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# xcp.py: XeTeX Chinese Proprocessor 0.2.2
# Changelog:
# 0.2.2: prevent unnecessary processing with '@'
# before '{'
# 0.2.1: minor upgrade to fix comment handling
import codecs, sys
LINE_END = '\n'
MARK_START = '\\begin{document}'
MARK_END = '\\end{document}'
VERB_START = '\\begin{verbatim}'
VERB_END = '\\end{verbatim}'
try:
f = codecs.open(sys.argv[1], encoding='utf-8')
except IOError:
print "file", sys.argv[1], "no exist"
sys.exit()
start = 0
stdout = sys.stdout
def output(x):
stdout.write(x.encode('utf-8'))
def output_line_end():
output(LINE_END)
def isch(x):
# Punct & Radicals
if x >= 0x2e80 and x <= 0x33ff:
return 1
# Fullwidth Latin Characters
if x >= 0xff00 and x <= 0xffef:
return 1
# CJK Unified Ideographs &
# CJK Unified Ideographs Extension A
if x >= 0x4e00 and x <= 0x9fbb:
return 1
# CJK Compatibility Ideographs
if x >= 0xf900 and x <= 0xfad9:
return 1
# CJK Unified Ideographs Extension B
if x >= 0x20000 and x <= 0x2a6d6:
return 1
# CJK Compatibility Supplement
if x >= 0x2f8000 and x <= 0x2fa1d:
return 1
return 0
ch = 0
b = 0
lc = 0
comment = 0
enable = 1
level = 0
verbatim = 0
for line in f:
if verbatim == 0 and line.find(MARK_END) != -1:
output_line_end()
start = 0
if start > 0:
if line.find(VERB_START) != -1:
verbatim = 1
if line.find(VERB_END) != -1:
verbatim = 0
# if last \zh{ has not yet been closed
if ch == 1 and (isch(ord(line[0])) == 0 or line[0] == '\n'):
ch = 0
output('}')
if isch(lc) and isch(ord(line[0])):
output('%')
if b == 0:
b = 1
else:
output_line_end()
# if line.find('\\XeTeX') != -1:
# output(line[:-1])
# continue
if line[0] == LINE_END:
lc = ord(LINE_END)
line_len = len(line)
for i in range(line_len):
c = line[i]
if c == '%' and lc != ord('\\'):
comment = 1
if c == LINE_END:
comment = 0
break
n = ord(c)
if comment == 1:
output(c)
lc = n
continue
if c == '@' and i + 1 < line_len and line[i + 1] == '{':
enable = 0
level = 0
continue
# match parens
if enable == 0 and c == '{':
level += 1
if enable == 0 and c == '}':
level -= 1
if enable == 0 and level == 0:
enable = 1
# output directly without processing
if enable == 0:
output(c)
lc = n
continue
# chinese starts
if ch == 0 and isch(n) == 1:
output('\\zh{')
ch = 1
elif ch == 1 and isch(n) == 0:
output('}')
ch = 0
lc = n
output(c)
else:
output(line)
if line.find(MARK_START) != -1:
start = 1
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