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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>NSScanner class reference</title>
</head>
<body>
<font face="serif">
<a href="Base.html">Up</a>
<br />
<h1><a name="title$NSScanner">NSScanner class reference</a></h1>
<h3>Authors</h3>
<dl>
<dt>Eric Norum (<a href="mailto:eric@skatter.usask.ca"><code>eric@skatter.usask.ca</code></a>)</dt>
<dd>
</dd>
<dt>Richard Frith-Macdonald (<a href="mailto:rfm@gnu.org"><code>rfm@gnu.org</code></a>)</dt>
<dd>
</dd>
</dl>
<p><b>Copyright:</b> (C) 1996,1999 Free Software Foundation, Inc.</p>
<div>
</div>
<h1><a name="001000000000">
Software documentation for the NSScanner class
</a></h1>
<h2><a name="class$NSScanner">NSScanner</a> : <a rel="gsdoc" href="NSObject.html#class$NSObject">NSObject</a></h2>
<blockquote class="declared">
<dl>
<dt><b>Declared in:</b></dt>
<dd>Foundation/NSScanner.h</dd>
</dl>
</blockquote>
<blockquote>
<dl>
<dt><b>Conforms to:</b></dt>
<dd><a rel="gsdoc" href="NSObject.html#protocol$(NSCopying)">NSCopying</a></dd>
</dl>
</blockquote>
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
</p>
<p>
The <code>NSScanner</code> class cluster (currently a
single class in GNUstep) provides a mechanism to
parse the contents of a string into number and string
values by making a sequence of scan operations to
step through the string retrieving successive items.
</p>
<p>
</p>
<p>
You can tell the scanner whether its scanning is
supposed to be case sensitive or not, and you can
specify a set of characters to be skipped before
each scanning operation (by default, whitespace and
newlines).
</p>
<p>
</div>
<b>Method summary</b>
<ul>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner+localizedScannerWithString$">+localizedScannerWithString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner+scannerWithString$">+scannerWithString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-caseSensitive">-caseSensitive</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-charactersToBeSkipped">-charactersToBeSkipped</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-initWithString$">-initWithString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-isAtEnd">-isAtEnd</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-locale">-locale</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanCharactersFromSet$intoString$">-scanCharactersFromSet:intoString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanDecimal$">-scanDecimal:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanDouble$">-scanDouble:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanFloat$">-scanFloat:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanHexDouble$">-scanHexDouble:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanHexFloat$">-scanHexFloat:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanHexInt$">-scanHexInt:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanHexLongLong$">-scanHexLongLong:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanInt$">-scanInt:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanInteger$">-scanInteger:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanLocation">-scanLocation</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanLongLong$">-scanLongLong:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanRadixUnsignedInt$">-scanRadixUnsignedInt:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanRadixUnsignedLongLong$">-scanRadixUnsignedLongLong:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanString$intoString$">-scanString:intoString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanUpToCharactersFromSet$intoString$">-scanUpToCharactersFromSet:intoString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-scanUpToString$intoString$">-scanUpToString:intoString:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-setCaseSensitive$">-setCaseSensitive:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-setCharactersToBeSkipped$">-setCharactersToBeSkipped:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-setLocale$">-setLocale:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-setScanLocation$">-setScanLocation:</a></li>
<li><a rel="gsdoc" href="NSScanner.html#method$NSScanner-string">-string</a></li>
</ul>
<hr width="50%" align="left" />
<div class="method">
<h3><a name="method$NSScanner+localizedScannerWithString$">localizedScannerWithString: </a></h3>
+ (id) <b>localizedScannerWithString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)aString;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Returns an NSScanner instance set up to scan
<var>aString</var> (using
<a rel="gsdoc" href="#method$NSScanner-initWithString$">
-initWithString:
</a>
and with a locale set the default locale (using
<a rel="gsdoc" href="#method$NSScanner-setLocale$">
-setLocale:
</a>
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner+scannerWithString$">scannerWithString: </a></h3>
+ (id) <b>scannerWithString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)aString;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Create and return a scanner that scans
<var>aString</var>. <br /> Uses
<a rel="gsdoc" href="#method$NSScanner-initWithString$">
-initWithString:
</a>
and with no locale set.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-caseSensitive">caseSensitive </a></h3>
- (BOOL) <b>caseSensitive</b>;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
If the scanner is set to be case-sensitive in its
scanning of the string (other than characters to
be skipped), this method returns <code>YES</code>,
otherwise it returns <code>NO</code>. <br /> The
default is for a scanner to <em>not</em> be case
sensitive.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-charactersToBeSkipped">charactersToBeSkipped </a></h3>
- (<a rel="gsdoc" href="NSCharacterSet.html#class$NSCharacterSet">NSCharacterSet</a>*) <b>charactersToBeSkipped</b>;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Returns a set of characters containing those
characters that the scanner ignores when
starting any scan operation. Once a character not
in this set has been encountered during an operation,
skipping is finished, and any further characters
from this set that are found are scanned normally.
