| """Behavioral normalization for browser observations; never inspect solutions.""" |
| from decimal import Decimal,InvalidOperation |
| import re |
| ASCII_SPACE=re.compile(r'[ \t\r\n\f]+') |
| BOOLEAN={'disabled','checked','selected','required','multiple','readonly','autofocus','open','reversed'} |
| CASE_INSENSITIVE={'method','dir','type','contenteditable','lang','enctype','formmethod'} |
| FLOATING={'max','min'} |
| INTEGER={'rows','cols','tabindex','colspan','rowspan','width','height'} |
|
|
| def matches(check,observed,target): |
| kind=check['kind'] |
| if kind=='html_text': |
| if not isinstance(observed,dict) or 'text' not in observed:return False |
| text=observed['text'] |
| if observed.get('white_space') in ('pre','pre-wrap','break-spaces'): |
| return text.replace('\r\n','\n')==target.replace('\r\n','\n') |
| if observed.get('white_space')=='pre-line': |
| collapse=lambda s:'\n'.join(re.sub(r'[ \t\f]+',' ',line).strip() for line in s.replace('\r\n','\n').split('\n')) |
| return collapse(text)==collapse(target) |
| return ASCII_SPACE.sub(' ',text).strip()==ASCII_SPACE.sub(' ',target).strip() |
| if kind!='attribute':return observed==target |
| if observed is not None and not isinstance(observed,str):return False |
| name=check['name'].lower() |
| if name=='class':return set((observed or '').split())==set((target or '').split()) |
| if name in BOOLEAN:return (observed is not None)==(target is not None) |
| if name=='hidden': |
| def state(v):return 'absent' if v is None else 'until-found' if v.lower()=='until-found' else 'hidden' |
| return state(observed)==state(target) |
| if observed is None or target is None:return observed==target |
| if name in CASE_INSENSITIVE:return observed.lower()==target.lower() |
| if name in INTEGER: |
| a=re.match(r'^[ \t\r\n\f]*([+-]?[0-9]+)',observed) |
| b=re.match(r'^[ \t\r\n\f]*([+-]?[0-9]+)',target) |
| return bool(a and b and int(a.group(1))==int(b.group(1))) |
| if name in FLOATING or (name=='value' and re.search(r'\b(?:progress|meter)\b',check.get('selector',''))): |
| try: |
| a,b=Decimal(observed),Decimal(target) |
| if a.is_finite() and b.is_finite():return a==b |
| except (InvalidOperation,TypeError,ValueError):pass |
| return observed==target |
|
|
