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[goodguy/history.git] / cinelerra-5.1 / guicast / cstrdup.h

diff --git a/cinelerra-5.1/guicast/cstrdup.h b/cinelerra-5.1/guicast/cstrdup.h
index 831db4284320b6aeeba89df8d0163d42dadae759..59227cbe56ecea58ec160a500bc4e82a4a6a3d1c 100644 (file)
--- a/cinelerra-5.1/guicast/cstrdup.h
+++ b/cinelerra-5.1/guicast/cstrdup.h
@@ -2,13 +2,15 @@
 #define __CSTRDUP_H__
 
 #include <stdarg.h>
+#include <stdint.h>
 #include <string.h>
+#include <wctype.h>
 
 static inline char *cstrcat(int n, ...) {
   int len = 0;  va_list va;  va_start(va,n);
   for(int i=0; i<n; ++i) len += strlen(va_arg(va,char*));
   va_end(va);  char *cp = new char[len+1], *bp = cp;  va_start(va,n);
-  for(int i=0; i<n; ++i) for(char*ap=va_arg(va,char*); *ap; *bp++=*ap++); 
+  for(int i=0; i<n; ++i) for(char*ap=va_arg(va,char*); *ap; *bp++=*ap++);
   va_end(va);  *bp = 0;
   return cp;
 }
@@ -20,4 +22,62 @@ static inline char *cstrdup(const char *cp) {
 #define lengthof(ary) ((int)(sizeof(ary)/sizeof(ary[0])))
 #endif
 
+static inline int butf8(const char *&cp)
+{
+       const unsigned char *bp = (const unsigned char *)cp;
+       int ret = *bp++;
+       if( ret >= 0x80 ) {
+               int v = ret - 0xc0;
+               static const int64_t sz = 0x5433222211111111;
+               int n = v < 0 ? 0 : (sz >> (v&0x3c)) & 0x0f;
+               for( int i=n; --i>=0; ret+=*bp++ ) ret <<= 6;
+               static const uint32_t ofs[6] = {
+                       0x00000000U, 0x00003080U, 0x000E2080U,
+                       0x03C82080U, 0xFA082080U, 0x82082080U
+               };
+               ret -= ofs[n];
+       }
+       cp = (const char *)bp;
+       return ret;
+}
+static inline int butf8(unsigned int v, char *&cp)
+{
+       unsigned char *bp = (unsigned char *)cp;
+       if( v >= 0x00000080 ) {
+               int i = v < 0x00000800 ? 2 : v < 0x00010000 ? 3 :
+                       v < 0x00200000 ? 4 : v < 0x04000000 ? 5 : 6;
+               int m = 0xff00 >> i;
+               *bp++ = (v>>(6*--i)) | m;
+               while( --i >= 0 ) *bp++ = ((v>>(6*i)) & 0x3f) | 0x80;
+       }
+       else
+               *bp++ = v;
+       int ret = bp - (unsigned char *)cp;
+       cp = (char *)bp;
+       return ret;
+}
+
+static inline int bstrcasecmp(const char *ap, const char *bp)
+{
+       int a, b, ret;
+       do {
+               a = towlower(butf8(ap));  b = towlower(butf8(bp));
+       } while( !(ret=a-b) && a && b );
+       return ret;
+}
+
+static inline const char *bstrcasestr(const char *src, const char *tgt)
+{
+       int ssz = strlen(src), tsz = strlen(tgt), ret = 0;
+       const char *cp = tgt;
+       wchar_t wtgt[tsz + 1], *tp = wtgt;
+       while( *cp ) *tp++ = towlower(butf8(cp));
+       for( tsz=tp-wtgt; ssz>=tsz; ++src,--ssz ) {
+               cp = src;   tp = wtgt;
+               for( int i=tsz; --i>=0 && !(ret=towlower(butf8(cp))-*tp); ++tp );
+               if( !ret ) return src;
+       }
+       return 0;
+}
+
 #endif