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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> &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> &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> &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> &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">// <<</font>
00235 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u17">URightShift</a>, <font class="comment">// >></font>
00236 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u18">SLeftShift</a>, <font class="comment">// <-</font>
00237 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u19">SRightShift</a>, <font class="comment">// -></font>
00238 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u20">Inferior</a>, <font class="comment">// <</font>
00239 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u21">InferiorEqual</a>, <font class="comment">// <=</font>
00240 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u22">Superior</a>, <font class="comment">// ></font>
00241 <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u65u23">SuperiorEqual</a>, <font class="comment">// >=</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">// &</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">// &&</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> &<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> &<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> &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> &result, <a class="code" href="classNLMISC_1_1CEvalNumExpr.html#u64">TToken</a> &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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