From ebc0652adc0dab963ab2fc9196fb4999e789b91a Mon Sep 17 00:00:00 2001 From: Salt Date: Wed, 29 Nov 2017 11:16:16 -0600 Subject: [PATCH] Vim: Add python indentation extension --- .vim/bundle/indentpython/autoload/indent.vim | 196 +++++++++++++++++++ 1 file changed, 196 insertions(+) create mode 100644 .vim/bundle/indentpython/autoload/indent.vim diff --git a/.vim/bundle/indentpython/autoload/indent.vim b/.vim/bundle/indentpython/autoload/indent.vim new file mode 100644 index 00000000..32c773cf --- /dev/null +++ b/.vim/bundle/indentpython/autoload/indent.vim @@ -0,0 +1,196 @@ +" Python indent file +" Language: Python +" Maintainer: Eric Mc Sween +" Original Author: David Bustos +" Last Change: 2004 Jun 07 + +" Only load this indent file when no other was loaded. +if exists("b:did_indent") + finish +endif +let b:did_indent = 1 + +setlocal expandtab +setlocal nolisp +setlocal autoindent +setlocal indentexpr=GetPythonIndent(v:lnum) +setlocal indentkeys=!^F,o,O,<:>,0),0],0},=elif,=except + +let s:maxoff = 50 + +" Find backwards the closest open parenthesis/bracket/brace. +function! s:SearchParensPair() + let line = line('.') + let col = col('.') + + " Skip strings and comments and don't look too far + let skip = "line('.') < " . (line - s:maxoff) . " ? dummy :" . + \ 'synIDattr(synID(line("."), col("."), 0), "name") =~? ' . + \ '"string\\|comment"' + + " Search for parentheses + call cursor(line, col) + let parlnum = searchpair('(', '', ')', 'bW', skip) + let parcol = col('.') + + " Search for brackets + call cursor(line, col) + let par2lnum = searchpair('\[', '', '\]', 'bW', skip) + let par2col = col('.') + + " Search for braces + call cursor(line, col) + let par3lnum = searchpair('{', '', '}', 'bW', skip) + let par3col = col('.') + + " Get the closest match + if par2lnum > parlnum || (par2lnum == parlnum && par2col > parcol) + let parlnum = par2lnum + let parcol = par2col + endif + if par3lnum > parlnum || (par3lnum == parlnum && par3col > parcol) + let parlnum = par3lnum + let parcol = par3col + endif + + " Put the cursor on the match + if parlnum > 0 + call cursor(parlnum, parcol) + endif + return parlnum +endfunction + +" Find the start of a multi-line statement +function! s:StatementStart(lnum) + let lnum = a:lnum + while 1 + if getline(lnum - 1) =~ '\\$' + let lnum = lnum - 1 + else + call cursor(lnum, 1) + let maybe_lnum = s:SearchParensPair() + if maybe_lnum < 1 + return lnum + else + let lnum = maybe_lnum + endif + endif + endwhile +endfunction + +" Find the block starter that matches the current line +function! s:BlockStarter(lnum, block_start_re) + let lnum = a:lnum + let maxindent = 10000 " whatever + while lnum > 1 + let lnum = prevnonblank(lnum - 1) + if indent(lnum) < maxindent + if getline(lnum) =~ a:block_start_re + return lnum + else + let maxindent = indent(lnum) + " It's not worth going further if we reached the top level + if maxindent == 0 + return -1 + endif + endif + endif + endwhile + return -1 +endfunction + +function! GetPythonIndent(lnum) + + " First line has indent 0 + if a:lnum == 1 + return 0 + endif + + " If we can find an open parenthesis/bracket/brace, line up with it. + call cursor(a:lnum, 1) + let parlnum = s:SearchParensPair() + if parlnum > 0 + let parcol = col('.') + let closing_paren = match(getline(a:lnum), '^\s*[])}]') != -1 + if match(getline(parlnum), '[([{]\s*$', parcol - 1) != -1 + if closing_paren + return indent(parlnum) + else + return indent(parlnum) + &shiftwidth + endif + else + if closing_paren + return parcol - 1 + else + return parcol + endif + endif + endif + + " Examine this line + let thisline = getline(a:lnum) + let thisindent = indent(a:lnum) + + " If the line starts with 'elif' or 'else', line up with 'if' or 'elif' + if thisline =~ '^\s*\(elif\|else\)\>' + let bslnum = s:BlockStarter(a:lnum, '^\s*\(if\|elif\)\>') + if bslnum > 0 + return indent(bslnum) + else + return -1 + endif + endif + + " If the line starts with 'except' or 'finally', line up with 'try' + " or 'except' + if thisline =~ '^\s*\(except\|finally\)\>' + let bslnum = s:BlockStarter(a:lnum, '^\s*\(try\|except\)\>') + if bslnum > 0 + return indent(bslnum) + else + return -1 + endif + endif + + " Examine previous line + let plnum = a:lnum - 1 + let pline = getline(plnum) + let sslnum = s:StatementStart(plnum) + + " If the previous line is blank, keep the same indentation + if pline =~ '^\s*$' + return -1 + endif + + " If this line is explicitly joined, try to find an indentation that looks + " good. + if pline =~ '\\$' + let compound_statement = '^\s*\(if\|while\|for\s.*\sin\|except\)\s*' + let maybe_indent = matchend(getline(sslnum), compound_statement) + if maybe_indent != -1 + return maybe_indent + else + return indent(sslnum) + &sw * 2 + endif + endif + + " If the previous line ended with a colon, indent relative to + " statement start. + if pline =~ ':\s*$' + return indent(sslnum) + &sw + endif + + " If the previous line was a stop-execution statement or a pass + if getline(sslnum) =~ '^\s*\(break\|continue\|raise\|return\|pass\)\>' + " See if the user has already dedented + if indent(a:lnum) > indent(sslnum) - &sw + " If not, recommend one dedent + return indent(sslnum) - &sw + endif + " Otherwise, trust the user + return -1 + endif + + " In all other cases, line up with the start of the previous statement. + return indent(sslnum) +endfunction