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app-conversion/conversionfunctions.js

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// test string abcáßçकखी國際𐎄𐎔𐎘
/*
Copyright (C) 2007 Richard Ishida ishida@w3.org
This program is free software; you can redistribute it and/or modify it under the terms
of the GNU General Public License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version as long as you point to
http://rishida.net/ in your code.
This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details. http://www.gnu.org/licenses/gpl.html
*/
function displayResults(str, src) {
// convert the string of characters into various formats and send to UI
// str: string, the string of characters
// src: string, the id of the UI location that originated the request
var preserve = 'none'
var pad = true
var showinvisibles
var bidimarkup
var cstyle = false
if (src !== 'chars') { chars.value = str }
if (src !== 'XML') {
XML.value = convertCharStr2XML(str, getParameters(document.getElementById('xmlOptions')))
}
if (src != 'hexNCRs') {
hexNCRs.value = convertCharStr2SelectiveCPs( str, getParameters(document.getElementById('hexNCROptions')), true, '&#x', ';', 'hex' );
}
if (src != 'decNCRs') {
decNCRs.value = convertCharStr2SelectiveCPs( str, getParameters(document.getElementById('decNCROptions')), false, '&#', ';', 'dec' )
}
if (src != 'jEsc') {
jEsc.value = convertCharStr2jEsc( str, getParameters(document.getElementById('jEscOptions')) )
}
if (src != 'rust') {
rust.value = convertCharStr2Rust( str, getParameters(document.getElementById('rustOptions')) )
}
if (src !== 'perl') {
perl.value = convertCharStr2Perl( str, getParameters(document.getElementById('perlOptions')) )
}
if (src !== 'CSS') {
CSS.value = convertCharStr2CSS( str )
}
if (src !== 'pEsc') {
pEsc.value = convertCharStr2pEsc( str )
}
if (src !== 'Unicode') {
preserve = 'none';
if (document.getElementById('unicodeascii').checked) { preserve = 'ascii' }
Unicode.value = convertCharStr2CP(str, preserve, 4, 'unicode');
}
if (src !== 'zeroX') {
preserve = 'none'
if (document.getElementById('zeroXascii').checked) { preserve = 'ascii'; }
zeroX.value = convertCharStr2CP(str, preserve, 0, 'zerox');
}
if (src !== 'codePoints') {
preserve = 'none'
if (document.getElementById('hexcpascii').checked) { preserve = 'ascii' }
codePoints.value = convertCharStr2CP(str, preserve, document.getElementById('hexcppad').value, 'hex', document.getElementById('hexcpascii').checked)
}
if (src != 'decCodePoints') {
preserve = 'none';
if (document.getElementById('deccpascii').checked) { preserve = 'ascii'; }
decCodePoints.value = convertCharStr2CP(str, preserve, 0, 'dec', document.getElementById('deccpascii').checked)
}
if (src != 'UTF8') {
UTF8.value = convertCharStr2UTF8( str );
}
if (src != 'UTF16') {
UTF16.value = convertCharStr2UTF16( str );
}
}
function getParameters (node) {
var par = ''
var checkboxes = node.querySelectorAll('input[type=checkbox]')
for (var c=0;c<checkboxes.length;c++) {
if (c>0) par += ';'
if (checkboxes[c].checked) par += checkboxes[c].dataset.fn
else par += ''
}
return par
}
function extractEscapes (strIn) {
// strips away everything except the escapes from the string in the green box
strIn = ' '+strIn
strIn += ' '
var str = ''
var hexSet = new Set(['0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'])
var decSet = new Set(['0','1','2','3','4','5','6','7','8','9'])
var separatorSet = new Set([' ',',','<','>','(',')','{','}','-','+','[',']','/','|','"','\'',':',';','\u00AB','\u00BB','\u2018','\u2019','\u201C','\u201D','\u3008','\u3009','\u300A','\u300B','\u300C','\u300D','\u300E','\u300F','\u00B7','\u3001','\u3002'])
var chars = [...strIn]
for (let i=0; i<chars.length; i++) {
if (chars[i] === '&' && chars[i+1]==='#' && chars[i+2]==='x') {
let p = i+3
str += '&#x'
while (p < chars.length && chars[p] !== ';') str += chars[p++]
str += ';'
i = p
}
else if (chars[i] === '&' && chars[i+1]==='#') {
let p = i+2
str += '&#'
while (p < chars.length && chars[p] !== ';') str += chars[p++]
str += ';'
i = p
}
else if (chars[i]==='\\' && chars[i+1]==='u' && chars[i+2]==='{') {
let p = i+3
str += '\\u{'
while (p < chars.length && chars[p] !== '}') str += chars[p++]
str += '}'
i = p
}
else if (chars[i]==='\\' && chars[i+1]==='x' && chars[i+2]==='{') {
let p = i+3
str += '\\x{'
while (p < chars.length && chars[p] !== '}') str += chars[p++]
str += '}'
i = p
}
else if (chars[i]==='\\' && chars[i+1]==='u') {
let p = i+2
str += '\\u'
while (p < chars.length && hexSet.has(chars[p].toLowerCase())) str += chars[p++]
str += ''
i = p-1
}
else if (chars[i]==='\\' && chars[i+1]==='x') {
let p = i+2
str += '\\x'
while (p < chars.length && p<i+4) str += chars[p++]
str += ''
i = p-1
}
else if (chars[i]==='\\' && chars[i+1]==='U') {
let p = i+2
str += '\\U'
while (p < chars.length && p<i+10 && hexSet.has(chars[p].toLowerCase())) str += chars[p++]
str += ''
i = p-1
}
else if (chars[i]==='U' && chars[i+1]==='+') {
let p = i+2
str += 'U+'
while (p < chars.length && hexSet.has(chars[p].toLowerCase()) && p<i+8) str += chars[p++]
str += ''
i = p-1
}
else if (chars[i]==='0' && chars[i+1]==='x') {
let p = i+2
str += ' 0x'
while (p < chars.length && hexSet.has(chars[p].toLowerCase()) && p<i+8) str += chars[p++]
str += ''
i = p-1
}
else if (chars[i]==='%' && hexSet.has(chars[i+1].toLowerCase()) && hexSet.has(chars[i+2].toLowerCase())) {
let p = i+1
str += '%'
while (p < chars.length && p<i+3) str += chars[p++]
str += ''
i = p-1
}
else if (chars[i]==='\\' && hexSet.has(chars[i+1].toLowerCase()) && hexSet.has(chars[i+2].toLowerCase())) {
let p = i+1
str += '\\'
while (p < chars.length && p<i+7 && hexSet.has(chars[p].toLowerCase())) str += chars[p++]
str += ''
i = p-1
}
else if (document.getElementById('numbers').value==='hex' && hexSet.has(chars[i].toLowerCase()) && i<chars.length-3 && separatorSet.has(chars[i-1].toLowerCase()) && hexSet.has(chars[i+1].toLowerCase())) {
let p = i+1
let temp = ' '+chars[i]
while (p < chars.length-3 && p<i+6 && hexSet.has(chars[p].toLowerCase())) temp += chars[p++]
