string - C++ escape control characters -


is there c++ function escape control characters in string? example, if input "first\r\nsecond" output should "first\\0x0d\\0x0asecond".

i haven't heard should relatively easy implement one:

unordered_map<char, string> replacementmap; void initreplecementmap() {     replacementmap['\''] = "\\0x27";     replacementmap['\"'] = "\\0x22";     replacementmap['\?'] = "\\0x3f";     replacementmap['\\'] = "\\\\";     replacementmap['\a'] = "\\0x07";     replacementmap['\b'] = "\\0x08";     replacementmap['\f'] = "\\0x0c";     replacementmap['\n'] = "\\0x0a";     replacementmap['\r'] = "\\0x0d";     replacementmap['\t'] = "\\0x09";     replacementmap['\v'] = "\\0x0b"; }  string replace_escape(string s) {     stringstream ss;      (auto c: s) {         if (replacementmap.find(c) != replacementmap.end()) {             ss << replacementmap[c];         } else {             ss << c;         }     }     return ss.str(); }

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