saryに表示件数を指定できるオプションを追加

sary.patch

diff --git a/src/sary.c b/src/sary.c
index 22f997d..874359f 100644
--- a/src/sary.c
+++ b/src/sary.c
@@ -112,6 +112,9 @@ static gchar*	start_tag = NULL;
 static gchar*	end_tag   = NULL;
 static gchar*	array_name  = NULL;
 
+#define SEARCH_INFINITE -1
+static SaryInt  entry_num = 1000; /* default is 1000 entry */
+
 int 
 main (int argc, char **argv)
 {
@@ -253,6 +256,10 @@ grep_normal (SarySearcher *searcher, const gchar *pattern)
 	    sep  = separator;
 	    sep2 = separator2;
 	    i++;
+
+            if (entry_num != SEARCH_INFINITE && i >= entry_num) {
+                break;
+            }
 	}
 	if (i > 1) {
 	    if (sep2) g_print("%s", sep2);
@@ -289,10 +296,11 @@ sort_lexicographical (SarySearcher *searcher)
 }
 
 
-static const char *short_options = "a:ce:hils:vA:B:C::p";
+static const char *short_options = "a:cn:e:hils:vA:B:C::p";
 static struct option long_options[] = {
     { "array",			required_argument,	NULL, 'a' },
     { "count",			no_argument,		NULL, 'c' },
+    { "num",			required_argument,	NULL, 'n' },
     { "end",			required_argument,	NULL, 'e' },
     { "help",			no_argument,		NULL, 'h' },
     { "ignore-case",		no_argument,		NULL, 'i' },
@@ -312,6 +320,7 @@ show_help (void)
     g_print("\
 Usage: sary [OPTION]... PATTERN FILE\n\
   -c, --count               only print the number of occurrences\n\
+  -n, --num=NUM             print NUM entry (default 1000), -1 is no limitation\n\
   -i, --ignore-case         ignore case distinctions\n\
   -l, --lexicographical     sort in lexicographical order\n\
   -A, --after-context=NUM   print NUM lines of trailing context\n\
@@ -368,6 +377,11 @@ parse_options (int argc, char **argv)
 	case 'c':
 	    grep_mode = "count";
 	    break;
+        case 'n':
+	    if (ck_atoi(optarg, &entry_num)) {
+		g_printerr("sary: invalid entry number argument\n");
+		exit(EXIT_FAILURE);
+	    }
 	case 'i':
             icase_p = 1;
 	    search = sary_searcher_icase_search;