Hi Fred,
I believe you simply need to create the sequence and insert it into the
other text as appropriate, eg:
ESCSEQ←(⎕UCS 27),'[0;35;48m' ⍝ RED foreground
'Hello',ESCSEQ,'World'
HelloWorld
Note that ⎕UCS is more portable than ⎕AV or ⎕AF.
/// Jürgen
On 02/14/2014 10:04 PM, Frederick H. Pitts wrote:
Gentle people,
Is there a way for a Gnu APL program to send ANSI escape sequences to
the terminal in which the iterpreter is running?
If not, I wish to propose the following: The ⍞ handling be extended by
implementing an alternative mode where only the content of the last
assign to ⍞ be retained in quote-quad-prompt instead of appending the
content of all consecutive assigns up to the point ⍞ is referenced. In
the alternative mode quote-quad-prompt should be emptied when ⍞ is
referenced, just like it is currently. The alternative mode could be
activated by setting a boolean control flag (e.g., ⎕QQ ← 1 or maybe
adding another element to ⎕FC). As the ⍞ handling currently works,
assigning a ANSI escape sequence to ⍞ produces the desired result on the
screen, but as soon as one references ⍞ (even after assigning a
character vector not containing escape sequences) garbage appears in the
user's response.
Please find attached ANSI_TEST.apl.gz. The file demonstrates the above
issue.
If there is a way for Gnu APL to send escape sequences to its terminal,
please let me know and I apologize for wasting your time.
Regards
Fred
Retired Chemical Engineer
