Also add this file. Handle properly all utf-8 char entered, and all keyboard shortcuts

1 files changed, 60 insertions, 0 deletions

diff --git a/src/keyboard.py b/src/keyboard.py
new file mode 100644
index 00000000..c9836250
--- /dev/null
+++ b/src/keyboard.py
@@ -0,0 +1,60 @@
+#!/usr/bin/python
+# -*- coding:utf-8 -*-
+#
+# Copyright 2010 Le Coz Florent <louizatakk@fedoraproject.org>
+#
+# This file is part of Poezio.
+#
+# Poezio 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.
+#
+# Poezio 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 Poezio.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Functions to interact with the keyboard
+Mainly, read keys entered and return a string (most
+of the time ONE char, but may be longer if it's a keyboard
+shortcut, like ^A or KEY_RESIZE)
+"""
+
+def get_next_byte(s):
+    """
+    Read the next byte of the utf-8 char
+    """
+    c = s.getkey()
+    if len(c) > 4:
+        return (None, c)
+    return (ord(c), c)
+
+def read_char(s):
+    """
+    Read one utf-8 char
+    see http://en.wikipedia.org/wiki/UTF-8#Description
+    """
+    (first, char) = get_next_byte(s)
+    if first == None: # Keyboard special, like KEY_HOME etc
+        return char
+    if first <= 127:  # ASCII char on one byte
+        if first <= 26:         # transform Ctrl+* keys
+            char =  "^"+chr(first + 64)
+        if first == 27:
+            (_, c) = get_next_byte(s)
+            char = "M-"+c
+        return char
+    if 194 <= first:
+        (code, c) = get_next_byte(s) # 2 bytes char
+        char += c
+    if 224 <= first:
+        (code, c) = get_next_byte(s) # 3 bytes char
+        char += c
+    if 240 <= code:
+        (code, c) = get_next_byte(s) # 4 bytes char
+        char += c
+    return char