if (separatorSet.has(chars[p].toLowerCase())) str += temp
i = p-1
}
else if (document.getElementById('numbers').value==='dec' && decSet.has(chars[i].toLowerCase()) && i<chars.length-3 && separatorSet.has(chars[i-1].toLowerCase()) && decSet.has(chars[i+1].toLowerCase())) {
let p = i+1
let temp = ' '+chars[i]
while (p < chars.length-3 && p<i+6 && decSet.has(chars[p].toLowerCase())) temp += chars[p++]
if (separatorSet.has(chars[p].toLowerCase())) str += temp
i = p-1
}
else {str += ' ' } // do nothing
}
str = str.replace(/\s+/g,' ')
return str.trim()
}
function hex2char ( hex ) {
// converts a single hex number to a character
// note that no checking is performed to ensure that this is just a hex number, eg. no spaces etc
// hex: string, the hex codepoint to be converted
var result = ''
var n = parseInt(hex, 16)
if (n <= 0x10FFFF) result += String.fromCodePoint(n)
else result += 'hex2Char error: Code point out of range: '+dec2hex(n)
return result
}
function dec2char ( n ) {
// converts a single string representing a decimal number to a character
// note that no checking is performed to ensure that this is just a hex number, eg. no spaces etc
// dec: string, the dec codepoint to be converted
var result = '';
if (n <= 0xFFFF) { result += String.fromCharCode(n); }
else if (n <= 0x10FFFF) {
n -= 0x10000
result += String.fromCharCode(0xD800 | (n >> 10)) + String.fromCharCode(0xDC00 | (n & 0x3FF));
}
else { result += 'dec2char error: Code point out of range: '+dec2hex(n); }
return result;
}
function dec2hex ( textString ) {
return (textString+0).toString(16).toUpperCase();
}
function dec2hex2 ( textString ) {
var hexequiv = new Array ("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F");
return hexequiv[(textString >> 4) & 0xF] + hexequiv[textString & 0xF];
}
function dec2hex4 ( textString ) {
var hexequiv = new Array ("0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F");
return hexequiv[(textString >> 12) & 0xF] + hexequiv[(textString >> 8) & 0xF]
+ hexequiv[(textString >> 4) & 0xF] + hexequiv[textString & 0xF];
}
function convertChar2CP ( textString ) {
var haut = 0;
var n = 0;
var CPstring = '';
for (var i = 0; i < textString.length; i++) {
var b = textString.charCodeAt(i);
if (b < 0 || b > 0xFFFF) {
CPstring += 'Error in convertChar2CP: byte out of range ' + dec2hex(b) + '!';
}
if (haut != 0) {
if (0xDC00 <= b && b <= 0xDFFF) {
CPstring += dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00)) + ' ';
haut = 0;
continue;
}
else {
CPstring += 'Error in convertChar2CP: surrogate out of range ' + dec2hex(haut) + '!';
haut = 0;
}
}
if (0xD800 <= b && b <= 0xDBFF) {
haut = b;
}
else {
CPstring += dec2hex(b) + ' ';
}
}
return CPstring.substring(0, CPstring.length-1);
}
// ========================== Converting to characters ==============================================
function convertAllEscapes (str, numbers) {
// converts all escapes in the text str to characters, and can interpret numbers as escapes too
// str: string, the text to be converted
// numbers: string enum [none, hex, dec, utf8, utf16], what to treat numbers as
sle = document.getElementById('singleletterescapes').checked
str = convertUnicode2Char(str)
str = convert0x2Char(str)
str = convertuBracket2Char(str)
str = convertuBrSequence2Char(str)
str = convertxBracket2Char(str)
str = convertx002Char(str)
str = convertHexNCR2Char(str)
str = convertDecNCR2Char(str)
str = convertU0000002Char(str)
str = convertU00002Char(str)
str = convertCSS2Char(str, false)
str = convertpEnc2Char(str)
str = convertEntities2Char(str)
str = convertGreenNumbers2Char(str, numbers)
if (sle) str = convertSlashChar2Char(str)
return str
}
function convertUnicode2Char ( str ) {
// converts a string containing U+... escapes to a string of characters
// str: string, the input
// first convert the 6 digit escapes to characters
str = str.replace(/[Uu]\+10([A-Fa-f0-9]{4})/g,
function(matchstr, parens) {
return hex2char('10'+parens)
}
)
// next convert up to 5 digit escapes to characters
str = str.replace(/[Uu]\+([A-Fa-f0-9]{1,5})/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertHexNCR2Char ( str ) {
// converts a string containing &#x...; escapes to a string of characters
// str: string, the input
// convert up to 6 digit escapes to characters
str = str.replace(/&#x([A-Fa-f0-9]{1,6});/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertDecNCR2Char ( str ) {
// converts a string containing &#...; escapes to a string of characters
// str: string, the input
// convert up to 6 digit escapes to characters
str = str.replace(/&#([0-9]{1,7});/g,
function(matchstr, parens) {
return dec2char(parens)
}
)
return str
}
function convert0x2Char ( str ) {
// converts a string containing 0x... escapes to a string of characters
// str: string, the input
// change 0x to <20><> to avoid things like 0x1F4680x200D as being interpreted as too big a number
str = str.replace(/0x/g,'<27><>')
// convert up to 6 digit escapes to characters
str = str.replace(/<2F><>([A-Fa-f0-9]{1,6})/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertCSS2Char ( str, convertbackslash ) {
// converts a string containing CSS escapes to a string of characters
// str: string, the input
// convertbackslash: boolean, true if you want \x etc to become x or \a to be treated as 0xA
// convert up to 6 digit escapes to characters & throw away any following whitespace
if (convertbackslash) {
str = str.replace(/\\([A-Fa-f0-9]{1,6})(\s)?/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
str = str.replace(/\\/g, '')
}
else {
str = str.replace(/\\([A-Fa-f0-9]{2,6})(\s)?/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
}
return str
}
function convertuBracket2Char ( str ) {
// converts a string containing \u{...} escapes to a string of characters
// str: string, the input
// convert escapes to characters
str = str.replace(/\\u\{([A-Fa-f0-9]{1,})\}/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertuBrSequence2Char ( str ) {
// converts a string containing \u{... ... ...} escapes to a string of characters
