【发布时间】：2020-11-03 09:31:15
【问题描述】：
概述
我正在尝试运行this code 的简化版本，它需要cxml 和klacks 库来进行XML 解析。 （具体代码为"The Art of Postgresql"本书第47章。）
由于我对(Common) Lisp/ASDF/Quicklisp知之甚少，所以不知道如何正确安装所需的cxml/klacks库。
系统
万一这很重要，我在 Ubuntu 下使用 SBCL 1.5.5.debian（作为记录，我之前尝试过 clisp，但我发现它带有一个非常过时的 ASDF 版本。）
到目前为止我已完成的步骤
在 bash 中：
sudo apt-get install cl-cxml
（确实 /usr/share/common-lisp/source/cxml/ 和 /usr/share/common-lisp/source/cxml/klacks/ 现在出现在我的系统上。）
在 sbcl REPL 中：
(ql:quickload :cxml)
结果：一条很长的错误消息，其要点似乎是Component "cxml/dom" not found。 （尽管/usr/share/common-lisp/source/cxml/dom 确实存在，但我不确定它是否重要。）请参阅最后的完整错误消息。
(ql:quickload :klacks)
结果：另一个长错误，其要点是System "klacks" not found（即使该目录再次出现在系统上）。
备注
将qucikload 用于其他库作品，例如：
(ql:quickload :postmodern)
(ql:quickload :zip)
(ql:quickload :yason)
问题
简而言之：在上述系统上安装cxml 和klacks 的正确方法是什么？
除了这个具体问题的解决方案，我想更好地了解发生了什么，特别是：
-
是否可以使用
quicklisp安装所有依赖项，或者是否有一些支持它而一些不支持？ （在这种情况下，cxml是不支持quicklisp的依赖项吗？我怎么知道哪些包支持它？） -
quciklisp是否查看本地安装（即/usr/share/common-lisp/source/cxml/），还是仅从在线存储库中工作？ （换句话说：我通过 apt-get 安装cl-xml是否重要？） -
如果考虑到本地路径，那为什么找不到
cxml/dom和cxml/klacks？ -
既然
klacks是cxml的子包，那我需要单独导入吗？ 通过浏览提到的源代码，尤其是package.lisp 和pubnames.asd，我没有看到它显式导入。它仍然在代码中使用，例如here。所以我想需要的是显式导入cxml，然后所有子包（包括klacks）也被导入，自动加上正确的命名空间前缀？
详细的错误信息
* (ql:quickload :cxml)
;;; Checking for wide character support... WARNING: Lisp implementation doesn't use UTF-16, but accepts surrogate code points.
yes, using code points.
To load "cxml":
Load 1 ASDF system:
cxml
; Loading "cxml"
;;; Checking for wide character support... WARNING: Lisp implementation doesn't use UTF-16, but accepts surrogate code points.
yes, using code points.
.
;;; Checking for wide character support... WARNING: Lisp implementation doesn't use UTF-16, but accepts surrogate code points.
yes, using code points.
;;; Checking for wide character support... WARNING: Lisp implementation doesn't use UTF-16, but accepts surrogate code points.
yes, using code points.
;;; Building Closure with CHARACTER RUNES
To load "cxml/dom":
Load 3 ASDF systems:
closure-common puri trivial-gray-streams
Install 1 Quicklisp release:
cxml
; Loading "cxml/dom"
;;; Checking for wide character support... WARNING: Lisp implementation doesn't use UTF-16, but accepts surrogate code points.
yes, using code points.
.
debugger invoked on a ASDF/FIND-COMPONENT:MISSING-COMPONENT in thread
#<THREAD "main thread" RUNNING {10005504C3}>:
Component "cxml/dom" not found
Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.
restarts (invokable by number or by possibly-abbreviated name):
0: [RETRY ] Retry ASDF operation.
1: [CLEAR-CONFIGURATION-AND-RETRY] Retry ASDF operation after resetting the
configuration.
2: Retry ASDF operation.
3: Retry ASDF operation after resetting the
configuration.
4: [ABORT ] Give up on "cxml/dom"
5: Give up on "cxml"
6: Exit debugger, returning to top level.
((:METHOD ASDF/OPERATE:OPERATE (SYMBOL T)) ASDF/LISP-ACTION:LOAD-OP "cxml/dom" :VERBOSE NIL) [fast-method]
error finding frame source: Bogus form-number: the source file has probably
changed too much to cope with.
source: NIL
0]
* (ql:quickload :klacks)
debugger invoked on a QUICKLISP-CLIENT:SYSTEM-NOT-FOUND in thread
#<THREAD "main thread" RUNNING {10005504C3}>:
System "klacks" not found
Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL.
restarts (invokable by number or by possibly-abbreviated name):
0: [CONTINUE] Try again
1: [ABORT ] Give up on "klacks"
2: Exit debugger, returning to top level.
((LABELS QUICKLISP-CLIENT::RECURSE :IN QUICKLISP-CLIENT::COMPUTE-LOAD-STRATEGY) "klacks")
source: (CERROR "Try again" 'SYSTEM-NOT-FOUND :NAME NAME)
【问题讨论】：
-
我强烈怀疑您的 SBCL 太旧了，您应该尝试使用当前的。
标签： xml common-lisp sbcl quicklisp asdf