Difference between revisions of "ECHO"
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==Purpose== | ==Purpose== | ||
Evaluate expression and output result | Evaluate expression and output result | ||
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==Syntax== | ==Syntax== | ||
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[PICTURE <expC2>] | [PICTURE <expC2>] | ||
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==See Also== | ==See Also== | ||
− | [[?]], [[?? | + | [[?]], [[??]], [[SET SPACE]], [[TRANSFORM()]], [[WAIT]] |
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The following escapes can be included in <exp> if it is a character expression: | The following escapes can be included in <exp> if it is a character expression: | ||
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{| class="wikitable" | {| class="wikitable" | ||
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The ECHO command also supports php-style $variable and {expression} substitutions in character strings. | The ECHO command also supports php-style $variable and {expression} substitutions in character strings. | ||
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{| class="wikitable" | {| class="wikitable" | ||
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|- | |- | ||
|} | |} | ||
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==Example== | ==Example== | ||
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</code> | </code> | ||
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[[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 09:23, 16 November 2011
Contents
Purpose
Evaluate expression and output result
Syntax
ECHO <exp> [, <exp>]
[AT <expN>]
[FUNCTION <expC1>]
[PICTURE <expC2>]
See Also
?, ??, 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 |
The ECHO command also supports php-style $variable and {expression} substitutions in character strings.
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. |
Example
echo "price" at 10 picture "@!",1234.56 picture "$9,999.99" echo "-----\n" at 10 PRICE $1,234.56 ----- // php-style $variable and {expression} substitution m_date = date() echo "Today's date is {m_date}\n"