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""" pygments.lexers.robotframework ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Lexer for Robot Framework. :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS. :license: BSD, see LICENSE for details. """ # Copyright 2012 Nokia Siemens Networks Oyj # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import re from pygments.lexer import Lexer from pygments.token import Token __all__ = ['RobotFrameworkLexer'] HEADING = Token.Generic.Heading SETTING = Token.Keyword.Namespace IMPORT = Token.Name.Namespace TC_KW_NAME = Token.Generic.Subheading KEYWORD = Token.Name.Function ARGUMENT = Token.String VARIABLE = Token.Name.Variable COMMENT = Token.Comment SEPARATOR = Token.Punctuation SYNTAX = Token.Punctuation GHERKIN = Token.Generic.Emph ERROR = Token.Error def normalize(string, remove=''): string = string.lower() for char in remove + ' ': if char in string: string = string.replace(char, '') return string class RobotFrameworkLexer(Lexer): """ For Robot Framework test data. Supports both space and pipe separated plain text formats. .. versionadded:: 1.6 """ name = 'RobotFramework' url = 'http://robotframework.org' aliases = ['robotframework'] filenames = ['*.robot', '*.resource'] mimetypes = ['text/x-robotframework'] def __init__(self, **options): options['tabsize'] = 2 options['encoding'] = 'UTF-8' Lexer.__init__(self, **options) def get_tokens_unprocessed(self, text): row_tokenizer = RowTokenizer() var_tokenizer = VariableTokenizer() index = 0 for row in text.splitlines(): for value, token in row_tokenizer.tokenize(row): for value, token in var_tokenizer.tokenize(value, token): if value: yield index, token, str(value) index += len(value) class VariableTokenizer: def tokenize(self, string, token): var = VariableSplitter(string, identifiers='$@%&') if var.start < 0 or token in (COMMENT, ERROR): yield string, token return for value, token in self._tokenize(var, string, token): if value: yield value, token def _tokenize(self, var, string, orig_token): before = string[:var.start] yield before, orig_token yield var.identifier + '{', SYNTAX yield from self.tokenize(var.base, VARIABLE) yield '}', SYNTAX if var.index is not None: yield '[', SYNTAX yield from self.tokenize(var.index, VARIABLE) yield ']', SYNTAX yield from self.tokenize(string[var.end:], orig_token) class RowTokenizer: def __init__(self): self._table = UnknownTable() self._splitter = RowSplitter() testcases = TestCaseTable() settings = SettingTable(testcases.set_default_template) variables = VariableTable() keywords = KeywordTable() self._tables = {'settings': settings, 'setting': settings, 'metadata': settings, 'variables': variables, 'variable': variables, 'testcases': testcases, 'testcase': testcases, 'tasks': testcases, 'task': testcases, 'keywords': keywords, 'keyword': keywords, 'userkeywords': keywords, 'userkeyword': keywords} def tokenize(self, row): commented = False heading = False for index, value in enumerate(self._splitter.split(row)): # First value, and every second after that, is a separator. index, separator = divmod(index-1, 2) if value.startswith('#'): commented = True elif index == 0 and value.startswith('*'): self._table = self._start_table(value) heading = True yield from self._tokenize(value, index, commented, separator, heading) self._table.end_row() def _start_table(self, header): name = normalize(header, remove='*') return self._tables.get(name, UnknownTable()) def _tokenize(self, value, index, commented, separator, heading): if commented: yield value, COMMENT elif separator: yield value, SEPARATOR elif heading: yield value, HEADING else: yield from self._table.tokenize(value, index) class RowSplitter: _space_splitter = re.compile('( {2,})') _pipe_splitter = re.compile(r'((?:^| +)\|(?: +|$))') def split(self, row): splitter = (row.startswith('| ') and self._split_from_pipes or self._split_from_spaces) yield from splitter(row) yield '\n' def _split_from_spaces(self, row): yield '' # Start with (pseudo)separator similarly as with pipes yield from self._space_splitter.split(row) def _split_from_pipes(self, row): _, separator, rest = self._pipe_splitter.split(row, 1) yield separator while self._pipe_splitter.search(rest): cell, separator, rest = self._pipe_splitter.split(rest, 1) yield cell yield separator yield rest class Tokenizer: _tokens = None def __init__(self): self._index = 0 def tokenize(self, value): values_and_tokens = self._tokenize(value, self._index) self._index += 1 if isinstance(values_and_tokens, type(Token)): values_and_tokens = [(value, values_and_tokens)] return values_and_tokens def _tokenize(self, value, index): index = min(index, len(self._tokens) - 1) return self._tokens[index] def _is_assign(self, value): if value.endswith('='): value = value[:-1].strip() var = VariableSplitter(value, identifiers='$@&') return var.start == 0 and var.end == len(value) class Comment(Tokenizer): _tokens = (COMMENT,) class Setting(Tokenizer): _tokens = (SETTING, ARGUMENT) _keyword_settings = ('suitesetup', 'suiteprecondition', 'suiteteardown', 'suitepostcondition', 'testsetup', 'tasksetup', 'testprecondition', 'testteardown','taskteardown', 'testpostcondition', 'testtemplate', 'tasktemplate') _import_settings = ('library', 'resource', 'variables') _other_settings = ('documentation', 'metadata', 'forcetags', 'defaulttags', 'testtimeout','tasktimeout') _custom_tokenizer = None def __init__(self, template_setter=None): Tokenizer.