1 files changed, 220 insertions, 0 deletions
diff --git a/src/io/extract.cpp b/src/io/extract.cpp
new file mode 100644
index 0000000..55d3980
--- /dev/null
+++ b/src/io/extract.cpp
@@ -0,0 +1,220 @@
+#include "extract.hpp"
+//    extract.cpp - a simple, hierarchical, tokenizer
+//
+//    Copyright © 2013-2014 Ben Longbons <b.r.longbons@gmail.com>
+//
+//    This file is part of The Mana World (Athena server)
+//
+//    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 3 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, see <http://www.gnu.org/licenses/>.
+
+#include <algorithm>
+
+#include "../strings/astring.hpp"
+#include "../strings/xstring.hpp"
+#include "../strings/vstring.hpp"
+
+#include "../poison.hpp"
+
+
+// TODO also pass an io::LineSpan around.
+namespace tmwa
+{
+bool extract(XString str, XString *rv)
+{
+    *rv = str;
+    return true;
+}
+
+bool extract(XString str, RString *rv)
+{
+    *rv = str;
+    return true;
+}
+
+bool extract(XString str, AString *rv)
+{
+    *rv = str;
+    return true;
+}
+
+bool extract(XString str, std::chrono::nanoseconds *ns)
+{
+    std::chrono::nanoseconds::rep rep;
+    if (extract(str, &rep))
+    {
+        *ns = std::chrono::nanoseconds(rep);
+        return true;
+    }
+    if (str.endswith("ns"_s))
+    {
+        if (extract(str.xrslice_h("ns"_s.size()), &rep))
+        {
+            *ns = std::chrono::nanoseconds(rep);
+            return true;
+        }
+        return false;
+    }
+    std::chrono::microseconds bigger;
+    if (extract(str, &bigger))
+    {
+        *ns = bigger;
+        return *ns == bigger;
+    }
+    return false;
+}
+bool extract(XString str, std::chrono::microseconds *us)
+{
+    std::chrono::microseconds::rep rep;
+    if (extract(str, &rep))
+    {
+        *us = std::chrono::microseconds(rep);
+        return true;
+    }
+    if (str.endswith("us"_s))
+    {
+        if (extract(str.xrslice_h("us"_s.size()), &rep))
+        {
+            *us = std::chrono::microseconds(rep);
+            return true;
+        }
+        return false;
+    }
+    std::chrono::milliseconds bigger;
+    if (extract(str, &bigger))
+    {
+        *us = bigger;
+        return *us == bigger;
+    }
+    return false;
+}
+bool extract(XString str, std::chrono::milliseconds *ms)
+{
+    std::chrono::milliseconds::rep rep;
+    if (extract(str, &rep))
+    {
+        *ms = std::chrono::milliseconds(rep);
+        return true;
+    }
+    if (str.endswith("ms"_s))
+    {
+        if (extract(str.xrslice_h("ms"_s.size()), &rep))
+        {
+            *ms = std::chrono::milliseconds(rep);
+            return true;
+        }
+        return false;
+    }
+    std::chrono::seconds bigger;
+    if (extract(str, &bigger))
+    {
+        *ms = bigger;
+        return *ms == bigger;
+    }
+    return false;
+}
+bool extract(XString str, std::chrono::seconds *s)
+{
+    std::chrono::seconds::rep rep;
+    if (extract(str, &rep))
+    {
+        *s = std::chrono::seconds(rep);
+        return true;
+    }
+    if (str.endswith("s"_s))
+    {
+        if (extract(str.xrslice_h("s"_s.size()), &rep))
+        {
+            *s = std::chrono::seconds(rep);
+            return true;
+        }
+        return false;
+    }
+    std::chrono::minutes bigger;
+    if (extract(str, &bigger))
+    {
+        *s = bigger;
+        return *s == bigger;
+    }
+    return false;
+}
+bool extract(XString str, std::chrono::minutes *min)
+{
+    std::chrono::minutes::rep rep;
+    if (extract(str, &rep))
+    {
+        *min = std::chrono::minutes(rep);
+        return true;
+    }
+    if (str.endswith("min"_s))
+    {
+        if (extract(str.xrslice_h("min"_s.size()), &rep))
+        {
+            *min = std::chrono::minutes(rep);
+            return true;
+        }
+        return false;
+    }
+    std::chrono::hours bigger;
+    if (extract(str, &bigger))
+    {
+        *min = bigger;
+        return *min == bigger;
+    }
+    return false;
+}
+bool extract(XString str, std::chrono::hours *h)
+{
+    std::chrono::hours::rep rep;
+    if (extract(str, &rep))
+    {
+        *h = std::chrono::hours(rep);
+        return true;
+    }
+    if (str.endswith("h"_s))
+    {
+        if (extract(str.xrslice_h("h"_s.size()), &rep))
+        {
+            *h = std::chrono::hours(rep);
+            return true;
+        }
+        return false;
+    }
+    std::chrono::duration<int, std::ratio<60*60*24>> bigger;
+    if (extract(str, &bigger))
+    {
+        *h = bigger;
+        return *h == bigger;
+    }
+    return false;
+}
+bool extract(XString str, std::chrono::duration<int, std::ratio<60*60*24>> *d)
+{
+    std::chrono::duration<int, std::ratio<60*60*24>>::rep rep;
+    if (extract(str, &rep))
+    {
+        *d = std::chrono::duration<int, std::ratio<60*60*24>>(rep);
+        return true;
+    }
+    if (str.endswith("d"_s))
+    {
+        if (extract(str.xrslice_h("d"_s.size()), &rep))
+        {
+            *d = std::chrono::duration<int, std::ratio<60*60*24>>(rep);
+            return true;
+        }
+        return false;
+    }
+    return false;
+}
+} // namespace tmwa