cmdline: how to expand `##` in-place?

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1
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In Ex mode, ## can be expanded to the files in the args list when files are expected, see :h cmdline-special

In Ex commands, at places where a file name can be **used**, the following
characters have a special meaning. These can also be used in the expression
function expand().

Like !ls ## will expand ## But echo ## will not.

However, if I am going to define my own command, how to tell vim that I want files here so please expand my ##?

Is there a way to expand them in place (like how zsh expands * when you press Tab after it)?

An example

command! -nargs=1 Echo :exe "echo '" . <q-args> . "'"

Now I want to run Echo I am here ## with ## expanded.

edited 3 hours ago

asked 4 hours ago

Liu Sha

339110

add a commentÂ |Â

up vote
1
down vote

favorite

In Ex mode, ## can be expanded to the files in the args list when files are expected, see :h cmdline-special

In Ex commands, at places where a file name can be **used**, the following
characters have a special meaning. These can also be used in the expression
function expand().

Like !ls ## will expand ## But echo ## will not.

However, if I am going to define my own command, how to tell vim that I want files here so please expand my ##?

Is there a way to expand them in place (like how zsh expands * when you press Tab after it)?

An example

command! -nargs=1 Echo :exe "echo '" . <q-args> . "'"

Now I want to run Echo I am here ## with ## expanded.

edited 3 hours ago

asked 4 hours ago

Liu Sha

339110

add a commentÂ |Â

up vote
1
down vote

favorite

In Ex mode, ## can be expanded to the files in the args list when files are expected, see :h cmdline-special

In Ex commands, at places where a file name can be **used**, the following
characters have a special meaning. These can also be used in the expression
function expand().

Like !ls ## will expand ## But echo ## will not.

However, if I am going to define my own command, how to tell vim that I want files here so please expand my ##?

Is there a way to expand them in place (like how zsh expands * when you press Tab after it)?

An example

command! -nargs=1 Echo :exe "echo '" . <q-args> . "'"

Now I want to run Echo I am here ## with ## expanded.

edited 3 hours ago

asked 4 hours ago

Liu Sha

339110

In Ex mode, ## can be expanded to the files in the args list when files are expected, see :h cmdline-special

In Ex commands, at places where a file name can be **used**, the following
characters have a special meaning. These can also be used in the expression
function expand().

Like !ls ## will expand ## But echo ## will not.

However, if I am going to define my own command, how to tell vim that I want files here so please expand my ##?

Is there a way to expand them in place (like how zsh expands * when you press Tab after it)?

An example

command! -nargs=1 Echo :exe "echo '" . <q-args> . "'"

Now I want to run Echo I am here ## with ## expanded.

cmdline

edited 3 hours ago

asked 4 hours ago

Liu Sha

339110

edited 3 hours ago

asked 4 hours ago

Liu Sha

339110

edited 3 hours ago

asked 4 hours ago

Liu Sha

339110

asked 4 hours ago

Liu Sha

339110

asked 4 hours ago

Liu Sha

339110

add a commentÂ |Â

1 Answer
1

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oldest

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up vote
3
down vote

You could use :h expand() in your command:

command! -nargs=+ Test echo expand("<args>")

This way :Test foo bar will echo foo bar and :Test ## will echo your argument list.

About the in-place expansion as far as I know this is not possible out of the box.

answered 4 hours ago

statoxâ™¦

24.2k659125

Thanks for your answer. I added an example, I want to achieve that.
â€“Â Liu Sha
3 hours ago

@LiuSha So something like command! -nargs=* Ls execute ":!ls " . expand("<args>")?
â€“Â statoxâ™¦
3 hours ago

Sorry to have confused you, Ls is not a good example, because it is a shell command, so that vim already knows it should expand it. Here my command is a general purpose command, sometimes I want to show ##, sometimes it is some other things, like options -x.
â€“Â Liu Sha
3 hours ago

@LiuSha Ok with your new example I see what you want to do. I'm not sure there is an elegant way to do it: maybe you could make the command call a function which will treat the arguments as a list and then expand them in a for loop, but that's not really efficient. Maybe someone will come up with a better solution :)
â€“Â statoxâ™¦
2 hours ago

add a commentÂ |Â

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up vote
3
down vote

You could use :h expand() in your command:

command! -nargs=+ Test echo expand("<args>")

This way :Test foo bar will echo foo bar and :Test ## will echo your argument list.

