X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fcom%2Fstevesoft%2Fpat%2FBackMatch.java;h=1d7499e6ad231ce64cba33dff2a93ca0734d2739;hb=4b2392caa53f1de3400e7916d1d9c7b815d446f4;hp=168faecdc303245cd14825007eec6d254b277c66;hpb=c40cf903f740a72ab63dd1abc10fa33450ce660d;p=jalview.git

diff --git a/src/com/stevesoft/pat/BackMatch.java b/src/com/stevesoft/pat/BackMatch.java
index 168faec..1d7499e 100755
--- a/src/com/stevesoft/pat/BackMatch.java
+++ b/src/com/stevesoft/pat/BackMatch.java
@@ -1,33 +1,57 @@
-//
-// This software is now distributed according to
-// the Lesser Gnu Public License.  Please see
-// http://www.gnu.org/copyleft/lesser.txt for
-// the details.
-//    -- Happy Computing!
-//
-package com.stevesoft.pat;
-import java.util.Hashtable;
-
-/** Provides the ability to match a backreference from within
-  * a Pattern.
-  */
-class BackMatch extends Pattern {
-    int id;
-    BackMatch(int id) { this.id = id; }
-    public String toString() { return "\\"+(id)+nextString(); }
-    public int matchInternal(int pos,Pthings p) {
-        int i1 = p.marks[id];
-        int i2 = p.marks[id+p.nMarks];
-        int imax = i2-i1;
-        if(i1<0||imax < 0||pos+imax>p.src.length()) return -1;
-        int ns = p.src.length()-pos;
-        if(imax < ns) ns = imax;
-        for(int i=0;i<ns;i++) {
-            if(p.src.charAt(i+i1) != p.src.charAt(pos+i))
-                return -1;
-        }
-        return nextMatch(pos+imax,p);
-    }
-    Pattern clone1(Hashtable h) { return new BackMatch(id); }
-}
-
+//
+// This software is now distributed according to
+// the Lesser Gnu Public License.  Please see
+// http://www.gnu.org/copyleft/lesser.txt for
+// the details.
+//    -- Happy Computing!
+//
+package com.stevesoft.pat;
+
+import java.util.Hashtable;
+
+/**
+ * Provides the ability to match a backreference from within a Pattern.
+ */
+class BackMatch extends Pattern
+{
+  int id;
+
+  BackMatch(int id)
+  {
+    this.id = id;
+  }
+
+  public String toString()
+  {
+    return "\\" + (id) + nextString();
+  }
+
+  public int matchInternal(int pos, Pthings p)
+  {
+    int i1 = p.marks[id];
+    int i2 = p.marks[id + p.nMarks];
+    int imax = i2 - i1;
+    if (i1 < 0 || imax < 0 || pos + imax > p.src.length())
+    {
+      return -1;
+    }
+    int ns = p.src.length() - pos;
+    if (imax < ns)
+    {
+      ns = imax;
+    }
+    for (int i = 0; i < ns; i++)
+    {
+      if (p.src.charAt(i + i1) != p.src.charAt(pos + i))
+      {
+        return -1;
+      }
+    }
+    return nextMatch(pos + imax, p);
+  }
+
+  Pattern clone1(Hashtable h)
+  {
+    return new BackMatch(id);
+  }
+}