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authorRuben Beltran del Rio <ruben@unlimited.pizza>2023-06-11 23:21:38 +0200
committerRuben Beltran del Rio <ruben@unlimited.pizza>2023-06-11 23:21:38 +0200
commit252cea169185f5a57acb6913f622950bb27458f8 (patch)
tree33bc09c6a5abd5bd46faec09c10de226a9993a5c /vim/indent/javascript.vim
parente19087bc292678a526a8c780bbdc58b38dcecc2c (diff)
Drop support for vim, cleanup nvim config
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-" Vim indent file
-" Language: Javascript
-" Maintainer: Darrick Wiebe <darrick at innatesoftware.com>
-" URL: http://github.com/pangloss/vim-javascript
-" Version: 1.0.0
-" Last Change: August 31, 2009
-" Acknowledgement: Based off of vim-ruby maintained by Nikolai Weibull http://vim-ruby.rubyforge.org
-
-" 0. Initialization {{{1
-" =================
-
-" Only load this indent file when no other was loaded.
-if exists("b:did_indent")
- finish
-endif
-let b:did_indent = 1
-
-setlocal nosmartindent
-
-" Now, set up our indentation expression and keys that trigger it.
-setlocal indentexpr=GetJavascriptIndent()
-setlocal indentkeys=0{,0},0),0],!^F,o,O,e
-
-" Only define the function once.
-if exists("*GetJavascriptIndent")
- finish
-endif
-
-let s:cpo_save = &cpo
-set cpo&vim
-
-" 1. Variables {{{1
-" ============
-
-" Regex of syntax group names that are or delimit string or are comments.
-let s:syng_strcom = 'javaScript\%(String\|RegexpString\|CommentTodo\|LineComment\|Comment\|DocComment\)'
-
-" Regex of syntax group names that are strings.
-let s:syng_string = 'javaScript\%(RegexpString\)'
-
-" Regex of syntax group names that are strings or documentation.
-let s:syng_stringdoc = 'javaScriptDocComment\|javaScriptComment'
-
-" Expression used to check whether we should skip a match with searchpair().
-let s:skip_expr = "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_strcom."'"
-
-let s:line_term = '\s*\%(\%(\/\/\).*\)\=$'
-
-" Regex that defines continuation lines, not including (, {, or [.
-let s:continuation_regex = '\%([\\*+/.:]\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)' . s:line_term
-
-" Regex that defines continuation lines.
-" TODO: this needs to deal with if ...: and so on
-let s:msl_regex = '\%([\\*+/.:([]\|\%(<%\)\@<![=-]\|\W[|&?]\|||\|&&\)' . s:line_term
-
-let s:one_line_scope_regex = '\<\%(if\|else\|for\|while\)\>[^{;]*' . s:line_term
-
-" Regex that defines blocks.
-let s:block_regex = '\%({\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)*|\)\=' . s:line_term
-
-" 2. Auxiliary Functions {{{1
-" ======================
-
-" Check if the character at lnum:col is inside a string, comment, or is ascii.
-function s:IsInStringOrComment(lnum, col)
- return synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_strcom
-endfunction
-
-" Check if the character at lnum:col is inside a string.
-function s:IsInString(lnum, col)
- return synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_string
-endfunction
-
-" Check if the character at lnum:col is inside a string or documentation.
-function s:IsInStringOrDocumentation(lnum, col)
- return synIDattr(synID(a:lnum, a:col, 1), 'name') =~ s:syng_stringdoc
-endfunction
-
-" Find line above 'lnum' that isn't empty, in a comment, or in a string.
-function s:PrevNonBlankNonString(lnum)
- let in_block = 0
- let lnum = prevnonblank(a:lnum)
- while lnum > 0
- " Go in and out of blocks comments as necessary.
- " If the line isn't empty (with opt. comment) or in a string, end search.
