Ticket UUID: | 536838 | |||
Title: | [subst] doc clarification | |||
Type: | Bug | Version: | obsolete: 8.4a5 | |
Submitter: | dgp | Created on: | 2002-03-29 18:39:25 | |
Subsystem: | 18. Commands M-Z | Assigned To: | dgp | |
Priority: | 5 Medium | Severity: | ||
Status: | Closed | Last Modified: | 2002-04-18 23:31:54 | |
Resolution: | Fixed | Closed By: | dgp | |
Closed on: | 2002-04-18 16:31:54 | |||
Description: |
It should be noted that the -no* options to [subst] only influence the "top level" of substitution. Even with -novar, variable substitutions do take place with command substitutions, and even with -nocommands, command substitutions do take place within variable substitutions (array indices). % set a 1 1 % subst -novar {$a [string equal $a 1]} $a 1 % proc b {} {return c} % array set foo {c c b b [b] tricky} % subst -nocommands {[b]$foo([b])} [b]c | |||
User Comments: |
dgp added on 2002-04-18 23:31:54:
Logged In: YES user_id=80530 committed to HEAD (8.4a5) dkf added on 2002-04-18 20:28:16: Logged In: YES user_id=79902 Documentation change looks good to me; assigning back to you for application. (I was actually interested in what was meant by the handling of TCL_RETURN, though I'd like to note that I've always found it easier to pass that sort of thing using the ::errorCode variable.) dgp added on 2002-04-06 04:19:20: File Added - 20637: sdoc.patch Logged In: YES user_id=80530 Here's a patch. dkf added on 2002-04-05 15:46:41: Logged In: YES user_id=79902 Care to submit a detailed description of what you're after? dgp added on 2002-03-30 02:28:10: Logged In: YES user_id=80530 Actually, [return] acts much like [continue]. Said another way, [continue] is equivalent to [return ""]. Extended return codes too. dgp added on 2002-03-30 01:57:46: Logged In: YES user_id=80530 It should also be noted that [subst] can only have a return code of TCL_OK or TCL_ERROR. If a substitution yields some other return code, notably TCL_RETURN, but other extended return codes as well, they are effectively converted to TCL_OK. I seem to recall Brent Welch wishing for a means to return extended return codes from [subst] for use in web page template processing so that something like subst { # lots of template stuff with a return -code 404 "Page not found" # blah } could be used. |
Attachments:
- sdoc.patch [download] added by dgp on 2002-04-06 04:19:20. [details]