Difference between revisions of "Module:String/doc"

Latest revision as of 20:56, 24 July 2020

This module is intended to provide access to basic string functions.

Most of the functions provided here can be invoked with named parameters, unnamed parameters, or a mixture. If named parameters are used, MediaWiki will automatically remove any leading or trailing whitespace from the parameter. Depending on the intended use, it may be advantageous to either preserve or remove such whitespace.

Global options

|ignore_errors=: If set to true or 1, any error condition will result in an empty string being returned rather than an error message.
|error_category=: If an error occurs, specifies the name of a category to include with the error message. The default category is “Errors reported by Module String”.
|no_category=: If set to true or 1, no category will be added if an error is generated.

len

The len function returns the length of the target string.

Usage

{{#invoke:String|len|target_string}}

{{#invoke:String|len|s=target_string}}

Parameter

|s=: The string whose length to report.

Examples

{{#invoke:String|len|abcdefghi}} → 9
{{#invoke:String|len|s=abcdefghi}} → 9

sub

The sub function returns a substring of the target string at specified indices.

Usage

{{#invoke:String|sub|target_string|start_index|end_index}}

{{#invoke:String|sub|s=target_string|i=start_index|j=end_index}}

Parameters

|s=: The string to return a subset of.
|i=: The first index of the substring to return, defaults to 1.
|j=: The last index of the string to return, defaults to the last character.

The first character of the string is assigned an index of 1. If either |i= or |j= is a negative value, it is interpreted the same as selecting a character by counting from the end of the string. Hence, a value of -1 is the same as selecting the last character of the string.

If the requested indices are out of range for the given string, an error is reported.

Examples

{{#invoke:String|sub|abcdefghi}} → abcdefghi
{{#invoke:String|sub|s=abcdefghi}} → abcdefghi
{{#invoke:String|sub|abcdefghi|3}} → cdefghi
{{#invoke:String|sub|s=abcdefghi|i=3}} → cdefghi
{{#invoke:String|sub|abcdefghi|3|4}} → cd
{{#invoke:String|sub|s=abcdefghi|i=3|j=4}} → cd

sublength

The sublength function is kept in order to maintain older templates. It returns a substring of the target string starting at a specified index and of a specified length.

Usage

{{#invoke:String|sublength|s=target_string|i=start_index|len=length}}

Parameters

|s=: The string.
|i=: The starting index of the substring to return. The first character of the string is assigned an index of 0.
|len=: The length of the string to return, defaults to the last character.

Examples

{{#invoke:String|sublength|s=abcdefghi}} → abcdefghi
{{#invoke:String|sublength|s=abcdefghi|i=3}} → defghi
{{#invoke:String|sublength|s=abcdefghi|i=3|len=4}} → defg

match

The match function returns a substring from the source string that matches a specified pattern.

Usage

{{#invoke:String|match|source_string|pattern_string|start_index|match_number|plain_flag|nomatch_output}}

{{#invoke:String|match|s=source_string|pattern=pattern_string|start=start_index|match=match_number|plain=plain_flag|nomatch=nomatch_output}}

Parameters

|s=: The string to search.
|pattern=: The pattern or string to find within the string.
|start=: The index within the source string to start the search. The first character of the string has index 1. Defaults to 1.
|match=: In some cases it may be possible to make multiple matches on a single string. This specifies which match to return, where the first match is |match=1. If a negative number is specified then a match is returned counting from the last match. Hence |match=-1 is the same as requesting the last match. Defaults to 1.
|plain=: 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). Defaults to false (to change: |plain=true).
|nomatch=: If no match is found, output the nomatch value rather than an error.
|ignore_errors=: If no match is found and |ignore_errors=true, output an empty string rather than an error.

If the match_number or start_index are out of range for the string being queried, then this function generates an error. An error is also generated if no match is found. If one adds the parameter |ignore_errors=true, then the error will be suppressed and an empty string will be returned on any failure.

