| 1 | package be.nikiroo.jvcard.tui; |
| 2 | |
| 3 | import java.text.Normalizer; |
| 4 | import java.text.Normalizer.Form; |
| 5 | import java.util.regex.Pattern; |
| 6 | |
| 7 | import com.googlecode.lanterna.gui2.LinearLayout.Alignment; |
| 8 | |
| 9 | public class StringUtils { |
| 10 | static private Pattern marks = Pattern |
| 11 | .compile("[\\p{InCombiningDiacriticalMarks}\\p{IsLm}\\p{IsSk}]+"); |
| 12 | |
| 13 | /** |
| 14 | * Fix the size of the given {@link String} either with space-padding or by |
| 15 | * shortening it. |
| 16 | * |
| 17 | * @param text |
| 18 | * the {@link String} to fix |
| 19 | * @param width |
| 20 | * the size of the resulting {@link String} if the text fits or |
| 21 | * if cut is TRUE |
| 22 | * |
| 23 | * @return the resulting {@link String} of size <i>size</i> |
| 24 | */ |
| 25 | static public String padString(String text, int width) { |
| 26 | return padString(text, width, true, Alignment.Beginning); |
| 27 | } |
| 28 | |
| 29 | /** |
| 30 | * Fix the size of the given {@link String} either with space-padding or by |
| 31 | * optionally shortening it. |
| 32 | * |
| 33 | * @param text |
| 34 | * the {@link String} to fix |
| 35 | * @param width |
| 36 | * the size of the resulting {@link String} if the text fits or |
| 37 | * if cut is TRUE |
| 38 | * @param cut |
| 39 | * cut the {@link String} shorter if needed |
| 40 | * @param align |
| 41 | * align the {@link String} in this position if we have enough |
| 42 | * space |
| 43 | * |
| 44 | * @return the resulting {@link String} of size <i>size</i> minimum |
| 45 | */ |
| 46 | static public String padString(String text, int width, boolean cut, |
| 47 | Alignment align) { |
| 48 | |
| 49 | if (width >= 0) { |
| 50 | if (text == null) |
| 51 | text = ""; |
| 52 | |
| 53 | int diff = width - text.length(); |
| 54 | |
| 55 | if (diff < 0) { |
| 56 | if (cut) |
| 57 | text = text.substring(0, width); |
| 58 | } else if (diff > 0) { |
| 59 | if (diff < 2 && align != Alignment.End) |
| 60 | align = Alignment.Beginning; |
| 61 | |
| 62 | switch (align) { |
| 63 | case Beginning: |
| 64 | text = text + new String(new char[diff]).replace('\0', ' '); |
| 65 | break; |
| 66 | case End: |
| 67 | text = new String(new char[diff]).replace('\0', ' ') + text; |
| 68 | break; |
| 69 | case Center: |
| 70 | case Fill: |
| 71 | default: |
| 72 | int pad1 = (diff) / 2; |
| 73 | int pad2 = (diff + 1) / 2; |
| 74 | text = new String(new char[pad1]).replace('\0', ' ') + text |
| 75 | + new String(new char[pad2]).replace('\0', ' '); |
| 76 | break; |
| 77 | } |
| 78 | } |
| 79 | } |
| 80 | |
| 81 | return text; |
| 82 | } |
| 83 | |
| 84 | /** |
| 85 | * Sanitise the given input to make it more Terminal-friendly by removing |
| 86 | * combining characters. |
| 87 | * |
| 88 | * @param input |
| 89 | * the input to sanitise |
| 90 | * @param allowUnicode |
| 91 | * allow Unicode or only allow ASCII Latin characters |
| 92 | * |
| 93 | * @return the sanitised {@link String} |
| 94 | */ |
| 95 | static public String sanitize(String input, boolean allowUnicode) { |
| 96 | return sanitize(input, allowUnicode, !allowUnicode); |
| 97 | } |
| 98 | |
| 99 | /** |
| 100 | * Sanitise the given input to make it more Terminal-friendly by removing |
| 101 | * combining characters. |
| 102 | * |
| 103 | * @param input |
| 104 | * the input to sanitise |
| 105 | * @param allowUnicode |
| 106 | * allow Unicode or only allow ASCII Latin characters |
| 107 | * @param removeAllAccents |
| 108 | * TRUE to replace all accentuated characters by their non |
| 109 | * accentuated counter-parts |
| 110 | * |
| 111 | * @return the sanitised {@link String} |
| 112 | */ |
| 113 | static public String sanitize(String input, boolean allowUnicode, |
| 114 | boolean removeAllAccents) { |
| 115 | |
| 116 | if (removeAllAccents) { |
| 117 | input = Normalizer.normalize(input, Form.NFKD); |
| 118 | input = marks.matcher(input).replaceAll(""); |
| 119 | } |
| 120 | |
| 121 | input = Normalizer.normalize(input, Form.NFKC); |
| 122 | |
| 123 | if (!allowUnicode) { |
| 124 | StringBuilder builder = new StringBuilder(); |
| 125 | for (int index = 0; index < input.length(); index++) { |
| 126 | char car = input.charAt(index); |
| 127 | // displayable chars in ASCII are in the range 32<->255, |
| 128 | // except DEL (127) |
| 129 | if (car >= 32 && car <= 255 && car != 127) { |
| 130 | builder.append(car); |
| 131 | } |
| 132 | } |
| 133 | input = builder.toString(); |
| 134 | } |
| 135 | |
| 136 | return input; |
| 137 | } |
| 138 | } |