如何解决在 Ocaml Camlp5 中未安装并且必须使用 Quotations
在 Ocaml 4 中,我必须在其 Quotation
和 Quotation.add
函数上使用 Quotation.ExStr
模块。看来我必须安装 Camlp5
库(似乎是一个预处理器)才能这样做。找到了很多关于 Camlp 的信息,比如:
- Camlp5:https://camlp5.readthedocs.io/en/latest/intro.html
- Camlp5:https://camlp5.github.io/doc/html/index.html
- Camlp4:https://caml.inria.fr/pub/docs/tutorial-camlp4/tutorial004.html
但是没有安装指南,所以我尝试了:opam install camlp5
结果:
┌─ The following actions failed
│ λ build conf-perl-ipc-system-simple 1
│ λ build conf-perl-string-shellquote 1
└─
╶─ No changes have been performed
所以一些依赖似乎不存在,我已经尝试过:opam depext --install camlp5
结果:
┌─ The following actions failed
│ λ build conf-perl-ipc-system-simple 1
│ λ build conf-perl-string-shellquote 1
└─
╶─ No changes have been performed
# Run eval $(opam env) to update the current shell environment
所以似乎不起作用。
两个命令的错误诊断是一样的:
The following actions will be performed:
∗ install conf-perl-string-shellquote 1 [required by camlp5]
∗ install conf-perl-ipc-system-simple 1 [required by camlp5]
∗ install camlp5 8.00.01
===== ∗ 3 =====
Do you want to continue? [Y/n] y
<><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><> ?
[camlp5.8.00.01] found in cache
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><> ?
[ERROR] The compilation of conf-perl-ipc-system-simple failed at
"/Users/.../.opam/opam-init/hooks/sandbox.sh build perl
-MIPC::System::Simple -e 1".
[ERROR] The compilation of conf-perl-string-shellquote failed at
"/Users/.../.opam/opam-init/hooks/sandbox.sh build perl
-MString::ShellQuote -e 1".
#=== ERROR while compiling conf-perl-string-shellquote.1 ======================#
# context 2.0.8 | macos/x86_64 | ocaml-base-compiler.4.10.2 | https://opam.ocaml.org#ff95b837
# path ~/.opam/4.10.2/.opam-switch/build/conf-perl-string-shellquote.1
# command ~/.opam/opam-init/hooks/sandbox.sh build perl -MString::ShellQuote -e 1
# exit-code 2
# env-file ~/.opam/log/conf-perl-string-shellquote-1585-1872ec.env
# output-file ~/.opam/log/conf-perl-string-shellquote-1585-1872ec.out
### output ###
# Can't locate String/ShellQuote.pm in @INC (you may need to install the String::ShellQuote module) (@INC contains: /Library/Perl/5.18/darwin-thread-multi-2level /Library/Perl/5.18 /Network/Library/Perl/5.18/darwin-thread-multi-2level /Network/Library/Perl/5.18 /Library/Perl/Updates/5.18.4 /System/Library/Perl/5.18/darwin-thread-multi-2level /System/Library/Perl/5.18 /System/Library/Perl/Extras[...]
# BEGIN failed--compilation aborted.
#=== ERROR while compiling conf-perl-ipc-system-simple.1 ======================#
# context 2.0.8 | macos/x86_64 | ocaml-base-compiler.4.10.2 | https://opam.ocaml.org#ff95b837
# path ~/.opam/4.10.2/.opam-switch/build/conf-perl-ipc-system-simple.1
# command ~/.opam/opam-init/hooks/sandbox.sh build perl -MIPC::System::Simple -e 1
# exit-code 2
# env-file ~/.opam/log/conf-perl-ipc-system-simple-1585-d2c37b.env
# output-file ~/.opam/log/conf-perl-ipc-system-simple-1585-d2c37b.out
### output ###
# Can't locate IPC/System/Simple.pm in @INC (you may need to install the IPC::System::Simple module) (@INC contains: /Library/Perl/5.18/darwin-thread-multi-2level /Library/Perl/5.18 /Network/Library/Perl/5.18/darwin-thread-multi-2level /Network/Library/Perl/5.18 /Library/Perl/Updates/5.18.4 /System/Library/Perl/5.18/darwin-thread-multi-2level /System/Library/Perl/5.18 /System/Library/Perl/Extra[...]
