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Jim Blandy 1997-05-16 08:05:22 +00:00
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673
NEWS
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@ -19,6 +19,9 @@ guile-rgx-ctax --- the interface between Guile and the Rx regular
programming language. These are packaged together because the
Ctax translator uses Rx to parse Ctax source code.
This NEWS file describes the changes made to guile-core since the 1.0
release.
We no longer distribute the documentation, since it was either out of
date, or incomplete. As soon as we have current documentation, we
will distribute it.
@ -74,6 +77,66 @@ with the arguments given to the script. Guile loads the script, which
defines the `main' function, and then applies it to the list of
remaining command-line arguments, ("a" "speckled" "gecko").
In Unix, the first line of a script file must take the following form:
#!INTERPRETER ARGUMENT
where INTERPRETER is the absolute filename of the interpreter
executable, and ARGUMENT is a single command-line argument to pass to
the interpreter.
You may only pass one argument to the interpreter, and its length is
limited. These restrictions can be annoying to work around, so Guile
provides a general mechanism (borrowed from, and compatible with,
SCSH) for circumventing them.
If the ARGUMENT in a Guile script is a single backslash character,
`\', Guile will open the script file, parse arguments from its second
and subsequent lines, and replace the `\' with them. So, for example,
here is another implementation of the `ekko' script:
#!/usr/local/bin/guile \
-e main -s
!#
(define (main args)
(for-each (lambda (arg) (display arg) (display " "))
(cdr args))
(newline))
If the user invokes this script as follows:
ekko a speckled gecko
Unix expands this into
/usr/local/bin/guile \ ekko a speckled gecko
When Guile sees the `\' argument, it replaces it with the arguments
read from the second line of the script, producing:
/usr/local/bin/guile -e main -s ekko a speckled gecko
This tells Guile to load the `ekko' script, and apply the function
`main' to the argument list ("a" "speckled" "gecko").
Here is how Guile parses the command-line arguments:
- Each space character terminates an argument. This means that two
spaces in a row introduce an empty-string argument.
- The tab character is not permitted (unless you quote it with the
backslash character, as described below), to avoid confusion.
- The newline character terminates the sequence of arguments, and will
also terminate a final non-empty argument. (However, a newline
following a space will not introduce a final empty-string argument;
it only terminates the argument list.)
- The backslash character is the escape character. It escapes
backslash, space, tab, and newline. The ANSI C escape sequences
like \n and \t are also supported. These produce argument
constituents; the two-character combination \n doesn't act like a
terminating newline. The escape sequence \NNN for exactly three
octal digits reads as the character whose ASCII code is NNN. As
above, characters produced this way are argument constituents.
Backslash followed by other characters is not allowed.
* Changes to the procedure for linking libguile with your programs
** Guile now builds and installs a shared guile library, if your
@ -100,41 +163,90 @@ AC_CHECK_LIB(guile, scm_shell)
* Changes to Scheme functions
** There are new accessors and setters for the broken-out time vectors
returned by `localtime', `gmtime', and that ilk. They are:
** Guile Scheme's special syntax for keyword objects is now optional,
and disabled by default.
Component Accessor Setter
========================= ============ ============
seconds tm:sec set-tm:sec
minutes tm:min set-tm:min
hours tm:hour set-tm:hour
day of the month tm:mday set-tm:mday
month tm:mon set-tm:mon
year tm:year set-tm:year
day of the week tm:wday set-tm:wday
day in the year tm:yday set-tm:yday
daylight saving time tm:isdst set-tm:isdst
GMT offset, seconds tm:gmtoff set-tm:gmtoff
name of time zone tm:zone set-tm:zone
The syntax variation from R4RS made it difficult to port some
interesting packages to Guile. The routines which accepted keyword
arguments (mostly in the module system) have been modified to also
accept symbols whose names begin with `:'.
** There are new accessors for the vectors returned by `uname'.
To change the keyword syntax, you must first import the (ice-9 debug)
module:
(use-modules (ice-9 debug))
Component Accessor
============================================== ================
name of the operating system implementation utsname:sysname
network name of this machine utsname:nodename
release level of the operating system utsname:release
version level of the operating system utsname:version
machine hardware platform utsname:machine
Then you can enable the keyword syntax as follows:
(read-set! keywords 'prefix)
** There is now a complete set of accessors for the vectors returned
by the `getserv'
To disable keyword syntax, do this:
(read-set! keywords #f)
** Many more primitive functions accept shared substrings as
arguments. In the past, these functions required normal, mutable
strings as arguments, although they never made use of this
restriction.
** The uniform array functions now operate on byte vectors. These
functions are `array-fill!', `serial-array-copy!', `array-copy!',
`serial-array-map', `array-map', `array-for-each', and
`array-index-map!'.
** The new functions `trace' and `untrace' implement simple debugging
support for Scheme functions.
