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Replace sprintf with hex function, this fixes #149

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This commit is contained in:
Jett 2015-11-19 00:17:36 -06:00
parent c013223276
commit 14d8a91f73
2 changed files with 24 additions and 8 deletions
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16
src/json.hpp
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@ -4677,11 +4677,19 @@ class basic_json
{ {
if (c >= 0x00 and c <= 0x1f) if (c >= 0x00 and c <= 0x1f)
{ {
// convert a number 0..15 to its hex representation (0..f)
auto hexify = [](const char v) -> char
{
return (v < 10) ? ('0' + v) : ('a' + v - 10);
};
// print character c as \uxxxx // print character c as \uxxxx
sprintf(&result[pos + 1], "u%04x", int(c)); for(const char m : { 'u', '0', '0', hexify(c >> 4), hexify(c & 0x0f) })
pos += 6; {
// overwrite trailing null character result[++pos] = m;
result[pos] = '\\'; }
++pos;
} }
else else
{ {

16
src/json.hpp.re2c
View file

@ -4677,11 +4677,19 @@ class basic_json
{ {
if (c >= 0x00 and c <= 0x1f) if (c >= 0x00 and c <= 0x1f)
{ {
// convert a number 0..15 to its hex representation (0..f)
auto hexify = [](const char v) -> char
{
return (v < 10) ? ('0' + v) : ('a' + v - 10);
};
// print character c as \uxxxx // print character c as \uxxxx
sprintf(&result[pos + 1], "u%04x", int(c)); for(const char m : { 'u', '0', '0', hexify(c >> 4), hexify(c & 0x0f) })
pos += 6; {
// overwrite trailing null character result[++pos] = m;
result[pos] = '\\'; }
++pos;
} }
else else
{ {