__init__(self) self._template_setter = template_setter def _tokenize(self, value, index): if index == 1 and self._template_setter: self._template_setter(value) if index == 0: normalized = normalize(value) if normalized in self._keyword_settings: self._custom_tokenizer = KeywordCall(support_assign=False) elif normalized in self._import_settings: self._custom_tokenizer = ImportSetting() elif normalized not in self._other_settings: return ERROR elif self._custom_tokenizer: return self._custom_tokenizer.tokenize(value) return Tokenizer._tokenize(self, value, index) class ImportSetting(Tokenizer): _tokens = (IMPORT, ARGUMENT) class TestCaseSetting(Setting): _keyword_settings = ('setup', 'precondition', 'teardown', 'postcondition', 'template') _import_settings = () _other_settings = ('documentation', 'tags', 'timeout') def _tokenize(self, value, index): if index == 0: type = Setting._tokenize(self, value[1:-1], index) return [('[', SYNTAX), (value[1:-1], type), (']', SYNTAX)] return Setting._tokenize(self, value, index) class KeywordSetting(TestCaseSetting): _keyword_settings = ('teardown',) _other_settings = ('documentation', 'arguments', 'return', 'timeout', 'tags') class Variable(Tokenizer): _tokens = (SYNTAX, ARGUMENT) def _tokenize(self, value, index): if index == 0 and not self._is_assign(value): return ERROR return Tokenizer._tokenize(self, value, index) class KeywordCall(Tokenizer): _tokens = (KEYWORD, ARGUMENT) def __init__(self, support_assign=True): Tokenizer.__init__(self) self._keyword_found = not support_assign self._assigns = 0 def _tokenize(self, value, index): if not self._keyword_found and self._is_assign(value): self._assigns += 1 return SYNTAX # VariableTokenizer tokenizes this later. if self._keyword_found: return Tokenizer._tokenize(self, value, index - self._assigns) self._keyword_found = True return GherkinTokenizer().tokenize(value, KEYWORD) class GherkinTokenizer: _gherkin_prefix = re.compile('^(Given|When|Then|And|But) ', re.IGNORECASE) def tokenize(self, value, token): match = self._gherkin_prefix.match(value) if not match: return [(value, token)] end = match.end() return [(value[:end], GHERKIN), (value[end:], token)] class TemplatedKeywordCall(Tokenizer): _tokens = (ARGUMENT,) class ForLoop(Tokenizer): def __init__(self): Tokenizer.__init__(self) self._in_arguments = False def _tokenize(self, value, index): token = self._in_arguments and ARGUMENT or SYNTAX if value.upper() in ('IN', 'IN RANGE'): self._in_arguments = True return token class _Table: _tokenizer_class = None def __init__(self, prev_tokenizer=None): self._tokenizer = self._tokenizer_class() self._prev_tokenizer = prev_tokenizer self._prev_values_on_row = [] def tokenize(self, value, index): if self._continues(value, index): self._tokenizer = self._prev_tokenizer yield value, SYNTAX else: yield from self._tokenize(value, index) self._prev_values_on_row.append(value) def _continues(self, value, index): return value == '...' and all(self._is_empty(t) for t in self._prev_values_on_row) def _is_empty(self, value): return value in ('', '\\') def _tokenize(self, value, index): return self._tokenizer.tokenize(value) def end_row(self): self.__init__(prev_tokenizer=self._tokenizer) class UnknownTable(_Table): _tokenizer_class = Comment def _continues(self, value, index): return False class VariableTable(_Table): _tokenizer_class = Variable class SettingTable(_Table): _tokenizer_class = Setting def __init__(self, template_setter, prev_tokenizer=None): _Table.__init__(self, prev_tokenizer) self._template_setter = template_setter def _tokenize(self, value, index): if index == 0 and normalize(value) == 'testtemplate': self._tokenizer = Setting(self._template_setter) return _Table._tokenize(self, value, index) def end_row(self): self.