needed for applet search

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

diff --git a/src/com/stevesoft/pat/RBuffer.java b/src/com/stevesoft/pat/RBuffer.java
new file mode 100755 (executable)
index 0000000..08fb920
--- /dev/null
+++ b/src/com/stevesoft/pat/RBuffer.java
@@ -0,0 +1,36 @@
+//\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
+\r
+import java.io.*;\r
+import com.stevesoft.pat.wrap.*;\r
+\r
+/** This class is used internally by RegexReader to\r
+    store blocks of data. */\r
+class RBuffer {\r
+  boolean done = false;\r
+  StringBuffer sb;\r
+  int pos,epos;\r
+  RBuffer next;\r
+  RBuffer() {}\r
+  RBuffer(StringBuffer sb) { this.sb = sb; }\r
+  public String toString() {\r
+    return "sb="+sb.toString().replace('\n',' ')+\r
+      " pos="+pos+" epos="+epos+\r
+      " sb.length()="+sb.length()+\r
+      "\n"+sp(pos+3)+"^"+sp(epos-pos-1)+"^";\r
+  }\r
+  String sp(int n) {\r
+    if(n<=0)\r
+      return "";\r
+    StringBuffer sb = new StringBuffer(n);\r
+    for(int i=0;i<n;i++)\r
+      sb.append(' ');\r
+    return sb.toString();\r
+  }\r
+}\r