using pimpl to isolate boost::regex headers - refs #2439

include/mapnik/evaluate_global_attributes.hpp

@@ -34,12 +34,6 @@
 #include <mapnik/function_call.hpp>
 #include <mapnik/util/variant.hpp>
 
-#if defined(BOOST_REGEX_HAS_ICU)
-#include <boost/regex/icu.hpp>
-#else
-#include <boost/regex.hpp>
-#endif
-
 namespace mapnik {
 
 namespace {
@@ -107,24 +101,13 @@ struct evaluate_expression : util::static_visitor<T>
     value_type operator() (regex_match_node const& x) const
     {
         value_type v = util::apply_visitor(*this, x.expr);
-#if defined(BOOST_REGEX_HAS_ICU)
+        return x.apply(v);
-        return boost::u32regex_match(v.to_unicode(),x.pattern);
-#else
-        return boost::regex_match(v.to_string(),x.pattern);
-#endif
-
     }
 
     value_type operator() (regex_replace_node const& x) const
     {
         value_type v = util::apply_visitor(*this, x.expr);
-#if defined(BOOST_REGEX_HAS_ICU)
+        return x.apply(v);
-        return boost::u32regex_replace(v.to_unicode(),x.pattern,x.format);
-#else
-        std::string repl = boost::regex_replace(v.to_string(),x.pattern,x.format);
-        mapnik::transcoder tr_("utf8");
-        return tr_.transcode(repl.c_str());
-#endif
     }
 
     value_type operator() (unary_function_call const& call) const
@@ -206,24 +189,13 @@ struct evaluate_expression<T, boost::none_t> : util::static_visitor<T>
     value_type operator() (regex_match_node const& x) const
     {
         value_type v = util::apply_visitor(*this, x.expr);
-#if defined(BOOST_REGEX_HAS_ICU)
+        return x.apply(v);
-        return boost::u32regex_match(v.to_unicode(),x.pattern);
-#else
-        return boost::regex_match(v.to_string(),x.pattern);
-#endif
-
     }
 
     value_type operator() (regex_replace_node const& x) const
     {
         value_type v = util::apply_visitor(*this, x.expr);
-#if defined(BOOST_REGEX_HAS_ICU)
+        return x.apply(v);
-        return boost::u32regex_replace(v.to_unicode(),x.pattern,x.format);
-#else
-        std::string repl = boost::regex_replace(v.to_string(),x.pattern,x.format);
-        mapnik::transcoder tr_("utf8");
-        return tr_.transcode(repl.c_str());
-#endif
     }
 
     value_type operator() (unary_function_call const& call) const

include/mapnik/expression_evaluator.hpp

@@ -29,12 +29,6 @@
 #include <mapnik/expression_node.hpp>
 #include <mapnik/function_call.hpp>
 #include <mapnik/util/variant.hpp>
-// boost
-#if defined(BOOST_REGEX_HAS_ICU)
-#include <boost/regex/icu.hpp>
-#else
-#include <boost/regex.hpp>
-#endif
 
 namespace mapnik
 {
@@ -130,24 +124,13 @@ struct evaluate : util::static_visitor<T1>
     value_type operator() (regex_match_node const& x) const
     {
         value_type v = util::apply_visitor(*this, x.expr);
-#if defined(BOOST_REGEX_HAS_ICU)
+        return x.apply(v);
-        return boost::u32regex_match(v.to_unicode(),x.pattern);
-#else
-        return boost::regex_match(v.to_string(),x.pattern);
-#endif
-
     }
 
     value_type operator() (regex_replace_node const& x) const
     {
         value_type v = util::apply_visitor(*this, x.expr);
-#if defined(BOOST_REGEX_HAS_ICU)
+        return x.apply(v);
-        return boost::u32regex_replace(v.to_unicode(),x.pattern,x.format);
-#else
-        std::string repl = boost::regex_replace(v.to_string(),x.pattern,x.format);
-        mapnik::transcoder tr_("utf8");
-        return tr_.transcode(repl.c_str());
-#endif
     }
 
     value_type operator() (unary_function_call const& call) const

include/mapnik/expression_grammar_impl.hpp

@@ -69,21 +69,13 @@ binary_function_types::binary_function_types()
 template <typename T0,typename T1>
 expr_node regex_match_impl::operator() (T0 & node, T1 const& pattern) const
 {
-#if defined(BOOST_REGEX_HAS_ICU)
+    return regex_match_node(tr_,node,pattern);
-    return regex_match_node(node,tr_.transcode(pattern.c_str()));
-#else
-    return regex_match_node(node,pattern);
-#endif
 }
 
 template <typename T0,typename T1,typename T2>
 expr_node regex_replace_impl::operator() (T0 & node, T1 const& pattern, T2 const& format) const
 {
-#if defined(BOOST_REGEX_HAS_ICU)
+    return regex_replace_node(tr_,node,pattern,format);
-    return regex_replace_node(node,tr_.transcode(pattern.c_str()),tr_.transcode(format.c_str()));
-#else
-    return regex_replace_node(node,pattern,format);
-#endif
 }
 
 template <typename Iterator>

include/mapnik/expression_node.hpp

@@ -30,13 +30,6 @@
 #include <mapnik/function_call.hpp>
 #include <mapnik/expression_node_types.hpp>
 
