Moved completers to new dir; improved completers and added word completion

plugins/completers/snippets_completer/cson/speg/__init__.py

@@ -0,0 +1 @@
+from .peg import peg, ParseError

plugins/completers/snippets_completer/cson/speg/peg.py

@@ -0,0 +1,147 @@
+import sys, re
+
+class ParseError(Exception):
+    def __init__(self, msg, text, offset, line, col):
+        self.msg = msg
+        self.text = text
+        self.offset = offset
+        self.line = line
+        self.col = col
+        super(ParseError, self).__init__(msg, offset, line, col)
+
+if sys.version_info[0] == 2:
+    _basestr = basestring
+else:
+    _basestr = str
+
+def peg(s, r):
+    p = _Peg(s)
+    try:
+        return p(r)
+    except _UnexpectedError as e:
+        offset = max(p._errors)
+        err = p._errors[offset]
+        raise ParseError(err.msg, s, offset, err.line, err.col)
+
+class _UnexpectedError(RuntimeError):
+    def __init__(self, state, expr):
+        self.state = state
+        self.expr = expr
+
+class _PegState:
+    def __init__(self, pos, line, col):
+        self.pos = pos
+        self.line = line
+        self.col = col
+        self.vars = {}
+        self.commited = False
+
+class _PegError:
+    def __init__(self, msg, line, col):
+        self.msg = msg
+        self.line = line
+        self.col = col
+
+class _Peg:
+    def __init__(self, s):
+        self._s = s
+        self._states = [_PegState(0, 1, 1)]
+        self._errors = {}
+        self._re_cache = {}
+
+    def __call__(self, r, *args, **kw):
+        if isinstance(r, _basestr):
+            compiled = self._re_cache.get(r)
+            if not compiled:
+                compiled = re.compile(r)
+                self._re_cache[r] = compiled
+            st = self._states[-1]
+            m = compiled.match(self._s[st.pos:])
+            if not m:
+                self.error(expr=r, err=kw.get('err'))
+
+            ms = m.group(0)
+            st.pos += len(ms)
+            nl_pos = ms.rfind('\n')
+            if nl_pos < 0:
+                st.col += len(ms)
+            else:
+                st.col = len(ms) - nl_pos
+                st.line += ms[:nl_pos].count('\n') + 1
+            return ms
+        else:
+            kw.pop('err', None)
+            return r(self, *args, **kw)
+
+    def __repr__(self):
+        pos = self._states[-1].pos
+        vars = {}
+        for st in self._states:
+            vars.update(st.vars)
+        return '_Peg(%r, %r)' % (self._s[:pos] + '*' + self._s[pos:], vars)
+
+    @staticmethod
+    def eof(p):
+        if p._states[-1].pos != len(p._s):
+            p.error()
+
+    def error(self, err=None, expr=None):
+        st = self._states[-1]
+        if err is None:
+            err = 'expected {!r}, found {!r}'.format(expr, self._s[st.pos:st.pos+4])
+        self._errors[st.pos] = _PegError(err, st.line, st.col)
+        raise _UnexpectedError(st, expr)
+
+    def get(self, key, default=None):
+        for state in self._states[::-1]:
+            if key in state.vars:
+                return state.vars[key][0]
+        return default
+
+    def set(self, key, value):
+        self._states[-1].vars[key] = value, False
+
+    def set_global(self, key, value):
+        self._states[-1].vars[key] = value, True
+
+    def opt(self, *args, **kw):
+        with self:
+            return self(*args, **kw)
+
+    def not_(self, s, *args, **kw):
+        with self:
+            self(s)
+            self.error()
+
+    def __enter__(self):
+        self._states[-1].committed = False
+        self._states.append(_PegState(self._states[-1].pos, self._states[-1].line, self._states[-1].col))
+
+    def __exit__(self, type, value, traceback):
+        if type is None:
+            self.commit()
+        self._states.pop()
+        return type == _UnexpectedError
+
+    def commit(self):
+        cur = self._states[-1]
+        prev = self._states[-2]
+
+        for key in cur.vars:
+            val, g = cur.vars[key]
+            if not g:
+                continue
+            if key in prev.vars:
+                prev.vars[key] = val, prev.vars[key][1]
+            else:
+                prev.vars[key] = val, True
+
+        prev.pos = cur.pos
+        prev.line = cur.line
+        prev.col = cur.col
+        prev.committed = True
+
+    def __nonzero__(self):
+        return self._states[-1].committed
+
+    __bool__ = __nonzero__