Ongoing work: Find Documentation.

src/config.cc

@@ -134,6 +134,15 @@ void MainConfig::GenerateSource() {
   
   for (auto &i : source_json.get_child("clang_types"))
     source_cfg->clang_types[i.first] = i.second.get_value<std::string>();
+  
+  auto pt_doc_search=cfg.get_child("documentation_searches");
+  for(auto &pt_doc_search_lang: pt_doc_search) {
+    source_cfg->documentation_searches[pt_doc_search_lang.first].separator=pt_doc_search_lang.second.get<std::string>("separator");
+    auto &queries=source_cfg->documentation_searches.find(pt_doc_search_lang.first)->second.queries;
+    for(auto &i: pt_doc_search_lang.second.get_child("queries")) {
+      queries[i.first]=i.second.get_value<std::string>();
+    }
+  }
 }
 
 void MainConfig::GenerateDirectoryFilter() {

src/files.h

@@ -73,6 +73,7 @@ const std::string configjson =
 "        \"source_goto_declaration\": \"<primary>d\",\n"
 "        \"source_goto_method\": \"<primary>m\",\n"
 "        \"source_rename\": \"<primary>r\",\n"
+"        \"source_find_documentation\": \"<primary><shift>d\",\n"
 "        \"source_goto_next_diagnostic\": \"<primary>e\",\n"
 "        \"source_apply_fix_its\": \"<control>space\",\n"
 "        \"compile_and_run\": \"<primary>Return\",\n"
@@ -92,6 +93,18 @@ const std::string configjson =
 #endif
 "        \"make_command\": \"make\"\n"
 "    },\n"
+"    \"documentation_searches\": {\n"
+"        \"clang\": {\n"
+"            \"separator\": \"::\",\n"
+"            \"queries\": {\n"
+"                \"@empty\": \"https://www.google.com/search?btnI&q=site:http://www.cplusplus.com/reference/+\",\n"
+"                \"std\": \"https://www.google.com/search?btnI&q=site:http://www.cplusplus.com/reference/+\",\n"
+"                \"boost\": \"https://www.google.com/search?btnI&q=site:http://www.boost.org/doc/libs/1_59_0/+\",\n"
+"                \"Gtk\": \"https://www.google.com/search?btnI&q=site:https://developer.gnome.org/gtkmm/stable/+\",\n"
+"                \"@any\": \"https://www.google.com/search?btnI&q=\"\n"
+"            }\n"
+"        }\n"
+"    },\n"
 "    \"directoryfilter\": {\n"
 "        \"ignore\": [\n"
 "        ],\n"

src/menu.cc

@@ -54,6 +54,8 @@ Menu::Menu() {
   "      <menuitem action=\"SourceGotoLine\"/>\n"
   "      <menuitem action=\"SourceCenterCursor\"/>\n"
   "      <separator/>\n"
+  "      <menuitem action=\"SourceFindDocumentation\"/>\n"
+  "      <separator/>\n"
   "      <menuitem action=\"SourceGotoDeclaration\"/>\n"
   "      <menuitem action=\"SourceGotoMethod\"/>\n"
   "      <menuitem action=\"SourceRename\"/>\n"

src/source.cc

@@ -2345,6 +2345,89 @@ Source::ClangViewAutocomplete(file_path, project_path, language) {
     }
   };
   
+  get_token_data=[this]() {
+    const auto find_non_word_char=[](const std::string &str, size_t start_pos) {
+      for(size_t c=start_pos;c<str.size();c++) {
+        if(!((str[c]>='a' && str[c]<='z') ||
+             (str[c]>='A' && str[c]<='Z') ||
+             (str[c]>='0' && str[c]<='9') ||
+             str[c]=='_'))
+        return c;
+      }
+      return std::string::npos;
+    };
+    
+    std::vector<std::string> data;
+    if(source_readable) {
+      auto iter=get_buffer()->get_insert()->get_iter();
+      auto line=(unsigned)iter.get_line();
+      auto index=(unsigned)iter.get_line_index();
+      for(auto &token: *clang_tokens) {
+        auto cursor=token.get_cursor();
+        if(token.get_kind()==clang::Token_Identifier && cursor.has_type()) {
+          if(line==token.offsets.first.line-1 && index>=token.offsets.first.index-1 && index <=token.offsets.second.index-1) {
+            auto referenced=cursor.get_referenced();
+            if(referenced) {
+              auto usr=referenced.get_usr();
+              data.emplace_back("clang");
+              
+              //namespace - not working
+              size_t pos1=usr.find("@N@");
+              size_t pos2;
+              std::string first_namespace;
+              while(pos1!=std::string::npos) {
+                pos1+=3;
+                pos2=find_non_word_char(usr, pos1);
+                if(pos1!=std::string::npos && pos2!=std::string::npos) {
+                  auto ns=usr.substr(pos1, pos2-pos1);
+                  if(first_namespace.size()==0)
+                    first_namespace=ns;
+                  else if(ns==first_namespace || ns=="std")
+                    break;
+                  data.emplace_back(ns);
+                  pos1=usr.find("@N@", pos2);
+                }
+                else
+                  pos1=std::string::npos;
+              }
+              
+              //type
+              pos1=usr.find("@T@");
+              if(pos1==std::string::npos)
+                pos1=usr.find("@S@");
+              if(pos1!=std::string::npos) {
+                pos1+=3;
+                pos2=find_non_word_char(usr, pos1);
+              }
+              if(pos1!=std::string::npos) {
+                if(pos2!=std::string::npos)
+                  data.emplace_back(usr.substr(pos1, pos2-pos1));
+                else
+                  data.emplace_back(usr.substr(pos1));
+              }
+              
+              //function
+              pos1=usr.find("@F@");
+              if(pos1!=std::string::npos) {
+                pos1+=3;
+                pos2=find_non_word_char(usr, pos1);
+              }
+              if(pos1!=std::string::npos) {
+                if(pos2!=std::string::npos)
+                  data.emplace_back(usr.substr(pos1, pos2-pos1));
+                else
+                  data.emplace_back(usr.substr(pos1));
+              }
+              
+              break;
+            }
+          }
+        }
+      }
+    }
+    return data;
+  };
+  
   goto_next_diagnostic=[this]() {
     if(source_readable) {
       auto insert_offset=get_buffer()->get_insert()->get_iter().get_offset();

