Sha256: 9b4481bc0196d8771926f65c31bb88bb0e44b30ee80d3b8051dfaa2cc4094081
Contents?: true
Size: 1.17 KB
Versions: 193
Compression:
Stored size: 1.17 KB
Contents
#include <ctype.h>
#include <stdlib.h>
static int is_first_letter_of_word(int character, int preceding_character)
{
return isalpha(character)
&& ((preceding_character == ' ')
|| (preceding_character == '-')) ? 1 : 0;
}
static int count_words(const char phrase[])
{
int count = 0;
if (phrase != NULL)
count = 1; /* first word */
else
return count;
for (size_t i = 1; phrase[i] != '\0'; ++i)
if (is_first_letter_of_word(phrase[i], phrase[i - 1]))
++count; /* subsequent words */
return count;
}
char *abbreviate(const char phrase[])
{
char *acronym = NULL;
if (phrase == NULL || phrase[0] == '\0')
return NULL; /* invalid argument */
acronym = calloc(count_words(phrase) + 1, sizeof phrase[0]);
if (!acronym)
return NULL; /* calloc failed */
acronym[0] = toupper(phrase[0]); /* first letter of first word */
for (size_t i = 1, j = 1; phrase[i] != '\0'; ++i) {
if (is_first_letter_of_word(phrase[i], phrase[i - 1]))
acronym[j++] = toupper(phrase[i]); /* first letter of subsequent words */
}
return acronym;
}
Version data entries
193 entries across 193 versions & 1 rubygems