void main (void) {
pdata char buff[MAXLINE];
/*Required for Serial Interface*/
SCON = 0x52; /*Serial port configuration*/
TMOD = 0x20;
TCON = 0x40;
TH1 = 0xf3; /*2403 baudrate @12mhz*/
while(TRUE){
memset(buff, 0, sizeof(buff));
prtline("Enter Line: ");
getline(buff);
PROMPT;
puts(buff);
/*Reverse the characters in the line*/
/*Reverse the words in the line*/
rev_word(buff, buff + strlen(buff) - 2);
reverse_words(buff);
PROMPT;
puts(buff);
/*Convert the line to its original form*/
rev_word(buff, buff + strlen(buff) - 2);
reverse_words(buff);
/*Sort the characters in the words in alphabetical order*/
alph_sort_words(buff);
PROMPT;
puts(buff);
}
}
//
//Finds words in the char *string. When a word is found,
//reverse_words() will keep track of the starting and ending
//position. We apply rev_word(), which
//reverses a word
//
void reverse_words(char *str) {
char *itor = str;
char *start;
bool start_set = FALSE; /*Has char *start been set*/
bool prev = FALSE;
//Loop entire char *str, until we find the null plug.
//When a word is found apply rev_word()
while (*itor ) {
/*New word found*/
if (!isspace(*itor)) {
prev = TRUE;
if(start_set == FALSE){
start = itor;
start_set = TRUE;
}
++itor;
/*Skip whitespace */
}else if (isspace(*itor) && prev == FALSE) {
++itor;
continue;
/*We are at the end of a word. Apply operation*/
}else if (isspace(*itor) && prev == TRUE) {
rev_word(start, --itor);
++itor;
prev = FALSE;
start_set = FALSE;
}
}
}
/* prints out info table as a final step of the program */
void
print_table(char table[][21], int nwords, int numb[])
{
int a;
char srev[21];
printf(" \n\n Here is list of SORTED and then REVERSED words : \n\n");
printf("****************************************************\n");
printf("* %-3s * %-21s * %-8s * %-7s *\n","#","Reversed Word","#Ocured","Length");
printf("****************************************************\n");
for (a=0;a<nwords;a++)
printf ("* %-3d * %-21s * %-8d * %-7d *\n",a+1,rev_word(table[a],srev),numb[a],strlen(table[a]));
printf("****************************************************\n");
}
void rev_text_2(char *text)
{
char tmp;
unsigned i, j, len;
len = strlen(text);
for(i=0; i < (len/2); i++) {
tmp = text[i];
text[i] = text[len-i-1];
text[len-i-1] = tmp;
}
j = 0;
for(i=0; i < len; i++) {
if( text[i] == ' ') {
rev_word(text, j, i-1);
print_word(text,j, i-1);
j = i+1;
}
}
print_word("\n", 0, 1);
}
