kastdeur/bwwtolily
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Code Issues Releases Activity

Added Tuplet Support

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Closes #1
This commit is contained in:
Eric Teunis de Boone 2019-02-11 01:04:10 +01:00
parent 9a43ba9688
commit ab2ad69d75
1 changed files with 33 additions and 7 deletions
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40
bwwtolily.py
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@ -24,7 +24,9 @@ class bwwtolily :
self.most_recent_note = 0 self.most_recent_note = 0
self.in_note_group=False self.in_note_group=False
self.slur_tie_pending = False self.slur_tie_pending = False
self.tuplet_pending = False
self.last_group_close=0 self.last_group_close=0
'''compile a few regex queries''' '''compile a few regex queries'''
#make a regex to determine if something is a lilypond note #make a regex to determine if something is a lilypond note
self.regex_lilynote= re.compile("[abcdefgAG][0-9]*") self.regex_lilynote= re.compile("[abcdefgAG][0-9]*")
@ -52,12 +54,16 @@ class bwwtolily :
self.regex_strike = re.compile("str([h|l]*[abcdefg])") self.regex_strike = re.compile("str([h|l]*[abcdefg])")
#a regex to find dots #a regex to find dots
self.regex_dot = re.compile("'[h|l]*[abcdefg]") self.regex_dot = re.compile("'[h|l]*[abcdefg]")
#a regex to find old note ties #a regex to find old note ties
self.regex_old_tie = re.compile("\^t[h|l]?[abcdfg]") self.regex_old_tie = re.compile("\^t[h|l]?[abcdfg]")
#a regex to find tuplets
self.regex_tuplet = re.compile("\^(?P<upper>[0-9])(?P<lower>[0-9]?)(?P<type>[se])")
#a regex to find sub repeats #a regex to find sub repeats
self.regex_sub_repeat = re.compile("'([0-9]+)") self.regex_sub_repeat = re.compile("'([0-9]+)")
#a regex to find note slurs, not slur embellishments #a regex to find note slurs, not slur embellishments
self.regex_slur = re.compile("\^(?P<note_count>[0-9])(?P<end_note>[a-z]*)") self.regex_slur = re.compile("\^(?P<note_count>[0-9])(?P<end_note>[a-z]*)")
#we need a list to ignore #we need a list to ignore
self.ignore_elements = ("sharpf","sharpc","space","&", "C") self.ignore_elements = ("sharpf","sharpc","space","&", "C")
#create a dictionary of common bww elements and their lily counterparts #create a dictionary of common bww elements and their lily counterparts
@ -288,11 +294,31 @@ class bwwtolily :
self.tune_elements[self.most_recent_note]+="." self.tune_elements[self.most_recent_note]+="."
return return
#is the element an old note tie #is the element an old note tie
old_tie_result = self.regex_old_tie.search(element) old_tie_result = self.regex_old_tie.search(element)
if old_tie_result: if old_tie_result:
self.tune_elements[self.most_recent_note]+="~" self.tune_elements[self.most_recent_note]+="~"
return return
#is the element a tuplet
tuplet_result = self.regex_tuplet.search(element)
if tuplet_result:
upper = tuplet_result.group("upper")
lower = tuplet_result.group("lower")
start = tuplet_result.group("type")
if start == 's':
if not lower:
lower = 2
fraction = "{}/{}".format(upper, lower)
self.tune_elements.append("\\tuplet {} {{".format(fraction))
elif start == 'e':
self.tune_elements.append("}")
return
#is the element a slur? #is the element a slur?
slur_result = self.regex_slur.search(element) slur_result = self.regex_slur.search(element)