Merge pull request #1488 from katzyn/docs

Improve documentation of window and some other functions

h2/src/main/org/h2/value/ValueTime.java

@@ -230,12 +230,7 @@ public class ValueTime extends Value {
 
     @Override
     public int getSignum() {
-        return Long.signum(nanos);
-    }
-
-    @Override
-    public Value negate() {
-        return ValueTime.fromNanos(-nanos);
+        return (int) (-nanos >>> 63);
     }
 
 }

h2/src/tools/org/h2/build/doc/GenerateDoc.java

@@ -178,6 +178,7 @@ public class GenerateDoc {
                     text = StringUtils.replaceAll(text,
                             "<br />", " ");
                     text = addCode(text);
+                    text = addLinks(text);
                     map.put("text", text);
                 }
 
@@ -254,4 +255,42 @@ public class GenerateDoc {
         s = StringUtils.replaceAll(s, "<code>GB</code>", "GB");
         return s;
     }
+
+    private static String addLinks(String text) {
+        int start = nextLink(text, 0);
+        if (start < 0) {
+            return text;
+        }
+        StringBuilder buff = new StringBuilder(text.length());
+        int len = text.length();
+        int offset = 0;
+        do {
+            int end = start + 7;
+            for (; end < len && !Character.isWhitespace(text.charAt(end)); end++) {
+                // Nothing to do
+            }
+            buff.append(text, offset, start) //
+                    .append("<a href=\"").append(text, start, end).append("\">") //
+                    .append(text, start, end) //
+                    .append("</a>");
+            offset = end;
+        } while ((start = nextLink(text, offset)) >= 0);
+        return buff.append(text, offset, len).toString();
+    }
+
+    private static int nextLink(String text, int i) {
+        int found = -1;
+        found = findLink(text, i, "http://", found);
+        found = findLink(text, i, "https://", found);
+        return found;
+    }
+
+    private static int findLink(String text, int offset, String prefix, int found) {
+        int idx = text.indexOf(prefix, offset);
+        if (idx >= 0 && (found < 0 || idx < found)) {
+            found = idx;
+        }
+        return found;
+    }
+
 }

h2/src/tools/org/h2/build/doc/dictionary.txt

@@ -797,6 +797,6 @@ xym normalizes coord setz xyzm geometrycollection multipolygon mixup rings polyg
 pointzm pointz pointm dimensionality redefine forum measures
 mpg casted pzm mls constrained subtypes complains
 ranks rno dro rko precede cume reopens preceding unbounded rightly itr lag maximal tiles tile ntile signify
-partitioned tri
+partitioned tri partitions
 
-discard enhancements nolock
+discard enhancements nolock surefire logarithm