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/*           FUNKEY.C - a program for redefining fyunction keys  */ 
/*                                                               */ 
/*           Copyright  (C)  1983  Kenneth C. Wood               */ 
/*                                                               */ 
/*           From PC Magazine - - June 1983  Page 424            */ 
/*                                                               */ 
/*     Works with IBM PC-DOS 2.0 - to use it, have on your       */ 
/*     system disk the files:                                    */ 
/*     ANSI.SYS - supplied with DOS                              */ 
/*     CONFIG.SYS - file with the line "device = ansi.sys" in it */ 
/*     and one or more files with the extension .KEY i.e.        */ 
/*     WORDSTAR.KEY, MYOWN.KEY, FUNKEY.KEY, or                   */ 
/*     DOS.KEY - supplied by you and containing                  */ 
/*     your chosen new key definitions, and of course            */ 
/*     FUNKEY.EXE - the compiled and linked FUNKEY.C             */ 
/*                                                               */ 
/*     Now when the system is booted, the ANSI terminal          */ 
/*     emulator device driver will be installed, giving          */ 
/*     you the capability to do marvelous things, including      */ 
/*     redefine the function keys by issuing the command:        */ 
/*              FUNKEY MYOWN.KEY                                 */ 
 
 
#define  SEQ "\033[0;"       /* Initial sequence to ANSI driver */ 
 
#include "stdio.h"          /* Copy in the standard I/O routines */ 
 
main(argc,argv) 
int argc; 
char *argv[]; 
 
{ 
        FILE *fp, *fopen(); 
 
        if  (argc == 1) 
                { 
                printf("\nEnter new key definitions\n\n"); 
                fkey(stdin);         /* get input from keyboard */ 
                } 
        else 
                { 
                fp = fopen(*++argv,"r"); 
                fkey(fp);       /* get input from the file */ 
                } 
} 
 
int count = 0;  /* counter for tracking size of the table */ 
 
fkey(fp) 
FILE *fp; 
{ 
        int c,offset; 
        /* input character and function key identifier */ 
 
        while((c=getch(fp)) != EOF) 
        { 
                switch (c) 
                { 
                case 'f':       /* F1 through F10 */ 
                        offset = 58; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 's':       /* Shift F1 through F10 */ 
                        offset = 83; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 'c':       /* Control F1 through F10 */ 
                        offset = 93; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 'a':       /* Alt F1 through F10 */ 
                        offset = 103; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 'F':       /* F1 through F10 */ 
                        offset = 58; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 'S':       /* Shift F1 through F10 */ 
                        offset = 83; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 'C':       /* Control F1 through F10 */ 
                        offset = 93; 
                        func(getch(fp),offset,fp); 
                        break; 
                case 'A':       /* Alt F1 through F10 */ 
                        offset = 103; 
                        func(getch(fp),offset,fp); 
                        break; 
                default: 
                        printf("Unknown function key\n"); 
                        break; 
                } 
        } 
} 
 
getch(fp) 
/* throw away white space until a character */ 
FILE *fp; 
{ 
int x; 
 
        while((x=getc(fp)) == ' '|| x == '\n' || x == '\t') 
                ;       /* ignore white space */ 
        return(x); 
} 
 
 
func(c,offset,fp) 
/* send out the required definition sequence */ 
int c,offset; 
FILE  *fp; 
{ 
        int x,save; 
 
        save = ' '; 
        while ((x = getch(fp)) != '=') 
                if (x == '0') c = ':'; 
                /* read until get = sign */ 
                /* if character is 0 then F10 was chosen */ 
                /* rather than F1.  Change c so that offset is */ 
                /* calculated correctly */ 
        printf(SEQ); 
        printf("%d",offset+(c-'0')); 
 
/*      putchar(';'); 
        putchar('"'); 
*/ 
        while ((x = getc(fp)) != '\n') 
                { 
                if (x != '!') 
                        { 
/*                      putchar(x);  */ 
                        printf(";%2d",x); 
 
                        if (++count == 128) 
                        { 
                printf("\nTable size exceeded.  Program terminated...\n"); 
                exit(); 
                        } 
                } 
                else 
                        save = x; 
        } 
        /*putchar('"');*/ 
        if (save == '!') 
                { 
                printf(";13p"); 
                count++; 
                } 
        else 
                printf("p"); 
        save = ' '; 
        if (count  == 128) 
        { 
                printf("\nTable size exceeded.  Program terminated...\n"); 
                exit(); 
        } 
} 
 
/* end of Program Funkey.C  */