e59066debe
Bytecode changes in two small ways to help the validator: * a cross-module variable reference preserves the compiler's annotation on whether the reference is constant, fixed, or other * lifted procedures now appear in the module body just before the definitions that use them, instead of at the beginning of the module body
1976 lines
84 KiB
Plaintext
1976 lines
84 KiB
Plaintext
Version 5.3.1.2
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compiler/zo-structs: added a constantness field to module-variable
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Version 5.3.1.1
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Added arguments to impersonate-prompt-tag and chaperone-prompt-tag
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to support interposition on non-composable continuation results
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Version 5.3.1, October 2012
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Changed make-log-receiver to accept a logger name as an
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event filter
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Addded define-logger
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Changed -W, -L, PLTSTDERR, and PLTSYSLOG to support log
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filters of the form "<level> <name>=<level> ..."
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Changed log-error, etc., to support format mode
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Added racket/format, which is re-exported by racket
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Added #:break and #:final clauses to for forms
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Added exn:break:hang-up and exn:break:terminate, added
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extra argument to break-thread and place-break, and
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redirect SIGTERM and SIGHUP as breaks
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Add #:fill option to for/vector, for*/vector, for/flvector,
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for*/flvector, for/fxvector, and for*/fxvector
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Added PLTCOMPILEDROOTS and --compiled/-R command-line flag
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Added reroot-path
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Changed a thread's initial prompt to use the default handler
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(instead of accepting and ignoring abort arguments)
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ffi/unsafe: added cpointer-gcable?
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racket/class: added dynamic-get-field and dynamic-set-field!
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racket/set: added set-first and set-rest, sets are streams
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racket/require-transformer: an import's module path can be syntax
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scribble/base: add items/c
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scribble/decode: add spliceof
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syntax/for-body: added
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Version 5.3, August 2012
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Added submodules, including module*
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Changed the format of error messages
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Added raise-argument-error, raise-result-error,
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raise-arguments-error, raise-range-error
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Added impersonate-continuation-mark-key,
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chaperone-continuation-mark-key, make-continuation-mark-key,
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continuation-mark-key?, impersonate-prompt-tag, and
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chaperone-prompt-tag
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Added progress-evt?, thread-cell-values?, prefab-key?,
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semaphore-peek-evt?, channel-put-evt?
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Fixed handle-evt to disallow a handle-evt
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Added variable-reference->module-path-index
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Added syntax-local-submodules, module-path-index-submodule,
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and module-compiled-submodules
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Changed module-path-index-join to support a submodule argument
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Changed module-path? to report #t for paths
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Changed resolved module paths to allow lists that represent
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submodule paths; see the revised contract on resolve-module-path-name
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Changed the module name resolver protocol so that a module declaration
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always triggers a notifification, and a notification supplies
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a source namespace (i.e., an extra argument) for attaches
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Changed the load/use-compiled handler protocol to subpport a submodule
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module
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Changed current-write-relative-directory to support a pair
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of paths: relative-to and base
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Changed local-expand to not add core forms if the stop list has
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just module*
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Changed modules instantiation so that requires are instantiated
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in the order that they are required
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Changed #lang for most languages so that it cannot be nested;
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this change is within syntax/module-reader and applies to
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racket, racket/base, and more
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Added relative-in
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Added box-cas!
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Changed contract on date second field to disallow 61, since
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leap seconds never appear more than once per minute
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Changed guarantee of portability of current-seconds
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and file-or-directory-modify-seconds
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Changed impersonate-struct so that accessor impersonation
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works only if the field is accessible via the current impersonator
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or a mutator for the same field is also impersonated
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Added racket/future to re-exports of racket
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racket/contract: added procedure-arity-includes/c, prompt-tag/c,
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and continuation-mark-key/c
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racket/control: added call/prompt, call/comp, abort/cc and
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allow #:tag argument for % and f-control
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racket/future: handle internal stack overflow without
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necessarily blocking on process 0; added 'overflow and
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'start-overflow-work log events
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racket/list: added optional arguments to add-between, including
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#:splice?, #:before-first, #:before-last, and #:after-last
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racket/math: added degrees->radians, radians->degrees, nan?,
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infinite?, exact-round, exact-floor, exact-ceiling, exact-truncate
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racket/flonum: added flexpt
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racket/unsafe/ops: added unsafe-flexpt
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ffi/unsafe: changed ffi-lib to open libraries in local mode by
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default; integer-type bounds are now consistently checked;
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added prop:cpointer
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racket/draw: added record-dc%, make-color, make-brush, and
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make-pen; treat a face as a Pango font description
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only when it contains a comma
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racket/gui: changed open-output-text-editor to by default deliver
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content via the current eventspace's handler thread; also
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added an #:eventspace optional argument
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ffi/com: added
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mysterx: removed ActiveX support plus com-add-ref and
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com-ref-count; use ffi/com, instead
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compiler/zo-structs: added a context field to all-from-module,
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added a cancel-id field to phase-shift, added pre-submodules
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and post-submodules field to mod, changed name field to allow
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a list of symbols
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racket/sandbox: added sandbox-propagate-exceptions; added
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sandbox-gui-enabled and sandbox-make-namespace; deprecated gui?,
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which is no long used internally; changed the default for
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sandbox-namespace-specs to sandbox-make-namespsace
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racket/cmdline: add #:ps for command-line
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slideshow/start: run a `slideshow' or `main' submodule, if any
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scribble/eval: added eval:result and eval:results
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racket/system: improved error messages by replacing memv expressions with string-no-nuls? and bytes-no-nuls?
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Version 5.2.1, January 2012
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Changed I/O scheduling to use epoll()/kqueue() when available
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Cross-module inline trivial functions, plus map, for-each,
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andmap, and ormap; 'compiler-hint:cross-module-inline hint
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Intern numbers, characters, strings, byte strings, and regexps in
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read and datum->syntax
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Added datum-intern-literal
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Regexps are `equal?' when they have the same source [byte] string
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and mode
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Added pseudo-random-generator-vector?
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Added port-closed-evt
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Generalized gcd and lcm to work on rationals
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Added module-predefined?
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Added optional #:fail argument to collection-file-path and
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collection-path
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Changed the racket -k command-line flag
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racket/class: added send/keyword-apply and dynamic-send
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racket/draw: added get-names to color-database<%>
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mzlib/pconvert: added add-make-prefix-to-constructor parameter,
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which changes the default constructor-style printing in DrRacket
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to avoid a make- prefix; the HtDP languages set the parameter to #t
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at-exp, scribble: dropped distinctness of @{}-introduced newline strings
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racket/draw: add text-outline to dc-path%
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net/mime: allow any subtype in input; made exception structs a
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subtype of exn:fail
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compiler/zo-structs: added inline-variant
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racket/stream: added stream constructor
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racket/draw: treat a face as a Pango font description
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Version 5.2, November 2011
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Generalized begin-with-syntax to allow phase-N definitions,
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both variable and syntax, within a module for all N >= 0;
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removed define-values-for-syntax from fully expanded forms;
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added begin-with-syntax to fully expanded forms
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Changed the location-creation semantics of internal definitions
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and letrec-syntaxes+values (to make them more let-like)
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Added support for the collection links file, including
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(find-system-path 'links-file) and the raco link command
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Added exn:fail:syntax:unbound
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Added date*, which extends date to include nanoseconds and a
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time zone name
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Changed seconds->date to accept a real number return a date*
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Added set-port-next-location! and changed the default prompt
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read handler to use it when input and output ar terminals
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Changed syntax-local-module-defined-identifiers to return
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a table for all phases instead of just two values
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Add syntax-transforming-module-expression? and
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variable-reference->module-base-phase
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Added variable-reference->module-declare-inspector, which allows
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a macro or other syntax tool to get the enclosing module's
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declaration-time inspector for taint operations
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Added syntax-shift-phase-level
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Removed built-in support for Honu reading and printing
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racket/unsafe/ops: added unsafe-list-ref and unsafe-list-tail
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ffi/unsafe: added support for C arrays and unions
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ffi/unsafe: changed define-cstruct to use an interned symbol tag,
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which means that it is not generative
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racket/place: added place* and dynamic-place* to specify the input,
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output, and error ports to use for a new place
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racket/place: cpointers, file-stream ports, and TCP ports can be
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sent across place channels
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racket/gui: moved set-icon method from frame% to
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top-level-window<%>
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racket/gui: removed unsupported MDI styles and method
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errortrace: with-mark and make-st-mark now take a phase level
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compiler/zo-structs: removed def-for-syntax, added
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seq-for-syntax, changed some mod fields, added field to
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def-syntaxes
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net/url: added support for redirections to get-pure-port
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planet: made the planet module-name-resolver thread-safe, and
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fixed planet to use already-downloaded .plt files (when present)
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framework: the finder get-file and put-file dialogs no
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longer normalize their results
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framework: added to the testing library so that tests can be
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run when ignoring focus information from the underlying OS
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compiler/cm: added support for using more powerful
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security-guards when writing to the filesystem
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mrlib/include-bitmap: adjust include-bitmap so it does not
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write to the filesystem
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Removed the Racket-to-C compiler: raco ctool -e/-c, mzc -e/-c,
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compile-extensions, compile-extensions-to-c, compile-c-extensions,
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compiler/cffi, compiler/comp-unit, compiler:inner^, and most
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options in compiler/option
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The The `lazy' language is now based on `racket' instead of `mzscheme'.
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Specifically, it now uses modern `require's and `provide's.
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Version 5.1.3, August 2011
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No changes
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Version 5.1.2, August 2011
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Replaced syntax certificates with syntax taints:
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Added syntax-tainted?, syntax-arm, syntax-disarm, syntax-rearm,
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syntax-taint, and syntax-protect
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Changed syntax-recertify and syntax-local-certifier to
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have no effect on the target syntax object
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Changed syntax-rules and syntax-id-rules to use
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syntax-protect implicitly
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Changed the way inspectors are associated to syntax objects
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and variable references in compiled code
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Changed "sequence" to include exact nonnegative integers
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Added #:unless clause to for
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Changed procedure-arity-includes? to report #f for keyword-requiring
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procedures by default
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mzlib/contract: removed (undocumented) exports:
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chaperone-contract-struct?
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contract-struct-first-order
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contract-struct-name
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contract-struct-projection
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contract-struct-stronger?
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contract-struct?
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flat-contract-struct?
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make-opt-contract/info
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opt-contract/info-contract
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opt-contract/info-enforcer
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opt-contract/info-id
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synthesized-value
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unknown?
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Changed assoc to accept an optional equality predicate
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racket/function: added identity, thunk, thunk*, compose1
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racket/require: added multi-in
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slideshow/pict: added rotate function, and added sxy anf syx
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fields to a child structure
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compiler/zo-struct: removed certificate structures; changed
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wrapper to have a tamper-status field instead of certs;
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added toplevel-map field to lam
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Version 5.1.1, May 2011
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Enabled single-precision floats by default
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Added single-flonum?
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Changed eqv? so that inexacts are equivalent only when they
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have the same precision
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Changed file-or-directory-permission to add 'bits mode
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and permission-setting mode
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Added special treatment of void as an 'inferred-name property
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Removed the "MrEd" compatability executable under Windows
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and Mac OS X, but the "mred" compatibility script remains
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racket/gui: added multi-column support to list-box%
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racket/gui: added scrollbar support to panel%, vertical-panel%,
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and horizontal-panel%
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racket/gui: added 'wheel-left and 'wheel-right events
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racket/file: add user-read-bit, etc.
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racket/contract: removed the following (undocumented) exports:
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build-flat-contract
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chaperone-contract-struct?
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contract-struct-first-order
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contract-struct-name
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contract-struct-projection
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contract-struct-stronger?
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contract-struct?
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contracted-function
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contracted-function-ctc
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contracted-function-proc
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contracted-function?
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first-order-get
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first-order-pred?
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first-order-prop
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flat-contract-struct?