The `trace' function accepts any number of procedures as arguments,
and tells the Guile interpreter to display each procedure's name and
arguments each time the procedure is invoked. When invoked with no
arguments, `trace' returns the list of procedures currently being
traced.
The `untrace' function accepts any number of procedures as arguments,
and tells the Guile interpreter not to trace them any more. When
invoked with no arguments, `untrace' untraces all curretly traced
procedures.
The tracing in Guile has an advantage over most other systems: we
don't create new procedure objects, but mark the procedure objects
themselves. This means that anonymous and internal procedures can be
traced.
** The function `assert-repl-prompt' has been renamed to
`set-repl-prompt!'. It takes one argument, PROMPT.
- If PROMPT is #f, the Guile read-eval-print loop will not prompt.
- If PROMPT is a string, we use it as a prompt.
- If PROMPT is a procedure accepting no arguments, we call it, and
display the result as a prompt.
- Otherwise, we display "> ".
** The new function `eval-string' reads Scheme expressions from a
string and evaluates them, returning the value of the last expression
in the string. If the string contains no expressions, it returns an
unspecified value.
** The new function `thunk?' returns true iff its argument is a
procedure of zero arguments.
** `defined?' is now a builtin function, instead of syntax. This
means that its argument should be quoted. It returns #t iff its
argument is bound in the current module.
** The new syntax `use-modules' allows you to add new modules to your
environment without re-typing a complete `define-module' form. It
accepts any number of module names as arguments, and imports their
public bindings into the current module.
** The new function (module-defined? NAME MODULE) returns true iff
NAME, a symbol, is defined in MODULE, a module object.
** The new function `builtin-bindings' creates and returns a hash
table containing copies of all the root module's bindings.
** The new function `builtin-weak-bindings' does the same as
`builtin-bindings', but creates a doubly-weak hash table.
** The `equal?' function now considers variable objects to be
equivalent if they have the same name and the same value.
** The new function `command-line' returns the command-line arguments
given to Guile, as a list of strings.
@ -152,8 +264,315 @@ but we thought it might also be useful in other circumstances.
** The new function `log10' returns the base-10 logarithm of its
argument.
** gethost, getproto, and getnet, and getserv now return more helpful
error codes.
** Changes to I/O functions
*** The functions `read', `primitive-load', `read-and-eval!', and
`primitive-load-path' no longer take optional arguments controlling
case insensitivity and a `#' parser.
Case sensitivity is now controlled by a read option called
`case-insensitive'. The user can add new `#' syntaxes with the
`read-hash-extend' function (see below).
*** The new function `read-hash-extend' allows the user to change the
syntax of Guile Scheme in a somewhat controlled way.
(read-hash-extend CHAR PROC)
When parsing S-expressions, if we read a `#' character followed by
the character CHAR, use PROC to parse an object from the stream.
If PROC is #f, remove any parsing procedure registered for CHAR.
The reader applies PROC to two arguments: CHAR and an input port.
*** The new functions read-delimited and read-delimited! provide a
general mechanism for doing delimited input on streams.
(read-delimited DELIMS [PORT HANDLE-DELIM])
Read until we encounter one of the characters in DELIMS (a string),
or end-of-file. PORT is the input port to read from; it defaults to
the current input port. The HANDLE-DELIM parameter determines how
the terminating character is handled; it should be one of the
following symbols:
'trim omit delimiter from result
'peek leave delimiter character in input stream
'concat append delimiter character to returned value
'split return a pair: (RESULT . TERMINATOR)
HANDLE-DELIM defaults to 'peek.
(read-delimited! DELIMS BUF [PORT HANDLE-DELIM START END])
A side-effecting variant of `read-delimited'.
The data is written into the string BUF at the indices in the
half-open interval [START, END); the default interval is the whole
string: START = 0 and END = (string-length BUF). The values of
START and END must specify a well-defined interval in BUF, i.e.
0 <= START <= END <= (string-length BUF).
It returns NBYTES, the number of bytes read. If the buffer filled
up without a delimiter character being found, it returns #f. If the
port is at EOF when the read starts, it returns the EOF object.
If an integer is returned (i.e., the read is successfully terminated
by reading a delimiter character), then the HANDLE-DELIM parameter
determines how to handle the terminating character. It is described
above, and defaults to 'peek.
(The descriptions of these functions were borrowed from the SCSH
manual, by Olin Shivers and Brian Carlstrom.)
*** The `%read-delimited!' function is the primitive used to implement
`read-delimited' and `read-delimited!'.
(%read-delimited! DELIMS BUF GOBBLE? [PORT START END])
This returns a pair of values: (TERMINATOR . NUM-READ).
- TERMINATOR describes why the read was terminated. If it is a
character or the eof object, then that is the value that terminated
the read. If it is #f, the function filled the buffer without finding
a delimiting character.
