Changeset f4b77f2 for src/Parser

Timestamp:

Sep 11, 2017, 5:09:29 PM (7 years ago)

Author:

Peter A. Buhr <pabuhr@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, deferred_resn, demangler, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, new-env, no_list, persistent-indexer, pthread-emulation, qualifiedEnum, resolv-new, with_gc

Children:

15697ff

Parents:

de9285f

Message:

fix rules for parsing floating-point literals

File:

• src/Parser/lex.ll (modified) (3 diffs)

src/Parser/lex.ll

@@ -10 +10 @@
  * Created On       : Sat Sep 22 08:58:10 2001
  * Last Modified By : Peter A. Buhr
- * Last Modified On : Sun Sep 10 11:15:37 2017
- * Update Count     : 617
+ * Last Modified On : Sun Sep 10 22:29:15 2017
+ * Update Count     : 620
  */
 
@@ -108 +108 @@
 
                                 // GCC: D (double) and iI (imaginary) suffixes, and DL (long double)
-floating_suffix_opt ("_"?(([fFdDlL]?[iI]?)|([iI][lLfFdD])|"DL"))?{user_suffix_opt}
+exponent "_"?[eE]"_"?[+-]?{decimal_digits}
+floating_suffix ([fFdDlL]?[iI]?)|([iI][lLfFdD])
+floating_suffix_opt ("_"?({floating_suffix}|"DL"))?{user_suffix_opt}
 decimal_digits ({decimal})|({decimal}({decimal}|"_")*{decimal})
-exponent "_"?[eE]"_"?[+-]?{decimal_digits}
 floating_decimal {decimal_digits}"."{exponent}?{floating_suffix_opt}
 floating_fraction "."{decimal_digits}{exponent}?{floating_suffix_opt}
@@ -116 +117 @@
 
 binary_exponent "_"?[pP]"_"?[+-]?{decimal_digits}
+hex_floating_suffix_opt ("_"?({floating_suffix}))?{user_suffix_opt}
 hex_floating_fraction ({hex_digits}?"."{hex_digits})|({hex_digits}".")
-hex_floating_constant {hex_prefix}(({hex_floating_fraction}{binary_exponent})|({hex_digits}{binary_exponent})){floating_suffix_opt}
+hex_floating_constant {hex_prefix}(({hex_floating_fraction}{binary_exponent})|({hex_digits}{binary_exponent})){hex_floating_suffix_opt}
 
                                 // character escape sequence, GCC: \e => esc character