util.c


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#include "util.h"

void string_truncate(char *string, size_t max_len) {
	size_t len = strlen(string) + 1;
	if (len <= max_len) return;

	strncpy(&string[max_len - 4], "...\0", 4);
}

void string_wrap(char *string, size_t max_len, size_t max_lines) {
	char *line = string;

	for (size_t i = 1; i < max_lines; i++) {
		char *p = line;
		char *prev;
		do {
			prev = p;
			p = strchr(prev+1, ' ');
		} while (p && p - line < (int)max_len);

		if (!p && strlen(line) < max_len) break;

		if (prev && prev != line) {
			line = prev + 1;
			*prev = '\n';
		}
	}
	string_truncate(line, max_len);
}