1 files changed, 78 insertions, 0 deletions

diff --git a/src/hdb/comp.cc b/src/hdb/comp.cc
new file mode 100644
index 0000000..3cb304a
--- /dev/null
+++ b/src/hdb/comp.cc
@@ -0,0 +1,78 @@
+/*************************************************************************
+ *
+ * HTCd - Copyright (C) 1998-2006 Henrik Rydberg
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <hdb/db.h>
+using namespace std;
+
+const mstring compat="(compatibility)";
+const int zkey=0;
+
+OP2_IMPL(lti) {out<<(atoi(L)<atoi(R));}
+OP2_IMPL(lei) {out<<(atoi(L)<=atoi(R));}
+OP2_IMPL(gei) {out<<(atoi(L)>=atoi(R));}
+OP2_IMPL(gti) {out<<(atoi(L)>atoi(R));}
+
+void dbmap::setup()
+{
+  MLOCK(mutex);
+  if(M.empty()) {
+    opAddComp(M);
+    OP_ADDN(20,lti,lt.int,compat);
+    OP_ADDN(20,lei,le.int,compat);
+    OP_ADDN(20,gei,ge.int,compat);
+    OP_ADDN(20,gti,gt.int,compat);
+
+    M.add(new op_t("lt.case",20,M.get(sref("lt"))->f2,compat));
+    M.add(new op_t("gt.case",20,M.get(sref("gt"))->f2,compat));
+    M.add(new op_t("lt.nocase",20,M.get(sref("ltn"))->f2,compat));
+    M.add(new op_t("gt.nocase",20,M.get(sref("gtn"))->f2,compat));
+  }
+}
+
+const op_t* dbmap::CompOperator(const sref& s)
+{
+  if(M.empty()) setup();
+  const op_t* p=M.get(s);
+  if(!p) THROW("dbmap: could not find operator "<<s);
+  return p;
+}
+
+///////////////////////////////////////////////////////////////////
+
+void dbmap::Sort(const sref& tab,const sref& cmp) throw(merror_t)
+{
+  check();
+  int DO=0;
+  if(cmp.nempty()&&cmp!=compname) { compname=cmp; DO=1; }
+  if(tab.nempty()) { int col=Index(tab); if(col!=index) { index=col; DO=1; } }
+  if(DO) remap_recs();
+}
+
+void dbmap::Order(const sref& tab,const sref& cmp) throw(merror_t)
+{
+  check();
+  if(!wok) THROW("db: cannot order - readonly");
+  Sort(tab,cmp);
+  {
+    HEADLOCK(file);
+    file->head()->setcomp(index,compname);
+    remap_tabs();
+  }
+}
+