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+"pythoncomplete.vim - Omni Completion for python
+" Maintainer: <vacancy>
+" Previous Maintainer: Aaron Griffin <aaronmgriffin@gmail.com>
+" Version: 0.9
+" Last Updated: 2020 Oct 9
+"
+" Changes
+" TODO:
+" 'info' item output can use some formatting work
+" Add an "unsafe eval" mode, to allow for return type evaluation
+" Complete basic syntax along with import statements
+" i.e. "import url<c-x,c-o>"
+" Continue parsing on invalid line??
+"
+" v 0.9
+" * Fixed docstring parsing for classes and functions
+" * Fixed parsing of *args and **kwargs type arguments
+" * Better function param parsing to handle things like tuples and
+" lambda defaults args
+"
+" v 0.8
+" * Fixed an issue where the FIRST assignment was always used instead of
+" using a subsequent assignment for a variable
+" * Fixed a scoping issue when working inside a parameterless function
+"
+"
+" v 0.7
+" * Fixed function list sorting (_ and __ at the bottom)
+" * Removed newline removal from docs. It appears vim handles these better in
+" recent patches
+"
+" v 0.6:
+" * Fixed argument completion
+" * Removed the 'kind' completions, as they are better indicated
+" with real syntax
+" * Added tuple assignment parsing (whoops, that was forgotten)
+" * Fixed import handling when flattening scope
+"
+" v 0.5:
+" Yeah, I skipped a version number - 0.4 was never public.
+" It was a bugfix version on top of 0.3. This is a complete
+" rewrite.
+"
+
+if !has('python')
+ echo "Error: Required vim compiled with +python"
+ finish
+endif
+
+function! pythoncomplete#Complete(findstart, base)
+ "findstart = 1 when we need to get the text length
+ if a:findstart == 1
+ let line = getline('.')
+ let idx = col('.')
+ while idx > 0
+ let idx -= 1
+ let c = line[idx]
+ if c =~ '\w'
+ continue
+ elseif ! c =~ '\.'
+ let idx = -1
+ break
+ else
+ break
+ endif
+ endwhile
+
+ return idx
+ "findstart = 0 when we need to return the list of completions
+ else
+ "vim no longer moves the cursor upon completion... fix that
+ let line = getline('.')
+ let idx = col('.')
+ let cword = ''
+ while idx > 0
+ let idx -= 1
+ let c = line[idx]
+ if c =~ '\w' || c =~ '\.'
+ let cword = c . cword
+ continue
+ elseif strlen(cword) > 0 || idx == 0
+ break
+ endif
+ endwhile
+ execute "python vimcomplete('" . escape(cword, "'") . "', '" . escape(a:base, "'") . "')"
+ return g:pythoncomplete_completions
+ endif
+endfunction
+
+function! s:DefPython()
+python << PYTHONEOF
+import sys, tokenize, cStringIO, types
+from token import NAME, DEDENT, NEWLINE, STRING
+
+debugstmts=[]
+def dbg(s): debugstmts.append(s)
+def showdbg():
+ for d in debugstmts: print "DBG: %s " % d
+
+def vimcomplete(context,match):
+ global debugstmts
+ debugstmts = []
+ try:
+ import vim
+ def complsort(x,y):
+ try:
+ xa = x['abbr']
+ ya = y['abbr']
+ if xa[0] == '_':
+ if xa[1] == '_' and ya[0:2] == '__':
+ return xa > ya
+ elif ya[0:2] == '__':
+ return -1
+ elif y[0] == '_':
+ return xa > ya
+ else:
+ return 1
+ elif ya[0] == '_':
+ return -1
+ else:
+ return xa > ya
+ except:
+ return 0
+ cmpl = Completer()
+ cmpl.evalsource('\n'.join(vim.current.buffer),vim.eval("line('.')"))
