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dpavlin |
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/* |
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* HT Editor |
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* stdfuncs.cc |
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* |
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* Copyright (C) 2003 Stefan Weyergraf |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include "tools/except.h" |
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#include "debug/stdfuncs.h" |
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#define declareIntOperator1(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_INTEGER;}\ |
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virtual SInt64 * evalInteger() const\ |
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{\ |
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sint64 arg0 = ((Function *)mArgs[0])->evalInteger()->value;\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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#define declareIntOperator2(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_INTEGER;}\ |
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virtual SInt64 * evalInteger() const\ |
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{\ |
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sint64 arg0 = ((Function *)mArgs[0])->evalInteger()->value;\ |
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sint64 arg1 = ((Function *)mArgs[1])->evalInteger()->value;\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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#define declareFloatOperator2(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_FLOAT;}\ |
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virtual Float * evalFloat() const\ |
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{\ |
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double arg0 = ((Function *)mArgs[0])->evalFloat()->value;\ |
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double arg1 = ((Function *)mArgs[1])->evalFloat()->value;\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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#define declareFloatOperator1(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_FLOAT;}\ |
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virtual Float * evalFloat() const\ |
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{\ |
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double arg0 = ((Function *)mArgs[0])->evalFloat()->value;\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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#define declareIntFuncFloatFloat(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_INTEGER;}\ |
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virtual SInt64 * evalInteger() const\ |
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{\ |
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double arg0 = ((Function *)mArgs[0])->evalFloat()->value;\ |
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double arg1 = ((Function *)mArgs[1])->evalFloat()->value;\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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#define declareStrOperator2(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_STRING;}\ |
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virtual String * evalString() const\ |
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{\ |
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String *arg0 = ((Function *)mArgs[0])->evalString();\ |
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String *arg1 = ((Function *)mArgs[1])->evalString();\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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#define declareIntFuncStrStr(NAME, CODE...) \ |
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class NAME: public PFunction {\ |
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public:\ |
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virtual EvalType getReturnType() const { return ET_INTEGER;}\ |
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virtual SInt64 * evalInteger() const\ |
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{\ |
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String *arg0 = ((Function *)mArgs[0])->evalString();\ |
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String *arg1 = ((Function *)mArgs[1])->evalString();\ |
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CODE\ |
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}\ |
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};\ |
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static Function *create##NAME() { return new NAME(); } |
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/**/ |
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/* integer functions */ |
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declareIntOperator2(MulFuncInt, return new SInt64(arg0 * arg1); ); |
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declareIntOperator2(DivFuncInt, |
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if (!arg1) throw MsgException("division by zero"); |
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return new SInt64(arg0 / arg1); |
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); |
