Add (Stringlist function): Difference between revisions
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{{Template:Stringlist:Add subtitle}} | |||
This [[Notation conventions for methods#Callable functions|callable]] method adds arbitrary string data to a <var>Stringlist</var>. The <var>Add</var> method accepts one or more arguments and returns a numeric result. | |||
This callable method adds arbitrary string data to a Stringlist. The Add method accepts one | |||
==Syntax== | ==Syntax== | ||
{{Template:Stringlist:Add syntax}} | {{Template:Stringlist:Add syntax}} | ||
===Syntax terms=== | ===Syntax terms=== | ||
<table class="syntaxTable"> | <table class="syntaxTable"> | ||
<tr><th>% | <tr><th>%number</th> | ||
<td>A numeric variable to contain the number of items in the indicated <var>Stringlist</var> after the strings have been added. <var class="term">%number</var> is also the item number associated with the last added string in the <var>Stringlist</var>.</td></tr> | |||
<tr><th>sl</th> | |||
<td>A <var>Stringlist</var> object.</td></tr> | |||
<tr><th>itemList</th> | |||
<td>Under <var class="product">Sirius Mods</var> 7.9 and later, this is a comma-delimited set of strings, each of which, from left to right, is added to the method object <var>Stringlist</var>. The items in the list could themselves be <var>Stringlists</var>, in which case each item in the input <var>Stringlist</var> is added to the target <var>Stringlist</var>. | |||
Under <var class="product">Sirius Mods</var> 7.8 and earlier, <var class="term">itemList</var> could only be a single string that is to be added to the <var>Stringlist</var>.</td></tr> | |||
</table> | </table> | ||
==Usage notes== | ==Usage notes== | ||
<ul><li>All errors result in request cancellation.<li> | <ul><li>All errors result in request cancellation. | ||
<li>The <var>[[Push (Stringlist function)|Push]]</var> and <var>[[Enqueue (Stringlist function)|Enqueue]]</var> stringlist methods are the same as the <var>Add</var> method with the exception that (under <var class="product">Sirius Mods</var> 7.9 and later) <var>Add</var> can add more than one item to the method object <var>Stringlist</var> whereas <var>Push</var> and <var>Enqueue</var> can only add one. <var>[[Push (Stringlist function)|Push]]</var> was designed as a convenience for use with <var>[[Pop (Stringlist function)|Pop]]</var>. <var>[[Enqueue (Stringlist function)|Enqueue]]</var> was designed as a convenience for use with <var>[[Dequeue (Stringlist function)|Dequeue]]</var>. | |||
</ul> | </ul> | ||
==Examples== | ==Examples== | ||
In the following example, four comma-delimited field values are added to a Stringlist for each record in a Recordset:< | |||
%list is object stringList | ====Adding a single item to a Stringlist==== | ||
In the following example, four comma-delimited field values are added to a <var>Stringlist</var> for each record in a <var>Recordset</var>: | |||
<p class="code">%list is object stringList | |||
... | ... | ||
%list = new | %list = new | ||
for each record in %recset | for each record in %recset | ||
%data = ssn with ',' with lname with ',' - | %data = ssn with ',' with lname with ',' - | ||
fname with ',' with mi | fname with ',' with mi | ||
%list:add(%data) | %list:add(%data) | ||
end for | end for | ||
</ | </p> | ||
====Adding multiple items to a Stringlist==== | |||
In the following example, a string literal, the contents of a variable, and the contents of another <var>Stringlist</var> are added to a <var>Stringlist</var>: | |||
<p class="code">begin | |||
%sl is object stringlist | |||
%python is string len 32 | |||
%stooges is object stringlist | |||
%stooges = list('Moe', 'Larry', 'Curly') | |||
%sl = list('John', 'Michael', 'Eric') | |||
%python = 'Graham' | |||
%sl:add('Terry', %python, %stooges) | |||
%sl:print | |||
end | |||
</p> | |||
This outputs: | |||
<p class="output">John | |||
Michael | |||
Eric | |||
Terry | |||
Graham | |||
Moe | |||
Larry | |||
Curly | |||
</p> | |||
==See also== | |||
{{Template:Stringlist:Add footer}} | |||
Latest revision as of 15:01, 10 October 2012
Add strings to Stringlist (Stringlist class)
This callable method adds arbitrary string data to a Stringlist. The Add method accepts one or more arguments and returns a numeric result.
Syntax
[%number =] sl:Add( itemList)
Syntax terms
| %number | A numeric variable to contain the number of items in the indicated Stringlist after the strings have been added. %number is also the item number associated with the last added string in the Stringlist. |
|---|---|
| sl | A Stringlist object. |
| itemList | Under Sirius Mods 7.9 and later, this is a comma-delimited set of strings, each of which, from left to right, is added to the method object Stringlist. The items in the list could themselves be Stringlists, in which case each item in the input Stringlist is added to the target Stringlist. Under Sirius Mods 7.8 and earlier, itemList could only be a single string that is to be added to the Stringlist. |
Usage notes
- All errors result in request cancellation.
- The Push and Enqueue stringlist methods are the same as the Add method with the exception that (under Sirius Mods 7.9 and later) Add can add more than one item to the method object Stringlist whereas Push and Enqueue can only add one. Push was designed as a convenience for use with Pop. Enqueue was designed as a convenience for use with Dequeue.
Examples
Adding a single item to a Stringlist
In the following example, four comma-delimited field values are added to a Stringlist for each record in a Recordset:
%list is object stringList ... %list = new for each record in %recset %data = ssn with ',' with lname with ',' - fname with ',' with mi %list:add(%data) end for
Adding multiple items to a Stringlist
In the following example, a string literal, the contents of a variable, and the contents of another Stringlist are added to a Stringlist:
begin %sl is object stringlist %python is string len 32 %stooges is object stringlist %stooges = list('Moe', 'Larry', 'Curly') %sl = list('John', 'Michael', 'Eric') %python = 'Graham' %sl:add('Terry', %python, %stooges) %sl:print end
This outputs:
John Michael Eric Terry Graham Moe Larry Curly