l4arg: 加入 l4arg_toargv_free，用於釋放 l4arg_toargv 配置的記憶體空間

l4arg: 初次完成 l4qarg 部份，尚未測試

4 files changed, 65 insertions, 1 deletions

diff --git a/l4arg/Makefile b/l4arg/Makefile
index ac57e9c..8c23687 100644
--- a/l4arg/Makefile
+++ b/l4arg/Makefile
@@ -2,7 +2,7 @@ CC=cc
 AR=ar
 RM=rm
 CFLAGS=-Wall -g -I. -I../l4darr
-OBJ=toargv.o
+OBJ=toargv.o qarg.o
 LIBFILE=libl4arg.a
 
 .PHONY: all clean
diff --git a/l4arg/l4arg.h b/l4arg/l4arg.h
index 8a70376..b4da062 100644
--- a/l4arg/l4arg.h
+++ b/l4arg/l4arg.h
@@ -6,6 +6,7 @@ extern "C" {
 #endif
 
 char** l4arg_toargv(const char*, const char*, const char*, const char*);
+void l4arg_toargv_free(char**);
 
 typedef struct l4lib_qarg {
 	char* arg_name;
diff --git a/l4arg/qarg.c b/l4arg/qarg.c
new file mode 100644
index 0000000..aab818f
--- /dev/null
+++ b/l4arg/qarg.c
@@ -0,0 +1,54 @@
+#include <stdlib.h>
+#include <string.h>
+#include <l4arg.h>
+
+/* 為什麼叫做 qarg 呢？因為這是用來解析很像 QEMU 命令列參數的參數 */
+
+L4QARG* l4qarg_parse(const char* str){
+	char** pargv = l4arg_toargv(str, ",", "\"\'", "\\");
+	if(pargv == NULL){
+		return NULL;
+	}
+	int i, allc;
+	L4QARG* qargarr;
+	char* pos;
+	for(i=0; pargv[i]!=NULL; i++);
+	allc = i + 1;
+	qargarr = (L4QARG*) malloc(sizeof(L4QARG*) * allc);
+	if(qargarr == NULL){
+		l4arg_toargv_free(pargv);
+		return NULL;
+	}
+	for(i=0; pargv[i]!=NULL; i++){
+		pos = strchr(pargv[i], '=');
+		if(pos == NULL){
+			qargarr[i].arg_name = pargv[i];
+			qargarr[i].arg_value = NULL;
+		}else{
+			pos = '\0';
+			qargarr[i].arg_name = pos;
+			pos++;
+			qargarr[i].arg_value = (char*) malloc(strlen(pos)+1);
+			if(qargarr[i].arg_value == NULL){
+				l4arg_toargv_free(pargv);
+				return NULL;
+			}
+			strcpy(qargarr[i].arg_value, pos);
+		}
+	}
+	free(pargv);
+	qargarr[i].arg_name = NULL;
+	qargarr[i].arg_value = NULL;
+	return qargarr;
+}
+
+void l4qarg_free(L4QARG* qarg){
+	int i;
+	for(i=0; !(qarg[i].arg_name == NULL && qarg[i].arg_value == NULL); i++){
+		free(qarg[i].arg_name);
+		if(qarg[i].arg_value != NULL){
+			free(qarg[i].arg_value);
+		}
+	}
+	free(qarg);
+}
diff --git a/l4arg/toargv.c b/l4arg/toargv.c
index 35a9ae8..4b507b0 100644
--- a/l4arg/toargv.c
+++ b/l4arg/toargv.c
@@ -1,4 +1,5 @@
 #include <string.h>
+#include <stdlib.h>
 #include <l4arg.h>
 #include <l4darr.h>
 
@@ -89,3 +90,11 @@ char** l4arg_toargv(const char* str,
 	rval = (char**)l4da_drop_struct(parr);
 	return rval;
 }
+
+void l4arg_toargv_free(char** pargv){
+	int i;
+	for(i=0; pargv[i]!=NULL; i++){
+		free(pargv[i]);
+	}
+	free(pargv);
+}