diff options
Diffstat (limited to 'frontends')
| -rw-r--r-- | frontends/json/jsonparse.cc | 34 |
1 files changed, 31 insertions, 3 deletions
diff --git a/frontends/json/jsonparse.cc b/frontends/json/jsonparse.cc index 50c25abda..1aab81015 100644 --- a/frontends/json/jsonparse.cc +++ b/frontends/json/jsonparse.cc @@ -60,10 +60,38 @@ struct JsonNode break; if (ch == '\\') { - int ch = f.get(); + ch = f.get(); - if (ch == EOF) - log_error("Unexpected EOF in JSON string.\n"); + switch (ch) { + case EOF: log_error("Unexpected EOF in JSON string.\n"); break; + case '"': + case '/': + case '\\': break; + case 'b': ch = '\b'; break; + case 'f': ch = '\f'; break; + case 'n': ch = '\n'; break; + case 'r': ch = '\r'; break; + case 't': ch = '\t'; break; + case 'u': + int val = 0; + for (int i = 0; i < 4; i++) { + ch = f.get(); + val <<= 4; + if (ch >= '0' && '9' >= ch) { + val += ch - '0'; + } else if (ch >= 'A' && 'F' >= ch) { + val += 10 + ch - 'A'; + } else if (ch >= 'a' && 'f' >= ch) { + val += 10 + ch - 'a'; + } else + log_error("Unexpected non-digit character in \\uXXXX sequence: %c.\n", ch); + } + if (val < 128) + ch = val; + else + log_error("Unsupported \\uXXXX sequence in JSON string: %04X.\n", val); + break; + } } data_string += ch; |