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One level only tags to control the .xpr processing: <IF> <ELSE> <END>
Syntax:
<IF condition> .........xpr tags ......
... ...
[ <ELSE>........ .xpr tags ...... ]
... ...
<END>
Different operands can be used in the condition of the <IF> statement:
NEWPAGE (reserved) |
set if a frame overflow has occurred (<CHAIN...PAGE...>) |
PAGE (reserved) |
the current page number |
".....string value....." ...string_value... "12345.20" |
a string value a string value that does not contain spaces a numeric value |
12345 |
a numeric value |
...logical_value... |
something that results to true or false like: "true", "false", "yes", "no"... |
[=@....] |
Operators:
= |
equal to |
!= <) |
different |
< |
less than |
) |
greater than |
)= |
greater or equal to |
<= |
less or equal to |
Note: > is replaced by a ) to avoid confusion with the end of the tag.
Examples:
<IF NEWPAGE>... if a new page has been generated by vpxPrint... <END>
<IF PAGE = 3>...... <END>
<IF PAGE )= 2> .. if current page is >= to 2 ... <END>
<IF [=@AMOUNT] ) 1000> <FGCOLOR=RED> <ELSE> <FGCOLOR=YELLOW> <END>