- NUM-READ is the number of characters read into BUF.
If the read is successfully terminated by reading a delimiter
character, then the gobble? parameter determines what to do with the
terminating character. If true, the character is removed from the
input stream; if false, the character is left in the input stream
where a subsequent read operation will retrieve it. In either case,
the character is also the first value returned by the procedure call.
(The descriptions of this function was borrowed from the SCSH manual,
by Olin Shivers and Brian Carlstrom.)
*** The `read-line' and `read-line!' functions have changed; they now
trim the terminator by default; previously they appended it to the
returned string. For the old behavior, use (read-line PORT 'concat).
*** The functions `uniform-array-read!' and `uniform-array-write!' now
take new optional START and END arguments, specifying the region of
the array to read and write.
*** The `ungetc-char-ready?' function has been removed.
** Changes to the Unix library and system call interface
*** The new fcntl function provides access to the Unix `fcntl' system
call.
(fcntl PORT COMMAND VALUE)
Apply COMMAND to PORT's file descriptor, with VALUE as an argument.
Values for COMMAND are:
F_DUPFD duplicate a file descriptor
F_GETFD read the descriptor's close-on-exec flag
F_SETFD set the descriptor's close-on-exec flag to VALUE
F_GETFL read the descriptor's flags, as set on open
F_SETFL set the descriptor's flags, as set on open to VALUE
F_GETOWN return the process ID of a socket's owner, for SIGIO
F_SETOWN set the process that owns a socket to VALUE, for SIGIO
FD_CLOEXEC not sure what this is
For details, see the documentation for the fcntl system call.
*** The arguments to `select' have changed, for compatibility with
SCSH. The TIMEOUT parameter may now be non-integral, yielding the
expected behavior. The MILLISECONDS parameter has been changed to
MICROSECONDS, to more closely resemble the underlying system call.
The RVEC, WVEC, and EVEC arguments can now be vectors; the type of the
corresponding return set will be the same.
*** The arguments to the `mknod' system call have changed. They are
now:
(mknod PATH TYPE PERMS DEV)
Create a new file (`node') in the file system. PATH is the name of
the file to create. TYPE is the kind of file to create; it should
be 'fifo, 'block-special, or 'char-special. PERMS specifies the
permission bits to give the newly created file. If TYPE is
'block-special or 'char-special, DEV specifies which device the
special file refers to; its interpretation depends on the kind of
special file being created.
*** The `fork' function has been renamed to `primitive-fork', to avoid
clashing with various SCSH forks.
*** The `recv' and `recvfrom' functions have been renamed to `recv!'
and `recvfrom!'. They no longer accept a size for a second argument;
you must pass a string to hold the received value. They no longer
return the buffer. Instead, `recv' returns the length of the message
received, and `recvfrom' returns a pair containing the packet's length
and originating address.
*** The file descriptor datatype has been removed, as have the
`read-fd', `write-fd', `close', `lseek', and `dup' functions.
We plan to replace these functions with a SCSH-compatible interface.
*** The `create' function has been removed; it's just a special case
of `open'.
*** There are new functions to break down process termination status
values. In the descriptions below, STATUS is a value returned by
`waitpid'.
(status:exit-val STATUS)
If the child process exited normally, this function returns the exit
code for the child process (i.e., the value passed to exit, or
returned from main). If the child process did not exit normally,
this function returns #f.
(status:stop-sig STATUS)
If the child process was suspended by a signal, this function
returns the signal that suspended the child. Otherwise, it returns
#f.
(status:term-sig STATUS)
If the child process terminated abnormally, this function returns
the signal that terminated the child. Otherwise, this function
returns false.
POSIX promises that exactly one of these functions will return true on
a valid STATUS value.
These functions are compatible with SCSH.
