Basic bindkey functionality

include/linenoise.h

@@ -44,6 +44,8 @@
 extern "C" {
 #endif
 
+typedef void (lineNoiseBindkeyFunction)(void);
+
 typedef struct linenoiseCompletions linenoiseCompletions;
 
 typedef void(linenoiseCompletionCallback)(const char*, linenoiseCompletions*);
@@ -61,6 +63,8 @@ void linenoiseHistoryFree(void);
 void linenoiseClearScreen(void);
 void linenoiseSetMultiLine(int ml);
 void linenoisePrintKeyCodes(void);
+int linenoiseBindkeyAdd(int key, lineNoiseBindkeyFunction *fn);
+int linenoiseBindkeyRemove(int key);
 /* the following is extension to the original linenoise API */
 int linenoiseInstallWindowChangeHandler(void);
 

src/linenoise.cpp

@@ -121,10 +121,12 @@
 
 #include <string>
 #include <vector>
+#include <unordered_map>
 #include <memory>
 
 using std::string;
 using std::vector;
+using std::unordered_map;
 using std::unique_ptr;
 using namespace linenoise_ng;
 
@@ -913,6 +915,7 @@ static const int PAGE_DOWN_KEY = 0x11200000;
 
 static const char* unsupported_term[] = {"dumb", "cons25", "emacs", NULL};
 static linenoiseCompletionCallback* completionCallback = NULL;
+static unordered_map<int, lineNoiseBindkeyFunction *> bindKeyFunctions;
 
 #ifdef _WIN32
 static HANDLE console_in, console_out;
@@ -1766,6 +1769,7 @@ static char32_t linenoiseReadChar(void) {
  } else if (rec.Event.KeyEvent.uChar.UnicodeChar ==
  ctrlChar('[')) { // ESC, set flag for later
  escSeen = true;
+ return modifierKeys | rec.Event.KeyEvent.uChar.UnicodeChar;
  continue;
  } else {
  // we got a real character, return it
@@ -1875,6 +1879,10 @@ static int cleanupCtrl(int c) {
  c = c & ~CTRL;
  }
  }
+ auto found = bindKeyFunctions.find(c);
+ if (found != bindKeyFunctions.end()){
+ found->second();
+ }
  return c;
 }
 
@@ -3364,3 +3372,23 @@ int linenoiseInstallWindowChangeHandler(void) {
 #endif
  return 0;
 }
+
+int linenoiseBindkeyAdd(int key, lineNoiseBindkeyFunction *fn)
+{ 
+ if (bindKeyFunctions.find(key) != bindKeyFunctions.end()){
+ // the key is already bound
+ return -1;
+ }
+ bindKeyFunctions.insert(std::make_pair(key, fn));
+ return 0; 
+}
+
+int linenoiseBindkeyRemove(int key)
+{
+ if (bindKeyFunctions.find(key) == bindKeyFunctions.end()){
+ // Key is not bound
+ return -1;
+ }
+ bindKeyFunctions.erase(key);
+ return 0;
+}