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translate_class.py
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#!/usr/bin/python
# -*- coding: latin-1 -*-
#
# Raspberry Pi Radio Character translation class
# Escaped characters, html and unicode translation to ascii
#
# $Id: translate_class.py,v 1.13 2014/11/01 08:53:04 bob Exp $
#
# Author : Bob Rathbone
# Site : http://www.bobrathbone.com
#
# License: GNU V3, See https://www.gnu.org/copyleft/gpl.html
#
# Disclaimer: Software is provided as is and absolutly no warranties are implied or given.
# The authors shall not be liable for any loss or damage however caused.
#
# Useful Links on character encodings
# http://www.zytrax.com/tech/web/entities.html
# http://www.utf8-chartable.de/
#
import os
import time
import unicodedata
from log_class import Log
log = Log()
class Translate:
displayUmlauts = True
def __init__(self):
log.init('radio')
return
# Translate all
def all(self,text):
s = self._convert2escape(text)
s = self._escape(s)
s = self._unicode(s)
s = self._html(s)
return s
# Convert unicode to escape codes
def _convert2escape(self,text):
s = repr(text)
if s.__len__() > 2:
s= s[1:-1] # Strip ' characters
s = s.lstrip("'")
return s
# Convert escaped characters (umlauts) to normal characters
def escape(self,text):
s = self._convert2escape(text)
s = self._escape(s)
return s
# Convert escaped characters (umlauts etc.) to normal characters
def _escape(self,text):
s = text
s = s.replace('//', '/')
s = s.replace(' ', ' ') # Double spaces
s = s.replace('\\xa0', ' ') # Line feed to space
s = s.replace("\\'", "'")
s = s.replace("\\n", " ") # Line feed to space
# German unicode escape sequences
s = s.replace('\\xc3\\x83', chr(223)) # Sharp s es-zett
s = s.replace('\\xc3\\x9f', chr(223)) # Sharp s ?
s = s.replace('\\xc3\\xa4', chr(228)) # a umlaut
s = s.replace('\\xc3\\xb6', chr(246)) # o umlaut
s = s.replace('\\xc3\\xbc', chr(252)) # u umlaut
s = s.replace('\\xc3\\x84', chr(196)) # A umlaut
s = s.replace('\\xc3\\x96', chr(214)) # O umlaut
s = s.replace('\\xc3\\x9c', chr(220)) # U umlaut
# French unicode escape sequences
s = s.replace('\\xc3\\x80', 'A') # A grave
s = s.replace('\\xc3\\x81', 'A') # A acute
s = s.replace('\\xc3\\x82', 'A') # A circumflex
s = s.replace('\\xc3\\x83', 'A') # A tilde
s = s.replace('\\xc3\\x88', 'E') # E grave
s = s.replace('\\xc3\\x89', 'E') # E acute
s = s.replace('\\xc3\\x8a', 'E') # E circumflex
s = s.replace('\\xc3\\xa0', chr(224)) # a grave
s = s.replace('\\xc3\\xa1', chr(225)) # a acute
s = s.replace('\\xc3\\xa2', chr(226)) # a circumflex
s = s.replace('\\xc3\\xa8', chr(232)) # e grave
s = s.replace('\\xc3\\xa9', chr(233)) # e acute
s = s.replace('\\xc3\\xaa', chr(234)) # e circumflex
s = s.replace('\\xc3\\xb6', 'u') # u diaris
# Greek upper case
s = s.replace('\\xce\\x91', 'A') # Alpha
s = s.replace('\\xce\\x92', 'B') # Beta
s = s.replace('\\xce\\x93', 'G') # Gamma
s = s.replace('\\xce\\x94', 'D') # Delta
s = s.replace('\\xce\\x95', 'E') # Epsilon
s = s.replace('\\xce\\x96', 'Z') # Zeta
s = s.replace('\\xce\\x97', 'H') # Eta
s = s.replace('\\xce\\x98', 'TH') # Theta
s = s.replace('\\xce\\x99', 'I') # Iota
s = s.replace('\\xce\\x9a', 'K') # Kappa
s = s.replace('\\xce\\x9b', 'L') # Lamda
s = s.replace('\\xce\\x9c', 'M') # Mu
s = s.replace('\\xce\\x9e', 'N') # Nu
s = s.replace('\\xce\\x9f', 'O') # Omicron
s = s.replace('\\xce\\xa0', 'P') # Pi
s = s.replace('\\xce ', 'P') # Pi ?
