| Ticket UUID: | 1836519 | |||
| Title: | Make two-arg switch safe and fast | |||
| Type: | Patch | Version: | None | |
| Submitter: | pspjuth | Created on: | 2007-11-22 15:21:07 | |
| Subsystem: | 18. Commands M-Z | Assigned To: | dkf | |
| Priority: | 5 Medium | Severity: | ||
| Status: | Closed | Last Modified: | 2007-12-03 20:47:53 | |
| Resolution: | Accepted | Closed By: | dkf | |
| Closed on: | 2007-12-03 13:47:53 | |||
| Description: |
When switch gets two arguments they cannot
legally be options, yet they are scanned
for options leading to that the simple way
of coding:
switch $a {
xx yy
}
is not as safe as one would hope when $a
happens to begin with "-".
Not parsing for options where they cannot
legally be are common in Tcl commands, e.g.
lsort and lsearch does this.
This patch makes the most straightforward
switch usage also be the safest and fastest.
| |||
| User Comments: |
dkf added on 2007-12-03 20:47:53:
Logged In: YES user_id=79902 Originator: NO Implemented, though in a slightly different way. pspjuth added on 2007-11-22 22:21:08: File Added - 255442: switch.patch | |||
Attachments:
- switch.patch [download] added by pspjuth on 2007-11-22 22:21:07. [details]