Module:String/doc/ja

{{#switch: {{Languages|Module:String/doc}} {{Shared Template Warning|Module:String|Module:String}} このモジュールは、基礎的な文字列関数へのアクセスを提供することを目的としています.

ここで提供されているほとんどの関数は、名前付きのパラメーター、無名のパラメーター、またはその混合で呼び出せます. 名前付きパラメーターが使用される場合、MediaWiki はパラメーターの先頭または末尾の空白類を自動的に除去します. 使用目的に応じて、そのような空白類を残したり、除去したりすることが有利な場合があります.

グローバル オプション

 * または 1 を設定した場合、いかなるエラー状態でも、エラー メッセージではなく、空の文字列が返されます.
 * または 1 を設定した場合、いかなるエラー状態でも、エラー メッセージではなく、空の文字列が返されます.


 * エラーが発生した場合にエラー メッセージに含めるカテゴリ名を指定します. 既定のカテゴリは  です.
 * エラーが発生した場合にエラー メッセージに含めるカテゴリ名を指定します. 既定のカテゴリは  です.


 * If set to or 1, no category will be added if an error is generated.
 * If set to or 1, no category will be added if an error is generated.

Unit tests for this module are available at Module:String/testcases.

This function returns the length of the target string.

使用法:



または



Parameters:


 * The string whose length to report
 * The string whose length to report


 * This function returns a substring of the target string at specified indices.

使用法:



または



Parameters:


 * The string to return a subset of
 * The string to return a subset of


 * The first index of the substring to return, defaults to 1.
 * The first index of the substring to return, defaults to 1.


 * The last index of the string to return, defaults to the last character.
 * 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.

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

使用法:



OR



Parameters:


 * The string to search
 * The string to search


 * The pattern or string to find within the string
 * The pattern or string to find within the string


 * The index within the source string to start the search. The first character of the string has index 1. Defaults to 1.
 * The index within the source string to start the search. The first character of the string has index 1. Defaults to 1.


 * 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 . If a negative number is specified then a match is returned counting from the last match. Hence   is the same as requesting the last match. Defaults to 1.
 * 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 . If a negative number is specified then a match is returned counting from the last match. Hence   is the same as requesting the last match. Defaults to 1.


 * Boolean flag indicating that pattern should be understood as plain text and not as a Lua-style regular expression. Defaults to.
 * Boolean flag indicating that pattern should be understood as plain text and not as a Lua-style regular expression. Defaults to.


 * If no match is found, output the "nomatch" value rather than an error.
 * If no match is found, output the "nomatch" value rather than an error.

If the  or   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, then the error will be suppressed and an empty string will be returned on any failure.

For information on constructing Lua patterns, a form of regular expression, see:


 * Lua reference: Patterns - as of version 5.1

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

使用法:



OR



Parameters:


 * The string to search
 * The string to search


 * The index for the character to return
 * 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 backwards from the end of the string. In other words  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.

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

使用法:



OR



Parameters:


 * The string to search
 * The string to search


 * The string or pattern to find within source
 * The string or pattern to find within source


 * The index within the source string to start the search, defaults to 1
 * The index within the source string to start the search, defaults to 1


 * Boolean flag indicating that target should be understood as plain text and not as a Lua-style regular expression, defaults to
 * Boolean flag indicating that target should be understood as plain text and not as a Lua-style regular expression, defaults to

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 / empty, this function also returns 0.

This function should be safe for UTF-8 strings.

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

使用法:



OR



Parameters:


 * The string to search
 * The string to search


 * The string or pattern to find within source
 * The string or pattern to find within source


 * The replacement text
 * The replacement text


 * The number of occurrences to replace; defaults to all
 * The number of occurrences to replace; defaults to all


 * 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
 * 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

Repeats a string n times.

使用法:



Parameters:


 * The string to repeat
 * The string to repeat


 * The number of repetitions.
 * The number of repetitions.

Example gives

}}
 * #default=