gfx/harfbuzz/src/gen-emoji-table.py

   1 #!/usr/bin/env python3
   2
   3 """usage: ./gen-emoji-table.py emoji-data.txt emoji-test.txt
   4
   5 Input file:
   6 * https://www.unicode.org/Public/UCD/latest/ucd/emoji/emoji-data.txt
   7 * https://www.unicode.org/Public/emoji/latest/emoji-test.txt
   8 """
   9
  10 import sys
  11 from collections import OrderedDict
  12 import packTab
  13
  14 if len (sys.argv) != 3:
  15         sys.exit (__doc__)
  16
  17 f = open(sys.argv[1])
  18 header = [f.readline () for _ in range(10)]
  19
  20 ranges = OrderedDict()
  21 for line in f.readlines():
  22         line = line.strip()
  23         if not line or line[0] == '#':
  24                 continue
  25         rang, typ = [s.strip() for s in line.split('#')[0].split(';')[:2]]
  26
  27         rang = [int(s, 16) for s in rang.split('..')]
  28         if len(rang) > 1:
  29                 start, end = rang
  30         else:
  31                 start = end = rang[0]
  32
  33         if typ not in ranges:
  34                 ranges[typ] = []
  35         if ranges[typ] and ranges[typ][-1][1] == start - 1:
  36                 ranges[typ][-1] = (ranges[typ][-1][0], end)
  37         else:
  38                 ranges[typ].append((start, end))
  39
  40
  41
  42 print ("/* == Start of generated table == */")
  43 print ("/*")
  44 print (" * The following tables are generated by running:")
  45 print (" *")
  46 print (" *   ./gen-emoji-table.py emoji-data.txt")
  47 print (" *")
  48 print (" * on file with this header:")
  49 print (" *")
  50 for l in header:
  51         print (" * %s" % (l.strip()))
  52 print (" */")
  53 print ()
  54 print ("#ifndef HB_UNICODE_EMOJI_TABLE_HH")
  55 print ("#define HB_UNICODE_EMOJI_TABLE_HH")
  56 print ()
  57 print ('#include "hb-unicode.hh"')
  58 print ()
  59
  60 for typ, s in ranges.items():
  61         if typ != "Extended_Pictographic": continue
  62
  63         arr = dict()
  64         for start,end in s:
  65                 for i in range(start, end + 1):
  66                         arr[i] = 1
  67
  68         sol = packTab.pack_table(arr, 0, compression=9)
  69         code = packTab.Code('_hb_emoji')
  70         sol.genCode(code, 'is_'+typ)
  71         code.print_c(linkage='static inline')
  72         print()
  73
  74 print ()
  75 print ("#endif /* HB_UNICODE_EMOJI_TABLE_HH */")
  76 print ()
  77 print ("/* == End of generated table == */")
  78
  79
  80 # Generate test file.
  81 sequences = []
  82 with open(sys.argv[2]) as f:
  83     for line in f.readlines():
  84         if "#" in line:
  85             line = line[:line.index("#")]
  86         if ";" in line:
  87             line = line[:line.index(";")]
  88         line = line.strip()
  89         line = line.split(" ")
  90         if len(line) < 2:
  91             continue
  92         sequences.append(line)
  93
  94 with open("../test/shape/data/in-house/tests/emoji-clusters.tests", "w") as f:
  95     for sequence in sequences:
  96         f.write("../fonts/AdobeBlank2.ttf;--no-glyph-names --no-positions --font-funcs=ot")
  97         f.write(";" + ",".join(sequence))
  98         f.write(";[" + "|".join("1=0" for c in sequence) + "]\n")