Vim script for automatically detecting indent settings
A Vim plugin, for automatically detecting indent settings. This plugin adds a :DetectIndent command, which tries to intelligently set the 'shiftwidth', 'expandtab' and 'tabstop' options based upon the existing settings in use in the active file.
You may wish to consider one of the many forks of this project. Be aware that some of these forks have merged patches that I have been ignoring for good reasons, and that long lists of special cases are not necessarily a good idea...
The following code should not set shiftwidth=1, based on the indentation of the multiline doc block, but only consider the "outer" level of the doc block.
<?php
/**
* foo
*/
function foo() {
bar();
}
Looking at the syntax of this block (on line 3) shows:
group: phpComment->Comment guifg=244(244) guibg=-1(-1)
(via SyntaxAttr script, https://github.com/vim-scripts/SyntaxAttr.vim)
I want to auto run detectindent when I open a file. It would be nice to have an option that I can pass for it to auto load. Is there a command I can put in my .vimrc to get this working until then?
Perl comments are from "#" until line end, like in most contemporary scripting languages.
some_statement(); # this comment lasts until the end of the lineFurthermore, the Perl interpreter skips over documentation written in the POD (Plain Old Documentation) format, so this should be treated like a comment, too. POD looks like this:
some_statement();
=pod
This is documentation.
=cut
some_other_statement();It is started by any POD command. Such commands always start with "=" and must always appear at the beginning of the line (without any whitespace before them, i.e. column 1). The regexp /^=/ detects POD commands reasonably reliably in Perl code.
A documentation text always ends with the command "=cut", so the end can be found by /^=cut/.
A complete reference of the POD format is available at http://perldoc.perl.org/perlpod.html
There appears to be an active fork, which has incorporated all the available patches: https://github.com/roryokane/detectindent (based on https://github.com/raymond-w-ko/detectindent).
Please consider linking to it from your README or something similar.
This error occurs in Vim 7.4.1584:
autocmd BufEnter * :DetectIndent
Error detected while processing BufEnter Auto commands for "*":
E116: Invalid arguments for function <SNR>21_DetectIndent
No error in Vim 7.4.1529.
Anything between should be ignored when determining indentation.
/* */ blocks should also be ignored in JavaScript files.
For example, a file starting with the following contents
<!doctype html>
<!--
* line starts with a space, several lines like it might follow
-->
<html>
<head>
<script type="text/javascript">
function func() {
if (true) { // line starts with a tab, and all lines following start with tabsis incorrectly parsed by Detect Indent:
Detected spaces and tabs; has_leading_tabs: 1, has_leading_spaces: 1, shortest_leading_spaces_run: 1, shortest_leading_spaces_idx: 3, longest_leading_spaces_run: 1
Initial buffer settings changed: tabstop changed from 4 to 2, shiftwidth changed from 4 to 1
I expect tabs since the entire file past the comment block on top uses tabs.
Also, is it necessary to check for filetype (HasCStyleComments) when checking for comment lines? Perhaps filetype checks should be removed. I could have a long multiline JavaScript comment with /* and */ in an html file that could throw off Detect Indent, for example.
CSS has C-style block comments /* ... */ only.
Can you change the plugin to force the tab expansion for mode like 'make' (which need TAB and not SPACE) ?
attaching patch for fix.
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