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#ifndef LEXER
#define LEXER
typedef enum TokenType {
ERR,
EOL,
INDENT,
STRING,
INT,
OPEN_PAREN,
CLOSE_PAREN,
START_COMMENT,
JUSTIFICATION,
CONTRADICTION,
PREMISE,
ASSUMPTION,
NEGATION,
CONJUNCTION,
DISJUNCTION,
IMPLICATION,
BI_IMPLICATION,
EXPLOSION,
ELIMINATION,
INTRODUCTION
} tokenType_t;
typedef struct Token {
tokenType_t type;
void* value;
} token_t;
token_t init_token(tokenType_t type, void* value);
typedef struct TokenSet {
token_t* tokens;
int count;
} tokenSet_t;
tokenSet_t init_tokenset(token_t* tokens, int count);
char* tttos(tokenType_t tokenType);
int advance_whitespace(char** linePointer);
tokenSet_t lex_line(char* line);
token_t lex_first_token(char** content);
token_t lex_first_string(char** content);
token_t lex_first_int(char** content);
#endif
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