Fix void crash in kge.

editor_prompt should replace the status line when active

.idea/workspace.xml

@@ -34,8 +34,9 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="e1fe3ab0-3650-4fca-8664-a247d5dfa457" name="Changes" comment="Actually add the screenshot.">
-      <change beforePath="$PROJECT_DIR$/.github/workflows/release.yml" beforeDir="false" afterPath="$PROJECT_DIR$/.github/workflows/release.yml" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/CMakeLists.txt" beforeDir="false" afterPath="$PROJECT_DIR$/CMakeLists.txt" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/GUIRenderer.cc" beforeDir="false" afterPath="$PROJECT_DIR$/GUIRenderer.cc" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -128,9 +129,9 @@
     </key>
   </component>
   <component name="RunManager" selected="CMake Application.kge">
-    <configuration default="true" type="CLionExternalRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true">
+    <configuration default="true" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true">
       <method v="2">
-        <option name="CLION.EXTERNAL.BUILD" enabled="true" />
+        <option name="com.jetbrains.cidr.execution.CidrBuildBeforeRunTaskProvider$BuildBeforeRunTask" enabled="true" />
       </method>
     </configuration>
     <configuration name="imgui" type="CMakeRunConfiguration" factoryName="Application" REDIRECT_INPUT="false" ELEVATE="false" USE_EXTERNAL_CONSOLE="false" EMULATE_TERMINAL="false" PASS_PARENT_ENVS_2="true" PROJECT_NAME="kte" TARGET_NAME="imgui" CONFIG_NAME="Debug">
@@ -169,7 +170,7 @@
       <workItem from="1764539556448" duration="156000" />
       <workItem from="1764539725338" duration="1075000" />
       <workItem from="1764542392763" duration="3512000" />
-      <workItem from="1764548345516" duration="9962000" />
+      <workItem from="1764548345516" duration="12773000" />
     </task>
     <task id="LOCAL-00001" summary="Add undo/redo infrastructure and buffer management additions.">
       <option name="closed" value="true" />

Buffer.h

@@ -5,6 +5,7 @@
 #define KTE_BUFFER_H
 
 #include <cstddef>
+#include <memory>
 #include <string>
 #include <vector>
 #include <string_view>

CMakeLists.txt

@@ -4,7 +4,7 @@ project(kte)
 include(GNUInstallDirs)
 
 set(CMAKE_CXX_STANDARD 17)
-set(KTE_VERSION "1.0.1")
+set(KTE_VERSION "1.0.4")
 
 # Default to terminal-only build to avoid SDL/OpenGL dependency by default.
 # Enable with -DBUILD_GUI=ON when SDL2/OpenGL/Freetype are available.
@@ -201,4 +201,5 @@ if (${BUILD_GUI})
     endif ()
     # Install kge man page only when GUI is built
     install(FILES docs/kge.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
+    install(FILES kge.png DESTINATION ${CMAKE_INSTALL_PREFIX}/share/icons)
 endif ()

GUIRenderer.cc

@@ -1,5 +1,7 @@
+#include <algorithm>
 #include <cmath>
 #include <cstdio>
+#include <cstdlib>
 #include <filesystem>
 #include <limits>
 #include <string>
@@ -149,14 +151,14 @@ GUIRenderer::Draw(Editor &ed)
 				}
 			}
 		}
-		// Handle mouse click before rendering to avoid dependent on drawn items
-		if (ImGui::IsWindowHovered() && ImGui::IsMouseClicked(ImGuiMouseButton_Left)) {
-			ImVec2 mp = ImGui::GetIO().MousePos;
-			// Compute viewport-relative row so (0) is top row of the visible area
-			float vy_f = (mp.y - list_origin.y - scroll_y) / row_h;
-			long vy    = static_cast<long>(vy_f);
-			if (vy < 0)
-				vy = 0;
+  // Handle mouse click before rendering to avoid dependent on drawn items
+  if (ImGui::IsWindowHovered() && ImGui::IsMouseClicked(ImGuiMouseButton_Left)) {
+      ImVec2 mp = ImGui::GetIO().MousePos;
+      // Compute viewport-relative row so (0) is top row of the visible area
+      float vy_f = (mp.y - list_origin.y - scroll_y) / row_h;
+      long vy    = static_cast<long>(vy_f);
+      if (vy < 0)
+          vy = 0;
 
