forked from GitHub/comp-syntax-gu-mlt
69 lines
1.8 KiB
Python
69 lines
1.8 KiB
Python
# translator for arbitrary pgf grammar and language pair, given as arguments
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import pgf
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import sys
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def trim(s0):
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"lower-case first word and tokenize"
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s = s0.strip()
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if not(s):
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return s
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s = (s[0].lower() + s[1:])
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r = ""
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for c in s:
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if c in [',','.',':','(',')']:
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r = r + ' ' + c + ' '
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else:
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r = r + c
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return r
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def missing(eng,s):
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"words in a sentence not found in morphological analysis"
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ws = s.split()
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ms = []
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for w in ws:
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if not eng.lookupMorpho(w): # strange behaviour of eng
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ms = ms + [w]
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return ms
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def main():
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"translation loop, reads stdio line by line"
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if len(sys.argv) < 4:
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print(" usage: python3 translator.py <pgf-file-prefix> <from-lang-suffix> <to-lang-suffix> -debug?")
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print(" e.g. python3 translator.py CSETranslator Eng Swe")
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print(" The program reads and writes stdio line by line, e.g")
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print(" cat ../course_plans/TIN214Eng.txt | python3 translator.py CSEShallow Eng Swe")
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return
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pgfm = sys.argv[1]
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pgff = pgfm + ".pgf"
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ceng = pgfm + sys.argv[2]
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cswe = pgfm + sys.argv[3]
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debug = len(sys.argv) == 5 and sys.argv[4] == "-debug"
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gr = pgf.readPGF(pgff)
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eng = gr.languages[ceng]
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swe = gr.languages[cswe]
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print("#","translating with",pgff,"from",ceng,"to",cswe)
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while True:
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try:
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line = input("")
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except EOFError:
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break
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t = trim(line)
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if not(t):
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pass
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else:
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try:
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px = eng.parse(t)
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p,e = px.__next__()
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if debug:
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print("# TREE", e)
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print(swe.linearize(e))
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except pgf.ParseError:
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print("# NO PARSE", t)
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if debug:
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print("# MISSING", missing(eng,t))
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main()
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