Mfcttrf

BGP convergence issue

Soft question: Examples where lack of mathematical rigour cause security breaches?

Preventing Employees from either switching to Competitors or Opening Their Own Business

When conversion from Integer to Single may lose precision

Why doesn’t a normal window produce an apparent rainbow?

Passing multiple files through stdin (over ssh)

At what point in time did Dumbledore ask Snape for this favor?

Is it possible to 'live off the sea'

Find the Factorial From the Given Prime Relationship

Was there a priest on the Titanic who stayed on the ship giving confession to as many as he could?

Why only the fundamental frequency component is said to give useful power?

Inconsistent behavior of compiler optimization of unused string

What is the `some` keyword in SwiftUI

Were Alexander the Great and Hephaestion lovers?

How to build suspense or so to establish and justify xenophobia of characters in the eyes of the reader?

How to generate all commutative pairings of list elements?

Should an arbiter claim draw at a K+R vs K+R endgame?

How Can I Tell The Difference Between Unmarked Sugar and Stevia?

Smooth switching between 12 V batteries, with a toggle switch

Can an Aarakocra use a shield while flying?

Can the poison from Kingsmen be concocted?

Should I compare a std::string to "string" or "string"s?

Compiling c files on ubuntu and using the executable on Windows

Can a black dragonborn's acid breath weapon destroy objects?

Using a special key in function

Using an environment variable name as function argumentEscape return value key in mapping functionHow to escape strings containing keys (when mapping) or call function with noremapCarriage return as argument breaks the functionExecute normal is inserting “<tab>” instead of hitting tab keyE129 when calling the function by call()Converting from A to B using mapped keyHow to have vnoremap call function once?Why do functions in Vimscript require a “call” statement?Vim+Tmux: How to switch between Tmux Windows and Vim Tab Pages Seamlessly using the Alt Key?

1

I am trying to remap <PageUp> key to call this function:

function! PageUp()
 let l:line = line('.')
 if(l:line != 1)
 if(l:line != winline())
 :set syntax=off
 <PageUp>
 :set syntax=on
 else
 normal! 1G
 endif
 endif
endfunction

but gvim complains that I cannot do it.

So what is the proper way to use the keys in a function ?

vimscript

share|improve this question

asked 8 hours ago

simo-zzsimo-zz

20418

add a comment | 

1

I am trying to remap <PageUp> key to call this function:

function! PageUp()
 let l:line = line('.')
 if(l:line != 1)
 if(l:line != winline())
 :set syntax=off
 <PageUp>
 :set syntax=on
 else
 normal! 1G
 endif
 endif
endfunction

but gvim complains that I cannot do it.

So what is the proper way to use the keys in a function ?

vimscript

share|improve this question

asked 8 hours ago

simo-zzsimo-zz

20418

add a comment | 

I am trying to remap <PageUp> key to call this function:

function! PageUp()
 let l:line = line('.')
 if(l:line != 1)
 if(l:line != winline())
 :set syntax=off
 <PageUp>
 :set syntax=on
 else
 normal! 1G
 endif
 endif
endfunction

but gvim complains that I cannot do it.

So what is the proper way to use the keys in a function ?

vimscript

share|improve this question

asked 8 hours ago

simo-zzsimo-zz

20418

function! PageUp()
 let l:line = line('.')
 if(l:line != 1)
 if(l:line != winline())
 :set syntax=off
 <PageUp>
 :set syntax=on
 else
 normal! 1G
 endif
 endif
endfunction

share|improve this question

asked 8 hours ago

simo-zzsimo-zz

20418

share|improve this question

asked 8 hours ago

simo-zzsimo-zz

20418

asked 8 hours ago

simo-zzsimo-zz

20418

asked 8 hours ago

simo-zzsimo-zz

20418

2 Answers
2

active

oldest

votes

2

First of all, you use the PageUp key in Normal mode so the underlying functionality is a Normal mode command. You can't use such commands directly while in an Ex command-line or function/script. You need to use the Ex command :norm for this.

Further, to use "key codes" (:h key-codes) of non-printing characters like <PageUp> you need to construct the :norm command as an expression and pass it to the :exe command (see last paragraph of :h :norm).

That gives us:

:exe "norm <PageUp>"

The double quotes are required as is the to escape the keycode and indicate that you want the special meaning not the literal string "<PageUp>".

(Note: Usually we want to use norm! instead of norm in order to avoid conflicts with mappings but that's not a critical element of this answer so omitted.)

share|improve this answer

edited 6 hours ago

answered 6 hours ago

B LayerB Layer

6,2421620

add a comment | 

1

To send special key to :normal, you need to get it's raw code by using "<key>" notation.

exec "norm! <PageUp>"

You can also use raw code directly if you want(not recommended, hard to read):

norm! <80>kP
 ^----------<80> is 0x80

<80>kP is raw code of <PageUp>, you can enter it like this in normal mode:

"="<PageUp>"<cr>p
 ^----------press carriage return

If raw code of the key doesn't start with 0x80, it's the same as terminal code (not sure), you can use the :h i_CTRL-V to insert terminal code:

norm! <c-v><c-p>
 ^------------press ctrl-v ctrl-p

• :h :exec


• :h quote=


• :h string

share|improve this answer

edited 2 hours ago

answered 6 hours ago

dedowsdidedowsdi

1,434411

add a comment | 

Your Answer

StackExchange.ready(function()
var channelOptions =
tags: "".split(" "),
id: "599"
;
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function()
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled)
StackExchange.using("snippets", function()
createEditor();
);

else
createEditor();

);

function createEditor()
StackExchange.prepareEditor(
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader:
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
,
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
);



);

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function ()
StackExchange.helpers.onClickDraftSave('#login-link');
);

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function ()
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fvi.stackexchange.com%2fquestions%2f20206%2fusing-a-special-key-in-function%23new-answer', 'question_page');

);

Post as a guest

Name

Email

Required, but never shown

2

First of all, you use the PageUp key in Normal mode so the underlying functionality is a Normal mode command. You can't use such commands directly while in an Ex command-line or function/script. You need to use the Ex command :norm for this.