 			// Clamp vy within visible content height to avoid huge jumps
 			ImVec2 cr_min = ImGui::GetWindowContentRegionMin();
@@ -168,70 +170,75 @@ GUIRenderer::Draw(Editor &ed)
 			if (vy >= vis_rows)
 				vy = vis_rows - 1;
 
-			// Translate viewport row to buffer row using Buffer::Rowoffs
-			std::size_t by = buf->Rowoffs() + static_cast<std::size_t>(vy);
-			if (by >= lines.size()) {
-				if (!lines.empty())
-					by = lines.size() - 1;
-				else
-					by = 0;
-			}
+            // Translate viewport row to buffer row using Buffer::Rowoffs
+            std::size_t by = buf->Rowoffs() + static_cast<std::size_t>(vy);
+            if (by >= lines.size()) {
+                if (!lines.empty())
+                    by = lines.size() - 1;
+                else
+                    by = 0;
+            }
 
-			// Compute desired pixel X inside the viewport content (subtract horizontal scroll)
-			float px = (mp.x - list_origin.x - scroll_x);
-			if (px < 0.0f)
-				px = 0.0f;
+            // Compute desired pixel X inside the viewport content (subtract horizontal scroll)
+            float px = (mp.x - list_origin.x - scroll_x);
+            if (px < 0.0f)
+                px = 0.0f;
 
-			// Convert pixel X to a render-column target including horizontal col offset
-			// Use our own tab expansion of width 8 to match command layer logic.
-			const std::string &line_clicked = lines[by];
-			const std::size_t tabw          = 8;
-			// We iterate source columns computing absolute rendered column (rx_abs) from 0,
-			// then translate to viewport-space by subtracting Coloffs.
-			std::size_t coloffs = buf->Coloffs();
-			std::size_t rx_abs  = 0; // absolute rendered column
-			std::size_t i       = 0; // source column iterator
+            // Empty buffer guard: if there are no lines yet, just move to 0:0
+            if (lines.empty()) {
+                Execute(ed, CommandId::MoveCursorTo, std::string("0:0"));
+            } else {
+                // Convert pixel X to a render-column target including horizontal col offset
+                // Use our own tab expansion of width 8 to match command layer logic.
+                const std::string &line_clicked = lines[by];
+                const std::size_t tabw          = 8;
+                // We iterate source columns computing absolute rendered column (rx_abs) from 0,
+                // then translate to viewport-space by subtracting Coloffs.
+                std::size_t coloffs = buf->Coloffs();
+                std::size_t rx_abs  = 0; // absolute rendered column
+                std::size_t i       = 0; // source column iterator
 
-			// Fast-forward i until rx_abs >= coloffs to align with leftmost visible column
-			if (!line_clicked.empty() && coloffs > 0) {
-				while (i < line_clicked.size() && rx_abs < coloffs) {
-					if (line_clicked[i] == '\t') {
-						rx_abs += (tabw - (rx_abs % tabw));
-					} else {
-						rx_abs += 1;
-					}
-					++i;
-				}
-			}
+                // Fast-forward i until rx_abs >= coloffs to align with leftmost visible column
+                if (!line_clicked.empty() && coloffs > 0) {
+                    while (i < line_clicked.size() && rx_abs < coloffs) {
+                        if (line_clicked[i] == '\t') {
+                            rx_abs += (tabw - (rx_abs % tabw));
+                        } else {
+                            rx_abs += 1;
+                        }
+                        ++i;
+                    }
+                }
 
