使用pcre2替代glib从中的regex进行替换。

plugin/business/pangu-http/pattern_replace.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <event2/buffer.h>
+enum replace_zone
+{
+	kZoneRequestUri = 0,
+	kZoneRequestHeaders,
+	kZoneRequestBody,
+	kZoneResponseHeader,
+	kZoneResponseBody,
+	kZoneMax
+};
+struct replace_rule
+{
+	enum replace_zone zone;
+	char * find;
+	char * replace_with;
+};
+
+
+//@parm exec_para example input:
+//zone=http_req_body; substitute=/中華民國/中华人民共和国;zone=http_resp_header; substitute=/Content-Type:\btext\/html/Content-Type:\bvideo\/mp4
+//@return formated rule number.
+size_t format_replace_rule(const char * exec_para, struct replace_rule * replace, size_t n_replace);
+struct evbuffer * execute_replace_rule(const char * in, size_t in_sz, enum replace_zone zone, const struct replace_rule * rules, size_t n_rule);
+