src/source.h

@@ -23,6 +23,12 @@ namespace Source {
   
   class Config {
   public:
+    class DocumentationSearch {
+    public:
+      std::string separator;
+      std::unordered_map<std::string, std::string> queries;
+    };
+    
     std::string style;
     std::string font;
     std::string spellcheck_language;
@@ -37,6 +43,8 @@ namespace Source {
     bool highlight_current_line;
     bool show_line_numbers;
     std::unordered_map<std::string, std::string> clang_types;
+    
+    std::unordered_map<std::string, DocumentationSearch> documentation_searches;
   };
   
   class Token {
@@ -104,6 +112,7 @@ namespace Source {
     std::function<std::pair<std::string, clang::Offset>()> get_declaration_location;
     std::function<void()> goto_method;
     std::function<Token()> get_token;
+    std::function<std::vector<std::string>()> get_token_data;
     std::function<size_t(const Token &token, const std::string &text)> rename_similar_tokens;
     std::function<void()> goto_next_diagnostic;
     std::function<void()> apply_fix_its;

src/window.cc

@@ -117,7 +117,10 @@ Window::Window() : box(Gtk::ORIENTATION_VERTICAL), notebook(directories), compil
         menu_item->set_sensitive((bool)notebook.get_current_view()->goto_next_diagnostic);
       
       if(auto menu_item=dynamic_cast<Gtk::MenuItem*>(menu.ui_manager->get_widget("/MenuBar/SourceMenu/SourceApplyFixIts")))
-      menu_item->set_sensitive((bool)notebook.get_current_view()->apply_fix_its);
+        menu_item->set_sensitive((bool)notebook.get_current_view()->apply_fix_its);
+      
+      if(auto menu_item=dynamic_cast<Gtk::MenuItem*>(menu.ui_manager->get_widget("/MenuBar/SourceMenu/SourceFindDocumentation")))
+        menu_item->set_sensitive((bool)notebook.get_current_view()->get_token_data);
     
       directories.select(notebook.get_current_view()->file_path);
       
@@ -296,6 +299,38 @@ void Window::create_menu() {
   menu.action_group->add(Gtk::Action::create("SourceRename", "Rename"), Gtk::AccelKey(menu.key_map["source_rename"]), [this]() {
     rename_token_entry();
   });
+  menu.action_group->add(Gtk::Action::create("SourceFindDocumentation", "Find Documentation"), Gtk::AccelKey(menu.key_map["source_find_documentation"]), [this]() {
+    if(notebook.get_current_page()!=-1) {
+      if(notebook.get_current_view()->get_token_data) {
+        auto data=notebook.get_current_view()->get_token_data();        
+        if(data.size()>0) {
+          auto documentation_search=Singleton::Config::source()->documentation_searches.find(data[0]);
+          if(documentation_search!=Singleton::Config::source()->documentation_searches.end()) {
+            std::string token_query;
+            for(size_t c=1;c<data.size();c++) {
+              if(data[c].size()>0) {
+                if(token_query.size()>0)
+                  token_query+=documentation_search->second.separator;
+                token_query+=data[c];
+              }
+            }
+            if(token_query.size()>0) {
+              std::unordered_map<std::string, std::string>::iterator query;
+              if(data[1].size()>0)
+                query=documentation_search->second.queries.find(data[1]);
+              else
+                query=documentation_search->second.queries.find("@empty");
+              if(query==documentation_search->second.queries.end())
+                query=documentation_search->second.queries.find("@any");
+              
+              if(query!=documentation_search->second.queries.end())
+                Singleton::terminal()->execute("open \""+query->second+token_query+"\"");
+            }
+          }
+        }
+      }
+    }
+  });
   menu.action_group->add(Gtk::Action::create("SourceGotoNextDiagnostic", "Go to next Diagnostic"), Gtk::AccelKey(menu.key_map["source_goto_next_diagnostic"]), [this]() {
     if(notebook.get_current_page()!=-1) {
       if(notebook.get_current_view()->goto_next_diagnostic) {