mirror of https://github.com/RevCurtisP/C02.git
63 lines
3.3 KiB
C
63 lines
3.3 KiB
C
/*************************************
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* C02 Input File Parsing Routines *
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*************************************/
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enum stypes {LITERAL, VARIABLE, REGISTER, ARRAY, STRUCTURE, FUNCTION, ADDRESS, INTEGER}; //Symbol Types
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enum etypes {ETDEF, ETMAC}; //Definition Types
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char nxtwrd[LINELEN]; //Next Word (from DEFINE lookup)
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int nxtptr; //Pointer to next character in nxtwrd
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char value[LINELEN]; //Term parsed from equation
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int valtyp; //Value Type
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char oper; //Arithmetic or Bitwise Operator
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int litval; //Value of Parsed Literal
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char connam[MAXCON+1][CONLEN+1]; //Constant Name Table
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int conval[MAXCON+1]; //Constant Value Table
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int concnt; //Number of Constants Defined
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int conidx; //Index into Constant Tables
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char defnam[CONLEN+1]; //Defined Constant Name
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int invasc; //Invert ASCII Flag
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int mskasc; //Set High Bit Flag
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int match(char c); //Does Next Character match c
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int isalph(); //Is Next Character Alphabetic
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int isanum(); //Is Next Character AlphaNumeric
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int isapos(); //Is Next Character an Apostrophe
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int isbin(); //Is Next Character a Binary Digit
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int isbpre(); //Is Next Character a Binary Prefix
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int isbtop(); //Is Next Character a Byte Operator
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int isdec(); //Is Next Character a Decimal Digit
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int iscpre(); //Is Next Character a Constant Prefix
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int ishexd(); //Is Next Character a Hexadecimal Digit
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int islpre(); //Is Next Character a Literal Prefix
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int isnl(); //Is Next Character a NewLine
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int isnpre(); //Is Next Character a Numeric Prfix
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int isoper(); //Is Next Character an Operator
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int ispopr(); //Is Next Character a Post-Operator
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int isprnt(); //Is Next Character Printable
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int isspc(); //Is Next Character a Space
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int isszop(); //Is Next Character the SizeOf Operator
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int isvpre(); //Is Next Character a Value Prefix
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int isxfop(); //Is Next Character the IndexOf Operator
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int isxpre(); //Is Next Character an Expression Prefix
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void expect(char c); //Look for Character and Exit if not found
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char getnxt(); //Return Next Character and Advance
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void getstr(); //Get String
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int gettyp(); //Get Value Type
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void getwrd(); //Get Next Word
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int look(char c); //Look for Character
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int prsbyt(); //Parse Numeric Byte
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void prslit(); //Parse Literal
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int prsnum(int maxval); //Parse Numeric
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void prsopr(); //Parse Arithmetic Operator
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int prspst(char oper, char trmntr, int isint, char* name, char* index, char indtyp, char ispntr); //Parse Post Operator
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int psizof(void); //Parse SizeOf Operator
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int pidxof(void); //Parse SizeOf Operator
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void skpchr(); //Skip Next Character
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void skpcmt(int exslsh); //Skip to End of Comment
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void skpspc(); //Advance to Next Printable Character
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int wordis(char *s); //Does word match s
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