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| author | Paweł Dybiec <pdybiec@stud.cs.uni.wroc.pl> | 2018-11-10 01:14:39 +0100 |
|---|---|---|
| committer | Paweł Dybiec <pdybiec@stud.cs.uni.wroc.pl> | 2018-11-10 01:14:39 +0100 |
| commit | 580dc4f693bad1ae0caa8809673f955f13aad4c2 (patch) | |
| tree | d1aa880ff0a02b4ec5107c616033ab178f29023c | |
| parent | Support multiple indexing (diff) | |
Add boolean literals
| -rw-r--r-- | source/mod_student/lexer.mll | 4 | ||||
| -rw-r--r-- | source/mod_student/parser.mly | 3 |
2 files changed, 4 insertions, 3 deletions
diff --git a/source/mod_student/lexer.mll b/source/mod_student/lexer.mll index 1d5f9f2..1803de5 100644 --- a/source/mod_student/lexer.mll +++ b/source/mod_student/lexer.mll @@ -119,13 +119,15 @@ let implode l = | "length" { LENGTH } | "int" { T_INT } | "bool" { T_BOOL } + | "true" { BOOL true } + | "false" { BOOL false } | "_" { UNDERSCORE } | identifier as id { IDENTIFIER id } | integer as i { INT (int_of_string i) } (* ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ----------------------------------------------------------------------------- *) - | " " {token lexbuf} + | " "|"\t" {token lexbuf} | _ { handleError (Lexing.lexeme_start_p lexbuf) (Lexing.lexeme lexbuf) } diff --git a/source/mod_student/parser.mly b/source/mod_student/parser.mly index c79181e..2665861 100644 --- a/source/mod_student/parser.mly +++ b/source/mod_student/parser.mly @@ -195,7 +195,7 @@ statement: {STMT_VarDecl { var=var;init=init } } | WHILE cond=expression body=statement { STMT_While {loc=mkLocation $startpos;cond=cond;body=body } } - | IF cond=expression then_branch=statement else_branch=option(preceded(ELSE,statement)) + | IF cond=expression then_branch=statement else_branch=option(preceded(ELSE,statement)) (*Menhir attempts to mimic ocamlyacc’s specification, that is, to resolve shift/reduce conflicts in favor of shifting*) { STMT_If {loc=mkLocation $startpos;cond=cond;then_branch=then_branch; else_branch=else_branch } } | head=option_var_decl COMMA tail=separated_nonempty_list(COMMA, option_var_decl) ASSIGN call=call @@ -207,7 +207,6 @@ call: | callee=identifier LPAREN arguments=separated_list(COMMA,expression) RPAREN { Call { tag=mkTag (); loc=mkLocation $startpos; callee=callee; arguments=arguments } } - (* TODO Add other statements *) lvalue: | id=identifier {LVALUE_Id {loc=mkLocation $startpos;id=id} } | sub=lvalue_index LSBRACKET index=expression RSBRACKET |