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flat-get
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flat-pred?
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flat-prop
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make-opt-contract/info
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name-get
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name-pred?
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name-prop
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opt-contract/info-contract
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opt-contract/info-enforcer
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opt-contract/info-id
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proj-get
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proj-pred?
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proj-prop
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stronger-get
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stronger-pred?
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stronger-prop
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struct:contracted-function
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synthesized-value
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unknown?
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Version 5.1, February 2011
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Renamed "proxy" to "impersonator"
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Added current-get-interaction-input-port, which enables
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racket/gui events to be dispatched while a REPL is blocked
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Changed equal? to equate C pointers when they refer to the
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same address
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Internal: weak boxes are cleared before non-will-like
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finalizers; use late-weak boxes to get the old behavior
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Version 5.0.2, October 2010
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Changed body of `when', `unless', `cond' clauses, `case'
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clauses, and `match' clauses to be internal-definition contexts
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Swapped unsafe-vector*-ref with unsafe-vector-ref, etc.
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Added ->i to the contract library, improved ->*, adding #:pre and
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#:post, as well as making the optional arguments clause optional.
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Added #true and #false, and changed #t/#T and #f/#F to
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require a delimiter afterward
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Added print-boolean-long-form
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Added read-accept-lang, which is set to #t when
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reading a module
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Added flonum?
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Changed continuation-marks to accept a #f argument
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to produce an empty set of marks
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Added fxvectors
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Added unsafe-{s,u}16-{ref,set!}
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Added prop:proxy-of
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Added proxies to go with chaperones, and renamed chaperone property
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as proxy property; beware that the word "proxy" will change in
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a future version, perhaps to "impersonator"
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Added collection-file-path and collection splicing at the file
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level
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Version 5.0.1, July 2010
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Continuation barriers now block only downward continuation jumps
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and allow escapes through full continuations
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Changed internal-definition handling to allow expressions mixed
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with definitions
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Added support for subprocesses as new process groups
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Added support for best-effort termination of subprocess by a
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custodian
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Added flreal-part, flimag-part, make-flrectangular, and unsafe
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variants
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Added fl->eact-integer, fl->fx, and unsafe-fl->fx
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Added #:async-apply option to _fun
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Added chaperone-evt
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Added identifier-prune-to-source-module
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Changed apply binding to enable lower-level optimizations
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Upgraded to libffi 3.0.9+
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Version 5.0, May 2010
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Changed the core executable from mzscheme to racket
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Changed paths like the preferences file to use "racket" instead
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of "mzscheme" or "plt-scheme"
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Changed default value printer to use quasiquote style
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The language of a program's main module can specify run-time
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configuration actions, such as setting the default printer's
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style
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Changed regexp-match* et al. to make ^ matching relative to the
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original string (not substrings for matches after the for) and to
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allow empty matches in all positions except immediately after an
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empty match
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Changed regexp-match and other functions to allow a path as
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an input
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Added chaperones
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Version 4.2.5, March 2010
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Added scheme/future, enabled by default on main platforms
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Changed module to wrap each body expression in a prompt
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Changed define-cstruct to bind type name for struct-out, etc.
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Version 4.2.4, January 2010
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Added scheme/flonum and scheme/fixnum
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Extended scheme/unsafe/ops
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Changed JIT to support unboxed local binding of known-flonum
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arguments to unsafe-fl functions
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Changed JIT to inline numeric ops with more than 2 arguments
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Added #:save-errno option for foreign-function types
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Added module->imports and module->exports
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Version 4.2.3, November 2009
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Changed _pointer (in scheme/foreign) to mean a pointer that does not
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refer to GCable memory; added _gcpointer
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Added scheme/vector
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Version 4.2.2, September 2009
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Added scheme/unsafe/ops
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Added print-syntax-width
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Added file-or-directory-identity
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Inside: embedding applications should call scheme_seal_parameters
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after initializing parameter values (currently used by Planet)
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Version 4.2.1, July 2009
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Added string->unreadable-symbol and symbol-interned?
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Added syntax-local-lift-provide
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Added syntax-local-lift-values-expression
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Added identifier-prune-lexical-context and quote-syntax/prune
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Version 4.2, May 2009
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Changed visiting of modules at phase N to happen only when compilation
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at phase N starts
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Changed expander to detect a reaname transformer and install a
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free-identifier=? syntax-object equivalence
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Changed provide to convert an exported rename transformer to its
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free-identifier=? target
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Added 'not-free-identifier=? syntax property to disable free-identifier=?
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propagation through a rename transformer
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Added prop:rename-transformer and prop:set!-transformer
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Fixed scheme/local so that local syntax bindings are visible to later
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local definitions
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Changed current-process-milliseconds to accept a thread argument
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Added hash-hash-key?, hash-ref!
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Added in-sequences, in-cycle
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Version 4.1.5, March 2009
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Allow infix notation for prefab structure literals
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Change quasiquote so that unquote works in value positions of #hash
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Change read-syntax to represent #hash value forms as syntax
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Added bitwise-bit-field
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Version 4.1.4, January 2009
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Changed memory accounting to bias charges to parent instead of children
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Changed function contracts to preserve tail recursion in many cases
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Added scheme/package, scheme/splicing, ffi/objc
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Added exception-backtrace support for x86_84+JIT
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Added equal?/recur
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Added equal<%> and interface* to scheme/class
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Added procedure-rename
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Added extra arguments to call-with-continuation-prompt
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Added extra argument to raise-syntax-error
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Added compile-context-preservation-enabled
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Added syntax-local-lift-require
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Added internal-definition-context-seal, which must be used on an
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internal-definition context before it's part of a fully expanded form
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Added syntax-local-make-delta-introducer
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Changed make-rename-transformer to accept an introducer argument that
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cooperates with syntax-local-make-delta-introducer
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Added internal-defininition-context?
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Added identifier-remove-from-defininition-context
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Version 4.1.3, November 2008
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Changed scheme to re-export scheme/port
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In scheme/port: added
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Added call-with-immediate-continuation-mark
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In scheme/port: added port->string, port->bytes, port->lines
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port->bytes-lines, display-lines, [call-]with-input-from-{string,bytes},
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and [call-]with-output-to-{string,bytes}
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In scheme/file: added file->string, file->bytes, file->lines,
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file->value, file->bytes-lines, write-to-file, display-to-file,
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and display-lines-to-file
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Added variable-reference? and empty #%variable-reference form
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Extended continuation-marks to work on a thread argument
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Version 4.1.2, October 2008
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Changed binding of identifiers introduced by unit signatures
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to take into account the signature use's context
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Added make-syntax-delta-introducer
|
|
Changed continuation-marks to accept a thread argument
|
|
Added eqv-based hash tables
|
|
Added hash-update and hash-update!
|
|
Changed -X and -S to complete directory relative to pwd, and
|
|
changed -S to add after main collects
|
|
|
|
Version 4.1.1, October 2008
|
|
Added read-language
|
|
Added module-compiled-language-info, module->language-info,
|
|
and 'module-language property support
|
|
|
|
Version 4.1, August 2008
|
|
Changed namespaces to have a base phase; for example, calling
|
|
eval at compile-time uses a phase-1 namespace
|
|
Added logging facilities: make-logger, etc.
|
|
Added "inheritance" to structure type properties, and change
|
|
prop:procedure from scheme/base to better support keywords
|
|
Added bitwise-bit-set?
|
|
Added in-value
|
|
|
|
Version 4.0, June 2008
|
|
>> See MzScheme_4.txt
|
|
|
|
Version 372, December 2007
|
|
Added syntax-local-lift-context
|
|
Added #lang
|
|
Added require-for-label, provide-for-syntax, provide-for-label,
|
|
identifier-label-binding, module-label-identifier=?
|
|
|
|
Version 371, August 2007
|
|
Added hash-table-iterate-{first,next,key,value}
|
|
Added keyword<?
|
|
Added make-derived-parameter
|
|
Added make-sibling-inspector
|
|
Added graph? argument to read[-syntax]/recursive
|
|
Added read-accept-infix-dot
|
|
Changed #!<space> and #!/ to general comment forms
|
|
Added continuation?
|
|
Added continuation-prompt-tag?
|
|
Inside MzScheme: GC_{malloc,free}_immobile_box
|
|
foreign.ss: added {malloc,free}-immobile-box
|
|
|
|
Version 370, May 2007
|
|
Memory management:
|
|
Default build uses 3m instead of CGC
|
|
Added custodian boxes and custodian-memory-accounting-available?
|
|
Added initial custodian argument to custodian-require-memory
|
|
Exceptions:
|
|
Removed current-exception-handler and initial-exception-handler
|
|
Added uncaught-exception-handler
|
|
Default error escape handler aborts to default continuation
|
|
tag with the void procedure
|
|
Added call-with-exception-handler
|
|
Changed read-eval-print-loop and the default load handler to wrap
|
|
each evaluation with a prompt and with #%top-interaction
|
|
Changed top-level begin to insert a prompt around each sub-expression
|
|
except the last
|
|
Added #%top-interaction and #%expression
|
|
Changed make-exn to automatically convert a mutable message string
|
|
to an immutable string
|
|
Units:
|
|
New unit system provided by MzLib's "unit.ss"
|
|
Ports and pathnames:
|
|
Added prop:input-port and prop:output-port
|
|
Added support for manipulating filesystem paths that work on
|
|
other platforms
|
|
Added string->path-element and path-element->string
|
|
Changed path->directory-path, simplify-path, and split-path to include
|
|
a trailing path separator even when the result would be a directory
|
|
path without it
|
|
Changed simplify-path for Windows paths to replace / with \
|
|
Changed current-directory to apply path->directory-path to given paths
|
|
Added reset?, start-, and end-index arguments to get-output-bytes
|
|
Added port-closed?
|
|
Added optional argument to tcp-addresses to get port numbers
|
|
Syntax and loading:
|
|
Default load handler enables #reader (even when not reading a module)
|
|
Added module-path-index-resolve
|
|
Added syntax-local-expand-expression
|
|
Changed dyanmic-require to expand requests for exported syntax
|
|
bindings
|
|
Added an argument to syntax-local-certifier indicating whether the
|
|
generated procedure attaches active or inactive certificates
|
|
Changed macro expansion of bound identifiers so that `local-expand'
|
|
works with an empty stop list
|
|
Module top-level enforces initial categorization of expressions
|
|
versus other forms
|
|
Changed H-expression parsing to represent angle brackets specially
|
|
Misc:
|
|
Changed print-struct default to #t instead of #f
|
|
Added parameterize*
|
|
Added 'gc and 'so-suffix flags for system-type
|
|
Added vector->values
|
|
Changed char-whitespace? to produce #t for #\u0085
|
|
Added -p, -P, and -Q command-line options
|
|
Added procedure-struct-type?
|
|
Added system-idle-evt
|
|
Fixed mzc --exe to work with C-implemented extension modules
|
|
MzLib:
|
|
serialize.ss: Path includes the path's convention
|
|
foreign.ss: Added ptr-add, memmove, memcpy, and memset
|
|
runtime-paths.ss: Cooperates with mzc --exe
|
|
Inside MzScheme:
|
|
Use SCHEME_INPUT_PORTP() instead of SCHEME_INPORTP()
|
|
SCHEME_OUTPUT_PORTP() instead of SCHEME_OUTPORTP()
|
|
scheme_input_port_record() instead of cast to Scheme_Input_Port*
|
|
scheme_output_port_record() instead of cast to Scheme_Output_Port*
|
|
Added scheme_set_type_equality() with help from Dimitris Vyzovitis
|
|
Added XFORM_START_SKIP, etc.
|
|
|
|
Version 360, November 2006
|
|
Continuations:
|
|
Added delimited continuations: call-with-continuation-prompt,
|
|
call-with-composable-continuation, etc.
