Remove reliance on linenoise

.gitmodules

@@ -1,3 +0,0 @@
-[submodule "third-party/linenoise"]
-	path = third-party/linenoise
-	url = git://github.com/antirez/linenoise.git

CMakeLists.txt

@@ -8,7 +8,6 @@ file(GLOB GBA_SRC ${CMAKE_SOURCE_DIR}/src/gba/*.c)
 file(GLOB UTIL_SRC ${CMAKE_SOURCE_DIR}/src/util/*.c)
 file(GLOB RENDERER_SRC ${CMAKE_SOURCE_DIR}/src/gba/renderers/video-software.c)
 file(GLOB DEBUGGER_SRC ${CMAKE_SOURCE_DIR}/src/debugger/*.c)
-file(GLOB THIRD_PARTY ${CMAKE_SOURCE_DIR}/third-party/linenoise/linenoise.c)
 include_directories(${CMAKE_SOURCE_DIR}/src/arm)
 include_directories(${CMAKE_SOURCE_DIR}/src/gba)
 include_directories(${CMAKE_SOURCE_DIR}/src/debugger)
@@ -33,5 +32,5 @@ else()
 endif()
 include_directories(${SDL_INCLUDE_DIR} ${OPENGL_INCLUDE_DIR})
 
-add_executable(${BINARY_NAME} ${ARM_SRC} ${GBA_SRC} ${DEBUGGER_SRC} ${RENDERER_SRC} ${UTIL_SRC} ${THIRD_PARTY} ${SDL_SRC} ${MAIN_SRC})
-target_link_libraries(${BINARY_NAME} m pthread ${SDL_LIBRARY} ${OPENGL_LIBRARY})
+add_executable(${BINARY_NAME} ${ARM_SRC} ${GBA_SRC} ${DEBUGGER_SRC} ${RENDERER_SRC} ${UTIL_SRC} ${SDL_SRC} ${MAIN_SRC})
+target_link_libraries(${BINARY_NAME} m pthread edit ${SDL_LIBRARY} ${OPENGL_LIBRARY})

src/debugger/debugger.c

@@ -10,7 +10,6 @@
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
-#include "linenoise.h"
 
 struct DebugVector {
 	struct DebugVector* next;
@@ -256,7 +255,7 @@ enum _DVParseState {
 };
 
 static struct DebugVector* _DVParse(struct ARMDebugger* debugger, const char* string) {
-	if (!string || !string[0]) {
+	if (!string || !string[0] || string[0] == '\n') {
 		return 0;
 	}
 
@@ -264,7 +263,7 @@ static struct DebugVector* _DVParse(struct ARMDebugger* debugger, const char* st
 	struct DebugVector dvTemp = { .type = INT_TYPE };
 	uint32_t current = 0;
 
-	while (string[0] && string[0] != ' ' && state != PARSE_ERROR) {
+	while (string[0] && string[0] != ' ' && string[0] != '\n' && state != PARSE_ERROR) {
 		char token = string[0];
 		++string;
 		switch (state) {
@@ -483,7 +482,7 @@ static void _DVFree(struct DebugVector* dv) {
 	}
 }
 
-static int _parse(struct ARMDebugger* debugger, const char* line) {
+static int _parse(struct ARMDebugger* debugger, const char* line, size_t count) {
 	char* firstSpace = strchr(line, ' ');
 	size_t cmdLength;
 	struct DebugVector* dv = 0;
@@ -496,7 +495,7 @@ static int _parse(struct ARMDebugger* debugger, const char* line) {
 			return 0;
 		}
 	} else {
-		cmdLength = strlen(line);
+		cmdLength = count;
 	}
 
 	int i;
@@ -516,27 +515,29 @@ static int _parse(struct ARMDebugger* debugger, const char* line) {
 	return 0;
 }
 
+static char* _prompt(EditLine* el) {
+	(void)(el);
+	return "> ";
+}
+
 static void _commandLine(struct ARMDebugger* debugger) {
-	char* line;
+	const char* line;
 	_printStatus(debugger, 0);
+	int count = 0;
+	HistEvent ev;
 	while (debugger->state == DEBUGGER_PAUSED) {
-		line = linenoise("> ");
+		line = el_gets(debugger->elstate, &count);
 		if (!line) {
 			debugger->state = DEBUGGER_EXITING;
 			return;
 		}
-		if (!line[0]) {
-			if (debugger->lastCommand) {
-				_parse(debugger, debugger->lastCommand);
+		if (line[0] == '\n') {
+			if (history(debugger->histate, &ev, H_FIRST) >= 0) {
+				_parse(debugger, ev.str, strlen(ev.str) - 1);
 			}
 		} else {
-			linenoiseHistoryAdd(line);
-			if (_parse(debugger, line)) {
-				char* oldLine = debugger->lastCommand;
-				debugger->lastCommand = line;
-				free(oldLine);
-			} else {
-				free(line);
+			if (_parse(debugger, line, count - 1)) {
+				history(debugger->histate, &ev, H_ENTER, line);
 			}
 		}
 	}
@@ -545,14 +546,27 @@ static void _commandLine(struct ARMDebugger* debugger) {
 void ARMDebuggerInit(struct ARMDebugger* debugger, struct ARMCore* cpu) {
 	debugger->cpu = cpu;
 	debugger->state = DEBUGGER_PAUSED;
-	debugger->lastCommand = 0;
 	debugger->breakpoints = 0;
+	// TODO: get argv[0]
+	debugger->elstate = el_init("gbac", stdin, stdout, stderr);
+	el_set(debugger->elstate, EL_PROMPT, _prompt);
+	el_set(debugger->elstate, EL_EDITOR, "emacs");
+	debugger->histate = history_init();
+	HistEvent ev;
+	history(debugger->histate, &ev, H_SETSIZE, 200);
+	el_set(debugger->elstate, EL_HIST, history, debugger->histate);
 	debugger->memoryShim.p = debugger;
 	debugger->memoryShim.watchpoints = 0;
 	_activeDebugger = debugger;
 	signal(SIGINT, _breakIntoDefault);
 }
 
+void ARMDebuggerDeinit(struct ARMDebugger* debugger) {
+	// TODO: actually call this
+	history_end(debugger->histate);
+	el_end(debugger->elstate);
+}
+
 void ARMDebuggerRun(struct ARMDebugger* debugger) {
 	while (debugger->state != DEBUGGER_EXITING) {
 		if (!debugger->breakpoints) {

src/debugger/debugger.h

@@ -1,6 +1,8 @@
 #ifndef DEBUGGER_H
 #define DEBUGGER_H
 
+#include <histedit.h>
+
 #include "arm.h"
 
 enum DebuggerState {
@@ -26,12 +28,15 @@ struct ARMDebugger {
 	enum DebuggerState state;
 	struct ARMCore* cpu;
 
-	char* lastCommand;
+	EditLine* elstate;
+	History* histate;
+
 	struct DebugBreakpoint* breakpoints;
 	struct DebugMemoryShim memoryShim;
 };
 
 void ARMDebuggerInit(struct ARMDebugger*, struct ARMCore*);
+void ARMDebuggerDeinit(struct ARMDebugger*);
 void ARMDebuggerRun(struct ARMDebugger*);
 void ARMDebuggerEnter(struct ARMDebugger*);
 

third-party/linenoise

@@ -1 +0,0 @@
-Subproject commit 27a3b4d5205a5fb3e2101128edd6653bd0c92189