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The TAB function moves the print position to a specified column.
TAB(column)
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Column is the column position to print. TAB positions the cursor at the column specified. TAB always moves forward (to the right). If the cursor is at or past the column specified, Sheerpower jumps to the next line. The TAB function is a print item. Therefore, it must be separated from other print items with a comma or a semicolon.
| Example 7-6 TAB in PRINT Statement |
|---|
input name_1$, name_2$
print tab(5); name_1$; tab(20); 'MARY'; tab(35); name_2$
end
? FRED, JOHN
FRED MARY JOHN
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The AT option moves the cursor to a specified row and column on the screen.
AT row, column
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Row is the row to print at. Column is the column to print at. Row and column can be any integer numeric constants.
| Example 7-7 AT row, column in PRINT Statement |
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input name_1$, name_2$
clear
print at 3,10: name_1$; tab(20); 'Mary'; tab(35); name_2$
end
? Fred, John <------- type in 'Fred, John'
FRED MARY JOHN
|
The ERASE option erases from the end of the printed text to the end of the line.
| Example 7-8 ERASE in PRINT Statement |
|---|
print at 10, 1: 'Mary had a little lamb'
delay 2
print at 10, 1: 'Jeff'
delay 2
print erase, at 10, 1: 'Caroline'
delay 2
end
Mary had a little lamb
.
.
.
Jeff had a little lamb
.
.
.
Caroline
|
The following rules govern the printing of numbers:
| Example 7-9 Printing Numbers with PRINT Statement |
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let x = 7
let y = 10
print x; y
end
7 10
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| Example 7-10 Printing Negative Numbers |
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let x = -7
let y = -10
print x; y
end
-7 -10
|
| Example 7-11 Printing Integers of 12 or Fewer Digits |
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let x = 700000000001
print x
end
700000000001
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Sheerpower prints:
If a separator (comma, semicolon, TAB function or AT option) is the last item in the PRINT statement, Sheerpower advances the cursor to the position specified and does not generate a new line.
| Example 7-12 Cursor Positioning in PRINT Statement |
|---|
print tab(5); 7,
print 10;
print 20
end
7 10 20
|
The video attribute options highlight text on the screen. Separate the options from the print list with a colon. The options are:
| BLINK | causes the expressions in the print list to blink in low and high intensity |
| BOLD | causes the expressions in the print list to appear in bold (high intensity) |
| REVERSE | causes the print list to appear in reverse video |
The video options can be combined. For example, the following program will print "Hello" boldfaced and in reverse video. It will then blink the word "Goodbye".
| Example 7-13 Printing Attributes--Highlighting Options |
|---|
print bold, reverse: 'Hello' print blink: 'Goodbye' end |
The USING option is used to format text. The print mask indicates the format for the data in the print list.
USING print_mask
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The print_mask consists of fields or directives and text. The text can precede or follow a field or directive. The print mask tells how to print the expressions in the print list.
| Example 7-14 USING Option in PRINT Statement - print_mask |
|---|
let a$ = "#.## ##.##" //<---- two fields
print using "amount = #.##": 1.9
print using a$: 1.93, -1.93
end
amount = 1.90
1.93 -1.93
|
Expressions in the print list with the USING option are separated by commas. A trailing semicolon is allowed. The expressions are printed according to the format. However, a trailing semicolon causes Sheerpower to leave the cursor at the end of the print line.
| Example 7-15 PRINT USING |
|---|
print using "###.## ###.##": 22.88, 45;
print " and others."
end
22.88 45.00 and others.
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Fields are made up of format characters. The format characters tell Sheerpower how to print the expressions in the print list.
The # is used to indicate a character position---a place in the format where a character can occur. For example:
| Example 7-16 String Format Characters in PRINT USING |
|---|
print using '#### ##': 'Test', 'Hi'
end
Test Hi
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In the above example, there are two fields. When the first string is printed, the word "Test" occupies all four character positions. When the second expression is printed (Hi), only two character positions are used.
If the string expression being printed is smaller than the field, the expression will be printed centered within the field.
| Example 7-17 String Format Characters in PRINT USING |
|---|
print using '#### ####': 'Test', 'Hi'
print '123456789'
end
Test Hi
123456789
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If the string expression is longer than the field, Sheerpower generates an exception.
The # can also be used to specify digits. Each # represents one numeric digit position.
| Example 7-18 Numeric Format Characters in PRINT USING |
|---|
print using "##": 19
end
19
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If more positions than the numeric expression contains are indicated, the expression will be right-justified and padded with spaces.
| Example 7-19 Numeric Format Characters in PRINT USING |
|---|
print '1st 2nd 3rd'
print using "### ### ###": 193, 19, 1
end
1st 2nd 3rd
193 19 1
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Sheerpower prints a minus sign in front of negative numbers. Sheerpower does not print a sign in front of positive numbers.
| Example 7-20 Numeric Format Characters in PRINT USING - Negative and Positive Numbers |
|---|
print '1st 2nd 3rd'
print using "### ### ###": 193, 19, -1
end
1st 2nd 3rd
193 19 -1
|
If more positions to the left of the decimal point than the expression contains are indicated, the expression will be printed with leading spaces.
| Example 7-21 Numeric Format Characters in PRINT USING |
|---|
print using "###.##": 1.9
end
1.90
|
If more positions to the right of the decimal point than the expression contains are indicated, the expression will be printed with trailing zeros.
| Example 7-22 Numeric Format Characters in PRINT USING |
|---|
print '--1-- --2--'
print using "##.## ##.##": 1.3, 1.25
end
--1-- --2--
1.30 1.25
|
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