Examples

{{#invoke:String|match|abc123def456|%d+}} → 123
{{#invoke:String|match|s=abc123def456|pattern=%d+}} → 123
{{#invoke:String|match|abc123def456|%d+|6}} → 3
{{#invoke:String|match|s=abc123def456|pattern=%d+|start=6}} → 3
{{#invoke:String|match|s=abc123def456|pattern=%d+|start=6|match=2}} → 456
{{#invoke:String|match|s=abc123%d+|pattern=%d+}} → 123
{{#invoke:String|match|s=abc123%d+|pattern=%d+|plain=true}} → %d+
{{#invoke:String|match|s=abc|pattern=%d|nomatch=No numeric characters in string}} → No numeric characters in string
{{#invoke:String|match|s=abc|pattern=%d|ignore_errors=true}} →
{{#invoke:String|match|s=0012001200|pattern=0*(%d*)}} → 12001200

pos

The pos function returns a single character from the target string at position pos.

Usage

{{#invoke:String|pos|target_string|index_value}}

{{#invoke:String|pos|target=target_string|pos=index_value}}

Parameters

|target=: The string to search.
|pos=: The index for the character to return.

The first character has an index value of 1. If one requests a negative value, this function will select a character by counting backward from the end of the string. In other words, |pos=-1 is the same as asking for the last character.

A requested value of zero, or a value greater than the length of the string returns an error.

Examples

{{#invoke:String|pos|abcdefghi|4}} → c
{{#invoke:String|pos|target=abcdefghi|pos=4}} → d

str_find

The str-find function duplicates the behavior of {{str_find}}, including all of its quirks. This is provided in order to support existing templates but is NOT RECOMMENDED for new code and templates. New code is recommended to use the “find” function instead.

Returns the first index in source that is a match to target. Indexing is 1‐based, and the function returns “-1” if the target_string is not present in source_string.

Important Note: If the target_string is empty or missing, this function returns a value of “1”, which is generally unexpected behavior, and must be accounted for separately.

Usage

{{#invoke:String|find|source_string|target_string}}

{{#invoke:String|find|source=source_string|target=target_string}}

Parameters

|source=: The string to search.
|target=: The string to find within source.

Examples

{{#invoke:String|str_find|abc123def}} → 1
{{#invoke:String|str_find|source=abc123def}} → 1
{{#invoke:String|str_find|abc123def|123}} → 4
{{#invoke:String|str_find|source=abc123def|target=123}} → 4

find

The find function allows one to search for a target string or pattern within another string.

Usage

{{#invoke:String|find|source_string|target_string|start_index|plain_flag}}

{{#invoke:String|find|source=source_string|target=target_string|start=start_index|plain=plain_flag}}

Parameters

|source=: The string to search.
|target=: The string or pattern to find within source.
|start=: The index within the source string to start the search, defaults to 1.
|plain=: Boolean flag indicating that target should be understood as plain text and not as a Scribunto ustring pattern (a unicode‐friendly Lua‐style regular expression); defaults to true.

This function returns the first index >= start where target can be found within source. Indices are 1‐based. If target is not found, then this function returns “0”. If either |source= or |target= are missing or empty, this function also returns “0”.

This function should be safe for UTF-8 strings.

Examples

{{#invoke:String|find|abc123def|12}} → 4
{{#invoke:String|find|source=abc123def|target=12}} → 4
{{#invoke:String|find|source=abc123def|target=pqr}} → 0
{{#invoke:String|find| abc123def |123}} → 5
{{#invoke:String|find|source= abc123def |target= 123 }} → 4
{{#invoke:String|find|source=abc123def|target=%d|start=3|plain=false}} → 4

When using unnamed parameters, preceding and trailing spaces are kept and counted:

{{#invoke:String|find| abc123def |c|false}} → 4
{{#invoke:String|find|source= abc123def |target=c|plain=false}} → 3

replace

The replace function allows one to replace a target string or pattern within another string.

Usage

{{#invoke:String|replace|source_str|pattern_string|replace_string|replacement_count|plain_flag}}

{{#invoke:String|replace|source=source_string|pattern=pattern_string|replace=replace_string|count=replacement_count|plain=plain_flag}}

Parameters

|source=: The string to search.
|pattern=: The string or pattern to find within source.
|replace=: The replacement text.
|count=: The number of occurrences to replace; defaults to all.
|plain=: 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); defaults to true.

