命中替换条件，但未发生实际替换时，不发日志。

plugin/business/pangu-http/test_pattern_replace.cpp

@@ -6,23 +6,13 @@
 #include <stdio.h>
 #include <gtest/gtest.h>
 
-static void simple_replace(const char* find, const char* replacement, const char* input, size_t in_sz, char** output, size_t *output_sz)
-{
-	char* exec_para=NULL;
-	asprintf(&exec_para,"zone=http_resp_body;substitute=/%s/%s", find, replacement);
-	size_t n_got_rule=0;
-	struct replace_rule rules[16];
-	n_got_rule=format_replace_rule(exec_para, rules, sizeof(rules)/sizeof(rules[0]));
-	*output_sz=execute_replace_rule(input, strlen(input), kZoneResponseBody, rules, n_got_rule, output);
-	free(exec_para);
-	return;
-}
-TEST(PatternReplace, Grouping)
+
+TEST(PatternReplace, Grouping1)
 {
 	const char* find="(?<name1>John)|(?<name2>李梅梅)|(?<name3>Jake)";
 	const char* replacement="${name1:+Joseph:${name2:+王桃花:Keith}}";
 	const char* input="John loves 李梅梅, 李梅梅 loves Jake and Jake doesn't care about John and 李梅梅.";
-	const char* expect="Joseph loves Jessica, Jessica loves Keith and Keith doesn't care about Joseph and Jessica.";
+	const char* expect="Joseph loves 王桃花, 王桃花 loves Keith and Keith doesn't care about Joseph and 王桃花.";
 	char* output=NULL;
 	size_t output_sz=0;
 
@@ -33,6 +23,22 @@ TEST(PatternReplace, Grouping)
 	free(output);
 	return;
 }
+TEST(PatternReplace, Grouping2)
+{
+	const char* find="(?<=中央)(?<ac1>空调)|(?<=家用)(?<ac2>空调)";
+	const char* replacement="${ac1:+Air conditioner:${ac2:+立式空调}}";
+	const char* input="中央空调，家用空调，只有第一个空调会被替换。";
+	char* output=NULL;
+	size_t output_sz=0;
+
+	simple_replace(find, replacement, input, strlen(input),&output, &output_sz);
+	EXPECT_TRUE(output_sz>0);
+//	EXPECT_STREQ(output, expect);
+	printf("%s\n", output);
+	free(output);
+	return;
+}
+
 
 TEST(PatternReplace, Non_Zero_Terminated)
 {