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[USE] Start moving Unicode-to-USE mapping into Python code

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pull/122/head
Behdad Esfahbod 9 years ago
parent eb74535cc2
commit 20e246e674
3 changed files with 169 additions and 12 deletions
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  1. 2
      src/Makefile.am
  2. 176
      src/gen-use-table.py
  3. 3
      src/hb-ot-shape-complex-use-table.cc

2
src/Makefile.am
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@ -294,7 +294,7 @@ indic-table: gen-indic-table.py IndicSyllabicCategory-7.0.0.txt IndicMatraCatego
$(AM_V_GEN) $(builddir)/$^ > hb-ot-shape-complex-indic-table.cc \
|| ($(RM) hb-ot-shape-complex-indic-table.cc; false)
use-table: gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt Blocks.txt
use-table: gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt UnicodeData.txt Blocks.txt
$(AM_V_GEN) $(builddir)/$^ > hb-ot-shape-complex-use-table.cc \
|| ($(RM) hb-ot-shape-complex-use-table.cc; false)

176
src/gen-use-table.py
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@ -2,15 +2,16 @@
import sys
if len (sys.argv) != 4:
print >>sys.stderr, "usage: ./gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt Blocks.txt"
if len (sys.argv) != 5:
print >>sys.stderr, "usage: ./gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt UnicodeData.txt Blocks.txt"
sys.exit (1)
BLACKLISTED_BLOCKS = ["Thai", "Lao", "Tibetan"]
files = [file (x) for x in sys.argv[1:]]
headers = [[f.readline () for i in range (2)] for f in files]
headers = [[f.readline () for i in range (2)] for j,f in enumerate(files) if j != 2]
headers.append (["UnicodeData.txt does not have a header."])
data = [{} for f in files]
values = [{} for f in files]
@ -32,29 +33,184 @@ for i, f in enumerate (files):
else:
end = int (uu[1], 16)
t = fields[1]
t = fields[1 if i != 2 else 2]
for u in range (start, end + 1):
data[i][u] = t
values[i][t] = values[i].get (t, 0) + end - start + 1
# Merge data into one dict:
defaults = ('Other', 'Not_Applicable', 'No_Block')
defaults = ('Other', 'Not_Applicable', 'Cn', 'No_Block')
for i,v in enumerate (defaults):
values[i][v] = values[i].get (v, 0) + 1
combined = {}
for i,d in enumerate (data):
for u,v in d.items ():
if i == 2 and not u in combined:
if i >= 2 and not u in combined:
continue
if not u in combined:
combined[u] = list (defaults)
combined[u][i] = v
combined = {k:v for k,v in combined.items() if v[2] not in BLACKLISTED_BLOCKS}
combined = {k:v for k,v in combined.items() if v[3] not in BLACKLISTED_BLOCKS}
data = combined
del combined
num = len (data)
property_names = [
# General_Category
'Cc', 'Cf', 'Cn', 'Co', 'Cs', 'Ll', 'Lm', 'Lo', 'Lt', 'Lu', 'Mc',
'Me', 'Mn', 'Nd', 'Nl', 'No', 'Pc', 'Pd', 'Pe', 'Pf', 'Pi', 'Po',
'Ps', 'Sc', 'Sk', 'Sm', 'So', 'Zl', 'Zp', 'Zs',
# Indic_Syllabic_Category
'Bindu',
'Visarga',
'Avagraha',
'Nukta',
'Virama',
'Pure_Killer',
'Invisible_Stacker',
'Vowel_Independent',
'Vowel_Dependent',
'Vowel',
'Consonant_Placeholder',
'Consonant',
'Consonant_Dead',
'Consonant_With_Stacker',
'Consonant_Prefixed',
'Consonant_Preceding_Repha',
'Consonant_Succeeding_Repha',
'Consonant_Subjoined',
'Consonant_Medial',
'Consonant_Final',
'Consonant_Head_Letter',
'Modifying_Letter',
'Tone_Letter',
'Tone_Mark',
'Gemination_Mark',
'Cantillation_Mark',
'Register_Shifter',
'Syllable_Modifier',
'Consonant_Killer',
'Non_Joiner',
'Joiner',
'Number_Joiner',
'Number',
'Brahmi_Joining_Number',
# Indic_Positional_Category
'Right',
'Left',
'Visual_Order_Left',
'Left_And_Right',
'Top',
'Bottom',
'Top_And_Bottom',
'Top_And_Right',
'Top_And_Left',
'Top_And_Left_And_Right',
'Bottom_And_Right',
'Top_And_Bottom_And_Right',
'Overstruck',
]
class PropertyValue(object):
def __init__(self, name_):
self.name = name_
property_values = {}
for name in property_names:
value = PropertyValue(name)
assert value not in property_values
assert value not in globals()
property_values[name] = value
