void fuzzy_time_to_words(int hours, int minutes, char* words, size_t length) {
int fuzzy_hours = hours;
int fuzzy_minutes = ((minutes + 2) / 5) * 5;
// Handle hour & minute roll-over.
if (fuzzy_minutes > 55) {
fuzzy_minutes = 0;
fuzzy_hours += 1;
if (fuzzy_hours > 23) {
fuzzy_hours = 0;
}
}
size_t remaining = length;
memset(words, 0, length);
if (fuzzy_minutes != 0 && (fuzzy_minutes >= 10 || fuzzy_minutes == 5 || fuzzy_hours == 0 || fuzzy_hours == 12)) {
if (fuzzy_minutes == 15) {
remaining -= append_hour(words, remaining, fuzzy_hours);
remaining -= append_string(words, remaining, " ");
remaining -= append_string(words, remaining, STR_AND);
remaining -= append_string(words, remaining, " ");
remaining -= append_string(words, remaining, STR_QUARTER);
} else if (fuzzy_minutes == 45) {
remaining -= append_string(words, remaining, STR_QUARTER);
remaining -= append_string(words, remaining, " ");
remaining -= append_string(words, remaining, STR_TO);
remaining -= append_string(words, remaining, " ");
fuzzy_hours = (fuzzy_hours + 1) % 24;
remaining -= append_hour(words, remaining, fuzzy_hours);
} else if (fuzzy_minutes == 30) {
remaining -= append_string(words, remaining, STR_HALF);
remaining -= append_string(words, remaining, " ");
fuzzy_hours = (fuzzy_hours + 1) % 24;
remaining -= append_hour(words, remaining, fuzzy_hours);
} else if (fuzzy_minutes < 30) {
remaining -= append_hour(words, remaining, fuzzy_hours);
remaining -= append_string(words, remaining, " ");
remaining -= append_string(words, remaining, STR_AND);
remaining -= append_string(words, remaining, " ");
remaining -= append_number(words, fuzzy_minutes);
} else {
remaining -= append_number(words, 60 - fuzzy_minutes);
remaining -= append_string(words, remaining, " ");
remaining -= append_string(words, remaining, STR_TO);
remaining -= append_string(words, remaining, " ");
fuzzy_hours = (fuzzy_hours + 1) % 24;
remaining -= append_hour(words, remaining, fuzzy_hours);
}
}
if (fuzzy_minutes == 0 && (fuzzy_hours == 0 || fuzzy_hours == 12)) {
remaining -= append_hour(words, remaining, fuzzy_hours);
}
if (fuzzy_minutes == 0 && !(fuzzy_hours == 0 || fuzzy_hours == 12)) {
fuzzy_hours = fuzzy_hours;
remaining -= append_number(words, fuzzy_hours);
remaining -= append_string(words, remaining, " ");
if (fuzzy_hours==1) {
remaining -= append_string(words, remaining, STR_OH_CLOCK);
} else if (fuzzy_hours<5) {
remaining -= append_string(words, remaining, STR_OH_MCLOCK);
} else {
remaining -= append_string(words, remaining, STR_OH_PCLOCK);
}
}
}
tfs_token_array_t *tfs_posix_parse(const char *bytes, tfs_handle_string_callback handle_error, tfs_error_e *outError) {
tfs_token_array_t *tokens = tfs_init_token_array(10);
tfs_token_t *new_token = NULL;
int literal_len = 0;
const char *p = bytes;
while (*p) {
if (*p == '%') {
if (literal_len) {
new_token = tfs_append_token(tokens);
new_token->is_literal = 1;
if (literal_len > sizeof(new_token->text))
literal_len = sizeof(new_token->text);
memcpy(new_token->text, p-literal_len, literal_len);
literal_len = 0;
}
p++;
if (*p == '\0') {
*outError = TFS_PARSE_ERROR;
tfs_free_token_array(tokens);
return NULL;
}
if (*p == 'n' || *p == 't' || *p == '%') {
new_token = tfs_append_token(tokens);
new_token->is_literal = 1;
if (*p == 'n') {
new_token->text[0] = '\n';
} else if (*p == 't') {
new_token->text[0] = '\t';
} else {
new_token->text[0] = *p;
}
} else if (*p == 'D') {
new_token = append_month(tokens, TFS_2DIGIT);
new_token = append_literal_char(tokens, '/');
new_token = append_day(tokens, TFS_MONTH, TFS_2DIGIT);
new_token = append_literal_char(tokens, '/');
new_token = append_year(tokens, TFS_CENTURY, TFS_2DIGIT);
} else if (*p == 'F') {
new_token = append_year(tokens, TFS_ERA, TFS_NUMBER);
new_token = append_literal_char(tokens, '-');
new_token = append_month(tokens, TFS_2DIGIT);
new_token = append_literal_char(tokens, '-');
new_token = append_day(tokens, TFS_MONTH, TFS_2DIGIT);
} else if (*p == 'R') {
new_token = append_hour(tokens, TFS_DAY, TFS_2DIGIT);
new_token = append_literal_char(tokens, ':');
new_token = append_minute(tokens, TFS_HOUR, TFS_2DIGIT);
} else if (*p == 'r') {
new_token = append_hour(tokens, TFS_PERIOD, TFS_2DIGIT);
new_token = append_literal_char(tokens, ':');
new_token = append_minute(tokens, TFS_HOUR, TFS_2DIGIT);
new_token = append_literal_char(tokens, ':');
new_token = append_second(tokens, TFS_MINUTE, TFS_2DIGIT);
new_token = append_literal_char(tokens, ' ');
new_token = append_ampm(tokens, TFS_ABBREV);
} else if (*p == 'T') {
new_token = append_hour(tokens, TFS_DAY, TFS_2DIGIT);
new_token = append_literal_char(tokens, ':');
new_token = append_minute(tokens, TFS_HOUR, TFS_2DIGIT);
new_token = append_literal_char(tokens, ':');
new_token = append_second(tokens, TFS_MINUTE, TFS_2DIGIT);
} else if (*p == 'v') {
new_token = append_day(tokens, TFS_MONTH, TFS_NUMBER);
new_token = append_literal_char(tokens, '-');
new_token = append_month(tokens, TFS_ABBREV);
new_token = append_literal_char(tokens, '-');
new_token = append_year(tokens, TFS_ERA, TFS_NUMBER);
} else {
int i;
for (i=0; i<sizeof(posix_tokens)/sizeof(posix_tokens[0]); i++) {
if (posix_tokens[i].text[1] == *p) {
new_token = tfs_append_token(tokens);
memcpy(new_token, &posix_tokens[i].token, sizeof(tfs_token_t));
break;
}
}
if (i == sizeof(posix_tokens)/sizeof(posix_tokens[0])) {
if (handle_error) {
char error_buf[1024];
snprintf(error_buf, sizeof(error_buf), "Unrecognized percent code: %c", *p);
handle_error(error_buf, sizeof(error_buf), tokens);
}
*outError = TFS_PARSE_ERROR;
tfs_free_token_array(tokens);
return NULL;
}
}
} else {
literal_len++;
}
p++;
}
if (literal_len) {
new_token = tfs_append_token(tokens);
new_token->is_literal = 1;
if (literal_len > sizeof(new_token->text))
literal_len = sizeof(new_token->text);
memcpy(new_token->text, p-literal_len, literal_len);
}
return tokens;
}