__init__(self._template_setter, prev_tokenizer=self._tokenizer) class TestCaseTable(_Table): _setting_class = TestCaseSetting _test_template = None _default_template = None @property def _tokenizer_class(self): if self._test_template or (self._default_template and self._test_template is not False): return TemplatedKeywordCall return KeywordCall def _continues(self, value, index): return index > 0 and _Table._continues(self, value, index) def _tokenize(self, value, index): if index == 0: if value: self._test_template = None return GherkinTokenizer().tokenize(value, TC_KW_NAME) if index == 1 and self._is_setting(value): if self._is_template(value): self._test_template = False self._tokenizer = self._setting_class(self.set_test_template) else: self._tokenizer = self._setting_class() if index == 1 and self._is_for_loop(value): self._tokenizer = ForLoop() if index == 1 and self._is_empty(value): return [(value, SYNTAX)] return _Table._tokenize(self, value, index) def _is_setting(self, value): return value.startswith('[') and value.endswith(']') def _is_template(self, value): return normalize(value) == '[template]' def _is_for_loop(self, value): return value.startswith(':') and normalize(value, remove=':') == 'for' def set_test_template(self, template): self._test_template = self._is_template_set(template) def set_default_template(self, template): self._default_template = self._is_template_set(template) def _is_template_set(self, template): return normalize(template) not in ('', '\\', 'none', '${empty}') class KeywordTable(TestCaseTable): _tokenizer_class = KeywordCall _setting_class = KeywordSetting def _is_template(self, value): return False # Following code copied directly from Robot Framework 2.7.5. class VariableSplitter: def __init__(self, string, identifiers): self.identifier = None self.base = None self.index = None self.start = -1 self.end = -1 self._identifiers = identifiers self._may_have_internal_variables = False try: self._split(string) except ValueError: pass else: self._finalize() def get_replaced_base(self, variables): if self._may_have_internal_variables: return variables.replace_string(self.base) return self.base def _finalize(self): self.identifier = self._variable_chars[0] self.base = ''.join(self._variable_chars[2:-1]) self.end = self.start + len(self._variable_chars) if self._has_list_or_dict_variable_index(): self.index = ''.join(self._list_and_dict_variable_index_chars[1:-1]) self.end += len(self._list_and_dict_variable_index_chars) def _has_list_or_dict_variable_index(self): return self._list_and_dict_variable_index_chars\ and self._list_and_dict_variable_index_chars[-1] == ']' def _split(self, string): start_index, max_index = self._find_variable(string) self.start = start_index self._open_curly = 1 self._state = self._variable_state self._variable_chars = [string[start_index], '{'] self._list_and_dict_variable_index_chars = [] self._string = string start_index += 2 for index, char in enumerate(string[start_index:]): index += start_index # Giving start to enumerate only in Py 2.6+ try: self._state(char, index) except StopIteration: return if index == max_index and not self._scanning_list_variable_index(): return def _scanning_list_variable_index(self): return self._state in [self._waiting_list_variable_index_state, self._list_variable_index_state] def _find_variable(self, string): max_end_index = string.rfind('}') if max_end_index == -1: raise ValueError('No variable end found') if self._is_escaped(string, max_end_index): return self._find_variable(string[:max_end_index]) start_index = self._find_start_index(string, 1, max_end_index) if start_index == -1: raise ValueError('No variable start found') return start_index, max_end_index def _find_start_index(self, string, start, end): index = string.find('{', start, end) - 1 if index < 0: return -1 if self._start_index_is_ok(string, index): return index return self._find_start_index(string, index+2, end) def _start_index_is_ok(self, string, index): return string[index] in self._identifiers\ and not self._is_escaped(string, index) def _is_escaped(self, string, index): escaped = False while index > 0 and string[index-1] == '\\': index -= 1 escaped = not escaped return escaped def _variable_state(self, char, index): self._variable_chars.append(char) if char == '}' and not self._is_escaped(self._string, index): self._open_curly -= 1 if self._open_curly == 0: if not self._is_list_or_dict_variable(): raise StopIteration self._state = self._waiting_list_variable_index_state elif char in self._identifiers: self._state = self._internal_variable_start_state def _is_list_or_dict_variable(self): return self._variable_chars[0] in ('@','&') def _internal_variable_start_state(self, char, index): self._state = self._variable_state if char == '{': self._variable_chars.append(char) self._open_curly += 1 self._may_have_internal_variables = True else: self._variable_state(char, index) def _waiting_list_variable_index_state(self, char, index): if char != '[': raise StopIteration self._list_and_dict_variable_index_chars.append(char) self._state = self._list_variable_index_state def _list_variable_index_state(self, char, index): self._list_and_dict_variable_index_chars.append(char) if char == ']': raise StopIteration