Merge branch 'master' into hierarchical-highlighters

README.asciidoc

@@ -339,6 +339,7 @@ object you want.
  * _W_: select the whole WORD
  * _s_: select the sentence
  * _p_: select the paragraph
+ * _␣_: select the whitespaces
  * _i_: select the current indentation block
  * _n_: select the number
 

src/highlighters.cc

@@ -547,6 +547,11 @@ void highlight_selections(const Context& context, HighlightFlags flags, DisplayB
         ColorPair sel_colors = get_color(primary ? "PrimarySelection" : "SecondarySelection");
         highlight_range(display_buffer, begin, end, false,
                         [&](DisplayAtom& atom) { atom.colors = sel_colors; });
+    }
+    for (size_t i = 0; i < context.selections().size(); ++i)
+    {
+        auto& sel = context.selections()[i];
+        const bool primary = (i == context.selections().main_index());
         ColorPair cur_colors = get_color(primary ? "PrimaryCursor" : "SecondaryCursor");
         highlight_range(display_buffer, sel.cursor(), buffer.char_next(sel.cursor()), false,
                         [&](DisplayAtom& atom) { atom.colors = cur_colors; });

src/input_handler.cc

@@ -842,6 +842,7 @@ private:
              kak_assert(false); // invalid for interactive insert
              break;
         }
+        if (mode != InsertMode::Append)
             selections.sort_and_merge_overlapping();
         selections.check_invariant();
         buffer.check_invariant();

src/ncurses.cc

@@ -211,7 +211,7 @@ using Utf8Policy = utf8::InvalidBytePolicy::Pass;
 using Utf8Iterator = utf8::utf8_iterator<const char*, Utf8Policy>;
 void addutf8str(WINDOW* win, Utf8Iterator begin, Utf8Iterator end)
 {
-    waddstr(win, std::string(begin.base(), end.base()).c_str());
+    waddstr(win, StringView(begin.base(), end.base()).zstr());
 }
 
 static CharCoord window_size(WINDOW* win)

src/normal.cc

@@ -839,6 +839,7 @@ void select_object(Context& context, int param)
             { 'W', select_word<WORD> },
             { 's', select_sentence },
             { 'p', select_paragraph },
+            { ' ', select_whitespaces },
             { 'i', select_indent },
             { 'n', select_number },
         };
@@ -880,6 +881,7 @@ void select_object(Context& context, int param)
     "W:    WORD               \n"
     "s:    sentence           \n"
     "p:    paragraph          \n"
+    "␣:    whitespaces        \n"
     "i:    indent             \n");
 }
 
@@ -1105,23 +1107,24 @@ void tabs_to_spaces(Context& context, int ts)
     auto& buffer = context.buffer();
     const CharCount opt_tabstop = context.options()["tabstop"].get<int>();
     const CharCount tabstop = ts == 0 ? opt_tabstop : ts;
+    std::vector<Selection> tabs;
+    std::vector<String> spaces;
     for (auto& sel : context.selections())
     {
         for (auto it = buffer.iterator_at(sel.min()),
-                  end = buffer.iterator_at(sel.max())+1; it != end;)
+                  end = buffer.iterator_at(sel.max())+1; it != end; ++it)
         {
             if (*it == '\t')
             {
                 CharCount col = get_column(buffer, opt_tabstop, it.coord());
                 CharCount end_col = (col / tabstop + 1) * tabstop;
-                it = buffer.erase(it, it+1);
-                it = buffer.insert(it, String{ ' ', end_col - col }) + (int)(end_col - col);
-                end = buffer.iterator_at(sel.max())+1;
-            }
-            else
-                ++it;
+                tabs.push_back({ it.coord() });
+                spaces.push_back(String{ ' ', end_col - col });
             }
         }
+    }
+    if (not tabs.empty())
+        SelectionList{ buffer, std::move(tabs) }.insert(spaces, InsertMode::Replace);
 }
 
 void spaces_to_tabs(Context& context, int ts)
@@ -1129,6 +1132,7 @@ void spaces_to_tabs(Context& context, int ts)
     auto& buffer = context.buffer();
     const CharCount opt_tabstop = context.options()["tabstop"].get<int>();
     const CharCount tabstop = ts == 0 ? opt_tabstop : ts;
+    std::vector<Selection> spaces;
     for (auto& sel : context.selections())
     {
         for (auto it = buffer.iterator_at(sel.min()),
@@ -1144,20 +1148,16 @@ void spaces_to_tabs(Context& context, int ts)
                     ++spaces_end;
                     ++col;
                 }
-
                 if ((col % tabstop) == 0)
-                {
-                    it = buffer.erase(spaces_beg, spaces_end);
-                    it = buffer.insert(it, "\t") + 1;
-                    end = buffer.iterator_at(sel.max())+1;
-                }
-                else
+                    spaces.push_back({spaces_beg.coord(), (spaces_end-1).coord()});
                 it = spaces_end;
             }
             else
                 ++it;
         }
     }
+    if (not spaces.empty())
+        SelectionList{ buffer, std::move(spaces) }.insert("\t"_str, InsertMode::Replace);
 }
 
 void undo(Context& context, int)

src/selectors.cc

@@ -375,6 +375,35 @@ static CharCount get_indent(const String& str, int tabstop)
     return indent;
 }
 
+Selection select_whitespaces(const Buffer& buffer, const Selection& selection, ObjectFlags flags)
+{
+    auto is_whitespace = [&](char c) {
+        return c == ' ' or c == '\t' or
+            (not (flags & ObjectFlags::Inner) and c == '\n');
+    };
+    BufferIterator first = buffer.iterator_at(selection.cursor());
+    BufferIterator last  = first;
+    if (flags & ObjectFlags::ToBegin)
+    {
+        if (is_whitespace(*first))
+        {
+            skip_while_reverse(first, buffer.begin(), is_whitespace);
+            if (not is_whitespace(*first))
+                ++first;
+        }
+    }
+    if (flags & ObjectFlags::ToEnd)
+    {
+        if (is_whitespace(*last))
+        {
+            skip_while(last, buffer.end(), is_whitespace);
+            --last;
+        }
+    }
+    return (flags & ObjectFlags::ToEnd) ? utf8_range(first, last)
+                                        : utf8_range(last, first);
+}
+
 static bool is_only_whitespaces(const String& str)
 {
     auto it = str.begin();

src/selectors.hh

@@ -212,6 +212,10 @@ Selection select_paragraph(const Buffer& buffer,
                            const Selection& selection,
                            ObjectFlags flags);
 
+Selection select_whitespaces(const Buffer& buffer,
+                             const Selection& selection,
+                             ObjectFlags flags);
+
 Selection select_indent(const Buffer& buffer,
                         const Selection& selection,
                         ObjectFlags flags);