inspiral.py: add iir bank string parser

gstlal-inspiral/python/inspiral.py

@@ -178,7 +178,7 @@ def parse_svdbank_string(bank_string):
 	"""
 	parses strings of form 
 	
-	H1:bank1.xml,H2:bank2.xml,L1:bank3.xml,H2:bank4.xml,... 
+	H1:bank1.xml,H2:bank2.xml,L1:bank3.xml
 	
 	into a dictionary of lists of bank files.
 	"""
@@ -193,6 +193,23 @@ def parse_svdbank_string(bank_string):
 	return out
 
 
+def parse_iirbank_string(bank_string):
+	"""
+	parses strings of form 
+	
+	H1:bank1.xml,H2:bank2.xml,L1:bank3.xml,H2:bank4.xml,... 
+	
+	into a dictionary of lists of bank files.
+	"""
+	out = {}
+	if bank_string is None:
+		return out
+	for b in bank_string.split(','):
+		ifo, bank = b.split(':')
+		out.setdefault(ifo, []).append(bank)
+	return out
+
+
 def parse_bank_files(svd_banks, verbose, snr_threshold = None):
 	"""
 	given a dictionary of lists of svd template bank file names parse them