How to parse block with with single markup element

[kulmam]

Hi 

I'm trying to parse below text but having trouble. Can someone help me out?

--+block1:

    select * from emp

    where 1=2

--+block2:

    select 1 from dept

    ddvggh

--+block3:

    set nocount on

    set nocount on;

    dfdfdf;

    dfdfd

    

    dfdfdf;

    dfdfdf;

Desired output

1. Use --+ .*? : as block separator
2. Get between --+ and : as name of the block
   
3. Get multiline text between block separator as script that belongs to previous block separator

What I got so far by modifying https://stackoverflow.com/questions/41355044/antlr4-parse-rule-to-match-open-close-brackets

lexer grammar multilexer;

CODE: 'code';
LCURLY: '--+' .*? ':' -> pushMode(CODE_0);
WS1: WS -> skip;
NL1: NL -> skip;

mode CODE_0;

CODE_0_LCURLY: '--+' .*? ':' -> type(OTHER), pushMode(CODE_N);
RCURLY: ( WS1 | NL1 )* (LCURLY | EOF) -> popMode;     // Close for LCURLY
CODE_0_OTHER: ~('-')+ -> type(OTHER);
CODE_0_TAG: '--+' .*? ':' -> type(TAG);

mode CODE_N;

CODE_N_LCURLY: LCURLY -> type(OTHER), pushMode(CODE_N);
CODE_N_RCURLY: ( WS1 | NL1 )* (LCURLY | EOF) -> type(OTHER), popMode;
OTHER: ~('-')+;
TAG: '--+' .*? ':';

fragment WS   : [ \t\f]+ ;
fragment NL   : '\r'? '\n' ;

parser grammar multiparser;
options { tokenVocab = multilexer ; }

skip_code: LCURLY OTHER* RCURLY;

Current output

Error

line 14:11 mismatched input '<EOF>' expecting {RCURLY, OTHER}

Problem

• error message
• need to get block name
• need to put select and set statement under each block

Thanks.