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80 lines
2.8 KiB
HTML
80 lines
2.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<HTML>
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<HEAD>
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<META NAME="generator" CONTENT="http://txt2tags.sf.net">
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<TITLE> Numerals</TITLE>
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</HEAD><BODY BGCOLOR="white" TEXT="black">
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<P ALIGN="center"><CENTER><H1> Numerals</H1>
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<FONT SIZE="4">
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<I>Last update: 2006-06-26 13:24:17 CEST</I><BR>
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</FONT></CENTER>
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<P></P>
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<HR NOSHADE SIZE=1>
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<P></P>
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<P></P>
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<HR NOSHADE SIZE=1>
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<P></P>
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<P>
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Produced by
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gfdoc - a rudimentary GF document generator.
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(c) Aarne Ranta (<A HREF="mailto:aarne@cs.chalmers.se">aarne@cs.chalmers.se</A>) 2002 under GNU GPL.
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</P>
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<P>
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This grammar defines numerals from 1 to 999999.
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The implementations are adapted from the
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<A HREF="http://www.cs.chalmers.se/~aarne/GF/examples/numerals/">numerals library</A>
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which defines numerals for 88 languages.
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The resource grammar implementations add to this inflection (if needed)
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and ordinal numbers.
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</P>
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<P>
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<B>Note</B> 1. Number 1 as defined
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in the category <CODE>Numeral</CODE> here should not be used in the formation of
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noun phrases, and should therefore be removed. Instead, one should use
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<A HREF="Structural.html">Structural</A><CODE>.one_Quant</CODE>. This makes the grammar simpler
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because we can assume that numbers form plural noun phrases.
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</P>
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<P>
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<B>Note</B> 2. The implementations introduce spaces between
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parts of a numeral, which is often incorrect - more work on
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(un)lexing is needed to solve this problem.
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</P>
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<PRE>
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abstract Numeral = Cat ** {
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cat
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Digit ; -- 2..9
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Sub10 ; -- 1..9
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Sub100 ; -- 1..99
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Sub1000 ; -- 1..999
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Sub1000000 ; -- 1..999999
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fun
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num : Sub1000000 -> Numeral ;
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n2, n3, n4, n5, n6, n7, n8, n9 : Digit ;
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pot01 : Sub10 ; -- 1
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pot0 : Digit -> Sub10 ; -- d * 1
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pot110 : Sub100 ; -- 10
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pot111 : Sub100 ; -- 11
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pot1to19 : Digit -> Sub100 ; -- 10 + d
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pot0as1 : Sub10 -> Sub100 ; -- coercion of 1..9
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pot1 : Digit -> Sub100 ; -- d * 10
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pot1plus : Digit -> Sub10 -> Sub100 ; -- d * 10 + n
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pot1as2 : Sub100 -> Sub1000 ; -- coercion of 1..99
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pot2 : Sub10 -> Sub1000 ; -- m * 100
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pot2plus : Sub10 -> Sub100 -> Sub1000 ; -- m * 100 + n
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pot2as3 : Sub1000 -> Sub1000000 ; -- coercion of 1..999
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pot3 : Sub1000 -> Sub1000000 ; -- m * 1000
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pot3plus : Sub1000 -> Sub1000 -> Sub1000000 ; -- m * 1000 + n
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}
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</PRE>
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<P></P>
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<!-- html code generated by txt2tags 2.3 (http://txt2tags.sf.net) -->
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<!-- cmdline: txt2tags -thtml -\-toc abstract/Numeral.txt -->
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</BODY></HTML>
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