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eiffel_examiner.py
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eiffel_examiner.py
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import string
import math
from codestat_token import Token
from codestat_tokenizer import Tokenizer
from token_builders import (
InvalidTokenBuilder,
WhitespaceTokenBuilder,
NewlineTokenBuilder,
EscapedStringTokenBuilder,
IntegerTokenBuilder,
IntegerExponentTokenBuilder,
PrefixedIntegerTokenBuilder,
RealTokenBuilder,
RealExponentTokenBuilder,
IdentifierTokenBuilder,
CaseInsensitiveListTokenBuilder,
CaseSensitiveListTokenBuilder,
LeadToEndOfLineTokenBuilder
)
from examiner import Examiner
class EiffelExaminer(Examiner):
@staticmethod
def __escape_z__():
InvalidTokenBuilder.__escape_z__()
WhitespaceTokenBuilder.__escape_z__()
NewlineTokenBuilder.__escape_z__()
EscapedStringTokenBuilder.__escape_z__()
IntegerTokenBuilder.__escape_z__()
IntegerExponentTokenBuilder.__escape_z__()
PrefixedIntegerTokenBuilder.__escape_z__()
RealTokenBuilder.__escape_z__()
RealExponentTokenBuilder.__escape_z__()
IdentifierTokenBuilder.__escape_z__()
CaseInsensitiveListTokenBuilder.__escape_z__()
CaseSensitiveListTokenBuilder.__escape_z__()
LeadToEndOfLineTokenBuilder.__escape_z__()
return 'Escape ?Z'
def __init__(self, code):
super().__init__()
operand_types = []
whitespace_tb = WhitespaceTokenBuilder()
newline_tb = NewlineTokenBuilder()
integer_tb = IntegerTokenBuilder("'")
integer_exponent_tb = IntegerExponentTokenBuilder("'")
hex_integer_tb = PrefixedIntegerTokenBuilder('0x', False, '0123456789abcdefABCDEF_')
binary_integer_tb = PrefixedIntegerTokenBuilder('0b', False, '01_')
octal_integer_tb = PrefixedIntegerTokenBuilder('0c', False, '01234567_')
real_tb = RealTokenBuilder(False, False, "'")
real_exponent_tb = RealExponentTokenBuilder(False, False, 'E', "'")
operand_types.append('number')
leads = '_'
extras = '_'
identifier_tb = IdentifierTokenBuilder(leads, extras)
operand_types.append('identifier')
quotes = ['"', "'"]
string_tb = EscapedStringTokenBuilder(quotes, 0)
operand_types.append('string')
comment_tb = LeadToEndOfLineTokenBuilder('--', True, 'comment')
known_operators = [
':=', '=', '/=',
'<', '>', '<=', '>=',
'+', '-', '*', '/', '//', '\\\\', '^',
'|..|', '..',
'and', 'or', 'xor', 'not',
'and then', 'or else', 'implies',
'.',
'@', '#', '|', '&'
]
self.unary_operators = [
'+', '-', 'not',
'@', '#', '|', '&'
]
self.postfix_operators = []
groupers = ['(', ')', ',', '[', ']', '{', '}', ':', ';']
group_starts = ['(', '[', ',', '{']
group_mids = [',', ';', ':']
group_ends = [')', ']', '}']
groupers_tb = CaseInsensitiveListTokenBuilder(groupers, 'group', False)
known_operator_tb = CaseSensitiveListTokenBuilder(known_operators, 'operator', False)
keywords = [
'across', 'agent', 'alias', 'all', 'as', 'assign', 'attribute',
'check', 'class', 'convert', 'create',
'debug', 'deferred', 'do',
'else', 'elseif', 'end', 'ensure', 'expanded', 'export', 'external',
'feature', 'from', 'frozen',
'if', 'implies', 'inherit', 'inspect', 'invariant',
'like', 'local', 'loop',
'note',
'obsolete', 'old', 'once', 'only',
'redefine', 'rename', 'require', 'rescue', 'retry',
'select', 'separate',
'then',
'undefine', 'until',
'variant',
'when'
]
keyword_tb = CaseSensitiveListTokenBuilder(keywords, 'keyword', False)
types = [
'Current', 'Precursor', 'Result', 'Void', 'TUPLE'
]
types_tb = CaseSensitiveListTokenBuilder(types, 'type', True)
operand_types.append('type')
values = [
'False', 'True', '?'
]
values_tb = CaseSensitiveListTokenBuilder(values, 'value', True)
operand_types.append('value')
invalid_token_builder = InvalidTokenBuilder()
tokenbuilders = [
newline_tb,
whitespace_tb,
integer_tb,
integer_exponent_tb,
hex_integer_tb,
binary_integer_tb,
octal_integer_tb,
real_tb,
real_exponent_tb,
keyword_tb,
types_tb,
values_tb,
groupers_tb,
known_operator_tb,
identifier_tb,
string_tb,
comment_tb,
self.unknown_operator_tb,
invalid_token_builder
]
tokenizer = Tokenizer(tokenbuilders)
code = self.TrimCtrlZText(code)
ascii_code = self.convert_to_ascii(code)
tokens = tokenizer.tokenize(ascii_code)
tokens = Examiner.combine_adjacent_identical_tokens(tokens, 'invalid operator')
tokens = Examiner.combine_adjacent_identical_tokens(tokens, 'invalid')
self.tokens = tokens
self.convert_identifiers_to_functions()
# self.convert_functions_to_common_functions(functions)
self.calc_statistics()
tokens = self.source_tokens()
tokens = Examiner.join_all_lines(tokens)
self.calc_token_confidence()
self.calc_token_2_confidence()
num_operators = self.count_my_tokens(['operator', 'invalid operator'])
if num_operators > 0:
self.calc_operator_confidence(num_operators)
allow_pairs = []
self.calc_operator_2_confidence(tokens, num_operators, allow_pairs)
self.calc_operator_3_confidence(tokens, num_operators, group_ends, allow_pairs)
self.calc_operator_4_confidence(tokens, num_operators, group_starts, allow_pairs)
self.calc_group_confidence(tokens, group_mids)
operand_types_2 = ['number']
self.calc_operand_n_confidence(tokens, operand_types_2, 2)
self.calc_operand_n_confidence(tokens, operand_types, 4)
self.no_keyword_confidence = 0.2
self.calc_keyword_confidence()
self.calc_paired_blockers_confidence(['{'], ['}'])
self.calc_line_length_confidence(code, self.max_expected_line)