نمایش مبدأ برای الگو:Str find/doc

{{Documentation subpage}}
{{Lua|Module:String}}
{{high use}}
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===Usage===
{{tlc|Str find|''text''|''sub_string''}}

Returns the position of first appearance of ''sub_string'' in ''text''.

* The comparison is case sensitive.
* Returns -1 if ''sub_string'' not found
* Character position is 1 based (not 0 based as usual in calculations).
* {{Color|red|If ''sub_string'' is empty, this routine returns 1.}} This case will often have to be handled specially.

===Examples===
In the examples, the string to be searched is {{code|1=Abcdefghijklm}}:
* A; {{str find|Abcdefghijklm|A}}
* a; {{str find|Abcdefghijklm|a}}
* def; {{str find|Abcdefghijklm|def}}
* klm; {{str find|Abcdefghijklm|klm}}
* zyx; {{str find|Abcdefghijklm|zyx}}
* empty;klm;{{str find||klm}}
* empty;empty; {{str find||}}

===TemplateData===
{{TemplateDataHeader}}
<templatedata>
{
        "description": "A template to find the numeric position of first appearance of ''sub_string'' in ''text''",
        "params": {
                "1": {
                        "label": "Text",
                        "description": "The text to search within",
                        "type": "string",
                        "required": true
                },
                "2": {
                        "label": "Sub_string",
                        "description": "The string to be searched within the text",
                        "type": "string",
                        "required": true
                }
        }
}
</templatedata>

===See also===
{{String-handling templates |anlys/tech}}

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[[Category:String manipulation templates]]

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