About the in-place expansion as far as I know this is not possible out of the box.

answered 4 hours ago

statoxâ™¦

24.2k659125

Thanks for your answer. I added an example, I want to achieve that.
â€“Â Liu Sha
3 hours ago

@LiuSha So something like command! -nargs=* Ls execute ":!ls " . expand("<args>")?
â€“Â statoxâ™¦
3 hours ago

Sorry to have confused you, Ls is not a good example, because it is a shell command, so that vim already knows it should expand it. Here my command is a general purpose command, sometimes I want to show ##, sometimes it is some other things, like options -x.
â€“Â Liu Sha
3 hours ago

@LiuSha Ok with your new example I see what you want to do. I'm not sure there is an elegant way to do it: maybe you could make the command call a function which will treat the arguments as a list and then expand them in a for loop, but that's not really efficient. Maybe someone will come up with a better solution :)
â€“Â statoxâ™¦
2 hours ago

add a commentÂ |Â

up vote
3
down vote

You could use :h expand() in your command:

command! -nargs=+ Test echo expand("<args>")

This way :Test foo bar will echo foo bar and :Test ## will echo your argument list.

About the in-place expansion as far as I know this is not possible out of the box.

answered 4 hours ago

statoxâ™¦

24.2k659125

Thanks for your answer. I added an example, I want to achieve that.
â€“Â Liu Sha
3 hours ago

@LiuSha So something like command! -nargs=* Ls execute ":!ls " . expand("<args>")?
â€“Â statoxâ™¦
3 hours ago

Sorry to have confused you, Ls is not a good example, because it is a shell command, so that vim already knows it should expand it. Here my command is a general purpose command, sometimes I want to show ##, sometimes it is some other things, like options -x.
â€“Â Liu Sha
3 hours ago

@LiuSha Ok with your new example I see what you want to do. I'm not sure there is an elegant way to do it: maybe you could make the command call a function which will treat the arguments as a list and then expand them in a for loop, but that's not really efficient. Maybe someone will come up with a better solution :)
â€“Â statoxâ™¦
2 hours ago

add a commentÂ |Â

up vote
3
down vote

You could use :h expand() in your command:

command! -nargs=+ Test echo expand("<args>")

This way :Test foo bar will echo foo bar and :Test ## will echo your argument list.

About the in-place expansion as far as I know this is not possible out of the box.

answered 4 hours ago

statoxâ™¦

24.2k659125

You could use :h expand() in your command:

command! -nargs=+ Test echo expand("<args>")

This way :Test foo bar will echo foo bar and :Test ## will echo your argument list.

About the in-place expansion as far as I know this is not possible out of the box.

answered 4 hours ago

statoxâ™¦

24.2k659125

answered 4 hours ago

statoxâ™¦

24.2k659125

answered 4 hours ago

statoxâ™¦

24.2k659125

answered 4 hours ago

statoxâ™¦

24.2k659125

Thanks for your answer. I added an example, I want to achieve that.
â€“Â Liu Sha
3 hours ago

@LiuSha So something like command! -nargs=* Ls execute ":!ls " . expand("<args>")?
â€“Â statoxâ™¦
3 hours ago

Sorry to have confused you, Ls is not a good example, because it is a shell command, so that vim already knows it should expand it. Here my command is a general purpose command, sometimes I want to show ##, sometimes it is some other things, like options -x.
â€“Â Liu Sha
3 hours ago

@LiuSha Ok with your new example I see what you want to do. I'm not sure there is an elegant way to do it: maybe you could make the command call a function which will treat the arguments as a list and then expand them in a for loop, but that's not really efficient. Maybe someone will come up with a better solution :)
â€“Â statoxâ™¦
2 hours ago

add a commentÂ |Â

Thanks for your answer. I added an example, I want to achieve that.
â€“Â Liu Sha
3 hours ago

@LiuSha So something like command! -nargs=* Ls execute ":!ls " . expand("<args>")?
â€“Â statoxâ™¦
3 hours ago

Sorry to have confused you, Ls is not a good example, because it is a shell command, so that vim already knows it should expand it. Here my command is a general purpose command, sometimes I want to show ##, sometimes it is some other things, like options -x.
â€“Â Liu Sha
3 hours ago

@LiuSha Ok with your new example I see what you want to do. I'm not sure there is an elegant way to do it: maybe you could make the command call a function which will treat the arguments as a list and then expand them in a for loop, but that's not really efficient. Maybe someone will come up with a better solution :)
â€“Â statoxâ™¦
2 hours ago

Thanks for your answer. I added an example, I want to achieve that.
â€“Â Liu Sha
3 hours ago

@LiuSha So something like command! -nargs=* Ls execute ":!ls " . expand("<args>")?
â€“Â statoxâ™¦
3 hours ago

Sorry to have confused you, Ls is not a good example, because it is a shell command, so that vim already knows it should expand it. Here my command is a general purpose command, sometimes I want to show ##, sometimes it is some other things, like options -x.
â€“Â Liu Sha
3 hours ago

@LiuSha Ok with your new example I see what you want to do. I'm not sure there is an elegant way to do it: maybe you could make the command call a function which will treat the arguments as a list and then expand them in a for loop, but that's not really efficient. Maybe someone will come up with a better solution :)
â€“Â statoxâ™¦
2 hours ago

add a commentÂ |Â

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