How to use _change_dialect method in Gherkin-python

Best Python code snippet using gherkin-python

parser.py

Source:parser.py

...19    """Gherkin 3 token matcher that always uses the given language."""20    def __init__(self, dialect_name='en'):21        self.actual_dialect_name = dialect_name22        super().__init__(dialect_name=dialect_name)23    def _change_dialect(self, dialect_name, location=None):24        """Force the dialect name given in the constructor."""25        super()._change_dialect(self.actual_dialect_name, location=location)26def cell_values(row):27    """Extract cell values from a table header or row."""28    return tuple(cell['value'] for cell in row['cells'])29class Node(object):30    """31    A base parse node.32    """33    def __init__(self, parsed, filename=None):34        """Construct the node from Gherkin parse results."""35        self.line = parsed['location']['line']36        self.col = parsed['location']['column']37        self.filename = filename38    @property39    def feature(self):...

token_matcher.py

Source:token_matcher.py

...4class TokenMatcher(object):5    LANGUAGE_RE = re.compile(r"^\s*#\s*language\s*:\s*([a-zA-Z\-_]+)\s*$")6    def __init__(self, dialect_name='en'):7        self._default_dialect_name = dialect_name8        self._change_dialect(dialect_name)9        self.reset()10    def reset(self):11        if self.dialect_name != self._default_dialect_name:12            self._change_dialect(self._default_dialect_name)13        self._indent_to_remove = 014        self._active_doc_string_separator = None15    def match_FeatureLine(self, token):16        return self._match_title_line(token, 'FeatureLine', self.dialect.feature_keywords)17    def match_ScenarioLine(self, token):18        return self._match_title_line(token, 'ScenarioLine', self.dialect.scenario_keywords)19    def match_ScenarioOutlineLine(self, token):20        return self._match_title_line(token, 'ScenarioOutlineLine',21                                      self.dialect.scenario_outline_keywords)22    def match_BackgroundLine(self, token):23        return self._match_title_line(token, 'BackgroundLine', self.dialect.background_keywords)24    def match_ExamplesLine(self, token):25        return self._match_title_line(token, 'ExamplesLine', self.dialect.examples_keywords)26    def match_TableRow(self, token):27        if not token.line.startswith('|'):28            return False29        # TODO: indent30        self._set_token_matched(token, 'TableRow', items=token.line.table_cells)31        return True32    def match_StepLine(self, token):33        keywords = (self.dialect.given_keywords +34                    self.dialect.when_keywords +35                    self.dialect.then_keywords +36                    self.dialect.and_keywords +37                    self.dialect.but_keywords)38        for keyword in (k for k in keywords if token.line.startswith(k)):39            title = token.line.get_rest_trimmed(len(keyword))40            self._set_token_matched(token, 'StepLine', title, keyword)41            return True42        return False43    def match_Comment(self, token):44        if not token.line.startswith('#'):45            return False46        text = token.line._line_text  # take the entire line, including leading space47        self._set_token_matched(token, 'Comment', text, indent=0)48        return True49    def match_Empty(self, token):50        if not token.line.is_empty():51            return False52        self._set_token_matched(token, 'Empty', indent=0)53        return True54    def match_Language(self, token):55        match = self.LANGUAGE_RE.match(token.line.get_line_text())56        if not match:57            return False58        dialect_name = match.group(1)59        self._set_token_matched(token, 'Language', dialect_name)60        self._change_dialect(dialect_name, token.location)61        return True62    def match_TagLine(self, token):63        if not token.line.startswith('@'):64            return False65        self._set_token_matched(token, 'TagLine', items=token.line.tags)66        return True67    def match_DocStringSeparator(self, token):68        if not self._active_doc_string_separator:69            # open70            return (self._match_DocStringSeparator(token, '"""', True) or71                    self._match_DocStringSeparator(token, '```', True))72        else:73            # close74            return self._match_DocStringSeparator(token, self._active_doc_string_separator, False)75    def _match_DocStringSeparator(self, token, separator, is_open):76        if not token.line.startswith(separator):77            return False78        content_type = None79        if is_open:80            content_type = token.line.get_rest_trimmed(len(separator))81            self._active_doc_string_separator = separator82            self._indent_to_remove = token.line.indent83        else:84            self._active_doc_string_separator = None85            self._indent_to_remove = 086        # TODO: Use the separator as keyword. That's needed for pretty printing.87        self._set_token_matched(token, 'DocStringSeparator', content_type)88        return True89    def match_Other(self, token):90        # take the entire line, except removing DocString indents91        text = token.line.get_line_text(self._indent_to_remove)92        self._set_token_matched(token, 'Other', self._unescaped_docstring(text), indent=0)93        return True94    def match_EOF(self, token):95        if not token.eof():96            return False97        self._set_token_matched(token, 'EOF')98        return True99    def _match_title_line(self, token, token_type, keywords):100        for keyword in (k for k in keywords if token.line.startswith_title_keyword(k)):101            title = token.line.get_rest_trimmed(len(keyword) + len(':'))102            self._set_token_matched(token, token_type, title, keyword)103            return True104        return False105    def _set_token_matched(self, token, matched_type, text=None,106                           keyword=None, indent=None, items=None):107        if items is None:108            items = []109        token.matched_type = matched_type110        # text == '' should not result in None111        token.matched_text = text.rstrip('\r\n') if text is not None else None112        token.matched_keyword = keyword113        if indent is not None:114            token.matched_indent = indent115        else:116            token.matched_indent = token.line.indent if token.line else 0117        token.matched_items = items118        token.location['column'] = token.matched_indent + 1119        token.matched_gherkin_dialect = self.dialect_name120    def _change_dialect(self, dialect_name, location=None):121        dialect = Dialect.for_name(dialect_name)122        if not dialect:123            raise NoSuchLanguageException(dialect_name, location)124        self.dialect_name = dialect_name125        self.dialect = dialect126    def _unescaped_docstring(self, text):...

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