s = s.replace('\\xce\\xa1', 'R') # Rho
s = s.replace('\\xce\\xa3', 'S') # Sigma
s = s.replace('\\xce\\xa4', 'T') # Tau
s = s.replace('\\xce\\xa5', 'Y') # Upsilon
s = s.replace('\\xce\\xa6', 'F') # Fi
s = s.replace('\\xce\\xa7', 'X') # Chi
s = s.replace('\\xce\\xa8', 'PS') # Psi
s = s.replace('\\xce\\xa9', 'O') # Omega
# Greek lower case
s = s.replace('\\xce\\xb1', 'a') # Alpha
s = s.replace('\\xce\\xb2', 'b') # Beta
s = s.replace('\\xce\\xb3', 'c') # Gamma
s = s.replace('\\xce\\xb4', 'd') # Delta
s = s.replace('\\xce\\xb5', 'e') # Epsilon
s = s.replace('\\xce\\xb6', 'z') # Zeta
s = s.replace('\\xce\\xb7', 'h') # Eta
s = s.replace('\\xce\\xb8', 'th') # Theta
s = s.replace('\\xce\\xb9', 'i') # Iota
s = s.replace('\\xce\\xba', 'k') # Kappa
s = s.replace('\\xce\\xbb', 'l') # Lamda
s = s.replace('\\xce\\xbc', 'm') # Mu
s = s.replace('\\xce\\xbd', 'v') # Nu
s = s.replace('\\xce\\xbe', 'ks') # Xi
s = s.replace('\\xce\\xbf', 'o') # Omicron
s = s.replace('\\xce\\xc0', 'p') # Pi
s = s.replace('\\xce\\xc1', 'r') # Rho
s = s.replace('\\xce\\xc3', 's') # Sigma
s = s.replace('\\xce\\xc4', 't') # Tau
s = s.replace('\\xce\\xc5', 'y') # Upsilon
s = s.replace('\\xce\\xc6', 'f') # Fi
s = s.replace('\\xce\\xc7', 'x') # Chi
s = s.replace('\\xce\\xc8', 'ps') # Psi
s = s.replace('\\xce\\xc9', 'o') # Omega
# Currency other special character
s = s.replace('\\xa3', chr(156)) # UK pound sign
s = s.replace('\\xa9', chr(169)) # Copyright
# German short hex representation
s = s.replace('\\xdf', chr(223)) # Sharp s es-zett
s = s.replace('\\xe4', chr(228)) # a umlaut
s = s.replace('\\xf6', chr(246)) # o umlaut
s = s.replace('\\xfc', chr(252)) # u umlaut
s = s.replace('\\xc4', chr(196)) # A umlaut
s = s.replace('\\xd6', chr(214)) # O umlaut
s = s.replace('\\xdc', chr(220)) # U umlaut
# Spanish and French
s = s.replace('\\xe0', chr(224)) # Small a reverse acute
s = s.replace('\\xe1', chr(225)) # Small a acute
s = s.replace('\\xe2', chr(226)) # Small audo bashcircumflex
s = s.replace('\\xe7', chr(231)) # Small c Cedilla
s = s.replace('\\xe8', chr(232)) # Small e grave
s = s.replace('\\xe9', chr(233)) # Small e acute
s = s.replace('\\xea', chr(234)) # Small e circumflex
s = s.replace('\\xeb', chr(235)) # Small e diarisis
s = s.replace('\\xed', chr(237)) # Small i acute
s = s.replace('\\xee', chr(238)) # Small i circumflex
s = s.replace('\\xf1', chr(241)) # Small n tilde
s = s.replace('\\xf3', chr(243)) # Small o acute
s = s.replace('\\xf4', chr(244)) # Small o circumflex
s = s.replace('\\xf9', chr(249)) # Small u circumflex
s = s.replace('\\xfa', chr(250)) # Small u acute
s = s.replace('\\xfb', chr(251)) # u circumflex
s = s.replace('\\xc0', chr(192)) # Small A grave
s = s.replace('\\xc1', chr(193)) # Capital A acute
s = s.replace('\\xc7', chr(199)) # Capital C Cedilla
s = s.replace('\\xc9', chr(201)) # Capital E acute
s = s.replace('\\xcd', chr(205)) # Capital I acute
s = s.replace('\\xd3', chr(211)) # Capital O acute
s = s.replace('\\xda', chr(218)) # Capital U acute
s = s.replace('\\xbf', chr(191)) # Spanish Punctuation
