-#!/usr/bin/python
+#!/usr/bin/env python
-import sys
-import os.path
+from __future__ import print_function, division, absolute_import
-if len (sys.argv) != 3:
- print >>sys.stderr, "usage: ./gen-arabic-table.py ArabicShaping.txt UnicodeData.txt"
+import io, os.path, sys
+
+if len (sys.argv) != 4:
+ print ("usage: ./gen-arabic-table.py ArabicShaping.txt UnicodeData.txt Blocks.txt", file=sys.stderr)
sys.exit (1)
-files = [file (x) for x in sys.argv[1:]]
+files = [io.open (x, encoding='utf-8') for x in sys.argv[1:]]
-headers = [[files[0].readline (), files[0].readline ()]]
+headers = [[files[0].readline (), files[0].readline ()], [files[2].readline (), files[2].readline ()]]
headers.append (["UnicodeData.txt does not have a header."])
while files[0].readline ().find ('##################') < 0:
pass
+blocks = {}
+def read_blocks(f):
+ global blocks
+ for line in f:
-def print_joining_table(f):
+ j = line.find ('#')
+ if j >= 0:
+ line = line[:j]
+
+ fields = [x.strip () for x in line.split (';')]
+ if len (fields) == 1:
+ continue
+
+ uu = fields[0].split ('..')
+ start = int (uu[0], 16)
+ if len (uu) == 1:
+ end = start
+ else:
+ end = int (uu[1], 16)
+
+ t = fields[1]
- print
- print "static const uint8_t joining_table[] ="
- print "{"
+ for u in range (start, end + 1):
+ blocks[u] = t
- min_u = 0x110000
- max_u = 0
- num = 0
- last = -1
- block = ''
+def print_joining_table(f):
+
+ values = {}
for line in f:
if line[0] == '#':
- if line.find (" characters"):
- block = line[2:].strip ()
continue
fields = [x.strip () for x in line.split (';')]
continue
u = int (fields[0], 16)
- if u == 0x200C or u == 0x200D:
- continue
- if u < last:
- raise Exception ("Input data character not sorted", u)
- min_u = min (min_u, u)
- max_u = max (max_u, u)
- num += 1
-
- if block:
- print "\n /* %s */\n" % block
- block = ''
-
- if last != -1:
- last += 1
- while last < u:
- print " JOINING_TYPE_X, /* %04X */" % last
- last += 1
- else:
- last = u
if fields[3] in ["ALAPH", "DALATH RISH"]:
value = "JOINING_GROUP_" + fields[3].replace(' ', '_')
else:
value = "JOINING_TYPE_" + fields[2]
- print " %s, /* %s */" % (value, '; '.join(fields))
-
- print
- print "};"
- print
- print "#define JOINING_TABLE_FIRST 0x%04X" % min_u
- print "#define JOINING_TABLE_LAST 0x%04X" % max_u
- print
-
- occupancy = num * 100 / (max_u - min_u + 1)
- # Maintain at least 40% occupancy in the table */
- if occupancy < 40:
- raise Exception ("Table too sparse, please investigate: ", occupancy)
+ values[u] = value
+
+ short_value = {}
+ for value in set([v for v in values.values()] + ['JOINING_TYPE_X']):
+ short = ''.join(x[0] for x in value.split('_')[2:])
+ assert short not in short_value.values()
+ short_value[value] = short
+
+ print ()
+ for value,short in short_value.items():
+ print ("#define %s %s" % (short, value))
+
+ uu = sorted(values.keys())
+ num = len(values)
+ all_blocks = set([blocks[u] for u in uu])
+
+ last = -100000
+ ranges = []
+ for u in uu:
+ if u - last <= 1+16*5:
+ ranges[-1][-1] = u
+ else:
+ ranges.append([u,u])
+ last = u
+
+ print ()
+ print ("static const uint8_t joining_table[] =")
+ print ("{")
+ last_block = None
+ offset = 0
+ for start,end in ranges:
+
+ print ()
+ print ("#define joining_offset_0x%04xu %d" % (start, offset))
+
+ for u in range(start, end+1):
+
+ block = blocks.get(u, last_block)
+ value = values.get(u, "JOINING_TYPE_X")
+
+ if block != last_block or u == start:
+ if u != start:
+ print ()
+ if block in all_blocks:
+ print ("\n /* %s */" % block)
+ else:
+ print ("\n /* FILLER */")
+ last_block = block
+ if u % 32 != 0:
+ print ()
+ print (" /* %04X */" % (u//32*32), " " * (u % 32), end="")
+
+ if u % 32 == 0:
+ print ()
+ print (" /* %04X */ " % u, end="")
+ print ("%s," % short_value[value], end="")
+ print ()
+
+ offset += end - start + 1
+ print ()
+ occupancy = num * 100. / offset
+ print ("}; /* Table items: %d; occupancy: %d%% */" % (offset, occupancy))
+ print ()
+
+ page_bits = 12;
+ print ()
+ print ("static unsigned int")
+ print ("joining_type (hb_codepoint_t u)")
+ print ("{")
+ print (" switch (u >> %d)" % page_bits)
