Difference between revisions of "ECHO"

From Recital Documentation Wiki
Jump to: navigation, search
(Class)
Line 1: Line 1:
 
 
 
==Purpose==
 
==Purpose==
 
Evaluate expression and output result
 
Evaluate expression and output result
Line 80: Line 78:
  
 
==Products==
 
==Products==
Recital Database Server, Recital Mirage Server, Recital Terminal Developer
+
Recital Server, Recital  
 
[[Category:Documentation]]
 
[[Category:Documentation]]
 
[[Category:Commands]]
 
[[Category:Commands]]
 
[[Category:Input Output]]
 
[[Category:Input Output]]
 
[[Category:Input Output Commands]]
 
[[Category:Input Output Commands]]

Revision as of 17:11, 10 November 2009

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 Server, Recital