You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
59 lines
1.2 KiB
59 lines
1.2 KiB
char *getLine(void);
|
|
char *trim(char *phrase);
|
|
|
|
|
|
char *getLine(void) {
|
|
|
|
const size_t sizeIncrement = 10;
|
|
char *buffer = malloc(sizeIncrement);
|
|
char *currentPosition = buffer;
|
|
size_t maximumLength = sizeIncrement;
|
|
size_t length = 0;
|
|
int character;
|
|
|
|
if (currentPosition == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
while (1) {
|
|
character =fgetc(stdin);
|
|
if (character == '\n') {
|
|
break;
|
|
}
|
|
if (++length >= maximumLength) {
|
|
char *newBuffer = (char*) realloc(buffer, maximumLength += sizeIncrement);
|
|
if (newBuffer == NULL) {
|
|
free(buffer);
|
|
return NULL;
|
|
}
|
|
currentPosition = newBuffer + (currentPosition - buffer);
|
|
buffer = newBuffer;
|
|
}
|
|
*currentPosition++ = character;
|
|
}
|
|
*currentPosition = '\0';
|
|
return buffer;
|
|
}
|
|
|
|
|
|
char *trim(char *phrase) {
|
|
|
|
char *old = phrase;
|
|
char *new = phrase;
|
|
|
|
// skip blank chars
|
|
while (*old == ' ') {
|
|
old++;
|
|
}
|
|
|
|
while (*old) {
|
|
*new = *old;
|
|
new++;
|
|
old++;
|
|
}
|
|
|
|
// set string end char
|
|
*new = 0;
|
|
|
|
return (char*) realloc(phrase, strlen(phrase) + 1);
|
|
}
|