|
1 | 1 | package com.osfans.trime.util |
2 | 2 |
|
3 | | -import android.view.KeyEvent |
4 | | -import kotlin.math.max |
5 | | -import kotlin.math.min |
6 | | - |
7 | 3 | object StringUtils { |
8 | 4 | private const val SECTION_DIVIDER = ",.?!~:，。：～？！…\t\r\n\\/" |
9 | 5 |
|
10 | | - fun findNextSection(str: CharSequence?, start: Int): Int { |
11 | | - if (str != null) { |
12 | | - var i = Math.max(0, start) |
13 | | - if (i < str.length) { |
14 | | - var c = str[i] |
15 | | - var judge = |
16 | | - if (SECTION_DIVIDER.indexOf(c) < 0) true else false |
17 | | - while (i < str.length) { |
18 | | - c = str[i] |
19 | | - if (SECTION_DIVIDER.indexOf(c) < 0) { |
20 | | - judge = |
21 | | - true |
22 | | - } else if (judge) { |
23 | | - return i |
24 | | - } |
25 | | - i++ |
26 | | - } |
27 | | - } |
| 6 | + @JvmStatic |
| 7 | + fun findSectionAfter(cs: CharSequence?, startIndex: Int): Int { |
| 8 | + cs ?: return 0 |
| 9 | + val index = startIndex.coerceAtLeast(0) |
| 10 | + for ((i, c) in cs.withIndex()) { |
| 11 | + if (i < index) continue |
| 12 | + if (SECTION_DIVIDER.contains(c)) return i |
28 | 13 | } |
29 | | - return str!!.length |
| 14 | + return cs.length |
30 | 15 | } |
31 | 16 |
|
32 | | - fun findPrevSection(str: CharSequence?, start: Int): Int { |
33 | | - if (str != null) { |
34 | | - var i = Math.min(start, str.length) - 1 |
35 | | - if (i >= 0) { |
36 | | - var c = str[i] |
37 | | - var judge = |
38 | | - if (SECTION_DIVIDER.indexOf(c) < 0) true else false |
39 | | - while (i >= 0) { |
40 | | - c = str[i] |
41 | | - if (SECTION_DIVIDER.indexOf(c) < 0) { |
42 | | - judge = |
43 | | - true |
44 | | - } else if (judge) { |
45 | | - return i |
46 | | - } |
47 | | - i-- |
48 | | - } |
49 | | - } |
| 17 | + @JvmStatic |
| 18 | + fun findSectionBefore(cs: CharSequence?, startIndex: Int): Int { |
| 19 | + cs ?: return 0 |
| 20 | + val index = startIndex.coerceAtMost(cs.length) - 1 |
| 21 | + for ((i, c) in cs.withIndex().reversed()) { |
| 22 | + if (i > index) continue |
| 23 | + if (SECTION_DIVIDER.contains(c)) return i |
50 | 24 | } |
51 | 25 | return 0 |
52 | 26 | } |
53 | 27 |
|
| 28 | + /** |
| 29 | + * Remove all parts that match given [regexes] in the string. |
| 30 | + */ |
54 | 31 | @JvmStatic |
55 | | - fun String.replace(rules: Array<String>): String { |
56 | | - var s = this |
57 | | - for (r in rules) { |
58 | | - s = s.replace(r.toRegex(), "") |
59 | | - if (s.isEmpty()) return "" |
| 32 | + fun String.removeAll(regexes: Array<String>): String { |
| 33 | + if (this.isEmpty()) return "" |
| 34 | + var result = this |
| 35 | + for (r in regexes) { |
| 36 | + result = result.replace(r.toRegex(), "") |
60 | 37 | } |
61 | | - return s |
| 38 | + return result |
62 | 39 | } |
63 | 40 |
|
| 41 | + /** |
