107 lines
2.4 KiB
Python
Executable File
107 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python3
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"""usage: ./gen-arabic-joining-table.py ArabicShaping.txt Scripts.txt
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Input files:
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* https://unicode.org/Public/UCD/latest/ucd/ArabicShaping.txt
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* https://unicode.org/Public/UCD/latest/ucd/Scripts.txt
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"""
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import os.path, sys
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if len (sys.argv) != 3:
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sys.exit (__doc__)
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files = [open (x, encoding='utf-8') for x in sys.argv[1:]]
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headers = [[f.readline (), f.readline ()] for f in files]
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while files[0].readline ().find ('##################') < 0:
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pass
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def read (f):
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mapping = {}
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for line in f:
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j = line.find ('#')
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if j >= 0:
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line = line[:j]
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fields = [x.strip () for x in line.split (';')]
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if len (fields) == 1:
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continue
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uu = fields[0].split ('..')
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start = int (uu[0], 16)
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if len (uu) == 1:
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end = start
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else:
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end = int (uu[1], 16)
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t = fields[1]
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for u in range (start, end + 1):
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mapping[u] = t
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return mapping
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def read_joining_uu (f):
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values = set ()
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for line in f:
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if line[0] == '#':
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continue
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fields = [x.strip () for x in line.split (';')]
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if len (fields) == 1:
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continue
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if fields[2] in {'T', 'U'}:
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continue
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values.add (int (fields[0], 16))
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return sorted (values)
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def print_has_arabic_joining (scripts, joining_uu):
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print ("static bool")
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print ("has_arabic_joining (hb_script_t script)")
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print ("{")
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print (" /* List of scripts that have data in arabic-table. */")
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print (" switch ((int) script)")
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print (" {")
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for script in sorted ({scripts[u] for u in joining_uu if scripts[u] not in {'Common', 'Inherited'}}):
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print (" case HB_SCRIPT_{}:".format (script.upper ()))
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print (" return true;")
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print ()
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print (" default:")
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print (" return false;")
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print (" }")
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print ("}")
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print ()
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print ("/* == Start of generated function == */")
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print ("/*")
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print (" * The following function is generated by running:")
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print (" *")
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print (" * ./gen-arabic-joining-list.py ArabicShaping.txt Scripts.txt")
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print (" *")
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print (" * on files with these headers:")
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print (" *")
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for h in headers:
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for l in h:
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print (" * %s" % (l.strip ()))
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print (" */")
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print ()
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print ("#ifndef HB_OT_SHAPE_COMPLEX_ARABIC_JOINING_LIST_HH")
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print ("#define HB_OT_SHAPE_COMPLEX_ARABIC_JOINING_LIST_HH")
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print ()
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print_has_arabic_joining (read (files[1]), read_joining_uu (files[0]))
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print ()
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print ("#endif /* HB_OT_SHAPE_COMPLEX_ARABIC_JOINING_LIST_HH */")
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print ()
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print ("/* == End of generated function == */")
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