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INDEXOF

Finds the index of a string within a string.

Syntax

<INDEXOF STR="STRING_VALUE"
    WHAT="SEARCH_STRING"
    OUTSTR="VAR_NAME"
    INDEX="OFFSET"/>

Parameters

STR (required)

String to search.

WHAT (required)

Value of the string to search for within STRING_VALUE.

OUTSTR (required)

Name of the variable to store the offset into STRING_VALUE of the SEARCH_STRING.

INDEX (required)

Offset in the source string to begin the search. The default for this parameter is 0.

Description

The INDEXOF tag finds the index of a specified string within another string. For more information about variables, see the Sites Developer's Guide.

Error Numbers

The possible values of errno include:

Value	Description
1	Substring was found.
0	Substring was not found.

Example

This example looks for the index of test within the string, "This is a test".

<INDEXOF STR="This is a test" WHAT="test" OUTSTR="index"                  
	 INDEX="0"/>
    <IF COND="Variables.errno=1">
 <THEN>
   <CSVAR NAME="Variables.index"/>
    </THEN>
    </IF>

The browser displays:

10

The following example sets the outstr variable to -1 if the string isn't found:

<SETVAR NAME="errno" VALUE="0"/>
<INDEXOF STR="a lost dog found the way home to Boston from Alaska" 
         WHAT="Florida" 
         OUTSTR="myindex1"
         INDEX="0"/>
<SETVAR NAME="myindex1" 
        VALUE="errno:Variables.errno, outstr:Variables.myindex1"/>

The value of myindex1 is:

"errno:0, outstr: -1"

See Also

BEGINS , ENDS

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