+ print (" {")
+ pages = set([u>>page_bits for u in [s for s,e in ranges]+[e for s,e in ranges]])
+ for p in sorted(pages):
+ print (" case 0x%0Xu:" % p)
+ for (start,end) in ranges:
+ if p not in [start>>page_bits, end>>page_bits]: continue
+ offset = "joining_offset_0x%04xu" % start
+ print (" if (hb_in_range<hb_codepoint_t> (u, 0x%04Xu, 0x%04Xu)) return joining_table[u - 0x%04Xu + %s];" % (start, end, start, offset))
+ print (" break;")
+ print ("")
+ print (" default:")
+ print (" break;")
+ print (" }")
+ print (" return X;")
+ print ("}")
+ print ()
+ for value,short in short_value.items():
+ print ("#undef %s" % (short))
+ print ()
def print_shaping_table(f):
shapes[items[0]] = {}
shapes[items[0]][shape] = c
- print
- print "static const uint16_t shaping_table[][4] ="
- print "{"
+ print ()
+ print ("static const uint16_t shaping_table[][4] =")
+ print ("{")
keys = shapes.keys ()
min_u, max_u = min (keys), max (keys)
for u in range (min_u, max_u + 1):
- s = [shapes[u][shape] if u in shapes and shape in shapes[u] else u
+ s = [shapes[u][shape] if u in shapes and shape in shapes[u] else 0
for shape in ['initial', 'medial', 'final', 'isolated']]
- value = ', '.join ("0x%04X" % c for c in s)
- print " {%s}, /* U+%04X %s */" % (value, u, names[u] if u in names else "")
+ value = ', '.join ("0x%04Xu" % c for c in s)
+ print (" {%s}, /* U+%04X %s */" % (value, u, names[u] if u in names else ""))
- print "};"
- print
- print "#define SHAPING_TABLE_FIRST 0x%04X" % min_u
- print "#define SHAPING_TABLE_LAST 0x%04X" % max_u
- print
+ print ("};")
+ print ()
+ print ("#define SHAPING_TABLE_FIRST 0x%04Xu" % min_u)
+ print ("#define SHAPING_TABLE_LAST 0x%04Xu" % max_u)
+ print ()
ligas = {}
for pair in ligatures.keys ():
ligas[liga[0]] = []
ligas[liga[0]].append ((liga[1], c))
max_i = max (len (ligas[l]) for l in ligas)
- print
- print "static const struct {"
- print " uint16_t first;"
- print " struct {"
- print " uint16_t second;"
- print " uint16_t ligature;"
- print " } ligatures[%d];" % max_i
- print "} ligature_table[] ="
- print "{"
- keys = ligas.keys ()
- keys.sort ()
- for first in keys:
-
- print " { 0x%04X, {" % (first)
+ print ()
+ print ("static const struct ligature_set_t {")
+ print (" uint16_t first;")
+ print (" struct ligature_pairs_t {")
+ print (" uint16_t second;")
+ print (" uint16_t ligature;")
+ print (" } ligatures[%d];" % max_i)
+ print ("} ligature_table[] =")
+ print ("{")
+ for first in sorted (ligas.keys ()):
+
+ print (" { 0x%04Xu, {" % (first))
for liga in ligas[first]:
- print " { 0x%04X, 0x%04X }, /* %s */" % (liga[0], liga[1], names[liga[1]])
- print " }},"
+ print (" { 0x%04Xu, 0x%04Xu }, /* %s */" % (liga[0], liga[1], names[liga[1]]))
+ print (" }},")
- print "};"
- print
+ print ("};")
+ print ()
-print "/* == Start of generated table == */"
-print "/*"
-print " * The following table is generated by running:"
-print " *"
-print " * ./gen-arabic-table.py ArabicShaping.txt UnicodeData.txt"
-print " *"
-print " * on files with these headers:"
-print " *"
+print ("/* == Start of generated table == */")
+print ("/*")
+print (" * The following table is generated by running:")
+print (" *")
+print (" * ./gen-arabic-table.py ArabicShaping.txt UnicodeData.txt Blocks.txt")
+print (" *")
+print (" * on files with these headers:")
+print (" *")
for h in headers:
for l in h:
- print " * %s" % (l.strip())
-print " */"
-print
-print "#ifndef HB_OT_SHAPE_COMPLEX_ARABIC_TABLE_HH"
-print "#define HB_OT_SHAPE_COMPLEX_ARABIC_TABLE_HH"
-print
-
+ print (" * %s" % (l.strip()))
+print (" */")
+print ()
+print ("#ifndef HB_OT_SHAPE_COMPLEX_ARABIC_TABLE_HH")
+print ("#define HB_OT_SHAPE_COMPLEX_ARABIC_TABLE_HH")
+print ()
+
+read_blocks (files[2])
print_joining_table (files[0])
print_shaping_table (files[1])
-print
-print "#endif /* HB_OT_SHAPE_COMPLEX_ARABIC_TABLE_HH */"
-print
-print "/* == End of generated table == */"
-
+print ()
+print ("#endif /* HB_OT_SHAPE_COMPLEX_ARABIC_TABLE_HH */")
+print ()
+print ("/* == End of generated table == */")
projects / platform / upstream / harfbuzz.git / blobdiff