Returns a string copy of the input character sequence, with each group of consecutive characters that match this matcher replaced by a single replacement character. For example: CharMatcher.anyOf("eko").collapseFrom("bookkeeper", '-') ... returns "b-p-r". The de
(CharSequence sequence, char replacement)
| 900 | * @return the new string |
| 901 | */ |
| 902 | public String collapseFrom(CharSequence sequence, char replacement) { |
| 903 | // This implementation avoids unnecessary allocation. |
| 904 | int len = sequence.length(); |
| 905 | for (int i = 0; i < len; i++) { |
| 906 | char c = sequence.charAt(i); |
| 907 | if (matches(c)) { |
| 908 | if (c == replacement && (i == len - 1 || !matches(sequence.charAt(i + 1)))) { |
| 909 | // a no-op replacement |
| 910 | i++; |
| 911 | } else { |
| 912 | StringBuilder builder = new StringBuilder(len).append(sequence, 0, i).append(replacement); |
| 913 | return finishCollapseFrom(sequence, i + 1, len, replacement, builder, true); |
| 914 | } |
| 915 | } |
| 916 | } |
| 917 | // no replacement needed |
| 918 | return sequence.toString(); |
| 919 | } |
| 920 | |
| 921 | /** |
| 922 | * Collapses groups of matching characters exactly as {@link #collapseFrom} does, except that |
no test coverage detected