*** There are new accessors and setters for the broken-out time vectors
returned by `localtime', `gmtime', and that ilk. They are:
Component Accessor Setter
========================= ============ ============
seconds tm:sec set-tm:sec
minutes tm:min set-tm:min
hours tm:hour set-tm:hour
day of the month tm:mday set-tm:mday
month tm:mon set-tm:mon
year tm:year set-tm:year
day of the week tm:wday set-tm:wday
day in the year tm:yday set-tm:yday
daylight saving time tm:isdst set-tm:isdst
GMT offset, seconds tm:gmtoff set-tm:gmtoff
name of time zone tm:zone set-tm:zone
*** There are new accessors for the vectors returned by `uname',
describing the host system:
Component Accessor
============================================== ================
name of the operating system implementation utsname:sysname
network name of this machine utsname:nodename
release level of the operating system utsname:release
version level of the operating system utsname:version
machine hardware platform utsname:machine
*** There are new accessors for the vectors returned by `getpw',
`getpwnam', `getpwuid', and `getpwent', describing entries from the
system's user database:
Component Accessor
====================== =================
user name passwd:name
user password passwd:passwd
user id passwd:uid
group id passwd:gid
real name passwd:gecos
home directory passwd:dir
shell program passwd:shell
*** There are new accessors for the vectors returned by `getgr',
`getgrnam', `getgrgid', and `getgrent', describing entries from the
system's group database:
Component Accessor
======================= ============
group name group:name
group password group:passwd
group id group:gid
group members group:mem
*** There are new accessors for the vectors returned by `gethost',
`gethostbyaddr', `gethostbyname', and `gethostent', describing
internet hosts:
Component Accessor
========================= ===============
official name of host hostent:name
alias list hostent:aliases
host address type hostent:addrtype
length of address hostent:length
list of addresses hostent:addr-list
*** There are new accessors for the vectors returned by `getnet',
`getnetbyaddr', `getnetbyname', and `getnetent', describing internet
networks:
Component Accessor
========================= ===============
official name of net netent:name
alias list netent:aliases
net number type netent:addrtype
net number netent:net
*** There are new accessors for the vectors returned by `getproto',
`getprotobyname', `getprotobynumber', and `getprotoent', describing
internet protocols:
Component Accessor
========================= ===============
official protocol name protoent:name
alias list protoent:aliases
protocol number protoent:proto
*** There are new accessors for the vectors returned by `getserv',
`getservbyname', `getservbyport', and `getservent', describing
internet protocols:
Component Accessor
========================= ===============
official service name servent:name
alias list servent:aliases
port number servent:port
protocol to use servent:proto
*** There are new accessors for the sockaddr structures returned by
`accept', `getsockname', `getpeername', `recvfrom!':
Component Accessor
======================================== ===============
address format (`family') sockaddr:fam
path, for file domain addresses sockaddr:path
address, for internet domain addresses sockaddr:addr
TCP or UDP port, for internet sockaddr:port
*** The `getpwent', `getgrent', `gethostent', `getnetent',
`getprotoent', and `getservent' functions now return #f at the end of
the user database. (They used to throw an exception.)
Note that calling MUMBLEent function is equivalent to calling the
corresponding MUMBLE function with no arguments.
*** The `setpwent', `setgrent', `sethostent', `setnetent',
`setprotoent', and `setservent' routines now take no arguments.
*** The `gethost', `getproto', `getnet', and `getserv' functions now
provide more useful information when they throw an exception.
*** The `lnaof' function has been renamed to `inet-lnaof'.
*** Guile now claims to have the `current-time' feature.
*** The `mktime' function now takes an optional second argument ZONE,
giving the time zone to use for the conversion. ZONE should be a
string, in the same format as expected for the "TZ" environment variable.
*** The `strptime' function now returns a pair (TIME . COUNT), where
TIME is the parsed time as a vector, and COUNT is the number of
characters from the string left unparsed. This function used to
return the remaining characters as a string.
*** The `gettimeofday' function has replaced the old `time+ticks' function.
The return value is now (SECONDS . MICROSECONDS); the fractional
component is no longer expressed in "ticks".
*** The `ticks/sec' constant has been removed, in light of the above change.
* Changes to the gh_ interface
@ -172,6 +591,109 @@ the user to interpret the data both ways.
* Changes to the scm_ interface
** The new function scm_symbol_value0 provides an easy way to get a
symbol's value from C code:
SCM scm_symbol_value0 (char *NAME)
Return the value of the symbol named by the null-terminated string
NAME in the current module. If the symbol named NAME is unbound in
the current module, return SCM_UNDEFINED.
** The new function scm_sysintern0 creates new top-level variables,
without assigning them a value.
SCM scm_sysintern0 (char *NAME)
Create a new Scheme top-level variable named NAME. NAME is a
null-terminated string. Return the variable's value cell.
** The function scm_internal_catch is the guts of catch. It handles
all the mechanics of setting up a catch target, invoking the catch
body, and perhaps invoking the handler if the body does a throw.
The function is designed to be usable from C code, but is general
enough to implement all the semantics Guile Scheme expects from throw.
TAG is the catch tag. Typically, this is a symbol, but this function
doesn't actually care about that.
BODY is a pointer to a C function which runs the body of the catch;
this is the code you can throw from. We call it like this:
BODY (BODY_DATA, JMPBUF)
where:
BODY_DATA is just the BODY_DATA argument we received; we pass it
through to BODY as its first argument. The caller can make
BODY_DATA point to anything useful that BODY might need.
JMPBUF is the Scheme jmpbuf object corresponding to this catch,
which we have just created and initialized.
HANDLER is a pointer to a C function to deal with a throw to TAG,
should one occur. We call it like this:
HANDLER (HANDLER_DATA, THROWN_TAG, THROW_ARGS)
where
HANDLER_DATA is the HANDLER_DATA argument we recevied; it's the
same idea as BODY_DATA above.
