From a6d0ada40989f79ee9e0e17192bc8d771ad385d7 Mon Sep 17 00:00:00 2001
From: mitchell <70453897+667e-11@users.noreply.github.com>
Date: Wed, 13 Aug 2014 20:05:17 -0400
Subject: Separate ^H from Backspace in the terminal version. Also have
 libtermkey take care of saving and restoring termios.

---
 doc/manual.md              |  1 +
 modules/textadept/keys.lua |  4 ++--
 src/cdk.patch              | 21 +++++++++++++++++++++
 src/textadept.c            | 25 +++++++------------------
 4 files changed, 31 insertions(+), 20 deletions(-)

diff --git a/doc/manual.md b/doc/manual.md
index 6d5ab8b6..18862919 100644
--- a/doc/manual.md
+++ b/doc/manual.md
@@ -1645,6 +1645,7 @@ made to CDK are in *src/cdk.patch* and listed as follows:
 * The `baseName` and `dirName` functions in *cdk.c* recognize Window's '\'
   directory separator.
 * Deactivated the `deleteFileCB` function in *fselect.c*.
+* Removed some of CDK's initial screen handling code.
 
 [CDK]: http://invisible-island.net/cdk/
 
diff --git a/modules/textadept/keys.lua b/modules/textadept/keys.lua
index ba2aac5e..c844bea6 100644
--- a/modules/textadept/keys.lua
+++ b/modules/textadept/keys.lua
@@ -602,8 +602,8 @@ elseif CURSES then
   keys.mA, keys.mE = buffer.vc_home_extend, buffer.line_end_extend
   keys.mU, keys.mD = buffer.page_up_extend, buffer.page_down_extend
   keys.cma, keys.cme = buffer.document_start, buffer.document_end
-  keys.cd, keys.md = buffer.clear, utils.delete_word
-  keys.ck = utils.cut_to_eol
+  keys.cd, keys.ch = buffer.clear, buffer.delete_back
+  keys.md, keys.ck = utils.delete_word, utils.cut_to_eol
 end
 
 -- Modes.
diff --git a/src/cdk.patch b/src/cdk.patch
index 0ccbb9ea..b9fc42b9 100644
--- a/src/cdk.patch
+++ b/src/cdk.patch
@@ -287,6 +287,27 @@ diff -r 9d0780ddcbab cdk_version.h
 +#endif
 +
 +#endif /* CDK_VERSION_H */
+diff -r ea979bb3ae11 cdkscreen.c
+--- a/cdkscreen.c	Wed Aug 13 13:55:58 2014 -0400
++++ b/cdkscreen.c	Wed Aug 13 16:14:54 2014 -0400
+@@ -180,17 +180,6 @@
+    ALL_SCREENS *item;
+    CDKSCREEN *screen = 0;
+ 
+-   /* initialization, for the first time */
+-   if (all_screens == 0)
+-   {
+-      /* Set up basic curses settings. */
+-#ifdef HAVE_SETLOCALE
+-      setlocale (LC_ALL, "");
+-#endif
+-      noecho ();
+-      cbreak ();
+-   }
+-
+    if ((item = typeMalloc (ALL_SCREENS)) != 0)
+    {
+       if ((screen = typeCalloc (CDKSCREEN)) != 0)
 diff -r 9d0780ddcbab entry.c
 --- a/entry.c	2013-06-16 09:12:32.000000000 -0400
 +++ b/entry.c	2013-12-17 16:52:52.969973100 -0500
diff --git a/src/textadept.c b/src/textadept.c
index 1cc906b8..0812db16 100644
--- a/src/textadept.c
+++ b/src/textadept.c
@@ -51,7 +51,7 @@
 #include "windowman.h"
 #include "cdk_int.h"
 #if !_WIN32
-#include "termkey.h"
+#include "termkey-internal.h"
 #endif
 #endif
 
@@ -151,7 +151,6 @@ static GtkEntryCompletion *command_entry_completion;
 // curses window.
 static struct WindowManager *wm;
 #if !_WIN32
-static struct termios term;
 TermKey *ta_tk; // global for CDK use
 #endif
 #define SS(view, msg, w, l) scintilla_send_message(view, msg, w, l)
@@ -423,9 +422,6 @@ static int lfind_focus(lua_State *L) {
   if (findbox) return 0; // already active
   wresize(scintilla_get_window(focused_view), LINES - 4, COLS);
   findbox = initCDKScreen(newwin(2, 0, LINES - 3, 0)), eraseCDKScreen(findbox);
-#if !_WIN32
-  tcsetattr(0, TCSANOW, &term);
-#endif
   int b_width = max(strlen(button_labels[0]), strlen(button_labels[1])) +
                 max(strlen(button_labels[2]), strlen(button_labels[3])) + 3;
   int o_width = max(strlen(option_labels[0]), strlen(option_labels[1])) +
@@ -583,9 +579,6 @@ static int lce_focus(lua_State *L) {
 #elif CURSES
   if (command_entry) return 0; // already active
   CDKSCREEN *screen = initCDKScreen(newwin(1, 0, LINES - 2, 0));
-#if !_WIN32
-  tcsetattr(0, TCSANOW, &term);
-#endif
   command_entry = newCDKEntry(screen, LEFT, TOP, NULL, NULL, A_NORMAL, '_',
                               vMIXED, 0, 0, 256, FALSE, FALSE);
   bindCDKObject(vENTRY, command_entry, KEY_TAB, c_keypress, NULL);
@@ -2396,9 +2389,8 @@ int main(int argc, char **argv) {
   gtk_init(&argc, &argv);
 #elif CURSES
 #if !_WIN32
-  struct termios oldterm;
-  tcgetattr(0, &oldterm); // save old terminal settings
-  ta_tk = termkey_new(0, TERMKEY_FLAG_NOTERMIOS);
+  ta_tk = termkey_new(0, 0);
+  ta_tk->c0[0x08].sym = TERMKEY_SYM_UNKNOWN; // prevent Backspace to ^H mapping
 #endif
   setlocale(LC_CTYPE, ""); // for displaying UTF-8 characters properly
   initscr(); // raw()/cbreak() and noecho() are taken care of in libtermkey
@@ -2477,12 +2469,10 @@ int main(int argc, char **argv) {
 
 #if !_WIN32
   stderr = freopen("/dev/null", "w", stderr); // redirect stderr
-  // Ignore some termios (from GNU Nano).
-  tcgetattr(0, &term);
-  term.c_iflag &= ~IEXTEN, term.c_iflag &= ~IXON;
-  term.c_oflag &= ~OPOST;
-  term.c_lflag &= ~ISIG;
-  tcsetattr(0, TCSANOW, &term);
+  // Prevent ^C from generating SIGINT. TERMKEY_FLAG_CTRLC is ineffective since
+  // initscr() overrides it.
+  struct termios term;
+  tcgetattr(0, &term), term.c_lflag &= ~ISIG, tcsetattr(0, TCSANOW, &term);
   // Set terminal resize handler.
   struct sigaction act;
   memset(&act, 0, sizeof(struct sigaction));
@@ -2557,7 +2547,6 @@ int main(int argc, char **argv) {
   endwin();
 #if !_WIN32
   termkey_destroy(ta_tk);
-  tcsetattr(0, TCSANOW, &oldterm); // restore old terminal settings
 #endif
 #endif
 
-- 
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