| [#386] | project: specification | priority: low | category: feature | |
|---|---|---|---|---|
| submitter | assigned to | status | date submitted | |
| Philippe | Martin | open | 2004-12-13 18:40:28.0 | |
| subject | Identifiers can't contain the character ` | |||
| code | ||||
| what happened | With the notation `stringLit` it is possible to form identifiers containing any character excepted `. If it is u\ sed as is, it terminates the identifier and escaped with \ it isn't recognised as an escapable character. |
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| what expected | It should be possible to insert ` in identifiers. | |||
| [back to overview] | ||||
| Philippe edited on 2004-12-13 18:41:52.0 |
| Changed project to specification. |
| Burak edited on 2004-12-16 15:04:22.0 |
|
We could specify \x = x for all characters except n,t,b,r,\.
Meanwhile I added a tentative case \` = ` to the scanner. |
| Philippe edited on 2004-12-16 17:03:42.0 |
Don't forget that the definition of stringLit
is as in Java and in java, the expression
"\`" represents the string containing the two
characters '\\' and '`'. Therefore, you can't change the
meaning of \` to designate the character '`',
at least not within stringLit. Maybe, we could
use the following definition for id:
id ::= ...
| ``' stringLit2 ``'
stringLit2 ::= "like stringLit + escape for character '`'"
stringLit ::= "as in Java"
|