needed for applet search

[jalview.git] / src / com / stevesoft / pat / End.java

diff --git a/src/com/stevesoft/pat/End.java b/src/com/stevesoft/pat/End.java
new file mode 100755 (executable)
index 0000000..75e5acf
--- /dev/null
+++ b/src/com/stevesoft/pat/End.java
@@ -0,0 +1,42 @@
+//\r
+// This software is now distributed according to\r
+// the Lesser Gnu Public License.  Please see\r
+// http://www.gnu.org/copyleft/lesser.txt for\r
+// the details.\r
+//    -- Happy Computing!\r
+//\r
+package com.stevesoft.pat;\r
+import java.util.Hashtable;\r
+\r
+//class AddToEnd extends RegSyntax {};\r
+\r
+/** Compiles the '$' or the '\Z' Pattern.  It is\r
+ an error to have further Pattern elements after\r
+ '\Z'.  It is the end of the String. */\r
+class End extends Pattern {\r
+    boolean retIsEnd;\r
+    End(boolean b) { retIsEnd = b; }\r
+    public int matchInternal(int pos,Pthings pt) {\r
+        if(retIsEnd && pt.mFlag && pos < pt.src.length()) {\r
+            if(pt.src.charAt(pos)=='\n') {\r
+                return nextMatch(pos,pt);\r
+           }\r
+       }\r
+        if(pt.src.length() == pos)\r
+            return nextMatch(pos,pt);\r
+       else if(pos<pt.src.length())\r
+           // Access the next character...\r
+           // this is crucial to making \r
+           // RegexReader work.\r
+           pt.src.charAt(pos);\r
+        return -1;\r
+    }\r
+    public String toString() {\r
+        if(retIsEnd)\r
+            return "$";\r
+        else\r
+            return "\\Z";\r
+    }\r
+    public patInt maxChars() { return new patInt(1); }\r
+    public Pattern clone1(Hashtable h) { return new End(retIsEnd); }\r
+};\r