|
|
Changed call-with-escape-continuation so that its argument is
|
|
no longer applied in tail position (reverses a change in v350)
|
|
Regexps:
|
|
Added case-insensitive mode, multi-line mode, lookahead, lookbehind,
|
|
non-backtracking, and conditionals to regexp language
|
|
Added pregexp, byte-pregexp, and #px..., which includes numeric
|
|
quantifiers, backreferences char classes, and Unicode predicates
|
|
Added regexp-match?, pregexp?, and byte-pregexp?
|
|
Improved [p]regexp performance
|
|
Filesystem:
|
|
Unix and Mac OS X: Changed path operations to use "./~..." as an
|
|
encoding for a relative path "~..."
|
|
Changed simplify-path to always normalize path separators,
|
|
preserve syntactic directoryness, and remove \\?\ from
|
|
Windows paths when possible
|
|
Added path-element->bytes and bytes->path-element
|
|
Changed make-file-or-directory-link to not expand the link
|
|
content, and changed make-security-guard to have a separate
|
|
link guard procedure
|
|
Misc:
|
|
Removed write-image-to-file and read-image-from-file
|
|
ormap and andmap now tail-apply a given function for the
|
|
last list element(s)
|
|
eval evaluates its argument in tail position
|
|
Improved compilation of call-with-values and an immediate
|
|
lambda argument to avoid closure creation
|
|
Added raise-arity-error
|
|
Changed bytecode compiler to perform more closure conversion
|
|
and lifting
|
|
Changed local-expand; #f stop list means expand only immediate
|
|
MzLib:
|
|
class.ss: added inherit/inner and inherit/super, to eventually
|
|
replace rename-super and rename-inner;
|
|
added member-name-key=?
|
|
|
|
Version 352, July 2006
|
|
Minor bug fixes
|
|
|
|
Version 351, July 2006
|
|
Changed hash-table-get to accept a non-prcedure third argument as
|
|
a default value (instead of requiring a thunk)
|
|
Changed the module name resolver protocol so that the resolver is
|
|
required to accept 1, 3, and 4 arguments; the new 4-argument mode
|
|
supports resolving a module path without loading the module
|
|
Changed syntax/loc to not adjust location information for a
|
|
template that contains only a pattern variable
|
|
MzLib: Added define-member-name, member-name-key, and
|
|
generate-member-key to class.ss
|
|
Added syntax-local-lift-moule-end-declaration
|
|
Changed namespace-attach-module and namespace-unprotect-module
|
|
to accept quoted module paths, instead of only symbolic names
|
|
Fixed avoidable overflow and undeflow in magnitude and / for
|
|
inexact complex numbers
|
|
Fixed bug in continuation sharing
|
|
Improved 3m performance
|
|
Upgraded to gc 6.7
|
|
|
|
Version 350, June 2006
|
|
JIT compiler:
|
|
Added just-in-time native-code compiler with a new eval-jit-enabled
|
|
parameter
|
|
Added compile-enforce-module-constants parameter; the default is #t,
|
|
which effectively prohibits redeclaraing modules or changing
|
|
variable bindings through module->namespace
|
|
Added function inlining, and fixed constant propagation and folding
|
|
in bytecode compiler
|
|
Stack trace:
|
|
Added a "stack trace" to the default error display
|
|
Added exn:fail:user and raise-user-error
|
|
Installation and executables:
|
|
Changed installation process to support more configurable directory
|
|
structure
|
|
Dropped PLTHOME, and instead added support to embed a path to the
|
|
main "collects" directory within the executable
|
|
Changed style of executables generated by mzc --[gui-]exe under
|
|
Unix; for old-style executables, use --orig-exe, or use --exe-dir
|
|
to package the executable
|
|
Added 'run-file, 'collects-dir, and 'orig-dir modes to find-system-path
|
|
Changed initial program binding to the result of find-system path
|
|
with 'run-file instead of 'exec-file
|
|
Added use-user-specific-search-paths parameter, -U flag
|
|
Continuations:
|
|
For nested captured continuations, the shared continuation tail is
|
|
represented by shared data
|
|
The body of let/cc and the procedure passed to call/ec are
|
|
evaluated/called as a tail expression/call
|
|
Made parameter/mark lookup amortized constant time,
|
|
instead of potentially O(stack depth)
|
|
Misc:
|
|
Added char-general-category
|
|
Added string-normalize-nf[k]{d,c}
|
|
Changed bitwise-{and,ior,xor} to accept 0 arguments
|
|
Changed file-position: eof moves to the end of a file/string
|
|
Changed readtable to support "default" parser used for symbols/numbers
|
|
Changed system-type's optional argument to 'os, 'link, or 'machine
|
|
Added current-thread-initial-stack-size
|
|
Added procedure-closure-contents-eq?
|
|
Added struct-type-make-constructor and struct-type-make-predicate
|
|
Inside MzScheme: added scheme_make_prim_closure_w_arity(), etc.
|
|
|
|
Version 301, December 2005
|
|
Fixed a custom-input-port bug in the case that a read or peek procedure
|
|
returns an event created by handle-evt
|
|
|
|
Version 300, December 2005
|
|
Generalized network-address handling, includes IPv6
|
|
Added ephemerons
|
|
0.0 and -0.0 are different by eqv?
|
|
Added keyword values (#: prefix) and keyword? predicate
|
|
Added system-language+country
|
|
Added current-preserved-thread-cell-values
|
|
Added #%variable-reference
|
|
MzLib: added object-method-arity-includes? to class.ss
|
|
Added --xform mode to mzc
|
|
|
|
Version 299.400, Setember 2005
|
|
Improved Windows path support (e.g., \\?\ paths)
|
|
Added optional argument to simplify-path
|
|
Added 'pair-shape property to reader
|
|
Inside MzScheme: added scheme_get_port_file_descriptor()
|
|
and scheme_get_port_socket()
|
|
|
|
Version 299.200, August 2005
|
|
Ports:
|
|
TCP output ports are now block-buffered by default
|
|
Changed file-stream-buffer-mode to work on more port types,
|
|
including TCP ports and custom ports
|
|
Added extra argument to make-input-port and make-output-port
|
|
to get/set buffer mode
|
|
Changed port-count-lines! and port-next-location to work
|
|
on output-ports
|
|
Changed make-output-port to take three new arguments:
|
|
get-location procedure, count-lines! procedure,
|
|
and initial position
|
|
Changed make-input-port to take two new arguments: count-lines!
|
|
procedure (defaults to void) and initial position
|
|
Added relocate-input-port, relocate-output-port, transplant-input-port,
|
|
and transplant-output-port to MzLib's "port.ss"
|
|
Strings and Unicode:
|
|
\U allows up to 8 digits instead of 6
|
|
Changed char-lower-case? and char-upper-case?
|
|
Added string-upcase, string-downcase, string-titlecase,
|
|
string-foldcase, and char-foldcase
|
|
In case-insensitive mode, symbols are case-folded instead
|
|
of downcased (which is usually the same thing)
|
|
Reader:
|
|
Added #reader and readtables
|
|
When { or [ is disabled, it is treated as an illegal character
|
|
instead of a symbol character by the reader
|
|
Changed read-syntax[/recursive] to remove the delta-list
|
|
argument
|
|
Changed read handler to remove the delta-list argument
|
|
Changed read[-syntax]/recursive to produce a special-comment
|
|
value when a comment is parsed (instead of reading the
|
|
next datum)
|
|
Printer:
|
|
Added custom struct writers through prop:custom-write,
|
|
custom-write?, custom-write-accessor
|
|
Syntax and Macros:
|
|
Changed expansion of internal definitions so that local
|
|
macros that expand to definition forms can be used
|
|
within the local definition set
|
|
Added syntax-local-make-definition-context
|
|
Added syntax-local-bind-syntaxes
|
|
Added optional definition-context argument to
|
|
local-expand and syntax-local-value
|
|
Changed certification so that a reference cannot have more
|
|
certificates than its binding, and lexical context gives
|
|
syntax-quoted values inactive instead of active certificates
|
|
Added sub-form for require: only
|
|
Added module-provide-protected?
|
|
Fixed all-from provides to include redundant imports from the
|
|
indicated require
|
|
Added prefix-all-defined and prefix-all-defined-except
|
|
provide forms
|
|
Structure Types:
|
|
Struct custodian can be #f to make it fully transparent
|
|
Libraries:
|
|
Added define-serializable-class[*], externalizble<%>,
|
|
class/derived, and inspect clause form to MzLib's "class.ss"
|
|
Changed run-server in thread.ss to use the same parameterization
|
|
for all connection threads
|
|
Added define-struct/properties to MzLib's "struct.ss"
|
|
Removed pretty-print-display-string-handler from MzLib's
|
|
"pretty.ss", and adapted protocol for hook procedures
|
|
slightly (i.e., they usually must write to a given port)
|
|
Changed collects/web-server request-bindings/raw
|
|
to return an alist of bytes, not strings
|
|
Misc:
|
|
Cygwin build produces a Unix-style installation instead of
|
|
a Windows-style installation (e.g., system-type is 'unix)
|
|
|
|
Version 299.100, March 2005
|
|
Unicode and Strings:
|
|
Removed char-locale... operations
|
|
Removed char->latin-1-integer and latin-1-integer->char
|
|
Added string-copy!, read-string!, peek-string!, and write-string
|
|
Added convert-stream, reencode-input-port, etc. to port.ss
|
|
Added \u and \U syntax in strings and chars
|
|
Fixed log for large exact integers
|
|
Added path-string?, path-replace-suffix
|
|
Renamed all of the number "byte-string" functions to "bytes"
|
|
Added \' escape for strings (for compatibility with C & Java)
|
|
Added locale-string-encoding
|
|
Changed regexp-replace* to raise an exception if it matches an
|
|
empty string
|
|
Added binding of greek-lambda character (code point #x03BB) to
|
|
expand to lambda
|
|
Paths:
|
|
Changed pref dir (all platforms) and pref file name (except Windows);
|
|
changed home dir under Windows to use the registry-specified profile
|
|
directory
|
|
Added 'doc-dir and 'desk-dir to find-system-path
|
|
Unix and Mac OS X: path expansion removes redundant slashes
|
|
Removed exists check for current-directory
|
|
Ports:
|
|
Change default buffering of file-stream output ports
|
|
Changed file-stream-buffer-mode to work on input ports
|
|
Changed make-custom-input-port to make-input-port
|
|
Changed make-custom-output-port to make-output-port
|
|
Added terminal-port?
|
|
Added pipe-content-length
|
|
Changed {read,peek}-bytes-avail!{,*,/enable-break} to produce
|
|
a special-reading procedure when a stream contains specials
|
|
Added make-pipe-with-specials to MzLib's "port.ss"; procedures
|
|
like copy-port now also handle specials
|
|
Moved most of (lib "thread.ss") to (lib "port.ss"), and many
|
|
remaining useless procedures (such as dynamic-enable-break)
|
|
were removed
|
|
Added port-progress-evt, port-commit-peeked, and
|
|
port-provides-progress-evts?