Examples

{{#invoke:String|replace|abc123def456|123|N}} → abcNdef456
{{#invoke:String|replace|source=abc123def456|pattern=123|replace=N}} → abcNdef456
{{#invoke:String|replace|abc123def456|%d+|N|1|false}} → abcNdef456
{{#invoke:String|replace|source=abc123def456|pattern=%d+|replace=N|count=1|plain=false}} → abcNdef456
{{#invoke:String|replace|source=abc123def456|pattern=%d+|replace=N|plain=false}} → abcNdefN
{{#invoke:String|replace|source=0012001200|pattern=^0*|plain=false}} → 12001200

rep

The rep function repeats a string n times. A simple function to pipe string.rep to templates.

Usage

{{#invoke:String|rep|source|count}}

Parameters

|source=: The string to repeat.
|count=: The number of repetitions.

Examples

{{#invoke:String|rep|hello|3}} → hellohellohello
{{#invoke:String|rep| hello |3}} → hello hello hello

escapePattern

The escapePattern function escapes magic characters in a Lua pattern. If you convert a string using this function, then the converted string will be interpreted as a literal string in functions that accept Lua patterns. For example, ., meaning “any character”, will be converted to %., meaning the literal character “.”.

Usage

{{#invoke:String|escapePattern|pattern_string}}

Parameters

|pattern_string=: The pattern string to escape.

Examples

{{#invoke:String|escapePattern|A.D.}} → A%.D%.
{{#invoke:String|escapePattern|10%}} → 10%%

count

The count function counts the number of times a given pattern appears in the arguments that get passed on to this module.

Usage

{{#invoke:String|count|source_str|pattern_string|plain_flag}}

{{#invoke:String|count|source=source_string|pattern=pattern_string|plain=plain_flag}}

Parameters

|source_string=: The string to count occurrences in.
|pattern=: The string or pattern to count occurrences of within source.
|plain=: 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); defaults to true.

Examples

Count of a: {{#invoke:String|count|aabbcc|a}} → 2
Count of either a or c:{{#invoke:String|count|aabbcc|[ac]|plain=false}} → 4
Count of not a : {{#invoke:String|count|aaabaaac|[^a]|plain=false}} → 2
Count of starts with a : {{#invoke:String|count|aaabaaac|^a|plain=false}} → 1

join

The join function joins all strings passed as arguments into one string, treating the first argument as a separator

Usage

{{#invoke:String|join|separator|string1|string2|…}}

Parameters

|separator=: String that separates each string being joined together.; Note that leading and trailing spaces are not stripped from the separator.
|string1=, |string2=, etc.: Strings being joined together.

Examples

{{#invoke:String|join|x|foo|bar|baz}} → fooxbarxbaz
{{#invoke:String|join||a|b|c|d|e|f|g}} → abcdefg
{{#invoke:String|join|,|a|b|c|d|e|f|g}} → a,b,c,d,e,f,g
{{#invoke:String|join|, |a|b|c|d|e|f|g} → a, b, c, d, e, f, g
{{#invoke:String|join| – |a|b|c|d|e|f|g}} → a – b – c – d – e – f – g

The preceding example uses the HTML entity – but the unicode character also works.

endswith

The endswith function returns “yes” if the source string ends with the pattern string. Both strings are trimmed before use.

Usage

{{#invoke:String|count|source_str|pattern_string}}

{{#invoke:String|count|source=source_string|pattern=pattern_string}}

Examples

{{#invoke:String|endswith|xxxyyy|y}} → yes
{{#invoke:String|endswith|xxxyyy|z}} →

