1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
|
#!/usr/bin/python
# Last updated: 13-09-2006:
# added the unicode-bengali alphabet list
# added --ancient option
# fixed the problem of unit specification
# This code uses Xavier Defrang's Single-Pass Multiple Replace,
# Py Cookbook 81330 (=3.14 hardcopy) in an essential fashion.
from __future__ import nested_scopes
import string, re, sys, getopt, timing
timing.start()
version = "1.1"
usage = '''
This is mkbangtex Version %s.
It creates a BangTeX file from a Bengali document written
phonetically in Roman script. It works in two modes, which
are automatically detected:
bengali: converts anything but single-word latex
commands not enclosing within a pair of '@fn's
foreign: converts only the portions enclosed within a pair of '@bn's
CAUTION: Only ONE mode can be used in a file
A piece of text enclosed within a pair of '@b2e's is converted
from Bengali to acctented Roman script following the IAST (1912)
rules. Works in both modes.
[See accompanying documentation for further details]
---
Usage: mkbangtex [-h, --alphabet --transparent, --ancient, -o <out_file>] <in_file>
-h, --help : print this page
--alphabet : transliteration table
--transparent : transparent symbols and default positioning
--ancient : ancient Bengali --- without antastha ya
-o <out_file> : specify output file (default: <in_file>.tex)
'''
bengali_alphabet = u'''
BENGALI ALPHABET
a( \u0985 ) aa( \u0986 ) i( \u0987 ) ii( \u0988 )
u( \u0989 ) uu( \u098A ) Ri( \u098B ) \u098C (not used)
e( \u098F ) oi( \u0990 ) o( \u0993 ) ou( \u0994 )
------------------------------------------------
ka( \u0995 ) kha( \u0996 ) ga( \u0997 ) gha( \u0998 ) NG( \u0999 )
ca/cha( \u099A ) chha( \u099B ) ja( \u099C ) jha( \u099D ) NJ( \u099E )
Ta( \u099F ) Tha( \u09A0 ) Da( \u09A1 ) Dha( \u09A2 ) Na( \u09A3 )
ta( \u09A4 ) tha( \u09A5 ) da( \u09A6 ) dha( \u09A7 ) na( \u09A8 )
pa( \u09AA ) pha( \u09AB ) ba( \u09AC ) bha( \u09AD ) ma( \u09AE )
Ja( \u09AF ) ra( \u09B0 ) la( \u09B2 ) wa( \u09AC )
sha( \u09B6 ) Sha/shha( \u09B7 ) sa( \u09B8 ) ha/Ha( \u09B9 )
rh( \u09DC ) rhh( \u09DD ) _m( \u0982 ) ~h( \u0983 ) ~n( \u0981 )
------------------------------------------------
khaNDa ta: _t( \u09CE ); hasanta: _h( \u09CD ); k+shh: x antastha y: y( \u09DF )
'''
try:
opts, args = getopt.getopt(sys.argv[1:], 'ho:',
["help","outfile","transparent","alphabet","ancient"])
except getopt.GetoptError:
# print help information and exit:
print usage
sys.exit(2)
# Help menu
for o , a in opts:
if o in ("-h", "--help"):
print usage % version
sys.exit()
output = None
if o in ("--alphabet"):
print bengali_alphabet.encode('utf-8')
sys.exit()
output = None
# define input file
# Check if the file exists
try:
fi = open(args[0], 'r')
input_filename = args[0]
print '''
mkbangtex %s
Got %s. Processing ...''' % (version, input_filename)
except:
input_filename = "file"
print '''
Can\'t open %s for reading.
