doc: Use double backslash in regex

Closes: #15
Signed-off-by: Tormod Volden <[email protected]>
Signed-off-by: Jaroslav Kysela <[email protected]>

Author: tormodvolden

doc/alsa-python-coverage.py

@@ -56,11 +56,11 @@
 #    + Group(("(" + args + Optional("...") + ")") | "{")
 
 # common asoundlib parser
-snd_ = Regex("snd_[\w_]+")
-SND_ = Regex("SND_[\w_]+")
+snd_ = Regex("snd_[\\w_]+")
+SND_ = Regex("SND_[\\w_]+")
 
 # pyalsa/alsaseq.c parser
-alsaseq_SEQ = Regex("SEQ_[\w_]+")
+alsaseq_SEQ = Regex('SEQ_[\\w_]+')
 alsaseq_Constant = \
     "TCONSTADD(module," + alsaseq_SEQ + "," + quotedString + "," + alsaseq_SEQ
 alsaseq_typedef = \