codelex.h

linux 下类似于TC功能的编译器,但还没有完成,希望大家共同研究

#define MAXIDLEN   20     // length of identifiers
#define NRW        34     // number of reserved words

char* keyword[NRW + 1] =
{
	"", /* place holder */
	"auto","break","case","char","const","continue","default","do","double","else","enum",
	"extern","float","for","goto","if","inline","int","long","register","return","short",
	"signed","sizeof","static","struct","switch","typedef","union","unsigned","void",
	"volatile","while","__asm__"
};

enum symtype
{
	SYM_NULL,
	SYM_IDENTIFIER,
	SYM_NUMBER,
	SYM_PLUS,
	SYM_MINUS,
	SYM_TIMES,
	SYM_SLASH,
	SYM_ODD,
	SYM_EQU,
	SYM_NEQ,
	SYM_LES,
	SYM_LEQ,
	SYM_GTR,
	SYM_GEQ,
	SYM_LPAREN,
	SYM_RPAREN,
	SYM_COMMA,
	SYM_SEMICOLON,
	SYM_PERIOD,
	SYM_BECOMES,
	SYM_BEGIN,
	SYM_END,
	SYM_IF,
	SYM_THEN,
	SYM_WHILE,
	SYM_DO,
	SYM_CALL,
	SYM_CONST,
	SYM_VAR,
	SYM_PROCEDURE,
	SYM_READ,
	SYM_WRITE,
	SYM_REPEAT,
	SYM_UNTIL,
	SYM_ELSE,
	SYM_LBRACKET,
	SYM_RBRACKET,
	SYM_SELFADD,
	SYM_SELFMINUS
};