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<head><title>NNParser -- a parser that accepts (and returns) a natural number, one character at a time</title>
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<div><a href="index.html" title="a framework for building parsers">Parsing</a> > <a href="___Parser.html" title="the class of all parsers">Parser</a> > <a href="___N__N__Parser.html" title="a parser that accepts (and returns) a natural number, one character at a time">NNParser</a></div>
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<div><h1>NNParser -- a parser that accepts (and returns) a natural number, one character at a time</h1>
<div class="single"><h2>Description</h2>
<div><table class="examples"><tr><td><pre>i1 : NNParser "1"
o1 = {*Function[/builddir/build/BUILD/Macaulay2-1.3.1-r10737/Macaulay2/packages/Parsing.m2:150:39-150:101]*}
o1 : Parser</pre>
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<tr><td><pre>i2 : oo null
o2 = 1</pre>
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<tr><td><pre>i3 : ooo "2"
o3 = {*Function[/builddir/build/BUILD/Macaulay2-1.3.1-r10737/Macaulay2/packages/Parsing.m2:150:39-150:101]*}
o3 : Parser</pre>
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<tr><td><pre>i4 : oo null
o4 = 12</pre>
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<tr><td><pre>i5 : ooo "3"
o5 = {*Function[/builddir/build/BUILD/Macaulay2-1.3.1-r10737/Macaulay2/packages/Parsing.m2:150:39-150:101]*}
o5 : Parser</pre>
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<tr><td><pre>i6 : oo null
o6 = 123</pre>
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<tr><td><pre>i7 : (NNParser : charAnalyzer) "123456789123456789123456789"
o7 = 123456789123456789123456789</pre>
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<tr><td><pre>i8 : class oo
o8 = ZZ
o8 : Ring</pre>
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<div class="single"><h2>See also</h2>
<ul><li><span><a href="_char__Analyzer.html" title="a lexical analyzer that provides characters from a string one at a time">charAnalyzer</a> -- a lexical analyzer that provides characters from a string one at a time</span></li>
<li><span><a href="___Parser_sp_co_sp__Analyzer.html" title="combine a parser with a lexical analyzer to make a complete system">Parser : Analyzer</a> -- combine a parser with a lexical analyzer to make a complete system</span></li>
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<div class="waystouse"><div class="single"><h2>Code</h2>
<pre>../Parsing.m2:151:30-151:58: --source code:
new Parser from (c -> if digit#?c then f digit#c)
| symbol class value location of symbol
| ------ ----- ----- ------------------
| f : FunctionClosure -- {*Function[../Parsing.m2:150:17-150:101]*} ../Parsing.m2:150:11-150:11</pre>
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