utmeta.wbb - Scan Text For Special Substitutions


CALL "utmeta.wbb",tpl$, text$


This program is CALLed by the uthtmout.wbb and utfrmout.wbb programs and can also be called directly. The purpose of this program is to allow easy file inclusion in text strings and to provide some conditional control over the content of HTML text without resorting to in-line Business BASIC coding.




Data template used when evaluating conditional suppression. See the Data Templates section for additional information.


Text string that contains the meta commands and also returns the result after substitutions are performed.

{include filename} - loads the text file filename into text$. This method creates HTML template files and incorporates them in an application. filename must be accessible to Business BASIC.

{if datafield opr value} ... {end} - evaluates the expression datafield opr value, and if it fails, suppresses any text between the if and end tags. If the expression is valid, the tags are removed, but the text between them is retained. datafield can be either a field in the data template or a global string variable name. The operator opr can be >, <, =, >=, <=, <>, in, or !in. The "in" and "!in" operators perform position checks on text fields and values. If datafield is numeric in the template, value must be a simple number. If datafield is defined with a user attribute of "date=format", value should be a text date, such as "11/30/95". {if}{end} tags may be nested. An example follows:

{if ytd_sales > 0} <td>Sales: [ytd_sales]</td> {end}

If datafield is not found in the data template and is not a global string variable, the meta instruction is retained in the text.

Note that datafield should not be enclosed in brackets, and there must be at least one space between datafield and opr, and opr and value.