tweaks: simplify two fragments of code, eliding useless character copying

src/chars.c

@@ -648,20 +648,13 @@ char *mbrevstrpbrk(const char *head, const char *accept, const char *pointer)
 #endif /* !NANO_TINY */
 
 #if defined(ENABLE_NANORC) && (!defined(NANO_TINY) || defined(ENABLE_JUSTIFY))
-/* Return TRUE if the given string contains at least one blank character,
+/* Return TRUE if the given string contains at least one blank character. */
- * and FALSE otherwise. */
 bool has_blank_char(const char *string)
 {
-	char symbol[MAXCHARLEN];
+	while (*string != '\0' && !is_blank_char(string))
+		string += char_length(string);
 
-	while (*string != '\0') {
+	return *string;
-		string += collect_char(string, symbol);
-
-		if (is_blank_char(symbol))
-			return TRUE;
-	}
-
-	return FALSE;
 }
 #endif /* ENABLE_NANORC && (!NANO_TINY || ENABLE_JUSTIFY) */
 

src/text.c

@@ -1453,21 +1453,12 @@ ssize_t break_line(const char *textstart, ssize_t goal, bool snap_at_nl)
  * "indentation" of a line is the leading consecutive whitespace. */
 size_t indent_length(const char *line)
 {
-	size_t len = 0;
+	const char *start = line;
-	char onechar[MAXCHARLEN];
-	int charlen;
 
-	while (*line != '\0') {
+	while (*line != '\0' && is_blank_char(line))
-		charlen = collect_char(line, onechar);
+		line += char_length(line);
 
-		if (!is_blank_char(onechar))
+	return (line - start);
-			break;
-
-		line += charlen;
-		len += charlen;
-	}
-
-	return len;
 }
 #endif