5 // Ben Maurer (bmaurer@users.sourceforge.net)
11 // Permission is hereby granted, free of charge, to any person obtaining
12 // a copy of this software and associated documentation files (the
13 // "Software"), to deal in the Software without restriction, including
14 // without limitation the rights to use, copy, modify, merge, publish,
15 // distribute, sublicense, and/or sell copies of the Software, and to
16 // permit persons to whom the Software is furnished to do so, subject to
17 // the following conditions:
19 // The above copyright notice and this permission notice shall be
20 // included in all copies or substantial portions of the Software.
22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
32 using System
.Collections
;
36 using System
.Xml
.XPath
;
39 namespace Mono
.Xml
.Xsl
.Operations
{
40 // Represents an Attribute Value Template in XSL.
41 internal class XslAvt
{
46 public XslAvt (string str
, Compiler comp
) {
47 if (str
.IndexOf ("{") == -1 && str.IndexOf ("}") == -1) {
52 avtParts
= new ArrayList ();
53 StringBuilder sb
= new StringBuilder ();
54 StringReader r
= new StringReader (str
);
58 while (r
.Peek () != -1) {
59 char c
= (char)r
.Read ();
62 if ((char)r
.Peek () == '{') {
64 sb
.Append ((char)r
.Read ());
69 // Ok, we have already found a text
70 // part, lets save that.
71 avtParts
.Add (new SimpleAvtPart (sb
.ToString ()));
75 while ((c
= (char)r
.Read ()) != '}') {
77 case '\'': case '"': {
78 // We are inside a quote
81 while ((c
= (char)r
.Read ()) != unq
) {
84 throw new XsltCompileException ("unexpected end of AVT", null, comp
.Input
);
95 if (r
.Peek () == -1) throw new XsltCompileException ("unexpected end of AVT", null, comp
.Input
);
99 avtParts
.Add (new XPathAvtPart (comp
.CompileExpression (sb
.ToString ())));
105 throw new XsltCompileException ("Braces must be escaped", null, comp
.Input
);
112 if (sb
.Length
!= 0) {
113 // Ok, we have already found a text
114 // part, lets save that.
115 avtParts
.Add (new SimpleAvtPart (sb
.ToString ()));
120 public static string AttemptPreCalc (ref XslAvt avt
)
122 if (avt
== null) return null;
123 if (avt
.simpleString
!= null) {
124 string s
= avt
.simpleString
;
131 public string Evaluate (XslTransformProcessor p
)
133 if (simpleString
!= null) return simpleString
;
134 if (avtParts
.Count
== 1)
135 return ((AvtPart
) avtParts
[0]).Evaluate (p
);
137 StringBuilder sb
= p
.GetAvtStringBuilder ();
139 int len
= avtParts
.Count
;
140 for (int i
= 0; i
< len
; i
++)
141 sb
.Append (((AvtPart
) avtParts
[i
]).Evaluate (p
));
143 return p
.ReleaseAvtStringBuilder ();
146 // Represents part of an AVT
147 abstract class AvtPart
{
148 public abstract string Evaluate (XslTransformProcessor p
);
151 sealed class SimpleAvtPart
: AvtPart
{
153 public SimpleAvtPart (string val
)
158 public override string Evaluate (XslTransformProcessor p
)
164 sealed class XPathAvtPart
: AvtPart
{
165 XPathExpression expr
;
167 public XPathAvtPart (XPathExpression expr
)
172 public override string Evaluate (XslTransformProcessor p
)
174 return p
.EvaluateString (expr
);