Mercurial > cgi-bin > hgweb.cgi > PassMan

annotate src/main/kotlin/name/blackcap/passman/See.kt @ 9:72619175004e

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Fix issues found in testing.
author David Barts <n5jrn@me.com>
date Sat, 01 Oct 2022 09:57:23 -0700
parents ad997df1f560
children
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1 package name.blackcap.passman
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3 import java.util.Formatter
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4
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5 private const val DELIM = '"'
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6 private val ALWAYS_ALLOW = setOf<Char>(' ')
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7 private val ALWAYS_BAN = setOf<Char>(DELIM, '\\')
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8 private val FORBIDDEN = setOf<Byte>(Character.CONTROL, Character.FORMAT,
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9 Character.SURROGATE, Character.PRIVATE_USE, Character.UNASSIGNED,
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10 Character.SPACE_SEPARATOR)
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11 private val STD_ESC_MAP = mapOf<Char, Char>('\t' to 't', '\b' to 'b', '\n' to 'n',
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12 '\r' to 'r', '"' to '"', '\\' to '\\')
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14 fun see(input: String): String {
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15 val accum = Formatter()
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16 accum.format("%c", DELIM)
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17 for (ch in input) {
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18 if (ch in ALWAYS_ALLOW) {
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19 accum.format("%c", ch)
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20 continue
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21 }
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22 if (ch in ALWAYS_BAN || Character.getType(ch).toByte() in FORBIDDEN) {
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23 val mapped = STD_ESC_MAP[ch]
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24 if (mapped != null) {
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25 accum.format("\\%c", mapped)
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26 } else {
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27 accum.format("\\u%04x", ch.code)
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28 }
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29 continue
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30 }
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31 accum.format("%c", ch)
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32 }
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33 accum.format("%c", DELIM)
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34 return accum.toString()
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35 }