Fixed word-wrapping which would never wrap after a 1 character word. (thanks @sronsse)

imgui_demo.cpp

@@ -362,7 +362,7 @@ void ImGui::ShowTestWindow(bool* p_open)
             ImVec2 pos = ImGui::GetCursorScreenPos();
             ImGui::GetWindowDrawList()->AddRectFilled(ImVec2(pos.x + wrap_width, pos.y), ImVec2(pos.x + wrap_width + 10, pos.y + ImGui::GetTextLineHeight()), IM_COL32(255,0,255,255));
             ImGui::PushTextWrapPos(ImGui::GetCursorPos().x + wrap_width);
-            ImGui::Text("lazy dog. This paragraph is made to fit within %.0f pixels. The quick brown fox jumps over the lazy dog.", wrap_width);
+            ImGui::Text("The lazy dog is a good dog. This paragraph is made to fit within %.0f pixels. Testing a 1 character word. The quick brown fox jumps over the lazy dog.", wrap_width);
             ImGui::GetWindowDrawList()->AddRect(ImGui::GetItemRectMin(), ImGui::GetItemRectMax(), IM_COL32(255,255,0,255));
             ImGui::PopTextWrapPos();
 
@@ -370,7 +370,7 @@ void ImGui::ShowTestWindow(bool* p_open)
             pos = ImGui::GetCursorScreenPos();
             ImGui::GetWindowDrawList()->AddRectFilled(ImVec2(pos.x + wrap_width, pos.y), ImVec2(pos.x + wrap_width + 10, pos.y + ImGui::GetTextLineHeight()), IM_COL32(255,0,255,255));
             ImGui::PushTextWrapPos(ImGui::GetCursorPos().x + wrap_width);
-            ImGui::Text("aaaaaaaa bbbbbbbb, cccccccc,dddddddd. eeeeeeee   ffffffff. gggggggg!hhhhhhhh");
+            ImGui::Text("aaaaaaaa bbbbbbbb, c cccccccc,dddddddd. d eeeeeeee   ffffffff. gggggggg!hhhhhhhh");
             ImGui::GetWindowDrawList()->AddRect(ImGui::GetItemRectMin(), ImGui::GetItemRectMax(), IM_COL32(255,255,0,255));
             ImGui::PopTextWrapPos();
 

imgui_draw.cpp

@@ -1851,6 +1851,7 @@ const char* ImFont::CalcWordWrapPositionA(float scale, const char* text, const c
             {
                 line_width += blank_width;
                 blank_width = 0.0f;
+                word_end = s;
             }
             blank_width += char_width;
             inside_word = false;