For help menu use: mkbangtex --help
''' % input_filename
sys.exit(0)
out_file_name = args[0]+'.tex' # initialize the ouput file
cosmetix = "True" # initialize cosmetics to TRUE
Ancient_bng = "False" # intialize Ancient_bng to FALSE
# Set up the options
for o , a in opts:
if o == "-o":
out_file_name = a
if o == "--transparent":
cosmetix = "False"
if o == "--ancient":
Ancient_bng = "True"
# define and open output file
o_file = open(out_file_name,'w')
# setting up delimiters for both modes
fnmod_delim = re.compile(r'@bengali|@bnstart|@bnend|@bn')
bnmod_delim = re.compile(r"@fn")
bndelim = re.compile(r'@@@') # change these to @@@
sndelim = re.compile(r'@b2e') # for transliteration
fndelim = re.compile(r"(\$+|@@@)", re.X) # dollar and @@@ treated together
dollar = re.compile(r"(\$)", re.X) # dollar and @@@ treated together
# define non-latex words
nonltx_word = re.compile(r"\s-?(?![\d+])\w*-?\(?\~?[\`]*\w+\S*|{o}\S+|{i}\S+", re.X)
# compile patterns to be substituted
ns_k = re.compile('n(?=k|g|x)') # nasals before k-barga
ns_c = re.compile('n(?=c|j)') # nasals before c-barga
tal_s = re.compile(r'sh(?=[bcdfghjklmnpqrstwxyz])')
# sh followed by coonsonants, (for b2e)
xX = re.compile(r"x", re.I)
unga = re.compile(r"NG")
ch = re.compile(r"ch")
jh = re.compile(r"jh")
Dh = re.compile(r"Dh")
sh = re.compile(r"sh")
ha = re.compile(r"~ha|~h")
Ri = re.compile(r"Ri")
jn = re.compile(r"jn")
onuswar = re.compile(r"_m")
rikar = re.compile(r"_r")
hasanta = re.compile(r"_h")
rh = re.compile("rh")
Rh = re.compile("Rh")
R = re.compile("R")
J = re.compile("J")
oi = re.compile("oi")
ou = re.compile("ou")
aii = re.compile(r"aii")
ai = re.compile(r"ai")
au = re.compile(r"au")
aa = re.compile(r"aa")
ao = re.compile(r"ao")
a = re.compile(r"a")
ao = re.compile(r"ao")
ae = re.compile(r"ae")
ei = re.compile(r"ei")
eo = re.compile(r"eo")
eu = re.compile(r"eu")
io = re.compile(r"io")
iu = re.compile(r"iu")
ui = re.compile(r"ui")
ii = re.compile(r"ii")
oioi = re.compile(r"oioi")
III = re.compile(r"III")
XzX = re.compile(r"XzX")
VxV = re.compile(r"VxV")
chandra = re.compile(r"~n")
ng_prob = re.compile(r"NG(?=M|r)")
ngm = re.compile(r"NG/M")
Ha = re.compile(r'~Ho|~Ha')
H = re.compile("H")
uu = re.compile("uu")
inya = re.compile("NJ")
T = re.compile('T')
D = re.compile('D')
N = re.compile('N')
Th = re.compile('Th')
shh = re.compile('shh')
vw_b = re.compile(r'\b[aeiou]+') # vowels at word-beginning
p_i = re.compile('([\^\~]|[b-dB-Df-hF-Hj-nJ-Np-tP-Tv-zV-Z])+(?=i)')
p_e = re.compile('([\^\~]|[b-dB-Df-hF-Hj-nJ-Np-tP-Tv-zV-Z])+(?=e)')
p_YA = re.compile('([\^\~]|[b-dB-Df-hF-Hj-nJ-Np-tP-Tv-zV-Z])+(?=(YA))')
# for YA-kar's bangtex symbol
p_o = re.compile('([\^\~]|[b-dB-Df-hF-Hj-nJ-Np-tP-Tv-zV-Z])+(?=o)')
p_ou = re.compile('([\^\~]|[b-df-hj-np-tv-z])+(?=ou)', re.I)
p_oi = re.compile('([\^\~]|[b-df-hj-np-tv-z])+(?=oi)', re.I)
p_begin_Ha = re.compile(r'\bh', re.X) # Ha at word-beginning
yukta_bnj = re.compile(r'[kxgcjTDNtdmnpblhHSsXZ](?=[kxgcCjTDNtTdnpbHSsXZ])')
p_tkp = re.compile('(\_*)t(?=k|x|p|f|s|X)') # t before ka,kha,pa,pha,s,X is khanda t
# consonants under which u, uu and Ri-kar need be shifted
anomaly_u = re.compile(r'(k|kR|NG|c|C|T|D|Z|t|ph|f|phR|bh|X)(?=u|{rR})|(T(?=R))')
u_kern = re.compile(r'em}u(?!u)')
uu_kern = re.compile(r'em}uu')
# DEFINING VARIOUS FUNCTIONS
#
# Functions from Defrang's code
def multiple_replace(dict, text):
""" Replace in 'text' all occurences of any key in the given
dictionary by its corresponding value. Returns the new tring."""