// str: string, the input
// convert escapes to characters
str = str.replace(/\\u\{([A-Fa-f0-9 ]{1,})\}/g,
function(matchstr, parens) {
if (parens.match(' ')) {
var out = ''
var chars = parens.split(' ')
for (let i=0;i<chars.length;i++) out += hex2char(chars[i])
return out
}
else return hex2char(parens)
}
)
return str
}
function convertxBracket2Char ( str ) {
// converts a string containing \x{...} escapes to a string of characters
// str: string, the input
// convert escapes to characters
str = str.replace(/\\x\{([A-Fa-f0-9]{1,})\}/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertU0000002Char ( str ) {
// converts a string containing \U + 6 digit escapes to a string of characters
// str: string, the input
// convert escapes to characters
str = str.replace(/\\U([A-Fa-f0-9]{8})/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertU00002Char ( str ) {
// converts a string containing \u + 6 digit escapes to a string of characters
// str: string, the input
// convert escapes to characters
str = str.replace(/\\u([A-Fa-f0-9]{4})/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertx002Char ( str ) {
// converts a string containing \x + 2 digit escapes to a string of characters
// str: string, the input
// convert escapes to characters
str = str.replace(/\\x([A-Fa-f0-9]{2})/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
return str
}
function convertSlashChar2Char ( str ) {
// convert \b etc to characters, if flag set
// str: string, the input
// convert escapes to characters
//str = str.replace(/\\0/g, '\0');
str = str.replace(/\\b/g, '\b');
str = str.replace(/\\t/g, '\t');
str = str.replace(/\\n/g, '\n');
str = str.replace(/\\v/g, '\v');
str = str.replace(/\\f/g, '\f');
str = str.replace(/\\r/g, '\r');
str = str.replace(/\\\'/g, '\'');
str = str.replace(/\\\"/g, '\"');
str = str.replace(/\\\\/g, '\\');
return str
}
function convertEntities2Char ( str ) {
// converts a string containing HTML/XML character entities to a string of characters
// str: string, the input
str = str.replace(/&([A-Za-z0-9]+);/g,
function(matchstr, parens) { //alert(parens);
if (parens in entities) { //alert(entities[parens]);
return entities[parens]
}
else { return matchstr } }
)
return str
}
function convertGreenNumbers2Char ( str, type ) {
// converts a string containing number sequences IN THE GREEN BOX to a string of characters
// str: string, the input
// type: string enum [none, hex, dec, utf8, utf16], what to treat numbers as
if (type === 'hex') {
str = str.replace(/(\b[A-Fa-f0-9]{2,8}\b)/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
}
else if (type === 'dec') {
str = str.replace(/(\b[0-9]+\b)/g,
function(matchstr, parens) {
return dec2char(parens)
}
)
}
else if (type === 'utf8') {
str = str.replace(/(( [A-Fa-f0-9]{2})+)/g,
//str = str.replace(/((\b[A-Fa-f0-9]{2}\b)+)/g,
function(matchstr, parens) {
return convertUTF82Char(parens)
}
)
}
else if (type === 'utf16') {
str = str.replace(/(( [A-Fa-f0-9]{1,6})+)/g,
function(matchstr, parens) {
return convertUTF162Char(parens)
}
)
}
return str
}
function convertNumbers2Char ( str, type ) {
// converts a string containing number sequences to a string of characters
// str: string, the input
// type: string enum [none, hex, dec, utf8, utf16], what to treat numbers as
if (type === 'hex') {
str = str.replace(/([A-Fa-f0-9]{2,8}\b)/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
}
else if (type === 'dec') {
str = str.replace(/([0-9]+\b)/g,
function(matchstr, parens) {
return dec2char(parens)
}
)
}
else if (type === 'utf8') {
str = str.replace(/(( [A-Fa-f0-9]{2})+)/g,
//str = str.replace(/((\b[A-Fa-f0-9]{2}\b)+)/g,
function(matchstr, parens) {
return convertUTF82Char(parens)
}
)
}
else if (type === 'utf16') {
str = str.replace(/(( [A-Fa-f0-9]{1,6})+)/g,
function(matchstr, parens) {
return convertUTF162Char(parens)
}
)
}
return str
}
function convertSpaceSeparatedNumbers2Char ( str, type ) {
// converts a string containing number sequences to a string of characters
// str: string, the input
// type: string enum [none, hex, dec, utf8, utf16], what to treat numbers as
// use a replacement for spaces, so they can be removed before the end
str = str.replace(/ /g, '<27><><EFBFBD>')
if (type === 'hex') {
str = str.replace(/([A-Fa-f0-9]{2,8}\b)/g,
function(matchstr, parens) {
return hex2char(parens)
}
)
}
else if (type === 'dec') {
str = str.replace(/([0-9]+\b)/g,
function(matchstr, parens) {
return dec2char(parens)
}
)
}
else if (type === 'utf8') {
str = str.replace(/(( [A-Fa-f0-9]{2})+)/g,
//str = str.replace(/((\b[A-Fa-f0-9]{2}\b)+)/g,
function(matchstr, parens) {
return convertUTF82Char(parens)
}
)
}
else if (type === 'utf16') {
str = str.replace(/(([A-Fa-f0-9]{1,6})+)/g,
function(matchstr, parens) {
return convertUTF162Char(parens)
}
)
}
return str.replace(/<2F><><EFBFBD>/g,'')
}
function convertUTF82Char ( str ) {
// converts to characters a sequence of space-separated hex numbers representing bytes in utf8
// str: string, the sequence to be converted
var outputString = ""
var counter = 0
var n = 0
// remove leading and trailing spaces
str = str.replace(/^\s+/, '')
str = str.replace(/\s+$/,'')
if (str.length === 0) return ""
str = str.replace(/\s+/g, ' ')
var listArray = str.split(' ')
for ( let i=0; i < listArray.length; i++ ) {
var b = parseInt(listArray[i], 16) // alert('b:'+dec2hex(b));
switch (counter) {
case 0:
if (0 <= b && b <= 0x7F) { // 0xxxxxxx
outputString += dec2char(b); }
else if (0xC0 <= b && b <= 0xDF) { // 110xxxxx
counter = 1;
n = b & 0x1F; }
else if (0xE0 <= b && b <= 0xEF) { // 1110xxxx
counter = 2;
n = b & 0xF; }
else if (0xF0 <= b && b <= 0xF7) { // 11110xxx
counter = 3;
n = b & 0x7; }
else {
outputString += 'convertUTF82Char: error1 ' + dec2hex(b) + '! '
}
break;
case 1:
if (b < 0x80 || b > 0xBF) {
outputString += 'convertUTF82Char: error2 ' + dec2hex(b) + '! '
}
counter--;
outputString += dec2char((n << 6) | (b-0x80));
n = 0;
break;
case 2: case 3:
if (b < 0x80 || b > 0xBF) {
outputString += 'convertUTF82Char: error3 ' + dec2hex(b) + '! '
