10 files changed, 55 insertions, 26 deletions

diff --git a/comp/lucas-standen-NEA/code/execution/Makefile b/comp/lucas-standen-NEA/code/execution/Makefile
index 00c18b6..a22db25 100644
--- a/comp/lucas-standen-NEA/code/execution/Makefile
+++ b/comp/lucas-standen-NEA/code/execution/Makefile
@@ -1,8 +1,10 @@
-all: exec builtin
+all: exec builtin vars
 	$(info done execution!)
-exec: exec.c builtin
-	cc exec.c builtin.o ../tokenizer/tokenizer.o ../global/util.o -o exec -ggdb
+exec: exec.c builtin vars
+	cc exec.c builtin.o vars.o ../tokenizer/tokenizer.o ../global/util.o -o exec -ggdb
 builtin: builtin.c
 	cc builtin.c -c -o builtin.o -ggdb
+vars: vars.c
+	cc vars.c -c -o vars.o -ggdb
 clean:
 	rm -rf *.o exec
diff --git a/comp/lucas-standen-NEA/code/execution/builtin.c b/comp/lucas-standen-NEA/code/execution/builtin.c
index 12441cd..a2b67fb 100644
--- a/comp/lucas-standen-NEA/code/execution/builtin.c
+++ b/comp/lucas-standen-NEA/code/execution/builtin.c
@@ -1,6 +1,8 @@
 #include <stdlib.h>
 #include <stdio.h>
-#include "../global/types.h"
+
+#include "vars.h"
+
 #include "../global/util.h"
 
 #define MAXARGS 8
@@ -41,10 +43,18 @@ void *doCall(ast_node *node){
 			for (int i = 0; i < node->literalArgs[0]->arr->len; i++)
 				fputc(node->literalArgs[0]->arr->arr[i].ch->data, stdout);
 			break;
+
+		case LET:
+			newVar(node->literalArgs[0]->vdef, node->literalArgs[1]);
+			break;
 		
 		case EXIT:
-			int returnValue = (int)node->literalArgs[0]->i64->data;
-			exit(returnValue);
+			exit((int)node->literalArgs[0]->i64->data);
+			break;
+
+		default:
+			fprintf(stderr, "command not implemented");
+			exit(1);
 			break;
 	}
 }
diff --git a/comp/lucas-standen-NEA/code/execution/exec b/comp/lucas-standen-NEA/code/execution/exec
index 7fc4a06..f30273e 100755
--- a/comp/lucas-standen-NEA/code/execution/exec
+++ b/comp/lucas-standen-NEA/code/execution/exec
diff --git a/comp/lucas-standen-NEA/code/execution/exec.c b/comp/lucas-standen-NEA/code/execution/exec.c
index 8775526..73961ac 100644
--- a/comp/lucas-standen-NEA/code/execution/exec.c
+++ b/comp/lucas-standen-NEA/code/execution/exec.c
@@ -6,7 +6,7 @@
 #include "../tokenizer/tokenizer.h"
 
 int main(){
-	char *sample = "(write ['h','e','l','l','o','\n'])";
+	char *sample = "(let a:i64 5)";
 	ast_node *root = tokenize(sample);
 	doCall(root);	
 
diff --git a/comp/lucas-standen-NEA/code/execution/vars.c b/comp/lucas-standen-NEA/code/execution/vars.c
index db67c75..ebf4de5 100644
--- a/comp/lucas-standen-NEA/code/execution/vars.c
+++ b/comp/lucas-standen-NEA/code/execution/vars.c
@@ -3,20 +3,23 @@
 #include "../global/util.h"
 #include "../tokenizer/tokenizer.h"
 
-char *userVars[MAXVARS];
+var *userVars[MAXVARS];
 long varCount = 0;
 
-literal *newVar(char *name, literal *value){
-	userVars[varCount] = name;
-	varCount++;
-	literal *out = CheckedMalloc(sizeof(literal));
-	
+void newVar(Vdef *definiton, literal *value){
+	var *new = CheckedMalloc(sizeof(var));
+	new->type = definiton->type;
+	new->id = definiton->id;
+	new->value = value;
+	userVars[varCount] = new;
 }
 
