Added spellcheck using aspell to comments and strings. Please install (lib)aspell(-dev) and rm ~/.juci to test.

docs/install.md

@@ -4,7 +4,7 @@ Before installation, please install libclangmm, see [installation guide](http://
 
 ## Debian/Ubuntu
 ```sh
-sudo apt-get install pkg-config libboost-system-dev libboost-thread-dev libboost-filesystem-dev libboost-log-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev
+sudo apt-get install pkg-config libboost-system-dev libboost-thread-dev libboost-filesystem-dev libboost-log-dev libgtkmm-3.0-dev libgtksourceviewmm-3.0-dev libaspell-dev
 ```
 ```sh
 git clone http://github.com/cppit/jucipp.git
@@ -16,7 +16,7 @@ sudo make install
 
 ## OS X with Homebrew (http://brew.sh/)
 ```sh
-brew install pkg-config boost gtkmm3 gtksourceviewmm3
+brew install pkg-config boost gtkmm3 gtksourceviewmm3 aspell
 ```
 
 ```sh
@@ -36,7 +36,7 @@ Please wait until the following TODOs are resolved:
 
 Install dependencies(replace [arch] with i686 or x86_64 depending on your MSYS2 install):
 ```sh
-pacman -S patch autoconf automake-wrapper mingw-w64-[arch]-gtkmm3 mingw-w64-[arch]-boost
+pacman -S patch autoconf automake-wrapper mingw-w64-[arch]-gtkmm3 mingw-w64-[arch]-boost mingw-w64-[arch]-aspell
 ```
 
 Get juCi++ source:

src/CMakeLists.txt

@@ -56,6 +56,8 @@ validate(${GTKMM_FOUND} "gtkmm" "libgtkmm-dev" "gtkmm")
 pkg_check_modules(GTKSVMM gtksourceviewmm-3.0)
 validate(${GTKSVMM_FOUND} "gtksvmm" "libgtksvmm-dev" "gtkmmsv")
 
+find_package(ASPELL REQUIRED)
+
 set(source_files juci.h
     juci.cc	
     menu.h
@@ -105,7 +107,8 @@ if(${validation})
     ${GTKMM_INCLUDE_DIRS}
     ${GTKSVMM_INCLUDE_DIRS}
     ${LCL_INCLUDE_DIRS}
-    ${LIBCLANG_INCLUDE_DIRS})
+    ${LIBCLANG_INCLUDE_DIRS}
+    ${ASPELL_INCLUDE_DIR})
 
   link_directories(
     ${GTKMM_LIBRARY_DIRS}
@@ -128,6 +131,7 @@ if(${validation})
     ${GTKMM_LIBRARIES}
     ${GTKSVMM_LIBRARIES}
     ${Boost_LIBRARIES}
+    ${ASPELL_LIBRARIES}
 #    ${PYTHON_LIBRARIES}
     )
 

src/config.cc

@@ -46,6 +46,8 @@ void MainConfig::GenerateSource() {
   auto source_cfg = Singleton::Config::source();
   auto source_json = cfg.get_child("source");
   
+  source_cfg->spellcheck_language = source_json.get<std::string>("spellcheck_language");
+  
   source_cfg->default_tab_char = source_json.get<char>("default_tab_char");
   source_cfg->default_tab_size = source_json.get<unsigned>("default_tab_size");
   source_cfg->auto_tab_char_and_size = source_json.get<bool>("auto_tab_char_and_size");

src/files.h

@@ -17,6 +17,7 @@ const std::string configjson =
 #endif
 #endif
 "//Use \"\" for default font, and for instance \"Monospace 12\" to also set size.\n"
+"        \"spellcheck_language\": \"en_US\", \n"
 "        \"clang_types\": {\n"
 "            \"8\": \"def:function\",\n"
 "            \"21\": \"def:function\",\n"

src/source.cc

@@ -7,14 +7,16 @@
 #include "singletons.h"
 #include <gtksourceview/gtksource.h>
 #include <boost/lexical_cast.hpp>
+#include <iostream>
 
-#include <iostream> //TODO: remove
 using namespace std; //TODO: remove
 
 namespace sigc {
   SIGC_FUNCTORS_DEDUCE_RESULT_TYPE_WITH_DECLTYPE
 }
 
+AspellConfig* spellcheck_config=NULL;
+
 Glib::RefPtr<Gsv::Language> Source::guess_language(const boost::filesystem::path &file_path) {
   auto language_manager=Gsv::LanguageManager::get_default();
   bool result_uncertain = false;
@@ -98,18 +100,43 @@ Source::View::View(const boost::filesystem::path &file_path): file_path(file_pat
   
   tabs_regex=std::regex(std::string("^(")+tab_char+"*)(.*)$");
   