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declareIntOperator2(RemFuncInt, |
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if (!arg1) throw MsgException("division by zero"); |
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return new SInt64(arg0 % arg1); |
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); |
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declareIntOperator2(AddFuncInt, return new SInt64(arg0 + arg1); ); |
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declareIntOperator2(SubFuncInt, return new SInt64(arg0 - arg1); ); |
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declareIntOperator2(AndFuncInt, return new SInt64(arg0 & arg1); ); |
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declareIntOperator2(OrFuncInt, return new SInt64(arg0 | arg1); ); |
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declareIntOperator2(XorFuncInt, return new SInt64(arg0 ^ arg1); ); |
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declareIntOperator2(ShlFuncInt, return new SInt64((uint64)arg0 << arg1); ); |
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declareIntOperator2(ShrFuncInt, return new SInt64((uint64)arg0 >> arg1); ); |
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declareIntOperator2(PowFuncInt, |
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sint64 b = arg0; |
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sint64 e = arg1; |
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sint64 r = 1; |
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int ln2_e = -1; |
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uint64 uarg1 = arg1; |
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while (uarg1) { |
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uarg1 >>= 1; |
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ln2_e ++; |
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} |
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uint64 mask = 1L << ln2_e; |
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while (1) { |
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if (e & mask) r *= b; |
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mask >>= 1; |
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if (!mask) break; |
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r = r*r; |
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} |
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return new SInt64(r); |
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); |
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declareIntOperator2(MaxFuncInt, return new SInt64((arg1>arg0) ? arg1 : arg0); ); |
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declareIntOperator2(MinFuncInt, return new SInt64((arg1<arg0) ? arg1 : arg0); ); |
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declareIntOperator2(LAndFuncInt, return new SInt64(arg0 && arg1); ); |
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declareIntOperator2(LOrFuncInt, return new SInt64(arg0 || arg1); ); |
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declareIntOperator2(LXorFuncInt, return new SInt64((arg0 && !arg1) || (!arg0 && arg1)); ); |
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declareIntOperator2(LTFuncInt, return new SInt64(arg0 < arg1); ); |
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declareIntOperator2(GTFuncInt, return new SInt64(arg0 > arg1); ); |
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declareIntOperator2(LEFuncInt, return new SInt64(arg0 <= arg1); ); |
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declareIntOperator2(GEFuncInt, return new SInt64(arg0 >= arg1); ); |
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declareIntOperator2(EQFuncInt, return new SInt64(arg0 == arg1); ); |
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declareIntOperator2(NEFuncInt, return new SInt64(arg0 != arg1); ); |
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declareIntOperator2(GcdFuncInt, |
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while (arg1) { |
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sint64 temp = arg1; |
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arg1 = arg0 % arg1; |
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arg0 = temp; |
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} |
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return new SInt64((arg0<0) ? -arg0 : arg0); |
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); |
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declareIntOperator2(BinCoeffFuncInt, |
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// calculate (n k) = n! / (n-k)! / k! |
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uint64 n = arg0; |
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uint64 k = arg1; |
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uint64 r = 1; |
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for (uint64 i = n; i>n-k; i--) { |
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r *= i; |
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} |
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for (uint64 i = 2; i<=k; i++) { |
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r /= i; |
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} |
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return new SInt64(r); |
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); |
