VIM: Determine if function called from visual-block mode -

-

from within function, how can determined if function called visual-block mode. involves calling function both from:

  • normal-mode mapping
  • command-line mode

for precise function, luckily behaves identically under either normal/command mode or visual-mode single line selected. more 1 line - a:firstline/lastline - function not called normal mode.

the problem need know if in visual-block mode, single line or not.

i've tried following no avail:

function! t() range     echo [a:firstline, a:lastline]     echo [getpos("'<")[1:2], getpos("'>")[1:2]]     echo visualmode()     echo mode() endfun vnoremap tt :call t()<cr> nnoremap tt :call t()<cr>

output visual-line mode (notice crazy max-int output):

[3, 4] [[3, 1], [4, 2147483647]] v n

i require answers of variety either "can't done" or "step-by-step". no vague do-this do-that finish this... i'm tired of jumping through obscure vim goldberg-esque loopholes accomplish simple tasks not provided built-in functionality, , vim-fu still young.

just invoke function this:

vnoremap tt :call t(visualmode())<cr> nnoremap tt :call t('')<cr>

with empty argument, function invoked normal mode. else, passed character represents visual mode (i.e. v vs. v vs. ^v).


Comments

Post a Comment

Popular posts from this blog

node.js - Mongoose: Cast to ObjectId failed for value on newly created object after setting the value -

-
this question has answer here: what's mongoose error cast objectid failed value xxx @ path “_id”? 7 answers even though has been asked many times because entity has no valid objectid field. i came across situation objectid set value can casted objectid still error. the schema: var serviceschema = parammongoose.schema({ servicename:{ type: parammongoose.schema.types.objectid , ref: 'servicenames',required:true } }); pseudo code: servicefromdb=new service({servicename:'some name'}); servicefromdb.servicename='000000000000000000000001'; servicefromdb.save(function(paramerror,paramdata){ if(paramerror){ console.log('but but...',servicefromdb,paramerror) } }); the output of code is: but but... { servicename: 000000000000000000000001, _id: 55079a90286f49280364f78b } { [casterror: cast objectid faile...
Read more

gradle error "Cannot convert the provided notation to a File or URI" -

-
i have defined 2 system properties in gradle.properties: systemprop.builddir=build systemprop.cfgdir=build\\cfg and have following task defined in build.gradle: task clean(group:'clean',description:'clean project') << { ant.sequential { delete(dir: system.properties.builddir) mkdir(dir: system.properties.builddir) delete(dir: system.properties.cfgdir) mkdir(dir: system.properties.cfgdir) } } this generates following error: execution failed task ':clean'. > cannot convert provided notation file or uri: {dir=build}. following types/formats supported: - string or charsequence path, e.g 'src/main/java' or '/usr/include' - string or charsequence uri, e.g 'file:/usr/include' - file instance. - uri or url instance. but equivalent block of code not generate error , works expected: task clean(group:'clean',description:'clean project') << { ...
Read more

python - NameError: name 'subprocess' is not defined -

-
i'm trying make rng website: http://jamesdotcom.com/?p=417 . when run following code: captureimage = subprocess.popen( [ "fswebcam", "-r", "356x292", "-d", "/dev/video0", "static.jpg", "--skip", "10" ], stdout=devnull, stderr=devnull) captureimage.communicate() i following error message: nameerror: name 'subprocess' not defined what should do? thanks have imported first? import subprocess captureimage = subprocess.popen(["fswebcam", ...) subprocess included in python standard library since python 2.4. should not necessary install it.
Read more