}
n = (n << 6) | (b-0x80)
counter--
break
}
}
return outputString.replace(/ $/, '')
}
function convertUTF162Char ( str ) {
// Converts a string of UTF-16 code units to characters
// str: sequence of UTF16 code units, separated by spaces
var highsurrogate = 0
var suppCP
var n = 0
var outputString = ''
// remove leading and multiple spaces
str = str.replace(/^\s+/,'');
str = str.replace(/\s+$/,'');
if (str.length == 0){ return; }
str = str.replace(/\s+/g,' ');
var listArray = str.split(' ');
for (var i = 0; i < listArray.length; i++) {
var b = parseInt(listArray[i], 16); //alert(listArray[i]+'='+b);
if (b < 0 || b > 0xFFFF) {
outputString += '!Error in convertUTF162Char: unexpected value, b=' + dec2hex(b) + '!';
}
if (highsurrogate != 0) {
if (0xDC00 <= b && b <= 0xDFFF) {
outputString += dec2char(0x10000 + ((highsurrogate - 0xD800) << 10) + (b - 0xDC00));
highsurrogate = 0;
continue;
}
else {
outputString += 'Error in convertUTF162Char: low surrogate expected, b=' + dec2hex(b) + '!';
highsurrogate = 0;
}
}
if (0xD800 <= b && b <= 0xDBFF) { // start of supplementary character
highsurrogate = b;
}
else {
outputString += dec2char(b);
}
}
return outputString
}
function convertpEnc2Char ( str ) {
// converts a string containing precent encoded escapes to a string of characters
// str: string, the input
// find runs of hex numbers separated by % and send them for conversion
str = str.replace(/((%[A-Fa-f0-9]{2})+)/g,
function(matchstr, parens) {
//return convertpEsc2Char(parens.replace(/%/g,' '));
return convertpEsc2Char(parens)
}
)
return str
}
function convertpEsc2Char ( str ) {
// converts to characters a sequence of %-separated hex numbers representing bytes in utf8
// str: string, the sequence to be converted
var outputString = "";
var counter = 0;
var n = 0;
var listArray = str.split('%');
for ( var i = 1; i < listArray.length; i++ ) {
var b = parseInt(listArray[i], 16); // alert('b:'+dec2hex(b));
switch (counter) {
case 0:
if (0 <= b && b <= 0x7F) { // 0xxxxxxx
outputString += dec2char(b); }
else if (0xC0 <= b && b <= 0xDF) { // 110xxxxx
counter = 1;
n = b & 0x1F; }
else if (0xE0 <= b && b <= 0xEF) { // 1110xxxx
counter = 2;
n = b & 0xF; }
else if (0xF0 <= b && b <= 0xF7) { // 11110xxx
counter = 3;
n = b & 0x7; }
else {
outputString += 'convertpEsc2Char: error ' + dec2hex(b) + '! ';
}
break;
case 1:
if (b < 0x80 || b > 0xBF) {
outputString += 'convertpEsc2Char: error ' + dec2hex(b) + '! ';
}
counter--;
outputString += dec2char((n << 6) | (b-0x80));
n = 0;
break;
case 2: case 3:
if (b < 0x80 || b > 0xBF) {
outputString += 'convertpEsc2Char: error ' + dec2hex(b) + '! ';
}
n = (n << 6) | (b-0x80);
counter--;
break;
}
}
return outputString;
}
function convertjEsc2Char ( str, shortEscapes ) {
// converts a string containing JavaScript or Java escapes to a string of characters
// str: string, the input
// shortEscapes: boolean, if true the function will convert \b etc to characters
// convert ES6 escapes to characters
str = convertuBracket2Char(str)
// convert \U and 6 digit escapes to characters
str = convertU0000002Char(str)
// convert \u and 4 digit escapes to characters
str = convertU00002Char(str)
// convert \x and 2 digit escapes to characters
str = convertx002Char(str)
// convert \b etc to characters, if flag set
if (shortEscapes) {
str = convertSlashChar2Char(str)
}
return str
}
function convertRust2Char ( str, shortEscapes ) {
// converts a string containing Rust escapes to a string of characters
// str: string, the input
// convert \u{...} escapes to characters
str = convertuBracket2Char(str)
// convert \u{... ... ...} escapes to characters
str = convertuBrSequence2Char(str)
// convert \x and 2 digit escapes to characters
str = convertx002Char(str)
// convert \b etc to characters
str = convertSlashChar2Char(str)
return str
}
function convertPerl2Char ( str, shortEscapes ) {
// converts a string containing Perl escapes to a string of characters
// str: string, the input
// convert \x{...} escapes to characters
str = convertxBracket2Char(str)
// convert \x and 2 digit escapes to characters
str = convertx002Char(str)
// convert \b etc to characters
str = convertSlashChar2Char(str)
return str
}
function convertXML2Char (str) {
// converts XML or HTML text to characters by removing all character entities and ncrs
// str: string, the sequence to be converted
// remove various escaped forms
str = convertHexNCR2Char(str)
str = convertDecNCR2Char(str)
str = convertEntities2Char(str)
return str
}
// ============================== Convert to escapes ===============================================
function convertCharStr2XML ( str, parameters ) {
// replaces xml/html syntax-sensitive characters in a string with entities
// also replaces invisible and ambiguous characters with escapes (list to be extended)
// str: string, the input string
// parameters: string, list of enum[convertinvisibles, bidimarkup]
// (convertinvisibles) invisible characters are converted to NCRs
// (bidimarkup) bidi rle/lre/pdf/rli/lri/fsi/pdi characters are converted to markup
str = str.replace(/&/g, '&amp;')
str = str.replace(/"/g, '&quot;')
str = str.replace(/</g, '&lt;')
str = str.replace(/>/g, '&gt;')
// replace invisible and ambiguous characters
var nongraphic = new Set([
'\u00AD', // shy
'\u061C', // alm
'\u070F', // sam
'\u08E2', // end of ayah
'\u180E', // mvs
'\u200B', // zwsp
'\u200C', // zwnj
'\u200D', // zwj
'\u200E', // lrm
'\u200F', // rlm
'\u202A', // lre
'\u202B', // rle
'\u202D', // lro
'\u202E', // rlo
'\u202C', // pdf
'\u2060', // wjoiner
'\u2061', // func appln
'\u2062', // inv x
'\u2063', // inv sep
'\u2064', // inv +
'\u2066', // lri
'\u2067', // rli
'\u2068', // fsi
'\u2069', // pdi
'\u206A', // iss
'\u206B', // ass
'\u206C', // iafs
'\u206D', // aafs
'\u206E', // nads
'\u206F', // nods
'\uFFF9', // iaa
'\uFFFA', // ias
'\uFFFB', // iat
'\u13430', // vert join
'\u13431', // horiz join
'\u13432', // ins top start
'\u13433', // ins bottom start
'\u13434', // ins top end
'\u13435', // ins bottom end
'\u13436', // overlay mid
