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(Created page with "The {{KW|TAB}} function is used in PRINT and LPRINT statements to move to a specified column position. {{PageSyntax}} :{{KW|TAB}}({{Parameter|column%}}) {{PageDescription}} * Space characters are printed until the print cursor reaches the designated {{Parameter|column%}}, overwriting existing characters. * If a subsequent TAB ''column%'' is less than the current position, TAB moves the next print to that column on the next row. * ASCII CHR$(9) can be...") |
TheSnowDog (talk | contribs) m (QBasic capitalisation) Tag: visualeditor |
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* [[Comma]] PRINT spacing is up to 15 column places (IE: TAB(15)) to a maximum column of 57. | * [[Comma]] PRINT spacing is up to 15 column places (IE: TAB(15)) to a maximum column of 57. | ||
* When printing to a file, a carriage return([[CHR$]](13)) and linefeed([[CHR$]](10)) character are output when it moves to the next row. | * When printing to a file, a carriage return([[CHR$]](13)) and linefeed([[CHR$]](10)) character are output when it moves to the next row. | ||
* '''Note:''' | * '''Note:''' QBasic did not allow a TAB to be [[concatenation|added]] to a string value. In [[PRINT]] statements the [[+|plus]] would be changed to a [[semicolon]]. | ||
: In QB64, TAB [[concatenation]] is allowed instead of [[semicolon]]s. Example: {{text|PRINT "text" + TAB(9) + "here"|green}} | : In QB64, TAB [[concatenation]] is allowed instead of [[semicolon]]s. Example: {{text|PRINT "text" + TAB(9) + "here"|green}} | ||
Revision as of 10:07, 29 April 2022
The Template:KW function is used in PRINT and LPRINT statements to move to a specified column position.
Syntax
- Template:KW(column%)
Description
- Space characters are printed until the print cursor reaches the designated column%, overwriting existing characters.
- If a subsequent TAB column% is less than the current position, TAB moves the next print to that column on the next row.
- ASCII CHR$(9) can be substituted for sequencial 9 space column moves.
- Comma PRINT spacing is up to 15 column places (IE: TAB(15)) to a maximum column of 57.
- When printing to a file, a carriage return(CHR$(13)) and linefeed(CHR$(10)) character are output when it moves to the next row.
- Note: QBasic did not allow a TAB to be added to a string value. In PRINT statements the plus would be changed to a semicolon.
- In QB64, TAB concatenation is allowed instead of semicolons. Example: PRINT "text" + TAB(9) + "here"
Example: Comparing TAB to comma print spacing which moves the next text print 15 columns.
PRINT TAB(15); "T" 'TAB spacing PRINT , "T" 'comma spacing PRINT TAB(15); "T"; TAB(20); "A"; TAB(15); "B" 'semicolons add nothing to position PRINT TAB(15); "T", TAB(20); "A"; TAB(15); "B" 'comma moves column position beyond 20 |
T T T A B T A B |
- Explanation: TAB moves the PRINT down to the next row when the current column position is more than the TAB position.
See also