Fixed a bunch of quoting errors + fixed a potential crash with symbol files

Author: RPGHacker

src/asar/interface-cli.cpp

@@ -465,9 +465,17 @@ int main(int argc, char * argv[])
 			if (!symfilename) symfilename = get_base_name(romname)+".sym";
 			string contents = create_symbols_file(symbols, romCrc);
 			FILE * symfile = fopen(symfilename, "wt");
-			fputs(contents, symfile);
-			fclose(symfile);
-
+			if (!symfile)
+			{
+				puts(STR"Failed to create symbols file: \"" + symfilename + "\".");
+				pause(err);
+				return 1;
+			}
+			else
+			{
+				fputs(contents, symfile);
+				fclose(symfile);
+			}
 		}
 		reseteverything();
 	}

src/asar/libstr.cpp

@@ -156,7 +156,7 @@ bool readfile(const char * fname, const char * basepath, char ** data, int * len
 	return true;
 }
 
-#define dequote(var, next, error) if (var=='"') do { next; while (var!='"') { if (!var) error; next; } next; } while(0); else if (var=='\'') do { next; if (!var) error; next; if(var != '\'') error; next; } while(0)
+#define dequote(var, next, error) if (var=='"') do { next; while (var!='"' && var != '\0') { if (!var) error; next; }	if (var == '\0') error;	next; } while(0); else if (var=='\'') do { next; if (!var) error; /* ''' special case hack */ if (var=='\'') { next; if (var!='\'') error; next; } else { next; while (var!='\'' && var != '\0') { if (!var) error; next; } if (var == '\0') error; next; } } while(0)
 #define skippar(var, next, error) dequote(var, next, error); else if (var=='(') { int par=1; next; while (par) { dequote(var, next, error); else { \
 				if (var=='(') par++; if (var==')') par--; if (!var) error; next; } } } else if (var==')') error