eqnparserhelp.py included, basic i18n support

1 files changed, 67 insertions, 0 deletions

diff --git a/eqnparserhelp.py b/eqnparserhelp.py
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+# eqnparserhelp.py, help functions for the equation parser by
+# Reinier Heeres <reinier@heeres.eu>
+#
+# 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
+#
+# Change log:
+#    2007-09-16: rwh, first version
+
+import types
+
+from gettext import gettext as _
+
+class Callable:
+    def __init__(self, f):
+        self.__call__ = f
+
+# Just an example implementation; should be fixed for internationalization
+class EqnParserHelp():
+
+    DICT = {
+    "acos": "help_acos",
+    "asin": "help_asin",
+    "exp": "help_exp",
+    "functions": "help_functions",
+    "operators": "help_operators",
+    "plot": "help_plot",
+    "sqrt": "help_sqrt",
+    "test": "help_test",
+    "variables": "help_variables",
+    }
+
+    def __init__(self):
+        return
+
+    def help(about):
+        if type(about) != types.StringType or len(about) == 0:
+            return _("help_usage")
+
+        if about == "index":
+            ret = _("Topics") + ": "
+            for (key, val) in EqnParserHelp.DICT.iteritems():
+                ret += key + " "
+            return ret
+
+        ret = ""
+        for (key, val) in EqnParserHelp.DICT.iteritems():
+            if about.find(key) != -1:
+                ret += _(val)
+
+        if ret == "":
+            ret += _("No help about '%s' available, use help(index) for the index") % (about)
+
+        return ret
+
+    help = Callable(help)