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Check-in Number:
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1403 | |
| Date: |
2001-Dec-04 14:37:55 (local)
2001-Dec-04 13:37:55 (UTC) |
| User: | simons |
| Branch: | |
| Comment: |
Updated the BNF grammar for the arithmetik parser. |
| Tickets: |
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| Inspections: |
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| Files: |
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ossp-pkg/var/var.pod 1.9 -> 1.10
--- var.pod 2001/12/03 10:51:27 1.9
+++ var.pod 2001/12/04 13:37:55 1.10
@@ -618,7 +618,7 @@
variable : '$' (name|expression)
- expression : START-DELIM (name|variable)+ (':' command)* END-DELIM
+ expression : START-DELIM (name|variable)+ (START-INDEX num-exp END-INDEX)? (':' command)* END-DELIM
name : (VARNAME)+
@@ -633,10 +633,23 @@
| 'l'
| 'u'
+ num-exp : operand
+ | operand ('+'|'-'|'*'|'/'|'%') num-exp
+
+ operand : ('+'|'-')? NUMBER
+ | CURR-INDEX
+ | '(' num-exp ')'
+
START-DELIM: '{'
END-DELIM : '}'
+ START-INDEX: '['
+
+ END-INDEX : ']'
+
+ CURR-INDEX : '#'
+
VARNAME : '[a-zA-Z0-9_]+'
NUMBER : '[0-9]+'
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