special characters - How to use '^@' in Vim scripts? -

-

i'm trying work around problem using ^@ (i.e., <ctrl-@>) characters in vim scripts. can insert them script, when script runs seems line truncated @ point ^@ located.

my kludgy solution far have ^@ stored in variable, reference variable in script whenever have quoted literal ^@. can tell me what's going on here? there better way around problem?

that 1 reason why never use raw special character values in scripts. while ^@ not work, string <c-@> in mappings works expected, may use 1 of

nnoremap <c-@> {rhs} nnoremap <nul> {rhs}

it strange, cannot use <char-0x0> here. notes null byte in strings:

  1. inserting null byte string truncates it: vim uses old c-style strigs end null byte, cannot appear in strings. these strings inefficient, if want generate large text, try accumulating list of lines (using setline fast buffer represented list of lines).
  2. most functions return list of strings (like readfile, getline(start, end)) or take list of strings (like writefile, setline, append) treat \n (nl) null. internal representation of buffer lines, see :h nl-used-for-nul.
  3. if try insert \n character command-line, null shown (but newline). if want edit file has \n in filename (it possible on *nix), need prepend newline backslash.

Comments

Post a Comment

Popular posts from this blog

android - Spacing between the stars of a rating bar? -

-
ho can set spacing beween stars? thats ratingbar: ratingbar = (ratingbar) inflater.inflate(r.layout.ratingbar, null); ratingbar.setlayoutparams(new layoutparams(layoutparams.wrap_content, layoutparams.wrap_content)); the layout: <?xml version="1.0" encoding="utf-8"?> <ratingbar xmlns:android="http://schemas.android.com/apk/res/android" style="@style/mystyle" android:layout_alignparentright="true" android:layout_height="19dp" android:layout_width="wrap_content" android:numstars="5"> </ratingbar> the style: <style name="mystyle" parent="@android:style/widget.ratingbar"> <item name="android:progressdrawable">@drawable/android_r2_ratingstar_yellow</item> <item name="android:indeterminatedrawable">@drawable/android_r2_ratingstar_grey</item> </style> thanks, cheers you have ...
Read more

html - Instapaper-like algorithm -

-
does of algorithm extracts contents webpage? instapaper ? there 2 steps instapaper does: find main content block on page (excluding headers, footers, menus etc) from content block extract , format text to find content block (typically html block element, div containing key page text content) instapaper uses algorithm 1 used readability . can @ source of readability.js see what's going on, @ core tries find area on page highest text/link ratio, although has other simple scoring metrics (e.g. off top of head, things ratio of text commas, para elements etc) go heuristics. once have identified root node element, relevant content, you'll need format it, if want can pull node element containing text out of source document , insert yours, in reality you'll want remove existing styles , apply own, standard , feel. if want output nice text-only can use jericho's renderer . update1 : should mention else instapaper - follow 'pagination' links (...
Read more

c# - How to execute a particular part of code asynchronously in a class -

-
i creating speech recognition engine that's going respond user commands.i have created button enable , disable speech recognition per user convenience.i have used dispose() of speech engine disable speech recoginition.here code private void button1_click(object sender, routedeventargs e) { engineon = !engineon; if (engineon) { speechengine = speech.createspeechengine(); //speech class creates , returns new speech engine. speechengine.audiolevelupdated += new eventhandler<audiolevelupdatedeventargs>(speechengine_audiolevelupdated); // use system's default microphone speechengine.setinputtodefaultaudiodevice(); speechengine.loadgrammar(new dictationgrammar()); // start listening speechengine.recognizeasync(recognizemode.multiple); } else { speechclass.myengine.dispose(); } } but disposal of speech obj...
Read more