Forum Discussion
Walter_WorkAcct
Altostratus
AltostratusAssistance with Concatenation
I am trying to use the following code to convert html links to those with PDFs as the target. The issue I have is with concatenation and the correct syntax. The code below gives a trailing close bracket on the URL:
HTTP::respond 301 Location [concat "https://[HTTP::host]/archive"[string map -nocase {".html" ".pdf"} [HTTP::uri]]]
You don't really need to use the concat command here, you can just order your strings inline like this:
HTTP::respond 301 Location "https://[HTTP::host]/archive/[string map -nocase {.html .pdf} [HTTP::uri]]"You can also test this Tcl syntax with placeholders in the tcl shell:
% set host www.example.com www.example.com % set uri1 matching-uri.html matching-uri.html % set uri2 unmatching-uri.htm unmatching-uri.htm % set uri3 unmatching-uri.pdf unmatching-uri.pdf % puts “https://$host/archive/[string map -nocase {.html .pdf} $uri1]” “https://www.example.com/archive/matching-uri.pdf” % puts “https://$host/archive/[string map -nocase {.html .pdf} $uri2]” “https://www.example.com/archive/unmatching-uri.htm” % puts “https://$host/archive/[string map -nocase {.html .pdf} $uri3]” “https://www.example.com/archive/unmatching-uri.pdf”
- JRahm
Admin
You don't really need to use the concat command here, you can just order your strings inline like this:
HTTP::respond 301 Location "https://[HTTP::host]/archive/[string map -nocase {.html .pdf} [HTTP::uri]]"You can also test this Tcl syntax with placeholders in the tcl shell:
% set host www.example.com www.example.com % set uri1 matching-uri.html matching-uri.html % set uri2 unmatching-uri.htm unmatching-uri.htm % set uri3 unmatching-uri.pdf unmatching-uri.pdf % puts “https://$host/archive/[string map -nocase {.html .pdf} $uri1]” “https://www.example.com/archive/matching-uri.pdf” % puts “https://$host/archive/[string map -nocase {.html .pdf} $uri2]” “https://www.example.com/archive/unmatching-uri.htm” % puts “https://$host/archive/[string map -nocase {.html .pdf} $uri3]” “https://www.example.com/archive/unmatching-uri.pdf”