| " Support for Python indenting, see runtime/indent/python.vim |
| |
| let s:keepcpo= &cpo |
| set cpo&vim |
| |
| " need to inspect some old g:pyindent_* variables to be backward compatible |
| let g:python_indent = extend(get(g:, 'python_indent', {}), #{ |
| \ closed_paren_align_last_line: v:true, |
| \ open_paren: get(g:, 'pyindent_open_paren', 'shiftwidth() * 2'), |
| \ nested_paren: get(g:, 'pyindent_nested_paren', 'shiftwidth()'), |
| \ continue: get(g:, 'pyindent_continue', 'shiftwidth() * 2'), |
| "\ searchpair() can be slow, limit the time to 150 msec or what is put in |
| "\ g:python_indent.searchpair_timeout |
| \ searchpair_timeout: get(g:, 'pyindent_searchpair_timeout', 150), |
| "\ Identing inside parentheses can be very slow, regardless of the searchpair() |
| "\ timeout, so let the user disable this feature if he doesn't need it |
| \ disable_parentheses_indenting: get(g:, 'pyindent_disable_parentheses_indenting', v:false), |
| \ }, 'keep') |
| |
| let s:maxoff = 50 " maximum number of lines to look backwards for () |
| |
| function s:SearchBracket(fromlnum, flags) |
| " VIM_INDENT_TEST_TRACE_START |
| return searchpairpos('[[({]', '', '[])}]', a:flags, |
| \ {-> synstack('.', col('.')) |
| \ ->indexof({_, id -> synIDattr(id, 'name') =~ '\%(Comment\|Todo\|String\)$'}) >= 0}, |
| \ [0, a:fromlnum - s:maxoff]->max(), g:python_indent.searchpair_timeout) |
| " VIM_INDENT_TEST_TRACE_END python#s:SearchBracket |
| endfunction |
| |
| " See if the specified line is already user-dedented from the expected value. |
| function s:Dedented(lnum, expected) |
| return indent(a:lnum) <= a:expected - shiftwidth() |
| endfunction |
| |
| " Some other filetypes which embed Python have slightly different indent |
| " rules (e.g. bitbake). Those filetypes can pass an extra funcref to this |
| " function which is evaluated below. |
| function python#GetIndent(lnum, ...) |
| let ExtraFunc = a:0 > 0 ? a:1 : 0 |
| |
| " If this line is explicitly joined: If the previous line was also joined, |
| " line it up with that one, otherwise add two 'shiftwidth' |
| if getline(a:lnum - 1) =~ '\\$' |
| if a:lnum > 1 && getline(a:lnum - 2) =~ '\\$' |
| return indent(a:lnum - 1) |
| endif |
| return indent(a:lnum - 1) + get(g:, 'pyindent_continue', g:python_indent.continue)->eval() |
| endif |
| |
| " If the start of the line is in a string don't change the indent. |
| if has('syntax_items') |
| \ && synIDattr(synID(a:lnum, 1, 1), "name") =~ "String$" |
| return -1 |
| endif |
| |
| " Search backwards for the previous non-empty line. |
| let plnum = prevnonblank(v:lnum - 1) |
| |
| if plnum == 0 |
| " This is the first non-empty line, use zero indent. |
| return 0 |
| endif |
| |
| if g:python_indent.disable_parentheses_indenting == 1 |
| let plindent = indent(plnum) |
| let plnumstart = plnum |
| else |
| " Indent inside parens. |
| " Align with the open paren unless it is at the end of the line. |
| " E.g. |
| " open_paren_not_at_EOL(100, |
| " (200, |
| " 300), |
| " 400) |
| " open_paren_at_EOL( |
| " 100, 200, 300, 400) |
| call cursor(a:lnum, 1) |
| let [parlnum, parcol] = s:SearchBracket(a:lnum, 'nbW') |
| if parlnum > 0 |
| if parcol != col([parlnum, '$']) - 1 |
| return parcol |
| elseif getline(a:lnum) =~ '^\s*[])}]' && !g:python_indent.closed_paren_align_last_line |
| return indent(parlnum) |
| endif |
| endif |
| |
| call cursor(plnum, 1) |
| |
| " If the previous line is inside parenthesis, use the indent of the starting |
| " line. |
| let [parlnum, _] = s:SearchBracket(plnum, 'nbW') |
| if parlnum > 0 |
| if a:0 > 0 && ExtraFunc(parlnum) |
| " We may have found the opening brace of a bitbake Python task, e.g. 'python do_task {' |
| " If so, ignore it here - it will be handled later. |
| let parlnum = 0 |
| let plindent = indent(plnum) |
| let plnumstart = plnum |
| else |
| let plindent = indent(parlnum) |
| let plnumstart = parlnum |
| endif |
| else |
| let plindent = indent(plnum) |
