might be better to do do first

parser/parser.c

@@ -422,7 +422,9 @@ enum SYNTAX_ERROR cmd(struct Parser *parser) {
 
 enum SYNTAX_ERROR cmdAtrib(struct Parser *parser) {
   parser->token = lexerGetNextChar(parser->fd, parser->lineCount);
-  if (!(parser->token.category == SIGN && (parser->token.signCode == OPEN_BRACK || parser->token.signCode == ASSIGN))) {
+  if (!(parser->token.category == SIGN &&
+        (parser->token.signCode == OPEN_BRACK ||
+         parser->token.signCode == ASSIGN))) {
     return NO_ATRIB_VALID_TOKEN_AFTER_ID;
   }
 
@@ -433,6 +435,16 @@ enum SYNTAX_ERROR cmdAtrib(struct Parser *parser) {
     }
   }
 
+  // arrayAtrib
+  while (parser->token.category == SIGN &&
+         parser->token.signCode == OPEN_BRACK) {
+    parser->token = lexerGetNextChar(parser->fd, parser->lineCount);
+    enum SYNTAX_ERROR error = expr(parser);
+    if (error != NO_ERROR) {
+      return error;
+    }
+  }
+
   return NO_ERROR;
 }
 

parser/syntax_error.c

@@ -2,7 +2,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 
-#define ERROR_QTY 90
+#define ERROR_QTY 91
 
 // ANSI escape codes
 #define RESET "\033[0m"
@@ -131,6 +131,7 @@ void printSyntaxError(enum SYNTAX_ERROR error, int *lineCount) {
       {NO_ATRIB_EXPR, "No expression assigned to expression assign"},
       {NO_ATRIB_VALID_TOKEN_AFTER_ID,
        "No valid token after identifier for assignment"},
+      {NO_ATRIB_BRACKET_CLOSE, "Expected bracket closing at array assignment"},
       // expr
       {NO_EXPR_EXPR_SIMP, "No simple expression for expression"},
       {NO_EXPR_EXPR_SIMP_AFTER_OP_REL, "No simple expression after operation"},

parser/syntax_error.h

@@ -96,6 +96,7 @@ enum SYNTAX_ERROR {
   NO_ATRIB_ASSIGN,
   NO_ATRIB_EXPR,
   NO_ATRIB_VALID_TOKEN_AFTER_ID,
+  NO_ATRIB_BRACKET_CLOSE,
   // expr
   NO_EXPR_EXPR_SIMP,
   NO_EXPR_EXPR_SIMP_AFTER_OP_REL,

test/parser_integration_tests.c

@@ -362,3 +362,11 @@ void atribAssignedToABadExprAStringcon() {
   enum SYNTAX_ERROR error = setupError("def potassio(int i) i = $");
   assert(error == NO_FACTOR_VALID_START_SYMBOL);
 }
+
+// TODO: 
+//
+// atrib with bad unclosed paren
+/*void atribBadClosedParen() {*/
+/*  enum SYNTAX_ERROR error = setupError("def oxigenio(int i) id[8[");*/
+/*  assert(error == NO_ATRIB_BRACKET_CLOSE);*/
+/*}*/

test/parser_integration_tests.h

@@ -76,6 +76,7 @@ void doButNoParenOpen();
 
 void atribNoValidAfterId();
 void atribAssignedToABadExprAStringcon();
+void atribBadClosedParen();
 
 // void doIdprocExprExprSimpTermoFatorNoValidTokenAfterId();
 

test/test.c

@@ -93,6 +93,7 @@ int main(void) {
 
   atribNoValidAfterId();
   atribAssignedToABadExprAStringcon();
+  // atribBadClosedParen();
 
   printf("--- Parser integration tests passed\n");