 | This template is used on approximately ೨,೯೨,೦೦೦ pages, or roughly 197% of all pages.
To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them. |
 | This template uses Lua:
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{{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).
- If sub_string is empty, this routine returns 1. This case will often have to be handled specially.
In the examples, the string to be searched is Abcdefghijklm:
- A; 1
- a; -1
- def; 4
- klm; 11
- zyx; -1
Examples with empty parameters:
- empty;klm; -1
- empty;empty; 1
Template parameters
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| Text | 1 | The text to search within
| String | required |
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| Sub_string | 2 | The string to be searched within the text
| String | required |
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String-handling templates (help page) |
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Substring (select chunk of string by its position) |
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{{Str sub new}} | Select a substring based on starting and ending index counted in either direction. | {{Str left}} | Keep the first N characters of a string, or duplicate it to N characters. | {{Str crop}} | Return all but the last N characters of a string. | {{Str index}} | Return the N-th character of a string. |
| {{Str right}} | Return substring starting at N-th character to end of string. | {{Str rightc}} | Return the last N characters of a string; or a given value if empty. | {{Str sub old}} | Return substring of given length starting at N-th character. |
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Trimming (select/remove chunk of string by character type) |
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Select/remove specific item from string |
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{{Delink}}, {{Trim brackets}} | Removes wikilink brackets (wikicode); all or outer only. | {{Plain text}} | Removes wikicode (formatting and brackets) | {{PAGENAMEBASE}} | Trim off any parenthesis text at the end of a string (disambiguation). | {{Title disambig text}} | Returns text in parentheses at the end of a string (disambiguation). |
| {{Title year}} | Returns the 3-or-4-digit year from a pagename, if any. | {{Title decade}} | Returns the 4-digit decade from a pagename (e.g. "1740" from "Foo 1740s bar"), if any. | {{Title number}} | Returns any number from a pagename. | {{WikiProjectbasename}} | Removes "WikiProject" from a pagename. |
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Insertion, replacement and length |
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{{Loop}} | Repeat character string a specified number of times. | {{Replace}} | Returns the string, after replacing all occurrences of a specified string with another string. | {{Str rep}} | Returns the string, after replacing the first occurrence of a specified string with another string. | {{Digits}} | Returns the string, after removing all characters that are not digits 0–9 | {{Nowiki}} | Displays wikitext as plain text. |
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{{Str len}} | Returns a string's length. | {{Str ≥ len}} | Check if a string is "longer or equally long" or "shorter" than a given length. | {{Str ≤ len}} | Check if a string is "shorter or equally long" or "longer" than a given length. | {{Str ≠ len}} | Check if a string is "not equal" or "equal" to a given length. |
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Analysis and searching |
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{{Array}} | Array item manipulation and retrieval. | {{A or an}} | Takes a noun and produces the appropriate indefinite article, based on whether the first letter is a vowel. | {{In string}} | Returns optional string when given string is not found | {{Isnumeric}} | Returns number when true, blank when not numeric. | {{Str letter}} | Returns the number of letters that begin a string. | {{Str number}} | Returns the number of numbers that begin a string. |
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Modules and built-in functions |
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