THROWN_TAG is the tag that the user threw to; usually this is
TAG, but it could be something else if TAG was #t (i.e., a
catch-all), or the user threw to a jmpbuf.
THROW_ARGS is the list of arguments the user passed to the THROW
function.
BODY_DATA is just a pointer we pass through to BODY. HANDLER_DATA
is just a pointer we pass through to HANDLER. We don't actually
use either of those pointers otherwise ourselves. The idea is
that, if our caller wants to communicate something to BODY or
HANDLER, it can pass a pointer to it as MUMBLE_DATA, which BODY and
HANDLER can then use. Think of it as a way to make BODY and
HANDLER closures, not just functions; MUMBLE_DATA points to the
enclosed variables.
Of course, it's up to the caller to make sure that any data a
MUMBLE_DATA needs is protected from GC. A common way to do this is
to make MUMBLE_DATA a pointer to data stored in an automatic
structure variable; since the collector must scan the stack for
references anyway, this assures that any references in MUMBLE_DATA
will be found.
** The new function scm_internal_lazy_catch is exactly like
scm_internal_catch, except:
- It does not unwind the stack (this is the major difference).
- If handler returns, its value is returned from the throw.
- BODY always receives #f as its JMPBUF argument (since there's no
jmpbuf associated with a lazy catch, because we don't unwind the
stack.)
** scm_body_thunk is a new body function you can pass to
scm_internal_catch if you want the body to be like Scheme's `catch'
--- a thunk, or a function of one argument if the tag is #f.
BODY_DATA is a pointer to a scm_body_thunk_data structure, which
contains the Scheme procedure to invoke as the body, and the tag
we're catching. If the tag is #f, then we pass JMPBUF (created by
scm_internal_catch) to the body procedure; otherwise, the body gets
no arguments.
** scm_handle_by_proc is a new handler function you can pass to
scm_internal_catch if you want the handler to act like Scheme's catch
--- call a procedure with the tag and the throw arguments.
If the user does a throw to this catch, this function runs a handler
procedure written in Scheme. HANDLER_DATA is a pointer to an SCM
variable holding the Scheme procedure object to invoke. It ought to
be a pointer to an automatic variable (i.e., one living on the stack),
or the procedure object should be otherwise protected from GC.
** scm_handle_by_message is a new handler function to use with
`scm_internal_catch' if you want Guile to print a message and die.
It's useful for dealing with throws to uncaught keys at the top level.
HANDLER_DATA, if non-zero, is assumed to be a char * pointing to a
message header to print; if zero, we use "guile" instead. That
text is followed by a colon, then the message described by ARGS.
** The return type of scm_boot_guile is now void; the function does
not return a value, and indeed, never returns at all.
** The new function scm_shell makes it easy for user applications to
process command-line arguments in a way that is compatible with the
stand-alone guile interpreter (which is in turn compatible with SCSH,
@ -186,20 +708,97 @@ generally means loading a script file or starting up an interactive
command interpreter. For details, see "Changes to the stand-alone
interpreter" above.
** [[new: scm_usage_name, scm_shell_usage, scm_compile_shell_switches]]
** The new functions scm_get_meta_args and scm_count_argv help you
implement the SCSH-style meta-argument, `\'.
char **scm_get_meta_args (int ARGC, char **ARGV)
If the second element of ARGV is a string consisting of a single
backslash character (i.e. "\\" in Scheme notation), open the file
named by the following argument, parse arguments from it, and return
the spliced command line. The returned array is terminated by a
null pointer.
For details of argument parsing, see above, under "guile now accepts
command-line arguments compatible with SCSH..."
int scm_count_argv (char **ARGV)
Count the arguments in ARGV, assuming it is terminated by a null
pointer.
For an example of how these functions might be used, see the source
code for the function scm_shell in libguile/script.c.
You will usually want to use scm_shell instead of calling this
function yourself.
** The new function scm_compile_shell_switches turns an array of
command-line arguments into Scheme code to carry out the actions they
describe. Given ARGC and ARGV, it returns a Scheme expression to
evaluate, and calls scm_set_program_arguments to make any remaining
command-line arguments available to the Scheme code. For example,
given the following arguments:
-e main -s ekko a speckled gecko
scm_set_program_arguments will return the following expression:
(begin (load "ekko") (main (command-line)) (quit))
You will usually want to use scm_shell instead of calling this
function yourself.
** The function scm_shell_usage prints a usage message appropriate for
an interpreter that uses scm_compile_shell_switches to handle its
command-line arguments.
void scm_shell_usage (int FATAL, char *MESSAGE)
Print a usage message to the standard error output. If MESSAGE is
non-zero, write it before the usage message, followed by a newline.
If FATAL is non-zero, exit the process, using FATAL as the
termination status. (If you want to be compatible with Guile,
always use 1 as the exit status when terminating due to command-line
usage problems.)