-// boost
-#if defined(BOOST_REGEX_HAS_ICU)
-#include <boost/regex/icu.hpp>
-#else
-#include <boost/regex.hpp>
-#endif
-
 namespace mapnik
 {
 
@@ -87,43 +80,6 @@ struct binary_node
     expr_node left,right;
 };
 
-#if defined(BOOST_REGEX_HAS_ICU)
-
-struct regex_match_node
-{
-    regex_match_node (expr_node const& a, mapnik::value_unicode_string const& ustr);
-    expr_node expr;
-    boost::u32regex pattern;
-};
-
-
-struct regex_replace_node
-{
-    regex_replace_node (expr_node const& a, mapnik::value_unicode_string const& ustr, mapnik::value_unicode_string const& f);
-    expr_node expr;
-    boost::u32regex pattern;
-    mapnik::value_unicode_string format;
-};
-
-#else
-
-struct regex_match_node
-{
-    regex_match_node (expr_node const& a, std::string const& str);
-    expr_node expr;
-    boost::regex pattern;
-};
-
-
-struct regex_replace_node
-{
-    regex_replace_node (expr_node const& a, std::string const& str, std::string const& f);
-    expr_node expr;
-    boost::regex pattern;
-    std::string format;
-};
-#endif
-
 struct unary_function_call
 {
     using argument_type = expr_node;
@@ -146,6 +102,29 @@ struct binary_function_call
     argument_type arg2;
 };
 
+// pimpl
+struct _regex_match_impl;
+struct _regex_replace_impl;
+
+struct regex_match_node
+{
+    regex_match_node(transcoder const& tr, expr_node const& a, std::string const& ustr);
+    mapnik::value apply(mapnik::value const& v) const;
+    std::string to_string() const;
+    expr_node expr;
+    // TODO - use unique_ptr once https://github.com/mapnik/mapnik/issues/2457 is fixed
+    std::shared_ptr<_regex_match_impl> impl_;
+};
+
+struct regex_replace_node
+{
+    regex_replace_node(transcoder const& tr, expr_node const& a, std::string const& ustr, std::string const& f);
+    mapnik::value apply(mapnik::value const& v) const;
+    std::string to_string() const;
+    expr_node expr;
+    // TODO - use unique_ptr once https://github.com/mapnik/mapnik/issues/2457 is fixed
+    std::shared_ptr<_regex_replace_impl> impl_;
+};
 
 inline expr_node & operator- (expr_node& expr)
 {

src/expression_node.cpp

@@ -22,31 +22,135 @@
 
 #include <mapnik/expression_node.hpp>
 #include <mapnik/value_types.hpp>
+#include <mapnik/noncopyable.hpp>
+
+#if defined(BOOST_REGEX_HAS_ICU)
+#include <boost/regex/icu.hpp>
+#else
+#include <boost/regex.hpp>
+#endif
 
 namespace mapnik
 {
 
+struct _regex_match_impl : noncopyable {
 #if defined(BOOST_REGEX_HAS_ICU)
-
+    _regex_match_impl(value_unicode_string const& ustr) :
-regex_match_node::regex_match_node (expr_node const& a, mapnik::value_unicode_string const& ustr)
+        pattern_(boost::make_u32regex(ustr)) {}
-    : expr(a),
+    boost::u32regex pattern_;
-      pattern(boost::make_u32regex(ustr)) {}
-
-regex_replace_node::regex_replace_node (expr_node const& a, mapnik::value_unicode_string const& ustr, mapnik::value_unicode_string const& f)
-    : expr(a),
-      pattern(boost::make_u32regex(ustr)),
-      format(f) {}
-
 #else
-
+    _regex_match_impl(std::string const& ustr) :
-regex_match_node::regex_match_node (expr_node const& a, std::string const& str)
+        pattern_(ustr) {}
-    : expr(a),
+    boost::regex pattern_;
-      pattern(str) {}
-
-regex_replace_node::regex_replace_node (expr_node const& a, std::string const& str, std::string const& f)
-    : expr(a),
-      pattern(str),
-      format(f) {}
 #endif
+};
 
