Print going into a loop is not OK, I suppose Marc fixes that.

Needing a switch for switching on Unicode is OK though. When that option is off, you could do your prints by serializing to UTF8 binary yourself and then writing it byte by byte to the console.

2016-06-26 13:21 GMT+08:00 Vijay Mathew <vijay.the.lisper@gmail.com>:

Thanks Adam, will try what you suggested. But I really don't understand why a special switch is required to properly print Unicode characters. Even if the user is unaware of this, 'print' going into a loop is bad behavior.

--Vijay


On Jun 26, 2016 8:26 AM, "Adam" <adam.mlmb@gmail.com> wrote:
You need to switch on unicode output for the output medium (gsc -t8) and maybe also specify the maximum unicode character number that the writer will accept to write. Please report back when you figured.

2016-06-26 10:34 GMT+08:00 Vijay Mathew <vijay.the.lisper@gmail.com>:
How can I make gambit to print a Unicode character's symbol (or glyph)?
For example, I want to display the Unicode infinity symbol ∞ (#\u221E).
Calling `(display #\u221E)` or `(print #\u221E)` throws the REPL into an infinite loop.
(This happens for most Unicode literals I tried, not just the infinity symbol :-))

       $ gsc
       Gambit v4.8.4

> (print #\u221E)
*** ERROR IN ##wr-ch -- Can't convert to C char-string
(write-char #\*** ERROR IN ##wr-ch -- Can't convert to C char-string
(write-char #\*** ERROR IN ##wr-ch -- Can't convert to C char-string
(write-char #\*** ERROR IN ##wr-ch -- Can't convert to C char-string
(write-char #\*** ERROR IN ##wr-ch -- Can't convert to C char-string

Thanks,

--- Vijay


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