRM$(<string>)

	The [[LTrm$]] [[internal function]] deletes leading blanks from the variable. So named, because it ''left-trims'' the blanks from the string.		The [[LTrm$]] [[internal function]] deletes leading blanks from the variable. So named, because it ''left-trims'' the blanks from the string.

Laura at 00:13, 22 May 2014

2014-05-22T00:13:48Z

← Older revision		Revision as of 00:13, 22 May 2014
Line 1:		Line 1:
	The [[LTrm$]] [[internal function]] deletes leading blanks from variable A$. So named, because it ''left-trims'' the blanks from the string ~~in A$~~.		LTRM$(<string>$)

			The [[LTrm$]] [[internal function]] deletes leading blanks from the variable. So named, because it ''left-trims'' the blanks from the string.

	====Comments and Examples====		====Comments and Examples====

John: moved LTRM$ to LTrm$ over redirect

2014-02-27T13:12:13Z

moved LTRM$ to LTrm$ over redirect

← Older revision	Revision as of 13:12, 27 February 2014
(No difference)

Mikhail.zheleznov: *

2012-01-26T20:21:36Z

← Older revision		Revision as of 20:21, 26 January 2012
Line 1:		Line 1:
	The [[LTrm$]] [[internal function]] deletes leading blanks from variable A$. So named, because it ~~Left TRiMs~~ the blanks from the string in A$.		The [[LTrm$]] [[internal function]] deletes leading blanks from variable A$. So named, because it ''left-trims'' the blanks from the string in A$.

	====Comments and Examples====		====Comments and Examples====

	When an operator enters a character string which will be used as a key field (such as last name), any spaces on the front part of the name will probably cause the string entered to not match anything in the key file. To minimize these errors, the program can remove any leading spaces with the LTRM$ function. However, when LTRM$ successfully removes one or two spaces from the beginning of the string, this causes another problem because now the string is one or two characters shorter; this second problem can be solved by adding spaces on the right with the RPAD$ function. Combining these two functions as in line 430 below is a common data clean-up technique.		When an operator enters a character string which will be used as a key field (such as last name), any spaces on the front part of the name will probably cause the string entered to not match anything in the key file. To minimize these errors, the program can remove any leading spaces with the LTRM$ function. However, when LTRM$ successfully removes one or two spaces from the beginning of the string, this causes another problem because now the string is one or two characters shorter; this second problem can be solved by adding spaces on the right with the RPAD$ function. Combining these two functions as in line 430 below is a common data clean-up technique.

Line 12:		Line 13:

	====Related Functions====		====Related Functions====
	See [[RTRM$]] to trim blanks from the right and [[LPAD$]]. and [[RPAD$]] to add blanks.
			See [[RTRM$]] to trim blanks from the right and [[LPAD$]] and [[RPAD$]] to add blanks.

	<noinclude>		<noinclude>
	[[Category:Internal Functions]]		[[Category:Internal Functions]]
	</noinclude>		</noinclude>

Mikhail.zheleznov: moved LTrm$ to LTRM$

2012-01-17T10:16:35Z

moved LTrm$ to LTRM$

← Older revision	Revision as of 10:16, 17 January 2012
(No difference)

Mikhail.zheleznov: 1 revision

2012-01-15T14:11:47Z

1 revision

New page

The [[LTrm$]] [[internal function]] deletes leading blanks from variable A$. So named, because it Left TRiMs the blanks from the string in A$.

====Comments and Examples====
When an operator enters a character string which will be used as a key field (such as last name), any spaces on the front part of the name will probably cause the string entered to not match anything in the key file. To minimize these errors, the program can remove any leading spaces with the LTRM$ function. However, when LTRM$ successfully removes one or two spaces from the beginning of the string, this causes another problem because now the string is one or two characters shorter; this second problem can be solved by adding spaces on the right with the RPAD$ function. Combining these two functions as in line 430 below is a common data clean-up technique.

An optional second parameter ("char") has been added to LTRM$ and RTRM$ to specify the character to strip (instead of blanks, which are still the default). The "char" parameter is limited to one character in length (error 0410 will result if it is longer). Nulls and CHR$(0) are allowed. The following statement would return the value 12:

00410 PRINT FIELDS "10,30,C 20: "Enter LAST NAME"
00420 INPUT FIELDS "12,30,C 10,R": LNAME$
00430 LET LNAME$ = RPAD$(LTRM$(LNAME$),10)
00440 READ #2,USING 450,KEY=LNAME$: ADDRESS$,CITY$,ST$

====Related Functions====
See [[RTRM$]] to trim blanks from the right and [[LPAD$]]. and [[RPAD$]] to add blanks.

<noinclude>
[[Category:Internal Functions]]
</noinclude>