'\u13437', // beg seg
'\u13438', // end seg
'\u1BCA0', // sh let overlap
'\u1BCA1', // sh cont overlap
'\u1BCA2', // sh format down
'\u1BCA3', // sh format up
'\u1D173', // mus beg beam
'\u1D174', // mus end beam
'\u1D175', // mus beg tie
'\u1D176', // mus end tie
'\u1D177', // mus beg slur
'\u1D178', // mus end slur
'\u1D179', // mus beg phrase
'\u1D17A', // mus end phrase
'\u2000', // en quad
'\u2001', // em quad
'\u2002', // en space
'\u2003', // em space
'\u2004', // 3 per em space
'\u2005', // 4 per em space
'\u2006', // 6 per em space
'\u2007', // figure space
'\u2008', // punctuation space
'\u2009', // thin space
'\u200A', // hair space
'\u205F', // mmsp
'\u00A0', // nbsp
'\u3000', // ideographic sp
'\u202F', // nnbsp
'\u180B', // mfvs1
'\u180C', // mfvs2
'\u180D', // mfvs3
'\u2028', // line sep
'\u0000', // null
])
if (parameters.match(/convertinvisibles/)) {
newstring = ''
for (let i=0;i<str.length;i++) {
if (str.codePointAt(i)===0x09 || str.codePointAt(i)===0x0A || str.codePointAt(i)===0x0D) newstring += str[i]
else if (str.codePointAt(i)<32 || (str.codePointAt(i)>126 && str.codePointAt(i)<160) || str.codePointAt(i)>0xE0000) {
hex = str.codePointAt(i).toString(16).toUpperCase()
while (hex.length < 4) hex = '0'+hex
newstring += '&#x'+hex+';'
}
else if (nongraphic.has(str[i])) {
hex = str.codePointAt(i).toString(16).toUpperCase()
while (hex.length < 4) hex = '0'+hex
newstring += '&#x'+hex+';'
}
else newstring += str[i]
}
str = newstring
}
// convert lre/rle/pdf/rli/lri/fsi/pdi to markup
if (parameters.match(/bidimarkup/)) {
str = str.replace(/\u2066|&#x2066;/g, '&lt;span dir=&quot;ltr&quot;&gt;') // lri
str = str.replace(/\u2067|&#x2067;/g, '&lt;span dir=&quot;rtl&quot;&gt;') // rli
str = str.replace(/\u2068|&#x2068;/g, '&lt;span dir=&quot;auto&quot;&gt;') // fsi
str = str.replace(/\u2069|&#x2069;/g, '&lt;/span&gt;') // pdi
str = str.replace(/\u202A|&#x202A;/g, '&lt;span dir=&quot;ltr&quot;&gt;') // lre
str = str.replace(/\u202B|&#x202B;/g, '&lt;span dir=&quot;rtl&quot;&gt;') // rle
str = str.replace(/\u202C|&#x202C;/g, '&lt;/span&gt;') // pdf
//str = str.replace(/\u202D/g, '&lt;bdo dir=&quot;ltr&quot;&gt;')
//str = str.replace(/\u202E/g, '&lt;bdo dir=&quot;rtl&quot;&gt;')
}
return str;
}
function convertCharStr2XMLOLD ( str, parameters ) {
// replaces xml/html syntax-sensitive characters in a string with entities
// also replaces invisible and ambiguous characters with escapes (list to be extended)
// str: string, the input string
// parameters: string, list of enum[convertinvisibles, bidimarkup]
// (convertinvisibles) invisible characters are converted to NCRs
// (bidimarkup) bidi rle/lre/pdf/rli/lri/fsi/pdi characters are converted to markup
str = str.replace(/&/g, '&amp;')
str = str.replace(/"/g, '&quot;')
str = str.replace(/</g, '&lt;')
str = str.replace(/>/g, '&gt;')
// replace invisible and ambiguous characters
if (parameters.match(/convertinvisibles/)) {
str = str.replace(/\u2066/g, '&#x2066;') // lri
str = str.replace(/\u2067/g, '&#x2067;') // rli
str = str.replace(/\u2068/g, '&#x2068;') // fsi
str = str.replace(/\u2069/g, '&#x2069;') // pdi
str = str.replace(/\u202A/g, '&#x202A;') // lre
str = str.replace(/\u202B/g, '&#x202B;') // rle
str = str.replace(/\u202D/g, '&#x202D;') // lro
str = str.replace(/\u202E/g, '&#x202E;') // rlo
str = str.replace(/\u202C/g, '&#x202C;') // pdf
str = str.replace(/\u200E/g, '&#x200E;') // lrm
str = str.replace(/\u200F/g, '&#x200F;') // rlm
str = str.replace(/\u2000/g, '&#x2000;') // en quad
str = str.replace(/\u2001/g, '&#x2001;') // em quad
str = str.replace(/\u2002/g, '&#x2002;') // en space
str = str.replace(/\u2003/g, '&#x2003;') // em space
str = str.replace(/\u2004/g, '&#x2004;') // 3 per em space
str = str.replace(/\u2005/g, '&#x2005;') // 4 per em space
str = str.replace(/\u2006/g, '&#x2006;') // 6 per em space
str = str.replace(/\u2007/g, '&#x2007;') // figure space
str = str.replace(/\u2008/g, '&#x2008;') // punctuation space
str = str.replace(/\u2009/g, '&#x2009;') // thin space
str = str.replace(/\u200A/g, '&#x200A;') // hair space
str = str.replace(/\u200B/g, '&#x200B;') // zwsp
str = str.replace(/\u205F/g, '&#x205F;') // mmsp
str = str.replace(/\u00A0/g, '&#x00A0;') // nbsp
str = str.replace(/\u3000/g, '&#x3000;') // ideographic sp
str = str.replace(/\u202F/g, '&#x202F;') // nnbsp
str = str.replace(/\u180B/g, '&#x180B;') // mfvs1
str = str.replace(/\u180C/g, '&#x180C;') // mfvs2
str = str.replace(/\u180D/g, '&#x180D;') // mfvs3
str = str.replace(/\u200C/g, '&#x200C;') // zwnj
str = str.replace(/\u200D/g, '&#x200D;') // zwj
str = str.replace(/\u2028/g, '&#x2028;') // line sep
str = str.replace(/\u00AD/g, '&#x00AD;') // shy
str = str.replace(/\u2060/g, '&#x2060;') // wjoiner
str = str.replace(/\u0000/g, '&#x0000;') // null
str = str.replace(/\u206A/g, '&#x206A;') // iss
str = str.replace(/\u206B/g, '&#x206B;') // ass
str = str.replace(/\u206C/g, '&#x206C;') // iafs
str = str.replace(/\u206D/g, '&#x206D;') // aafs
str = str.replace(/\u206E/g, '&#x206E;') // nads
str = str.replace(/\u206F/g, '&#x206F;') // nods
}
// convert lre/rle/pdf/rli/lri/fsi/pdi to markup
if (parameters.match(/bidimarkup/)) {
str = str.replace(/\u2066|&#x2066;/g, '&lt;span dir=&quot;ltr&quot;&gt;') // lri
str = str.replace(/\u2067|&#x2067;/g, '&lt;span dir=&quot;rtl&quot;&gt;') // rli
str = str.replace(/\u2068|&#x2068;/g, '&lt;span dir=&quot;auto&quot;&gt;') // fsi
str = str.replace(/\u2069|&#x2069;/g, '&lt;/span&gt;') // pdi
str = str.replace(/\u202A|&#x202A;/g, '&lt;span dir=&quot;ltr&quot;&gt;') // lre
str = str.replace(/\u202B|&#x202B;/g, '&lt;span dir=&quot;rtl&quot;&gt;') // rle
str = str.replace(/\u202C|&#x202C;/g, '&lt;/span&gt;') // pdf
//str = str.replace(/\u202D/g, '&lt;bdo dir=&quot;ltr&quot;&gt;')
//str = str.replace(/\u202E/g, '&lt;bdo dir=&quot;rtl&quot;&gt;')
}
return str;
}
function convertCharStr2SelectiveCPs ( str, parameters, pad, before, after, base ) {
// converts a string of characters to code points or code point based escapes
// str: string, the string to convert
