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"""
Converts ASCII text to Grade 1 Braille as described in
braille.sty, summary.tex
Essentially, it marks up
{Letter}, {Number},
{``}...{''} for double quotation which must be typed as ``...'',
{.`}...{'.} for single quotation which must be typed as .`...'.,
{percent}
so that the text is acceptable as input to \braille{}. The output is
striped and returned all in one line.
Usage:
>>> grade1.convert("I like computer")
"I like computer"
>>> grade1.convert("April 1999")
"April {Number}1999"
>>> grade1.convert("I said ``hello'', and she said ``goodbye''.")
"I said {``}hello{''}, and she said {``}goodbye{''}."
Usage:
python grade1.py < text > tags
"""
import string
Number = '0123456789'
def convert(line):
line = string.replace(line, "``", "{``}") # ``...''
line = string.replace(line, "''", "{''}")
line = string.replace(line, ".`", "{.`}") # .`...'.
line = string.replace(line, "'.", "{'.}")
line = string.replace(line, '%', '{percent}') # %
s, oldi, oldii, skipchars = '', ' ', ' ', 0
for i in line:
if i == '{':
skipchars = 1
elif i == '}':
skipchars = 0
elif skipchars: # skip anything inside {...}
pass
elif oldi in Number and i in 'abcdefghij':
s = s + '{Letter}'
elif i in Number:
if (oldii in Number and oldi in '.-') or (oldi in Number):
pass
else:
s = s + '{Number}'
s, oldi, oldii = s + i, i, oldi
return string.join(string.split(s)) # return all in one line
if __name__ == '__main__':
import sys
line = sys.stdin.read() # swallow the whole thing
print convert(line) # may produce extra \n
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