cql2pqf: refactor truncation handling and fix Z39.58 mode

Refactor the CQL to PQF term code in cqltransform.c. Characters that
don't need escaping aren't and characters that do need escaping are.
For example CQL query a#a? must be handled as a Z39.58 mode query
because the trailing ? (single-character mask in CQL). But since the
generated term includes #, it must be escaped and survive the PQF parse,
thus the result is "\\#a#" (was "a#a# before). Also the CQL term a*3 now
produces "a?\\3" rather than "a?3" . This is becauase a?n has special
meaning in Z39.58. Characters that do need escaping are the PQF specials
" and \\. Rest are preseved and \-sequence in CQL are otherwise removed.

diff --git a/src/cqltransform.c b/src/cqltransform.c
index 3163775..117ca97 100644 (file)
--- a/src/cqltransform.c
+++ b/src/cqltransform.c
@@ -617,7 +617,7 @@ static void emit_term(cql_transform_t ct,
     int i;
     const char *ns = cn->u.st.index_uri;
     int process_term = !has_modifier(cn, "regexp");
-    char *z3958_mem = 0;
+    int z3958_mode = 0;
 
     assert(cn->which == CQL_NODE_ST);
 
@@ -685,34 +685,12 @@ static void emit_term(cql_transform_t ct,
         }
         else if (first_wc)
         {
-            /* We have one or more wildcard characters, but not in a
-             * way that can be dealt with using only the standard
-             * left-, right- and both-truncation attributes.  We need
-             * to translate the pattern into a Z39.58-type pattern,
-             * which has been supported in BIB-1 since 1996.  If
-             * there's no configuration element for "truncation.z3958"
-             * we indicate this as error 28 "Masking character not
-             * supported".
-             */
-            int i;
+            z3958_mode = 1;
             cql_pr_attr(ct, "truncation", "z3958", 0,
                         pr, client_data, YAZ_SRW_MASKING_CHAR_UNSUPP);
-            z3958_mem = (char *) xmalloc(length+1);
-            for (i = 0; i < length; i++)
-            {
-                if (i > 0 && term[i-1] == '\\')
-                    z3958_mem[i] = term[i];
-                else if (term[i] == '*')
-                    z3958_mem[i] = '?';
-                else if (term[i] == '?')
-                    z3958_mem[i] = '#';
-                else
-                    z3958_mem[i] = term[i];
-            }
-            z3958_mem[length] = '\0';
-            term = z3958_mem;
         }
-        else {
+        else
+        {
             /* No masking characters.  Use "truncation.none" if given. */
             cql_pr_attr(ct, "truncation", "none", 0,
                         pr, client_data, 0);
@@ -733,20 +711,47 @@ static void emit_term(cql_transform_t ct,
         }
     }
 
+    /* produce only \-sequences if:
+       1) the output is a Z39.58-trunc reserved character
+       2) the output is a PQF reserved character (\\, \")
+    */
     (*pr)("\"", client_data);
     for (i = 0; i < length; i++)
     {
-        /* pr(int) each character */
-        /* we do not need to deal with \-sequences because the
-           CQL and PQF terms have same \-format, bug #1988 */
-        char buf[2];
-
-        buf[0] = term[i];
-        buf[1] = '\0';
-        (*pr)(buf, client_data);
+        char x[3]; /* temp buffer */
+        if (i > 0 && term[i-1] == '\\')
+        {
+            if (term[i] == '\"' || term[i] == '\\')
+                pr("\\", client_data);
+            if (z3958_mode && strchr("#?", term[i]))
+                pr("\\\\", client_data); /* double \\ to survive PQF parse */
+            x[0] = term[i];
+            x[1] = '\0';
+            pr(x, client_data);
+        }
+        else if (z3958_mode && term[i] == '*')
+        {
+            pr("?", client_data);
+            /* avoid ?n sequences output (n=[0-9]) because that has
+               different semantics than just a single ? in Z39.58
+            */
+            if (i < length - 1 && yaz_isdigit(term[i+1]))
+                pr("\\\\", client_data); /* double \\ to survive PQF parse */
+        }
+        else if (z3958_mode && term[i] == '?')
+            pr("#", client_data);
+        else if (term[i] != '\\')
+        {
+            if (term[i] == '\"')
+                pr("\\", client_data);
+            if (z3958_mode && strchr("#?", term[i]))
+                pr("\\\\", client_data); /* double \\ to survive PQF parse */
+            x[0] = term[i];
+            x[1] = '\0';
+            pr(x, client_data);
+        }
     }
     (*pr)("\" ", client_data);
-    xfree(z3958_mem);
 }
 
