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<hr><h1>eval_num_expr.h</h1><a href="eval__num__expr_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 
00007 <font class="comment">/* Copyright, 2000, 2001 Nevrax Ltd.</font>
00008 <font class="comment"> *</font>
00009 <font class="comment"> * This file is part of NEVRAX NeL Network Services.</font>
00010 <font class="comment"> * NEVRAX NeL Network Services is free software; you can redistribute it and/or modify</font>
00011 <font class="comment"> * it under the terms of the GNU General Public License as published by</font>
00012 <font class="comment"> * the Free Software Foundation; either version 2, or (at your option)</font>
00013 <font class="comment"> * any later version.</font>
00014 <font class="comment"></font>
00015 <font class="comment"> * NEVRAX NeL Network Services is distributed in the hope that it will be useful, but</font>
00016 <font class="comment"> * WITHOUT ANY WARRANTY; without even the implied warranty of</font>
00017 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>
00018 <font class="comment"> * General Public License for more details.</font>
00019 <font class="comment"></font>
00020 <font class="comment"> * You should have received a copy of the GNU General Public License</font>
00021 <font class="comment"> * along with NEVRAX NeL Network Services; see the file COPYING. If not, write to the</font>
00022 <font class="comment"> * Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,</font>
00023 <font class="comment"> * MA 02111-1307, USA.</font>
00024 <font class="comment"> */</font>
00025 
00026 <font class="preprocessor">#ifndef NL_EVAL_NUM_EXPR_H</font>
00027 <font class="preprocessor"></font><font class="preprocessor">#define NL_EVAL_NUM_EXPR_H</font>
00028 <font class="preprocessor"></font>
00029 <font class="preprocessor">#include "<a class="code" href="types__nl_8h.html">nel/misc/types_nl.h</a>"</font>
00030 
00031 <font class="keyword">namespace </font>NLMISC
00032 {
00033 
<a name="l00037"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html">00037</a> <font class="keyword">class </font>CEvalNumExpr
00038 {
00039 <font class="keyword">public</font>:
<a name="l00040"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#a0">00040</a>         <font class="keyword">virtual</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#a0">~CEvalNumExpr</a>() {}
<a name="l00042"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">00042</a>         <font class="keyword">enum</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a>
00043         {
00044                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s0">NoError</a>,                        <font class="comment">// No error</font>
00045                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s1">UnkownValue</a>,            <font class="comment">// Unkown value has been parsed</font>
00046                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s2">ValueError</a>,                     <font class="comment">// Error during user defined value evaluation</font>
00047                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s3">UnkownFunction</a>,         <font class="comment">// Unkown function has been parsed</font>
00048                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s4">FunctionError</a>,          <font class="comment">// Error during user defined function evaluation</font>
00049                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s5">NumberSyntaxError</a>,      <font class="comment">// Syntax error in a number expression</font>
00050                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s6">UnkownOperator</a>,         <font class="comment">// Unkown operator</font>
00051                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s7">MustBeOpen</a>,                     <font class="comment">// Should be a open parentesis</font>
00052                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s8">MustBeClose</a>,            <font class="comment">// Should be a close parentesis</font>
00053                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s9">MustBeComa</a>,                     <font class="comment">// Should be a coma character</font>
00054                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s10">MustBeExpression</a>,       <font class="comment">// Should be an expression</font>
00055                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s11">NotUnaryOperator</a>,       <font class="comment">// Should not be an unary operator</font>
00056                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s12">MustBeEnd</a>,                      <font class="comment">// Should be the end</font>
00057                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s13">MustBeDoubleQuote</a>,      <font class="comment">// Should be a double quote</font>
00058                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s14">ReturnValueCount</a>
00059         };
00060 
00167         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#a1">evalExpression</a> (<font class="keyword">const</font> <font class="keywordtype">char</font> *expression, <font class="keywordtype">double</font> &amp;result, <font class="keywordtype">int</font> *errorIndex, uint32 userData = 0);
00168 
00170         <font class="keyword">const</font> <font class="keywordtype">char</font>* <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#a2">getErrorString</a> (<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a> state) <font class="keyword">const</font>;
00171 
00172 <font class="keyword">protected</font>:
00173 
00175 
00187         <font class="keyword">virtual</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#b0">evalValue</a> (<font class="keyword">const</font> <font class="keywordtype">char</font> *<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>, <font class="keywordtype">double</font> &amp;result, uint32 userData);
00188 
00203         <font class="keyword">virtual</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#b1">evalFunction</a> (<font class="keyword">const</font> <font class="keywordtype">char</font> *funcName, <font class="keywordtype">double</font> arg0, <font class="keywordtype">double</font> &amp;result);
00204         <font class="keyword">virtual</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#b1">evalFunction</a> (<font class="keyword">const</font> <font class="keywordtype">char</font> *funcName, <font class="keywordtype">double</font> arg0, <font class="keywordtype">double</font> <a class="code" href="driver__opengl__extension__def_8h.html#a401">arg1</a>, <font class="keywordtype">double</font> &amp;result);
00205 