# Create a regular expression from the dictionary keys
regex = re.compile("(%s)" % "|".join(map(re.escape, dict.keys())))
# For each match, look-up corresponding value in dictionary
return regex.sub(lambda mo: dict[mo.string[mo.start():mo.end()]], text)
from UserDict import UserDict
class Xlator(UserDict):
""" An all-in-one multiple string substitution class """
def _make_regex(self):
""" Build a regular expression object based on the keys of
the current dictionary """
return re.compile("(%s)" % "|".join(map(re.escape, self.keys())))
def __call__(self, mo):
""" This handler will be invoked for each regex match """
# Count substitutions
self.count += 1 # Look-up string
return self[mo.string[mo.start():mo.end()]]
def xlat(self, txt):
""" Translate text, returns the modified text. """
# Reset substitution counter
self.count = 0
# Process text
return self._make_regex().sub(self, txt)
# BENGALI Functions for -fala's and -kar's
# Various -kar's
def eikar(self):
anomi = self.group()
return '\*'+anomi+'*'
def okar(self):
anome = self.group()
return '\*'+anome+'*ea'
def oukar(self):
anome = self.group()
return '\*'+anome+'*'+'e'
def oikar(self):
anome = self.group()
return '\*'+anome+'*'+'oi'
def fala(self, c_list): # Various -fala's
return dict([(x+self, x+self.upper()) for x in c_list])
def nasa(self,replmnt): # Nasals
return dict([('n'+x, replmnt+'/'+x) for x in self])
def caps(self):
capup = self.group()
return '{'+capup.upper()+'}'
def yukta(self):
ykt = self.group()
return ykt + '/'
def ukar(self): # for shifting u/uu under
anomu = self.group() # some consonants
return anomu+'{\\kern-.23em}'
def YAkar(self): # for YA-kar's bangtex symbol
anomi = self.group()
return '\*'+anomi+'*'
def y_blank_ancient(self):
y_anc = self.group()
y_blnk = y_anc.replace("y","{}")
return y_blnk
# LISTS and DICTIONARIES:
#
# Define groups of letters from the alphabet:
barga_k = list('xGX')
barga_c = list('qC')
# Ha after volwels
dict_ha = fala('h', list('aeiouAEIOU'))
# Ref
dict_rf = dict([('r'+x, 'r'+'/'+x) for x in '[kxgGcqjCTFDZNtQdznpfbvmJlHPSs]'])
# Nasals
dict_k = nasa(barga_k,'VNV')
dict_c = nasa(barga_c, 'NJ')
dict_nasa = dict()
dict_nasa.update(dict_k)
dict_nasa.update(dict_c)
## Dictionary constructing the conjunctions
dict_conj = {
"AA" : "Aa" ,
"VVV":"g/Y",
"_t" : "t//",
"nh" : "n/H",
"Nh" : "N/H",
"mh" : "HM",
"\"V" : "NN",
"VV\"" : "NNG",
"VNV" : "NG",
"th/th" : "{\char211}",
"rh/g" : "rhg",
":/:" : ":/",
r"*YA" : "*{aa}", # for YA-kar's bangtex symbol
r"YA" : "{AA}", # for YA-kar's bangtex symbol
}
# FUNCTIONS for mkbangtex
def b2e(self): # b2e : for transliteration
self = ns_k.sub('NG',self)
self = ns_c.sub('NJ',self)
self = xX.sub("kshh", self)
self = ch.sub("c", self)
self = H.sub("h", self)
self = aa.sub('{\=a}',self)
self = ii.sub('{\=\i}',self)
self = uu.sub('{\=u}', self)
self = Ri.sub('\d{ri}', self)
self = unga.sub('{\.n}', self)
self = inya.sub(r'\~{n}', self)
self = Th.sub('\d{th}', self)
self = T.sub('\d{t}', self)
self = Dh.sub('\d{dh}', self)
self = D.sub('\d{d}', self)
self = N.sub('\d n', self)
self = shh.sub('\d{s}', self)
