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#!/usr/bin/env python3
"""Generates the code for a sorted unicode range array as used in hb-ot-os2-unicode-ranges.hh
Input is a tab seperated list of unicode ranges from the otspec
(https://docs.microsoft.com/en-us/typography/opentype/spec/os2#ur).
"""
import re
import sys
print ("""static OS2Range _hb_os2_unicode_ranges[] =
{""")
args = sys.argv[1:]
input_file = args[0]
with open (input_file, mode="r", encoding="utf-8") as f:
all_ranges = []
current_bit = 0
while True:
line = f.readline().strip()
if not line:
break
fields = re.split(r'\t+', line)
if len(fields) == 3:
current_bit = fields[0]
fields = fields[1:]
elif len(fields) > 3:
raise Exception("bad input :(.")
name = fields[0]
ranges = re.split("-", fields[1])
if len(ranges) != 2:
raise Exception("bad input :(.")
v = tuple((int(ranges[0], 16), int(ranges[1], 16), int(current_bit), name))
all_ranges.append(v)
all_ranges = sorted(all_ranges, key=lambda t: t[0])
for ranges in all_ranges:
start = ("0x%X" % ranges[0]).rjust(8)
end = ("0x%X" % ranges[1]).rjust(8)
bit = ("%s" % ranges[2]).rjust(3)
print (" {%s, %s, %s}, // %s" % (start, end, bit, ranges[3]))
print ("""};""")
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