Collapses groups of matching characters exactly as #collapseFrom does, except that groups of matching characters at the start or end of the sequence are removed without replacement.
(CharSequence sequence, char replacement)
| 1019 | |
| 1020 | |
| 1021 | public String trimAndCollapseFrom(CharSequence sequence, char replacement) { |
| 1022 | // This implementation avoids unnecessary allocation. |
| 1023 | int len = sequence.length(); |
| 1024 | int first = 0; |
| 1025 | int last = len - 1; |
| 1026 | while (first < len && matches(sequence.charAt(first))) { |
| 1027 | first++; |
| 1028 | } |
| 1029 | |
| 1030 | while (last > first && matches(sequence.charAt(last))) { |
| 1031 | last--; |
| 1032 | } |
| 1033 | return (first == 0 |
| 1034 | && last == len - 1) |
| 1035 | ? collapseFrom(sequence, replacement) |
| 1036 | : finishCollapseFrom(sequence, first, last + 1, replacement, new StringBuilder(last + 1 - first), false); |
| 1037 | } |
| 1038 | |
| 1039 | private String finishCollapseFrom( |
| 1040 | CharSequence sequence, |
nothing calls this directly
no test coverage detected