globals().update(property_values)
def is_BASE(U, UISC, UGC):
return (UISC in [Number, Consonant, Consonant_Head_Letter, Consonant_Placeholder, Tone_Letter] or
(UGC == Lo and UISC in [Avagraha, Bindu, Consonant_Final, Consonant_Medial,
Consonant_Subjoined, Vowel, Vowel_Dependent]))
def is_BASE_VOWEL(U, UISC, UGC):
return UISC == Vowel_Independent
def is_BASE_IND(U, UISC, UGC):
return (UISC in [Consonant_Dead, Modifying_Letter] or UGC == Po)
def is_BASE_NUM(U, UISC, UGC):
return UISC == Brahmi_Joining_Number
def is_BASE_OTHER(U, UISC, UGC):
return U in [0x00A0, 0x00D7, 0x2015, 0x2022, 0x25CC,
0x25FB, 0x25FC, 0x25FD, 0x25FE]
def is_CGJ(U, UISC, UGC):
return U == 0x034F
def is_CONS_FINAL(U, UISC, UGC):
return ((UISC == Consonant_Final and UGC != Lo) or
UISC == Consonant_Succeeding_Repha)
def is_CONS_FINAL_MOD(U, UISC, UGC):
return UISC in [Consonant_Final_Modifier, Syllable_Modifier]
def is_CONS_MED(U, UISC, UGC):
return UISC == Consonant_Medial and UGC != Lo
def is_CONS_MOD(U, UISC, UGC):
return UISC in [Nukta, Gemination_Mark, Consonant_Killer]
def is_CONS_SUB(U, UISC, UGC):
return UISC == Consonant_Subjoined
def is_HALANT(U, UISC, UGC):
return UISC in [Virama, Invisible_Stacker]
def is_HALANT_NUM(U, UISC, UGC):
return UISC == Number_Joiner
def is_ZWNJ(U, UISC, UGC):
return UISC == Non_Joiner
def is_ZWJ(U, UISC, UGC):
return UISC == Joiner
def is_Word_Joiner(U, UISC, UGC):
return U == 0x2060
def is_OTHER(U, UISC, UGC):
return UGC == Zs # or any other SCRIPT_COMMON characters
def is_Reserved(U, UISC, UGC):
return UGC == 'Cn'
def is_REPHA(U, UISC, UGC):
return UISC == Consonant_Preceding_Repha
def is_SYM(U, UISC, UGC):
return UGC in [So, Sc] or UISC == Symbol_Letter
def is_SYM_MOD(U, UISC, UGC):
return U in [0x1B6B, 0x1B6C, 0x1B6D, 0x1B6E, 0x1B6F, 0x1B70, 0x1B71, 0x1B72, 0x1B73]
def is_VARIATION_SELECTOR(U, UISC, UGC):
return 0xFE00 <= U <= 0xFE0F
def is_VOWEL(U, UISC, UGC):
return (UISC == Pure_Killer or
(UGC != Lo and UISC in [Vowel, Vowel_Dependent]))
def is_VOWEL_MOD(U, UISC, UGC):
return (UISC in [Tone_Mark, Cantillation_Mark, Register_Shifter, Visarga] or
(UGC != Lo and UISC == Bindu))
use_mapping = {
'B': is_BASE,
'IV': is_BASE_VOWEL,
'IND': is_BASE_IND,
'N': is_BASE_NUM,
'GB': is_BASE_OTHER,
'CGJ': is_CGJ,
'F': is_CONS_FINAL,
'FM': is_CONS_FINAL_MOD,
'M': is_CONS_MED,
'CM': is_CONS_MOD,
'SUB': is_CONS_SUB,
'H': is_HALANT,
'HN': is_HALANT_NUM,
'ZWNJ': is_ZWNJ,
'ZWJ': is_ZWJ,
'WJ': is_Word_Joiner,
'O': is_OTHER,
'Rsv': is_Reserved,
'R': is_REPHA,
'S': is_SYM,
'SM': is_SYM_MOD,
'VS': is_VARIATION_SELECTOR,
'V': is_VOWEL,
'VM': is_VOWEL_MOD,
}
#data = map_to_use(data)
# Remove the outliers
singles = {}
for u in [0x25CC, 0x1107F]:
@ -65,7 +221,7 @@ print "/* == Start of generated table == */"
print "/*"
print " * The following table is generated by running:"
print " *"
print " * ./gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt Blocks.txt"
print " * ./gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt UnicodeData.txt Blocks.txt"
print " *"
print " * on files with these headers:"
print " *"
@ -164,11 +320,11 @@ print "static const USE_TABLE_ELEMENT_TYPE use_table[] = {"
for u in uu:
if u <= last:
continue
block = data[u][2]
block = data[u][3]
start = u//8*8
end = start+1
while end in uu and block == data[end][2]:
while end in uu and block == data[end][3]:
end += 1
end = (end-1)//8*8 + 7

3
src/hb-ot-shape-complex-use-table.cc
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@ -2,7 +2,7 @@
/*
* The following table is generated by running:
*
* ./gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt Blocks.txt
* ./gen-use-table.py IndicSyllabicCategory.txt IndicPositionalCategory.txt UnicodeData.txt Blocks.txt
*
* on files with these headers:
*
@ -12,6 +12,7 @@
* # Date: 2015-05-12, 10:00:00 GMT [RP, KW, LI]
* # Blocks-8.0.0.txt
* # Date: 2014-11-10, 23:04:00 GMT [KW]
* UnicodeData.txt does not have a header.
*/
#include "hb-ot-shape-complex-use-private.hh"

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