From Wikipedia, the free encyclopedia
This template uses
Lua :
This string handling template returns the number of times that a pattern or search-string occurs in a source string. Counts non-overlapping matches only.
Usage
{{Str count|source string|pattern|plain_flag}}
If there is no occurrence of the source string in the pattern, this template returns 0.
Parameters
There are three parameters; the first two are required:
|source=
– the source string. Required; alias: |1=
.
|pattern=
– the search-string or pattern to look for in the source string. Required; alias: |2=
.
|plain=
– a boolean flag indicating that pattern should be understood as plain text and not as a
Scribunto ustring pattern (a unicode-friendly
Lua -style
regular expression ). Optional; default: true.
Examples
{{
str count |aabbacccaddaeeeeaffff|a}}
→ 5
{{
str count |0123456789ABCDEF|X}}
→ 0
{{
str count |Wikipedia:Manual of Style/Words to watch|:}}
→ 1
{{
str count |Wikipedia:Manual of Style/Words to watch|a}}
→ 4
{{
str count |abababa|aba}}
→ 2 // counts non-overlapping occurrences (matches must be disjoint)
See also
String-handling templates
(help page)
Substring (select chunk of string by its position)
{{
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.
Trimming (select/remove chunk of string by character type)
{{
trim }} Trim any leading or trailing whitespace {{
str letter/trim }} Trim down to the beginning letters. {{
str number/trim }} Trim down to the beginning numbers. {{
trim brackets }} Trim any leading or trailing square brackets. {{
trim quotes }} Trim leading or trailing matching quotes. {{
trim leading }} Trim up to six instances of specified <prefix>.
Select/remove specific item from string
{{
ship prefix }} Returns the length of a ship's name prefix, if listed (ship names). {{
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.
Insertion, replacement and length
{{
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.
{{
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.
Analysis and searching
{{
str startswith }} {{
str endswith }} Check if a string starts or ends with a given string. {{
str find }} , {{
strfind short }} Returns the numerical location of a given string in a string. {{
in string }} Returns optional string when given string is not found {{
str count }} Count the number of occurrences of a pattern within a string. {{
reSwitch }} Match one or multiple patterns with a variety of possible outputs.
{{
a or an }} Takes a noun and produces the appropriate indefinite article, based on whether the first letter is a vowel. {{
Array }} Array manipulation and retrieval. {{
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.
Modules and built-in functions