-  get_buffer()->signal_changed().connect([this](){
-    auto iter=get_buffer()->get_insert()->get_iter();
-    if(iter.backward_char()) {
-      auto context_iter=iter;
-      if(context_iter.backward_char()) {
-        if(get_source_buffer()->iter_has_context_class(context_iter, "comment")) {
-          //TODO: get word, and spellcheck
-          //cout << "comment: " << (char)*iter << endl;
+  if(spellcheck_config==NULL) {
+    spellcheck_config=new_aspell_config();
+    aspell_config_replace(spellcheck_config, "lang", Singleton::Config::source()->spellcheck_language.c_str());
+  }
+
+  spellcheck_possible_err=new_aspell_speller(spellcheck_config);
+  spellcheck_checker=NULL;
+  if (aspell_error_number(spellcheck_possible_err) != 0)
+    std::cerr << "Spell check error: " << aspell_error_message(spellcheck_possible_err) << std::endl;
+  else {
+    spellcheck_checker = to_aspell_speller(spellcheck_possible_err);
+
+    auto tag=get_buffer()->create_tag("spellcheck_error");
+    tag->property_underline()=Pango::Underline::UNDERLINE_ERROR;
+    
+    get_buffer()->signal_changed().connect([this](){
+      auto iter=get_buffer()->get_insert()->get_iter();
+      if(iter.backward_char()) {
+        auto context_iter=iter;
+        if(context_iter.backward_char()) {
+          if(get_source_buffer()->iter_has_context_class(context_iter, "comment") || get_source_buffer()->iter_has_context_class(context_iter, "string")) {
+            if(*iter==32) { //Might have used space to split two words
+              auto first=iter;
+              auto second=iter;
+              if(first.backward_char() && second.forward_char()) {
+                get_buffer()->remove_tag_by_name("spellcheck_error", first, second);
+                spellcheck(first);
+                spellcheck(second);
+              }
+            }
+            else
+              spellcheck(iter);
+          }
         }
       }
-    }
-  });
+    });
+  }
 }
 
 void Source::View::search_occurrences_updated(GtkWidget* widget, GParamSpec* property, gpointer data) {
@@ -121,6 +148,8 @@ void Source::View::search_occurrences_updated(GtkWidget* widget, GParamSpec* pro
 Source::View::~View() {
   g_clear_object(&search_context);
   g_clear_object(&search_settings);
+  
+  delete_aspell_speller(spellcheck_checker);
 }
 
 void Source::View::search_highlight(const std::string &text, bool case_sensitive, bool regex) {
@@ -477,6 +506,31 @@ std::pair<char, unsigned> Source::View::find_tab_char_and_size() {
   return {found_tab_char, found_tab_size};
 }
 
+void Source::View::spellcheck(Gtk::TextIter iter) {
+  auto start=iter;
+  auto end=iter;
+  
+  while((*iter>=48 && *iter<=57) || (*iter>=65 && *iter<=90) || (*iter>=97 && *iter<=122) || *iter==95 || *iter>=128) {
+    start=iter;
+    if(!iter.backward_char())
+      break;
+  }
+  while((*end>=48 && *end<=57) || (*end>=65 && *end<=90) || (*end>=97 && *end<=122) || *end==95 || *end>=128) {
+    if(!end.forward_char())
+      break;
+  }
+  auto word=get_buffer()->get_text(start, end);
+  std::vector<Glib::ustring> words;
+  if(word.size()>0) {
+    auto correct = aspell_speller_check(spellcheck_checker, word.data(), word.bytes());
+    if(correct==0)
+      get_buffer()->apply_tag_by_name("spellcheck_error", start, end);
+    else
+      get_buffer()->remove_tag_by_name("spellcheck_error", start, end);
+  }
+}
+
+
 /////////////////////
 //// GenericView ////
 /////////////////////

src/source.h

@@ -15,6 +15,7 @@
 #include "selectiondialog.h"
 #include <set>
 #include <regex>
+#include <aspell.h>
 
 namespace Source {
   Glib::RefPtr<Gsv::Language> guess_language(const boost::filesystem::path &file_path);
@@ -23,6 +24,7 @@ namespace Source {
   public:
     std::string style;
     std::string font;
+    std::string spellcheck_language;
     bool auto_tab_char_and_size;
     char default_tab_char;
     unsigned default_tab_size;
@@ -91,6 +93,10 @@ namespace Source {
     GtkSourceSearchContext *search_context;
     GtkSourceSearchSettings *search_settings;
     static void search_occurrences_updated(GtkWidget* widget, GParamSpec* property, gpointer data);
+    
+    AspellCanHaveError *spellcheck_possible_err;
+    AspellSpeller *spellcheck_checker;
+    void spellcheck(Gtk::TextIter iter);
   };  // class View
   
   class GenericView : public View {