121 lines
4.2 KiB
Python
121 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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wakatime.languages.python
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~~~~~~~~~~~~~~~~~~~~~~~~~
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Parse dependencies from Python code.
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:copyright: (c) 2014 Alan Hamlett.
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:license: BSD, see LICENSE for more details.
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"""
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from . import TokenParser
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from ..compat import u
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class PythonParser(TokenParser):
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state = None
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parens = 0
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nonpackage = False
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def parse(self, tokens=[]):
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if not tokens and not self.tokens:
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self.tokens = self._extract_tokens()
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for index, token, content in self.tokens:
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self._process_token(token, content)
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return self.dependencies
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def _process_token(self, token, content):
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if u(token).split('.')[-1] == 'Namespace':
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self._process_namespace(token, content)
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elif u(token).split('.')[-1] == 'Name':
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self._process_name(token, content)
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elif u(token).split('.')[-1] == 'Word':
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self._process_word(token, content)
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elif u(token).split('.')[-1] == 'Operator':
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self._process_operator(token, content)
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elif u(token).split('.')[-1] == 'Punctuation':
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self._process_punctuation(token, content)
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elif u(token).split('.')[-1] == 'Text':
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self._process_text(token, content)
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else:
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self._process_other(token, content)
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def _process_namespace(self, token, content):
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if self.state is None:
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self.state = content
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else:
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if content == 'as':
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self.nonpackage = True
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else:
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self._process_import(token, content)
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def _process_name(self, token, content):
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if self.state is not None:
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if self.nonpackage:
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self.nonpackage = False
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else:
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if self.state == 'from':
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self.append(content, truncate=True, truncate_to=0)
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if self.state == 'from-2' and content != 'import':
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self.append(content, truncate=True, truncate_to=0)
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elif self.state == 'import':
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self.append(content, truncate=True, truncate_to=0)
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elif self.state == 'import-2':
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self.append(content, truncate=True, truncate_to=0)
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else:
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self.state = None
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def _process_word(self, token, content):
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if self.state is not None:
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if self.nonpackage:
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self.nonpackage = False
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else:
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if self.state == 'from':
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self.append(content, truncate=True, truncate_to=0)
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if self.state == 'from-2' and content != 'import':
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self.append(content, truncate=True, truncate_to=0)
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elif self.state == 'import':
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self.append(content, truncate=True, truncate_to=0)
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elif self.state == 'import-2':
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self.append(content, truncate=True, truncate_to=0)
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else:
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self.state = None
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def _process_operator(self, token, content):
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if self.state is not None:
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if content == '.':
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self.nonpackage = True
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def _process_punctuation(self, token, content):
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if content == '(':
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self.parens += 1
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elif content == ')':
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self.parens -= 1
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self.nonpackage = False
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def _process_text(self, token, content):
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if self.state is not None:
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if content == "\n" and self.parens == 0:
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self.state = None
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self.nonpackage = False
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def _process_other(self, token, content):
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pass
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def _process_import(self, token, content):
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if not self.nonpackage:
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if self.state == 'from':
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self.append(content, truncate=True, truncate_to=0)
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self.state = 'from-2'
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elif self.state == 'from-2' and content != 'import':
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self.append(content, truncate=True, truncate_to=0)
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elif self.state == 'import':
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self.append(content, truncate=True, truncate_to=0)
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self.state = 'import-2'
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elif self.state == 'import-2':
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self.append(content, truncate=True, truncate_to=0)
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else:
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self.state = None
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self.nonpackage = False
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