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#include <windows.h>
#include "pluginapi.h"
#ifdef _countof
#define COUNTOF _countof
#else
#define COUNTOF(a) (sizeof(a)/sizeof(a[0]))
#endif
unsigned int g_stringsize;
stack_t **g_stacktop;
TCHAR *g_variables;
// utility functions (not required but often useful)
int NSISCALL popstring(TCHAR *str)
{
stack_t *th;
if (!g_stacktop || !*g_stacktop) return 1;
th=(*g_stacktop);
if (str) lstrcpy(str,th->text);
*g_stacktop = th->next;
GlobalFree((HGLOBAL)th);
return 0;
}
int NSISCALL popstringn(TCHAR *str, int maxlen)
{
stack_t *th;
if (!g_stacktop || !*g_stacktop) return 1;
th=(*g_stacktop);
if (str) lstrcpyn(str,th->text,maxlen?maxlen:g_stringsize);
*g_stacktop = th->next;
GlobalFree((HGLOBAL)th);
return 0;
}
void NSISCALL pushstring(const TCHAR *str)
{
stack_t *th;
if (!g_stacktop) return;
th=(stack_t*)GlobalAlloc(GPTR,(sizeof(stack_t)+(g_stringsize)*sizeof(TCHAR)));
lstrcpyn(th->text,str,g_stringsize);
th->next=*g_stacktop;
*g_stacktop=th;
}
TCHAR* NSISCALL getuservariable(const int varnum)
{
if (varnum < 0 || varnum >= __INST_LAST) return NULL;
return g_variables+varnum*g_stringsize;
}
void NSISCALL setuservariable(const int varnum, const TCHAR *var)
{
if (var != NULL && varnum >= 0 && varnum < __INST_LAST)
lstrcpy(g_variables + varnum*g_stringsize, var);
}
#ifdef _UNICODE
int NSISCALL PopStringA(char* ansiStr)
{
wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
int rval = popstring(wideStr);
WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
GlobalFree((HGLOBAL)wideStr);
return rval;
}
int NSISCALL PopStringNA(char* ansiStr, int maxlen)
{
int realLen = maxlen ? maxlen : g_stringsize;
wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, realLen*sizeof(wchar_t));
int rval = popstringn(wideStr, realLen);
WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, realLen, NULL, NULL);
GlobalFree((HGLOBAL)wideStr);
return rval;
}
void NSISCALL PushStringA(const char* ansiStr)
{
wchar_t* wideStr = (wchar_t*) GlobalAlloc(GPTR, g_stringsize*sizeof(wchar_t));
MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
pushstring(wideStr);
GlobalFree((HGLOBAL)wideStr);
return;
}
void NSISCALL GetUserVariableW(const int varnum, wchar_t* wideStr)
{
lstrcpyW(wideStr, getuservariable(varnum));
}
void NSISCALL GetUserVariableA(const int varnum, char* ansiStr)
{
wchar_t* wideStr = getuservariable(varnum);
WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
}
void NSISCALL SetUserVariableA(const int varnum, const char* ansiStr)
{
if (ansiStr != NULL && varnum >= 0 && varnum < __INST_LAST)
{
wchar_t* wideStr = g_variables + varnum * g_stringsize;
MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
}
}
#else
// ANSI defs
int NSISCALL PopStringW(wchar_t* wideStr)
{
char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
int rval = popstring(ansiStr);
MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
GlobalFree((HGLOBAL)ansiStr);
return rval;
}
int NSISCALL PopStringNW(wchar_t* wideStr, int maxlen)
{
int realLen = maxlen ? maxlen : g_stringsize;
