Usage
Characters in the source string are counted: the first is index 1length of string
- {{str mid|Abcdefghijklmnopqrstuvwxyz|5|3}} → خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»
If parameter 2 is omitted, start is from character 1:
- {{str mid|Abcdefghijklmnopqrstuvwxyz||5}} → خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»
If parameter 3 is omitted, the whole rest of the string is returned:
- {{str mid|Abcdefghijklmnopqrstuvwxyz|15}} → opqrstuvwxyz
Counting from the end
By entering a negative value, the index is counted from the end:
- {{str mid|Abcdefghijklmnopqrstuvwxyz|-7|4}} → خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»
- {{str mid|Abcdefghijklmnopqrstuvwxyz|-7}} → tuvwxyz
Instead if substring length, use index for last character
By using parameter |4=n, a number, you do not ask for substring length, but the last character (as counted from the start of the input string):
- {{str mid|Abcdefghijklmnopqrstuvwxyz|5||7}} → efg
Spaces are kept
In the returned substring, spaces are kept:
- >{{str mid|I like this.|2|6}}< → >خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»<
But the input string is trimmed:
- >{{str mid| I like this. |2|6}}< → >خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»<
Error messages
When the ranges (either param2 or the substring length) is out impossible in the string, an error is returned:
- {{str mid|Abcdefghijklmnopqrstuvwxyz|30}} → String Module Error: String subset index out of range
- {{str mid|Abcdefghijklmnopqrstuvwxyz|0|45}} → خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»
The error can be suppressed by using |ignore errors=true. A blank (empty string) will be returned:
- {{str mid|Abcdefghijklmnopqrstuvwxyz|0|45|ignore errors=true}} → خطای عبارت: نویسه نقطه‌گذاری شناخته نشده «�»
Error category
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|no category=true switches off category adding.
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|error category=[[Category:Your category name]] sets the category to be added when in case of an error.
- Default is Category:Errors reported by Module String.
See also
String-handling templates |
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| By counting | | {{str mid}} | To return a substring specified by position and length. | | {{trunc}} | To trim down to a specified number of characters. | | {{str left}} | To trim down to a specified number of characters or duplicate the string to a specified number. | | {{str crop}} | To crop a specified number of characters off the end. | | {{chop head and tail}} | To crop a specified number of characters off the beginning and end. |
| | {{str right}} | To trim the first specified number of characters. | | {{str rightc}} | To return a number of characters from the end, returns a parameter if the string is empty. | | {{str rightmost}} | To trim down to the last specified number of characters. | | {{str sub old}} | To trim down to a specified number, starting at a given number from the left. | | {{str sub new}} | Select a substr based on starting and ending index. | | {{str index}} | Returns a given character from a string, but not accented letters. |
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| By checking | | {{trim}} | To trim any leading or trailing whitespace | | {{str letter/trim}} | To trim down to the beginning letters. | | {{str number/trim}} | To trim down to the beginning numbers. | | {{trim brackets}} | To trim any leading or trailing square brackets. | | {{trim quotes}} | To trim leading or trailing matches quotes. |
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| Dedicated | | {{delink}} | Removes wikilink brackets (wikicode). | | {{remove file prefix}} | Removes "File:" (or "Image:") from filenames. | | {{PAGENAMEBASE}} | To 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). |
| | {{WikiProjectbasename}} | Removes "WikiProject" from a pagename. | | {{remove unranked}} | Removes the string "unranked_" from the left of a string (taxonomy). | | {{ship prefix}} | Returns the length of a ship's name prefix, if listed (ship names). | | {{title year}} | Returns the 4-digit year from a pagename, if any. |
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Insertion, replacement and length |
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| {{strloc insert}} | Inserts a string at character location strloc, or appends if strloc<=0. | | {{loop}} | Repeat character string a specified number of times. | | {{repeat}} | Repeat a 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 |
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| {{str len}} | Returns a string's length. | | {{iflenge}} | [if len]gth [g]reater than or [e]qual to. | | {{str ≥ len}} | To check if a string is "longer or equally long" or "shorter" than a given length. | | {{str ≤ len}} | To check if a string is "shorter or equally long" or "longer" than a given length. | | {{str ≠ len}} | To check if a string is "not equal" or "equal" to a given length. | | {{str ≤ ≥ len}} | To check if a string is "shorter", "equal", or "longer" than a given length. |
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Analysis and technical |
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| {{str endswith}} | To check if a string ends with a given string. | {{str find}}
{{strfind short}} | Returns the numerical location of a given string in a string. | | {{str find0}} | Zero-based substring search. | | {{str sub find}} | Searches a substring in a string at the given offset. | | {{str letter}} | Returns the number of letters that begin a string. | | {{str number}} | Returns the number of numbers that begin a string. | | {{str gtr str}} | Compares two strings for alphabetical order, and returns a value accordingly. |
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