self = sh.sub("{\\'s}", self)
self = chandra.sub("\u{n}", self)
self = onuswar.sub("\d{m}", self)
self = ha.sub("\d{h}", self)
self = hasanta.sub("", self)
self = self.replace('_t',"t")
self = rikar.sub("\d{ri}", self)
self = rh.sub(r'R', self)
#self = Rh.sub(r'\d{Rh}', self)
self = R.sub(r"\d{R}", self)
self = J.sub("y", self)
self = oi.sub("ai", self)
self = ou.sub("au", self)
return self
def bn(self): # bn : for fnmode = FALSE
self = xX.sub(r"X", self)
self = unga.sub("VNV", self)
self = ch.sub("c", self)
self = jh.sub("C", self)
self = Dh.sub("Z", self)
self = sh.sub("S", self)
self = ha.sub("~ha", self)
self = Ri.sub("{RR}", self)
self = jn.sub("VVV", self)
self = vw_b.sub(caps, self)
self = p_tkp.sub(r't//', self) # khanDa t
self = onuswar.sub('{VV"}', self) # onu:sar
self = rikar.sub('{rR}', self) # ri-fala
self = hasanta.sub(':/:', self) # hasanta
self = p_begin_Ha.sub('H', self) # Ha in middle must be before -kars
xlat = Xlator(dict_ha)
self = xlat.xlat(self)
self = ao.sub(r"aO", self)
self = ei.sub(r"eI", self)
self = eo.sub(r"eO", self)
self = eu.sub(r"eU", self)
self = io.sub(r"iO", self)
self = iu.sub(r"iU", self)
self = ui.sub(r"uI", self)
self = p_e.sub(eikar, self)
self = ii.sub('III', self)
self = p_i.sub(eikar, self) # these have to appear before
self = p_ou.sub(oukar, self)
self = p_oi.sub(oikar, self)
self = p_o.sub(okar, self) # changing a to o
self = oioi.sub(r'{oi}', self)
self = III.sub('ii', self)
self = aii.sub('aII', self)
self = ai.sub('aI',self)
self = ae.sub('aE',self)
self = au.sub('aU',self)
self = aa.sub('VxV',self)
self = ao.sub('XzX',self) # ko --> ekao ---> eka
self = a.sub('o',self)
self = XzX.sub('a',self)
self = VxV.sub('a',self)
# ORDERS IN FOLLOWING IMPORTANT
self = chandra.sub('"V', self)
xlat = Xlator(dict_nasa)
self = xlat.xlat(self)
self = yukta_bnj.sub(yukta,self)
self = xlat.xlat(self)
xlat = Xlator(dict_rf)
self = xlat.xlat(self)
xlat = Xlator(fala('r',list('bcdfghjklmpqstvwxzBCDFGHJLMPQRSTWXYZ\/')))
self = xlat.xlat(self)
xlat = Xlator(fala('y',list('bcdfghjklmnpqrstvwxyzBCDFGHJLMNPQRSTVWXYZ\/')))
# putting in r,h in this list
self = p_YA.sub(YAkar, self) # for YA-kar's bangtex symbol
self = xlat.xlat(self)
xlat = Xlator(dict_conj)
self = xlat.xlat(self)
for f in list('[mlw]'):
xlat = Xlator(fala(f,list('bcdfghjklmnpqstvwxyzBCDFGHJLMNPQRSTVWXYZ')))
self = xlat.xlat(self)
self = Ha.sub('h', self)
ng_prob = re.compile(r'NG(?=M|r)')
self = ng_prob.sub('NG/',self)
self = ngm.sub('NG/m', self) # only for the exceptional baNGmay
return self
def bn_cosmetic(self):
self = bn(self)
# cosmetic changes
# changing position of u and uu under anomalous consonants
self = self.replace(r'Yuu', 'uu{\kern-.06em}Y')
self = self.replace(r'Yu', 'u{\kern-.06em}Y')
self = anomaly_u.sub(ukar, self)
self = u_kern.sub('em}u{\\kern.23em}', self)
self = uu_kern.sub('em}uu{\\kern.23em}', self)
self = self.replace(r'{\kern-.23em}{rR}','{\\kern-.23em}{rR}{\\kern.23em}')
self = self.replace(r'XW', 'X\\kern-.25em\lower.2em\hbox{W}\\kern.25em')
# for xwa need to lower ba-fala
self = self.replace(r'TW', 'T\\kern-.1em\lower.3em\hbox{W}\\kern.1em')
