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repl: backslash bug fix #2968

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repl: backslash bug fix #2968

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5 changes: 3 additions & 2 deletions lib/repl.js
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Original file line number Diff line number Diff line change
Expand Up @@ -288,8 +288,9 @@ function REPLServer(prompt,

for (var i = 0; i < line.length; i += 1) {
if (previous === '\\') {
// if it is a valid escaping, then skip processing
previous = current;
// if it is a valid escaping, then skip processing and the previous
// character doesn't matter anymore.
previous = null;
continue;
}

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7 changes: 7 additions & 0 deletions test/parallel/test-repl.js
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Expand Up @@ -242,6 +242,13 @@ function error_test() {
'RegExp.$6\nRegExp.$7\nRegExp.$8\nRegExp.$9\n',
expect: ['\'1\'\n', '\'2\'\n', '\'3\'\n', '\'4\'\n', '\'5\'\n', '\'6\'\n',
'\'7\'\n', '\'8\'\n', '\'9\'\n'].join(`${prompt_unix}`) },
// regression tests for https://github.com/nodejs/node/issues/2749
{ client: client_unix, send: 'function x() {\nreturn \'\\n\';\n }',
expect: prompt_multiline + prompt_multiline +
'undefined\n' + prompt_unix },
{ client: client_unix, send: 'function x() {\nreturn \'\\\\\';\n }',
expect: prompt_multiline + prompt_multiline +
'undefined\n' + prompt_unix },
]);
}

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