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<!DOCTYPE html>
<html>
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Class: String
— Documentation by YARD 0.9.20
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<span class="title">String</span>
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<div id="content"><h1>Class: String
</h1>
<div class="box_info">
<dl>
<dt>Inherits:</dt>
<dd>
<span class="inheritName">Object</span>
<ul class="fullTree">
<li>Object</li>
<li class="next">String</li>
</ul>
<a href="#" class="inheritanceTree">show all</a>
</dd>
</dl>
<dl>
<dt>Includes:</dt>
<dd><span class='object_link'><a href="Comparable.html" title="Comparable (module)">Comparable</a></span></dd>
</dl>
<dl>
<dt>Defined in:</dt>
<dd>mrblib/string.rb<span class="defines">,<br />
src/string.c,<br /> mrbgems/mruby-sprintf/mrblib/string.rb,<br /> mrbgems/mruby-string-ext/mrblib/string.rb</span>
</dd>
</dl>
</div>
<h2>Overview</h2><div class="docstring">
<div class="discussion">
<p>String</p>
<p>ISO 15.2.10</p>
</div>
</div>
<div class="tags">
</div>
<h2>
Instance Method Summary
<small><a href="#" class="summary_toggle">collapse</a></small>
</h2>
<ul class="summary">
<li class="public ">
<span class="summary_signature">
<a href="#%25-instance_method" title="#% (instance method)">#<strong>%</strong>(args) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#*-instance_method" title="#* (instance method)">#<strong>*</strong>(integer) ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Copy—Returns a new <code>String</code> containing <i>integer</i> copies of the receiver.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#%2B-instance_method" title="#+ (instance method)">#<strong>+</strong>(other_str) ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Concatenation—Returns a new <code>String</code> containing <i>other_str</i> concatenated to <i>str</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#<<-instance_method" title="#<< (instance method)">#<strong><<</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Append—Concatenates the given object to <i>str</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#<=>-instance_method" title="#<=> (instance method)">#<strong><=></strong>(other_str) ⇒ -1, ... </a>
</span>
<span class="summary_desc"><div class='inline'><p>Comparison—Returns -1 if <i>other_str</i> is less than, 0 if <i>other_str</i> is equal to, and +1 if <i>other_str</i> is greater than <i>str</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#==-instance_method" title="#== (instance method)">#<strong>==</strong>(obj) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Equality— If <i>obj</i> is not a <code>String</code>, returns <code>false</code>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#[]-instance_method" title="#[] (instance method)">#<strong>[]</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Element Reference—If passed a single <code>Fixnum</code>, returns the code of the character at that position.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#[]=-instance_method" title="#[]= (instance method)">#<strong>[]=</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Modify +self+ by replacing the content of +self+.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__lines-instance_method" title="#__lines (instance method)">#<strong>__lines</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#__sub_replace-instance_method" title="#__sub_replace (instance method)">#<strong>__sub_replace</strong>(pre, m, post) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>private method for gsub/sub.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#bytes-instance_method" title="#bytes (instance method)">#<strong>bytes</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns an array of bytes in <em>str</em>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#bytesize-instance_method" title="#bytesize (instance method)">#<strong>bytesize</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#byteslice-instance_method" title="#byteslice (instance method)">#<strong>byteslice</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Byte Reference—If passed a single Integer, returns a substring of one byte at that position.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#capitalize-instance_method" title="#capitalize (instance method)">#<strong>capitalize</strong> ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a copy of <i>str</i> with the first character converted to uppercase and the remainder to lowercase.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#capitalize!-instance_method" title="#capitalize! (instance method)">#<strong>capitalize!</strong> ⇒ String<sup>?</sup> </a>
</span>
<span class="summary_desc"><div class='inline'><p>Modifies <i>str</i> by converting the first character to uppercase and the remainder to lowercase.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#casecmp-instance_method" title="#casecmp (instance method)">#<strong>casecmp</strong>(str) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>call-seq: str.casecmp(other_str) -> -1, 0, +1 or nil.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#casecmp%3F-instance_method" title="#casecmp? (instance method)">#<strong>casecmp?</strong>(str) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>call-seq: str.casecmp?(other) -> true, false, or nil.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chars-instance_method" title="#chars (instance method)">#<strong>chars</strong>(&block) ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chomp-instance_method" title="#chomp (instance method)">#<strong>chomp</strong>(separator = "\n") ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a new <code>String</code> with the given record separator removed from the end of <i>str</i> (if present).</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chomp!-instance_method" title="#chomp! (instance method)">#<strong>chomp!</strong>(separator = "\n") ⇒ String<sup>?</sup> </a>