|
|
Added an optional progress-event argument to peek-bytes-avail!,
|
|
etc., before the port argument
|
|
Added an optional progress-event argument to regexp-match-peek
|
|
and regexp-match-peek-positions
|
|
Peeking from a limited pipe effectively increases its capacity,
|
|
temporarily
|
|
Added optional port name arguments to make-pipe
|
|
and open-{input,output}-{string,bytes}
|
|
Changed object-name for input ports and output ports
|
|
Added write-special and write-special-avail*
|
|
A location-offset lists for a port read handler can contain #f
|
|
Changed read-syntax to make the source name optional (defaults
|
|
to the port's name)
|
|
Syntax and Macros:
|
|
Eliminated "identifier for a definition has a module context"
|
|
errors
|
|
In a syntax template, when an identifier has more ellipses
|
|
then in the pattern, inner ellipses bind more
|
|
tightly than the outer ellipses
|
|
New forms: require-for-template (core), define-values-for-syntax
|
|
(core), define-for-syntax, begin-for-syntax
|
|
New procedures: local-transformer-expand, syntax-transforming?,
|
|
syntax-local-lift-expression, local-expand/capture-lifts,
|
|
local-transformer-expand/capture-lift, syntax-recertify,
|
|
module-template-identifier=?, identifier-template-binding,
|
|
rename-transformer-target
|
|
Removed fluid-let-syntax, syntax-local-certifier
|
|
Added (lib "stxparam.ss"), partly as a replacement for
|
|
fluid-let-syntax
|
|
Removed use of #%top from references to a module's own bindings
|
|
Added protect sub-form of provide
|
|
module-compiled-imports now returns 3 values
|
|
indentifier-[transformer-]binding returns a list of five items
|
|
instead of four for a module-bound identifier
|
|
Added 'module-begin to the set of possible results from
|
|
syntax-local-context
|
|
Added begin-with-definitions to (lib "etc.ss")
|
|
Added syntax-property-symbol-keys
|
|
Added namespace-unprotect-module
|
|
Changed eval, expand, etc. so that only the leading
|
|
identifier in a module form is given context
|
|
Changed module expansion/compilation so that it's deterministic,
|
|
as long as macros do not use gensym or external side-effects;
|
|
using generate-temporaries preserves determinism
|
|
Changed module->namespace and module re-definition so that they're
|
|
controlled by the code inspector, not the modules attach state
|
|
Added current-compile parameter, which is used by compile
|
|
and by the default evaluation handler
|
|
Changed expansion-time structure type info to allow #f in place
|
|
of a mutator id
|
|
Added construct-time field guards to structure types
|
|
Changed raise-syntax-error so that it no longer accepts a list
|
|
as its first argument
|
|
Reader Syntax:
|
|
Added #<< here strings
|
|
Added H-expression mode to reader, triggered by #hx or #honu,
|
|
and escaped by #sx
|
|
Added read-honu, read-honu-syntax, and print-honu
|
|
Changed #; for top-level read; graph assignments are forgotten
|
|
before reading the next expression
|
|
Control Flow and Paramaters:
|
|
While an exception handler is called, the current exception
|
|
handler is reset to the default handler; similarly,
|
|
the error display and escape handlers are called by the
|
|
default exception handler in a context that resets the
|
|
corresponding parameters to the default handlers
|
|
An exception handler can handle exceptions that are raised
|
|
during the handler (by using with-handlers or setting the
|
|
current-exception-handler parameter)
|
|
During the evaluation of dynamic-wind pre and post thunks,
|
|
the current continuation marks and parameterization are reset
|
|
to those active at the time of the dynamic-wind call
|
|
(except that the parameterization is extended to disable
|
|
breaks)
|
|
Added current-parameterization and call-with-parameterization
|
|
Added continuation-mark-set-first
|
|
Removed optional argument of continuation-mark-set->list
|
|
Added continuation-mark-set->list*
|
|
Added call-with-continuation-barrier
|
|
Renamed "continuation boundary" to "continuation barrier"
|
|
Added call-with-semaphore and call-with-semaphore/enable-break
|
|
Events:
|
|
Renamed udp-send-evt and udp-receive-evt to udp-send-ready-evt
|
|
and udp-receive-ready-evt
|
|
Added udp-send-evt, udp-send-to-evt, and udp-receive!-evt
|
|
Added tcp-accept-evt
|
|
Added make-alarm
|
|
Misc:
|
|
Regexp grammar changed to match docs with respect to "-"
|
|
Struct property types are now overridable in subtypes
|
|
Added module-compiled-exports
|
|
Added hash-table-copy and hash-table-count
|
|
Changed the random-number generator to use L'Ecuyer's MRG32k3a
|
|
algorithm, as encouraged by SRFI-37
|
|
Changed random to accept 0 arguments to generate a random real
|
|
number, and added pseudo-random-generator->vector and
|
|
vector->pseudo-random-generator; these are compatible
|
|
with the SRFI-27 reference implementation
|
|
Added print-unreadable parameter
|
|
Changed use-compiled-file-kinds to use-compiled-file-paths
|
|
Mac OS X: extension suffix changed from ".so" to ".dylib"
|
|
Libraries:
|
|
"class.ss" MzLib module: changed the interface to
|
|
make-primitive-class; see plt/collects/mzscheme/examples/tree.cxx
|
|
for details
|
|
"serialize.ss" MzLib module: new
|
|
"contract.ss" MzLib module: names are more uniform; if the name of a
|
|
contract a suffix, the suffix is now "/c" (instead of one of "/p",
|
|
"/c", or "/f")
|
|
"url.ss" in the "net" collection: new url data definition; url/user is
|
|
gone, and no extra encoding/decoding required once a url has been
|
|
parsed anymore
|
|
Inside MzScheme:
|
|
Added scheme_set_type_printer, scheme_print_bytes,
|
|
and scheme_print_string
|
|
|
|
Version 209, December 2004
|
|
Fixed (abs -1073741824)
|
|
Avoided gcc 3.4 bug(?) related to inline checking for -0.0
|
|
|
|
Version 208, August 2004
|
|
Added string-copy! and hash-table-count
|
|
Upgraded to gc 6.3
|
|
|
|
Version 207, May 2004
|
|
Fixed comparison of infinities and 0.0 in eqv?
|
|
Fixed incorrect handling of -0.0 versus 0.0 for various
|
|
platforms, including x86 with gcc 3.2
|
|
Fixed inefficient (/ x 1) for an exact rational x
|
|
|
|
Version 206, January 2004
|
|
A shut-down custodian is no longer allowed to manage new
|
|
objects
|
|
Changed thread-resume so that it adds custodians to a thread,
|
|
instead of changing the thread's custodian
|
|
Added make-thread-group, etc.
|
|
Changed define to support MIT-style curried-procedure forms
|
|
Added an optional argument to peek-char and
|
|
peek-char-or-special to indicate the number of characters
|
|
to skip in the input stream
|
|
Added optional argument to file-or-directory-modify-seconds
|
|
for setting the modification date of a file or directory
|
|
Added integer-sqrt, quotient/remainder, integer-sqrt/remainder
|
|
Fixed transitivity of numerical comparison for mixed
|
|
inexact--exact comparisons when the inexact versions
|
|
of the numbers are = but the exact versions are not
|
|
Macro templates can include consecutive ... for splicing
|
|
sequences
|
|
Macro patterns can include sub-patterns after ...
|
|
Improved error reporting for with-syntax
|
|
Non-constant syntax pairs generated from templates
|
|
(in syntax-case, with-syntax, quasisyntax, etc.)
|
|
keep source-location and context information,
|
|
instead of acquiring the context and location of
|
|
the generator expression as a whole
|
|
generate-temporaries produces identifiers that are
|
|
suitable for use as defined names in the module
|
|
being expanded (if any)
|
|
Added syntax-local-module-introduce, which is used
|
|
by generate-temporaries
|
|
Added syntax-track-origin
|
|
Changed syntax-local-get-shadower to add the current
|
|
module expansion context, if any
|
|
Added 'disappeared-binding and 'disappeared-use properties
|
|
and refined 'origin tracking for internal definitions
|
|
and spliced sequences
|
|
Added optional namespace argument to most of the
|
|
namespace- primitives
|
|
Added vector-immutable
|
|
Fixed a bug in the bytecode verifier that caused it to skip
|
|
significant parts of typical bytecode
|
|
Added a hook for (planet ...) module paths to the standard
|
|
module name resolver
|
|
MzLib's contract.ss: changed and/f to and/c, or/f is deprected
|
|
(use union), added object contracts, flat-contracts (without
|
|
names) are a separate type; use flat-contract-predicate rather
|
|
than flat-named-contract, added flat-rec-contract, improved
|
|
performance
|
|
MzLib's class.ss: added get-field and field-bound?
|
|
|
|
|
|
Version 205, August 2003
|
|
Extended regexp language with "(?:...)"
|
|
Added 'addon-dir for find-system-path
|
|
Changed default library collections path list to include
|
|
(build-path (find-system-path 'addon-dir) (version) "collects")
|
|
Added #; reader comment syntax
|
|
Added namespace-module-registry
|
|
Added module->namespace
|
|
Changed eval handler so that when it is given a syntax object, it
|
|
does not extend the object's lexical context with top-level
|
|
bindings from the current namespace
|
|
Added namespace-syntax-introduce
|
|
Added eval-syntax, compile-syntax, expand-syntax, expand-syntax-once,
|
|
and expand-syntax-to-top-form
|
|
Added set!-transformer-procedure
|
|
Added namespace-undefine-variable!
|
|
syntax-local-context can return a list for internal-define
|
|
expansion, and local-expand accepts a list to mean
|
|
internal-define expansion; for built-in expansion, each
|
|
list item uniquely indicates a distinct, active
|
|
internal-define expansion context
|
|
Added syntax-local-get-shadower
|
|
Changed top-level `define-syntaxes' to treat zero results
|
|
from the right-hand side as an abort, so that
|
|
(define-syntax (id ...) (values))
|
|
declares the ids. This is useful for macros that
|
|
expand to mutuaully recursive definitions of private
|
|
variables
|
|
Changed the expansion-time information associated with a
|
|
struct type to include an identifier for the super-type
|
|
Handling of --main/-C command-line flag changed
|
|
Changed "scheme-<dialect>" script handling to add the script
|
|
path as an argument, which matches SRFI-22
|
|
Changed Windows extension-linking convention; extensions
|
|
link directly to the MzScheme/GC DLLs
|
|
Added an optional argument to system-library-subath
|
|
Added custodian-managed-list
|
|
Changed vector-set-performance-stats! to accept an optional
|
|
thread argument for thread-specific stats
|
|
Mac OS Classic: file-size result no longer includes
|
|
the resource-fork size
|
|
Added a `super-new' local form to (lib "class.ss")
|
|
Added a `new' form to (lib "class.ss")
|
|
3m: changed to the calling convention for managing
|
|
GC_variable_stack
|
|
|
|
Version 204, May 2003
|
|
Added UDP operations
|
|
Added synchronous channels
|
|
Added thread-suspend and thread-resume
|
|
Added thread/suspend-to-kill
|
|
Added thread-dead?
|
|
Added thread-suspend-waitable, thread-resume-waitable,
|
|
and thread-dead-waitable
|
|
Added make-wrapped-waitable, make-guard-waitable, and
|
|
make-nack-guard-waitable a la CML
|
|
Added waitables->waitable-set, which is like CML's choose
|
|
Renamed make-nack-waitable to make-nack-guard-waitable
|
|
to claify its relation to make-guard-waitable
|
|
Added make-poll-guard-waitable
|
|
Added make-semaphore-peek
|
|
Added current-wait-pseudo-random-generator
|
|
Changed unreachable threads to be garbage-collected when
|
|
blocked on any combination of otherwise unreachable
|
|
waitables by object-wait-multiple, semaphore-wait,
|
|
channel-put, channge-get, or thread-wait; in addition,
|
|
unreachable suspended threads are garbage-collected
|
|
Added "async-channel.ss" to MzLib
|
|
Changed make-custom-input-port to drop the initial
|
|
waitable argument; instead, the read and peek
|
|
functions should return a waitable instead of 0
|
|
Changed make-custom-output-port so that the first
|
|
argument is #f or a procedure to return a waitable
|
|
(instead of #f or a waitable)
|
|
Added tcp-port?