# BEGIN failed--compilation aborted.
几个小时以来,我一直在尝试类似的方法和替代方法,但无法实现。有什么帮助吗?
PS1:我在 MAC 工作。
PS2:如果有人想要,我这个问题的上下文是我想使用一个目录的功能 - 这对我来说是一个黑匣子 - 所有的例子都是用解析器编写的,比如 <<y+2=5>>
所以我不知道语法,必须实现才能使解析器运行。
EDIT 1(Ivg 提出的解决方案)
在尝试了 Ivg 提出的解决方案的两个命令后(在其中一个问题中回答 local::lib
,在其他问题中回答 yes
),当执行 {{ 1}}:
opam install camlp5
整个航站楼的位置:
<><> Error report <><><><><><><><><><><><><><><><><><><><><><><><><><><><><> ?
┌─ The following actions failed
│ λ build conf-perl-ipc-system-simple 1
└─
┌─ The following changes have been performed (the rest was aborted)
│ ∗ install conf-perl-string-shellquote 1
└─
编辑 2(已解决,重复)
突然就成功了。我又写了一次... ~ % opam install camlp5
The following actions will be performed:
∗ install conf-perl-string-shellquote 1 [required by camlp5]
∗ install conf-perl-ipc-system-simple 1 [required by camlp5]
∗ install camlp5 8.00.01
===== ∗ 3 =====
Do you want to continue? [Y/n] y
<><> Gathering sources ><><><><><><><><><><><><><><><><><><><><><><><><><><> ?
[camlp5.8.00.01] found in cache
<><> Processing actions <><><><><><><><><><><><><><><><><><><><><><><><><><> ?
[ERROR] The compilation of conf-perl-ipc-system-simple failed at
"/Users/.../.opam/opam-init/hooks/sandbox.sh build perl
-MIPC::System::Simple -e 1".
∗ installed conf-perl-string-shellquote.1
#=== ERROR while compiling conf-perl-ipc-system-simple.1 ======================#
# context 2.0.8 | macos/x86_64 | ocaml-base-compiler.4.10.2 | https://opam.ocaml.org#ff95b837
# path ~/.opam/4.10.2/.opam-switch/build/conf-perl-ipc-system-simple.1
# command ~/.opam/opam-init/hooks/sandbox.sh build perl -MIPC::System::Simple -e 1
# exit-code 2
# env-file ~/.opam/log/conf-perl-ipc-system-simple-20351-1872ec.env
# output-file ~/.opam/log/conf-perl-ipc-system-simple-20351-1872ec.out
### output ###
# Can't locate IPC/System/Simple.pm in @INC (you may need to install the IPC::System::Simple module) (@INC contains: /Library/Perl/5.18/darwin-thread-multi-2level /Library/Perl/5.18 /Network/Library/Perl/5.18/darwin-thread-multi-2level /Network/Library/Perl/5.18 /Library/Perl/Updates/5.18.4/darwin-thread-multi-2level /Library/Perl/Updates/5.18.4 /System/Library/Perl/5.18/darwin-thread-multi-2le[...]
# BEGIN failed--compilation aborted.
(现在没有问题了)然后写了sudo cpan IPC::System::Simple
。
无论如何,opam install conf-perl-ipc-system-simple
模块没有为我打开。
解决方法
错误消息表明您的 perl 安装缺少两个模块,String::ShellQuote
和 IPC::System::Simple
。由于 opam
不知道如何在 macOS 上执行此操作(选项太多),它只是表明缺少这些模块并且是 camlp5 安装所必需的,因此无法继续。现在是您的行动,您需要弄清楚如何使这两个模块可用于您的 perl 安装。
您可以尝试使用 CPAN,例如,(sudo
可能不是必需的,具体取决于您的配置)
sudo cpan IPC::System::Simple
sudo cpan String::ShellQuote
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