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83 lines
2.6 KiB
83 lines
2.6 KiB
//==============================================================================
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//
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// Copyright (c) 2002-
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// Authors:
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// * Andrew Hinton <ug60axh@cs.bham.ac.uk> (University of Birmingham)
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// * Dave Parker <david.parker@comlab.ox.ac.uk> (University of Oxford, formerly University of Birmingham)
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//
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//------------------------------------------------------------------------------
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//
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// This file is part of PRISM.
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//
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// PRISM is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 2 of the License, or
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// (at your option) any later version.
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//
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// PRISM 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 PRISM; if not, write to the Free Software Foundation,
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// Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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//==============================================================================
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package userinterface.properties;
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import parser.ast.*;
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import prism.*;
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public class GUILabel
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{
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public GUIMultiProperties parent;
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public String name;
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public String label;
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public Exception parseError;
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public GUILabel(GUIMultiProperties parent, String name, String label)
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{
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this.parent = parent;
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this.name = name;
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this.label = label;
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this.parseError = null;
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}
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public void parse()
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{
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Expression expr = null;
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this.parseError = null;
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// See if label definition is parseable
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try {
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// Check name is a valid identifier
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try { expr = parent.getPrism().parseSingleExpressionString(name); }
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catch (PrismLangException e) { throw new PrismException("Invalid label name \""+name+"\""); }
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if (expr == null || !(expr instanceof ExpressionIdent)) throw new PrismException("Invalid label name \""+name+"\"");
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// Check (non-empty) label definition is valid (single) expression
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try { if (!("".equals(label))) parent.getPrism().parseSingleExpressionString(label); }
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catch (PrismLangException e) { throw new PrismException("Invalid expression \""+label+"\""); }
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}
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catch (PrismException e) {
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this.parseError = e;
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}
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}
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public boolean isParseable() { return parseError==null; }
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public String toString()
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{
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return "label \""+getNameString()+"\" = "+getValueString()+";";
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}
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public String getNameString()
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{
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return name;
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}
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public String getValueString()
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{
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return label;
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}
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}
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