Difference between revisions of "??"
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The ? command outputs a carriage return, then a line feed, then evaluates each expression in turn and displays the result. The ?? command evaluates the expression and displays the results on the same line, no carriage return/line feed sequence is output. If more than one expression is specified and SET SPACE is ON, a single space is output between each expression. If SET SPACE is OFF, the expressions are output with no space in between. | The ? command outputs a carriage return, then a line feed, then evaluates each expression in turn and displays the result. The ?? command evaluates the expression and displays the results on the same line, no carriage return/line feed sequence is output. If more than one expression is specified and SET SPACE is ON, a single space is output between each expression. If SET SPACE is OFF, the expressions are output with no space in between. | ||
| − | {| class="wikitable" width=100% | + | {| class="wikitable" width="100%" |
| − | !width=30%|Clause||Description | + | !width="30%"|Clause||Description |
|- | |- | ||
| − | |valign=top|AT <expN>||You may optionally specify the column at which the expression will be output with the AT <expN> clause. | + | |valign="top"|AT <expN>||You may optionally specify the column at which the expression will be output with the AT <expN> clause. |
|- | |- | ||
| − | |valign=top|PICTURE <expC1>||The PICTURE clause supports all picture template symbols listed in the @...SAY command. | + | |valign="top"|PICTURE <expC1>||The PICTURE clause supports all picture template symbols listed in the @...SAY command. |
|- | |- | ||
| − | |valign=top|FUNCTION <expC2>||The FUNCTION qualifier allows picture functions to be specified. Normally this can be done with the PICTURE qualifier by preceding the picture with '@'. If the FUNCTION qualifier is used the '@' is not needed. | + | |valign="top"|FUNCTION <expC2>||The FUNCTION qualifier allows picture functions to be specified. Normally this can be done with the PICTURE qualifier by preceding the picture with '@'. If the FUNCTION qualifier is used the '@' is not needed. |
|- | |- | ||
| − | |valign=top|STYLE <expC3>||The STYLE qualifier has been added for compatibility with other Xbase languages. | + | |valign="top"|STYLE <expC3>||The STYLE qualifier has been added for compatibility with other Xbase languages. |
|- | |- | ||
|} | |} | ||
Latest revision as of 09:51, 5 February 2013
Contents
Purpose
Evaluate expression and output result
Syntax
? <exp> [,<exp>] | ?? <exp> [,<exp>]
[AT <expN>]
[FUNCTION <expC1>]
[PICTURE <expC2>]
[STYLE <expC3>]
See Also
?, ECHO, SET SPACE, TRANSFORM()
Description
The ? command outputs a carriage return, then a line feed, then evaluates each expression in turn and displays the result. The ?? command evaluates the expression and displays the results on the same line, no carriage return/line feed sequence is output. If more than one expression is specified and SET SPACE is ON, a single space is output between each expression. If SET SPACE is OFF, the expressions are output with no space in between.
| Clause | Description |
|---|---|
| AT <expN> | You may optionally specify the column at which the expression will be output with the AT <expN> clause. |
| PICTURE <expC1> | The PICTURE clause supports all picture template symbols listed in the @...SAY command. |
| FUNCTION <expC2> | The FUNCTION qualifier allows picture functions to be specified. Normally this can be done with the PICTURE qualifier by preceding the picture with '@'. If the FUNCTION qualifier is used the '@' is not needed. |
| STYLE <expC3> | The STYLE qualifier has been added for compatibility with other Xbase languages. |
Example
?? "price" at 01 picture "@!",1234.56 picture "$99,999.99" PRICE $1,234.56
