DtMmdb: move to lib directory as a standalone library.
This commit is contained in:
Liang Chang
421
cde/lib/DtMmdb/StyleSheet/evaluate.C
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421
cde/lib/DtMmdb/StyleSheet/evaluate.C
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/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these libraries and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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// $XConsortium: evaluate.cc /main/3 1996/06/11 17:10:18 cde-hal $
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#include "Types.h"
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#include "Expression.h"
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#include "Feature.h"
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#include "FeatureValue.h"
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#include "ResolverStack.h"
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#include "StyleSheet.h"
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#include "StyleSheetExceptions.h"
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#include "SymTab.h"
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#include "VariableTable.h"
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extern const Element *gCurrentElement ;
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extern const FeatureSet *gCurrentLocalSet;
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extern const FeatureSet *gParentCompleteSet;
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// unused except by HardCopy
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Renderer *gRenderer = 0 ;
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void
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styleerror(char *errorstr)
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{
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cerr << "Parse Error: " << errorstr << endl;
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}
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main(int argc, char **argv)
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{
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INIT_EXCEPTIONS();
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StyleSheet ss;
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FeatureSet fs;
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FeatureValue *exp ;
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/* -------- String -------- */
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fs.add(new Feature(gSymTab->intern("string"),
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new FeatureValueString("this is a string")));
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/* -------- Symbol -------- */
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fs.add(new Feature(gSymTab->intern("symbol"),
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new FeatureValueSymbol(gSymTab->intern("Symbol"))));
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/* -------- Integer -------- */
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fs.add(new Feature(gSymTab->intern("int"),
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new FeatureValueInt(17)));
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/* -------- Real -------- */
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fs.add(new Feature(gSymTab->intern("real"),
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new FeatureValueReal(42.2)));
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/* -------- Integer addition -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(new FeatureValueInt(10)),
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new ConstantNode(new FeatureValueInt(10)))));
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// check cloning
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FeatureValueExpression ep(*(FeatureValueExpression*)exp);
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fs.add(new Feature(gSymTab->intern("int + int"), exp));
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/* -------- Integer subtraction -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::MINUS,
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new ConstantNode(new FeatureValueInt(3)),
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new ConstantNode(new FeatureValueInt(127)))));
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fs.add(new Feature(gSymTab->intern("int - int"), exp));
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/* -------- Integer division -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::DIVIDE,
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new ConstantNode(new FeatureValueInt(10)),
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new ConstantNode(new FeatureValueInt(2)))));
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fs.add(new Feature(gSymTab->intern("int / int"), exp));
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/* -------- Real division -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::DIVIDE,
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new ConstantNode(new FeatureValueReal(5)),
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new ConstantNode(new FeatureValueReal(2)))));
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fs.add(new Feature(gSymTab->intern("real / real"), exp));
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/* -------- Real multiplication -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::TIMES,
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new ConstantNode(new FeatureValueReal(5.1)),
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new ConstantNode(new FeatureValueReal(8.7)))));
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fs.add(new Feature(gSymTab->intern("real * real"), exp));
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/* -------- int + real -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(new FeatureValueInt(5)),
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new ConstantNode(new FeatureValueReal(8.7)))));
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fs.add(new Feature(gSymTab->intern("int + real"), exp));
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/* -------- real + int -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(new FeatureValueReal(8.7)),
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new ConstantNode(new FeatureValueInt(5)))));
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fs.add(new Feature(gSymTab->intern("real + int"), exp));
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/* -------- now do some variable stuff -------- */
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// empty top of stack item
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// gTopOfStack = new ResolverStackElement(0,new FeatureSet(),new FeatureSet());
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FeatureSet *localSet = new FeatureSet ;
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gCurrentElement = 0 ;
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gCurrentLocalSet = localSet ;
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gParentCompleteSet = new FeatureSet ;
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// add an element for variable lookup
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localSet->add(new Feature(gSymTab->intern("size"),
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new FeatureValueInt(10)));
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// make some variable entries
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// insert a duplicate to check memory leaks
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gVariableTable->enter(gSymTab->intern("DEFAULT_FONT_FAMILY"),
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new Expression(new ConstantNode(new FeatureValueString("courier"))));
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gVariableTable->enter(gSymTab->intern("DEFAULT_FONT_FAMILY"),
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new Expression(new ConstantNode(new FeatureValueString("helvetica"))));
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fs.add(new Feature(gSymTab->intern("exp"),
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new FeatureValueExpression
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(new Expression (new VariableNode(gSymTab->intern("DEFAULT_FONT_FAMILY"))))));
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CompositeVariableNode *cvn = new CompositeVariableNode;
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cvn->appendItem(gSymTab->intern("size"));
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fs.add(new Feature(gSymTab->intern("Xsize"),
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new FeatureValueExpression(new Expression (cvn))));
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/* -------- dimensions -------- */
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fs.add(new Feature(gSymTab->intern("dim"),
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new FeatureValueDimension(new FeatureValueInt(10),