@@ Line 1: / Line 1: @@
+{{TOC limit|2}}
 This module is intended to provide access to basic string functions.
@@ Line 11: / Line 12: @@
 == len ==
-This function returns the length of the target string.
+The {{strong|len}} function returns the length of the target string.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|len|{{var|target_string}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|len|s={{var|target_string}}}}</code>
-Or
+=== Parameter ===
-: <code><nowiki>{{#invoke:</nowiki>String|len|s={{var|target_string}}}}</code>
+; {{para|s}} : The string whose length to report.
-Parameter:
+=== Examples ===
-; {{para|s}} : The string whose length to report.
-Examples:
 * <code><nowiki>{{#invoke:String|len|abcdefghi}}</nowiki></code> → {{#invoke:String|len|abcdefghi}}
 * <code><nowiki>{{#invoke:String|len|s=abcdefghi}}</nowiki></code> → {{#invoke:String|len|s=abcdefghi}}
@@ Line 29: / Line 30: @@
 == sub ==
-This function returns a substring of the target string at specified indices.
+The {{strong|sub}} function returns a substring of the target string at specified indices.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|sub|{{var|target_string}}|{{var|start_index}}|{{var|end_index}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|sub|s={{var|target_string}}|i={{var|start_index}}|j={{var|end_index}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|sub|s={{var|target_string}}|i={{var|start_index}}|j={{var|end_index}}}}</code>
-Parameters:
 ; {{para|s}} : The string to return a subset of.
 ; {{para|i}} : The first index of the substring to return, defaults to {{code|1}}.
@@ Line 47: / Line 47: @@
 If the requested indices are out of range for the given string, an error is reported.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|sub|abcdefghi}}</nowiki></code> → {{#invoke:String|sub|abcdefghi}}
 * <code><nowiki>{{#invoke:String|sub|s=abcdefghi}}</nowiki></code> → {{#invoke:String|sub|s=abcdefghi}}
@@ Line 57: / Line 58: @@
 == sublength ==
-This function is kept in order to maintain older templates. It returns a substring of the target string starting at a specified index and of a specified length.
+The {{strong|sublength}} function is kept in order to maintain older templates. It returns a substring of the target string starting at a specified index and of a specified length.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|sublength|s={{var|target_string}}|i={{var|start_index}}|len={{var|length}}}}</code>
-Parameters:
+=== Parameters ===
 ; {{para|s}} : The string.
 ; {{para|i}} : The starting index of the substring to return. The first character of the string is assigned an index of 0.
 ; {{para|len}} : The length of the string to return, defaults to the last character.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|sublength|s=abcdefghi}}</nowiki></code> → {{#invoke:String|sublength|s=abcdefghi}}
 * <code><nowiki>{{#invoke:String|sublength|s=abcdefghi|i=3}}</nowiki></code> → {{#invoke:String|sublength|s=abcdefghi|i=3}}
@@ Line 74: / Line 78: @@
 == match ==
-This function returns a substring from the source string that matches a specified pattern.
+The {{strong|match}} function returns a substring from the source string that matches a specified pattern.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|match|{{var|source_string}}|{{var|pattern_string}}|{{var|start_index}}|{{var|match_number}}|{{var|plain_flag}}|{{var|nomatch_output}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|match|s={{var|source_string}}|pattern={{var|pattern_string}}|start={{var|start_index}}|match={{var|match_number}}|plain={{var|plain_flag}}|nomatch={{var|nomatch_output}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|match|s={{var|source_string}}|pattern={{var|pattern_string}}|start={{var|start_index}}|match={{var|match_number}}|plain={{var|plain_flag}}|nomatch={{var|nomatch_output}}}}</code>
-Parameters:
 ; {{para|s}} : The string to search.
 ; {{para|pattern}} : The pattern or string to find within the string.
@@ Line 95: / Line 98: @@
 If one adds the parameter {{para|ignore_errors|true}}, then the error will be suppressed and an empty string will be returned on any failure.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|match|abc123def456|%d+}}</nowiki></code> → {{#invoke:String|match|abc123def456|%d+}}
