зеркало из https://github.com/mozilla/pjs.git
74 строки
2.0 KiB
JavaScript
74 строки
2.0 KiB
JavaScript
const charset = "hz-gb-2312";
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function dumpStrings(inString, outString) {
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var dispIn = "";
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var dispOut = "";
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var i;
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for (i = 0; i < inString.length; ++i) {
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dispIn += " x" + inString.charCodeAt(i).toString(16);
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}
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if (outString.length == 0) {
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dispOut = "<empty>";
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} else {
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for (i = 0; i < outString.length; ++i) {
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dispOut += " x" + outString.charCodeAt(i).toString(16);
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}
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}
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dump("\"" + dispIn + "\" ==> \"" + dispOut + "\"\n");
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}
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function error(inString, outString, msg){
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dumpStrings(inString, outString);
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do_throw("security risk: " + msg);
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}
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function run_test() {
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var ScriptableUnicodeConverter =
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Components.Constructor("@mozilla.org/intl/scriptableunicodeconverter",
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"nsIScriptableUnicodeConverter");
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var converter = new ScriptableUnicodeConverter();
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converter.charset = charset;
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var leadByte, trailByte;
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var inString;
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for (leadByte = 1; leadByte < 0x100; ++leadByte) {
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for (trailByte = 1; trailByte < 0x100; ++trailByte) {
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if (leadByte == 0x7e) {
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if (trailByte == 0x7b ||
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trailByte == 0xa ||
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trailByte == 0x7e) {
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// ignore escape sequences:
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// ~{ (sets HZ-GB mode)
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// ~\n ( ==> \n)
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// ~~ ( ==> ~)
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continue;
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}
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}
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inString = String.fromCharCode(leadByte, trailByte, 65);
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var outString = converter.ConvertToUnicode(inString) +
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converter.Finish();
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switch (outString.length) {
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case 1:
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error(inString, outString, "2 byte sequence eaten");
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break;
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case 2:
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if (outString.charCodeAt(0) < 0x80 &&
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outString.charCodeAt(1) < 0x80) {
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error(inString, outString,
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"2 byte sequence converted to 1 ASCII");
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}
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break;
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case 3:
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if (outString != inString &&
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outString.charCodeAt(0) < 0x80 &&
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outString.charCodeAt(1) < 0x80) {
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error(inString, outString,
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"2 byte sequence converted to 2 ASCII");
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}
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break;
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}
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}
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}
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}
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