- let line = getline(lnum)
- if line =~ '/\*'
- if in_block
- let in_block = 0
- else
- break
- endif
- elseif !in_block && line =~ '\*/'
- let in_block = 1
- elseif !in_block && line !~ '^\s*\%(//\).*$' && !(s:IsInStringOrComment(lnum, 1) && s:IsInStringOrComment(lnum, strlen(line)))
- break
- endif
- let lnum = prevnonblank(lnum - 1)
- endwhile
- return lnum
-endfunction
-
-" Find line above 'lnum' that started the continuation 'lnum' may be part of.
-function s:GetMSL(lnum, in_one_line_scope)
- " Start on the line we're at and use its indent.
- let msl = a:lnum
- let lnum = s:PrevNonBlankNonString(a:lnum - 1)
- while lnum > 0
- " If we have a continuation line, or we're in a string, use line as MSL.
- " Otherwise, terminate search as we have found our MSL already.
- let line = getline(lnum)
- let col = match(line, s:msl_regex) + 1
- if (col > 0 && !s:IsInStringOrComment(lnum, col)) || s:IsInString(lnum, strlen(line))
- let msl = lnum
- else
- " Don't use lines that are part of a one line scope as msl unless the
- " flag in_one_line_scope is set to 1
- "
- if a:in_one_line_scope
- break
- end
- let msl_one_line = s:Match(lnum, s:one_line_scope_regex)
- if msl_one_line == 0
- break
- endif
- endif
- let lnum = s:PrevNonBlankNonString(lnum - 1)
- endwhile
- return msl
-endfunction
-
-" Check if line 'lnum' has more opening brackets than closing ones.
-function s:LineHasOpeningBrackets(lnum)
- let open_0 = 0
- let open_2 = 0
- let open_4 = 0
- let line = getline(a:lnum)
- let pos = match(line, '[][(){}]', 0)
- while pos != -1
- if !s:IsInStringOrComment(a:lnum, pos + 1)
- let idx = stridx('(){}[]', line[pos])
- if idx % 2 == 0
- let open_{idx} = open_{idx} + 1
- else
- let open_{idx - 1} = open_{idx - 1} - 1
- endif
- endif
- let pos = match(line, '[][(){}]', pos + 1)
- endwhile
- return (open_0 > 0) . (open_2 > 0) . (open_4 > 0)
-endfunction
-
-function s:Match(lnum, regex)
- let col = match(getline(a:lnum), a:regex) + 1
- return col > 0 && !s:IsInStringOrComment(a:lnum, col) ? col : 0
-endfunction
-
-function s:IndentWithContinuation(lnum, ind, width)
- " Set up variables to use and search for MSL to the previous line.
- let p_lnum = a:lnum
- let lnum = s:GetMSL(a:lnum, 1)
- let line = getline(line)
-
- " If the previous line wasn't a MSL and is continuation return its indent.
- " TODO: the || s:IsInString() thing worries me a bit.
- if p_lnum != lnum
- if s:Match(p_lnum,s:continuation_regex)||s:IsInString(p_lnum,strlen(line))
- return a:ind
- endif
- endif
-
- " Set up more variables now that we know we aren't continuation bound.
- let msl_ind = indent(lnum)
-
- " If the previous line ended with [*+/.-=], start a continuation that
- " indents an extra level.
- if s:Match(lnum, s:continuation_regex)
- if lnum == p_lnum
- return msl_ind + a:width
- else
- return msl_ind
- endif
- endif
-
- return a:ind
-endfunction
-
-function s:InOneLineScope(lnum)
- let msl = s:GetMSL(a:lnum, 1)
- if msl > 0 && s:Match(msl, s:one_line_scope_regex)
- return msl
- endif
- return 0
-endfunction
-
-function s:ExitingOneLineScope(lnum)
- let msl = s:GetMSL(a:lnum, 1)
- if msl > 0
- " if the current line is in a one line scope ..