// parameters: string enum [ascii, latin1], a set of characters to not convert
// pad: boolean, if true, hex numbers lower than 1000 are padded with zeros
// before: string, any characters to include before a code point (eg. &#x for NCRs)
// after: string, any characters to include after (eg. ; for NCRs)
// base: string enum [hex, dec], hex or decimal output
var haut = 0;
var n = 0; var cp;
var CPstring = '';
for (var i = 0; i < str.length; i++) {
var b = str.charCodeAt(i);
if (b < 0 || b > 0xFFFF) {
CPstring += 'Error in convertCharStr2SelectiveCPs: byte out of range ' + dec2hex(b) + '!';
}
if (haut != 0) {
if (0xDC00 <= b && b <= 0xDFFF) {
if (base == 'hex') {
CPstring += before + dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00)) + after;
}
else { cp = 0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00);
CPstring += before + cp + after;
}
haut = 0;
continue;
}
else {
CPstring += 'Error in convertCharStr2SelectiveCPs: surrogate out of range ' + dec2hex(haut) + '!';
haut = 0;
}
}
if (0xD800 <= b && b <= 0xDBFF) {
haut = b;
}
else {
if (parameters.match(/ascii/) && b <= 127) { // && b != 0x3E && b != 0x3C && b != 0x26) {
CPstring += str.charAt(i);
}
else if (b <= 255 && parameters.match(/latin1/)) { // && b != 0x3E && b != 0x3C && b != 0x26) {
CPstring += str.charAt(i);
}
else {
if (base == 'hex') {
cp = dec2hex(b);
if (pad) { while (cp.length < 4) { cp = '0'+cp; } }
}
else { cp = b; }
CPstring += before + cp + after;
}
}
}
return CPstring;
}
function convertCharStr2Unicode ( textString, preserve, pad ) {
// converts a string of characters to U+... notation, separated by space
// textString: string, the string to convert
// preserve: string enum [ascii, latin1], a set of characters to not convert
// pad: boolean, if true, hex numbers lower than 1000 are padded with zeros
var haut = 0;
var n = 0;
var CPstring = ''; pad=false;
for (var i = 0; i < textString.length; i++) {
var b = textString.charCodeAt(i);
if (b < 0 || b > 0xFFFF) {
CPstring += 'Error in convertChar2CP: byte out of range ' + dec2hex(b) + '!';
}
if (haut != 0) {
if (0xDC00 <= b && b <= 0xDFFF) {
CPstring += dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00)) + ' ';
haut = 0;
continue;
}
else {
CPstring += 'Error in convertChar2CP: surrogate out of range ' + dec2hex(haut) + '!';
haut = 0;
}
}
if (0xD800 <= b && b <= 0xDBFF) {
haut = b;
}
else {
if (b <= 127 && preserve == 'ascii') {
CPstring += textString.charAt(i)+' ';
}
else if (b <= 255 && preserve == 'latin1') {
CPstring += textString.charAt(i)+' ';
}
else {
cp = dec2hex(b);
if (pad) { while (cp.length < 4) { cp = '0'+cp; } }
CPstring += 'U+' + cp + ' ';
}
}
}
return CPstring.substring(0, CPstring.length-1);
}
function convertCharStr2HexNCR ( textString ) {
var outputString = "";
textString = textString.replace(/^\s+/, '');
if (textString.length == 0) { return ""; }
textString = textString.replace(/\s+/g, ' ');
var listArray = textString.split(' ');
for ( var i = 0; i < listArray.length; i++ ) {
var n = parseInt(listArray[i], 16);
outputString += '&#x' + dec2hex(n) + ';';
}
return( outputString );
}
function convertCharStr2pEsc ( str ) {
// str: sequence of Unicode characters
var outputString = "";
var CPstring = convertChar2CP(str);
if (str.length == 0) { return ""; }
// process each codepoint
var listArray = CPstring.split(' ');
for ( var i = 0; i < listArray.length; i++ ) {
var n = parseInt(listArray[i], 16);
//if (i > 0) { outputString += ' ';}
if (n == 0x20) { outputString += '%20'; }
else if (n >= 0x41 && n <= 0x5A) { outputString += String.fromCharCode(n); } // alpha
else if (n >= 0x61 && n <= 0x7A) { outputString += String.fromCharCode(n); } // alpha
else if (n >= 0x30 && n <= 0x39) { outputString += String.fromCharCode(n); } // digits
else if (n == 0x2D || n == 0x2E || n == 0x5F || n == 0x7E) { outputString += String.fromCharCode(n); } // - . _ ~
else if (n <= 0x7F) { outputString += '%'+dec2hex2(n); }
else if (n <= 0x7FF) { outputString += '%'+dec2hex2(0xC0 | ((n>>6) & 0x1F)) + '%' + dec2hex2(0x80 | (n & 0x3F)); }
else if (n <= 0xFFFF) { outputString += '%'+dec2hex2(0xE0 | ((n>>12) & 0x0F)) + '%' + dec2hex2(0x80 | ((n>>6) & 0x3F)) + '%' + dec2hex2(0x80 | (n & 0x3F)); }
else if (n <= 0x10FFFF) {outputString += '%'+dec2hex2(0xF0 | ((n>>18) & 0x07)) + '%' + dec2hex2(0x80 | ((n>>12) & 0x3F)) + '%' + dec2hex2(0x80 | ((n>>6) & 0x3F)) + '%' + dec2hex2(0x80 | (n & 0x3F)); }
else { outputString += '!Error ' + dec2hex(n) +'!'; }
}
return( outputString );
}
function convertCharStr2UTF8 ( str ) {
// Converts a string of characters to UTF-8 byte codes, separated by spaces
// str: sequence of Unicode characters
var highsurrogate = 0;
var suppCP; // decimal code point value for a supp char
var n = 0;
var outputString = '';
for (var i = 0; i < str.length; i++) {
var cc = str.charCodeAt(i);
if (cc < 0 || cc > 0xFFFF) {
outputString += '!Error in convertCharStr2UTF8: unexpected charCodeAt result, cc=' + cc + '!';
}
if (highsurrogate != 0) {
if (0xDC00 <= cc && cc <= 0xDFFF) {
suppCP = 0x10000 + ((highsurrogate - 0xD800) << 10) + (cc - 0xDC00);
outputString += ' '+dec2hex2(0xF0 | ((suppCP>>18) & 0x07)) + ' ' + dec2hex2(0x80 | ((suppCP>>12) & 0x3F)) + ' ' + dec2hex2(0x80 | ((suppCP>>6) & 0x3F)) + ' ' + dec2hex2(0x80 | (suppCP & 0x3F));
highsurrogate = 0;
continue;
}
else {
outputString += 'Error in convertCharStr2UTF8: low surrogate expected, cc=' + cc + '!';
highsurrogate = 0;
}
}
if (0xD800 <= cc && cc <= 0xDBFF) { // high surrogate
highsurrogate = cc;
}
else {
if (cc <= 0x7F) { outputString += ' '+dec2hex2(cc); }
else if (cc <= 0x7FF) { outputString += ' '+dec2hex2(0xC0 | ((cc>>6) & 0x1F)) + ' ' + dec2hex2(0x80 | (cc & 0x3F)); }
else if (cc <= 0xFFFF) { outputString += ' '+dec2hex2(0xE0 | ((cc>>12) & 0x0F)) + ' ' + dec2hex2(0x80 | ((cc>>6) & 0x3F)) + ' ' + dec2hex2(0x80 | (cc & 0x3F)); }
}
}
return outputString.substring(1);
}
function convertCharStr2UTF16 ( str ) {
// Converts a string of characters to UTF-16 code units, separated by spaces
// str: sequence of Unicode characters