00206 <font class="keyword">private</font>:
00207 
00209 
<a name="l00211"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64">00211</a>         <font class="keyword">enum</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64">TToken</a>
00212         {
00213                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u0">Number</a>,         <font class="comment">// This is a number</font>
00214                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u1">Function1</a>,      <font class="comment">// This is a function with one argu</font>
00215                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u2">Function2</a>,      <font class="comment">// This is a function with two argu</font>
00216                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u3">String</a>,         <font class="comment">// This is a user string</font>
00217                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u4">Operator</a>,       <font class="comment">// This is an operator</font>
00218                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u5">Open</a>,           <font class="comment">// (</font>
00219                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u6">Close</a>,          <font class="comment">// )</font>
00220                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u7">Coma</a>,           <font class="comment">// ,</font>
00221                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64u8">End</a>,            <font class="comment">// End of string</font>
00222         };
00223 
00224         <font class="comment">// Operators</font>
<a name="l00225"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65">00225</a>         <font class="keyword">enum</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65">TOperator</a>
00226         {
00227                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u9">Not</a> = 0,                <font class="comment">// !</font>
00228                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u10">Tilde</a>,                  <font class="comment">// ~</font>
00229                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u11">Mul</a>,                    <font class="comment">// *</font>
00230                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u12">Div</a>,                    <font class="comment">// /</font>
00231                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u13">Remainder</a>,              <font class="comment">// %</font>
00232                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u14">Plus</a>,                   <font class="comment">// +</font>
00233                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u15">Minus</a>,                  <font class="comment">// -</font>
00234                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u16">ULeftShift</a>,             <font class="comment">// &lt;&lt;</font>
00235                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u17">URightShift</a>,    <font class="comment">// &gt;&gt;</font>
00236                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u18">SLeftShift</a>,             <font class="comment">// &lt;-</font>
00237                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u19">SRightShift</a>,    <font class="comment">// -&gt;</font>
00238                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u20">Inferior</a>,               <font class="comment">// &lt;</font>
00239                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u21">InferiorEqual</a>,  <font class="comment">// &lt;=</font>
00240                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u22">Superior</a>,               <font class="comment">// &gt;</font>
00241                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u23">SuperiorEqual</a>,  <font class="comment">// &gt;=</font>
00242                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u24">Equal</a>,                  <font class="comment">// ==</font>
00243                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u25">NotEqual</a>,               <font class="comment">// !=</font>
00244                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u26">And</a>,                    <font class="comment">// &amp;</font>
00245                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u27">Or</a>,                             <font class="comment">// |</font>
00246                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u28">Xor</a>,                    <font class="comment">// ^</font>
00247                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u29">LogicalAnd</a>,             <font class="comment">// &amp;&amp;</font>
00248                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u30">LogicalOr</a>,              <font class="comment">// ||</font>
00249                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u31">LogicalXor</a>,             <font class="comment">// ^^</font>
00250                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u32">OperatorCount</a>,  <font class="comment">// </font>
00251                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u33">NotOperator</a>, <font class="comment">// This is not an operator</font>
00252                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u34">ExtOperator</a>, <font class="comment">// This is a 2 charcters operator</font>
00253         };
00254 
00255         <font class="comment">// Functions</font>
<a name="l00256"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66">00256</a>         <font class="keyword">enum</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66">TReservedWord</a>
00257         {
00258                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u35">Abs</a> = 0,
00259                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u36">Acos</a>,
00260                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u37">Asin</a>,
00261                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u38">Atan</a>,
00262                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u39">Atan2</a>,
00263                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u40">Ceil</a>,
00264                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u41">Cos</a>,
00265                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u42">Cosh</a>,
00266                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u43">Exp</a>,
00267                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u44">Exponent</a>,
00268                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u45">Floor</a>,