return s
# HTML translations (callable)
def html(self,text):
s = self._html(s)
return s
# HTML translations
def _html(self,text):
s = text
s = s.replace('<', '<')
s = s.replace('>', '>')
s = s.replace('"', '"')
s = s.replace(' ', ' ')
s = s.replace('&', '&')
s = s.replace('©', '(c)')
return s
# Unicodes etc (callable)
def unicode(self,text):
s = self._convert2escape(text)
s = self._unicode(s)
return s
# Unicodes etc
def _unicode(self,text):
s = text
s = s.replace('\\u201e', '"') # ORF feed
s = s.replace('\\u3000', " ")
s = s.replace('\\u201c', '"')
s = s.replace('\\u201d', '"')
s = s.replace('\\u0153', "oe") # French oe
s = s.replace('\\u2009', " ") # Short space to space
s = s.replace('\\u2013', "-") # Long dash to minus sign
s = s.replace('\\u2019', "'") # French apostrophe
return s
# Decode greek
def decode_greek(self,text):
s = text.decode('macgreek')
return s
# Display umlats as oe ae etc
def displayUmlauts(self,value):
self.displayUmlauts = value
return
# Translate special characters (umlautes etc) to LCD values
# See standard character patterns for LCD display
def toLCD(self,sp):
s = sp
# Currency
s = s.replace(chr(156), '#') # Pound by hash
s = s.replace(chr(169), '(c)') # Copyright
# Spanish french
s = s.replace(chr(241), 'n') # Small tilde n
s = s.replace(chr(191), '?') # Small u acute to u
s = s.replace(chr(224), 'a') # Small a grave to a
s = s.replace(chr(225), 'a') # Small a acute to a
s = s.replace(chr(226), 'a') # Small a circumflex to a
s = s.replace(chr(232), 'e') # Small e grave to e
s = s.replace(chr(233), 'e') # Small e acute to e
s = s.replace(chr(234), 'e') # Small e circumflex to e
s = s.replace(chr(235), 'e') # Small e diarisis to e
s = s.replace(chr(237), 'i') # Small i acute to i
s = s.replace(chr(238), 'i') # Small i circumflex to i
s = s.replace(chr(243), 'o') # Small o acute to o
s = s.replace(chr(244), 'o') # Small o circumflex to o
s = s.replace(chr(250), 'u') # Small u acute to u
s = s.replace(chr(251), 'u') # Small u circumflex to u
s = s.replace(chr(192), 'A') # Capital A grave to A
s = s.replace(chr(193), 'A') # Capital A acute to A
s = s.replace(chr(201), 'E') # Capital E acute to E
s = s.replace(chr(205), 'I') # Capital I acute to I
s = s.replace(chr(209), 'N') # Capital N acute to N
s = s.replace(chr(211), 'O') # Capital O acute to O
s = s.replace(chr(218), 'U') # Capital U acute to U
s = s.replace(chr(220), 'U') # Capital U umlaut to U
s = s.replace(chr(231), 'c') # Small c Cedilla
s = s.replace(chr(199), 'C') # Capital C Cedilla
# German
s = s.replace(chr(196), "Ae") # A umlaut
s = s.replace(chr(214), "Oe") # O umlaut
s = s.replace(chr(220), "Ue") # U umlaut
if self.displayUmlauts:
s = s.replace(chr(223), chr(226)) # Sharp s
s = s.replace(chr(246), chr(239)) # o umlaut
s = s.replace(chr(228), chr(225)) # a umlaut
s = s.replace(chr(252), chr(245)) # u umlaut
else:
s = s.replace(chr(228), "ae") # a umlaut
s = s.replace(chr(223), "ss") # Sharp s
s = s.replace(chr(246), "oe") # o umlaut
s = s.replace(chr(252), "ue") # u umlaut
return s
# End of class