140 lines
3.9 KiB
C++
140 lines
3.9 KiB
C++
#include "pyc_string.h"
|
|
#include "pyc_module.h"
|
|
#include "data.h"
|
|
#include <stdexcept>
|
|
|
|
static bool check_ascii(const std::string& data)
|
|
{
|
|
auto cp = reinterpret_cast<const unsigned char*>(data.c_str());
|
|
while (*cp) {
|
|
if (*cp & 0x80)
|
|
return false;
|
|
++cp;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
/* PycString */
|
|
void PycString::load(PycData* stream, PycModule* mod)
|
|
{
|
|
if (type() == TYPE_STRINGREF) {
|
|
PycRef<PycString> str = mod->getIntern(stream->get32());
|
|
m_type = str->m_type;
|
|
m_value = str->m_value;
|
|
} else {
|
|
int length;
|
|
if (type() == TYPE_SHORT_ASCII || type() == TYPE_SHORT_ASCII_INTERNED)
|
|
length = stream->getByte();
|
|
else
|
|
length = stream->get32();
|
|
|
|
if (length < 0)
|
|
throw std::bad_alloc();
|
|
|
|
m_value.resize(length);
|
|
if (length) {
|
|
stream->getBuffer(length, &m_value.front());
|
|
if (type() == TYPE_ASCII || type() == TYPE_ASCII_INTERNED ||
|
|
type() == TYPE_SHORT_ASCII || type() == TYPE_SHORT_ASCII_INTERNED) {
|
|
if (!check_ascii(m_value))
|
|
throw std::runtime_error("Invalid bytes in ASCII string");
|
|
}
|
|
}
|
|
|
|
if (type() == TYPE_INTERNED || type() == TYPE_ASCII_INTERNED ||
|
|
type() == TYPE_SHORT_ASCII_INTERNED)
|
|
mod->intern(this);
|
|
}
|
|
}
|
|
|
|
bool PycString::isEqual(PycRef<PycObject> obj) const
|
|
{
|
|
if (type() != obj.type())
|
|
return false;
|
|
|
|
PycRef<PycString> strObj = obj.cast<PycString>();
|
|
return isEqual(strObj->m_value);
|
|
}
|
|
|
|
void OutputString(PycRef<PycString> str, char prefix, bool triple, FILE* F, const char* parent_f_string_quote)
|
|
{
|
|
if (prefix != 0)
|
|
fputc(prefix, F);
|
|
|
|
const char* ch = str->value();
|
|
int len = str->length();
|
|
if (ch == 0) {
|
|
fputs("''", F);
|
|
return;
|
|
}
|
|
|
|
// Determine preferred quote style (Emulate Python's method)
|
|
bool useQuotes = false;
|
|
if (!parent_f_string_quote) {
|
|
while (len--) {
|
|
if (*ch == '\'') {
|
|
useQuotes = true;
|
|
} else if (*ch == '"') {
|
|
useQuotes = false;
|
|
break;
|
|
}
|
|
ch++;
|
|
}
|
|
} else {
|
|
useQuotes = parent_f_string_quote[0] == '"';
|
|
}
|
|
ch = str->value();
|
|
len = str->length();
|
|
|
|
// Output the string
|
|
if (!parent_f_string_quote) {
|
|
if (triple)
|
|
fputs(useQuotes ? "\"\"\"" : "'''", F);
|
|
else
|
|
fputc(useQuotes ? '"' : '\'', F);
|
|
}
|
|
while (len--) {
|
|
if ((unsigned char)(*ch) < 0x20 || *ch == 0x7F) {
|
|
if (*ch == '\r') {
|
|
fputs("\\r", F);
|
|
} else if (*ch == '\n') {
|
|
if (triple)
|
|
fputc('\n', F);
|
|
else
|
|
fputs("\\n", F);
|
|
} else if (*ch == '\t') {
|
|
fputs("\\t", F);
|
|
} else {
|
|
fprintf(F, "\\x%02x", (*ch & 0xFF));
|
|
}
|
|
} else if ((unsigned char)(*ch) >= 0x80) {
|
|
if (str->type() == PycObject::TYPE_UNICODE) {
|
|
// Unicode stored as UTF-8... Let the stream interpret it
|
|
fputc(*ch, F);
|
|
} else {
|
|
fprintf(F, "\\x%x", (*ch & 0xFF));
|
|
}
|
|
} else {
|
|
if (!useQuotes && *ch == '\'')
|
|
fputs("\\'", F);
|
|
else if (useQuotes && *ch == '"')
|
|
fputs("\\\"", F);
|
|
else if (*ch == '\\')
|
|
fputs("\\\\", F);
|
|
else if (parent_f_string_quote && *ch == '{')
|
|
fputs("{{", F);
|
|
else if (parent_f_string_quote && *ch == '}')
|
|
fputs("}}", F);
|
|
else
|
|
fputc(*ch, F);
|
|
}
|
|
ch++;
|
|
}
|
|
if (!parent_f_string_quote) {
|
|
if (triple)
|
|
fputs(useQuotes ? "\"\"\"" : "'''", F);
|
|
else
|
|
fputc(useQuotes ? '"' : '\'', F);
|
|
}
|
|
}
|