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WHATNEXT.C
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C/C++ Source or Header
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1988-02-01
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4KB
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74 lines
/* *************************************************************** */
/* This program reads a series of words from the command line, */
/* and displays all but the last on the monitor. The last is a */
/* series of characters which are used as input comparisons. One */
/* character is read from the keyboard. If it is one of the */
/* characters in the comparison list, its number is returned to */
/* DOS as the errorlevel command. If the character does not exist */
/* in the list, a zero is returned. Example follows; */
/* */
/* WHATNEXT What model do you want? ALR%3T */
/* */
/* What model do you want? <---- displayed on monitor */
/* If key a or A is hit, errorlevel 1 is returned. */
/* If key l or L is hit, errorlevel 2 is returned. */
/* If key r or R is hit, errorlevel 3 is returned. */
/* If key % is hit, errorlevel 4 is returned. */
/* If key 3 is hit, errorlevel 5 is returned. */
/* If key t or T is hit, errorlevel 6 is returned. */
/* If any other key is hit, errorlevel 0 is returned. */
/* */
/* The question must be on one line. */
/* Up to nine different keys can be used. */
/* The errorlevel can be interpreted in a batchfile. */
/* *************************************************************** */
#include "stdio.h"
#include "ctype.h"
#include "conio.h"
#include "process.h"
main(int number,char *name[])
{
int index; /* a counter and incrementing variable */
int c; /* the character read in for comparison */
int code; /* the resulting errorlevel returned to */
char next_char; /* used for the comparison loop */
char *point; /* a dummy pointer used for convenience */
/* At least one group must be used for this */
/* filename, and one group used for the */
/* required fields, so less than three allows */
/* for no question. */
if (number < 3) {
printf("No question given on command line\n");
exit(0);
}
/* print out words 2 to n-1, the question */
number--;
for(index = 1;index < number;index++) {
printf("%s ",name[index]);
}
/* get the users response and make it uppercase */
c = getch();
printf("%c\n",c);
if (islower(c))
c = toupper(c);
point = name[number];/* point to the last pointer on the inputs */
code = 0;
index = 0;
do { /* search across allowed responses in last word */
next_char = *(point + index);
if (islower(next_char))
next_char = toupper(next_char); /* make it uppercase */
if(next_char == c) /* if a match is found */
code = index + 1; /* save the number of the match */
index++;
} while (*(point + index)); /* until NULL terminator found */
exit(code); /* return the errorcode to the system */
}