 static void emit_terms(cql_transform_t ct,

diff --git a/test/cql2pqf/1.1.out b/test/cql2pqf/1.1.out
index b881596..7791c20 100644 (file)
--- a/test/cql2pqf/1.1.out
+++ b/test/cql2pqf/1.1.out
@@ -1 +1,2 @@
+Parsing CQL a
 @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "a" 

diff --git a/test/cql2pqf/1.2.out b/test/cql2pqf/1.2.out
index de3e6a9..413ec53 100644 (file)
--- a/test/cql2pqf/1.2.out
+++ b/test/cql2pqf/1.2.out
@@ -1 +1,2 @@
+Parsing CQL a b
 @attr 6=1 @attr 2=3 @attr 4=1 @and @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "a" @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "b" 

diff --git a/test/cql2pqf/1.3.out b/test/cql2pqf/1.3.out
index e5f2c38..7ead55a 100644 (file)
--- a/test/cql2pqf/1.3.out
+++ b/test/cql2pqf/1.3.out
@@ -1 +1,2 @@
+Parsing CQL "a b"
 @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "a b" 

diff --git a/test/cql2pqf/2.1.out b/test/cql2pqf/2.1.out
index 22f9db6..43777c9 100644 (file)
--- a/test/cql2pqf/2.1.out
+++ b/test/cql2pqf/2.1.out
@@ -1 +1,2 @@
+Parsing CQL title = fish
 @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=4 "fish" 

diff --git a/test/cql2pqf/2.2.out b/test/cql2pqf/2.2.out
index 22f9db6..dda42e5 100644 (file)
--- a/test/cql2pqf/2.2.out
+++ b/test/cql2pqf/2.2.out
@@ -1 +1,2 @@
+Parsing CQL dc.title = fish
 @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=4 "fish" 

diff --git a/test/cql2pqf/3.1.out b/test/cql2pqf/3.1.out
index bc0d04d..e60d2ab 100644 (file)
--- a/test/cql2pqf/3.1.out
+++ b/test/cql2pqf/3.1.out
@@ -1 +1,2 @@
+Parsing CQL cat or dog
 @or @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "cat" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "dog" 

diff --git a/test/cql2pqf/3.2.out b/test/cql2pqf/3.2.out
index 7e88a2c..f97d972 100644 (file)
--- a/test/cql2pqf/3.2.out
+++ b/test/cql2pqf/3.2.out
@@ -1 +1,2 @@
+Parsing CQL cat and fish
 @and @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "cat" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "fish" 

diff --git a/test/cql2pqf/3.3.out b/test/cql2pqf/3.3.out
index 6a9dd4a..ebc4c26 100644 (file)
--- a/test/cql2pqf/3.3.out
+++ b/test/cql2pqf/3.3.out
@@ -1 +1,2 @@
+Parsing CQL cat not frog
 @not @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "cat" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "frog" 

diff --git a/test/cql2pqf/3.4.out b/test/cql2pqf/3.4.out
index 6a9dd4a..7204858 100644 (file)
--- a/test/cql2pqf/3.4.out
+++ b/test/cql2pqf/3.4.out
@@ -1 +1,2 @@
+Parsing CQL (cat not frog)
 @not @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "cat" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "frog" 

