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58 lines
2.5 KiB
C
58 lines
2.5 KiB
C
/*************************************
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* C02 Input File Parsing Routines *
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*************************************/
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#define TF(x) (x) ? TRUE : FALSE;
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enum trmtxts {CONSTANT, VARIABLE, ARRAY, FUNCTION};
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enum etypes {ETDEF, ETMAC}; //Definition Types
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char word[LINELEN]; //Word parsed from source file
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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 cnstnt; //Value of Parsed Constant
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char defnam[MAXDEF+1][VARLEN+1]; //Definition Name Table
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char deftxt[MAXDEF+1][DEFLEN+1]; //Definition Text Table
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int defcnt; //Number of Definitions Defined
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int match(char c); //Does Next Character match c
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int inbtwn(char mn, char mx); //Is Next Character in Range ()mn - mx)
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int isprnt(); //Is Next Character Printable
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int isalpa(); //Is Next Character Alphabetic
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int isanum(); //Is Next Character AlphaNumeric
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int isdec(); //Is Next Character a Decimal Digit
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int ishexd(); //Is Next Character a Hexadecimal Digit
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int isbin(); //Is Next Character a Binary Digit
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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 isspc(); //Is Next Character a Space
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int isapos(); //Is Next Character an Apostrophe
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int isvpre(); //Is Next Character a Value Prefix
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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 wordis(char *s); //Does word match s
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char getnxt(); //Return Next Character and Advance
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int look(char c); //Look for Character
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void expect(char c); //Look for Character and Exit if not found
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void skpchr(); //Advance to Next Character
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void skpeol(); //Skip to End of Line
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void skpspc(); //Advance to Next Printable Character
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void skpcmt(); //Skip to End of Comment
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void getwrd(); //Get Next Word
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void expdef(); //Check for and Expand Definition
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int prsdec(); //Get Decimal Number
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void prscon(int maxval); //Parse a Constant
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void prsopr(); //Parse Arithmetic Operator
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void prsvar(); //Parse Variable
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