|
|
Added port-file-identity
|
|
Deprecated normal-case-path
|
|
Changed the symbolic name for a file-based module to be
|
|
determined without using normal-case-path
|
|
Fixed MzLib's regexp-split, etc., to work on input ports
|
|
Changed make-struct-type-property to accept a guard
|
|
procedure for the property
|
|
Changed make-struct-type to accept a list of immutable
|
|
field positions
|
|
Changed struct-type-info to return 8 values instead of 6
|
|
to include information on immutable fields
|
|
Changed proc-spec handling in make-struct-type; an integer
|
|
value must be < init-field-k, and overriding is disallowed
|
|
(for consistency with user-defined properties)
|
|
Added prop:waitable
|
|
Changed handling of top-level and module top-level definitions
|
|
of identifiers that originate from a macro expansion; such
|
|
definitions now bind only the uses of the identifier with the
|
|
same expansion origin
|
|
Added make-syntax-introducer, for creating new macro origins
|
|
Changed generate-temporaries so that it does not use gensym,
|
|
but instead uses make-syntax-introducer to distinguish names
|
|
Added make-rename-transformer and rename-transformer?
|
|
Changed syntax-local-value to cooperate specially with
|
|
rename transformers
|
|
Fixed parse problems with # in numbers, as in `1#/2' and
|
|
`#e#x+e#s+e@-e#l-e'
|
|
Added literal hashtable syntax #hash..., added support
|
|
for immutable hash tables, and added print-hash-table
|
|
parameter
|
|
Added literal regexp syntax #rx... and changed the printer
|
|
to use this notation for printing regexps
|
|
Changed hash-table? to accept 'weak and/or 'equal and return
|
|
#t only if the first argument is a hash table created with
|
|
the corresponding flag(s)
|
|
Changed equal? to compare hash tables by determining whether
|
|
they map the same keys to equal? values
|
|
Added vector->immutable-vector
|
|
Added immutable-box
|
|
Added vector-set-performance-stats!
|
|
Changed columns to count from 0 instead of 1
|
|
|
|
Version 203, December 2002
|
|
Added support for structure types whose instances act as
|
|
procedures
|
|
Added open-input-output-file
|
|
Added port-count-lines-enabled parameter
|
|
|
|
Version 202, August 2002
|
|
Changed expansion of () to '()
|
|
Unix: Fixed open on fifos to not block
|
|
Windows 9x: Added workaround for resolution of "127.0.0.1"
|
|
|
|
Version 201, July 2002
|
|
Fixed bug in port reading (especially variants of read-string)
|
|
and file-position that follow peeks on the port
|
|
Added exn:special-comment, expected to be used by custom input ports
|
|
that contain non-character-based comments (e.g., the comment boxes
|
|
soon to appear in DrScheme)
|
|
Windows: added special handling of "special files" (COM1, etc.);
|
|
internally MzScheme opens the file only once to satisfy multiple
|
|
open-input-file and open-output-file calls that have the
|
|
port open at the same time
|
|
|
|
Version 200, June 2002
|
|
>> See MzScheme_200.txt for information on major changes in
|
|
MzScheme 200. Minor changes are listed below.
|
|
(cond) alays returns void; the cond-allow-fallthough parameter and
|
|
exn:cond exception have been removed
|
|
Changed all comparison precedures to require at least two
|
|
operands, including =, <, ..., char=?, char<?, ...,
|
|
string=?, string<?, ...
|
|
Added locale support with string-locale<?, etc.
|
|
Added integer-byte-string->integer, floating-point-byte-string->real,
|
|
integer->integer-byte-string, real->floating-point-byte-string,
|
|
Renamed exn:misc:user-break to exn:break
|
|
Removed the port field of exn:read
|
|
Renamed arity to procedure-arity
|
|
Replaced primitive-name and inferred-name with object-name
|
|
Added security guards for controlling file and network access
|
|
Added an "infix" conversion in the reader, triggered by a pair of dots
|
|
between a pair of parens
|
|
Added #cs and #ci prefixes for controlling case sentivity during read
|
|
Added current-command-line-arguments parameter
|
|
Added error-print-source-location parameter
|
|
Added current-load/use-compiled parameter
|
|
Changed string constants to support ANSI C escapes (e.g., \n)
|
|
Fixed leaks (file descriptors, etc.) that could happen with
|
|
thread kills
|
|
Fixed memory bug in the run-time support for mzc-compiled code
|
|
Fixed an old and serious set of tail-call+thread-or-exception+GC bugs
|
|
in the core interpreter
|
|
Changed the error display handler to take a raised value (usually
|
|
an exception record) as a second argument
|
|
Removed make-hash-table-weak and changed make-hash-table to
|
|
accept up to two flag arguments: 'weak and/or 'equal
|
|
Added eq-hash-code and equal-hash-code
|
|
Extended regexp-match, etc. to work on port inputs
|
|
Added read-strng-avail!* and write-string-avail*, which never block
|
|
Added peek-string, peek-string-avail!, peek-string-avail!*,
|
|
and peek-string-avail!/enable-break
|
|
Added port-count-lines!, which enables line-couting for a port,
|
|
and port-next-location
|
|
Extended custom ports to support non-char input, added
|
|
read-char-or-special and peek-char-or-special
|
|
Added immutable?
|
|
Quoted portions of a symbol (using | or \) preserve their case,
|
|
Added read-dot-as-symbol and read-accept-quasiquote parameters
|
|
Added an optional third argument to tcp-listen to reuse addresses
|
|
Added tcp-connect/enable-break and tcp-accept/enable-break
|
|
Added object-wait-multiple and object-wait-multiple/enable-break
|
|
Added cons-immutable, list-immutable, and list*-immutable,
|
|
and removed pair->immutable-pair
|
|
Replaced read-dot-as-symbol with read-accept-dot
|
|
Fixed quotient, remainder, and modulo when the first argument
|
|
is exact 0 and the second argument is inexact
|
|
Default for pconvert.ss's whole/fractional-exact-numbers parameter
|
|
changed to #f
|
|
Load handler or load extension handler now takes two arguments
|
|
instead of one: the filename and the expected module name
|
|
Added shell-execute for Windows
|
|
Moved send-event to MrEd; added a "sendevent.ss" MzLib library
|
|
Changed assf in MzLib
|
|
Added special handling when MzScheme is invoked with the name
|
|
"scheme-<dialect>", useful to support SRFI-22
|
|
New implementation of Windows I/O
|
|
Renamed "2k" to "3m" (for "moving memory manager")
|
|
Upgraded to gc 6.1alpha2
|
|
Inside MzScheme: changed type of third argument for
|
|
scheme_block_until() from void* to Scheme_Object*
|
|
Inside MzScheme: added scheme_add_waitable() and
|
|
scheme_add_waitable_through_sema() for extending the set of objects
|
|
supported by object-wait-multiple
|
|
|
|
Version 103, August 28, 2000
|
|
Changed define-values and set!-values to require distinct variables
|
|
for binding
|
|
Windows: Fixed bug in close-output-port for TCP ports
|
|
Closing a TCP output port always sends an EOF to the other
|
|
end of the connection, even if the associated input port
|
|
remains open
|
|
Changed order of first two arguments to process[*]/ports and
|
|
fixed bugs
|
|
Added an optional limit argument to make-pipe
|
|
Added deflate.ss library to MzLib, providing gzip, etc.
|
|
Added not-break-exn?, useful mainly as a predicate in a
|
|
with-handlers expressions
|
|
Fixed load/use-compiled, require-library, and many MzLib functions to
|
|
propagate break exceptions correctly
|
|
Added check-parameter-procedure and changed parameterize
|
|
Changed order of first two arguments to process[*]/ports, and
|
|
fixed bugs
|
|
Fixed bugs in (eval (compile e))
|
|
Changed handling of pre- and post-queued breaks by
|
|
call-in-nested-thread
|
|
Unix: fixed interaction among signals, I/O, and process sleeping
|
|
Unix: fixed bug in writing/closing file-stream output ports
|
|
when a write error occurs
|
|
MacOS: changed `split-path' to preserve the colon suffix on a root
|
|
name
|
|
|
|
Version 102, June 26, 2000
|
|
Switched to configure-based makefiles (autoconf)
|
|
with-input-from-file and with-output-to-file close the port when
|
|
control leaves the dynamic extent of the call (normally, through an
|
|
exception, or through a general continuation jump).
|
|
Added detail field to exn:i/o:filesystem
|
|
Added immutable strings and pairs, string->immutable-string,
|
|
cons-immutable, list-immutable, and list*-immutable
|
|
Added read-decimal-as-inexact parameter
|
|
Fixed number reader to allow +inf.0, -inf.0, and +nan.0 in
|
|
complex constants
|
|
Fixed bugs in number reader for hexadecimal numbers containing `.'
|
|
and/or `s'/`l'-based exponents; note that `#e#x+e.s+e@-e.l-e'
|
|
is a legal number(!)
|
|
Fixed reading from special devices, such as /dev/null and /dev/zero,
|
|
in Solaris and HP/UX
|
|
Fixed blocking output (to stdout, stderr, or a process port) so that
|
|
only the writing thread is blocked
|
|
Changed read-string! to read-string-avail!, added
|
|
read-string-avail!/enable-break
|
|
Added write-string-avail and write-string-avail/enable-break
|
|
Added process/ports and process*/ports
|
|
Added file-stream-port?
|
|
Added 'update to the set of flags for open-output-file et al.
|
|
Changed default exit handler to return only results in 0 to 255
|
|
as results to the OS, and everything else means 1
|
|
Changed time-apply to return four values, and to take an argument
|
|
list to provide to the timed procedure
|
|
Change find-executable-path to accept #f as its second argument
|
|
Change normal-case-path to remove spaces at the end of a path
|
|
Changed angle on inexact zero (0 for 0.0, pi for -0.0)
|
|
Fixed arithmetic-shift for a -32 shift
|
|
Fixed angle on +nan.0
|
|
Fixed expt on 0 and a negative number
|
|
Added 'exec-file flag to find-system-path
|
|
Added provide-library
|
|
Added square and mergesort to MzLib's function.ss
|
|
Added tcp-addresses
|
|
Added -k command-line flag
|
|
Inside MzScheme: provided a way to fix the GC--thread problems
|
|
under Windows, via GC_use_registered_statics
|
|
Inside MzScheme: scheme_basic_env() initializes break-enabled
|
|
to #f instead of #t
|
|
Inside MzScheme: changed scheme_get_chars to consume an
|
|
offset into the string
|
|
Inside MzScheme: added embedding-settable function
|
|
scheme_console_output, used to report low-level errors
|
|
Inside MzScheme: restricted the format strings accepted by
|
|
scheme_signal_error, scheme_raise_exn, and scheme_warning
|
|
Inside MzScheme: added scheme_count_lines; scheme_tell_line
|
|
can return -1 if lines are not counted for a port
|
|
Inside MzScheme: added offset argument to scheme_write_string
|
|
and scheme_read_bignum
|
|
|
|
Version 101, October 25, 1999
|
|
Added 'sys-dir to find-system-path
|
|
Added latin-1-integer->char and char->latin-1-integer
|
|
Added time-zone-offset field to the date structure
|
|
Added continuation field to exn:misc:user-break
|
|
Windows: all network sockets are closed on exit
|
|
Fixed (acos 0)
|
|
Fixed (expt x y) where x is negative and y is non-integral
|
|
Inside MzScheme: scheme_param_config's 2nd argument is
|
|
now a Scheme_Object*
|
|
|
|
Version 100, August 9, 1999
|
|
+ indicates a change since 100alpha4
|
|
* indicates a change since 100alpha3
|
|
Changed class syntax, splitting public clause use into:
|
|
public : defines ivars not in superclass
|
|
override : defines ivars already in superclass
|
|
Changed empty superclass from the empty list to object%;
|
|
every class initialization must call super-init
|
|
Added ivar-in-interface?
