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Output JSON strings as natural UTF-8 text without escapes (#4710)

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* Added support for the non-escaped print of utf-8 string.

* EscapeString: the first invalid symbol resets print_natural_utf8 flag to false.

* Move the test to ParseAndGenerateTextTest. Fixes.

* Removed dependence between `natural_utf8` and `allow_non_utf8` flags.
This commit is contained in:
Vladimir Glavnyy
2018-05-04 02:10:45 +07:00
committed by Wouter van Oortmerssen
parent 85faa46fb3
commit 12c4c2238c
9 changed files with 55 additions and 16 deletions
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7
include/flatbuffers/util.h
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@@ -381,7 +381,7 @@ inline std::string WordWrap(const std::string in, size_t max_length,
}
inline bool EscapeString(const char *s, size_t length, std::string *_text,
bool allow_non_utf8) {
bool allow_non_utf8, bool natural_utf8) {
std::string &text = *_text;
text += "\"";
for (uoffset_t i = 0; i < length; i++) {
@@ -421,7 +421,10 @@ inline bool EscapeString(const char *s, size_t length, std::string *_text,
return false;
}
} else {
if (ucc <= 0xFFFF) {
if (natural_utf8) {
// utf8 points to past all utf-8 bytes parsed
text.append(s + i, static_cast<size_t>(utf8 - s - i));
} else if (ucc <= 0xFFFF) {
// Parses as Unicode within JSON's \uXXXX range, so use that.
text += "\\u";
text += IntToStringHex(ucc, 4);