From 73681795a46a4a3e4339a8fdb16bb899a8940c10 Mon Sep 17 00:00:00 2001
From: Kefu Chai <kchai@redhat.com>
Date: Tue, 9 Jan 2018 00:10:26 +0800
Subject: [PATCH] mon: s/boost::regex/std::regex/

Signed-off-by: Kefu Chai <kchai@redhat.com>
---
 src/mon/HealthMonitor.cc | 18 +++++++++---------
 src/mon/MDSMonitor.cc    | 18 +++++++++---------
 src/mon/MonCap.cc        | 14 ++++++++------
 3 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/src/mon/HealthMonitor.cc b/src/mon/HealthMonitor.cc
index e5c331714e954..16e3a069043bd 100644
--- a/src/mon/HealthMonitor.cc
+++ b/src/mon/HealthMonitor.cc
@@ -15,7 +15,7 @@
 #include <stdlib.h>
 #include <limits.h>
 #include <sstream>
-#include <boost/regex.hpp>
+#include <regex>
 
 #include "include/assert.h"
 #include "include/stringify.h"
@@ -119,20 +119,20 @@ void HealthMonitor::encode_pending(MonitorDBStore::TransactionRef t)
     pending_health.merge(p.second);
   }
   for (auto &p : pending_health.checks) {
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%hasorhave%"),
+      std::regex("%hasorhave%"),
       names[p.first].size() > 1 ? "have" : "has");
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%names%"), stringify(names[p.first]));
-    p.second.summary = boost::regex_replace(
+      std::regex("%names%"), stringify(names[p.first]));
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%plurals%"),
+      std::regex("%plurals%"),
       names[p.first].size() > 1 ? "s" : "");
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%isorare%"),
+      std::regex("%isorare%"),
       names[p.first].size() > 1 ? "are" : "is");
   }
 
diff --git a/src/mon/MDSMonitor.cc b/src/mon/MDSMonitor.cc
index e92538ff6fa99..53bac5d8ce87b 100644
--- a/src/mon/MDSMonitor.cc
+++ b/src/mon/MDSMonitor.cc
@@ -12,9 +12,9 @@
  * 
  */
 
+#include <regex>
 #include <sstream>
 #include <boost/utility.hpp>
-#include <boost/regex.hpp>
 
 #include "MDSMonitor.h"
 #include "FSCommands.h"
@@ -232,21 +232,21 @@ void MDSMonitor::encode_pending(MonitorDBStore::TransactionRef t)
   }
   pending_fsmap.get_health_checks(&new_checks);
   for (auto& p : new_checks.checks) {
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%num%"),
+      std::regex("%num%"),
       stringify(p.second.detail.size()));
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%plurals%"),
+      std::regex("%plurals%"),
       p.second.detail.size() > 1 ? "s" : "");
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%isorare%"),
+      std::regex("%isorare%"),
       p.second.detail.size() > 1 ? "are" : "is");
-    p.second.summary = boost::regex_replace(
+    p.second.summary = std::regex_replace(
       p.second.summary,
-      boost::regex("%hasorhave%"),
+      std::regex("%hasorhave%"),
       p.second.detail.size() > 1 ? "have" : "has");
   }
   encode_health(new_checks, t);
diff --git a/src/mon/MonCap.cc b/src/mon/MonCap.cc
index 094a3332248ad..f40b9d6669197 100644
--- a/src/mon/MonCap.cc
+++ b/src/mon/MonCap.cc
@@ -26,8 +26,8 @@
 #include "common/Formatter.h"
 
 #include <algorithm>
+#include <regex>
 
-#include <boost/regex.hpp>
 #include "include/assert.h"
 
 static inline bool is_not_alnum_space(char c)
@@ -340,12 +340,14 @@ mon_rwxa_t MonCapGrant::get_allowed(CephContext *cct,
 	  return 0;
         break;
       case StringConstraint::MATCH_TYPE_REGEX:
-        {
-	  boost::regex pattern(
-            p->second.value, boost::regex::extended | boost::regex::no_except);
-          if (pattern.empty() || !boost::regex_match(q->second, pattern))
+        try {
+	  std::regex pattern(
+            p->second.value, std::regex::extended);
+          if (!std::regex_match(q->second, pattern))
 	    return 0;
-        }
+        } catch(const std::regex_error&) {
+	  return 0;
+	}
         break;
       default:
         break;
-- 
2.39.5