You will usually want to use scm_shell instead of calling this
function yourself.
** scm_eval_0str now returns SCM_UNSPECIFIED if the string contains no
expressions. It used to return SCM_EOL.
expressions. It used to return SCM_EOL. Earth-shattering.
* Changes to documentation
** The macros for declaring scheme objects in C code have been
rearranged slightly. They are now:
** the $(srcdir)/newdoc hierarchy now contains a new approach to the
manuals. The approach, recommended by Jim Blandy, is to have: (*) a
tutorial with the pedagogical style of guile-user, and a non-dry
reference manual in the style of the most excellent GNU libc reference
manual: the reference manual should be complete, but at the same time
it should have an introductory screen for each major topic, which can
be referenced if the user goes "up" a level in the info documentation.
SCM_SYMBOL (C_NAME, SCHEME_NAME)
Declare a static SCM variable named C_NAME, and initialize it to
point to the Scheme symbol whose name is SCHEME_NAME. C_NAME should
be a C identifier, and SCHEME_NAME should be a C string.
SCM_GLOBAL_SYMBOL (C_NAME, SCHEME_NAME)
Just like SCM_SYMBOL, but make C_NAME globally visible.
SCM_VCELL (C_NAME, SCHEME_NAME)
Create a global variable at the Scheme level named SCHEME_NAME.
Declare a static SCM variable named C_NAME, and initialize it to
point to the Scheme variable's value cell.
SCM_GLOBAL_VCELL (C_NAME, SCHEME_NAME)
Just like SCM_VCELL, but make C_NAME globally visible.
The `guile-snarf' script writes initialization code for these macros
to its standard output, given C source code as input.
The SCM_GLOBAL macro is gone.
** The scm_read_line and scm_read_line_x functions have been replaced
by Scheme code based on the %read-delimited! procedure (known to C
code as scm_read_delimited_x). See its description above for more
information.
** The function scm_sys_open has been renamed to scm_open. It now
returns a port instead of an FD object.
* The dynamic linking support has changed. For more information, see
libguile/DYNAMIC-LINKING.
Guile 1.0b3

8
ice-9/ChangeLog
View file

@ -114,7 +114,7 @@ Wed Mar 19 04:50:34 1997 Gary Houston <ghouston@actrix.gen.nz>
Tue Mar 18 18:39:31 1997 Gary Houston <ghouston@actrix.gen.nz>
* * boot-9.scm (setpwent, setgrent, sethostent, setnetent, setprotoent,
* boot-9.scm (setpwent, setgrent, sethostent, setnetent, setprotoent,
setservent): no longer take an argument, it was bogus.
Thu Mar 13 00:13:41 1997 Gary Houston <ghouston@actrix.gen.nz>
@ -194,7 +194,7 @@ Sat Mar 1 00:10:38 1997 Mikael Djurfeldt <mdj@mdj.nada.kth.se>
(add-hooks!): New macro.
Change hooks to use these functions.
* * debug.scm: *Warning* This feature is a bit premature. I add
* debug.scm: *Warning* This feature is a bit premature. I add
it anyway because 1. it is very useful, and, 2. you can start
making it less premature by complaining to me and by modifying
the source! :-)
@ -210,7 +210,7 @@ Sat Mar 1 00:10:38 1997 Mikael Djurfeldt <mdj@mdj.nada.kth.se>
* boot-9.scm (error-catching-loop): Added handling of apply-frame
and exit-frame exceptions.
* * boot-9.scm (assert-repl-prompt, the-prompt-string): Removed.
* boot-9.scm (assert-repl-prompt, the-prompt-string): Removed.
(set-repl-prompt!): Setter for repl prompt.
(scm-style-repl): If prompt is #f, don't prompt; if prompt is a
string, display it; if prompt is a thunk, call it and display its
@ -292,7 +292,7 @@ Tue Jan 7 20:02:24 1997 Jim Blandy <jimb@floss.cyclic.com>
Mon Jan 6 01:13:53 1997 Mikael Djurfeldt <mdj@kenneth>
* * boot-9.scm (use-modules): New macro (from Marius Vollmer).
* boot-9.scm (use-modules): New macro (from Marius Vollmer).
(use-modules <module name> ...) Put the the modules named by
<module name> ... on the use list of the current module.

45
libguile/ChangeLog
View file

@ -3,8 +3,9 @@ Thu May 15 16:22:33 1997 Jim Blandy <jimb@floss.cyclic.com>
* net_db.c (scm_gethost, scm_getnet, scm_getproto, scm_getserv):
Return #f on end-of-file when scanning table (i.e. when called
with no arguments). Try to catch errors, when we can.
* script.h (scm_shell-usage, scm_compile_shell_switches): New
* posix.c (scm_getgrgid, scm_getpwuid): Same.