00269                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u46">Int</a>,
00270                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u47">Log</a>,
00271                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u48">Log10</a>,
00272                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u49">Mantissa</a>,
00273                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u50">Max</a>,
00274                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u51">Min</a>,
00275                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u52">Pow</a>,
00276                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u53">Rand</a>,
00277                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u54">Round</a>,
00278                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u55">Sin</a>,
00279                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u56">Sinh</a>,
00280                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u57">Sq</a>,
00281                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u58">Sqrt</a>,
00282                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u59">Tan</a>,
00283                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u60">Tanh</a>,
00284                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u61">ReservedWordCount</a>,
00285         };
00286 
00287         <font class="comment">// Some constant</font>
00288         <font class="keyword">enum</font> 
00289         {
00290                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u67u62">InternalStringLen</a> = 32,
00291                 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u67u63">InternalOperator</a> = 4,
00292         };
00293 
<a name="l00295"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o0">00295</a>         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a>    <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o0">_State</a>;         <font class="comment">// Current state</font>
<a name="l00296"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o1">00296</a>         <font class="keyword">const</font> <font class="keywordtype">char</font>              *<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o1">_ExprPtr</a>;      <font class="comment">// Current pointer on the expression</font>
00297 
00299         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#c0">readDecimal</a> (<font class="keywordtype">double</font> &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>);
00300 
00302         <font class="keywordtype">void</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#c1">readIntegerNumberDecimal</a> (<font class="keywordtype">double</font> &amp;<a class="code" href="driver__opengl__extension__def_8h.html#a415">value</a>);
00303 
00305 
00307         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a>    <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#c2">getNextToken</a> (<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64">TToken</a> &amp;token);
00308 
00310         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15">TReturnState</a>    <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#a1">evalExpression</a> (<font class="keywordtype">double</font> &amp;result, <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64">TToken</a> &amp;nextToken, uint32 userData);
00311 
<a name="l00313"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o2">00313</a>         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66">TReservedWord</a>   <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o2">_ReservedWordFound</a>;
00314 
<a name="l00316"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o3">00316</a>         <font class="keywordtype">char</font>                    <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o3">_InternalString</a>[<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u67u62">InternalStringLen</a>];
<a name="l00317"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o4">00317</a>         std::string             <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o4">_InternalStlString</a>;
<a name="l00318"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o5">00318</a>         <font class="keyword">const</font> <font class="keywordtype">char</font>              *<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o5">_InternalStringPtr</a>;
00319 
<a name="l00321"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o6">00321</a>         <font class="keywordtype">double</font>                  <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o6">_Value</a>;
00322 
<a name="l00324"></a><a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o7">00324</a>         <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65">TOperator</a>               <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#o7">_Op</a>;
00325 
00327 
00329         <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64">TToken</a>             <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#r0">_ReservedWordToken</a>[<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u61">ReservedWordCount</a>];
00330         <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>               *<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#r1">_ReservedWord</a>[<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u66u61">ReservedWordCount</a>];
00331         <font class="keyword">static</font> <font class="keyword">const</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65">TOperator</a>  <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#r2">_OperatorArray</a>[128];
00332         <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">bool</font>               <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#r3">_StringChar</a>[128];
00333         <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">char</font>               *<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#r4">_ErrorString</a>[<a class="code" href="classNLMISC_1_1CEvalNumExpr.html#s15s14">ReturnValueCount</a>];
00334         <font class="keyword">static</font> <font class="keyword">const</font> <font class="keywordtype">int</font>                <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#r5">_OperatorPrecedence</a>[];
00335 
00336 <font class="keyword">public</font>:
00337 
00338         <font class="keywordtype">bool</font> <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#a3">internalCheck</a> ();
00339 };
00340 
00341 }
00342 
00343 <font class="preprocessor">#endif // NL_EVAL_NUM_EXPR_H</font>
</pre></div>

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