Difference between revisions of "ECHO"
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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: | ||
| − | {| class="wikitable" width=100% | + | {| class="wikitable" width="100%" |
| − | !width=25%|Escape||Description | + | !width="25%"|Escape||Description |
|- | |- | ||
|\t||Tab | |\t||Tab | ||
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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. | ||
| − | {| class="wikitable" width=100% | + | {| class="wikitable" width="100%" |
| − | !width=25%|Clause||Description | + | !width="25%"|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. |
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Latest revision as of 08:56, 5 February 2013
Contents
Purpose
Evaluate expression and output result
Syntax
ECHO <exp> [, <exp>]
[AT <expN>]
[FUNCTION <expC1>]
[PICTURE <expC2>]
See Also
?, ??, SET SPACE, TRANSFORM()
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"
