[PATCH 2/8] grep: grep: refactor handling of binary mode options

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Turn the switch inside-out and add labels for each possible value
of ->binary.  This makes the code easier to read and avoids calling
buffer_is_binary() if the option -a was given.

Signed-off-by: Rene Scharfe <rene.scharfe@xxxxxxxxxxxxxx>
---
 grep.c |   20 +++++++++++---------
 1 files changed, 11 insertions(+), 9 deletions(-)

diff --git a/grep.c b/grep.c
index 543b1d5..2a8e879 100644
--- a/grep.c
+++ b/grep.c
@@ -800,17 +800,19 @@ static int grep_buffer_1(struct grep_opt *opt, const char *name,
 		opt->show_hunk_mark = 1;
 	opt->last_shown = 0;
 
-	if (buffer_is_binary(buf, size)) {
-		switch (opt->binary) {
-		case GREP_BINARY_DEFAULT:
+	switch (opt->binary) {
+	case GREP_BINARY_DEFAULT:
+		if (buffer_is_binary(buf, size))
 			binary_match_only = 1;
-			break;
-		case GREP_BINARY_NOMATCH:
+		break;
+	case GREP_BINARY_NOMATCH:
+		if (buffer_is_binary(buf, size))
 			return 0; /* Assume unmatch */
-			break;
-		default:
-			break;
-		}
+		break;
+	case GREP_BINARY_TEXT:
+		break;
+	default:
+		die("bug: unknown binary handling mode");
 	}
 
 	memset(&xecfg, 0, sizeof(xecfg));
-- 
1.7.1

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