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#include "formatter.h"
#include "utils.h"
#include "convert.h"
#define ADD_ARG(t) \
commands[commandsCnt].type = t; \
argNo = readInt(data + offset); \
if (argNo > maxArg) \
maxArg = argNo; \
commands[commandsCnt].data = (void*)argNo; \
commandsCnt++;
Formatter::Formatter(unsigned char *data, int offset)
{
int cnt = readInt(data + offset);
if (! cnt) {
commandsCnt = argsCnt = 0;
commands = NULL;
args = NULL;
}
offset += 4;
commands = new Command[cnt];
commandsCnt = 0;
int maxArg = 0, argNo;
for (int i = 0; i < cnt; i++) {
int type = data[offset];
offset++;
int size = readInt(data + offset);
offset += 4;
switch (type) {
case 1:
commands[commandsCnt].type = TEXT_COMMAND;
commands[commandsCnt].data = new std::wstring(
fromUtf8((char*)data + offset, size));
commandsCnt++;
break;
case 2: ADD_ARG(INT_ARG); break;
case 3: ADD_ARG(STRING_ARG); break;
case 4: ADD_ARG(FLOAT_ARG); break;
case 5: ADD_ARG(DOUBLE_ARG); break;
}
offset += size;
}
argsCnt = maxArg;
if (! argsCnt)
args = NULL;
else {
args = new CmdType[argsCnt];
memset(args, 0, sizeof(CmdType) * argsCnt);
for (int i = 0; i < commandsCnt; i++) {
Command &c = commands[i];
if ((c.type == INT_ARG) || (c.type == STRING_ARG) ||
(c.type == FLOAT_ARG) || (c.type == DOUBLE_ARG))
{
long no = (long)c.data;
args[no - 1] = c.type;
}
}
}
}
Formatter::~Formatter()
{
for (int i = 0; i < commandsCnt; i++)
if (TEXT_COMMAND == commands[i].type)
delete (std::wstring*)(commands[i].data);
if (commands)
delete[] commands;
if (args)
delete[] args;
}
std::wstring Formatter::getMessage() const
{
std::wstring s;
for (int i = 0; i < commandsCnt; i++)
if (TEXT_COMMAND == commands[i].type)
s += *(std::wstring*)(commands[i].data);
return s;
}
class ArgValue
{
public:
virtual ~ArgValue() { };
virtual std::wstring format(Formatter::Command *command) = 0;
};
template <typename T>
class TemplatedArgValue: public ArgValue
{
private:
T value;
public:
TemplatedArgValue(const T &v) { value = v; };
virtual std::wstring format(Formatter::Command *command) {
return toString(value);
};
};
class StrArgValue: public ArgValue
{
private:
std::wstring value;
public:
StrArgValue(const std::wstring &v): value(v) { };
virtual std::wstring format(Formatter::Command *command) {
return value;
};
};
std::wstring Formatter::format(std::vector<ArgValue*> &argValues) const
{
std::wstring s;
long no;
for (int i = 0; i < commandsCnt; i++) {
Command *cmd = &commands[i];
switch (cmd->type) {
case TEXT_COMMAND:
s += *(std::wstring*)(cmd->data);
break;
case STRING_ARG:
case INT_ARG:
no = (long)cmd->data - 1;
if (no < (long)argValues.size())
s += argValues[no]->format(cmd);
break;
default: ;
}
}
return s;
}
std::wstring Formatter::format(va_list ap) const
{
if (! argsCnt)
return getMessage();
std::vector<ArgValue*> argValues;
for (int i = 0; i < argsCnt; i++) {
switch (args[i]) {
case INT_ARG:
argValues.push_back(new TemplatedArgValue<int>
(va_arg(ap, int)));
break;
case STRING_ARG:
argValues.push_back(new StrArgValue(va_arg(ap, wchar_t*)));
break;
case DOUBLE_ARG:
argValues.push_back(new TemplatedArgValue<double>
(va_arg(ap, double)));
break;
case FLOAT_ARG:
argValues.push_back(new TemplatedArgValue<float>
((float)va_arg(ap, double)));
break;
default:
i = argsCnt;
}
}
std::wstring s = format(argValues);
for (std::vector<ArgValue*>::iterator i = argValues.begin();
i != argValues.end(); i++)
delete *i;
return s;
}
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