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https://github.com/QB64-Phoenix-Edition/QB64pe.git
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6e01fc8dce
Added new _STRCMP and _STRICMP commands for quick string comparisons. Cleaned up QB64 to finish removing the QUI (quick user insert) code and folders. Altered UCASE and LCASE routines to be faster in some situations for us.
45 lines
2 KiB
Plaintext
45 lines
2 KiB
Plaintext
The {{KW|TAB}} function is used in [[PRINT]] and [[LPRINT]] statements to move to a specified column position.
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{{PageSyntax}}
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:{{KW|TAB}}({{Parameter|column%}})
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{{PageDescription}}
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* Space characters are printed until the print cursor reaches the designated {{Parameter|column%}}, overwriting existing characters.
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* If a subsequent TAB ''column%'' is less than the current position, TAB moves the next print to that column on the next row.
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* [[ASCII]] [[CHR$]](9) can be substituted for sequencial 9 space column moves.
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* [[Comma]] PRINT spacing is up to 15 column places (IE: TAB(15)) to a maximum column of 57.
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* When printing to a file, a carriage return([[CHR$]](13)) and linefeed([[CHR$]](10)) character are output when it moves to the next row.
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* '''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]].
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: In QB64, TAB [[concatenation]] is allowed instead of [[semicolon]]s. Example: {{text|PRINT "text" + TAB(9) + "here"|green}}
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''Example:'' Comparing TAB to [[comma]] print spacing which moves the next text print 15 columns.
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{{CodeStart}} '' ''
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{{Cl|PRINT}} {{Cl|TAB}}(15); "T" 'TAB spacing
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{{Cl|PRINT}} , "T" '' '' 'comma spacing
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{{Cl|PRINT}} {{Cl|TAB}}(15); "T"{{text|;|red}} {{Cl|TAB}}(20); "A"; {{Cl|TAB}}(15); "B" 'semicolons add nothing to position
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{{Cl|PRINT}} {{Cl|TAB}}(15); "T"{{text|,|red}} {{Cl|TAB}}(20); "A"; {{Cl|TAB}}(15); "B" 'comma moves column position beyond 20 '' ''
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{{CodeEnd}}
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{{OutputStart}} T
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T
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T A
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B
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T
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A
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B{{OutputEnd}}
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: ''Explanation:'' TAB moves the PRINT down to the next row when the current column position is more than the TAB position.
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{{PageSeeAlso}}
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* [[PRINT]], [[LPRINT]]
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* [[SPC]], [[SPACE$]]
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* [[STRING$]]
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* [[CHR$]], [[ASCII]]
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{{PageNavigation}} |