-			// Now search for closest source column to clicked px within/after viewport
-			std::size_t best_col = i; // default to first visible column
-			float best_dist      = std::numeric_limits<float>::infinity();
-			while (true) {
-				// For i in [current..size], evaluate candidate including the implicit end position
-				std::size_t rx_view = (rx_abs >= coloffs) ? (rx_abs - coloffs) : 0;
-				float rx_px         = static_cast<float>(rx_view) * space_w;
-				float dist          = std::fabs(px - rx_px);
-				if (dist <= best_dist) {
-					best_dist = dist;
-					best_col  = i;
-				}
-				if (i == line_clicked.size())
-					break;
-				// advance to next source column
-				if (line_clicked[i] == '\t') {
-					rx_abs += (tabw - (rx_abs % tabw));
-				} else {
-					rx_abs += 1;
-				}
-				++i;
-			}
+                // Now search for closest source column to clicked px within/after viewport
+                std::size_t best_col = i; // default to first visible column
+                float best_dist      = std::numeric_limits<float>::infinity();
+                while (true) {
+                    // For i in [current..size], evaluate candidate including the implicit end position
+                    std::size_t rx_view = (rx_abs >= coloffs) ? (rx_abs - coloffs) : 0;
+                    float rx_px         = static_cast<float>(rx_view) * space_w;
+                    float dist          = std::fabs(px - rx_px);
+                    if (dist <= best_dist) {
+                        best_dist = dist;
+                        best_col  = i;
+                    }
+                    if (i == line_clicked.size())
+                        break;
+                    // advance to next source column
+                    if (line_clicked[i] == '\t') {
+                        rx_abs += (tabw - (rx_abs % tabw));
+                    } else {
+                        rx_abs += 1;
+                    }
+                    ++i;
+                }
 
-			// Dispatch absolute buffer coordinates (row:col)
-			char tmp[64];
-			std::snprintf(tmp, sizeof(tmp), "%zu:%zu", by, best_col);
-			Execute(ed, CommandId::MoveCursorTo, std::string(tmp));
-		}
+                // Dispatch absolute buffer coordinates (row:col)
+                char tmp[64];
+                std::snprintf(tmp, sizeof(tmp), "%zu:%zu", by, best_col);
+                Execute(ed, CommandId::MoveCursorTo, std::string(tmp));
+            }
+        }
 		// Cache current horizontal offset in rendered columns
 		const std::size_t coloffs_now = buf->Coloffs();
 		for (std::size_t i = rowoffs; i < lines.size(); ++i) {
@@ -280,28 +287,59 @@ GUIRenderer::Draw(Editor &ed)
 		}
 		ImGui::EndChild();
 
-		// Status bar spanning full width
-		ImGui::Separator();
+  // Status bar spanning full width
+  ImGui::Separator();
 
-		// Build three segments: left (app/version/buffer/dirty), middle (message), right (cursor/mark)
-		// Compute full content width and draw a filled background rectangle
-		ImVec2 win_pos = ImGui::GetWindowPos();
-		ImVec2 cr_min  = ImGui::GetWindowContentRegionMin();
-		ImVec2 cr_max  = ImGui::GetWindowContentRegionMax();
-		float x0       = win_pos.x + cr_min.x;
-		float x1       = win_pos.x + cr_max.x;
-		ImVec2 cursor  = ImGui::GetCursorScreenPos();
-		float bar_h    = ImGui::GetFrameHeight();
-		ImVec2 p0(x0, cursor.y);
-		ImVec2 p1(x1, cursor.y + bar_h);
-		ImU32 bg_col = ImGui::GetColorU32(ImGuiCol_HeaderActive);
-		ImGui::GetWindowDrawList()->AddRectFilled(p0, p1, bg_col);
-		// Build left text
-		std::string left;
-		left.reserve(256);
-		left += "kge"; // GUI app name
-		left += " ";
-		left += KTE_VERSION_STR;
+  // Compute full content width and draw a filled background rectangle
+  ImVec2 win_pos = ImGui::GetWindowPos();
+  ImVec2 cr_min  = ImGui::GetWindowContentRegionMin();
+  ImVec2 cr_max  = ImGui::GetWindowContentRegionMax();
+  float x0       = win_pos.x + cr_min.x;
+  float x1       = win_pos.x + cr_max.x;
+  ImVec2 cursor  = ImGui::GetCursorScreenPos();
+  float bar_h    = ImGui::GetFrameHeight();
+  ImVec2 p0(x0, cursor.y);
+  ImVec2 p1(x1, cursor.y + bar_h);
+  ImU32 bg_col = ImGui::GetColorU32(ImGuiCol_HeaderActive);
+  ImGui::GetWindowDrawList()->AddRectFilled(p0, p1, bg_col);
+  // If a prompt is active, replace the entire status bar with the prompt text
+  if (ed.PromptActive()) {
+      std::string msg = ed.PromptLabel();
+      if (!msg.empty()) msg += ": ";
+      std::string ptext = ed.PromptText();
+      auto kind         = ed.CurrentPromptKind();
+      if (kind == Editor::PromptKind::OpenFile || kind == Editor::PromptKind::SaveAs ||
+          kind == Editor::PromptKind::Chdir) {
+          const char *home_c = std::getenv("HOME");
+          if (home_c && *home_c) {
+              std::string home(home_c);
+              if (ptext.rfind(home, 0) == 0) {
+                  std::string rest = ptext.substr(home.size());
+                  if (rest.empty())
+                      ptext = "~";
+                  else if (!rest.empty() && (rest[0] == '/' || rest[0] == '\\'))
+                      ptext = std::string("~") + rest;
+              }
+          }
+      }
+      msg += ptext;
+
+      float pad = 6.f;
+      ImVec2 msg_sz = ImGui::CalcTextSize(msg.c_str());
+      float left_x = p0.x + pad;
+      ImGui::PushClipRect(ImVec2(p0.x, p0.y), ImVec2(p1.x, p1.y), true);
+      ImGui::SetCursorScreenPos(ImVec2(left_x, p0.y + (bar_h - msg_sz.y) * 0.5f));
+      ImGui::TextUnformatted(msg.c_str());
+      ImGui::PopClipRect();
+      // Advance cursor to after the bar to keep layout consistent
+      ImGui::Dummy(ImVec2(x1 - x0, bar_h));
+  } else {
+  // Build left text
+  std::string left;
+  left.reserve(256);
+  left += "kge"; // GUI app name
+  left += " ";
+  left += KTE_VERSION_STR;
 		std::string fname;
 		try {
 			fname = ed.DisplayNameFor(*buf);
@@ -400,8 +438,9 @@ GUIRenderer::Draw(Editor &ed)
 				ImGui::PopClipRect();
 			}
 		}
-		// Advance cursor to after the bar to keep layout consistent
-		ImGui::Dummy(ImVec2(x1 - x0, bar_h));
+  // Advance cursor to after the bar to keep layout consistent
+  ImGui::Dummy(ImVec2(x1 - x0, bar_h));
+  }
 	}
 