* script.h (scm_shell_usage, scm_compile_shell_switches): New
external declarations. These are useful.
Thu May 15 05:21:36 1997 Gary Houston <ghouston@actrix.gen.nz>
@ -12,7 +13,7 @@ Thu May 15 05:21:36 1997 Gary Houston <ghouston@actrix.gen.nz>
* posix.c: don't include <sys/select.h> or define macros for
select, since they were not used in this file.
* * filesys.c (scm_select): make the fifth parameter microseconds,
* filesys.c (scm_select): make the fifth parameter microseconds,
not milliseconds. let the fourth parameter be either a real value
or an integer or #f. The first, second and third arguments can
now be vectors: the type of the corresponding return set will be
@ -150,7 +151,7 @@ Sun Apr 27 17:57:15 1997 Jim Blandy <jimb@floss.cyclic.com>
Thu Apr 24 00:41:08 1997 Jim Blandy <jimb@floss.cyclic.com>
Functions for finding variable bindings, grace à Tim Pierce.
* * gh_data.c (gh_lookup, gh_module_lookup): New functions.
* gh_data.c (gh_lookup, gh_module_lookup): New functions.
* gh.h (gh_lookup, gh_module_lookup): New prototypes.
Get 'make dist' to work again.
@ -298,7 +299,7 @@ Sun Apr 13 23:03:55 1997 Jim Blandy <jimb@floss.cyclic.com>
Fri Apr 11 14:12:13 1997 Jim Blandy <jimb@floss.cyclic.com>
* * filesys.c (scm_fcntl): New function from Roland McGrath.
* filesys.c (scm_fcntl): New function from Roland McGrath.
(scm_init_filesys): New symbols for use with fcntl.
* filesys.h: Added prototype.
@ -348,7 +349,7 @@ Wed Apr 9 09:08:54 1997 Gary Houston <ghouston@actrix.gen.nz>
(scm_strftime): don't call mktime before strftime. Use
filltime for return value.
(filltime): convert NULL zname to #f.
* (scm_strptime): return a count of characters consumed, not
(scm_strptime): return a count of characters consumed, not
the remaining string.
Sun Apr 6 05:44:11 1997 Gary Houston <ghouston@actrix.gen.nz>
@ -417,7 +418,7 @@ Mon Mar 31 03:22:37 1997 Gary Houston <ghouston@actrix.gen.nz>
* posix.h: add prototype for scm_close_pipe, remove prototypes for
scm_open_input_pipe, scm_open_output_pipe, change scm_mknod prototype.
* * posix.c (scm_mknod): split the mode argument into type and perms
* posix.c (scm_mknod): split the mode argument into type and perms
arguments, like the extra fields returned by stat.
* fports.c (scm_pipob): set the close, free and print procedures.
@ -545,7 +546,7 @@ Thu Mar 13 18:31:33 1997 Mikael Djurfeldt <mdj@mdj.nada.kth.se>
* unif.c (scm_array_set_x): Cast ICHR (obj) to char if storing in
a scm_tc7_byvect.
* ramap.c (scm_ra_matchp, scm_ra_matchp, scm_array_fill_int, racp,
* ramap.c (scm_ra_matchp, scm_array_fill_int, racp,
scm_array_index_map_x, raeql_1, scm_array_equal_p): Completed
support for byte vectors.
@ -580,7 +581,7 @@ Mon Mar 10 06:28:54 1997 Gary Houston <ghouston@actrix.gen.nz>
Setup scm_keyword_prefix symbol.
(scm_lreadr): Only process keywords if SCM_KEYWORD_STYLE is
set to 'prefix.
* I've left keyword support disabled by default, since it doesn't
I've left keyword support disabled by default, since it doesn't
seem to break the module system and it gives R4RS standard behaviour.
It can be reactivated with (read-set! keywords 'prefix).
@ -622,7 +623,7 @@ Sat Mar 8 00:27:05 1997 Gary Houston <ghouston@actrix.gen.nz>
* read.c (scm_read_hash_procedures): new variable.
(scm_read_hash_extend): new procedure.
(scm_get_hash_procedure): new procedure.
* (scm_lreadr): use scm_get_hash_procedure instead of an argument
(scm_lreadr): use scm_get_hash_procedure instead of an argument
for extended # processing.
(scm_read, scm_lreadr, scm_lreadrecparen, scm_lreadparen,
scm_read_token): remove case_i, sharp arguments. Change callers.
@ -633,7 +634,7 @@ Fri Mar 7 08:58:21 1997 Gary Houston <ghouston@actrix.gen.nz>
(SCM_CASE_INSENSITIVE_P): define.
* read.c: add case-insensitive option to scm_read_opts.
* (scm_read_token): use SCM_CASE_INSENSITIVE_P instead of an argument
(scm_read_token): use SCM_CASE_INSENSITIVE_P instead of an argument
to determine whether to convert symbol case.
