From ad40bb6762360183586b9e434b45606154b52aa1 Mon Sep 17 00:00:00 2001
From: Jan Breuer <jan.breuer@jaybee.cz>
Date: ćšć, 21 3æ 2013 19:49:34 +0800
Subject: [PATCH] Modify lexer according to IEEE 488.2
---
libscpi/src/scpi.g | 11 +++++++++--
1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/libscpi/src/scpi.g b/libscpi/src/scpi.g
index 3d44bcf..3a86647 100644
--- a/libscpi/src/scpi.g
+++ b/libscpi/src/scpi.g
@@ -39,7 +39,7 @@
| characterProgramData
| decimalNumericProgramData
| stringProgramData
-// | arbitraryBlockProgramData
+ | arbitraryBlockProgramData
| expressionProgramData
// | suffixProgramData
;
@@ -69,7 +69,12 @@
expressionProgramData
: PROGRAM_EXPRESSION
- ;
+ ;
+
+// support only nonzero prefix
+arbitraryBlockProgramData
+ : SHARP NONZERO_DIGIT NUMBER .*
+ ;
PROGRAM_MNEMONIC : ALPHA (ALPHA | DIGIT | UNDERSCORE)*;
HEXNUM : SHARP H HEXDIGIT*;
@@ -108,6 +113,8 @@
fragment ALPHA : ('a'..'z'|'A'..'Z');
fragment DIGIT : ('0'..'9');
+fragment NONZERO_DIGIT : ('1'..'9');
+
fragment HEXDIGIT : (DIGIT | 'a'..'f' | 'A'..'F');
fragment OCTDIGIT : ('0'..'7');
fragment BINDIGIT : ('0' | '1');
--
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