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typedef enum {
Root, NthChild, NthOfType, FirstChild, FirstOfType, Lang
} PseudoType;
typedef struct _PseudoCond {
PseudoType type;
int a, b;
string s;
struct _PseudoCond *next;
} PseudoCond;
typedef enum {
Exists, Equals, Includes, StartsWith, EndsWidth, Contains, LangMatch,
HasClass, HasID
} Operator;
typedef struct _AttribCond {
Operator op;
string name;
string value;
struct _AttribCond *next;
} AttribCond;
typedef enum {
Descendant, Child, Adjacent, Sibling
} Combinator;
typedef struct _SimpleSelector {
string name;
AttribCond *attribs;
PseudoCond *pseudos;
Combinator combinator;
struct _SimpleSelector *context;
} SimpleSelector, *Selector;
string selector_to_string(const Selector selector);
Selector parse_selector(const string selector);
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