 * <code><nowiki>{{#invoke:String|match|s=abc123def456|pattern=%d+}}</nowiki></code> → {{#invoke:String|match|s=abc123def456|pattern=%d+}}
@@ Line 109: / Line 113: @@
 == pos ==
-This function returns a single character from the target string at position pos.
+The {{strong|pos}} function returns a single character from the target string at position pos.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|pos|{{var|target_string}}|{{var|index_value}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|pos|target={{var|target_string}}|pos={{var|index_value}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|pos|target={{var|target_string}}|pos={{var|index_value}}}}</code>
-Parameters:
 ; {{para|target}} : The string to search.
 ; {{para|pos}} : The index for the character to return.
@@ Line 126: / Line 129: @@
 A requested value of zero, or a value greater than the length of the string returns an error.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|pos|abcdefghi|4}}</nowiki></code> → {{#invoke:String|pos| abcdefghi|4}}
 * <code><nowiki>{{#invoke:String|pos|target=abcdefghi|pos=4}}</nowiki></code> → {{#invoke:String|pos|target=abcdefghi|pos=4}}
@@ Line 132: / Line 136: @@
 == str_find ==
-This function duplicates the behavior of {{tlg|code=yes|nolink=yes|str_find}}, including all of its quirks. This is provided in order to support existing templates but is NOT RECOMMENDED for new code and templates. New code is recommended to use the “find” function instead.
+The {{strong|str-find}} function duplicates the behavior of {{tlg|code=yes|nolink=yes|str_find}}, including all of its quirks. This is provided in order to support existing templates but is NOT RECOMMENDED for new code and templates. New code is recommended to use the “find” function instead.
 Returns the first index in {{code|source}} that is a match to {{code|target}}. Indexing is 1‐based, and the function returns “-1” if the {{var|target_string}} is not present in {{var|source_string}}.
@@ Line 138: / Line 142: @@
 Important Note: If the {{var|target_string}} is empty or missing, this function returns a value of “1”, which is generally unexpected behavior, and must be accounted for separately.
-Usage:
+=== Usage ===
 : <code><nowiki>{{#invoke:</nowiki>String|find|{{var|source_string}}|{{var|target_string}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|find|source={{var|source_string}}|target={{var|target_string}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|find|source={{var|source_string}}|target={{var|target_string}}}}</code>
-Parameters:
 ; {{para|source}} : The string to search.
 ; {{para|target}} : The string to find within source.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|str_find|abc123def}}</nowiki></code> → {{#invoke:String|str_find|abc123def}}
 * <code><nowiki>{{#invoke:String|str_find|source=abc123def}}</nowiki></code> → {{#invoke:String|str_find|source=abc123def}}
-* <code><nowiki>{{#invoke:String|str_find|abc123def|123}}</nowiki></code> → {{#invoke:String|str_find| abc123def |123}}
+* <code><nowiki>{{#invoke:String|str_find|abc123def|123}}</nowiki></code> → {{#invoke:String|str_find|abc123def|123}}
 * <code><nowiki>{{#invoke:String|str_find|source=abc123def|target=123}}</nowiki></code> → {{#invoke:String|str_find|source=abc123def|target=123}}
 == find ==
-This function allows one to search for a target string or pattern within another string.
+The {{strong|find}} function allows one to search for a target string or pattern within another string.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|find|{{var|source_string}}|{{var|target_string}}|{{var|start_index}}|{{var|plain_flag}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|find|source={{var|source_string}}|target={{var|target_string}}|start={{var|start_index}}|plain={{var|plain_flag}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|find|source={{var|source_string}}|target={{var|target_string}}|start={{var|start_index}}|plain={{var|plain_flag}}}}</code>
-Parameters:
 ; {{para|source}} : The string to search.
 ; {{para|target}} : The string or pattern to find within source.
@@ Line 176: / Line 179: @@
 This function should be safe for UTF-8 strings.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|find|abc123def|12}}</nowiki></code> → {{#invoke:String|find|abc123def|12}}
