556 lines
14 KiB
Scheme
556 lines
14 KiB
Scheme
;;; The packages that scsh uses/defines.
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;;; Copyright (c) 1994 by Olin Shivers.
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;;; Note: field-reader package (fr.scm) and here docs use READ-LINE.
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;;; It is defined in rdelim.scm.
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;;; You link up a scsh package by defining a package named OS-DEPENDENT
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;;; that satisfies the interfaces for packages
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;;; buffered-io-flags
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;;; posix-fdflags
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;;; posix-errno
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;;; posix-signals
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;;; Anything else it provides should be specified in an interface called
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;;; os-extras-interface. See the scsh structure below.
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;;; Then the scsh structure can be instantiated.
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;;;
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;;; The architecture directories, like next/ and irix/ and so forth,
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;;; provide packages that can serve as the os-dependent package. E.g.,
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;;; the next-defs package, defined in next/packages.
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;;;
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;;; This whole mechanism would be better solved with a functor.
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;;; -Olin
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;;; The LET-OPT package for optional argument parsing & defaulting
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;;; is found in the let-opt.scm file.
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(define-structure error-package (export error warn)
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(open signals)
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; (optimize auto-integrate)
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)
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(define-structure scsh-utilities scsh-utilities-interface
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(open bitwise error-package loopholes let-opt scheme define-record-types
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records
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threads threads-internal placeholders locks srfi-1)
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(files utilities)
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; (optimize auto-integrate)
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)
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(define-structure weak-tables weak-tables-interface
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(open scheme
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weak
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tables)
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(files weaktables))
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(define-structure string-collectors string-collectors-interface
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(open scheme
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defrec-package)
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(files stringcoll))
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(define-structure delimited-readers delimited-readers-interface
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(open scheme
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byte-vectors
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signals ; ERROR
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let-opt
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receiving
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re-level-0 rx-syntax
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(subset srfi-14 (char-set x->char-set char-set-contains?))
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ascii
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i/o-internal ports)
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(files rdelim))
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(define list-lib srfi-1)
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(define string-lib srfi-13)
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(define char-set-lib srfi-14)
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;;; This guy goes into the FOR-SYNTAX part of scsh's syntax exports.
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(define-structure scsh-syntax-helpers
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(export transcribe-extended-process-form)
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(open receiving ; receive
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error-package
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names ; generated? by JMG
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scsh-utilities ; check-arg
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scheme
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)
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(files syntax-helpers)
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; (optimize auto-integrate)
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)
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;;; The bufpol/{block, line, none} values
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(define-structure buffered-io-flags buffered-io-flags-interface
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(open defenum-package scheme)
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(files (machine bufpol))
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; (optimize auto-integrate)
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)
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(define-structures ((tty-flags tty-flags-interface)
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(scsh-internal-tty-flags scsh-internal-tty-flags-interface))
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(open scheme ascii bitwise)
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(files (machine tty-consts))
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; (optimize auto-integrate)
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)
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(define-structure scsh-version scsh-version-interface
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(open scheme)
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(files scsh-version))
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(define-structure scsh-errors scsh-errors-interface
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(open scheme
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handle conditions signals)
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(files scsh-condition))
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(define-structure scsh-endian scsh-endian-interface
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(open scheme
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bitwise)
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(files endian))
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(define-structure partial-s48-ports
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(export current-input-port current-output-port
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newline
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current-error-port
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$current-input-port
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$current-output-port
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$current-error-port
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$current-noise-port)
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(open ports i/o))
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;;; The scsh-level-0 package is for implementation convenience.
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;;; The scsh startup and top-level modules need access to scsh
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;;; procedures, but they export procedures that are themselves
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;;; part of scsh. So scsh-level-0 is the core scsh stuff, which is
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;;; imported by these two modules. These modules all collectively
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;;; export the whole scsh enchilada.
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(define-structures
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((scsh-level-0
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(compound-interface posix-fdflags-interface
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posix-errno-interface
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posix-signals-interface
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sockets-network-interface ; Standard Network Interface
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os-extras-interface ; Extra stuff from OS.
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scsh-delimited-readers-interface
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scsh-errors-interface
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scsh-io-interface
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scsh-file-interface
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scsh-process-interface
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scsh-process-state-interface
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scsh-user/group-db-interface
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scsh-command-line-interface
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scsh-signals-interface
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scsh-environment-interface
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scsh-home-interface
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scsh-string-interface
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scsh-file-names-interface
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scsh-misc-interface
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scsh-high-level-process-interface
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scsh-time-interface ; new in 0.2
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scsh-sockets-interface ; new in 0.3
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scsh-endian-interface
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tty-interface ; new in 0.4
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scsh-version-interface
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(interface-of char-set-lib)
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(export ->char-set)
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signal-handler-interface
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;; This stuff would probably be better off kept
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;; in separate modules, but we'll toss it in for now.
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(interface-of ascii) ; char<->ascii
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string-ports-interface
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syslog-interface
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crypt-interface
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))
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(scsh-level-0-internals (export set-command-line-args!