+ all = cmpl.get_completions(context,match)
+ all.sort(complsort)
+ dictstr = '['
+ # have to do this for double quoting
+ for cmpl in all:
+ dictstr += '{'
+ for x in cmpl: dictstr += '"%s":"%s",' % (x,cmpl[x])
+ dictstr += '"icase":0},'
+ if dictstr[-1] == ',': dictstr = dictstr[:-1]
+ dictstr += ']'
+ #dbg("dict: %s" % dictstr)
+ vim.command("silent let g:pythoncomplete_completions = %s" % dictstr)
+ #dbg("Completion dict:\n%s" % all)
+ except vim.error:
+ dbg("VIM Error: %s" % vim.error)
+
+class Completer(object):
+ def __init__(self):
+ self.compldict = {}
+ self.parser = PyParser()
+
+ def evalsource(self,text,line=0):
+ sc = self.parser.parse(text,line)
+ src = sc.get_code()
+ dbg("source: %s" % src)
+ try: exec(src) in self.compldict
+ except: dbg("parser: %s, %s" % (sys.exc_info()[0],sys.exc_info()[1]))
+ for l in sc.locals:
+ try: exec(l) in self.compldict
+ except: dbg("locals: %s, %s [%s]" % (sys.exc_info()[0],sys.exc_info()[1],l))
+
+ def _cleanstr(self,doc):
+ return doc.replace('"',' ').replace("'",' ')
+
+ def get_arguments(self,func_obj):
+ def _ctor(obj):
+ try: return class_ob.__init__.im_func
+ except AttributeError:
+ for base in class_ob.__bases__:
+ rc = _find_constructor(base)
+ if rc is not None: return rc
+ return None
+
+ arg_offset = 1
+ if type(func_obj) == types.ClassType: func_obj = _ctor(func_obj)
+ elif type(func_obj) == types.MethodType: func_obj = func_obj.im_func
+ else: arg_offset = 0
+
+ arg_text=''
+ if type(func_obj) in [types.FunctionType, types.LambdaType]:
+ try:
+ cd = func_obj.func_code
+ real_args = cd.co_varnames[arg_offset:cd.co_argcount]
+ defaults = func_obj.func_defaults or ''
+ defaults = map(lambda name: "=%s" % name, defaults)
+ defaults = [""] * (len(real_args)-len(defaults)) + defaults
+ items = map(lambda a,d: a+d, real_args, defaults)
+ if func_obj.func_code.co_flags & 0x4:
+ items.append("...")
+ if func_obj.func_code.co_flags & 0x8:
+ items.append("***")
+ arg_text = (','.join(items)) + ')'
+
+ except:
+ dbg("arg completion: %s: %s" % (sys.exc_info()[0],sys.exc_info()[1]))
+ pass
+ if len(arg_text) == 0:
+ # The doc string sometimes contains the function signature
+ # this works for a lot of C modules that are part of the
+ # standard library
+ doc = func_obj.__doc__
+ if doc:
+ doc = doc.lstrip()
+ pos = doc.find('\n')
+ if pos > 0:
+ sigline = doc[:pos]
+ lidx = sigline.find('(')
+ ridx = sigline.find(')')
+ if lidx > 0 and ridx > 0:
+ arg_text = sigline[lidx+1:ridx] + ')'
+ if len(arg_text) == 0: arg_text = ')'
+ return arg_text
+
+ def get_completions(self,context,match):
+ dbg("get_completions('%s','%s')" % (context,match))
+ stmt = ''
+ if context: stmt += str(context)
+ if match: stmt += str(match)
+ try:
+ result = None
+ all = {}
+ ridx = stmt.rfind('.')
+ if len(stmt) > 0 and stmt[-1] == '(':
+ result = eval(_sanitize(stmt[:-1]), self.compldict)
+ doc = result.__doc__
+ if doc is None: doc = ''
+ args = self.get_arguments(result)
+ return [{'word':self._cleanstr(args),'info':self._cleanstr(doc)}]
+ elif ridx == -1:
+ match = stmt
+ all = self.compldict
+ else:
+ match = stmt[ridx+1:]
+ stmt = _sanitize(stmt[:ridx])
+ result = eval(stmt, self.compldict)
+ all = dir(result)
+
+ dbg("completing: stmt:%s" % stmt)
+ completions = []
+
+ try: maindoc = result.__doc__
+ except: maindoc = ' '
+ if maindoc is None: maindoc = ' '
+ for m in all:
+ if m == "_PyCmplNoType": continue #this is internal
+ try:
+ dbg('possible completion: %s' % m)
+ if m.find(match) == 0:
+ if result is None: inst = all[m]
+ else: inst = getattr(result,m)
+ try: doc = inst.__doc__
+ except: doc = maindoc
+ typestr = str(inst)
+ if doc is None or doc == '': doc = maindoc
+
+ wrd = m[len(match):]
+ c = {'word':wrd, 'abbr':m, 'info':self._cleanstr(doc)}
+ if "function" in typestr:
+ c['word'] += '('
+ c['abbr'] += '(' + self._cleanstr(self.get_arguments(inst))
+ elif "method" in typestr:
+ c['word'] += '('
+ c['abbr'] += '(' + self._cleanstr(self.get_arguments(inst))
+ elif "module" in typestr:
+ c['word'] += '.'