char* ansiStr = (char*) GlobalAlloc(GPTR, realLen);
int rval = popstringn(ansiStr, realLen);
MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, realLen);
GlobalFree((HGLOBAL)ansiStr);
return rval;
}
void NSISCALL PushStringW(wchar_t* wideStr)
{
char* ansiStr = (char*) GlobalAlloc(GPTR, g_stringsize);
WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
pushstring(ansiStr);
GlobalFree((HGLOBAL)ansiStr);
}
void NSISCALL GetUserVariableW(const int varnum, wchar_t* wideStr)
{
char* ansiStr = getuservariable(varnum);
MultiByteToWideChar(CP_ACP, 0, ansiStr, -1, wideStr, g_stringsize);
}
void NSISCALL GetUserVariableA(const int varnum, char* ansiStr)
{
lstrcpyA(ansiStr, getuservariable(varnum));
}
void NSISCALL SetUserVariableW(const int varnum, const wchar_t* wideStr)
{
if (wideStr != NULL && varnum >= 0 && varnum < __INST_LAST)
{
char* ansiStr = g_variables + varnum * g_stringsize;
WideCharToMultiByte(CP_ACP, 0, wideStr, -1, ansiStr, g_stringsize, NULL, NULL);
}
}
#endif
// playing with integers
INT_PTR NSISCALL nsishelper_str_to_ptr(const TCHAR *s)
{
INT_PTR v=0;
if (*s == _T('0') && (s[1] == _T('x') || s[1] == _T('X')))
{
s++;
for (;;)
{
int c=*(++s);
if (c >= _T('0') && c <= _T('9')) c-=_T('0');
else if (c >= _T('a') && c <= _T('f')) c-=_T('a')-10;
else if (c >= _T('A') && c <= _T('F')) c-=_T('A')-10;
else break;
v<<=4;
v+=c;
}
}
else if (*s == _T('0') && s[1] <= _T('7') && s[1] >= _T('0'))
{
for (;;)
{
int c=*(++s);
if (c >= _T('0') && c <= _T('7')) c-=_T('0');
else break;
v<<=3;
v+=c;
}
}
else
{
int sign=0;
if (*s == _T('-')) sign++; else s--;
for (;;)
{
int c=*(++s) - _T('0');
if (c < 0 || c > 9) break;
v*=10;
v+=c;
}
if (sign) v = -v;
}
return v;
}
unsigned int NSISCALL myatou(const TCHAR *s)
{
unsigned int v=0;
for (;;)
{
unsigned int c=*s++;
if (c >= _T('0') && c <= _T('9')) c-=_T('0');
else break;
v*=10;
v+=c;
}
return v;
}
int NSISCALL myatoi_or(const TCHAR *s)
{
int v=0;
if (*s == _T('0') && (s[1] == _T('x') || s[1] == _T('X')))
{
s++;
for (;;)
{
int c=*(++s);
if (c >= _T('0') && c <= _T('9')) c-=_T('0');
else if (c >= _T('a') && c <= _T('f')) c-=_T('a')-10;
else if (c >= _T('A') && c <= _T('F')) c-=_T('A')-10;
else break;
v<<=4;
v+=c;
}
}
else if (*s == _T('0') && s[1] <= _T('7') && s[1] >= _T('0'))
{
for (;;)
{
int c=*(++s);
if (c >= _T('0') && c <= _T('7')) c-=_T('0');
else break;
v<<=3;
v+=c;
}
}
else
{
int sign=0;
if (*s == _T('-')) sign++; else s--;
for (;;)
{
int c=*(++s) - _T('0');
if (c < 0 || c > 9) break;
v*=10;
v+=c;
}
if (sign) v = -v;
}
// Support for simple ORed expressions
if (*s == _T('|'))
{
v |= myatoi_or(s+1);
}
return v;
}
INT_PTR NSISCALL popintptr()
{
TCHAR buf[128];
if (popstringn(buf,COUNTOF(buf)))
return 0;
return nsishelper_str_to_ptr(buf);
}
int NSISCALL popint_or()
{
TCHAR buf[128];
if (popstringn(buf,COUNTOF(buf)))
return 0;
return myatoi_or(buf);
}
void NSISCALL pushintptr(INT_PTR value)
{
TCHAR buffer[30];
wsprintf(buffer, sizeof(void*) > 4 ? _T("%Id") : _T("%d"), value);
pushstring(buffer);
}
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