var highsurrogate = 0;
var suppCP;
var n = 0;
var outputString = '';
for (var i = 0; i < str.length; i++) {
var cc = str.charCodeAt(i);
if (cc < 0 || cc > 0xFFFF) {
outputString += '!Error in convertCharStr2UTF16: unexpected charCodeAt result, cc=' + cc + '!';
}
if (highsurrogate != 0) {
if (0xDC00 <= cc && cc <= 0xDFFF) {
suppCP = 0x10000 + ((highsurrogate - 0xD800) << 10) + (cc - 0xDC00);
suppCP -= 0x10000; outputString += dec2hex4(0xD800 | (suppCP >> 10)) + ' ' + dec2hex4(0xDC00 | (suppCP & 0x3FF)) + ' ';
highsurrogate = 0;
continue;
}
else {
outputString += 'Error in convertCharStr2UTF16: low surrogate expected, cc=' + cc + '!';
highsurrogate = 0;
}
}
if (0xD800 <= cc && cc <= 0xDBFF) { // start of supplementary character
highsurrogate = cc;
}
else {
result = dec2hex(cc)
while (result.length < 4) result = '0' + result
outputString += result + ' '
}
}
return outputString.substring(0, outputString.length-1);
}
function convertCharStr2jEsc ( str, parameters ) {
// Converts a string of characters to JavaScript escapes
// str: sequence of Unicode characters
// parameters: a semicolon separated string showing ids for checkboxes that are turned on
var highsurrogate = 0;
var suppCP;
var pad;
var n = 0;
var pars = parameters.split(';')
var outputString = '';
for (var i = 0; i < str.length; i++) {
var cc = str.charCodeAt(i);
if (cc < 0 || cc > 0xFFFF) {
outputString += '!Error in convertCharStr2UTF16: unexpected charCodeAt result, cc=' + cc + '!';
}
if (highsurrogate != 0) { // this is a supp char, and cc contains the low surrogate
if (0xDC00 <= cc && cc <= 0xDFFF) {
suppCP = 0x10000 + ((highsurrogate - 0xD800) << 10) + (cc - 0xDC00);
if (parameters.match(/cstyleSC/)) {
pad = suppCP.toString(16);
while (pad.length < 8) { pad = '0'+pad; }
outputString += '\\U'+pad;
}
else if (parameters.match(/es6styleSC/)) {
pad = suppCP.toString(16).toUpperCase()
outputString += '\\u{'+pad+'}'
}
else {
suppCP -= 0x10000;
outputString += '\\u'+ dec2hex4(0xD800 | (suppCP >> 10)) +'\\u'+ dec2hex4(0xDC00 | (suppCP & 0x3FF));
}
highsurrogate = 0;
continue;
}
else {
outputString += 'Error in convertCharStr2UTF16: low surrogate expected, cc=' + cc + '!';
highsurrogate = 0;
}
}
if (0xD800 <= cc && cc <= 0xDBFF) { // start of supplementary character
highsurrogate = cc;
}
else { // this is a BMP character
//outputString += dec2hex(cc) + ' ';
switch (cc) {
case 0: outputString += '\\0'; break;
case 8: outputString += '\\b'; break;
case 9: if (parameters.match(/noCR/)) {outputString += '\\t';} else {outputString += '\t'}; break;
case 10: if (parameters.match(/noCR/)) {outputString += '\\n';} else {outputString += '\n'}; break;
case 13: if (parameters.match(/noCR/)) {outputString += '\\r';} else {outputString += '\r'}; break;
case 11: outputString += '\\v'; break;
case 12: outputString += '\\f'; break;
case 34: if (parameters.match(/noCR/)) {outputString += '\\\"';} else {outputString += '"'}; break;
case 39: if (parameters.match(/noCR/)) {outputString += "\\\'";} else {outputString += '\''}; break;
case 92: outputString += '\\\\'; break;
default:
if (cc > 0x1f && cc < 0x7F) {
outputString += String.fromCharCode(cc)
}
else if (parameters.match(/es6styleSC/)) {
pad = cc.toString(16).toUpperCase();
outputString += '\\u{'+pad+'}'
}
else {
pad = cc.toString(16).toUpperCase();
while (pad.length < 4) { pad = '0'+pad; }
outputString += '\\u'+pad
}
}
}
}
return outputString;
}
function convertCharStr2Rust ( strIn, parameters ) {
// Converts a string of characters to Rust escapes
// str: sequence of Unicode characters
// parameters: a semicolon separated string showing ids for checkboxes that are turned on
var str = ''
var chars = [...strIn]
for (let i=0; i<chars.length; i++) {
cp = chars[i].codePointAt(0)
hex = cp.toString(16).toUpperCase()
switch (cp) {
case 0: str += '\\0'; break;
case 8: str += '\\b'; break;
case 9: if (parameters.match(/noCR/)) {str += '\\t';} else {str += '\t'}; break;
case 10: if (parameters.match(/noCR/)) {str += '\\n';} else {str += '\n'}; break;
case 13: if (parameters.match(/noCR/)) {str += '\\r';} else {str += '\r'}; break;
case 11: str += '\\v'; break;
case 12: str += '\\f'; break;
case 34: if (parameters.match(/noCR/)) {str += '\\\"';} else {str += '"'}; break;
case 39: if (parameters.match(/noCR/)) {str += "\\\'";} else {str += '\''}; break;
case 92: str += '\\\\'; break;
default:
if (cp > 0x00 && cp < 0x20) {
str += '\\x'+hex
}
else if (cp > 0x7E && cp < 0xA0) {
str += '\\x'+hex
}
else if (cp > 0x1f && cp < 0x7F) {
str += chars[i]
}
else {
str += '\\u{'+hex+'}'
}
}
}
return str.trim()
}
function convertCharStr2Perl ( strIn, parameters ) {
// Converts a string of characters to Rust escapes
// str: sequence of Unicode characters
// parameters: a semicolon separated string showing ids for checkboxes that are turned on
var str = ''
var chars = [...strIn]
for (let i=0; i<chars.length; i++) {
cp = chars[i].codePointAt(0)
hex = cp.toString(16).toUpperCase()
switch (cp) {
case 0: str += '\\0'; break;
case 8: str += '\\b'; break;
case 9: if (parameters.match(/noCR/)) {str += '\\t';} else {str += '\t'}; break;
case 10: if (parameters.match(/noCR/)) {str += '\\n';} else {str += '\n'}; break;
case 13: if (parameters.match(/noCR/)) {str += '\\r';} else {str += '\r'}; break;
case 11: str += '\\v'; break;
case 12: str += '\\f'; break;
case 34: if (parameters.match(/noCR/)) {str += '\\\"';} else {str += '"'}; break;
case 39: if (parameters.match(/noCR/)) {str += "\\\'";} else {str += '\''}; break;
case 92: str += '\\\\'; break;
default:
if (cp > 0x00 && cp < 0x20) {
str += '\\x'+hex
}
else if (cp > 0x7E && cp < 0xA0) {
str += '\\x'+hex
}
else if (cp > 0x1f && cp < 0x7F) {
str += chars[i]
}
else {
str += '\\x{'+hex+'}'
}
}
}
return str.trim()
}
function convertCharStr2CSS ( str ) {
// Converts a string of characters to CSS escapes
// str: sequence of Unicode characters
var highsurrogate = 0;
var suppCP;
var pad;
var outputString = '';
for (var i = 0; i < str.length; i++) {
var cc = str.charCodeAt(i);
if (cc < 0 || cc > 0xFFFF) {
