--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gadict.py	Thu Mar 24 01:11:47 2016 +0200
@@ -0,0 +1,206 @@
+
+import io
+import sys
+# import re
+import regex
+
+
+# fgadict = "gadict_en-ru+ua.gadict"
+fgadict = None
+fnout = None
+if len(sys.argv) >= 2:
+    fgadict = sys.argv[1]
+if len(sys.argv) >= 3:
+    fnout = sys.argv[2]
+
+fin = io.open(fgadict, mode='r', buffering=1, encoding="utf-8")
+if fnout is None:
+    fout = sys.stdout
+else:
+    fout = open(fnout, "w")
+
+
+class ParseException(Exception):
+
+    def __init__(self, msg):
+        self.msg = msg
+
+    def __repr__(self):
+        return self.msg
+
+
+class Parser:
+
+    SEPARATOR_RE = regex.compile(r"^__$")
+    HEADWORD_RE = regex.compile(r"^(\p{L}.*)$")
+    HEADWORD_VAR_RE = regex.compile(r"^ +(s|pl|v[123]|male|female|comp|super)$")
+    HEADWORD_PRON_RE = regex.compile(r"^ +\[([\p{L}' ]+)\]$")
+    TRANSL_POS_RE = regex.compile(r"^n|pron|adj|v|adv|prep|conj|num|int|phr\.v|abbr$")
+    TRANSL_RE = regex.compile(r"^(ru|uk|la|en): ([\p{L}(][\p{L}\p{P}~ ]*)$")
+    TRANSL_EX_RE = regex.compile(r"^(ru|uk|la|en)> (\p{L}.*)$")
+
+    TRAILING_SPACES_RE = regex.compile(r"\p{Z}+$")
+
+    def __init__(self):
+        pass
+
+    def readline(self):
+        self.line = self.stream.readline()
+        self.eof = len(self.line) == 0
+        if not self.eof:
+            self.lineno += 1
+
+    def parse(self, stream):
+        self.lineno = 0
+        self.stream = stream
+        self.dom = []
+        try:
+            self.parse_prelude()
+            while not self.eof:
+                self.parse_article()
+        except ParseException as ex:
+            if self.TRAILING_SPACES_RE.match(self.line):
+                fout.write("{:s}:{:d}: {:s}".format(fgadict, self.lineno, "Traling spaces detected...\n"))
+            fout.write("{:s}:{:d}: {:s}\nLINE: {:s}\n".format(fgadict, self.lineno, str(ex), self.line))
+            raise Exception(ex)
+        return self.dom
+
+    def parse_prelude(self):
+        """Read dictionary prelude until first "__" delimiter."""
+        while True:
+            self.readline()
+            if self.eof:
+                raise ParseException("There are no articles...")
+            if self.SEPARATOR_RE.match(self.line):
+                break
+
+    def parse_article(self):
+        """Try to match article until next "__" delimiter. Assume that `self.line` point to "__" delimiter."""
+        self.words = None
+        self.tran = None
+        self.parse_empty_line()
+        self.parse_headlines()
+        self.parse_translation()
+        self.dom.append((self.words, self.tran))
+
+    def parse_empty_line(self):
+        self.readline()
+        if self.eof or len(self.line) != 1:
+            raise ParseException(""""__" delimiter should followed by empty line...""")
+
+    def parse_headlines(self):
+        """Try to match word variations with attributed. Assume that `self.line` on preceding empty line."""
+        self.words = {}
+        self.readline()
+        if self.eof:
+            raise ParseException("""There are no definition after "__" delimiter...""")
+        m = self.HEADWORD_RE.match(self.line)
+        if m is None:
+            raise ParseException("""There are no headword after "__" delimiter...""")
+        word = m.group(1)
+        pron = None
+        attrs = set()
+        while True:
+            self.readline()
+            if self.eof or len(self.line) == 1:
+                break
+            m = self.HEADWORD_RE.match(self.line)
+            if m is not None:
+                if word is None:
+                    raise ParseException("""Didn't match previous headword...""")
+                self.words[word] = (pron, attrs)
+                word = m.group(1)
+                pron = None
+                attrs = set()
+                continue
+            m = self.HEADWORD_PRON_RE.match(self.line)
+            if m is not None:
+                if pron is not None:
+                    raise ParseException("""Pronunciation is redefined...""")
+                pron = m.group(1)
+                continue
+            m = self.HEADWORD_VAR_RE.match(self.line)
+            if m is not None:
+                attrs.add(m.group(1))
+                continue
+            raise ParseException("""Line is not headword or translation or headword attribute...""")
+        self.words[word] = (pron, attrs)
+
+    def parse_translation(self):
+        senses = []
+        pos = None
+        tr = []
+        ex = []
+        while True:
+            self.readline()
+            if self.eof:
+                break
+            m = self.SEPARATOR_RE.match(self.line)
+            if m is not None:
+                break
+            if len(self.line) == 1:
+                senses.append((pos, tr, ex))
+                pos = None
+                tr = []
+                ex = []
+                continue
+            m = self.TRANSL_POS_RE.match(self.line)
+            if m is not None:
+                if pos is not None:
+                    raise ParseException("""Each translation should have only one part of speech marker...""")
+                pos = m.group(0)
+                continue
+            m = self.TRANSL_RE.match(self.line)
+            if m is not None:
+                tr.append((m.group(1), m.group(2)))
+                continue
+            m = self.TRANSL_EX_RE.match(self.line)
+            if m is not None:
+                ex.append((m.group(1), m.group(2)))
+                continue
+            raise ParseException("""Uknown syntax...""")
+        if len(tr) > 0:
+            senses.append((pos, tr, ex))
+        self.tran = senses
+
+parser = Parser()
+dom = parser.parse(fin)
+fin.close()
+
+for idx in range(1, len(dom)):
+    article = dom[idx]
+    fout.write("_____\n\n")
+    title = "; ".join(article[0].keys())
+    fout.write(title)
+    fout.write("\n\n")
+    for (word, (pron, attrs)) in article[0].items():
+        if word == "approach":
+            fout.write(str(article[0]))
+        fout.write("  ")
+        fout.write(word)
+        fout.write("\n")
+        if pron is not None:
+            fout.write("    [")
+            fout.write(pron)
+            fout.write("]\n")
+        if len(attrs) > 0:
+            fout.write("    ")
+            l = list(attrs)
+            l.sort()
+            fout.write(", ".join(l))
+            fout.write("\n")
+    fout.write("\n")
+    for (pos, trs, exs) in article[1]:
+        fout.write("  ")
+        if pos is not None:
+            fout.write("⟨")
+            fout.write(pos)
+            fout.write("⟩ ")
+        for (lang, tr) in trs:
+            if lang == "ru":
+                fout.write(tr)
+                break
+        fout.write("\n")
+
+    # fout.write(str(article[0])+"\n")
+