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FeatureValueDimension::INCH)));
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(new FeatureValueInt(5)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(25),
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FeatureValueDimension::INCH)))));
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fs.add(new Feature(gSymTab->intern("int + dim"), exp));
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(25),
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FeatureValueDimension::INCH)),
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new ConstantNode(new FeatureValueInt(5)))));
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fs.add(new Feature(gSymTab->intern("dim + int"), exp));
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(25),
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FeatureValueDimension::POINT)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(5),
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FeatureValueDimension::INCH)))));
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fs.add(new Feature(gSymTab->intern("dim + dim"), exp));
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/* -------- real * dim -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::TIMES,
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new ConstantNode
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(new FeatureValueReal(2.2)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)))));
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fs.add(new Feature(gSymTab->intern("real * dim"), exp));
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/* -------- dim * real -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::TIMES,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)),
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new ConstantNode
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(new FeatureValueReal(2.1)))));
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fs.add(new Feature(gSymTab->intern("dim * real"), exp));
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/* -------- dim / real -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::DIVIDE,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)),
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new ConstantNode
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(new FeatureValueReal(2.0)))));
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fs.add(new Feature(gSymTab->intern("dim / real"), exp));
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/* -------- real / dim -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::DIVIDE,
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new ConstantNode
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(new FeatureValueReal(11)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(2),
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FeatureValueDimension::POINT)))));
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fs.add(new Feature(gSymTab->intern("real / dim"), exp));
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/* -------- dim * int -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::TIMES,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)),
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new ConstantNode
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(new FeatureValueInt(2)))));
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fs.add(new Feature(gSymTab->intern("dim * int"), exp));
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/* -------- int * dim -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::TIMES,
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new ConstantNode
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(new FeatureValueInt(2)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)))));
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fs.add(new Feature(gSymTab->intern("int * dim"), exp));
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/* -------- dim / int -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::DIVIDE,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)),
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new ConstantNode
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(new FeatureValueInt(2)))));
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fs.add(new Feature(gSymTab->intern("dim / int"), exp));
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/* -------- int / dim -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::DIVIDE,
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new ConstantNode
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(new FeatureValueInt(22)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)))));
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fs.add(new Feature(gSymTab->intern("int / dim"), exp));
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/* -------- int - dim -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::MINUS,
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new ConstantNode
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(new FeatureValueInt(2)),
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)))));
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fs.add(new Feature(gSymTab->intern("int - dim"), exp));
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/* -------- dim - int -------- */
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exp = new FeatureValueExpression
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(new Expression
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(new BinaryOperatorNode(BinaryOperatorNode::MINUS,
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new ConstantNode
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(new FeatureValueDimension
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(new FeatureValueInt(11),
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FeatureValueDimension::POINT)),
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new ConstantNode
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(new FeatureValueInt(2)))));
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fs.add(new Feature(gSymTab->intern("dim - int"), exp));
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/* -------- String + String -------- */
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(new FeatureValueString("foo")),
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new ConstantNode(new FeatureValueString("bar")))));
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fs.add(new Feature(gSymTab->intern("String + String"), exp));
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/* -------- String + String + String-------- */
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FeatureValueExpression *exp1 =
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new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(new FeatureValueString("foo")),
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new ConstantNode(new FeatureValueString("bar")))));
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exp = new FeatureValueExpression
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(new Expression(new BinaryOperatorNode(BinaryOperatorNode::PLUS,
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new ConstantNode(exp1),
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new ConstantNode(new FeatureValueString("baz")))));
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fs.add(new Feature(gSymTab->intern("String + String + String"), exp));
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/* -------- print out our set -------- */
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cout << fs << endl;
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FeatureSet *evaluated = fs.evaluate();
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cout << *evaluated << endl;
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delete evaluated ;
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cout << *gVariableTable << endl;
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// write this guy out that we created at the top
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cout << ep << endl;
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delete gCurrentLocalSet ;
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delete gParentCompleteSet ;
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FeatureValueDimension *dtest =
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new FeatureValueDimension
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(new FeatureValueDimension(new FeatureValueInt(72),
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FeatureValue::POINT),
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FeatureValue::INCH);
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cout << *dtest << endl;
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cout << (float)*dtest << endl;
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delete dtest ;
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}
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