enhance formatters, add table formatter

weboob/tools/application/formatters/table.py

@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+# Copyright(C) 2010  Christophe Benz
+# 
+# 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, version 3 of the License.
+# 
+# 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+
+from prettytable import PrettyTable
+
+from .iformatter import IFormatter
+
+
+__all__ = ['TableFormatter']
+
+
+class TableFormatter(IFormatter):
+    column_headers = None
+    queue = []
+
+    def __init__(self, result_funcname='get_string'):
+        self.result_funcname = result_funcname
+
+    def after_format(self, formatted):
+        if self.column_headers is None:
+            self.column_headers = formatted.keys()
+        self.queue.append(formatted.values())
+
+    def flush(self):
+        table = PrettyTable(self.column_headers)
+        for column_header in self.column_headers:
+            table.set_field_align(column_header, 'l')
+        for line in self.queue:
+            table.add_row(line)
+        print getattr(table, self.result_funcname)().encode('utf-8')
+
+    def format_dict(self, item):
+        # format is done in self.flush() by prettytable
+        return item