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declareIntOperator1(FacFuncInt, |
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if (arg0 < 0) throw MsgException("invalid argument (must be >= 0)"); |
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// 0! = 1! |
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if (arg0 == 0) arg0 = 1; |
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uint64 r = arg0; |
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while (arg0-- > 2) { |
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r *= arg0; |
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} |
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return new SInt64(r); |
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); |
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declareIntOperator1(NegateFuncInt, return new SInt64(-arg0); ); |
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/* float functions */ |
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declareFloatOperator2(MulFuncFloat, return new Float(arg0 * arg1); ); |
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declareFloatOperator2(DivFuncFloat, |
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if (!arg1) throw MsgException("division by zero"); |
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return new Float(arg0 / arg1); |
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); |
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declareFloatOperator2(AddFuncFloat, return new Float(arg0 + arg1); ); |
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declareFloatOperator2(SubFuncFloat, return new Float(arg0 - arg1); ); |
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declareFloatOperator2(PowFuncFloat, return new Float(pow(arg0, arg1)); ); |
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declareFloatOperator2(MaxFuncFloat, return new Float((arg1>arg0) ? arg1 : arg0); ); |
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declareFloatOperator2(MinFuncFloat, return new Float((arg1<arg0) ? arg1 : arg0); ); |
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declareFloatOperator1(SqrtFuncFloat, return new Float(sqrt(arg0)); ); |
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declareFloatOperator1(ExpFuncFloat, return new Float(exp(arg0)); ); |
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declareFloatOperator1(LogFuncFloat, return new Float(log(arg0)); ); |
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declareFloatOperator1(CeilFuncFloat, return new Float(ceil(arg0)); ); |
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declareFloatOperator1(FloorFuncFloat, return new Float(floor(arg0)); ); |
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declareFloatOperator1(SinFuncFloat, return new Float(sin(arg0)); ); |
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declareFloatOperator1(CosFuncFloat, return new Float(cos(arg0)); ); |
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declareFloatOperator1(TanFuncFloat, return new Float(tan(arg0)); ); |
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declareFloatOperator1(ASinFuncFloat, return new Float(asin(arg0)); ); |
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declareFloatOperator1(ACosFuncFloat, return new Float(acos(arg0)); ); |
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declareFloatOperator1(ATanFuncFloat, return new Float(atan(arg0)); ); |
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declareFloatOperator1(NegateFuncFloat, return new Float(-arg0); ); |
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declareIntFuncFloatFloat(LTFuncFloat, return new SInt64(arg0 < arg1); ); |
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declareIntFuncFloatFloat(GTFuncFloat, return new SInt64(arg0 > arg1); ); |
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declareIntFuncFloatFloat(LEFuncFloat, return new SInt64(arg0 <= arg1); ); |
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declareIntFuncFloatFloat(GEFuncFloat, return new SInt64(arg0 >= arg1); ); |
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declareIntFuncFloatFloat(EQFuncFloat, return new SInt64(arg0 == arg1); ); |
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declareIntFuncFloatFloat(NEFuncFloat, return new SInt64(arg0 != arg1); ); |
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/* string functions */ |
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declareStrOperator2(ConcatFuncStr, |
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String *r = new String(arg0); |
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r->append(arg1); |
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return r; |
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); |
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declareIntFuncStrStr(LTFuncStr, return new SInt64(arg0 < arg1); ); |
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declareIntFuncStrStr(GTFuncStr, return new SInt64(arg0 > arg1); ); |
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declareIntFuncStrStr(LEFuncStr, return new SInt64(arg0 <= arg1); ); |
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declareIntFuncStrStr(GEFuncStr, return new SInt64(arg0 >= arg1); ); |
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declareIntFuncStrStr(EQFuncStr, return new SInt64(arg0->compareTo(arg1) == 0); ); |