# for Twa need to position ba-fala
self = self.replace(r'T{\kern-.23em}Ru','''T{\kern-.2em}\lower.1em\hbox{R}\lower.15em
\hbox{u}\kern.2em''')
# for Tru you need to lower R & u
# changing shhT and shhTha from default to more orthodox forms
self = self.replace(r'Sh/Th', '{\char178\kern-2pt\char70}')
self = self.replace(r'Sh/T', '{\char178\kern0pt\char84}')
return self
def bnfn(self): # for using in fnmode as a function
return bn(self.group()) # in a re.sub statement
def bnfn_cosmetic(self): # for using in fnmode as a function
return bn_cosmetic(self.group()) # in a re.sub statement
# SUBSTITUTIONS :
if __name__ == "__main__":
text = fi.read() # Read text --- treating the whole
# content as a SINGLE string
fn_test = re.search(fnmod_delim, text)
bn_test = re.search(bnmod_delim, text)
fnmode = ""
if fn_test:
fnmode = "True"
print "fnmode selected."
elif bn_test:
fnmode = "False"
print "bnmode selected."
# Now translate the text
# The delimiters are handled differently in BNMODE and FNMODE.
# Hence, the delimiter substitution and transliteration
# are to be performed inside the loops.
if fnmode == "True": # case: FOREIGN MODE: START
# Manipulating delimiters
text = fnmod_delim.sub("@@@", text)
# first do the roman transliteration, if any
sn_list = sndelim.split(text)
for i in range(len(sn_list)):
if i%2 == 0:
pass
else:
text = sn_list[i]
text = b2e(text).strip()
sn_list[i] = text
text = "".join(sn_list)
big_list = bndelim.split(text)
for i in range(len(big_list)):
if i%2 == 0 :
pass
else:
text = big_list[i]
smal_list = dollar.split(text)
for j in range(len(smal_list)):
if j%4 == 0 : # Recall that for dollars
text = smal_list[j] # we have kept the delimiters
if Ancient_bng == "True": # for --ancient option
text = text.replace("y","{}")
else:
pass
if cosmetix == "False": # for --transparent option
text = bn(text)
else:
text = bn_cosmetic(text)
smal_list[j] = text
text = "".join(smal_list)
big_list[i] = text.strip()
text = "".join(big_list) # FOREIGN MODE: END
else: # case: BNMODE: START
# Manipulating delimiters
text = sndelim.sub("@b2e @@@ ", text)
text = bnmod_delim.sub("@@@", text)
# first do the roman transliteration, if any
sn_list = sndelim.split(text)
for i in range(len(sn_list)):
if i%2 == 0:
pass
else:
text = sn_list[i]
text = b2e(text).strip()
sn_list[i] = text
text = "".join(sn_list)
big_list = fndelim.split(text)
for i in range(len(big_list)):
if i%4 == 0 :
text = big_list[i]
if Ancient_bng == "True": # for --ancient option
text = nonltx_word.sub(y_blank_ancient, text)
else:
pass
if cosmetix == "False": # for --transparent option
text = nonltx_word.sub(bnfn, text)
else:
text = nonltx_word.sub(bnfn_cosmetic, text)
big_list[i] = text.strip("\n")
text = "".join(big_list)
# now split and join again to get rid of the delimiter @@@
text = "".join(text.split("@@@")) # BNMODE: END
# write in the output file
o_file.write(text)
timing.finish()
# on standard output
time_taken = float(timing.micro()) / 1000000
print "Processed %s in %ss. Output written in %s." % (input_filename, time_taken, out_file_name )
|