(default_case_i): definition removed.
* read.c (scm_read_token): if case_i, downcase ic before doing
@ -668,7 +669,7 @@ Fri Mar 7 19:38:18 1997 Mikael Djurfeldt <mdj@mdj.nada.kth.se>
debug support twice, but it also seems to increase the speed of
the evaluator for such calls (e. g. (+ 1 2 3)).
* * backtrace.c (scm_display_application): New procedure:
* backtrace.c (scm_display_application): New procedure:
display-application; Set fancy printing parameters individually
for different types of display (backtrace, error, application).
(These should of course be customizable!)
@ -690,7 +691,7 @@ Wed Mar 5 23:31:21 1997 Mikael Djurfeldt <mdj@mdj.nada.kth.se>
(scm_symbol_hash): Bugfix: Must msymbolize if tc7_ssymbol, othwise
we get segmentation fault!
* * symbols.c: Added #include "weaks.h". New functions:
* symbols.c: Added #include "weaks.h". New functions:
`builtin-bindings' and `builtin-weak-bindings'. (These will be
moved to an extraneous library when we split libguile.)
@ -905,7 +906,7 @@ Tue Feb 4 16:57:40 1997 Jim Blandy <jimb@floss.cyclic.com>
Tue Feb 4 05:07:35 1997 Gary Houston <ghouston@actrix.gen.nz>
* * net_db.c (scm_lnaof): change scheme name from lnaof to inet-lnaof.
* net_db.c (scm_lnaof): change scheme name from lnaof to inet-lnaof.
Mon Feb 3 06:12:37 1997 Gary Houston <ghouston@actrix.gen.nz>
@ -924,7 +925,7 @@ Fri Jan 31 04:33:11 1997 Gary Houston <ghouston@actrix.gen.nz>
* ioext.c, ioext.h: remove obsolete _sys_ from 9 procedure names.
* * posix.c (scm_fork): Scheme name changed from fork to primitive-fork,
* posix.c (scm_fork): Scheme name changed from fork to primitive-fork,
to avoid clash with various scsh forks.
Thu Jan 30 20:14:09 1997 Mikael Djurfeldt <mdj@syk-0606.pdc.kth.se>
@ -960,11 +961,11 @@ Fri Jan 24 06:16:32 1997 Gary Houston <ghouston@actrix.gen.nz>
* __scm.h: uncomment SCM_ARG6 and SCM_ARG7, I needed SCM_ARG6.
* ioext.h: update prototypes.
* * ioext.c (scm_read_delimited_x): replaces scm_read_line and
* ioext.c (scm_read_delimited_x): replaces scm_read_line and
scm_read_line_x, it's a more general procedure using an
interface from scsh. read-line and read-line! are now defined
in boot-9.scm.
* Note that the new read-line trims the terminator
Note that the new read-line trims the terminator
by default, previously it was appended to the returned string. An
optional argument specifies how to process the terminator (scsh
compatible). For the old behaviour: (read-line port 'concat).
@ -975,7 +976,7 @@ Fri Jan 24 06:16:32 1997 Gary Houston <ghouston@actrix.gen.nz>
socket.h: update prototypes.
* socket.c (scm_recvfrom): for consistency with other procedures,
take start and end as separate optional arguments.
* (scm_recv, scm_recvfrom): don't allow the second argument
(scm_recv, scm_recvfrom): don't allow the second argument
to be a size, only a buffer. Change the scheme names to
recv! and recvfrom!. Don't return the buffer.
@ -1027,14 +1028,14 @@ Sat Jan 18 00:03:31 1997 Gary Houston <ghouston@actrix.gen.nz>
SCM_FD.
* filesys.c (scm_sys_stat, scm_sys_lstat): pass errno to
scm_syserror_msg.
* (scm_sys_read_fd, scm_sys_write_fd, scm_sys_close, scm_sys_lseek,
(scm_sys_read_fd, scm_sys_write_fd, scm_sys_close, scm_sys_lseek,
scm_sys_dup): deleted: FD capability will be added to other
procedures.
* Remove support for the FD object type: scm_tc16_fd, scm_fd_print,
Remove support for the FD object type: scm_tc16_fd, scm_fd_print,
scm_fd_free, fd_smob, scm_intern_fd.
* (scm_open): renamed from scm_sys_open. Return a port instead of
(scm_open): renamed from scm_sys_open. Return a port instead of
an FD object. Make the mode argument optional.
* (scm_sys_create): deleted, it's just a special case of open.
(scm_sys_create): deleted, it's just a special case of open.
(scm_init_filesys): move interning of constants O_CREAT etc.,
here (were previously using SCM_CONST_LONG macro).
Add missing constants: O_RDONLY, O_WRONLY, O_RDWR, O_CREAT.