Further, to use "key codes" (:h key-codes) of non-printing characters like <PageUp> you need to construct the :norm command as an expression and pass it to the :exe command (see last paragraph of :h :norm).

That gives us:

:exe "norm <PageUp>"

The double quotes are required as is the to escape the keycode and indicate that you want the special meaning not the literal string "<PageUp>".

(Note: Usually we want to use norm! instead of norm in order to avoid conflicts with mappings but that's not a critical element of this answer so omitted.)

share|improve this answer

edited 6 hours ago

answered 6 hours ago

B LayerB Layer

6,2421620

add a comment | 

2

First of all, you use the PageUp key in Normal mode so the underlying functionality is a Normal mode command. You can't use such commands directly while in an Ex command-line or function/script. You need to use the Ex command :norm for this.

Further, to use "key codes" (:h key-codes) of non-printing characters like <PageUp> you need to construct the :norm command as an expression and pass it to the :exe command (see last paragraph of :h :norm).

That gives us:

:exe "norm <PageUp>"

The double quotes are required as is the to escape the keycode and indicate that you want the special meaning not the literal string "<PageUp>".

(Note: Usually we want to use norm! instead of norm in order to avoid conflicts with mappings but that's not a critical element of this answer so omitted.)

share|improve this answer

edited 6 hours ago

answered 6 hours ago

B LayerB Layer

6,2421620

add a comment | 

First of all, you use the PageUp key in Normal mode so the underlying functionality is a Normal mode command. You can't use such commands directly while in an Ex command-line or function/script. You need to use the Ex command :norm for this.

Further, to use "key codes" (:h key-codes) of non-printing characters like <PageUp> you need to construct the :norm command as an expression and pass it to the :exe command (see last paragraph of :h :norm).

That gives us:

:exe "norm <PageUp>"

The double quotes are required as is the to escape the keycode and indicate that you want the special meaning not the literal string "<PageUp>".

(Note: Usually we want to use norm! instead of norm in order to avoid conflicts with mappings but that's not a critical element of this answer so omitted.)

share|improve this answer

edited 6 hours ago

answered 6 hours ago

B LayerB Layer

6,2421620

:exe "norm <PageUp>"

share|improve this answer

edited 6 hours ago

answered 6 hours ago

B LayerB Layer

6,2421620

answered 6 hours ago

B LayerB Layer

6,2421620

answered 6 hours ago

B LayerB Layer

6,2421620

1

To send special key to :normal, you need to get it's raw code by using "<key>" notation.

exec "norm! <PageUp>"

You can also use raw code directly if you want(not recommended, hard to read):

norm! <80>kP
 ^----------<80> is 0x80

<80>kP is raw code of <PageUp>, you can enter it like this in normal mode:

"="<PageUp>"<cr>p
 ^----------press carriage return

If raw code of the key doesn't start with 0x80, it's the same as terminal code (not sure), you can use the :h i_CTRL-V to insert terminal code:

norm! <c-v><c-p>
 ^------------press ctrl-v ctrl-p

• :h :exec


• :h quote=


• :h string

share|improve this answer

edited 2 hours ago

answered 6 hours ago

dedowsdidedowsdi

1,434411

add a comment | 

1

To send special key to :normal, you need to get it's raw code by using "<key>" notation.

exec "norm! <PageUp>"

You can also use raw code directly if you want(not recommended, hard to read):

norm! <80>kP
 ^----------<80> is 0x80

<80>kP is raw code of <PageUp>, you can enter it like this in normal mode:

"="<PageUp>"<cr>p
 ^----------press carriage return

If raw code of the key doesn't start with 0x80, it's the same as terminal code (not sure), you can use the :h i_CTRL-V to insert terminal code:

norm! <c-v><c-p>
 ^------------press ctrl-v ctrl-p

• :h :exec


• :h quote=


• :h string

share|improve this answer

edited 2 hours ago

answered 6 hours ago

dedowsdidedowsdi

1,434411

add a comment | 

To send special key to :normal, you need to get it's raw code by using "<key>" notation.

exec "norm! <PageUp>"

You can also use raw code directly if you want(not recommended, hard to read):

norm! <80>kP
 ^----------<80> is 0x80

<80>kP is raw code of <PageUp>, you can enter it like this in normal mode:

"="<PageUp>"<cr>p
 ^----------press carriage return

If raw code of the key doesn't start with 0x80, it's the same as terminal code (not sure), you can use the :h i_CTRL-V to insert terminal code:

norm! <c-v><c-p>
 ^------------press ctrl-v ctrl-p

• :h :exec


• :h quote=


• :h string

share|improve this answer

edited 2 hours ago

answered 6 hours ago

dedowsdidedowsdi

1,434411

exec "norm! <PageUp>"

norm! <80>kP
 ^----------<80> is 0x80

"="<PageUp>"<cr>p
 ^----------press carriage return

norm! <c-v><c-p>
 ^------------press ctrl-v ctrl-p

share|improve this answer

edited 2 hours ago

answered 6 hours ago

dedowsdidedowsdi

1,434411

answered 6 hours ago

dedowsdidedowsdi

1,434411

answered 6 hours ago

dedowsdidedowsdi

1,434411