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1 | static betterCIComparator_C betterCIComparator_instance; |
2 | |
3 | static betterCIComparator_C betterCIComparator() {
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4 | if (betterCIComparator_instance == null) |
5 | betterCIComparator_instance = new betterCIComparator_C; |
6 | ret betterCIComparator_instance; |
7 | } |
8 | |
9 | final sclass betterCIComparator_C implements Comparator<S> {
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10 | public int compare(S s1, S s2) {
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11 | if (s1 == null) ret s2 == null ? 0 : -1; |
12 | if (s2 == null) ret 1; |
13 | |
14 | int n1 = s1.length(); |
15 | int n2 = s2.length(); |
16 | int min = Math.min(n1, n2); |
17 | for (int i = 0; i < min; i++) {
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18 | char c1 = s1.charAt(i); |
19 | char c2 = s2.charAt(i); |
20 | if (c1 != c2) {
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21 | c1 = Character.toUpperCase(c1); |
22 | c2 = Character.toUpperCase(c2); |
23 | if (c1 != c2) {
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24 | c1 = Character.toLowerCase(c1); |
25 | c2 = Character.toLowerCase(c2); |
26 | if (c1 != c2) {
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27 | // No overflow because of numeric promotion |
28 | return c1 - c2; |
29 | } |
30 | } |
31 | } |
32 | } |
33 | return n1 - n2; |
34 | } |
35 | } |
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| Snippet ID: | #1014136 |
| Snippet name: | betterCIComparator (compared to String.CASE_INSENSITIVE_ORDER, allows nulls) |
| Eternal ID of this version: | #1014136/3 |
| Text MD5: | c22d9f1793e8877260dd4881087008b7 |
| Transpilation MD5: | adc3b5723f0cb7ef7270252bf0ce199e |
| Author: | stefan |
| Category: | javax |
| Type: | JavaX fragment (include) |
| Public (visible to everyone): | Yes |
| Archived (hidden from active list): | No |
| Created/modified: | 2020-08-23 09:32:31 |
| Source code size: | 1080 bytes / 35 lines |
| Pitched / IR pitched: | No / No |
| Views / Downloads: | 489 / 808 |
| Version history: | 2 change(s) |
| Referenced in: | [show references] |