| let plnumstart = plnum |
| endif |
| |
| " When inside parenthesis: If at the first line below the parenthesis add |
| " two 'shiftwidth', otherwise same as previous line. |
| " i = (a |
| " + b |
| " + c) |
| call cursor(a:lnum, 1) |
| let [p, _] = s:SearchBracket(a:lnum, 'bW') |
| if p > 0 |
| if a:0 > 0 && ExtraFunc(p) |
| " Currently only used by bitbake |
| " Handle first non-empty line inside a bitbake Python task |
| if p == plnum |
| return shiftwidth() |
| endif |
| |
| " Handle the user actually trying to close a bitbake Python task |
| let line = getline(a:lnum) |
| if line =~ '^\s*}' |
| return -2 |
| endif |
| |
| " Otherwise ignore the brace |
| let p = 0 |
| else |
| if p == plnum |
| " When the start is inside parenthesis, only indent one 'shiftwidth'. |
| let [pp, _] = s:SearchBracket(a:lnum, 'bW') |
| if pp > 0 |
| return indent(plnum) |
| \ + get(g:, 'pyindent_nested_paren', g:python_indent.nested_paren)->eval() |
| endif |
| return indent(plnum) |
| \ + get(g:, 'pyindent_open_paren', g:python_indent.open_paren)->eval() |
| endif |
| if plnumstart == p |
| return indent(plnum) |
| endif |
| return plindent |
| endif |
| endif |
| endif |
| |
| |
| " Get the line and remove a trailing comment. |
| " Use syntax highlighting attributes when possible. |
| let pline = getline(plnum) |
| let pline_len = strlen(pline) |
| if has('syntax_items') |
| " If the last character in the line is a comment, do a binary search for |
| " the start of the comment. synID() is slow, a linear search would take |
| " too long on a long line. |
| if synstack(plnum, pline_len) |
| \ ->indexof({_, id -> synIDattr(id, 'name') =~ '\%(Comment\|Todo\)$'}) >= 0 |
| let min = 1 |
| let max = pline_len |
| while min < max |
| let col = (min + max) / 2 |
| if synstack(plnum, col) |
| \ ->indexof({_, id -> synIDattr(id, 'name') =~ '\%(Comment\|Todo\)$'}) >= 0 |
| let max = col |
| else |
| let min = col + 1 |
| endif |
| endwhile |
| let pline = strpart(pline, 0, min - 1) |
| endif |
| else |
| let col = 0 |
| while col < pline_len |
| if pline[col] == '#' |
| let pline = strpart(pline, 0, col) |
| break |
| endif |
| let col = col + 1 |
| endwhile |
| endif |
| |
| " If the previous line ended with a colon, indent this line |
| if pline =~ ':\s*$' |
| return plindent + shiftwidth() |
| endif |
| |
| " If the previous line was a stop-execution statement... |
| if getline(plnum) =~ '^\s*\(break\|continue\|raise\|return\|pass\)\>' |
| " See if the user has already dedented |
| if s:Dedented(a:lnum, indent(plnum)) |
| " If so, trust the user |
| return -1 |
| endif |
| " If not, recommend one dedent |
| return indent(plnum) - shiftwidth() |
| endif |
| |
| " If the current line begins with a keyword that lines up with "try" |
| if getline(a:lnum) =~ '^\s*\(except\|finally\)\>' |
| let lnum = a:lnum - 1 |
| while lnum >= 1 |
| if getline(lnum) =~ '^\s*\(try\|except\)\>' |
| let ind = indent(lnum) |
| if ind >= indent(a:lnum) |
| return -1 " indent is already less than this |
| endif |
| return ind " line up with previous try or except |
| endif |
| let lnum = lnum - 1 |
| endwhile |
| return -1 " no matching "try"! |
| endif |
| |
| " If the current line begins with a header keyword, dedent |
| if getline(a:lnum) =~ '^\s*\(elif\|else\)\>' |
| |
| " Unless the previous line was a one-liner |
| if getline(plnumstart) =~ '^\s*\(for\|if\|elif\|try\)\>' |
| return plindent |
| endif |
| |
| " Or the user has already dedented |
| if s:Dedented(a:lnum, plindent) |
| return -1 |
| endif |
| |
| return plindent - shiftwidth() |
| endif |
| |
| " When after a () construct we probably want to go back to the start line. |
| " a = (b |
| " + c) |
| " here |
| if parlnum > 0 |
| " ...unless the user has already dedented |
| if s:Dedented(a:lnum, plindent) |
| return -1 |
| else |
| return plindent |
| endif |
| endif |
| |
| return -1 |
| endfunction |
| |
| let &cpo = s:keepcpo |
| unlet s:keepcpo |