|
|
+ Added class-initialization-arity
|
|
* Added class->interface
|
|
* Added object-interface
|
|
+ Removed object-class
|
|
+ Removed ivar-in-class?; replace (ivar-in-class? x c)
|
|
with (ivar-in-interface? (class->interface x c))
|
|
Changed interface: raises an exception if a superinterface
|
|
declares a variable that is also declared in the interface
|
|
expression
|
|
Removed letrec*; letrec has the same semantics
|
|
* Fixed scope of function name in a named let
|
|
Internal definitions are allowed only at the beginning of lambda,
|
|
case-lambda, let, let-values, let*, let*-values,
|
|
letrec, letrec-values, fluid-let, let-macro, let-id-macro,
|
|
let-expansion-time, parameterize, and with-handlers
|
|
begin expressions are flattened in an internal-definition context
|
|
(begin) allowed in a top-level, unit, or internal-definition
|
|
context
|
|
Removed invoke-open-unit; see the new invoke.ss library, which
|
|
includes define-values/invoke-unit
|
|
Self-import is now allowed for unit linking
|
|
Removed constant-name and constant-name-all-globals
|
|
Removed secure-primitive-exception-types
|
|
Removed readable type symbols (e.g., #<procedure>)
|
|
Removed semaphore-callback (MrEd now has queue-callback)
|
|
Removed parameterizations (but not parameters!)
|
|
parameterize sets parameter values in parallel (like let)
|
|
instead of in series (like let*)
|
|
* Changed the initialization of the exception handler in a new
|
|
thread to use the value of the initial-exception-handler
|
|
parameter
|
|
Fixed unfairness in threads (perpetually creating threads
|
|
would starve certain threads, particularly the main thread)
|
|
Unreachable thread blocked on an unreachable semaphore is
|
|
garbage-collectable
|
|
Added current-memory-use
|
|
Fixed weak hash table bug (could drop keys too soon)
|
|
Added optional peek-proc argument to make-input-port
|
|
Changed TCP writes to block when the underlying implementation
|
|
blocks, and removed tcp-port-send-waiting?
|
|
Asynchronous breaks are now disabled during dynamic-wind
|
|
pre and post thunks
|
|
Removed user-break-poll-handler; spawn a thread that sleeps and
|
|
calls break-thread, instead
|
|
Removed dynamic-enable-break (no long needed since dynamic-wind
|
|
post thunks can't be broken), but moved it to MzLib's thread.ss
|
|
Removed execption-break-enabled (now always disabled)
|
|
Added call-in-nested-thread
|
|
Removed thread-weight
|
|
Renamed the call-with-escaping-continution procedure to
|
|
call-with-escape-continution (call/ec is unchanged)
|
|
Finished with-continuation-mark and current-continuation-marks
|
|
and documented them; the errortrace poor man's debugger relies
|
|
on continuation marks; see plt/collects/errortrace/doc.txt
|
|
Removed debug-info-handler and replaced the debug-info field
|
|
with a continuation-marks field
|
|
Added raise-mismatch-error
|
|
MacOS: getenv and putenv work within MzScheme; if a file named
|
|
"Environment" resides in MzScheme's folder, it provides the
|
|
initial environment; see the documentation for details
|
|
MacOS: fixed TCP problems
|
|
Fixed read-write invariance for inexact (floating-point) numbers
|
|
Changed handling of inexact can complex numbers towards compliance
|
|
with Brad Lucier's proposal:
|
|
(* 0 x) = 0 for all x
|
|
(log 1) = 0, etc.
|
|
-0.0 and 0.0 are properly distinguished; (- 0.0) = -0.0, and
|
|
(/ (expt 2 400) -inf.0) = -0.0; (eqv? 0.0 -0.0) = #f even
|
|
though (= 0.0 -0.0) = #t
|
|
Complex numbers can have an inexact real/imaginary part with
|
|
an exact zero imaginary/real part; thus, 4.0 is different
|
|
from 4.0+0.0i, and 0+4.0i is different from 0.0+4.0i; note
|
|
that (sqrt -4.0) is 0+2.0i
|
|
Complex numbers can have a +nan.0 real/imaginary part with
|
|
an imaginary/real part that is not +nan.0
|
|
All zero-length vectors are eq
|
|
Vectors are written (but not displayed) using the Chez-style
|
|
#n(...) shorthand by default; added print-vector-length
|
|
parameter
|
|
* The value of a built-in procedure is eq across namespaces
|
|
Replaced require-library-use-compiled with use-compiled-file-kinds
|
|
Changed interface for wills: no current executor, register-will
|
|
-> will-register, will-executor-try -> will-try-execute, added
|
|
will-execute
|
|
MzLib cleanup:
|
|
Removed `@' suffix for embedded units in mzlib:core@ and mzlib@
|
|
Removed all c.ss libraries, plus constan[t].ss
|
|
Removed catch-errors and let-enumerate from macro.ss
|
|
Removed make-class and make-class* from compat.ss
|
|
Removed zsin, zcos, ztan, zasin, zacos, zatan, zlog, zexp,
|
|
and zsqrt from zmath.ss (MzScheme's built-ins do complex)
|
|
Moved from functio.ss to thread.ss: dynamic-disable-break,
|
|
make-single-threader
|
|
Removed from functio.ss: dynamic-wind/protect-break
|
|
Added to thread.ss: dynamic-enable-break
|
|
Moved MzLib's compat.ss out of the core
|
|
Removes all but the first two arguments to pretty-print (the
|
|
rest have parameters, which are more convenient anyway)
|
|
Changed require to reference-file in refer.ss
|
|
file.ss library: added make-directory*
|
|
pretty-print: default display string handler is now the default
|
|
port display handler instead of the display procedure
|
|
Ported to BeOS
|
|
Ported to OSKit
|
|
Ported to LinuxThreads, sortof; semaphore-waiting threads cannot
|
|
be broken or killed
|
|
Inside MzScheme: new built-in type: scheme_complex_izi_type
|
|
Inside MzScheme: changed scheme_eval_string to raise an exception
|
|
if the expression returns multiple values, and added
|
|
scheme_eval_string_multi
|
|
|
|
Version 53, July 25, 1998
|
|
Changed file-modify-seconds to file-or-directory-modify-seconds
|
|
Changed rename-file to rename-file-or-directory
|
|
Changed file procedures to return void on success and raise
|
|
and exception on failure: delete-file, rename-file-or-directory,
|
|
file-size, copy-file, make-directory, delete-directory
|
|
Changed the procedures file-or-directory-modify-seconds and
|
|
file-or-directory-permissions to raise an exception if the
|
|
file/directory does not exist
|
|
Changed current-drive to raise exn:misc:unsupported on platforms
|
|
other than Windows
|
|
Added find-system-path
|
|
Fixed expand-defmacro for initialization argument expressions
|
|
in a class*/names form
|
|
Fixed call/ec bug related to dynamic-wind (see !!! in
|
|
tests/basic.ss)
|
|
Fixed dynamic-wind bug: multiple levels of pre-thunks for a
|
|
jump into a continuation were evaluated in reverse order
|
|
Fixed atan: second argument is allowed to be an exact non-integer
|
|
Fixed equal?: comparisons on equivalent vectors or structs
|
|
with cycles no longer crash (until MzScheme runs out of memory)
|
|
Added make-temporary-file to MzLib's file.ss
|
|
Changed random and random-seed to use a parameter-specified
|
|
random number generator; the generator is initially
|
|
seeded with a number based on (current-milliseconds)
|
|
Removed the obsolete MzLib trigger library
|
|
Added with-continuation-mark and current-continuation-marks,
|
|
but these have not yet been documented because their
|
|
semanticses are not yet finalized
|
|
|
|
Version 52, May 25, 1998
|
|
R5RS non-compliance reduced to macros
|
|
Added scheme-report-environment, null-environment, and
|
|
interaction-environment
|
|
Changed reference-library, etc. to require-library
|
|
and changed require-library, etc. to require-library/proc
|
|
Changed uq-ivar and uq-make-gerenric to ivar/proc and
|
|
make-generic/proc
|
|
current-directory is now a parameter
|
|
Added simplify-path
|
|
Changed execute and execute* to exit via the exit handler
|
|
Top-level definitions are no longer allowed in the branches
|
|
of an if expression; consider replacing an expression like
|
|
(if ... (define x ...)) with
|
|
(if ... (global-defined-value 'x ...))
|
|
expand-defmacro now signals the same set of syntax errors
|
|
as compile and eval
|
|
local-expand-defmacro no longer expands define expressions
|
|
in a non-top-level context; to implement a macro that
|
|
detects define forms, use local-expand-body-expression
|
|
Fixed bug in (let/ec a (let/ec b (let/cc k ...))); calling
|
|
b then k then a would fail, jumping to b instead of a
|
|
Fixed read-eval-print loop when jumping to the continuation
|
|
of a previous eval and raising an exception there before
|
|
the evaluation finishes
|
|
regexp-replace and regexp-replace*: \$ ("\\$" in Scheme)
|
|
is now replaced by the empty string; this allows forms
|
|
like "\\0\\$3", which inserts the 1st submatch and "3"
|
|
Fixed a potential bug with continuations (although I never
|
|
saw it happen); they need to be marked by the GC with
|
|
interior pointer marking
|
|
Changed read-line to break lines only on #\newline by default;
|
|
new optional argument roughly parameterizes over the
|
|
line-breaking character(s)
|
|
Add read-string and read-string! for reading a block
|
|
of characters from a port
|
|
Changed MzLib's read-string and read-string-all to
|
|
read-from-string and read-from-string-all
|
|
Changed MzLib's with-semaphore to return the value returned
|
|
by the thunk.
|
|
Added the command-line macro to MzLib's cmdline.ss
|
|
Linux and FreeBSD: turned on support for using more
|
|
than 256 file descriptors
|
|
Inside MzScheme: current-directory, now a parameter, no
|
|
longer sets the current directory as managed by the OS
|
|
Inside MzScheme: scheme_split_pathname changed
|
|
Inside MzScheme: scheme_setcwd and scheme_getcwd renamed to
|
|
scheme_os_setcwd and scheme_os_getcwd; these set and get the
|
|
OS-managed cwd, but they have no effect on the current
|
|
directory seen by Scheme code
|
|
|
|
Version 51, March 25, 1998
|
|
Changed load/use-compiled: searches for .zo files in
|
|
a "compiled/" subdirectory, and searches for .so/.dll
|
|
files in (build-path "compiled" (system-library-subpath))
|
|
Changed load and current-load/default-load-handler: `load'
|
|
now sets the current-load-relative-directory, so a load
|
|
handler does not need to set this parameter
|
|
Added current-load-extension (load-extension handler)
|
|
Unix: fixed file-or-directory-permissions for group-based
|
|
permissions when the group is not the current group (but
|
|
still includes the user)
|
|
Windows: fixed directory-exists? et al. for UNC paths
|
|
Added local-expand-body-expression
|
|
Removed input-port-post-semaphore; this procedure can be
|
|
implemented using thread, peek-char, and semaphore-post
|
|
Fixed thread: thunk can return any number of values
|
|
Fixed custodian-shutdown-all: if it has to shutdown the
|
|
current thread, it does so immediately instead of
|
|
waiting for the next thread context switch
|
|
Fixed will executors: will can return multiple values
|
|
Added link-exists?
|
|
Added copy-file
|
|
Added path-list-string->path-list
|
|
Added collection-path
|
|
The delete-file and rename-file functions now reliably work
|
|
on links rather than the destination of the link (now fixed
|
|
for MacOS and documented this way)
|
|
Fixed rename-file: works for directories too, but the
|
|
destination file/directory cannot exist already.
