diff options
Diffstat (limited to 'src/libexpr/json-to-value.cc')
| -rw-r--r-- | src/libexpr/json-to-value.cc | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/libexpr/json-to-value.cc b/src/libexpr/json-to-value.cc index 0898b560911b..1daf84600dca 100644 --- a/src/libexpr/json-to-value.cc +++ b/src/libexpr/json-to-value.cc @@ -105,17 +105,21 @@ static void parseJSON(EvalState & state, const char * & s, Value & v) mkString(v, parseJSONString(s)); } - else if (isdigit(*s) || *s == '-') { - bool neg = false; - if (*s == '-') { - neg = true; - if (!*++s) throw JSONParseError("unexpected end of JSON number"); + else if (isdigit(*s) || *s == '-' || *s == '.' ) { + // Buffer into a string first, then use built-in C++ conversions + std::string tmp_number; + ValueType number_type = tInt; + + while (isdigit(*s) || *s == '-' || *s == '.' || *s == 'e' || *s == 'E') { + if (*s == '.' || *s == 'e' || *s == 'E') + number_type = tFloat; + tmp_number += *s++; } - NixInt n = 0; - // FIXME: detect overflow - while (isdigit(*s)) n = n * 10 + (*s++ - '0'); - if (*s == '.' || *s == 'e') throw JSONParseError("floating point JSON numbers are not supported"); - mkInt(v, neg ? -n : n); + + if (number_type == tFloat) + mkFloat(v, stod(tmp_number)); + else + mkInt(v, stoi(tmp_number)); } else if (strncmp(s, "true", 4) == 0) { |