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declareIntFuncStrStr(NEFuncStr, return new SInt64(arg0->compareTo(arg1) != 0); ); |
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/* special functions */ |
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class MiniIf: public PFunction { |
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public: |
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virtual EvalType getReturnType() const |
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{ |
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if (mArgs.count() != 3) throw MsgException("exactly 3 parameters required"); |
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EvalType arg1t = ((Function *)mArgs[1])->getReturnType(); |
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EvalType arg2t = ((Function *)mArgs[2])->getReturnType(); |
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if ((arg1t == ET_STRING) || (arg2t == ET_STRING)) return ET_STRING; |
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if ((arg1t == ET_FLOAT) || (arg2t == ET_FLOAT)) return ET_FLOAT; |
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return ET_INTEGER; |
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} |
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virtual SInt64 *evalInteger() const |
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{ |
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if (mArgs.count() != 3) throw MsgException("exactly 3 parameters required"); |
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sint64 arg0 = ((Function *)mArgs[0])->evalInteger()->value; |
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return new SInt64(arg0 ? |
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((Function *)mArgs[1])->evalInteger()->value : |
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((Function *)mArgs[2])->evalInteger()->value); |
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} |
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virtual Float *evalFloat() const |
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{ |
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if (mArgs.count() != 3) throw MsgException("exactly 3 parameters required"); |
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sint64 arg0 = ((Function *)mArgs[0])->evalInteger()->value; |
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return new Float(arg0 ? |
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((Function *)mArgs[1])->evalFloat()->value : |
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((Function *)mArgs[2])->evalFloat()->value); |
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} |
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virtual String *evalString() const |
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{ |
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if (mArgs.count() != 3) throw MsgException("exactly 3 parameters required"); |
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sint64 arg0 = ((Function *)mArgs[0])->evalInteger()->value; |
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return new String(arg0 ? |
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((Function *)mArgs[1])->evalString() : |
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((Function *)mArgs[2])->evalString()); |
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} |
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}; |
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static Function *createMiniIf() { return new MiniIf(); } |
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/**/ |
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class TypeOfInt: public PFunction { |
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public: |
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virtual EvalType getReturnType() const { return ET_STRING; } |
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virtual String *evalString() const { return new String("integer"); } |
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}; |
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static Function *createTypeOfInt() { return new TypeOfInt(); } |
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/**/ |
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class TypeOfFloat: public PFunction { |
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public: |
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virtual EvalType getReturnType() const { return ET_STRING; } |
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virtual String *evalString() const { return new String("float"); } |
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}; |
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static Function *createTypeOfFloat() { return new TypeOfFloat(); } |
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/**/ |
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class TypeOfStr: public PFunction { |
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public: |
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virtual EvalType getReturnType() const { return ET_STRING; } |
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virtual String *evalString() const { return new String("string"); } |
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}; |
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static Function *createTypeOfStr() { return new TypeOfStr(); } |
