Custom Query (1030 matches)

WITH-STANDARD-IO-SYNTAX is supposed to bind implementation-defined printer control variables to values that produce "standard" read/print behavior. There's at least some argument that binding CCL:*PRINT-ABBREVIATE-QUOTE* to T (as WITH-STANDARD-IO-SYNTAX currently does in CCL) is undesirable: the abbreviated syntax is certainly part of what CLHS calls "standard syntax", but if part of the purpose of WITH-STANDARD-IO-SYNTAX is to suppress implementation-dependent behavior, WITH-STANDARD-IO-SYNTAX should probably bind it to NIL instead.

As per 22.1.3.5, 

    (write (quote (john (quote s) weight)) :pretty nil :readably nil)

should print

    (JOHN (QUOTE S) WEIGHT)

but instead it prints:

    (JOHN 'S WEIGHT)

[and similarly for :readtably t].


========================================================================
Implementation: Clozure Common Lisp Version 1.7-dev-r14788M-trunk  (LinuxX8664) on x86_64

Reading of: "(write (quote (john (quote s) weight)) :pretty nil :readably nil)"
signaled no error

Evaluation of: (WRITE '(JOHN 'S WEIGHT) :PRETTY NIL :READABLY NIL)
signaled no error
wrote nothing on *ERROR-OUTPUT*
wrote the following *STANDARD-OUTPUT* (lines excluded):
------------------------------------------------------------------------
(JOHN 'S WEIGHT)
------------------------------------------------------------------------
returned the following value:
--> (JOHN 'S WEIGHT)

========================================================================

While trying to use the trivial-shell system I ran into an error stating that the ccl:external-process-error-stream function was undefined. After verifying in your documentation that the function was supposed to exist, I looked in the source code and saw that, unlike the ccl:external-process-input-stream and ccl:external-process-output-stream functions, this one was only defined in a CCL built for a non-windows OS. This exclusion exists in both the 1.6 and 1.7 versions.

I manually defined the function using the exact definition from the source code and verified that it works as expected in my REPL on Windows so I am writing this missing function up as a bug.