Only quote output when necessary
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parent
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51ed172d5d
12
sdn.cpp
12
sdn.cpp
@ -106,7 +106,19 @@ fun split (const string &s, const string &sep) -> vector<string> {
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vector<string> result; split (s, sep, result); return result;
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}
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fun needs_shell_quoting (const string &v) -> bool {
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// IEEE Std 1003.1 sh + the exclamation mark because of csh/bash
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// history expansion, implicitly also the NUL character
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for (auto c : v)
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if (strchr ("|&;<>()$`\\\"' \t\n" "*?[#˜=%" "!", c))
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return true;
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return false;
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}
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fun shell_escape (const string &v) -> string {
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if (!needs_shell_quoting (v))
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return v;
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string result;
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for (auto c : v)
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if (c == '\'')
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