diff options
Diffstat (limited to 'src/libexpr/value-to-json.cc')
| -rw-r--r-- | src/libexpr/value-to-json.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libexpr/value-to-json.cc b/src/libexpr/value-to-json.cc index a2004df5c8c5..d1ec9b566d66 100644 --- a/src/libexpr/value-to-json.cc +++ b/src/libexpr/value-to-json.cc @@ -3,6 +3,7 @@ #include "util.hh" #include <cstdlib> +#include <iomanip> namespace nix { @@ -16,6 +17,8 @@ void escapeJSON(std::ostream & str, const string & s) else if (*i == '\n') str << "\\n"; else if (*i == '\r') str << "\\r"; else if (*i == '\t') str << "\\t"; + else if (*i >= 0 && *i < 32) + str << "\\u" << std::setfill('0') << std::setw(4) << std::hex << (uint16_t) *i << std::dec; else str << *i; str << "\""; } |