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init-scsh-hindbrain
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initialize-cwd
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init-scsh-vars))
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; (scsh-regexp-package scsh-regexp-interface)
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)
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(for-syntax (open scsh-syntax-helpers scheme))
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(access rts-sigevents sigevents threads)
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(open enumerated
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defenum-package
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external-calls ;JMG new FFI
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structure-refs
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receiving
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defrec-package
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define-record-types
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formats
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string-collectors
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delimited-readers
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os-dependent ; OS dependent stuff
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buffered-io-flags ; stdio dependent
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ascii
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records
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extended-ports
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partial-s48-ports
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ports
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build
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bigbit
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bitwise
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signals
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conditions
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(subset srfi-1 (filter reverse! fold delete))
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scsh-utilities
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handle
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fluids thread-fluids
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weak-tables
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srfi-14
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; scsh-regexp-package
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; scsh-regexp-internals
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scsh-version
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tty-flags
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scsh-internal-tty-flags ; Not exported
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syslog
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let-opt ; optional-arg parsing & defaulting
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architecture ; Was this by JMG ??
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re-level-0
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rx-syntax
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srfi-13
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thread-fluids ; For exec-path-list
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loopholes ; For my bogus CALL-TERMINALLY implementation.
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scheme
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low-interrupt ; for sighandler and procobj
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i/o ; all these seem to be for scsh-0.6 JMG
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i/o-internal
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channels channel-i/o
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low-channels
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byte-vectors
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threads locks placeholders
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primitives
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escapes
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command-levels
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features
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general-tables
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simple-syntax
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scsh-errors
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scsh-endian)
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(for-syntax (open scsh-syntax-helpers scheme))
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(access interrupts
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sort
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command-processor
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escapes
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i/o ; S48's force-output
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exceptions ; signal-exception
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formats
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threads-internal
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records ; I don't think this is necessary. !!!
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scheme) ; For accessing the normal I/O operators.
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(files syntax
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syscalls
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; select
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fname
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rw
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newports
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fdports
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procobj ; New in release 0.4.
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(machine waitcodes) ; OS dependent code.
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filesys
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fileinfo
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glob
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filemtch
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time ; New in release 0.2.
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(machine time_dep)
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network ; New in release 0.3.
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flock ; New in release 0.4.
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tty ; New in release 0.4.
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pty ; New in release 0.4.
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sighandlers ; New in release 0.5.
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scsh
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; re
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)
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; (optimize auto-integrate)
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(begin
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;; work around for SRFI 14 naming fuckage
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(define ->char-set x->char-set))
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)
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(define-structure defrec-package (export (define-record :syntax))
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(open records scheme)
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(for-syntax (open scheme error-package receiving))
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(files defrec)
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; (optimize auto-integrate)
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)
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(define-structure defenum-package (export (define-enum-constant :syntax)
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(define-enum-constants :syntax)
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(define-enum-constants-from-zero
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:syntax))
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(open scheme)
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(files enumconst)
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; (optimize auto-integrate)
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)
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;;; This code opens so many modules of gruesome, low-level S48 internals
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;;; that these two modules are segregated into separate packages, each
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;;; exporting just two definitions.
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(define-structure scsh-startup-package (export dump-scsh-program
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dump-scsh
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make-scsh-starter
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scsh-stand-alone-resumer)
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(open scsh-level-0-internals ; init-scsh-* set-command-line-args!
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scsh-level-0 ; error-output-port command-line-arguments
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scsh-top-package ; parse-switches-and-execute
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handle ; with-handler
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command-levels ; user-context
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write-images ; write-image
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build-internals ; simple-condition-handler
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low-level ; flush-the-symbol-table!
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command-processor ; command-output
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package-commands-internal
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filenames ; translate
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usual-resumer ; usual-resumer
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environments ; with-interaction-environment
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fluids-internal ; JMG: get-dynamic-env
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threads threads-internal queues scheduler
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structure-refs
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scsh-utilities
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interrupts
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low-interrupt
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sigevents
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primitives
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scheme)
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(access threads-internal)
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(files startup))
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(define-structure scsh-top-package (export parse-switches-and-execute
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with-scsh-initialized
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add-exit-hook!
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add-narrowed-exit-hook!
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repl)
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(open command-processor
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command-levels ; with-new-session
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conditions
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ensures-loaded
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environments
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error-package
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evaluation
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extended-ports
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fluids
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interfaces
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sigevents
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low-interrupt
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fluids-internal ; JMG: get-dynamic-env
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handle ; JMG: with-handler
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; package-commands
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interrupts
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i/o
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package-commands-internal
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package-mutation
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packages
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receiving
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scsh-version
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scsh-level-0 ; with-current-input-port error-output-port
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; with-current-output-port exit
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scsh-level-0-internals ; set-command-line-args! init-scsh-vars
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threads
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(subset srfi-1 (any))
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(subset srfi-14 (char-set
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char-set-complement!
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char-set-contains?