-literal *toLiteral(char *str){
-	for (int i = 0; i < userVarCount; i++){
-		if (strcmp(str, userDefinedVars[i]) == 0){
-			
+literal *getVarCalled(char *name){
+	for (int i = 0; i < varCount; i++){
+		if (strcmp(userVars[i]->id, name)){
+			return userVars[i]->value;
 		}
 	}
+	printf("no such variable %s\n", name);
+	return NULL;
 }
diff --git a/comp/lucas-standen-NEA/code/execution/vars.h b/comp/lucas-standen-NEA/code/execution/vars.h
new file mode 100644
index 0000000..2e8ef99
--- /dev/null
+++ b/comp/lucas-standen-NEA/code/execution/vars.h
@@ -0,0 +1,4 @@
+#include "../global/types.h"
+
+void newVar(Vdef *definiton, literal *value);
+literal *getVarCalled(char *name);
diff --git a/comp/lucas-standen-NEA/code/global/types.h b/comp/lucas-standen-NEA/code/global/types.h
index 67c4a58..885c780 100644
--- a/comp/lucas-standen-NEA/code/global/types.h
+++ b/comp/lucas-standen-NEA/code/global/types.h
@@ -60,6 +60,12 @@ typedef union literal {
 	Vdef *vdef;
 } literal;
 
+typedef struct var {
+	literal *value;
+	types type;
+	char *id;
+} var;
+
 // built in functions
 typedef enum builtInFuncs {
 	// general
diff --git a/comp/lucas-standen-NEA/code/global/util.c b/comp/lucas-standen-NEA/code/global/util.c
index a29bbbc..5f41dbc 100644
--- a/comp/lucas-standen-NEA/code/global/util.c
+++ b/comp/lucas-standen-NEA/code/global/util.c
@@ -17,8 +17,8 @@ literal *giveType(char *tok);
 
 
 void Die(){
-	perror("zpy parser");
-	exit(errno);
+	fprintf(stderr, "error occured, bringing down the program\n");
+	exit(1);
 }
 
 void *CheckedMalloc(long size){
@@ -103,7 +103,10 @@ Vdef *isVdef(char *str){
 	if (strchr(str, ':') != NULL){
 		Vdef *out = CheckedMalloc(sizeof(Vdef));
 		char *type;
-		type = strtok(str, ":");	
+
+		out->id = strtok(str, ":");
+		
+		type = strtok(NULL, ":");	
 		if (strcmp(type, "i64") == 0) out->type = TI64;
 		else if (strcmp(type, "i32") == 0) out->type = TI32;
 		else if (strcmp(type, "u64") == 0) out->type = TU64;
@@ -117,7 +120,6 @@ Vdef *isVdef(char *str){
 			Die();
 		}
 
-		out->id = strtok(NULL, ":");
 		return out;
 	}
 	return NULL;
@@ -143,7 +145,6 @@ literal *giveType(char *tok){
 		out->vdef = vdef;
 	} else {
 		fprintf(stderr, "data %s could not be typed\n", tok);
-		errno = 22;
 		Die();
 	}
 	return out;
diff --git a/comp/lucas-standen-NEA/code/proto/parser/test b/comp/lucas-standen-NEA/code/proto/parser/test
index bc47f65..62ad779 100755
--- a/comp/lucas-standen-NEA/code/proto/parser/test
+++ b/comp/lucas-standen-NEA/code/proto/parser/test
diff --git a/comp/lucas-standen-NEA/code/tokenizer/tokenizer.c b/comp/lucas-standen-NEA/code/tokenizer/tokenizer.c
index c72270b..afd68fe 100644
--- a/comp/lucas-standen-NEA/code/tokenizer/tokenizer.c
+++ b/comp/lucas-standen-NEA/code/tokenizer/tokenizer.c
@@ -126,8 +126,11 @@ ast_node *tokenize(char *input){
 
 	expressFunction(function, node);
 
-	char *tok;
-	tok = strtok(strstr(exp, " ") + 1, " ");
+	char *tok, *saveptr, *expptr = exp;
+	
+	exp = strstr(exp, " ");
+	tok = strtok_r(exp, " ", &saveptr);
+
 	argCount = 0;
 	depth = 0;
 	do {
@@ -143,10 +146,10 @@ ast_node *tokenize(char *input){
 		
 		if (tok[0] == '(') depth++;
 		if (tok[strlen(tok)-1] == ')') depth--;
-		tok = strtok(NULL, " ");
+		tok = strtok_r(NULL, " ", &saveptr);
 	} while (tok != NULL);
 
-	free(exp);
+	free(expptr);
 
 	return node;
 }