1 files changed, 83 insertions, 0 deletions
diff --git a/src/base/range.cc b/src/base/range.cc
new file mode 100644
index 000000000..a4e50fc4f
--- /dev/null
+++ b/src/base/range.cc
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "base/intmath.hh"
+#include "base/range.hh"
+#include "base/str.hh"
+
+using namespace std;
+
+template <class T>
+bool
+__x_parse_range(const std::string &str, T &first, T &last)
+{
+    std::vector<std::string> values;
+    tokenize(values, str, ':');
+
+    T thefirst, thelast;
+
+    if (values.size() != 2)
+        return false;
+
+    std::string s = values[0];
+    std::string e = values[1];
+
+    if (!to_number(s, thefirst))
+        return false;
+
+    bool increment = (e[0] == '+');
+    if (increment)
+        e = e.substr(1);
+
+    if (!to_number(e, thelast))
+        return false;
+
+    if (increment)
+        thelast += thefirst - 1;
+
+    first = thefirst;
+    last = thelast;
+
+    return true;
+}
+
+#define RANGE_PARSE(type) \
+template<> bool \
+__parse_range(const std::string &s, type &first, type &last) \
+{ return __x_parse_range(s, first, last); }
+
+RANGE_PARSE(unsigned long long);
+RANGE_PARSE(signed long long);
+RANGE_PARSE(unsigned long);
+RANGE_PARSE(signed long);
+RANGE_PARSE(unsigned int);
+RANGE_PARSE(signed int);
+RANGE_PARSE(unsigned short);
+RANGE_PARSE(signed short);
+RANGE_PARSE(unsigned char);
+RANGE_PARSE(signed char);