 * <code><nowiki>{{#invoke:String|find|source=abc123def|target=12}}</nowiki></code> → {{#invoke:String|find|source=abc123def|target=12}}
@@ Line 182: / Line 186: @@
 * <code><nowiki>{{#invoke:String|find| abc123def |123}}</nowiki></code> → {{#invoke:String|find| abc123def |123}}
 * <code><nowiki>{{#invoke:String|find|source= abc123def |target= 123 }}</nowiki></code> → {{#invoke:String|find|source= abc123def |target= 123 }}
-* <code><nowiki>{{#invoke:String|find|source=abc123def|target=%d |start=3 |plain=false }}</nowiki></code> → {{#invoke:String|find|source=abc123def|target=%d |start=3 |plain=false }}
+* <code><nowiki>{{#invoke:String|find|source=abc123def|target=%d|start=3|plain=false}}</nowiki></code> → {{#invoke:String|find|source=abc123def|target=%d|start=3|plain=false}}
 When using unnamed parameters, preceding and trailing spaces are kept and counted:
@@ Line 190: / Line 194: @@
 == replace ==
-This function allows one to replace a target string or pattern within another string.
+The {{strong|replace}} function allows one to replace a target string or pattern within another string.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|replace|{{var|source_str}}|{{var|pattern_string}}|{{var|replace_string}}|{{var|replacement_count}}|{{var|plain_flag}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|replace|source={{var|source_string}}|pattern={{var|pattern_string}}|replace={{var|replace_string}}|count={{var|replacement_count}}|plain={{var|plain_flag}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|replace|source={{var|source_string}}|pattern={{var|pattern_string}}|replace={{var|replace_string}}|count={{var|replacement_count}}|plain={{var|plain_flag}}}}</code>
-Parameters:
 ; {{para|source}} : The string to search.
 ; {{para|pattern}} : The string or pattern to find within source.
@@ Line 206: / Line 209: @@
 ; {{para|plain}} : Boolean flag indicating that pattern should be understood as plain text and not as a [[mw:Extension:Scribunto/Lua reference manual#Ustring patterns|Scribunto ustring pattern]] (a unicode‐friendly Lua‐style regular expression); defaults to {{code|true}}.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|replace|abc123def456|123|N}}</nowiki></code> → {{#invoke:String|replace|abc123def456|123|N}}
 * <code><nowiki>{{#invoke:String|replace|source=abc123def456|pattern=123|replace=N}}</nowiki></code> → {{#invoke:String|replace|source=abc123def456|pattern=123|replace=N}}
@@ Line 216: / Line 220: @@
 == rep ==
-This function repeats a string {{var|n}} times. A simple function to pipe string.rep to templates.
+The {{strong|rep}} function repeats a string {{var|n}} times. A simple function to pipe string.rep to templates.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|rep|{{var|source}}|{{var|count}}}}</code>
-Parameters:
+=== Parameters ===
 ; {{para|source}} : The string to repeat.
 ; {{para|count}} : The number of repetitions.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|rep|hello|3}}</nowiki></code> → {{#invoke:String|rep|hello|3}}
 * <code><nowiki>{{#invoke:String|rep| hello |3}}</nowiki></code> → {{#invoke:String|rep| hello |3}}
@@ Line 231: / Line 238: @@
 == escapePattern ==
-This function escapes magic characters in a [[mw:LUAREF#Patterns|Lua pattern]]. If you convert a string using this function, then the converted string will be interpreted as a literal string in functions that accept Lua patterns. For example, {{code|.}}, meaning “any character”, will be converted to {{code|%.}}, meaning the literal character “.”.
+The {{strong|escapePattern}} function escapes magic characters in a [[mw:LUAREF#Patterns|Lua pattern]]. If you convert a string using this function, then the converted string will be interpreted as a literal string in functions that accept Lua patterns. For example, {{code|.}}, meaning “any character”, will be converted to {{code|%.}}, meaning the literal character “.”.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:String|escapePattern|</nowiki>{{var|pattern_string}}<nowiki>}}</nowiki></code>
-Parameters:
+=== Parameters ===
 ; {{para|pattern_string}} : The pattern string to escape.
-Examples:
+=== Examples ===
 * <code><nowiki>{{#invoke:String|escapePattern|A.D.}}</nowiki></code> → {{#invoke:String|escapePattern|A.D.}}