diff --git a/test/cql2pqf/3.5.out b/test/cql2pqf/3.5.out
index 893ab74..437b006 100644 (file)
--- a/test/cql2pqf/3.5.out
+++ b/test/cql2pqf/3.5.out
@@ -1 +1,2 @@
+Parsing CQL "cat" not "fish food"
 @not @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "cat" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "fish food" 

diff --git a/test/cql2pqf/3.6.out b/test/cql2pqf/3.6.out
index 7c9d99c..bfb40b6 100644 (file)
--- a/test/cql2pqf/3.6.out
+++ b/test/cql2pqf/3.6.out
@@ -1 +1,2 @@
+Parsing CQL xml and "prox///"
 @and @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "xml" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "prox///" 

diff --git a/test/cql2pqf/3.7.out b/test/cql2pqf/3.7.out
index 65f6e63..6ab6f24 100644 (file)
--- a/test/cql2pqf/3.7.out
+++ b/test/cql2pqf/3.7.out
@@ -1 +1,2 @@
+Parsing CQL fred and any
 @and @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "fred" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "any" 

diff --git a/test/cql2pqf/3.8.out b/test/cql2pqf/3.8.out
index d43365b..9a4c255 100644 (file)
--- a/test/cql2pqf/3.8.out
+++ b/test/cql2pqf/3.8.out
@@ -1 +1,2 @@
+Parsing CQL ((fred or all))
 @or @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "fred" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "all" 

diff --git a/test/cql2pqf/3.9.out b/test/cql2pqf/3.9.out
index e1e1637..974d023 100644 (file)
--- a/test/cql2pqf/3.9.out
+++ b/test/cql2pqf/3.9.out
@@ -1 +1,2 @@
+Parsing CQL a or b and c not d 
 @not @and @or @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "a" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "b" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "c" @attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "d" 

diff --git a/test/cql2pqf/4.1.err b/test/cql2pqf/4.1.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.1.out b/test/cql2pqf/4.1.out
new file mode 100644 (file)
index 0000000..0de660d
--- /dev/null
+++ b/test/cql2pqf/4.1.out
@@ -0,0 +1,2 @@
+Parsing CQL *a
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=2 @attr 1=1016 "a" 

diff --git a/test/cql2pqf/4.10.err b/test/cql2pqf/4.10.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.10.out b/test/cql2pqf/4.10.out
new file mode 100644 (file)
index 0000000..ad7816f
--- /dev/null
+++ b/test/cql2pqf/4.10.out
@@ -0,0 +1,2 @@
+Parsing CQL *a#
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=2 @attr 1=1016 "a#" 

diff --git a/test/cql2pqf/4.11.err b/test/cql2pqf/4.11.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.11.out b/test/cql2pqf/4.11.out
new file mode 100644 (file)
index 0000000..3d875dd
--- /dev/null
+++ b/test/cql2pqf/4.11.out
@@ -0,0 +1,2 @@
+Parsing CQL a#a*
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=1 @attr 1=1016 "a#a" 

diff --git a/test/cql2pqf/4.12.err b/test/cql2pqf/4.12.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.12.out b/test/cql2pqf/4.12.out
new file mode 100644 (file)
index 0000000..777b067
--- /dev/null
+++ b/test/cql2pqf/4.12.out
@@ -0,0 +1,2 @@
+Parsing CQL a*3
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "a?\\3" 

diff --git a/test/cql2pqf/4.2.err b/test/cql2pqf/4.2.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.2.out b/test/cql2pqf/4.2.out
new file mode 100644 (file)
index 0000000..0da3876
--- /dev/null
+++ b/test/cql2pqf/4.2.out
@@ -0,0 +1,2 @@
+Parsing CQL a*
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=1 @attr 1=1016 "a" 

diff --git a/test/cql2pqf/4.3.err b/test/cql2pqf/4.3.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.3.out b/test/cql2pqf/4.3.out
new file mode 100644 (file)
index 0000000..525bec3
--- /dev/null
+++ b/test/cql2pqf/4.3.out
@@ -0,0 +1,2 @@
+Parsing CQL *a*
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=3 @attr 1=1016 "a" 