</span>
<span class="summary_desc"><div class='inline'><p>Modifies <i>str</i> in place as described for <code>String#chomp</code>, returning <i>str</i>, or <code>nil</code> if no modifications were made.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chop-instance_method" title="#chop (instance method)">#<strong>chop</strong> ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a new <code>String</code> with the last character removed.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chop!-instance_method" title="#chop! (instance method)">#<strong>chop!</strong> ⇒ String<sup>?</sup> </a>
</span>
<span class="summary_desc"><div class='inline'><p>Processes <i>str</i> as for <code>String#chop</code>, returning <i>str</i>, or <code>nil</code> if <i>str</i> is the empty string.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#chr-instance_method" title="#chr (instance method)">#<strong>chr</strong> ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a one-character string at the beginning of the string.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#clear-instance_method" title="#clear (instance method)">#<strong>clear</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>call-seq: string.clear -> string.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#codepoints-instance_method" title="#codepoints (instance method)">#<strong>codepoints</strong>(&block) ⇒ Object </a>
(also: #each_codepoint)
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#concat-instance_method" title="#concat (instance method)">#<strong>concat</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>Append—Concatenates the given object to <i>str</i>.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#count-instance_method" title="#count (instance method)">#<strong>count</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'><p>call_seq: str.count([other_str]) -> integer.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#cover%3F-instance_method" title="#cover? (instance method)">#<strong>cover?</strong>(obj) ⇒ Boolean </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns <code>true</code> if +obj+ is between the begin and end of the range.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#delete-instance_method" title="#delete (instance method)">#<strong>delete</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#delete!-instance_method" title="#delete! (instance method)">#<strong>delete!</strong> ⇒ Object </a>
</span>
<span class="summary_desc"><div class='inline'>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#delete_prefix-instance_method" title="#delete_prefix (instance method)">#<strong>delete_prefix</strong>(prefix) ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a copy of <i>str</i> with leading <code>prefix</code> deleted.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#delete_prefix!-instance_method" title="#delete_prefix! (instance method)">#<strong>delete_prefix!</strong>(prefix) ⇒ self<sup>?</sup> </a>
</span>
<span class="summary_desc"><div class='inline'><p>Deletes leading <code>prefix</code> from <i>str</i>, returning <code>nil</code> if no change was made.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#delete_suffix-instance_method" title="#delete_suffix (instance method)">#<strong>delete_suffix</strong>(suffix) ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a copy of <i>str</i> with leading <code>suffix</code> deleted.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#delete_suffix!-instance_method" title="#delete_suffix! (instance method)">#<strong>delete_suffix!</strong>(suffix) ⇒ self<sup>?</sup> </a>
</span>
<span class="summary_desc"><div class='inline'><p>Deletes trailing <code>suffix</code> from <i>str</i>, returning <code>nil</code> if no change was made.</p>
</div></span>
</li>
<li class="public ">
<span class="summary_signature">
<a href="#downcase-instance_method" title="#downcase (instance method)">#<strong>downcase</strong> ⇒ String </a>
</span>
<span class="summary_desc"><div class='inline'><p>Returns a copy of <i>str</i> with all uppercase letters replaced with their lowercase counterparts.</p>
</div></span>
</li>
<li class="public ">
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<a href="#downcase!-instance_method" title="#downcase! (instance method)">#<strong>downcase!</strong> ⇒ String<sup>?</sup> </a>
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<span class="summary_desc"><div class='inline'><p>Downcases the contents of <i>str</i>, returning <code>nil</code> if no changes were made.</p>
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<span class="summary_signature">
<a href="#dump-instance_method" title="#dump (instance method)">#<strong>dump</strong> ⇒ String </a>
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<span class="summary_desc"><div class='inline'><p>Produces a version of <i>str</i> with all nonprinting characters replaced by <code>\nnn</code> notation and all special characters escaped.</p>
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<a href="#each_byte-instance_method" title="#each_byte (instance method)">#<strong>each_byte</strong>(&block) ⇒ Object </a>