outputString += '!Error in convertCharStr2CSS: unexpected charCodeAt result, cc=' + cc + '!';
}
if (highsurrogate != 0) { // this is a supp char, and cc contains the low surrogate
if (0xDC00 <= cc && cc <= 0xDFFF) {
suppCP = 0x10000 + ((highsurrogate - 0xD800) << 10) + (cc - 0xDC00);
pad = suppCP.toString(16).toUpperCase();
if (suppCP < 0x10000) { while (pad.length < 4) { pad = '0'+pad; } }
else { while (pad.length < 6) { pad = '0'+pad; } }
outputString += '\\'+pad+' ';
highsurrogate = 0;
continue;
}
else {
outputString += 'Error in convertCharStr2CSS: low surrogate expected, cc=' + cc + '!';
highsurrogate = 0;
}
}
if (0xD800 <= cc && cc <= 0xDBFF) { // start of supplementary character
highsurrogate = cc;
}
else { // this is a BMP character
if (cc == 0x5C) { outputString += '\\\\'; }
else if (cc > 0x1f && cc < 0x7F) { outputString += String.fromCharCode(cc); }
else if (cc == 0x9 || cc == 0xA || cc == 0xD) { outputString += String.fromCharCode(cc); }
else /* if (cc > 0x7E) */ {
pad = cc.toString(16).toUpperCase();
while (pad.length < 4) { pad = '0'+pad; }
outputString += '\\'+pad+' ';
}
}
}
return outputString;
}
function convertCharStr2CP ( textString, parameters, pad, type, mixed ) {
// converts a string of characters to code points, separated by space
// textString: string, the string to convert
// parameters: string enum [ascii, latin1], a set of characters to not convert
// pad: boolean, if true, hex numbers lower than 1000 are padded with zeros
// type: string enum[hex, dec, unicode, 0x], whether output should be in hex or dec or unicode U+ form
// mixed: boolean, true if Show Latin is selected: causes space separators to be added
var str = ''
var number
var chars = [...textString]
chars[chars.length] = ' '
for (let i=0; i<chars.length-1; i++) {
var cp = chars[i].codePointAt(0)
if (cp <= 127 && parameters.includes('ascii')) str += chars[i]
else if (cp <= 255 && parameters.includes('latin1')) str += chars[i]
else {
switch (type) {
case 'hex': number = chars[i].codePointAt(0).toString(16).toUpperCase()
if (pad>0) while (number.length < pad) number = '0'+number
if (!mixed) str += number+' '
else {
if (chars[i+1].codePointAt(0) > 127) str += number+' '
else str += number
}
break
case 'zerox': number = chars[i].codePointAt(0).toString(16).toUpperCase()
if (pad>0) while (number.length < pad) number = '0'+number
str += '0x'+number
break
case 'unicode': number = chars[i].codePointAt(0).toString(16).toUpperCase()
if (pad>0) while (number.length < pad) number = '0'+number
str += 'U+'+number
break
case 'dec': number = cp
if (!mixed) str += number+' '
else {
if (chars[i+1].codePointAt(0) > 127) str += number+' '
else str += number
}
}
}
}
return str.trim()
}
function convertCharStr2CPOLD ( textString, parameters, pad, type ) {
// converts a string of characters to code points, separated by space
// textString: string, the string to convert
// parameters: string enum [ascii, latin1], a set of characters to not convert
// pad: boolean, if true, hex numbers lower than 1000 are padded with zeros
// type: string enum[hex, dec, unicode, 0x], whether output should be in hex or dec or unicode U+ form
var haut = 0;
var n = 0;
var CPstring = '';
var afterEscape = false;
for (var i = 0; i < textString.length; i++) {
var b = textString.charCodeAt(i);
if (b < 0 || b > 0xFFFF) {
CPstring += 'Error in convertChar2CP: byte out of range ' + dec2hex(b) + '!';
}
if (haut != 0) {
if (0xDC00 <= b && b <= 0xDFFF) {
if (afterEscape) { CPstring += ' '; }
if (type == 'hex') {
CPstring += dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00));
}
else if (type == 'unicode') {
CPstring += 'U+'+dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00));
}
else if (type == 'zerox') {
CPstring += '0x'+dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00));
}
else {
CPstring += 0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00);
}
haut = 0;
continue;
afterEscape = true;
}
else {
CPstring += 'Error in convertChar2CP: surrogate out of range ' + dec2hex(haut) + '!';
haut = 0;
}
}
if (0xD800 <= b && b <= 0xDBFF) {
haut = b;
}
else {
if (b <= 127 && parameters.match(/ascii/)) {
CPstring += textString.charAt(i);
afterEscape = false;
}
else if (b <= 255 && parameters.match(/latin1/)) {
CPstring += textString.charAt(i);
afterEscape = false;
}
else {
if (afterEscape) { CPstring += ' '; }
if (type == 'hex') {
cp = dec2hex(b);
if (pad) { while (cp.length < 4) { cp = '0'+cp; } }
}
else if (type == 'unicode') {
cp = dec2hex(b);
if (pad) { while (cp.length < 4) { cp = '0'+cp; } }
CPstring += 'U+';
}
else if (type == 'zerox') {
cp = dec2hex(b);
if (pad) { while (cp.length < 4) { cp = '0'+cp; } }
CPstring += '0x';
}
else {
cp = b;
}
CPstring += cp;
afterEscape = true;
}
}
}
return CPstring;
}
function convertCharStr2Unicode ( textString, preserve, pad ) {
// converts a string of characters to U+... notation, separated by space
// textString: string, the string to convert
// preserve: string enum [ascii, latin1], a set of characters to not convert
// pad: boolean, if true, hex numbers lower than 1000 are padded with zeros
var haut = 0;
var n = 0;
var CPstring = ''; pad=false;
for (var i = 0; i < textString.length; i++) {
var b = textString.charCodeAt(i);
if (b < 0 || b > 0xFFFF) {
CPstring += 'Error in convertChar2CP: byte out of range ' + dec2hex(b) + '!';
}
if (haut != 0) {
if (0xDC00 <= b && b <= 0xDFFF) {
CPstring += 'U+' + dec2hex(0x10000 + ((haut - 0xD800) << 10) + (b - 0xDC00)) + ' ';
haut = 0;
continue;
}
else {
CPstring += 'Error in convertChar2CP: surrogate out of range ' + dec2hex(haut) + '!';
haut = 0;
}
}
if (0xD800 <= b && b <= 0xDBFF) {
haut = b;
}
else {
if (b <= 127 && preserve == 'ascii') {
CPstring += textString.charAt(i)+' ';
}
else if (b <= 255 && preserve == 'latin1') {
CPstring += textString.charAt(i)+' ';
}
else {
cp = dec2hex(b);
if (pad) { while (cp.length < 4) { cp = '0'+cp; } }
CPstring += 'U+' + cp + ' ';
}
}
}
return CPstring.substring(0, CPstring.length-1);
}
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