| 42 | + * Verify if the string matches any regex in the given [regexes]. |
| 43 | + */ |
64 | 44 | @JvmStatic |
65 | | - fun String.mismatch(rules: Array<String>): Boolean { |
| 45 | + fun String.matches(regexes: Array<String>): Boolean { |
66 | 46 | if (this.isEmpty()) return false |
67 | | - for (r in rules) { |
68 | | - if (this.matches(r.toRegex())) return false |
69 | | - } |
70 | | - return true |
71 | | - } |
72 | | - |
73 | | - // KeyCode Android keycode -> 可录入的按键字符 |
74 | | - // 考虑到可能存在魔改机型的keycode有差异，而KeyEvent.keyCodeToString(keyCode)无法从keyCode获得按键字符，故重写这个从keyCode获取Char的方法。 |
75 | | - @JvmStatic |
76 | | - fun toCharString(keyCode: Int): String { |
77 | | - when (keyCode) { |
78 | | - KeyEvent.KEYCODE_TAB -> return "\t" |
79 | | - KeyEvent.KEYCODE_SPACE -> return " " |
80 | | - KeyEvent.KEYCODE_PLUS -> return "+" |
81 | | - KeyEvent.KEYCODE_MINUS -> return "-" |
82 | | - KeyEvent.KEYCODE_STAR -> return "*" |
83 | | - KeyEvent.KEYCODE_SLASH -> return "/" |
84 | | - KeyEvent.KEYCODE_EQUALS -> return "=" |
85 | | - KeyEvent.KEYCODE_AT -> return "@" |
86 | | - KeyEvent.KEYCODE_POUND -> return "#" |
87 | | - KeyEvent.KEYCODE_APOSTROPHE -> return "'" |
88 | | - KeyEvent.KEYCODE_BACKSLASH -> return "\\" |
89 | | - KeyEvent.KEYCODE_COMMA -> return "," |
90 | | - KeyEvent.KEYCODE_PERIOD -> return "." |
91 | | - KeyEvent.KEYCODE_LEFT_BRACKET -> return "[" |
92 | | - KeyEvent.KEYCODE_RIGHT_BRACKET -> return "]" |
93 | | - KeyEvent.KEYCODE_SEMICOLON -> return ";" |
94 | | - KeyEvent.KEYCODE_GRAVE -> return "`" |
95 | | - KeyEvent.KEYCODE_NUMPAD_ADD -> return "+" |
96 | | - KeyEvent.KEYCODE_NUMPAD_SUBTRACT -> return "-" |
97 | | - KeyEvent.KEYCODE_NUMPAD_MULTIPLY -> return "*" |
98 | | - KeyEvent.KEYCODE_NUMPAD_DIVIDE -> return "/" |
99 | | - KeyEvent.KEYCODE_NUMPAD_EQUALS -> return "=" |
100 | | - KeyEvent.KEYCODE_NUMPAD_COMMA -> return "," |
101 | | - KeyEvent.KEYCODE_NUMPAD_DOT -> return "." |
102 | | - KeyEvent.KEYCODE_NUMPAD_LEFT_PAREN -> return "(" |
103 | | - KeyEvent.KEYCODE_NUMPAD_RIGHT_PAREN -> return ")" |
104 | | - } |
105 | | - var c = 0 |
106 | | - if (keyCode >= KeyEvent.KEYCODE_0 && keyCode <= KeyEvent.KEYCODE_9) { |
107 | | - c = '0'.code + keyCode - KeyEvent.KEYCODE_0 |
108 | | - } else if (keyCode >= KeyEvent.KEYCODE_NUMPAD_0 && keyCode <= KeyEvent.KEYCODE_NUMPAD_9) { |
109 | | - c = '0'.code + keyCode - KeyEvent.KEYCODE_NUMPAD_0 |
110 | | - } else if (keyCode >= KeyEvent.KEYCODE_A && keyCode <= KeyEvent.KEYCODE_Z) { |
111 | | - c = 'a'.code + keyCode - KeyEvent.KEYCODE_A |
| 47 | + for (r in regexes) { |
| 48 | + if (this.matches(r.toRegex())) return true |
112 | 49 | } |
113 | | - return if (c > 0) c.toChar().toString() else "" |
| 50 | + return false |
114 | 51 | } |
115 | 52 | } |
0 commit comments