changed.

* Rename the slot to %READTABLE-CASE (from READTABLE-CASE).
* Add READTABLE-CASE and (SETF READTABLE-CASE) functions, as required.
* Check for the standard readtable in (SETF READTABLE-CASE).

error.lisp::
* Create two new conditions, one for modifying the readtable and one
  for the pprint dispatch table.

exports.lisp::
* Export the two new conditions.

pprint.lisp::
* Add check to SET-PPRINT-DISPATCH to disallow modifying the standard
  pprint dispatch table.
* Allow PPRINT-INIT to modify the standard pprint dispatch table.

print.lisp::
* In WITH-STANDARD-IO-SYNTAX, don't copy a new dispatch table; bind
  *print-pprint-dispatch* to the standard table.

reader.lisp::
* Add check to disallow modifying the standard readtable.
* Allow INIT-STD-LISP-READTABLE to modify the standard readtable.

entries with just the file path, removing the revision number, date,
author and state.  The actual information is now computed during
compilation and stored in the fasl itself.  (See ticket:48.)

attribute-table-limit and if the newvalue is #'read-token, we don't
actually add the entry to the character-macro-hash-table, because that
is the default value for the hash-table.  This helps to keep the
hash-table size small.

may get confused with source locations if the reader macros are
installed.

boot-2010-02-1 as the bootstrap file.  You should probably also use
the new -P option for build.sh to generate and update the po files
while building.

the second return value; it always used *READTABLE* instead of the
given readtable.

unicode-utf16-extfmt-2009-06-11.

of them.  Use hash tables instead of an alists for holding and
constructing the necessary objects.  This can vastly speed up the
reader in some cases.  But unfortunately it slows down the reader when
the circular structure is "small".

Some care has been taken not to make the reader slow when there are
now #= constructs.

This is based on a patch from Jared Davis.

reader.lisp:
o Add the new hash tables and initialize them appropriately.

sharpm.lisp:
o Update #= and ## macros to use the new hash tables.

The merge is from the tag "double-double-irrat-end".  The
double-double branch is now obsolete.

The code should build without double-double support (tested on sparc)
as well as build with double-double support (tested also on sparc).

constituent trait is alphabetic, not multiple-escape.  This fixes ansi
test SET-SYNTAX-FROM-CHAR-TRAIT-X-#\|.

fixes SET-SYNTAX-FROM-CHAR.SINGLE-ESCAPE.1,
SET-SYNTAX-FROM-CHAR.MULTIPLE-ESCAPE, SET-SYNTAX-FROM-CHAR.SHARP.1,
SET-SYNTAX-FROM-CHAR.SHARP.2.

o Fix up CHAR-CLASS, CHAR-CLASS2, and CHAR-CLASS3 to return the
  correct class.  Based on SBCL.
o SET-SYNTAX-FROM-CHAR shouldn't set the attribute from the secondary
  attribute. (I think.)

entire dispatch table of reader macro functions if the from-char is a
dispatching macro character.  Make it so.

converted to an internal number, an error of type reader-error is
signaled."

So, disable underflow traps, convert the number.  If the resulting
float is zero, but the number was not, signal a reader-error.

a list.

o Remove some unused code.

example 1/0.  See CLHS 2.3.1.1.

non-NIL object.

Fixes the MAKE-DISPATCH-MACRO-CHARACTER ansi-tests.

characters as specified by CLHS 2.1.4.2.

This fixes most of the set-syntax-from-char-trait-x-<foo> tests in the
ansi-tests.

displaced string.

From ansi-tests, read-from-string tests.

read-preserving-whitespace, read-delimited-list, and read-from-string
all return a primary value of nil.  Make it so.  We were returning a
list of NILs previously.

to be T.  Make it so.

Bug reported by Bruno Haible, cmucl-imp, 2004-10-22.

faster bignum reader.  Contributed by Mark Wooding on cmucl-imp, May
24, 2004.

simple-streams!

     (float -54965272/1000000000000000000)

  was printing as -5.496527e-11 but should be -5.4965272e-11

o Fix the float reader to read correctly, without roundoff:

  4.0058643e+8 was incorrectly read as 12518325, 1
  (integer-decode-float results).  It should be 12518326,1.

o Fix the float reader to read floats correctly with unusual values of
  *read-base*:

    (let ((*read-base* 2))
      (read-from-string "-4.3e+7"))

  used to return a symbol instead of a float.

This changes ported from SBCL.

behavior back to the old way where the parse is terminated as soon as
possible, treating trailing whitespace as terminating characters.

	(require :gray-streams)

	(defclass my-in-stream (ext:fundamental-character-input-stream)
	  ((last-char :initarg :last-char)))

	(let ((string " a ")
	      (i 0))
	  (defmethod ext:stream-read-char ((s my-in-stream))
	    (with-input-from-string (s "b") (read s))
	    (with-slots (last-char) s
	      (cond (last-char (prog1 last-char (setf last-char nil)))
		     (t (prog1 (aref string i)
			  (setq i (mod (1+ i) (length string)))))))))

	(defmethod ext:stream-unread-char ((s my-in-stream) char)
	  (setf (slot-value s 'last-char) char)
	  nil)

	(setq x (make-instance 'my-in-stream :last-char nil))
	(read x)
	 => b, instead of a

	* src/code/reader.lisp: Use a new read buffer for each call to
	read or read-preserving-whitespace, instead of using one global
	buffer.  From Helmut Eller.

	Found by Paul Dietz.

	* src/code/reader.lisp (parse-integer): Rewritten.

compiler notification function.

Non-simple-streams-related changes:

* Stop commands which go through invoke-command-interactive from
  affecting the history variables.

* Fix some typos in comments

* When the GC closes a lost stream, revert to original contents

* Replace #+nil with #+(or) in unix*.lisp
  [NIL is a potentially valid feature name]


Simple-streams-related changes:

* Teach reader to handle simple-streams

* Add missing package prefixes in OPEN

* Add unix:unix-msync for force-output on mmapped files

* Add placeholder documentation

* Numerous changes in simple-streams implementation

* Add "external-formats" directory for external formats


Note: :BIG-ENDIAN or :LITTLE-ENDIAN should be put on *features*

	* src/code/package.lisp (relative-package-name-to-package): Handle
	the case of an empty name.

	Found by Paul Dietz.

	* src/bootfiles/18e/boot13.lisp: New file.

	* src/code/reader.lisp (read-token) <RETURN-SYMBOL>: If the
	package name is "", use *keyword-package*.

   - an extra optional argument to COMPILER-NOTIFICATION makes it
     possible to pass text describing the error/note to
     *COMPILER-NOTIFICATION-FUNCTION*.

   - functions for *COMPILER-NOTIFICATION-FUNCTION* have an extra
     second argument which describes the error/note

   - modify the eval-server functionality in Hemlock in consequence

This backwards-incompatible change makes the
*COMPILER-NOTIFICATION-FUNCTION* facility considerably more useful,
since the description of the error (which was previously not passed to
the notification-function) is very useful when reporting an error.


Compile-time effect of DEFCONSTANT: instead of discarding the
documentation string, add it to the info database.

The attached patch contains mostly trivial changes, including a few
spelling corrections, plus changes to the types of condition raised in
various cases. The only significant change, I believe, is

  - MAKE-DISPATCH-MACRO-CHARACTER no longer raises an error if the
    character already was defined to be a macro character; it
    overrides the previous definition (as per a suggestion from Drew
    McDermott on cmucl-help, dated 2002-09-22).