<br /> The default for this is the
whitespaceAndNewlineCharacterSet.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-initWithString$">initWithString: </a></h3>
- (id) <b>initWithString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)aString;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Initialises the scanner to scan
<var>aString</var>. The GNUstep implementation may
make an internal copy of the original string - so it
is not safe to assume that if you modify a mutable
string that you initialised a scanner with, the
changes will be visible to the scanner. <br />
Returns the scanner object.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-isAtEnd">isAtEnd </a></h3>
- (BOOL) <b>isAtEnd</b>;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Returns <code>YES</code> if no more characters
remain to be scanned. <br /> Returns
<code>YES</code> if all characters remaining to be
scanned are to be skipped. <br /> Returns
<code>NO</code> if there are characters left to
scan.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-locale">locale </a></h3>
- (<a rel="gsdoc" href="NSDictionary.html#class$NSDictionary">NSDictionary</a>*) <b>locale</b>;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Returns the locale set for the scanner, or
<code>nil</code> if no locale has been set. A
scanner uses it's locale to alter the way it
handles scanning - it uses the NSDecimalSeparator
value for scanning numbers.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanCharactersFromSet$intoString$">scanCharactersFromSet: intoString: </a></h3>
- (BOOL) <b>scanCharactersFromSet:</b> (<a rel="gsdoc" href="NSCharacterSet.html#class$NSCharacterSet">NSCharacterSet</a>*)aSet<b> intoString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>**)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans
any characters from <var>aSet</var>, terminating when a
character not in the set is found. <br /> Returns
<code>YES</code> if any character is scanned,
<code>NO</code> otherwise. <br /> If
<var>value</var> is not null, any character scanned
are stored in a string returned in this location.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanDecimal$">scanDecimal: </a></h3>
- (BOOL) <b>scanDecimal:</b> (NSDecimal*)value;<br />
<div class="availability">
<b>Availability:</b> MacOS-X 10.0.0</div>
<br />
<div class="desc">
Not implemented.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanDouble$">scanDouble: </a></h3>
- (BOOL) <b>scanDouble:</b> (double*)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans a
<strong>double</strong> <var>value</var>, placing
it in <em>doubleValue</em> if that is not null. Returns
<code>YES</code> if anything is scanned,
<code>NO</code> otherwise. <br /> On overflow,
HUGE_VAL or - HUGE_VAL is put into
<em>doubleValue</em> <br /> On underflow, 0.0 is put
into <em>doubleValue</em> <br /> Scans past any excess
digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanFloat$">scanFloat: </a></h3>
- (BOOL) <b>scanFloat:</b> (float*)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans a
<strong>float</strong> <var>value</var>, placing
it in <em>floatValue</em> if that is not null. Returns
<code>YES</code> if anything is scanned,
<code>NO</code> otherwise. <br /> On overflow,
HUGE_VAL or - HUGE_VAL is put into
<em>floatValue</em> <br /> On underflow, 0.0 is put
into <em>floatValue</em> <br /> Scans past any excess
digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanHexDouble$">scanHexDouble: </a></h3>
- (BOOL) <b>scanHexDouble:</b> (double*)result;<br />
<div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
<div class="desc">
Not implemented
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanHexFloat$">scanHexFloat: </a></h3>
- (BOOL) <b>scanHexFloat:</b> (float*)result;<br />
<div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
<div class="desc">
Not implemented
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanHexInt$">scanHexInt: </a></h3>
- (BOOL) <b>scanHexInt:</b> (unsigned int*)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans a