+ elif "class" in typestr:
+ c['word'] += '('
+ c['abbr'] += '('
+ completions.append(c)
+ except:
+ i = sys.exc_info()
+ dbg("inner completion: %s,%s [stmt='%s']" % (i[0],i[1],stmt))
+ return completions
+ except:
+ i = sys.exc_info()
+ dbg("completion: %s,%s [stmt='%s']" % (i[0],i[1],stmt))
+ return []
+
+class Scope(object):
+ def __init__(self,name,indent,docstr=''):
+ self.subscopes = []
+ self.docstr = docstr
+ self.locals = []
+ self.parent = None
+ self.name = name
+ self.indent = indent
+
+ def add(self,sub):
+ #print 'push scope: [%s@%s]' % (sub.name,sub.indent)
+ sub.parent = self
+ self.subscopes.append(sub)
+ return sub
+
+ def doc(self,str):
+ """ Clean up a docstring """
+ d = str.replace('\n',' ')
+ d = d.replace('\t',' ')
+ while d.find(' ') > -1: d = d.replace(' ',' ')
+ while d[0] in '"\'\t ': d = d[1:]
+ while d[-1] in '"\'\t ': d = d[:-1]
+ dbg("Scope(%s)::docstr = %s" % (self,d))
+ self.docstr = d
+
+ def local(self,loc):
+ self._checkexisting(loc)
+ self.locals.append(loc)
+
+ def copy_decl(self,indent=0):
+ """ Copy a scope's declaration only, at the specified indent level - not local variables """
+ return Scope(self.name,indent,self.docstr)
+
+ def _checkexisting(self,test):
+ "Convienance function... keep out duplicates"
+ if test.find('=') > -1:
+ var = test.split('=')[0].strip()
+ for l in self.locals:
+ if l.find('=') > -1 and var == l.split('=')[0].strip():
+ self.locals.remove(l)
+
+ def get_code(self):
+ str = ""
+ if len(self.docstr) > 0: str += '"""'+self.docstr+'"""\n'
+ for l in self.locals:
+ if l.startswith('import'): str += l+'\n'
+ str += 'class _PyCmplNoType:\n def __getattr__(self,name):\n return None\n'
+ for sub in self.subscopes:
+ str += sub.get_code()
+ for l in self.locals:
+ if not l.startswith('import'): str += l+'\n'
+
+ return str
+
+ def pop(self,indent):
+ #print 'pop scope: [%s] to [%s]' % (self.indent,indent)
+ outer = self
+ while outer.parent != None and outer.indent >= indent:
+ outer = outer.parent
+ return outer
+
+ def currentindent(self):
+ #print 'parse current indent: %s' % self.indent
+ return ' '*self.indent
+
+ def childindent(self):
+ #print 'parse child indent: [%s]' % (self.indent+1)
+ return ' '*(self.indent+1)
+
+class Class(Scope):
+ def __init__(self, name, supers, indent, docstr=''):
+ Scope.__init__(self,name,indent, docstr)
+ self.supers = supers
+ def copy_decl(self,indent=0):
+ c = Class(self.name,self.supers,indent, self.docstr)
+ for s in self.subscopes:
+ c.add(s.copy_decl(indent+1))
+ return c
+ def get_code(self):
+ str = '%sclass %s' % (self.currentindent(),self.name)
+ if len(self.supers) > 0: str += '(%s)' % ','.join(self.supers)
+ str += ':\n'
+ if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n'
+ if len(self.subscopes) > 0:
+ for s in self.subscopes: str += s.get_code()
+ else:
+ str += '%spass\n' % self.childindent()
+ return str
+
+
+class Function(Scope):
+ def __init__(self, name, params, indent, docstr=''):
+ Scope.__init__(self,name,indent, docstr)
+ self.params = params
+ def copy_decl(self,indent=0):
+ return Function(self.name,self.params,indent, self.docstr)
+ def get_code(self):
+ str = "%sdef %s(%s):\n" % \
+ (self.currentindent(),self.name,','.join(self.params))
