X-Git-Url: http://git.cinelerra-gg.org/git/?p=goodguy%2Fhistory.git;a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fcstrdup.h;h=59227cbe56ecea58ec160a500bc4e82a4a6a3d1c;hp=fabac81338a2f3c3a9d356129b1910a4cc80933c;hb=c279e21fc2394a7908bbd1ba8c79b116fe9fb14a;hpb=21c2e6b36d6a96c2f662a89459d607b5a387f4eb

diff --git a/cinelerra-5.1/guicast/cstrdup.h b/cinelerra-5.1/guicast/cstrdup.h
index fabac813..59227cbe 100644
--- a/cinelerra-5.1/guicast/cstrdup.h
+++ b/cinelerra-5.1/guicast/cstrdup.h
@@ -2,7 +2,9 @@
 #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);
@@ -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