hexadecimal integer <var>value</var>
(optionally prefixed by "0x" or "0X"), placing
it in <em>intValue</em> if that is not null. <br />
Returns <code>YES</code> if anything is scanned,
<code>NO</code> otherwise. <br /> On overflow,
INT_MAX or INT_MIN is put into <em>intValue</em>
<br /> Scans past any excess digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanHexLongLong$">scanHexLongLong: </a></h3>
- (BOOL) <b>scanHexLongLong:</b> (unsigned long long*)value;<br />
<div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans a
hexadecimal <strong>long</strong>
<strong>long</strong> <var>value</var> (optionally
prefixed by "0x" or "0X"), placing it in
<em>longLongValue</em> if that is not null. <br />
Returns <code>YES</code> if anything is scanned,
<code>NO</code> otherwise. <br /> On overflow,
ULLONG_MAX or ULLONG_MAX is put into
<em>longLongValue</em> <br /> Scans past any excess
digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanInt$">scanInt: </a></h3>
- (BOOL) <b>scanInt:</b> (int*)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans a
integer <var>value</var>, placing it in
<em>intValue</em> if that is not null. <br /> Returns
<code>YES</code> if anything is scanned,
<code>NO</code> otherwise. <br /> On overflow,
INT_MAX or INT_MIN is put into <em>intValue</em>
<br /> Scans past any excess digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanInteger$">scanInteger: </a></h3>
- (BOOL) <b>scanInteger:</b> (<a rel="gsdoc" href="TypesAndConstants.html#type$NSInteger">NSInteger</a>*)value;<br />
<div class="availability">
<b>Availability:</b> MacOS-X 10.5.0</div>
<br />
<div class="desc">
Not implemented
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanLocation">scanLocation </a></h3>
- (<a rel="gsdoc" href="TypesAndConstants.html#type$NSUInteger">NSUInteger</a>) <b>scanLocation</b>;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Returns the current position that the scanner has
reached in scanning the string. This is the
position at which the next scan operation will
begin.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanLongLong$">scanLongLong: </a></h3>
- (BOOL) <b>scanLongLong:</b> (long long*)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans a
<strong>long</strong> decimal integer
<var>value</var> placing it in <em>longLongValue</em>
if that is not null. <br /> Returns <code>YES</code> if
anything is scanned, <code>NO</code> otherwise.
<br /> On overflow, LLONG_MAX or LLONG_MIN is put
into <em>longLongValue</em> <br /> Scans past any
excess digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanRadixUnsignedInt$">scanRadixUnsignedInt: </a></h3>
- (BOOL) <b>scanRadixUnsignedInt:</b> (unsigned int*)value;<br />
<div class="availability">
<b>Availability:</b> Not in OpenStep/MacOS-X</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans an
<strong>unsigned</strong> integer placing it in
<em><var>value</var></em> if that is not null. If the
number begins with "0x" or "0X" it is treated as
hexadecimal, otherwise if the number begins
with "0" it is treated as octal, otherwise the number
is treated as decimal. <br /> Returns <code>YES</code>
if anything is scanned, <code>NO</code> otherwise.
<br /> On overflow, UINT_MAX is put into
<em><var>value</var></em> <br /> Scans past any excess
digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanRadixUnsignedLongLong$">scanRadixUnsignedLongLong: </a></h3>
- (BOOL) <b>scanRadixUnsignedLongLong:</b> (unsigned long long*)value;<br />
<div class="availability">
<b>Availability:</b> Not in OpenStep/MacOS-X</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans an
<strong>unsigned</strong> <strong>long</strong>
<strong>long</strong> integer placing it in
<em><var>value</var></em> if that is not null. If the
number begins with "0x" or "0X" it is treated as
hexadecimal, otherwise if the number begins
with "0" it is treated as octal, otherwise the number
is treated as decimal. <br /> Returns <code>YES</code>
if anything is scanned, <code>NO</code> otherwise.