diff --git a/test/cql2pqf/4.4.err b/test/cql2pqf/4.4.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.4.out b/test/cql2pqf/4.4.out
new file mode 100644 (file)
index 0000000..574804a
--- /dev/null
+++ b/test/cql2pqf/4.4.out
@@ -0,0 +1,2 @@
+Parsing CQL a*a
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "a?a" 

diff --git a/test/cql2pqf/4.5.err b/test/cql2pqf/4.5.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.5.out b/test/cql2pqf/4.5.out
new file mode 100644 (file)
index 0000000..ee840c1
--- /dev/null
+++ b/test/cql2pqf/4.5.out
@@ -0,0 +1,2 @@
+Parsing CQL ?a
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "#a" 

diff --git a/test/cql2pqf/4.6.err b/test/cql2pqf/4.6.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.6.out b/test/cql2pqf/4.6.out
new file mode 100644 (file)
index 0000000..d6d0796
--- /dev/null
+++ b/test/cql2pqf/4.6.out
@@ -0,0 +1,2 @@
+Parsing CQL a?
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "a#" 

diff --git a/test/cql2pqf/4.7.err b/test/cql2pqf/4.7.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.7.out b/test/cql2pqf/4.7.out
new file mode 100644 (file)
index 0000000..77527e5
--- /dev/null
+++ b/test/cql2pqf/4.7.out
@@ -0,0 +1,2 @@
+Parsing CQL ?a?
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "#a#" 

diff --git a/test/cql2pqf/4.8.err b/test/cql2pqf/4.8.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.8.out b/test/cql2pqf/4.8.out
new file mode 100644 (file)
index 0000000..3934395
--- /dev/null
+++ b/test/cql2pqf/4.8.out
@@ -0,0 +1,2 @@
+Parsing CQL a?a
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "a#a" 

diff --git a/test/cql2pqf/4.9.err b/test/cql2pqf/4.9.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/4.9.out b/test/cql2pqf/4.9.out
new file mode 100644 (file)
index 0000000..300cf29
--- /dev/null
+++ b/test/cql2pqf/4.9.out
@@ -0,0 +1,2 @@
+Parsing CQL a#a?
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "a\\#a#" 

diff --git a/test/cql2pqf/5.1.err b/test/cql2pqf/5.1.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/5.1.out b/test/cql2pqf/5.1.out
new file mode 100644 (file)
index 0000000..45e62bf
--- /dev/null
+++ b/test/cql2pqf/5.1.out
@@ -0,0 +1,2 @@
+Parsing CQL a*\3
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "a?3" 

diff --git a/test/cql2pqf/5.2.err b/test/cql2pqf/5.2.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/5.2.out b/test/cql2pqf/5.2.out
new file mode 100644 (file)
index 0000000..8f7671e
--- /dev/null
+++ b/test/cql2pqf/5.2.out
@@ -0,0 +1,2 @@
+Parsing CQL \*a#
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "*a#" 

diff --git a/test/cql2pqf/5.3.err b/test/cql2pqf/5.3.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/5.3.out b/test/cql2pqf/5.3.out
new file mode 100644 (file)
index 0000000..9c70637
--- /dev/null
+++ b/test/cql2pqf/5.3.out
@@ -0,0 +1,2 @@
+Parsing CQL \*a*b#
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=104 @attr 1=1016 "*a?b\\#" 

diff --git a/test/cql2pqf/5.4.err b/test/cql2pqf/5.4.err
new file mode 100644 (file)
index 0000000..e69de29

diff --git a/test/cql2pqf/5.4.out b/test/cql2pqf/5.4.out
new file mode 100644 (file)
index 0000000..0005a1c
--- /dev/null
+++ b/test/cql2pqf/5.4.out
@@ -0,0 +1,2 @@
+Parsing CQL \"
+@attr 6=1 @attr 2=3 @attr 4=1 @attr 3=3 @attr 6=1 @attr 5=100 @attr 1=1016 "\"" 