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string->char-set))
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root-scheduler ; scheme-exit-now
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scheme)
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(files top meta-arg))
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(define-structure field-reader-package scsh-field-reader-interface
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(open receiving ; receive
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scsh-utilities ; deprecated-proc
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error-package ; error
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(subset srfi-13 (string-join))
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(subset srfi-14 (char-set?
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char-set:whitespace
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char-set
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x->char-set
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char-set-complement))
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delimited-readers
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re-exports
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let-opt ; optional-arg parsing & defaulting
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scheme
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)
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(files fr)
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;; Handle a little bit of backwards compatibility.
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(begin (define join-strings (deprecated-proc string-join 'join-strings
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"Use SRFI-13 STRING-JOIN.")))
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)
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(define-structures
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((awk-expander-package (export expand-awk expand-awk/obsolete))
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(awk-support-package (export next-range next-:range
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next-range: next-:range:)))
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(open receiving ; receive
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;; scsh-utilities
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(subset srfi-1 (any filter))
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error-package ; error
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; scsh-regexp-package
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; re-exports
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sre-syntax-tools
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scheme
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)
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(files awk)
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; (optimize auto-integrate)
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)
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(define-structure awk-package awk-interface
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(open awk-support-package ; These packages provide all the stuff
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re-exports ; that appears in the code produced by
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receiving ; an awk expansion.
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scheme)
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(for-syntax (open awk-expander-package scheme))
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(begin (define-syntax awk expand-awk)
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(define-syntax awk/posix-string expand-awk/obsolete)))
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;;; Exports an AWK macro that is just AWK/POSIX-STRING.
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(define-structure obsolete-awk-package (export (awk :syntax))
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(open awk-package)
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(begin (define-syntax awk
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(syntax-rules () ((awk body ...) (awk/posix-string body ....))))))
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(define-structure scsh
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(compound-interface (interface-of scsh-level-0)
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(interface-of scsh-startup-package)
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; scsh-regexp-interface
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re-exports-interface
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re-old-funs-interface
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scsh-field-reader-interface ; new in 0.3
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; scsh-dbm-interface
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(export repl)
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awk-interface
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char-predicates-interface; Urk -- Some of this is R5RS!
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dot-locking-interface
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)
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(open structure-refs
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scsh-level-0
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scsh-level-0-internals
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re-exports
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re-old-funs
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; scsh-regexp-package
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scsh-startup-package
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; dbm
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awk-package
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field-reader-package
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char-predicates-lib ; Urk -- Some of this is R5RS!
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dot-locking
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scheme)
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(access scsh-top-package)
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(begin (define repl (structure-ref scsh-top-package repl)))
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; (optimize auto-integrate)
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)
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(define-structure scsh-here-string-hax (export)
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(open reading
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receiving
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scsh ; Just need the delimited readers.
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features ; make-immutable!
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(subset srfi-14 (char-set))
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scheme)
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(files here))
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(define-structure sigevents sigevents-interface
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(open scsh-level-0
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scheme
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structure-refs
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low-interrupt
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rts-sigevents)
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(files event))
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(define-structure simple-syntax (export define-simple-syntax)
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(open scheme)
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(begin (define-syntax define-simple-syntax
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(syntax-rules ()
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((define-simple-syntax (name . pattern) result)
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(define-syntax name (syntax-rules () ((name . pattern) result))))))))
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(define-structure low-interrupt low-interrupt-interface
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(open scheme
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enumerated
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bigbit
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bitwise)
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(files low-interrupt))
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;(define-structure test-package (export test-proc)
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; (open scsh-regexp-package scheme)
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; (begin (define (test-proc p)
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; (regexp-substitute p
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; (string-match "(foo)(.*)(bar)" "Hello foo Olin bar quux")
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; 'post 3 1 2 'pre))))
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(define-structure scsh-threads
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(export fork/thread
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fork/process
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wait/thread
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wait/process)
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(open structure-refs
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scheme)
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(access scsh-level-0
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threads
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threads-internal)
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(files threads))
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(define-structure dot-locking dot-locking-interface
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(open scsh-level-0
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scheme
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let-opt
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threads ; sleep
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random)
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(files dot-locking))
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(define-structures ((syslog syslog-interface)
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(syslog-channels syslog-channels-interface))
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(open scheme
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define-record-types finite-types enum-sets
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locks thread-fluids
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external-calls
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bitwise)
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(files syslog))
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(define-structure libscsh (export dump-libscsh-image)
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(open scheme
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external-calls
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(subset i/o (current-error-port))
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(subset extended-ports (make-string-input-port))
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(subset handle (with-handler))
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(subset escapes (with-continuation))
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(subset environments (with-interaction-environment))
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(subset package-commands-internal (user-environment))
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(subset command-levels (user-context start-new-session))
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(subset command-processor (user-command-environment))
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(subset scsh-startup-package (dump-scsh-program)))
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(files libscsh))
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(define-structure md5 md5-interface
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(open scheme
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ascii
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define-record-types
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bitwise
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(subset i/o (read-block))
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(subset srfi-13 (string-fold-right))
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signals
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external-calls)
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(files md5)) |