+ if len(self.docstr) > 0: str += self.childindent()+'"""'+self.docstr+'"""\n'
+ str += "%spass\n" % self.childindent()
+ return str
+
+class PyParser:
+ def __init__(self):
+ self.top = Scope('global',0)
+ self.scope = self.top
+ self.parserline = 0
+
+ def _parsedotname(self,pre=None):
+ #returns (dottedname, nexttoken)
+ name = []
+ if pre is None:
+ tokentype, token, indent = self.next()
+ if tokentype != NAME and token != '*':
+ return ('', token)
+ else: token = pre
+ name.append(token)
+ while True:
+ tokentype, token, indent = self.next()
+ if token != '.': break
+ tokentype, token, indent = self.next()
+ if tokentype != NAME: break
+ name.append(token)
+ return (".".join(name), token)
+
+ def _parseimportlist(self):
+ imports = []
+ while True:
+ name, token = self._parsedotname()
+ if not name: break
+ name2 = ''
+ if token == 'as': name2, token = self._parsedotname()
+ imports.append((name, name2))
+ while token != "," and "\n" not in token:
+ tokentype, token, indent = self.next()
+ if token != ",": break
+ return imports
+
+ def _parenparse(self):
+ name = ''
+ names = []
+ level = 1
+ while True:
+ tokentype, token, indent = self.next()
+ if token in (')', ',') and level == 1:
+ if '=' not in name: name = name.replace(' ', '')
+ names.append(name.strip())
+ name = ''
+ if token == '(':
+ level += 1
+ name += "("
+ elif token == ')':
+ level -= 1
+ if level == 0: break
+ else: name += ")"
+ elif token == ',' and level == 1:
+ pass
+ else:
+ name += "%s " % str(token)
+ return names
+
+ def _parsefunction(self,indent):
+ self.scope=self.scope.pop(indent)
+ tokentype, fname, ind = self.next()
+ if tokentype != NAME: return None
+
+ tokentype, open, ind = self.next()
+ if open != '(': return None
+ params=self._parenparse()
+
+ tokentype, colon, ind = self.next()
+ if colon != ':': return None
+
+ return Function(fname,params,indent)
+
+ def _parseclass(self,indent):
+ self.scope=self.scope.pop(indent)
+ tokentype, cname, ind = self.next()
+ if tokentype != NAME: return None
+
+ super = []
+ tokentype, next, ind = self.next()
+ if next == '(':
+ super=self._parenparse()
+ elif next != ':': return None
+
+ return Class(cname,super,indent)
+
+ def _parseassignment(self):
+ assign=''
+ tokentype, token, indent = self.next()
+ if tokentype == tokenize.STRING or token == 'str':
+ return '""'
+ elif token == '(' or token == 'tuple':
+ return '()'
+ elif token == '[' or token == 'list':
+ return '[]'
+ elif token == '{' or token == 'dict':
+ return '{}'
+ elif tokentype == tokenize.NUMBER:
+ return '0'
+ elif token == 'open' or token == 'file':
+ return 'file'
+ elif token == 'None':
+ return '_PyCmplNoType()'
+ elif token == 'type':
+ return 'type(_PyCmplNoType)' #only for method resolution
+ else:
+ assign += token
+ level = 0
+ while True:
+ tokentype, token, indent = self.next()
+ if token in ('(','{','['):
+ level += 1
+ elif token in (']','}',')'):
+ level -= 1
+ if level == 0: break
+ elif level == 0:
+ if token in (';','\n'): break
+ assign += token
+ return "%s" % assign
+
+ def next(self):
+ type, token, (lineno, indent), end, self.parserline = self.gen.next()
+ if lineno == self.curline:
+ #print 'line found [%s] scope=%s' % (line.replace('\n',''),self.scope.name)
