Difference between revisions of "ECHO"
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Revision as of 10:37, 24 June 2009
Class
Input/Output
Purpose
Evaluate expression and output result
Syntax
ECHO <exp> [,<exp>]
[AT <expN>]
[FUNCTION <expC1>]
[PICTURE <expC2>]
[STYLE <expC3>]
See Also
@...GET, @...SAY, ACCEPT, INPUT, SET SPACE, TRANSFORM(), WAIT
Description
The ECHO command evaluates the expression and displays the results on the same line, no carriage return/line feed sequence is output unless the <exp> is a character expression and contains the 'C' style escapes as shown below. 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 following escapes can be included in <exp> if it is a character expression:
| Escape | Description |
|---|---|
| \t | Tab |
| \n | New line |
| \r | Carriage return |
| 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. |
In Recital Mirage, the following style qualifiers are supported in <expC3>:
| <expC3> | Style |
|---|---|
| B | Bold |
| I | Italic |
| U | Underline |
Example
echo "price" at 10 picture "@!",1234.56 picture "$9,999.99" echo "-----\n" at 10 PRICE $1,234.56 -----
Products
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
