74bf17be17
git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@5199 212acab6-be3b-0410-9dea-997c60f758d6
95 lines
1.6 KiB
C
95 lines
1.6 KiB
C
#include <windows.h>
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#include "nsis.h"
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int g_stringsize;
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stack_t **g_stacktop;
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char *g_variables;
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int NSDFUNC myatoi(const char *s)
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{
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int v=0;
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if (*s == '0' && (s[1] == 'x' || s[1] == 'X'))
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{
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s++;
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for (;;)
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{
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int c=*(++s);
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if (c >= '0' && c <= '9') c-='0';
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else if (c >= 'a' && c <= 'f') c-='a'-10;
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else if (c >= 'A' && c <= 'F') c-='A'-10;
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else break;
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v<<=4;
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v+=c;
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}
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}
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else if (*s == '0' && s[1] <= '7' && s[1] >= '0')
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{
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for (;;)
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{
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int c=*(++s);
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if (c >= '0' && c <= '7') c-='0';
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else break;
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v<<=3;
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v+=c;
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}
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}
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else
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{
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int sign=0;
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if (*s == '-') sign++; else s--;
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for (;;)
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{
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int c=*(++s) - '0';
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if (c < 0 || c > 9) break;
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v*=10;
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v+=c;
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}
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if (sign) v = -v;
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}
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// Support for simple ORed expressions
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if (*s == '|')
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{
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v |= myatoi(s+1);
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}
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return v;
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}
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int NSDFUNC popstring(char *str, int size)
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{
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stack_t *th;
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if (!g_stacktop || !*g_stacktop) return 1;
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th=(*g_stacktop);
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lstrcpyn(str,th->text,size?size:g_stringsize);
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*g_stacktop = th->next;
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GlobalFree((HGLOBAL)th);
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return 0;
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}
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void NSDFUNC pushstring(const char *str)
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{
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stack_t *th;
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if (!g_stacktop) return;
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th=(stack_t*)GlobalAlloc(GPTR,sizeof(stack_t)+g_stringsize);
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lstrcpyn(th->text,str,g_stringsize);
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th->next=*g_stacktop;
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*g_stacktop=th;
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}
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int NSDFUNC popint()
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{
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char buf[1024];
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if (popstring(buf,sizeof(buf)))
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return 0;
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return myatoi(buf);
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}
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void NSDFUNC pushint(int value)
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{
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char buffer[1024];
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wsprintf(buffer, "%d", value);
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pushstring(buffer);
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}
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