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/**/ |
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FunctionDesc gStdEvalFunctions[] = |
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{ |
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{ "*", 2, {ET_INTEGER, ET_INTEGER}, &createMulFuncInt }, |
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{ "/", 2, {ET_INTEGER, ET_INTEGER}, &createDivFuncInt }, |
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{ "%", 2, {ET_INTEGER, ET_INTEGER}, &createRemFuncInt }, |
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{ "+", 2, {ET_INTEGER, ET_INTEGER}, &createAddFuncInt }, |
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{ "-", 2, {ET_INTEGER, ET_INTEGER}, &createSubFuncInt }, |
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{ "&", 2, {ET_INTEGER, ET_INTEGER}, &createAndFuncInt }, |
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{ "|", 2, {ET_INTEGER, ET_INTEGER}, &createOrFuncInt }, |
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{ "^", 2, {ET_INTEGER, ET_INTEGER}, &createXorFuncInt }, |
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{ "**", 2, {ET_INTEGER, ET_INTEGER}, &createPowFuncInt }, |
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{ "max",2, {ET_INTEGER, ET_INTEGER}, &createMaxFuncInt }, |
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{ "min",2, {ET_INTEGER, ET_INTEGER}, &createMinFuncInt }, |
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{ "<<", 2, {ET_INTEGER, ET_INTEGER}, &createShlFuncInt }, |
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{ ">>", 2, {ET_INTEGER, ET_INTEGER}, &createShrFuncInt }, |
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{ "&&", 2, {ET_INTEGER, ET_INTEGER}, &createLAndFuncInt }, |
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{ "||", 2, {ET_INTEGER, ET_INTEGER}, &createLOrFuncInt }, |
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{ "^^", 2, {ET_INTEGER, ET_INTEGER}, &createLXorFuncInt }, |
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|
|
| 337 |
|
|
{ "<", 2, {ET_INTEGER, ET_INTEGER}, &createLTFuncInt }, |
| 338 |
|
|
{ ">", 2, {ET_INTEGER, ET_INTEGER}, &createGTFuncInt }, |
| 339 |
|
|
{ "<=", 2, {ET_INTEGER, ET_INTEGER}, &createLEFuncInt }, |
| 340 |
|
|
{ ">=", 2, {ET_INTEGER, ET_INTEGER}, &createGEFuncInt }, |
| 341 |
|
|
{ "==", 2, {ET_INTEGER, ET_INTEGER}, &createEQFuncInt }, |
| 342 |
|
|
{ "!=", 2, {ET_INTEGER, ET_INTEGER}, &createNEFuncInt }, |
| 343 |
|
|
{ "gcd",2, {ET_INTEGER, ET_INTEGER}, &createGcdFuncInt }, |
| 344 |
|
|
{ "bincoeff",2, {ET_INTEGER, ET_INTEGER}, &createBinCoeffFuncInt }, |
| 345 |
|
|
{ "-", 1, {ET_INTEGER}, &createNegateFuncInt }, |
| 346 |
|
|
{ "fac",1, {ET_INTEGER}, &createFacFuncInt }, |
| 347 |
|
|
|
| 348 |
|
|
{ "*", 2, {ET_FLOAT, ET_FLOAT}, &createMulFuncFloat }, |
| 349 |
|
|
{ "/", 2, {ET_FLOAT, ET_FLOAT}, &createDivFuncFloat }, |
| 350 |
|
|
{ "+", 2, {ET_FLOAT, ET_FLOAT}, &createAddFuncFloat }, |
| 351 |
|
|
{ "-", 2, {ET_FLOAT, ET_FLOAT}, &createSubFuncFloat }, |
| 352 |
|
|
{ "**", 2, {ET_FLOAT, ET_FLOAT}, &createPowFuncFloat }, |
| 353 |
|
|
{ "max",2, {ET_FLOAT, ET_FLOAT}, &createMaxFuncFloat }, |
| 354 |
|
|
{ "min",2, {ET_FLOAT, ET_FLOAT}, &createMinFuncFloat }, |
| 355 |
|
|
|
| 356 |
|
|
{ "<", 2, {ET_FLOAT, ET_FLOAT}, &createLTFuncFloat }, |
| 357 |
|
|
{ ">", 2, {ET_FLOAT, ET_FLOAT}, &createGTFuncFloat }, |
| 358 |
|
|
{ "<=", 2, {ET_FLOAT, ET_FLOAT}, &createLEFuncFloat }, |
| 359 |
|
|
{ ">=", 2, {ET_FLOAT, ET_FLOAT}, &createGEFuncFloat }, |
| 360 |
|
|
{ "==", 2, {ET_FLOAT, ET_FLOAT}, &createEQFuncFloat }, |
| 361 |
|
|
{ "!=", 2, {ET_FLOAT, ET_FLOAT}, &createNEFuncFloat }, |
| 362 |
|
|
{ "sqrt", 1, {ET_FLOAT}, &createSqrtFuncFloat }, |
| 363 |
|
|
{ "exp", 1, {ET_FLOAT}, &createExpFuncFloat }, |
| 364 |
|
|
{ "log", 1, {ET_FLOAT}, &createLogFuncFloat }, |
| 365 |
|
|
|
| 366 |
|
|
// FIXME: should return int, not float (use float2int) |
| 367 |
|
|
{ "ceil", 1, {ET_FLOAT}, &createCeilFuncFloat }, |
| 368 |
|
|
// FIXME: should return int, not float (use float2int) |
| 369 |
|
|
{ "floor", 1, {ET_FLOAT}, &createFloorFuncFloat }, |
| 370 |
|
|
|
| 371 |
|
|
{ "sin", 1, {ET_FLOAT}, &createSinFuncFloat }, |
| 372 |
|
|
{ "cos", 1, {ET_FLOAT}, &createCosFuncFloat }, |
| 373 |
|
|
{ "tan", 1, {ET_FLOAT}, &createTanFuncFloat }, |
| 374 |
|
|
{ "asin", 1, {ET_FLOAT}, &createASinFuncFloat }, |
| 375 |
|
|
{ "acos", 1, {ET_FLOAT}, &createACosFuncFloat }, |
| 376 |
|
|
{ "atan", 1, {ET_FLOAT}, &createATanFuncFloat }, |
| 377 |
|
|
{ "-", 1, {ET_FLOAT}, &createNegateFuncFloat }, |
| 378 |
|
|
|
| 379 |
|
|
{ ".", 2, {ET_STRING, ET_STRING}, &createConcatFuncStr }, |
| 380 |
|
|
{ "<", 2, {ET_STRING, ET_STRING}, &createLTFuncStr }, |
| 381 |
|
|
{ ">", 2, {ET_STRING, ET_STRING}, &createGTFuncStr }, |
| 382 |
|
|
{ "<=", 2, {ET_STRING, ET_STRING}, &createLEFuncStr }, |
| 383 |
|
|
{ ">=", 2, {ET_STRING, ET_STRING}, &createGEFuncStr }, |
| 384 |
|
|
{ "==", 2, {ET_STRING, ET_STRING}, &createEQFuncStr }, |
| 385 |
|
|
{ "!=", 2, {ET_STRING, ET_STRING}, &createNEFuncStr }, |
| 386 |
|
|
|
| 387 |
|
|
{ "?:", 2, {ET_INTEGER, ET_VARARGS}, &createMiniIf }, |
| 388 |
|
|
{ "typeof", 1, {ET_INTEGER}, &createTypeOfInt }, |
| 389 |
|
|
{ "typeof", 1, {ET_FLOAT}, &createTypeOfFloat }, |
| 390 |
|
|
{ "typeof", 1, {ET_STRING}, &createTypeOfStr }, |
| 391 |
|
|
|
| 392 |
|
|
{ NULL } |
| 393 |
|
|
}; |
Parent Directory
| 
Revision Log