 	ImGui::End();

ROADMAP.md

@@ -5,3 +5,6 @@ ROADMAP / TODO:
 - [ ] The undo system should actually work
 - [ ] Able to mark buffers as read-only
 - [ ] Built-in help text
+- [ ] Shorten paths in the homedir with ~
+- [ ] When the filename is longer than the message window, scoot left to
+  to keep it in view

TerminalRenderer.cc

@@ -1,6 +1,7 @@
 #include <algorithm>
 #include <cstdio>
 #include <filesystem>
+#include <cstdlib>
 #include <ncurses.h>
 #include <string>
 
@@ -149,13 +150,50 @@ TerminalRenderer::Draw(Editor &ed)
 		mvaddstr(0, 0, "[no buffer]");
 	}
 
-	// Status line (inverse) — left: app/version/buffer/dirty, middle: message, right: cursor/mark
-	move(rows - 1, 0);
-	attron(A_REVERSE);
+ // Status line (inverse)
+ move(rows - 1, 0);
+ attron(A_REVERSE);
 
-	// Fill the status line with spaces first
-	for (int i = 0; i < cols; ++i)
-		addch(' ');
+ // Fill the status line with spaces first
+ for (int i = 0; i < cols; ++i)
+     addch(' ');
+
+ // If a prompt is active, replace the status bar with the full prompt text
+ if (ed.PromptActive()) {
+     // Build prompt text: "Label: text" and shorten HOME path for file-related prompts
+     std::string msg = ed.PromptLabel();
+     if (!msg.empty())
+         msg += ": ";
+     std::string ptext = ed.PromptText();
+     auto kind         = ed.CurrentPromptKind();
+     if (kind == Editor::PromptKind::OpenFile || kind == Editor::PromptKind::SaveAs ||
+         kind == Editor::PromptKind::Chdir) {
+         const char *home_c = std::getenv("HOME");
+         if (home_c && *home_c) {
+             std::string home(home_c);
+             // Ensure we match only at the start
+             if (ptext.rfind(home, 0) == 0) {
+                 std::string rest = ptext.substr(home.size());
+                 if (rest.empty())
+                     ptext = "~";
+                 else if (rest[0] == '/' || rest[0] == '\\')
+                     ptext = std::string("~") + rest;
+             }
+         }
+     }
+     msg += ptext;
+
+     // Draw left-aligned, clipped to width
+     if (!msg.empty())
+         mvaddnstr(rows - 1, 0, msg.c_str(), std::max(0, cols));
+
+     // End status rendering for prompt mode
+     attroff(A_REVERSE);
+     // Restore logical cursor position in content area
+     if (saved_cur_y >= 0 && saved_cur_x >= 0)
+         move(saved_cur_y, saved_cur_x);
+     return;
+ }
 
