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[MPlayer-dev-eng] [PATCH 1/2] subreader: Split a monster if() into multiple parts.




Should make code more maintainable.
Also make sure all input variables are properly
reset before each test.
---
 sub/subreader.c | 59 ++++++++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 44 insertions(+), 15 deletions(-)

diff --git a/sub/subreader.c b/sub/subreader.c
index 0a9711c..3c42552 100644
--- a/sub/subreader.c
+++ b/sub/subreader.c
@@ -594,28 +594,57 @@ static subtitle *sub_read_line_rt(stream_t *st,subtitle *current, int utf16) {
     char line[LINE_LEN+1];
     int a1,a2,a3,a4,b1,b2,b3,b4;
     char *p=NULL,*next=NULL;
-    int len,plen;
+    int plen;
 
     while (!current->text[0]) {
+	int match = 0;
 	if (!stream_read_line (st, line, LINE_LEN, utf16)) return NULL;
 	//TODO: it seems that format of time is not easily determined, it may be 1:12, 1:12.0 or 0:1:12.0
 	//to describe the same moment in time. Maybe there are even more formats in use.
 	//if ((len=sscanf (line, "<Time Begin=\"%d:%d:%d.%d\" End=\"%d:%d:%d.%d\"",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4)) < 8)
-	plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
-	if (
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d.%d\" %*[Ee]nd=\"%d.%d\"%*[^<]<clear/>%n",&a3,&a4,&b3,&b4,&plen)) < 4) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d.%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a3,&a4,&b2,&b3,&b4,&plen)) < 5) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&b2,&b3,&plen)) < 4) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&b2,&b3,&b4,&plen)) < 5) &&
-//	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&plen)) < 5) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&b4,&plen)) < 6) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d:%d.%d\" %*[Ee]nd=\"%d:%d:%d.%d\"%*[^<]<clear/>%n",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4,&plen)) < 8) &&
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d.%d\" %*[Ee]nd=\"%d.%d\"%*[^<]<clear/>%n",&a3,&a4,&b3,&b4,&plen) >= 4;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d.%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a3,&a4,&b2,&b3,&b4,&plen) >= 5;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&b2,&b3,&plen) >= 4;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&b2,&b3,&b4,&plen) >= 5;
+	}
+//	sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&plen) >= 5
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\" %*[Ee]nd=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&b2,&b3,&b4,&plen) >= 6;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d:%d.%d\" %*[Ee]nd=\"%d:%d:%d.%d\"%*[^<]<clear/>%n",&a1,&a2,&a3,&a4,&b1,&b2,&b3,&b4,&plen) >= 8;
+	}
 	//now try it without end time
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d.%d\"%*[^<]<clear/>%n",&a3,&a4,&plen)) < 2) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&plen)) < 2) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&plen)) < 3) &&
-	((len=sscanf (line, "<%*[tT]ime %*[bB]egin=\"%d:%d:%d.%d\"%*[^<]<clear/>%n",&a1,&a2,&a3,&a4,&plen)) < 4)
-	)
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d.%d\"%*[^<]<clear/>%n",&a3,&a4,&plen) >= 2;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d\"%*[^<]<clear/>%n",&a2,&a3,&plen) >= 2;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d.%d\"%*[^<]<clear/>%n",&a2,&a3,&a4,&plen) >= 3;
+	}
+	if (!match) {
+		plen=a1=a2=a3=a4=b1=b2=b3=b4=0;
+		match = sscanf(line, "<%*[tT]ime %*[bB]egin=\"%d:%d:%d.%d\"%*[^<]<clear/>%n",&a1,&a2,&a3,&a4,&plen) >= 4;
+	}
+	if (!match)
 	    continue;
 	current->start = a1*360000+a2*6000+a3*100+a4/10;
 	current->end   = b1*360000+b2*6000+b3*100+b4/10;
-- 
2.0.0.rc4

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