2 * Copyright (C) 2001, 2002 The Mir-coders group
4 * This file is part of Mir.
6 * Mir is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * Mir is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Mir; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 * In addition, as a special exception, The Mir-coders gives permission to link
21 * the code of this program with any library licensed under the Apache Software License,
22 * The Sun (tm) Java Advanced Imaging library (JAI), The Sun JIMI library
23 * (or with modified versions of the above that use the same license as the above),
24 * and distribute linked combinations including the two. You must obey the
25 * GNU General Public License in all respects for all of the code used other than
26 * the above mentioned libraries. If you modify this file, you may extend this
27 * exception to your version of the file, but you are not obligated to do so.
28 * If you do not wish to do so, delete this exception statement from your version.
32 import java.util.List;
34 import mir.generator.Generator;
35 import mir.generator.GeneratorExc;
36 import mir.generator.GeneratorFailure;
38 public class GeneratorStringFunctions {
40 private GeneratorStringFunctions() {}
42 public static class subStringFunction implements Generator.GeneratorFunction {
43 public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
45 if (aParameters.size()>3 || aParameters.size()<2)
46 throw new GeneratorExc("subStringFunction: 2 or 3 parameters expected: string from [length]");
48 if (aParameters.size()==3) {
49 return StringRoutines.interpretAsString(aParameters.get(0)).substring(
50 StringRoutines.interpretAsInteger(aParameters.get(1)),
51 StringRoutines.interpretAsInteger(aParameters.get(2)));
54 return StringRoutines.interpretAsString(aParameters.get(0)).substring(
55 StringRoutines.interpretAsInteger(aParameters.get(1)));
58 catch (GeneratorExc e) {
62 throw new GeneratorFailure(t);
67 public static class jdbcStringEscapeFunction implements Generator.GeneratorFunction {
68 public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
70 if (aParameters.size()!=1 || !(aParameters.get(0) instanceof String))
71 throw new GeneratorExc("jdbcStringEscapeFunction: 1 parameter expected: string ");
73 return JDBCStringRoutines.escapeStringLiteral((String) aParameters.get(0));
75 catch (GeneratorExc e) {
79 throw new GeneratorFailure(t);
84 public static class constructStructuredStringFunction implements Generator.GeneratorFunction {
85 public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
87 if (aParameters.size()!=1)
88 throw new GeneratorExc("constructStructureStringFunction: 1 parameter expected: string ");
90 if (aParameters.get(0)==null)
91 return StructuredContentParser.constructStringLiteral("");
93 return StructuredContentParser.constructStringLiteral("" + aParameters.get(0));
95 catch (GeneratorExc e) {
99 throw new GeneratorFailure(t);
104 public static class structuredStringParserFunction implements Generator.GeneratorFunction {
105 public Object perform(List aParameters) throws GeneratorExc, GeneratorFailure {
107 if (aParameters.size()!=1)
108 throw new GeneratorExc("constructStructureStringFunction: 1 parameter expected: string ");
110 if (aParameters.get(0)==null)
113 return StructuredContentParser.parse("" + aParameters.get(0));
115 catch (GeneratorExc e) {
118 catch (Throwable t) {
119 throw new GeneratorFailure(t);