 * <code><nowiki>{{#invoke:String|escapePattern|10%}}</nowiki></code> → {{#invoke:String|escapePattern|10%}}
@@ Line 245: / Line 255: @@
 == count ==
-This function counts the number of times a given pattern appears in the arguments that get passed on to this module.
+The {{strong|count}} function counts the number of times a given pattern appears in the arguments that get passed on to this module.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|count|{{var|source_str}}|{{var|pattern_string}}|{{var|plain_flag}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|count|source={{var|source_string}}|pattern={{var|pattern_string}}|plain={{var|plain_flag}}}}</code>
-Or
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|count|source={{var|source_string}}|pattern={{var|pattern_string}}|plain={{var|plain_flag}}}}</code>
-Parameters:
 ; {{para|source_string}} : The string to count occurrences in.
 ; {{para|pattern}} : The string or pattern to count occurrences of within source.
 ; {{para|plain}} : Boolean flag indicating that pattern should be understood as plain text and not as a [[mw:Extension:Scribunto/Lua reference manual#Ustring patterns|Scribunto ustring pattern]] (a unicode‐friendly Lua‐style regular expression); defaults to {{code|true}}.
-Examples:
+=== Examples ===
 * Count of {{var|a}}: <code><nowiki>{{#invoke:String|count|aabbcc|a}}</nowiki></code> → {{#invoke:String|count|aabbcc|a}}
 * Count of either {{var|a}} or {{var|c}}:<code><nowiki>{{#invoke:String|count|aabbcc|[ac]|plain=false}}</nowiki></code> → {{#invoke:String|count|aabbcc|[ac]|plain=false}}
@@ Line 267: / Line 277: @@
 == join ==
-This function joins all strings passed as arguments into one string, treating the first argument as a separator
+The {{strong|join}} function joins all strings passed as arguments into one string, treating the first argument as a separator
+=== Usage ===
+: <code><nowiki>{{#invoke:</nowiki>String|join|{{var|separator}}|{{var|string1}}|{{var|string2}}|…}}</code>
-Usage:
+=== Parameters ===
-: <code><nowiki>{{#invoke:</nowiki>String|join|{{var|separator}}|{{var|string1}}|{{var|string2}}|...}}</code>
-Parameters:
 ; {{para|separator}} : String that separates each string being joined together.
 : Note that leading and trailing spaces are {{em|not}} stripped from the separator.
-; {{para|string1}}, {{para|string}}, etc. : Strings being joined together.
+; {{para|string1}}, {{para|string2}}, etc. : Strings being joined together.
+=== Examples ===
-Examples:
 * <code><nowiki>{{#invoke:String|join|x|foo|bar|baz}}</nowiki></code> → {{#invoke:String|join|x|foo|bar|baz}}
 * <code><nowiki>{{#invoke:String|join||a|b|c|d|e|f|g}}</nowiki></code> → {{#invoke:String|join||a|b|c|d|e|f|g}}
@@ Line 288: / Line 301: @@
 == endswith ==
-This function returns “yes” if the source string ends with the pattern string. Both strings are trimmed before use.
+The {{strong|endswith}} function returns “yes” if the source string ends with the pattern string. Both strings are trimmed before use.
+=== Usage ===
-Usage:
 : <code><nowiki>{{#invoke:</nowiki>String|count|{{var|source_str}}|{{var|pattern_string}}}}</code>
+: <code><nowiki>{{#invoke:</nowiki>String|count|source={{var|source_string}}|pattern={{var|pattern_string}}}}</code>
-Or
+=== Examples ===
-: <code><nowiki>{{#invoke:</nowiki>String|count|source={{var|source_string}}|pattern={{var|pattern_string}}}}</code>
-Examples:
 * <code><nowiki>{{#invoke:String|endswith|xxxyyy|y}}</nowiki></code> → {{#invoke:String|endswith|xxxyyy|y}}
 * <code><nowiki>{{#invoke:String|endswith|xxxyyy|z}}</nowiki></code> → {{#invoke:String|endswith|xxxyyy|z}}
 [[Category:Modules]][[Category:Modules documentation]]

Difference between revisions of "Module:String/doc"

Latest revision as of 20:56, 24 July 2020

Contents

Global options

len

Usage

Parameter

Examples

sub

Usage

Parameters

Examples

sublength

Usage

Parameters

Examples

match

Usage

Parameters

Examples

pos

Usage

Parameters

Examples

str_find

Usage

Parameters

Examples

find

Usage

Parameters

Examples

replace

Usage

Parameters

Examples

rep

Usage

Parameters

Examples

escapePattern

Usage

Parameters

Examples

count

Usage

Parameters

Examples

join

Usage

Parameters

Examples

endswith

Usage

Examples

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