|
|
Added a new mode flag for open-output-file et al.:
|
|
'truncate/replace tries 'truncate then 'replace
|
|
Changed initial setting of current-library-collection-paths
|
|
Unit definitions and embedded definitions are not allowed
|
|
to shadow syntax or macro names; this restriction resolves
|
|
all potential ambiguity resulting from shadowing syntax
|
|
Changed display for symbols containg special characters:
|
|
the special characters are not escaped (or bar-quoted)
|
|
Changed write to use the value of (read-accept-bar-quote)
|
|
for printing symbols containing special charaters; if
|
|
bar qute reading is off, it is turned off for printing, too
|
|
Fixed unit/sig: correctly handles syntax where defintions in
|
|
the unit shadow syntactic forms
|
|
Fixed round of exact rational n/d in the case when (odd? d)
|
|
and (= (remainder n d) (quotient d 2))
|
|
Extended exp, sin, cos, tan, log, asin, acons, atan to
|
|
complex numbers; changed sqrt to choose the root with a
|
|
positive real part
|
|
Removed rectangular <, >, <=, >= for complex numbers
|
|
Changed storage of loaded-library table from built into the
|
|
`require-library' procedure to built into the current
|
|
namespace
|
|
Added require-relative-library
|
|
Fixed error messages for +, -, etc. to show all arguments
|
|
Fixed format, fprintf, and printf: "~~" allowed at the end
|
|
of the format string
|
|
Fixed with-handlers: predicate procedures are evaluated
|
|
with the same exception handler as a handler procedure
|
|
Added send-event, currently only supported for MacOS
|
|
Changed MzLib's pconver.ss libraries; the print-convert-hook@
|
|
unit was removed (along with the pchookr.ss library) and
|
|
replaced with parameters defined in pconverr.ss for similar
|
|
(more powerful) hooks.
|
|
Fixed interfaces for compiled-file (.zo) loading across
|
|
MzScheme startups
|
|
Fixed bug in ports returned by make-pipe that caused
|
|
spurious eofs
|
|
Unused interned symbols are now garbage-collected
|
|
Added support for single-precision floating points (turned
|
|
off in default compilation)
|
|
Changed read-eval-print-loop, removing its cooperation with
|
|
the default error escape handler; instead, it installs its
|
|
own error escape handler
|
|
Improved the support for dynamic extensions that gives an
|
|
error if an extension is already loaded, or calls a
|
|
reloading function provided by the extension (scheme_reload)
|
|
Unix images: removed constraint against using stdio before
|
|
dumps, but images are disabled by default. Also added
|
|
read-image-from-file procedure
|
|
MzLib functio.ss: added remv*, remq*, remove*, filter,
|
|
assf, memf, empty, and empty?
|
|
MzLib file.ss: added remove-directory/files
|
|
MzLib constan.ss: added constant-signature-content macro
|
|
MzLib pconver.ss: added whole/fractional-exact-numbers and
|
|
empty-list-name
|
|
MzLib pretty.ss: added pretty-print-show-inexactness
|
|
MzLib compile.ss: changed the set of compilation flags
|
|
Removed begin-expansion-time
|
|
Moved begin-elaboration-time from MzLib into MzScheme
|
|
Added MzLib library traceld.ss
|
|
MacOS: MzScheme always prompts for extra arguments, even if
|
|
a file is dragged onto the application or a launcher program
|
|
starts it
|
|
MacOS: Fixed problems with inexact arithmetic: inexact->exact
|
|
for certain negative numbers and miscellaenous inf.0 and
|
|
nan.0 problems
|
|
Windows: CYGWIN32 gcc compiler now supported
|
|
Inside MzScheme: scheme_setjmp and scheme_longjmp now
|
|
work on values of type mz_jmp_buf instead of jmp_buf
|
|
Inside MzScheme: scheme_apply_multi and scheme_apply were
|
|
reversed! (The _ forms where ok.)
|
|
Upgraded to gc 4.13alpha1
|
|
|
|
Version 50, August 26, 1997
|
|
Added compile-time inferrence of names for closures, classes,
|
|
and units to improve error messages
|
|
Added inferred-name
|
|
Added file-size
|
|
Added write-image-to-file for creating heap images of a
|
|
MzScheme program
|
|
Fixed reader to disallow . in vectors: #(1 . 2) or #(1 . (3))
|
|
Removed global-defined-signature
|
|
Fixed string->number: explicit radix in string can override
|
|
radix argument
|
|
Bug fixed in call/cc related to dynamic-wind (see !!! in
|
|
tests/basic.ss)
|
|
Fixed weak hash table's accumulation of hashing buckets
|
|
Added 'empty flag for make-namespace
|
|
Added two-argument form for global-defined-value
|
|
Added system-library-subpath
|
|
Changed standalone mzscheme to return -1 if a loaded file
|
|
or evaluated expression returns an error without the rep
|
|
Refined error messages
|
|
|
|
Version 49, May 31, 1997
|
|
Multiple superclass inheritance is no longer supported
|
|
Added (Java-ish) interfaces to object system
|
|
class* syntax changed to accommodate interfaces and removed
|
|
multiple superclasses
|
|
uq-ivar always takes two arguments; class is not a legal argument
|
|
uq-make-generic accepts a class or an interface
|
|
Object system exceptions changed
|
|
Added custodian system
|
|
Embedded define conventions changed: "regular" defines are only
|
|
allowed in begin expressions and the branches of an if;
|
|
embedded defines can appear in a begin0 expression, but not
|
|
in the first position; defines must all appear at the beginning
|
|
of the block
|
|
Contents of a begin expression as an immediate unit or unit/sig
|
|
expression are promoted to immediate expressions
|
|
case supports only R4RS syntax; a single non-list "datum" is
|
|
no longer allowed
|
|
Removed catch; use let/ec instead
|
|
Removed vector-append
|
|
Removed load-with-cd (use load/cd)
|
|
Added load/use-compiled
|
|
Added current-load-directory parameter (set by the default load
|
|
handler while loading a file) and load-relative (uses the
|
|
parameter for loading a relative filename)
|
|
unit/sig's include form is like load-relative instead of load/cd
|
|
require-library uses load or load/use-compiled instead of load/cd
|
|
Windows: expand-path does not put a drive on a driveless path
|
|
anymore; use path->complete-path instead
|
|
compile-file moved out of MzScheme into MzLib "compile.ss"; now
|
|
takes a single flag list argument instead of two final Booleans
|
|
current-base-parameterization parameter replaced with
|
|
parameterization-branch-handler parameter
|
|
Parameterizations support sharing (in addition to defaulting);
|
|
see docs for make-parameterization-with-sharing
|
|
Added print, port print handlers, and a global port print handler
|
|
Changed the default print handler to use print instead of write
|
|
Fixed bug in ports returned by make-pipe
|
|
Fixed bug in dynamic-wind; continuation jumps into the pre-thunk
|
|
had a non-intuitive semantics; the correct semantics is now
|
|
implemented and documented (also for jumps with the post-thunk)
|
|
Changed time-apply to always return a list as its first return
|
|
value; time form can return multiple values for its expressions
|
|
format, fprintf, and printf are case-insensitive for ~ directives;
|
|
added ~v, ~e, ~<whitespace>
|
|
Added semaphore-wait/enable-break
|
|
Added thread-running? and thread-wait
|
|
Fixed bug in threads and timed sleeping
|
|
Fixed bug in breaking a blocked thread
|
|
Fixed bug in continuations returning multiple values through a
|
|
dynamic-wind (multiple return values could be corrupted)
|
|
Fixed arity reporting for continuations
|
|
Fixed Windows system* and read from console stdin and process*
|
|
ports: MzScheme threads no longer blocked; ctl-c breaking works
|
|
in stand-alone console MzScheme
|
|
process and process* now return a list of 5 values (instead of 4)
|
|
map, for-each, andmap, and ormap raise exn:application:map-arity
|
|
when the procedure's arity does not match the number of supplied
|
|
lists; note that (map (lambda () 10) null) now signals an error
|
|
list-ref and list-tail accept arbitrarily large indices
|
|
Type for indices changed: must be an exact integer (matches R4RS better)
|
|
affects make-vector, vector-ref, vector-set!, make-string, string-ref,
|
|
string-set!, substring, and struct-ref
|
|
make-namespace's '[no-]set!-undefined and '[no-]auto-else flags
|
|
removed; replaced with two new parameters:
|
|
compile-allow-set!-undefined and compile-allow-cond-fallthrough
|
|
Fixed in units: (define x y) (define y 0) x => #<undefined> instead of
|
|
#<void>
|
|
exn:struct's super-type field renamed struct-type for consistency
|
|
exn:i/o:filesystem:filename split into exn:i/o:filesystem:path
|
|
and exn:i/o:filesystem:file; username exception moved under path
|
|
Unix: system no longer blocks other MzScheme threads
|
|
Unix: processes created by process and process* are not zombies forever,
|
|
anymore. (The SIGCHLD signal is handled appropriately.)
|
|
MacOS: dynamic extension suopport via CFM (PPC only in the distributed
|
|
applications from PLT)
|
|
Windows: removed attempted fix for thread-blocking problem
|
|
when reading stdin from console
|
|
Fixed auto-flush of stdout for read of stdin
|
|
Fixed <, >, <=, >= for certain exact rational number comparisons
|
|
Fixed inexact->exact for negative inexact numbers (fractional part
|
|
was added to the resulting number with the wrong sign)
|
|
Fixed rational? to answer #t for inexact numbers
|
|
Fixed odd?, even?, and trig functions for +inf.0 and -inf.0
|
|
Fixed handling of +nan.0 by many math routines; fixed +nan.0 for
|
|
everything under Windows
|
|
Added R4RS rationalize
|
|
compound-unit/sig export var clause syntax now matches documentation
|
|
Added require-library-use-zo
|
|
Moved cons? and last-pair into functio.ss instead of compat.ss
|
|
Library system generalized to supoprt multiple collections;
|
|
current-library-path replaced with current-library-collection-path
|
|
require-library now returns the result of the loaded library
|
|
Removed load-recent from MzLib's file.ss; use load/use-compiled
|
|
instead
|
|
Added reference-library, "refer.ss" [core], "XXXr.ss" MzLib libraries
|
|
Added build-string, build-vector, build-list, loop-until to MzLib's
|
|
functio.ss
|
|
Added thread.ss MzLib library [core]
|
|
Added inflate.ss MzLib library
|
|
Moved synrule.ss out of core
|
|
Fixed MzLib's stringu.ss to not use macro.ss
|
|
Updated MzLib's spidey.ss, added it to core
|
|
Removed define-some, define-virtual-struct, define-struct-tree from
|
|
MzLib's macro.ss
|
|
begin-expansion-time returns the value of the last expression
|
|
set-thread-weight! replaced with 2-argument thread-weight
|
|
Inside MzScheme: changed class/object toolbox, added custodian
|
|
toolbox
|
|
Upgraded to gc 4.11
|
|
|
|
Version 48: Skipped to avoid confusion with Scheme48
|
|
|
|
Version 47, January 11, 1997
|
|
WARNING: multiple inhertance is going away in the next version or so
|
|
Added will executors
|
|
pretty-print-print-hook and pretty-print-size-hook now take
|
|
three arguments: value display? port
|
|
file-position can return the current position for any port
|
|
Fixed errors reading floating-point constants due to system
|
|
library bugs:
|
|
Linux: strtod("0e...", ...) quits looking after "0"
|
|
SunOS/Solaris: strtod(".3e2666666666") returned 0.0
|
|
HP/UX: strtod(".3e2666666666") fails
|
|
Windows: fixed thread-blocking problem for reading stdin from console
|
|
Insize MzScheme: when working with "fd_set" values, use
|
|
MZ_FD_ZERO, MZ_FD_SET, MZ_FD_CLR, MZ_FD_ISSET; use
|
|
scheme_get_fdset() to get the second or third fd_set in an array;
|
|
routines for thread-blocking are now documented in "Inside MzScheme"
|
|
|
|
Version 46, December 5, 1996
|
|
unit/sig macros moved out of MzLib and into core MzScheme;
|
|
(require-library "unitsig.ss") is obsolete, but still supported
|
|
as a no-op
|
|
Unit signature matching is now position-independent, and the error
|
|
messages are better
|
|
Removed obsolete install-unit-with-signature
|
|
(begin) or (begin0) is now a syntax error
|
|
Changed class* syntax so that an explicit name for `this' is provided
|
|
MzLib's class-asi* changed to class*-asi, while adding new `this' id
|
|
Prettier(?) printing for prims like >: #<|primitive:>|>
|
|
invoke-open-unit w/o path/prefix is now the same as #f instead of ();
|
|
the path form will probably be phased out in a future release
|
|
quasiquote syntax changed slightly
|
|
stdout/stderr are not auto-flushed for read-char or peek-char on stdin
|
|
(still flushed by read and read-line)
|
|
Added port-display-handler and port-write-handler
|
|
|
|
Version 45, November 12, 1996
|
|
Multiple return values are aggressively supported
|
|
IMPORTANT: let-values is now analogous to let; the old
|
|
let-values is now let*-values
|
|
let-values, letrec-values, define-values, and begin0 are primitive
|
|
define-struct and let-struct expand to new struct form
|
|
Added thread-savy parameterization system; namespace system changed
|
|
pipe changed to make-pipe, returns 2 values
|
|
Case-sensitivity for the reader is a settable parameter
|
|
Reading [] and {} as parens is a settable parameter
|
|
class* syntax extended to allow local renaming of public ivars
|
|
delay/force support multiple values
|
|
else and => in cond and else are now "scoped"
|
|
normalize-path from MzLib signals an error for bad paths
|
|
Windows: build-path can join a drive to a (driveless) absolute path
|
|
and //machine/disk drive names are supported; also fixed
|
|
file-system-root-list
|
|
Added complete-path? and current-drive (for Windows)
|
|
Fixed (begin (values ...) ...) and (begin0 (values ...) ...)