diff --git a/test/cql2pqfsample b/test/cql2pqfsample
index 166bcca..a11bbd4 100644 (file)
--- a/test/cql2pqfsample
+++ b/test/cql2pqfsample
@@ -1,18 +1,15 @@
 # CQL queries for testing.
-# from http://www.loc.gov/z3950/agency/zing/cql/sample-queries.html
+# Read by test_cql2pqf.sh
+# No blank lines!
+#
 # Simple Term
-
 a
 a b
 "a b"
-
 # Index Relation Term
-
 title = fish
 dc.title = fish
-
 # Simple Boolean
-
 cat or dog
 cat and fish
 cat not frog
@@ -22,4 +19,21 @@ xml and "prox///"
 fred and any
 ((fred or all))
 a or b and c not d 
-
+# Masking/Truncation
+*a
+a*
+*a*
+a*a
+?a
+a?
+?a?
+a?a
+a#a?
+*a#
+a#a*
+a*3
+# Escape sequences (sh reads one slash, though)
+a*\\3
+\\*a#
+\\*a*b#
+\\"

diff --git a/test/test_cql2pqf.sh b/test/test_cql2pqf.sh
index 052b8e4..429e38a 100755 (executable)
--- a/test/test_cql2pqf.sh
+++ b/test/test_cql2pqf.sh
@@ -9,7 +9,7 @@ comment=0
 ecode=0
 test -f ${srcdir}/cql2pqfsample || exit 1
 test -d cql2pqf || mkdir cql2pqf
-for f in `cat ${srcdir}/cql2pqfsample`; do
+while read f; do
        if echo $f | grep '^#' >/dev/null; then
                comment=1
        else
@@ -24,7 +24,7 @@ for f in `cat ${srcdir}/cql2pqfsample`; do
                OUT2=cql2pqf/$secno.$testno.out.tmp
                ERR2=cql2pqf/$secno.$testno.err.tmp
                DIFF=cql2pqf/$secno.$testno.diff
-               ../util/cql2pqf ${srcdir}/../etc/pqf.properties "$f" >$OUT2 2>$ERR2
+               ../util/cql2pqf -v ${srcdir}/../etc/pqf.properties "$f" >$OUT2 2>$ERR2
                if test -f $OUT1 -a -f $ERR1; then
                        if diff $OUT1 $OUT2 >$DIFF; then
                                rm $DIFF
@@ -49,6 +49,6 @@ for f in `cat ${srcdir}/cql2pqfsample`; do
                        ecode=1
                fi      
        fi              
-done
+done < cql2pqfsample
 IFS="$oIFS"
 exit $ecode

diff --git a/util/cql2pqf.c b/util/cql2pqf.c
index 40aa034..b449a4b 100644 (file)
--- a/util/cql2pqf.c
+++ b/util/cql2pqf.c
@@ -26,11 +26,12 @@ int main(int argc, char **argv)
     char *query = 0;
     char *fname = 0;
     int reverse = 0;
+    int verbose = 1;
 
     int ret;
     char *arg;
 
-    while ((ret = options("n:r", argv, argc, &arg)) != -2)
+    while ((ret = options("n:rv", argv, argc, &arg)) != -2)
     {
         switch (ret)
         {
@@ -40,11 +41,14 @@ int main(int argc, char **argv)
             else
                 query = arg;
             break;
+        case 'n':
+            iterations = atoi(arg);
+            break;
         case 'r':
             reverse = 1;
             break;
-        case 'n':
-            iterations = atoi(arg);
+        case 'v':
+            verbose = 1;
             break;
         default:
             usage();
@@ -100,6 +104,8 @@ int main(int argc, char **argv)
         
         if (query)
         {
+            if (verbose)
+                printf("Parsing CQL %s\n", query);
             for (i = 0; i<iterations; i++)
                 r = cql_parser_string(cp, query);
         }