 	// Build left segment
 	std::string left;
@@ -243,10 +281,10 @@ TerminalRenderer::Draw(Editor &ed)
 	if (llen > 0)
 		mvaddnstr(rows - 1, 0, left.c_str(), llen);
 
-	// Draw right, flush to end
-	int rstart = std::max(0, cols - rlen);
-	if (rlen > 0)
-		mvaddnstr(rows - 1, rstart, right.c_str(), rlen);
+ // Draw right, flush to end
+ int rstart = std::max(0, cols - rlen);
+ if (rlen > 0)
+     mvaddnstr(rows - 1, rstart, right.c_str(), rlen);
 
 	// Middle message
 	const std::string &msg = ed.Status();
@@ -262,7 +300,7 @@ TerminalRenderer::Draw(Editor &ed)
 		}
 	}
 
-	attroff(A_REVERSE);
+ attroff(A_REVERSE);
 
 	// Restore terminal cursor to the content position so a visible caret
 	// remains in the editing area (not on the status line).

UndoNode.h

@@ -1,10 +1,11 @@
 #ifndef KTE_UNDONODE_H
 #define KTE_UNDONODE_H
 
+#include <cstdint>
 #include <string>
 
 
-enum class UndoType : uint8_t {
+enum class UndoType : std::uint8_t {
 	Insert,
 	Delete,
 	Paste,

default-gui.nix

@@ -45,6 +45,8 @@ stdenv.mkDerivation {
     installManPage ../docs/kte.1
     installManPage ../docs/kge.1
 
+    mkdir -p $out/share/icons
+    cp ../kge.png $out/share/icons/
 
     runHook postInstall
   '';

default.nix

@@ -45,6 +45,9 @@ stdenv.mkDerivation {
     installManPage ../docs/kte.1
     installManPage ../docs/kge.1
 
+    mkdir -p $out/share/icons
+    cp ../kge.png $out/share/icons/
+
     runHook postInstall
   '';
 }

flake.lock

@@ -2,15 +2,15 @@
   "nodes": {
     "nixpkgs": {
       "locked": {
-        "lastModified": 1764242076,
-        "narHash": "sha256-sKoIWfnijJ0+9e4wRvIgm/HgE27bzwQxcEmo2J/gNpI=",
-        "owner": "nixos",
+        "lastModified": 1764517877,
+        "narHash": "sha256-pp3uT4hHijIC8JUK5MEqeAWmParJrgBVzHLNfJDZxg4=",
+        "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "2fad6eac6077f03fe109c4d4eb171cf96791faa4",
+        "rev": "2d293cbfa5a793b4c50d17c05ef9e385b90edf6c",
         "type": "github"
       },
       "original": {
-        "owner": "nixos",
+        "owner": "NixOS",
         "ref": "nixos-unstable",
         "repo": "nixpkgs",
         "type": "github"

flake.nix

@@ -1,21 +1,18 @@
 {
-  description = "Kyle's Text Editor";
+  description = "kyle's text editor";
 
-  inputs = {
-    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
-  };
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
 
-  outputs =
-    { self, nixpkgs }:
+  outputs = inputs @ { self, nixpkgs, ... }:
     let
-      pkgs = import nixpkgs { system = "x86_64-linux"; };
-    in
-    {
-      packages.x86_64-linux = {
-        default = pkgs.callPackage ./default-nogui.nix { };
-        kge     = pkgs.callPackage ./default-gui.nix   { };
-        kte     = pkgs.callPackage ./default-nogui.nix { };
-        full    = pkgs.callPackage ./default.nix       { };
-      };
+      eachSystem = nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed;
+      pkgsFor = system: import nixpkgs { inherit system; };
+    in {
+      packages = eachSystem (system: {
+        default = (pkgsFor system).callPackage ./default-nogui.nix { };
+        kge     = (pkgsFor system).callPackage ./default-gui.nix   { };
+        kte     = (pkgsFor system).callPackage ./default-nogui.nix { };
+        full    = (pkgsFor system).callPackage ./default.nix       { };
+      });
     };
-}
+}