|
|
Fixed comparisons between inexact and exact when the
|
|
exact to inexact conversion results in overflow or underflow,
|
|
and fixed (exact->inexact (/ X Y)) and (/ +inf.0 X), etc. when
|
|
X & Y are larger than the largest floating-point, fixed modulo,
|
|
remainder, quotient for infinities
|
|
Fixed TCP problems (Unix, Windows) and implemented for MacOS
|
|
Fixed dynamic-loading to always search from current directory
|
|
Fixed real process idling for a timed sleep
|
|
Fixed file read/write exceptions (write exceptions now raised)
|
|
Fixed quasiquote bug with ,@ and unquoting depth
|
|
Fixed filesystem-root-list for Windows
|
|
Fixed dynamic-wind when a continuation is invoked from the post-thunk
|
|
Fixed continuations for re-entry of a continuation that is mulitply-invoked
|
|
Fixed string->number with leading spaces; e.g., (string->number " 1")
|
|
invoke-unit import variable restriction removed (locals are allowed)
|
|
(case-lambda) is now legal
|
|
\ escapes & and \ in regexp-replace replacement string
|
|
Added regexp-replace*
|
|
Added port-read-handler
|
|
Inside MzScheme: Changed use of scheme_sleep
|
|
Inside MzScheme: Changed primitive unit init func arguments
|
|
Inside MzScheme: Changed primitive accessing of unit boxes and environment boxes
|
|
Inside MzScheme: Revoked syntax extensibility
|
|
Reimplemented the core interpreter (chained closures -> flattened)
|
|
|
|
Version 44, September 9, 1996
|
|
load, load/cd return value of last loaded expression
|
|
scheme_load returns Scheme_Object* or NULL
|
|
Built-in TCP support (Not MacOS, yet)
|
|
unit clauses macro-expanded before checking `define' keywords
|
|
Better dynamic extension handling and compilation support
|
|
Fixed read blocking threads in FreeBSD
|
|
Extensions' scheme_initialize must return Scheme_Object*
|
|
scheme_sleep has internal default for basic sleeping, installed by
|
|
scheme_basic_env if scheme_sleep is still NULL
|
|
Unix/Winsock: fds arg for needs_wakeup and scheme_sleep expanded
|
|
for writes and exceptions
|
|
Fixed quotient for inexact numbers
|
|
Fixed bug comparing a bignum rational with a fixnum rational
|
|
Fixed startup crash when PATH env variable is slightly bad
|
|
Sped up thread switching for Mac
|
|
Sped up thread switching for most Unix for a small number of threads
|
|
Upgraded to gc 11alpha3
|
|
|
|
Version 43 re-released August 12, 1996 with libguile
|
|
|
|
Version 43, August 9, 1996
|
|
"functor" -> "unit"
|
|
signed units added to and used by mzlib (sigfunctors gone)
|
|
Made .zo files smaller and faster to load
|
|
Use 64-bit fixnums for Alpha
|
|
system, system*, process*, and execute* supported for Windows
|
|
Fixed memory bug in printing hexadecimal
|
|
Fix bug in modulo
|
|
Better floating-point control for infinity, nan results
|
|
on many platforms
|
|
|
|
Version 42: June 8, 1996
|
|
Functor system added
|
|
Fixed (cond (1)), etc.
|
|
Fixed type-checking for numerical comparisons; e.g., (< 2 1 'a)
|
|
Fixed dynamic-wind and call/ec for values
|
|
Fixed read for strings containing #\nul
|
|
Non-matching cond/case raises an error
|
|
Made string=?, char=?, etc. multi-arity like numerical =, etc.
|
|
Changed definition of time-apply (returns values, now)
|
|
MzScheme threads can almost be real OS threads under Solaris, but more work
|
|
is needed to guarantee safety for the symbol table and globals. More thread
|
|
systems to follow.
|
|
spawn-eval replaced by make-eval
|
|
thread-input-port, thread-output-port, and thread-error-port removed
|
|
binary-and, etc. replaced with 2's complement bitwise-and, etc.
|
|
Fixed writing compiled quoted graph expressions
|
|
Fixed return value of system
|
|
test.scm expanded and broken into multiple files: (load/cd "tests/all.ss")
|
|
|
|
Version 0.41: April 15, 1996
|
|
Revised class syntax; see the manual
|
|
Exception system added; primitive errors raise exceptions
|
|
defmacro replaced by define-macro
|
|
Added define-id-macro
|
|
Fixed let-macro shadowing local vars
|
|
Improved error messages; error-print-width
|
|
Fixed stack checking for Win32
|
|
'. no longer allowed
|
|
unquote and unquote-splicing now defined at top level
|
|
equal? supports boxes
|
|
|
|
Version 0.40: March 24, 1996
|
|
structure:X => struct:x
|
|
mzlib path uses MZLIB or PLTHOME environment variables
|
|
|
|
Version 0.39: March 6, 1996
|
|
Fixed expand-defmacro for (lambda () (and)) et al.
|
|
Fixed sqrt on complex numbers; coefficients were reversed
|
|
Cleaned up read and display/write to handle C stack overflow
|
|
Arity checking bug fixed for arity 0
|
|
Pretty-print is parameterized by depth
|
|
|
|
Version 0.38: February 22, 1996
|
|
Fixed bug in compiling frame-sharing; e.g.,
|
|
(let ([d 0]) ((car (cons (let ([a 4]) (lambda () a))
|
|
(let ([b 7]) b)))))
|
|
returned 7 instead of 4
|
|
Fixed bug in closing port by call-with-input-file
|
|
Fixed magnitude on negative reals
|
|
Fixed angle on negative reals
|
|
Fixed cos, sin, etc. on rationals
|
|
Fixed min and max on rationals with non-rationals
|
|
Fixed (random 0)
|
|
Fixed equal? on really long lists
|
|
Fixed list procedures with arbitrary duration: checking for break
|
|
Fixed char-X? and characters past ASCII 127
|
|
Fixed hash table bug that causes infinite internal loop
|
|
Fixed bug in reading #| |# comments at the end of a list
|
|
Filesystem utilities added
|
|
"processes" are now called "threads"; procedure names changed accordingly
|
|
eval can return multiple values; r-e-p-l handles correctly
|
|
Some changes to compilation interface:
|
|
must set new flag is_proc_closure in compile_info rec
|
|
scheme_static_distance changed; use flags
|
|
scheme_sleep() must now take a float
|
|
current-prompt-read added
|
|
Console version reads ~/.mzschemerc init file (or mzscheme.rc)
|
|
NO_STAT compilation flag -> NO_STAT_PROC
|
|
|
|
Version 0.37: unreleased
|
|
|
|
Version 0.36: January 18, 1996
|
|
Fixed bug in bignum multiplication
|
|
|
|
Version 0.35: January 17, 1996
|
|
current-print added
|
|
x@y notation supported
|
|
~ expanded in pathnames (Unix)
|
|
Fixed bug parsing #T, etc.
|
|
Fixed bug parsing hex numbers and others
|
|
Fixed fp-initialization bug for Win32
|
|
Better printing for special symbols
|
|
|
|
Version 0.34: December 30, 1995
|
|
Various bignum operations sped up
|
|
Chez-style symbol parsing supported (escaping \ and quoting |)
|
|
|
|
Version 0.33: December 21, 1995
|
|
rationals and complex numbers supported
|
|
make-class and make-class* syntax changed (one set of parens
|
|
added). The old syntax is still supported for now, but you
|
|
should convert. The old syntax will eventually go away (and
|
|
Zodiac will never be compatible with it).
|
|
class variables and cvar no longer allowed
|
|
ivar always takes an object; if class included, must be first
|
|
threads/processes changed w.r.t. environment used during execution
|
|
error handler split into erro displayer and error escaper
|
|
stack limitation of expander/compiler removed
|
|
expand => expand-defmacro
|
|
expand-once => expand-defmacro-once
|
|
user-break-poll => user-break-poll-handler
|
|
enable-break => break-enabled
|
|
#% now legal for starting non-keyword symbols
|
|
full floating-point input format supported
|
|
|
|
Version 0.32: December 4, 1995
|
|
Added weak boxes
|
|
+inf.0, -inf.0, -nan.0, +nan.0 constants added
|
|
Better checking when using floats as indices (vector-ref, etc.)
|
|
Better (correct!) hashing procedure
|
|
Fixed threads in Win32s/WinNT by creating a new stack
|
|
Fixed bug in spawning new (MzScheme) processes
|
|
Fixed incorrect process progress (~deadlock) analysis
|
|
Fixed bug in resizing hash table
|
|
Fixed bug in read (reading "+", "-", or "." at EOF)
|
|
Fixed bug in read-number (fractions and forcing; e.g. "../")
|
|
Fixed bug in open-output-string (> 100 chars gave empty result)
|
|
Fixed regexp-replace (memory bug)
|
|
|
|
Version 0.31: November 14, 1995
|
|
Bignum bigs: subtracting from 0, comparing negative
|
|
(current-eval) initially returned the wrong procedure
|
|
tan procedure added
|
|
putenv
|
|
S-expression graph reading and printing
|
|
|
|
Version 0.30: October 25, 1995
|
|
Added call-with-values and regexp
|
|
Unix stack-checking setup code fixed
|
|
|
|
Version 0.29: October 18, 1995
|
|
Added `arity' procedure
|
|
Bug fix related to forms such as (let ([x (let ...)]) ...)
|
|
|
|
Verion 0.28: October 3, 1995
|
|
Fixed general stack overflow-checking for Unix
|
|
|
|
Verion 0.27: September 26, 1995
|
|
Moved compilation flags from the Makefile into "sconfig.h"
|
|
More general stack overflow-checking (when needed)
|
|
Computations can overflow the stack and continue
|
|
Changed command line flags; added -r (or --script) flag
|
|
Added multiple inheritance and `rename', `share', and `local' declarations
|
|
Merged Patrick Barta's Windows DLL implementation for `load-extention'
|
|
Re-implemented `quasiquote', `and', and `or' as a macros
|
|
Re-implemented let-forms to make small `let's efficient
|
|
`let*' expands to `let'
|
|
Made core syntactic form names keywords
|
|
Added #% keywords
|
|
Added `hash-table-map' and `hash-table-for-each'
|
|
Fixed bignum bugs: `eqv?'/`equal?' and `modulo'
|
|
Fixed inexact bugs: `floor', `ceiling', and `round'
|
|
Created this "HISTORY" file
|