+struct _regex_replace_impl : noncopyable {
+#if defined(BOOST_REGEX_HAS_ICU)
+    _regex_replace_impl(value_unicode_string const& ustr, value_unicode_string const& f) :
+        pattern_(boost::make_u32regex(ustr)),
+        format_(f) {}
+    boost::u32regex pattern_;
+    value_unicode_string format_;
+#else
+    _regex_replace_impl(std::string const& ustr,std::string const& f) :
+        pattern_(ustr),
+        format_(f) {}
+    boost::regex pattern_;
+    std::string format_;
+#endif
+};
+
+
+regex_match_node::regex_match_node(transcoder const& tr,
+                                   expr_node const& a,
+                                   std::string const& ustr)
+    : expr(a),
+      impl_(new _regex_match_impl(
+#if defined(BOOST_REGEX_HAS_ICU)
+        tr.transcode(ustr.c_str())
+#else
+        ustr
+#endif
+        )) {}
+
+value regex_match_node::apply(value const& v) const
+{
+    auto const& pattern = impl_.get()->pattern_;
+#if defined(BOOST_REGEX_HAS_ICU)
+    return boost::u32regex_match(v.to_unicode(),pattern);
+#else
+    return boost::regex_match(v.to_string(),pattern);
+#endif
 }
+
+std::string regex_match_node::to_string() const
+{
+    std::string str_;
+    str_ +=".match('";
+    auto const& pattern = impl_.get()->pattern_;
+#if defined(BOOST_REGEX_HAS_ICU)
+    std::string utf8;
+    value_unicode_string ustr = value_unicode_string::fromUTF32( &pattern.str()[0], pattern.str().length());
+    to_utf8(ustr,utf8);
+    str_ += utf8;
+#else
+    str_ += pattern.str();
+#endif
+    str_ +="')";
+    return str_;
+}
+
+regex_replace_node::regex_replace_node(transcoder const& tr,
+                                       expr_node const& a,
+                                       std::string const& ustr,
+                                       std::string const& f)
+    : expr(a),
+      impl_(new _regex_replace_impl(
+#if defined(BOOST_REGEX_HAS_ICU)
+                     tr.transcode(ustr.c_str()),
+                     tr.transcode(f.c_str())
+#else
+                     ustr,
+                     f
+#endif
+                     )) {}
+
+value regex_replace_node::apply(value const& v) const
+{
+    auto const& pattern = impl_.get()->pattern_;
+    auto const& format = impl_.get()->format_;
+#if defined(BOOST_REGEX_HAS_ICU)
+    return boost::u32regex_replace(v.to_unicode(),pattern,format);
+#else
+    std::string repl = boost::regex_replace(v.to_string(),pattern,format);
+    transcoder tr_("utf8");
+    return tr_.transcode(repl.c_str());
+#endif
+}
+
+std::string regex_replace_node::to_string() const
+{
+    std::string str_;
+    str_ +=".replace(";
+    str_ += "'";
+    auto const& pattern = impl_.get()->pattern_;
+    auto const& format = impl_.get()->format_;
+#if defined(BOOST_REGEX_HAS_ICU)
+    std::string utf8;
+    value_unicode_string ustr = value_unicode_string::fromUTF32( &pattern.str()[0], pattern.str().length());
+    to_utf8(ustr,utf8);
+    str_ += utf8;
+    str_ +="','";
+    to_utf8(format ,utf8);
+    str_ += utf8;
+#else
+    str_ += pattern.str();
+    str_ +="','";
+    str_ += format;
+#endif
+    str_ +="')";
+    return str_;
+}
+
+}

src/expression_string.cpp

@@ -29,10 +29,6 @@
 #include <mapnik/attribute.hpp>
 #include <mapnik/value_types.hpp>
 #include <mapnik/value.hpp>
-// boost
-#if defined(BOOST_REGEX_HAS_ICU)
-#include <boost/regex/icu.hpp>          // for u32regex
-#endif
 
 namespace mapnik
 {
@@ -94,37 +90,13 @@ struct expression_string : util::static_visitor<void>
     void operator() (regex_match_node const & x) const
     {
         util::apply_visitor(*this,x.expr);
-        str_ +=".match('";
+        str_ += x.to_string();
-#if defined(BOOST_REGEX_HAS_ICU)
-        std::string utf8;
-        mapnik::value_unicode_string ustr = mapnik::value_unicode_string::fromUTF32( &x.pattern.str()[0] ,x.pattern.str().length());
-        to_utf8(ustr,utf8);
-        str_ += utf8;
-#else
-        str_ += x.pattern.str();
-#endif
-        str_ +="')";
     }
 
     void operator() (regex_replace_node const & x) const
     {
         util::apply_visitor(*this,x.expr);
-        str_ +=".replace(";
+        str_ += x.to_string();
-        str_ += "'";
-#if defined(BOOST_REGEX_HAS_ICU)
-        std::string utf8;
-        mapnik::value_unicode_string ustr = mapnik::value_unicode_string::fromUTF32( &x.pattern.str()[0] ,x.pattern.str().length());
-        to_utf8(ustr,utf8);
-        str_ += utf8;
-        str_ +="','";
-        to_utf8(x.format ,utf8);
-        str_ += utf8;
-#else
-        str_ += x.pattern.str();
-        str_ +="','";
-        str_ += x.format;
-#endif
-        str_ +="')";
     }
 
     void operator() (unary_function_call const& call) const