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Script: Allow \n, \x??, \??? escapes

stable-5.2
Nicolas Hake 2009-10-21 04:34:15 +02:00
parent 86e52a9295
commit 8736ab11bc
1 changed files with 42 additions and 1 deletions
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43
src/script/C4AulParse.cpp
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@ -772,11 +772,52 @@ C4AulTokenType C4AulParseState::GetNextToken(char *pToken, long int *pInt, HoldS
}
else
{
if(C == '\\') // escape
if (C == '\\') // escape
switch(*(SPos + 1))
{
case '"': SPos ++; strbuf.push_back('"'); break;
case '\\': SPos ++; strbuf.push_back('\\'); break;
case 'n': SPos ++; strbuf.push_back('\n'); break;
case 'x':
{
++SPos;
// hexadecimal escape: \xAD.
// First char must be a hexdigit
if (!std::isxdigit(SPos[1]))
{
Warn("\\x used with no following hex digits");
strbuf.push_back('\\'); strbuf.push_back('x');
}
else
{
char ch = 0;
while (std::isxdigit(SPos[1]))
{
++SPos;
ch *= 16;
if (*SPos >= '0' && *SPos <= '9')
ch += *SPos - '0';
else if (*SPos >= 'a' && *SPos <= 'f')
ch += *SPos - 'a' + 10;
else if (*SPos >= 'A' && *SPos <= 'F')
ch += *SPos - 'A' + 10;
};
strbuf.push_back(ch);
}
break;
}
case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7':
{
// Octal escape: \142
char ch = 0;
while (SPos[1] >= '0' && SPos[1] <= '7')
{
ch *= 8;
ch += *++SPos -'0';
}
strbuf.push_back(ch);
}
break;
default:
{
// just insert "\"