Re: [Bug-apl] quad-PW and text

[Juergen Sauermann]

Hi David,

actually ⎕PW works quite differently than its output suggests. Just resetting
the print position after \n works for simple text vectors but not for text matrices,
mixed values or nested values.

My proposal would rather be to use FILE_IO[22] (aka printf()) in your use case:

      (⊂"hello world\nnext line\n") FILE_IO[22] 1
hello world
next line
22

I could also add a "boxing" function to dyadic ⎕CR or to FILE_IO that converts
strings containing \n to nested vectors of strings. I believe that the traditional
APL format of text matrices is less suitable for longer texts and that nested vectors
of strings should be used for that.

/// Jürgen


On 05/25/2014 03:43 AM, David B. Lamkins wrote:

Enhancement request: Can quad-PW be made aware of newlines?

Use case: I'd like to dump a text file to the screen using FILEIO[26],
which (for a text file) returns a blob of text containing embedded
newlines. Emitting a newline to the session display does not reset the
print position. The session adds an additional APL wrap (newline plus
indent) every quad-PW characters even though the newlines in the text
keep the display well withing the quad-PW limits.