+ self.currentscope = self.scope
+ return (type, token, indent)
+
+ def _adjustvisibility(self):
+ newscope = Scope('result',0)
+ scp = self.currentscope
+ while scp != None:
+ if type(scp) == Function:
+ slice = 0
+ #Handle 'self' params
+ if scp.parent != None and type(scp.parent) == Class:
+ slice = 1
+ newscope.local('%s = %s' % (scp.params[0],scp.parent.name))
+ for p in scp.params[slice:]:
+ i = p.find('=')
+ if len(p) == 0: continue
+ pvar = ''
+ ptype = ''
+ if i == -1:
+ pvar = p
+ ptype = '_PyCmplNoType()'
+ else:
+ pvar = p[:i]
+ ptype = _sanitize(p[i+1:])
+ if pvar.startswith('**'):
+ pvar = pvar[2:]
+ ptype = '{}'
+ elif pvar.startswith('*'):
+ pvar = pvar[1:]
+ ptype = '[]'
+
+ newscope.local('%s = %s' % (pvar,ptype))
+
+ for s in scp.subscopes:
+ ns = s.copy_decl(0)
+ newscope.add(ns)
+ for l in scp.locals: newscope.local(l)
+ scp = scp.parent
+
+ self.currentscope = newscope
+ return self.currentscope
+
+ #p.parse(vim.current.buffer[:],vim.eval("line('.')"))
+ def parse(self,text,curline=0):
+ self.curline = int(curline)
+ buf = cStringIO.StringIO(''.join(text) + '\n')
+ self.gen = tokenize.generate_tokens(buf.readline)
+ self.currentscope = self.scope
+
+ try:
+ freshscope=True
+ while True:
+ tokentype, token, indent = self.next()
+ #dbg( 'main: token=[%s] indent=[%s]' % (token,indent))
+
+ if tokentype == DEDENT or token == "pass":
+ self.scope = self.scope.pop(indent)
+ elif token == 'def':
+ func = self._parsefunction(indent)
+ if func is None:
+ print "function: syntax error..."
+ continue
+ dbg("new scope: function")
+ freshscope = True
+ self.scope = self.scope.add(func)
+ elif token == 'class':
+ cls = self._parseclass(indent)
+ if cls is None:
+ print "class: syntax error..."
+ continue
+ freshscope = True
+ dbg("new scope: class")
+ self.scope = self.scope.add(cls)
+
+ elif token == 'import':
+ imports = self._parseimportlist()
+ for mod, alias in imports:
+ loc = "import %s" % mod
+ if len(alias) > 0: loc += " as %s" % alias
+ self.scope.local(loc)
+ freshscope = False
+ elif token == 'from':
+ mod, token = self._parsedotname()
+ if not mod or token != "import":
+ print "from: syntax error..."
+ continue
+ names = self._parseimportlist()
+ for name, alias in names:
+ loc = "from %s import %s" % (mod,name)
+ if len(alias) > 0: loc += " as %s" % alias
+ self.scope.local(loc)
+ freshscope = False
+ elif tokentype == STRING:
+ if freshscope: self.scope.doc(token)
+ elif tokentype == NAME:
+ name,token = self._parsedotname(token)
+ if token == '=':
+ stmt = self._parseassignment()
+ dbg("parseassignment: %s = %s" % (name, stmt))
+ if stmt != None:
+ self.scope.local("%s = %s" % (name,stmt))
+ freshscope = False
+ except StopIteration: #thrown on EOF
+ pass
+ except:
+ dbg("parse error: %s, %s @ %s" %
+ (sys.exc_info()[0], sys.exc_info()[1], self.parserline))
+ return self._adjustvisibility()
+
+def _sanitize(str):
+ val = ''
+ level = 0
+ for c in str:
+ if c in ('(','{','['):
+ level += 1
+ elif c in (']','}',')'):
+ level -= 1
+ elif level == 0:
+ val += c
+ return val
+
+sys.path.extend(['.','..'])
+PYTHONEOF
+endfunction
+
+call s:DefPython()
+" vim: set et ts=4:
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-29 21:02:08 +0000