int reverse_sentence(char *s){
char *begin, *end;
if(s==NULL)
return 1;
/* begin reverse the entire sentence */
begin=end=s;
while(*end!='\0'){
end++;
}
end--;
reverse_word(begin, end);
/* begin reverse every word in the sentence */
begin=end=s;
while(*begin != '\0'){
if(*begin==' '){
end=++begin;
}else if(*end==' ' || *end=='\0'){
reverse_word(begin, --end);
begin=++end;
}else{
end++;
}
}
return 0;
}
static char *reverse_phrase(char *start, char *end)
{
char *word_start = start, *word_end = NULL;
while ((word_end = memchr(word_start, ' ', end - word_start)) != NULL) {
reverse_word(word_start, word_end - 1);
word_start = word_end + 1;
}
reverse_word(word_start, end);
return reverse_word(start, end);
}
static char *reverse_phrase(char *start, char *end)
{
printk(KERN_INFO "Abin, reverse_phrase function called");
char *word_start = start, *word_end = NULL;
while ((word_end = memchr(word_start, ' ', end - word_start)) != NULL) {
reverse_word(word_start, word_end - 1);
word_start = word_end + 1;
}
reverse_word(word_start, end);
return reverse_word(start, end);
}
// 按单词反转字符串
char *reverse_sentence(char *s) {
char *p = s;
char *q = s;
while (*q != '\0') {
if (*q == ' ') { //查到一个单词
reverse_word(p, q - 1);
q++; //指向下一个单词道字符
p = q;
} else
q++;
}
reverse_word(p, q - 1); //逆序最后一个单词
reverse_word(s, q - 1); //整个句子逆序
return s;
}
void reverse(char* string)
{
int front =0 ;
int end = 0;
int strlength;
while(1)
{
//if it reaches the end of the word it must reverse it
if ((*(string + end) == ' ') || (*(string + end) == '\0'))
{
strlength = end - front;
reverse_word((string + front), strlength);
if (*(string + end) == '\0')
{
break;
}
else if (*(string + end) == ' ')
{
front = front + strlength + 1;
end++;
}
}
else
{
end++;
}
}
}
int reverse(char a[])
{
int i,j,k,s=0,e=0,len=0;
char t;
for(i=0;a[i]!='\0';i++)//finding length of string
continue;
len=i;
for(i=0;i<len/2;i++)//reversing string
{
t=a[i];
a[i]=a[len-i-1];
a[len-i-1]=t;
}
//printf("%s\n",a); reverse of original string
s=0;
for(j=0;a[j];j++)
{
if(a[j+1]==' '||a[j+1]=='\0')
{
e=j;
reverse_word(a,s,e);//s:starting position of word e:ending position of word
s=e+2;
}
}
printf("the given string after reversing by word is:\n");
printf("\n%s\n",a);
return 0;
}
int main(){
char word[1000];
int number = 0;
scanf("%d", &number);
reverse_word(word, number);
}
void reverse_word(char *array, int n){
if(n>0){
scanf("%s\n", array);
reverse_word(array, n-1);
printf("%s\n", array);
}
return;
}
int
main()
{
int len = strlen(s);
reverse_str(s, s+len-1);
reverse_word(s);
printf("%s\n", s);
return 0;
}
uint32_t reverse_doc( uint8_t *mem, uint32_t sz ) {
uint32_t x, y;
uint32_t last_known_pos = -1;
for( x = 0; x < sz && !reverse; x ++ ) {
for( y = x; y < sz && !IS_WHITE_SPACE(mem[y]); y ++ );
reverse_word( &mem[x], y - x );
x += (y - x);
last_known_pos = x;
}
return last_known_pos;
}
int main()
{
char str[100];
printf("input: ");
gets(str);
reverse_str(str, str + strlen(str) - 1);
reverse_word(str);
printf("output : %s\n",str);
return 0;
}
int main(void)
{
char string[100] = "Bhavya is good";
char *string1 = string;
int c = 0;
while (*(string1++))
{
c++;
}
reverse_word(string,c);
printf("The reversed string is: %s\n",string);
reverse(string);
printf("The reversed words are: %s\n",string);
return 0;
}
int main()
{
char buf[128];
char l[128];
while(memset(buf, 0, 128), memset(l, 0,128), fgets(buf, 128, stdin) != NULL)
{
if(buf[0] != '\n')
{
trim_space(buf);
reverse(buf);
reverse_word(buf, l);
printf("reverse:\n%s\n", l);
}
}
return 0;
}
char* reverse_words_in_buff(char **in_string){
char *string;
char *word;
char *word_end;
char tmp_char;
int i;
int len;
// Reverse string
string = *in_string;
fprintf(stderr, "reverse_words_in_buff( %s );\n", string);
fprintf(stderr, "string_start: %c, string_end: %c, string: %s\n", string[0], string[strlen(string)-1],string);
len = strlen(*in_string);
for(i = 0; i < len/2; i++) {
tmp_char = string[i];
string[i] = string[len - i - 1];
string[len - i - 1] = tmp_char;
}
fprintf(stderr, "string_start: %c, string_end: %c, string: %s\n", string[0], string[strlen(string)-1],string);
// Reverse words
word = 0;
word = strtok(string, " ");
while( 0 != reverse_word(word) ){
word = strtok(0, " ");
}
string[strlen(string)-1] = '\0';
fprintf(stderr, "string_start (%p): %c, string_end (%p): %c, string: \"%s\"\n", string, string[0], &string[strlen(string)-1], string[strlen(string)-1],string);
fprintf(stderr, "reverse_words_in_buff(): return %s\n", string);
fprintf(stderr, "reverse_words_in_buff(): return %s\n", *in_string);
return *in_string;
}
int main (int argc, char **argv)
{
printf ("%s\n", reverse_word ("student am I"));
return 0;
}
