$ListFind: Difference between revisions

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<span class="pageSubtitle">Find string in $list</span>
<span class="pageSubtitle">Find string in $list</span>


<p class="warning">Most Sirius $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $ListFind function are the [[Find and FindUp (Stringlist functions)]].</p>
<p class="warn"><b>Note: </b>Many $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $ListFind function are the [[Find and FindUp (Stringlist functions)|Find and FindUp]] functions.</p>




This function locates a $list item that exactly matches a specified string.  
This function locates a $list item that exactly matches a specified string.  


The <var>$ListFind</var> function accepts three arguments and returns the item number of the $list item that matches the string or an error code. It is a callable $function (see [[Calling Sirius Mods $functions]]).  
The <var>$ListFind</var> function accepts three arguments and returns the item number of the $list item that matches the string or an error code. It is a [[Calling Sirius Mods $functions|callable]] $function.  


The first argument is the identifier of the $list in which a string is to be located. This is a required argument.  
The first argument is the identifier of the $list in which a string is to be located. This is a required argument.  
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==Syntax==
==Syntax==
<p class="syntax"><section begin="syntax" />[%RESULT =] $ListFind(list_identifier, search_string,  start_item)
<p class="syntax">[%RESULT =] $ListFind(list_identifier, search_string,  start_item)
<section end="syntax" /></p>
<p>
</p>
</p>
<p>%result is set either to the item number of the first item in the $list that matches the search criteria, or to a negative number if an error has occurred.</p>
 
<p class="code">  
<p><var class="term">%result</var> is set either to the item number of the first item in the $list that matches the search criteria, or to a negative number if an error has occurred.</p>
-5 - Required argument not specified
 
-6 - $List identifier invalid
===Error codes===
-7 - Item number not found in $list
<p class="code">-5 - Required argument not specified
-8 - String not found (if $list empty, -7)
-6 - $List identifier invalid
</p>
-7 - Item number not found in $list
<p class="caption">$ListFind Error Codes
-8 - String not found (if $list empty, -7)
</p>
</p>


The difference between <var>$ListFind</var> and [[$ListLoc]] is that with $ListFind, a $list item must match the search string exactly rather than simply containing the search string. Moreover, <var>$ListFind</var> does not allow specification of a range of columns (or positions) that are to be searched.<p>
==Usage notes==
<ul>
<li>The difference between <var>$ListFind</var> and [[$ListLoc]] is that with $ListFind, a $list item must match the search string exactly rather than simply containing the search string. Moreover, <var>$ListFind</var> does not allow specification of a range of columns (or positions) that are to be searched.
</ul>


<h2>Products authorizing {{PAGENAMEE}}</h2><ul class="smallAndTightList">
==Products authorizing {{PAGENAMEE}}==
<li>[[Sirius functions]]</li>
<ul class="smallAndTightList">
<li>[[List of $functions|Sirius functions]]</li>
<li>[[Fast/Unload User Language Interface]]</li>
<li>[[Fast/Unload User Language Interface]]</li>
<li>[[Janus Open Client]]</li>
<li>[[Media:JoclrNew.pdf|Janus Open Client]]</li>
<li>[[Janus Open Server]]</li>
<li>[[Media:JosrvrNew.pdf|Janus Open Server]]</li>
<li>[[Janus Sockets]]</li>
<li>[[Janus Sockets]]</li>
<li>[[Janus Web Server]]</li>
<li>[[Janus Web Server]]</li>
<li>[[Japanese functions]]</li>
<li>Japanese functions</li>
<li>[[Sir2000 Field Migration Facility]]</li>
<li>[[Media:SirfieldNew.pdf|Sir2000 Field Migration Facility]]</li>
</ul>
</ul>
</p>
<p>
</p>


[[Category:$Functions|$ListFind]]
[[Category:$Functions|$ListFind]]

Latest revision as of 22:51, 20 September 2018

Find string in $list

Note: Many $functions have been deprecated in favor of Object Oriented methods. The OO equivalent for the $ListFind function are the Find and FindUp functions.


This function locates a $list item that exactly matches a specified string.

The $ListFind function accepts three arguments and returns the item number of the $list item that matches the string or an error code. It is a callable $function.

The first argument is the identifier of the $list in which a string is to be located. This is a required argument.

The second argument is the string to be matched. This is a required argument.

The third argument is a number that indicates the item number at which the search is to begin. If this argument is not specified searching begins at the first item in the $list.

Syntax

[%RESULT =] $ListFind(list_identifier, search_string, start_item)

%result is set either to the item number of the first item in the $list that matches the search criteria, or to a negative number if an error has occurred.

Error codes

-5 - Required argument not specified -6 - $List identifier invalid -7 - Item number not found in $list -8 - String not found (if $list empty, -7)

Usage notes

  • The difference between $ListFind and $ListLoc is that with $ListFind, a $list item must match the search string exactly rather than simply containing the search string. Moreover, $ListFind does not allow specification of a range of columns (or positions) that are to be searched.

Products authorizing $ListFind