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* module/ice-9/hooks.scm: New file. * am/bootstrap.am: Add new file. * module/ice-9/deprecated.scm: Add trampolines to (ice-9 hooks). * module/ice-9/scm-style-repl.scm: * module/ice-9/session.scm: * module/ice-9/top-repl.scm: * module/scripts/scan-api.scm: * guile-readline/ice-9/readline.scm: * benchmark-suite/benchmark-suite/lib.scm: * module/system/repl/command.scm: * module/system/repl/common.scm: * module/system/repl/debug.scm: * module/system/repl/error-handling.scm: * module/system/repl/hooks.scm: * module/system/repl/reader.scm: * module/system/repl/repl.scm: * module/ice-9/history.scm: * test-suite/tests/hooks.test: Use the new module. * module/oop/goops.scm: Remove <hook> class definition. * libguile/vm.c: * libguile/init.c: * libguile/Makefile.am: * libguile.h: Remove hooks.h includes. * libguile/hooks.c: * libguile/hooks.h: Remove. * libguile/deprecated.h: * libguile/deprecated.c: Add deprecation shims for C API.
67 lines
2.4 KiB
Scheme
67 lines
2.4 KiB
Scheme
;;;; Copyright (C) 2000, 2001, 2004, 2006, 2010, 2025 Free Software Foundation, Inc.
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;;;;
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;;;; This library is free software; you can redistribute it and/or
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;;;; modify it under the terms of the GNU Lesser General Public
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;;;; License as published by the Free Software Foundation; either
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;;;; version 3 of the License, or (at your option) any later version.
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;;;;
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;;;; This library is distributed in the hope that it will be useful,
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;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;;;; Lesser General Public License for more details.
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;;;;
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;;;; You should have received a copy of the GNU Lesser General Public
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;;;; License along with this library; if not, write to the Free Software
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;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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;;;;
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;;;; A simple value history support
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(define-module (ice-9 history)
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#:use-module (ice-9 hooks)
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#:use-module (system repl hooks)
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#:export (value-history-enabled? enable-value-history! disable-value-history!
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clear-value-history!))
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(define-module* '(value-history))
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(define *value-history-enabled?* #f)
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(define (value-history-enabled?)
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*value-history-enabled?*)
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(define (use-value-history x)
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(module-use! (current-module)
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(resolve-interface '(value-history))))
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(define save-value-history
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(let ((count 0)
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(history (resolve-module '(value-history))))
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(lambda (v)
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(if (not (unspecified? v))
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(let* ((c (1+ count))
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(s (string->symbol (simple-format #f "$~A" c))))
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(simple-format #t "~A = " s)
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(module-define! history s v)
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(module-export! history (list s))
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(set! count c))))))
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(define (enable-value-history!)
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(if (not (value-history-enabled?))
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(begin
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(add-hook! before-eval-hook use-value-history)
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(add-hook! before-print-hook save-value-history)
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(set! *value-history-enabled?* #t))))
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(define (disable-value-history!)
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(if (value-history-enabled?)
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(begin
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(remove-hook! before-eval-hook use-value-history)
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(remove-hook! before-print-hook save-value-history)
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(set! *value-history-enabled?* #f))))
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(define (clear-value-history!)
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(let ((history (resolve-module '(value-history))))
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(hash-clear! (module-obarray history))
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(hash-clear! (module-obarray (module-public-interface history)))))
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(enable-value-history!)
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