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Clarified String#tr rdoc. (RickHull)

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31898 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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ryan 2011-06-01 22:29:09 +00:00
parent ffe4aff8b3
commit 172af01255
1 changed files with 12 additions and 9 deletions
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21
string.c
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@ -5228,19 +5228,22 @@ rb_str_tr_bang(VALUE str, VALUE src, VALUE repl)
/* /*
* call-seq: * call-seq:
* str.tr(from_str, to_str) -> new_str * str.tr(from_str, to_str) => new_str
* *
* Returns a copy of <i>str</i> with the characters in <i>from_str</i> replaced * Returns a copy of <i>str</i> with the characters in <i>from_str</i>
* by the corresponding characters in <i>to_str</i>. If <i>to_str</i> is * replaced by the corresponding characters in <i>to_str</i>. If
* shorter than <i>from_str</i>, it is padded with its last character. Both * <i>to_str</i> is shorter than <i>from_str</i>, it is padded with its last
* strings may use the c1--c2 notation to denote ranges of characters, and * character in order to maintain the correspondence.
* <i>from_str</i> may start with a <code>^</code>, which denotes all *
* "hello".tr('el', 'ip') #=> "hippo"
* "hello".tr('aeiou', '*') #=> "h*ll*"
*
* Both strings may use the c1-c2 notation to denote ranges of characters,
* and <i>from_str</i> may start with a <code>^</code>, which denotes all
* characters except those listed. * characters except those listed.
* *
* "hello".tr('aeiou', '*') #=> "h*ll*"
* "hello".tr('^aeiou', '*') #=> "*e**o"
* "hello".tr('el', 'ip') #=> "hippo"
* "hello".tr('a-y', 'b-z') #=> "ifmmp" * "hello".tr('a-y', 'b-z') #=> "ifmmp"
* "hello".tr('^aeiou', '*') #=> "*e**o"
*/ */
static VALUE static VALUE