Attempt to debug various faults

Makefile

@@ -11,16 +11,16 @@ webdice.js: js-api.c expression.o lex.yy.o parser.tab.o
 	$(CC) $^ $(CFLAGS) -o $@ $(LFLAGS)
 
 lex.yy.c lex.yy.h: lexer.l parser.tab.h expression.h
-	flex --header-file=lex.yy.h $<
+	flex --debug --header-file=lex.yy.h $<
 
 parser.tab.c parser.tab.h: parser.y expression.h
-	bison -d $<
+	bison --debug -d $<
 
 %.o: %.c
 	$(CC) $(CFLAGS) -c $<
 
 native-test: native-test.c lex.yy.c parser.tab.c expression.c
-	gcc -std=gnu99 -Wall -pedantic $^ -o $@ $(LFLAGS)
+	gcc -m32 -std=gnu99 -Wall -pedantic $^ -o $@ $(LFLAGS) -g
 
 .PHONY: clean
 clean:

js-api.c

@@ -20,21 +20,24 @@ int yyerror(void* scanner, void* lvalp, char* str){
 }
 
 void EMSCRIPTEN_KEEPALIVE webdice(char* str){
-	union expression* root;
+	union expression* root = NULL;
 	struct expression_result result;
 	int length;
+	char* in_block;
 	char* out_block;
 
-	console_print("A");
+	yydebug = 1;
+
+	in_block = (char*) malloc((2 + strlen(str)) * sizeof(char));
+	sprintf(in_block,"%s\n",str);
+
 
 	yyscan_t scanner;
-	console_print("B");
 	yylex_init(&scanner);
-	console_print("C");
+	yy_scan_string (in_block, scanner);
-	yy_scan_string (str, scanner);
-	console_print("D");
 
-	if(yyparse((void*) scanner, &root) == 0){
+	yyparse((void*) scanner, &root);
+	if(root != NULL){
 		result = resolve(root);
 		length = strlen(result.text) + 4 * ceill(log10l(result.max)) + 100;
 		out_block = (char*) malloc(length * sizeof(char));
@@ -46,5 +49,6 @@ void EMSCRIPTEN_KEEPALIVE webdice(char* str){
 	}else{
 		output_print("<p>Error!</p>");
 	}
+	free(in_block);
 	yylex_destroy(scanner);
 }

lexer.l

@@ -3,7 +3,6 @@
 #include <stdio.h>
 #include "expression.h"
 #include "parser.tab.h"
-#define _POSIX_C_SOURCE
 
 %}
 

native-test.c

@@ -32,7 +32,7 @@ void webdice(char* str){
 	yy_scan_string (str, scanner);
 	console_print("D");
 
-	if(yyparse((void*) scanner, &root) == 0){
+	if(yyparse((void*) scanner, &root) == 0 && root != NULL){
 		result = resolve(root);
 		length = strlen(result.text) + 4 * ceill(log10l(result.max)) + 100;
 		out_block = (char*) malloc(length * sizeof(char));
@@ -48,8 +48,13 @@ void webdice(char* str){
 }
 
 int main(){
-	webdice("cenas");
+
-	webdice("1d4");
+#ifdef YYDEBUG
-	webdice("5");
+	yydebug = 1;
+#endif
+
+	webdice("1d4\n");
+	webdice("cenas\n");
+	webdice("5\n");
 	return 0;
 }

parser.y

@@ -41,7 +41,7 @@ expression:	expression WEBDICE_TOKEN_ADD expression	{ $$ = webdice_add($1,$3); }
 	;
 
 lines:
-	|	lines WEBDICE_TOKEN_EOL	{ (*root) = NULL; }
+	|	lines WEBDICE_TOKEN_EOL	{}
 	|	lines expression WEBDICE_TOKEN_EOL	{ (*root) = $2; }
 	;