Add missing length description and the new ishtml function.

diff --git a/cmd/gvpr/gvpr.1 b/cmd/gvpr/gvpr.1
index b9411aca7fea2191888c832ad13994040acc9f2f..43f86df84d385da21e301c076cd188951a458516 100644 (file)
--- a/cmd/gvpr/gvpr.1
+++ b/cmd/gvpr/gvpr.1
@@ -647,6 +647,9 @@ length of \fIstr\fP, a fatal error occurs.
 provides the standard C function
 .IR strcmp (3).
 .TP
+\fBlength\fP(\fIs\fP : \fBstring\fP) : \fBint\fP
+returns the length of string \fIs\fP.
+.TP
 \fBindex\fP(\fIs\fP : \fBstring\fP, \fIt\fP : \fBstring\fP) : \fBint\fP
 .TP
 \fBrindex\fP(\fIs\fP : \fBstring\fP, \fIt\fP : \fBstring\fP) : \fBint\fP
@@ -678,6 +681,9 @@ note that the
 angle bracket quotes should not be part of \fIs\fP. These will be added if 
 \fIg\fP is written in concrete DOT format.
 .TP
+\fBishtml\fP(\fIs\fP : \fBstring\fP) : \fBint\fP
+returns non-zero if and only if \fIs\fP is an HTML string.
+.TP
 \fBxOf\fP(\fIs\fP : \fBstring\fP) : \fBstring\fP
 returns the string "\fIx\fP" if \fIs\fP has the form "\fIx\fP,\fIy\fP", 
 where both \fIx\fP and \fIy\fP are numeric.