- if s:Match(msl, s:one_line_scope_regex)
- return 0
- else
- let prev_msl = s:GetMSL(msl - 1, 1)
- if s:Match(prev_msl, s:one_line_scope_regex)
- return prev_msl
- endif
- endif
- endif
- return 0
-endfunction
-
-" 3. GetJavascriptIndent Function {{{1
-" =========================
-
-function GetJavascriptIndent()
- " 3.1. Setup {{{2
- " ----------
-
- " Set up variables for restoring position in file. Could use v:lnum here.
- let vcol = col('.')
-
- " 3.2. Work on the current line {{{2
- " -----------------------------
-
- " Get the current line.
- let line = getline(v:lnum)
- let ind = -1
-
-
- " If we got a closing bracket on an empty line, find its match and indent
- " according to it. For parentheses we indent to its column - 1, for the
- " others we indent to the containing line's MSL's level. Return -1 if fail.
- let col = matchend(line, '^\s*[]})]')
- if col > 0 && !s:IsInStringOrComment(v:lnum, col)
- call cursor(v:lnum, col)
- let bs = strpart('(){}[]', stridx(')}]', line[col - 1]) * 2, 2)
- if searchpair(escape(bs[0], '\['), '', bs[1], 'bW', s:skip_expr) > 0
- if line[col-1]==')' && col('.') != col('$') - 1
- let ind = virtcol('.')-1
- else
- let ind = indent(s:GetMSL(line('.'), 0))
- endif
- endif
- return ind
- endif
-
- " If we have a /* or */ set indent to first column.
- if match(line, '^\s*\%(/\*\|\*/\)$') != -1
- return 0
- endif
-
- " If we are in a multi-line string or line-comment, don't do anything to it.
- if s:IsInStringOrDocumentation(v:lnum, matchend(line, '^\s*') + 1)
- return indent('.')
- endif
-
- " 3.3. Work on the previous line. {{{2
- " -------------------------------
-
- " Find a non-blank, non-multi-line string line above the current line.
- let lnum = s:PrevNonBlankNonString(v:lnum - 1)
-
- " If the line is empty and inside a string, use the previous line.
- if line =~ '^\s*$' && lnum != prevnonblank(v:lnum - 1)
- return indent(prevnonblank(v:lnum))
- endif
-
- " At the start of the file use zero indent.
- if lnum == 0
- return 0
- endif
-
- " Set up variables for current line.
- let line = getline(lnum)
- let ind = indent(lnum)
-
- " If the previous line ended with a block opening, add a level of indent.
- if s:Match(lnum, s:block_regex)
- return indent(s:GetMSL(lnum, 0)) + &sw
- endif
-
- " If the previous line contained an opening bracket, and we are still in it,
- " add indent depending on the bracket type.
- if line =~ '[[({]'
- let counts = s:LineHasOpeningBrackets(lnum)
- if counts[0] == '1' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0
- if col('.') + 1 == col('$')
- return ind + &sw
- else
- return virtcol('.')
- endif
- elseif counts[1] == '1' || counts[2] == '1'
- return ind + &sw
- else
- call cursor(v:lnum, vcol)
- end
- endif
-
- " 3.4. Work on the MSL line. {{{2
- " --------------------------
-
- let ind_con = ind
- let ind = s:IndentWithContinuation(lnum, ind_con, &sw)
-
- " }}}2
- "
- "
- let ols = s:InOneLineScope(lnum)
- if ols > 0
- let ind = ind + &sw
- else
- let ols = s:ExitingOneLineScope(lnum)
- while ols > 0 && ind > 0
- let ind = ind - &sw
- let ols = s:InOneLineScope(ols - 1)
- endwhile
- endif
-
- return ind
-endfunction
-
-" }}}1
-
-let &cpo = s:cpo_save
-unlet s:cpo_save
-
-" vim:set sw=2 sts=2 ts=8 noet:
-