<br /> On overflow, ULLONG_MAX is put into
<em><var>value</var></em> <br /> Scans past any excess
digits
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanString$intoString$">scanString: intoString: </a></h3>
- (BOOL) <b>scanString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)string<b> intoString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>**)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans
for <var>string</var> and places the characters found
in <var>value</var> if that is not null. <br /> Returns
<code>YES</code> if anything is scanned,
<code>NO</code> otherwise.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanUpToCharactersFromSet$intoString$">scanUpToCharactersFromSet: intoString: </a></h3>
- (BOOL) <b>scanUpToCharactersFromSet:</b> (<a rel="gsdoc" href="NSCharacterSet.html#class$NSCharacterSet">NSCharacterSet</a>*)aSet<b> intoString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>**)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
After initial skipping (if any), this method scans
characters until it finds one in <em>set</em>.
The scanned characters are placed in
<em>stringValue</em> if that is not null. <br />
Returns <code>YES</code> if anything is scanned,
<code>NO</code> otherwise.
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-scanUpToString$intoString$">scanUpToString: intoString: </a></h3>
- (BOOL) <b>scanUpToString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*)string<b> intoString:</b> (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>**)value;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
</p>
<p>
After initial skipping (if any), this method scans
characters until it finds <var>string</var>.
The scanned characters are placed in <var>value</var>
if that is not null. If <var>string</var> is not
found, all the characters up to the end of the
scanned <var>string</var> will be returned.
</p>
<p>
Returns <code>YES</code> if anything is scanned,
<code>NO</code> otherwise. <br />
</p>
<p>
NB. If the current scanner location points to a copy
of <var>string</var>, or points to skippable
characters immediately before a copy of
<var>string</var> then this method returns
<code>NO</code> since it finds no characters to
store in <var>value</var> before it finds
<var>string</var>.
</p>
<p>
</p>
<p>
To count the occurrences of <var>string</var>, this
should be used in conjunction with the
<a rel="gsdoc" href="#method$NSScanner-scanString$intoString$">
-scanString:intoString:
</a>
method.
</p>
<p>
<pre>
NSString *ch = @"[";
unsigned total = 0;
[scanner scanUpToString: ch intoString: NULL];
while ([scanner scanString: ch intoString: NULL] == YES)
{
total++;
[scanner scanUpToString: ch intoString: NULL];
}
NSLog(@"total %d", total);
</pre>
</div>
<hr width="25%" align="left" />
</div>
<div class="method">
<h3><a name="method$NSScanner-setCaseSensitive$">setCaseSensitive: </a></h3>
- (void) <b>setCaseSensitive:</b> (BOOL)flag;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Sets the case sensitivity of the scanner. <br /> Case
sensitivity governs matching of characters
being scanned, but does not effect the characters in
the set to be skipped. <br /> The default is for a
scanner to <em>not</em> be case sensitive.
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<div class="method">
<h3><a name="method$NSScanner-setCharactersToBeSkipped$">setCharactersToBeSkipped: </a></h3>
- (void) <b>setCharactersToBeSkipped:</b> (<a rel="gsdoc" href="NSCharacterSet.html#class$NSCharacterSet">NSCharacterSet</a>*)aSet;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Sets the set of characters that the scanner will skip
over at the start of each scanning operation to be
<em>skipSet</em>. Skipping is performed by literal
character matching - the case sensitivity of the
scanner does not effect it. If this is set to
<code>nil</code>, no skipping is done. <br /> The
default for this is the
whitespaceAndNewlineCharacterSet.
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<div class="method">
<h3><a name="method$NSScanner-setLocale$">setLocale: </a></h3>
- (void) <b>setLocale:</b> (<a rel="gsdoc" href="NSDictionary.html#class$NSDictionary">NSDictionary</a>*)localeDictionary;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
This method sets the locale used by the scanner to
<em>aLocale</em>. The locale may be set to
<code>nil</code>.
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<div class="method">
<h3><a name="method$NSScanner-setScanLocation$">setScanLocation: </a></h3>
- (void) <b>setScanLocation:</b> (<a rel="gsdoc" href="TypesAndConstants.html#type$NSUInteger">NSUInteger</a>)anIndex;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
This method sets the location in the scanned string at
which the next scan operation begins. Raises an
NSRangeException if index is beyond the
end of the scanned string.
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<div class="method">
<h3><a name="method$NSScanner-string">string </a></h3>
- (<a rel="gsdoc" href="NSString.html#class$NSString">NSString</a>*) <b>string</b>;<br />
<div class="availability">
<b>Availability:</b> OpenStep</div>
<br />
<div class="desc">
Returns the string being scanned.
</div>
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