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random fixes and improvements (#435)
* random fixes and improvements this also removes the parentheses alignment, we can leave it in I suppose, but I'd like to revisit that later. if anyone objects please let me know.this needs to be cleaned up a bit before merging * Update javascript.vim * Update javascript.vim * Update javascript.vim
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‎indent/javascript.vim

Lines changed: 54 additions & 50 deletions
Original file line numberDiff line numberDiff line change
@@ -41,8 +41,8 @@ endif
4141
" 1. Variables {{{1
4242
" ============
4343

44-
let s:js_keywords = '^\s*\(break\|catch\|const\|continue\|debugger\|delete\|do\|else\|finally\|for\|function\|if\|in\|instanceof\|let\|new\|return\|switch\|this\|throw\|try\|typeof\|var\|void\|while\|with\)'
45-
let s:expr_case = '^\s*\(case\s\+[^\:]*\|default\)\s*:\s*'
44+
let s:js_keywords = '^\s*\%(break\|catch\|const\|continue\|debugger\|delete\|do\|else\|finally\|for\|function\|if\|in\|instanceof\|let\|new\|return\|switch\|this\|throw\|try\|typeof\|var\|void\|while\|with\)\>\C'
45+
let s:expr_case = '^\s*\%(case\s\+[^\:]*\|default\)\s*:\s*\C'
4646
" Regex of syntax group names that are or delimit string or are comments.
4747
let s:syng_strcom = '\%(string\|regex\|comment\|template\)\c'
4848

@@ -61,17 +61,17 @@ let s:skip_expr = "synIDattr(synID(line('.'),col('.'),1),'name') =~ '".s:syng_st
6161
let s:line_term = '\s*\%(\%(\/\/\).*\)\=$'
6262

6363
" Regex that defines continuation lines, not including (, {, or [.
64-
let s:continuation_regex = '\%([\\*/.:]\|+\@<!+\|-\@<!-\|\%(<%\)\@<!=\|\W[|&?]\|||\|&&\|\%(=>.*\|=\)\@<!=[^=>].*,\)' . s:line_term
64+
let s:continuation_regex = '\%([\\*/.?:]\|+\@<!+\|-\@<!-\|=\|||\|&&\|\%(=>.*\)\@<!=[^=>],\)' . s:line_term
6565

66-
let s:one_line_scope_regex = '\%(\<else\>\|=>\)' . s:line_term
66+
let s:one_line_scope_regex = '\%(\<else\>\|=>\)\C' . s:line_term
6767

6868
function s:Onescope(lnum)
6969
if getline(a:lnum) =~ s:one_line_scope_regex
7070
return 1
7171
end
7272
let mypos = col('.')
7373
call cursor(a:lnum, 1)
74-
if search('\<\%(while\|for\|if\)\>\s*(', 'ce', a:lnum) > 0 && searchpair('(', '', ')', 'W', s:skip_expr, a:lnum) > 0 && col('.') == strlen(s:RemoveTrailingComments(getline(a:lnum)))
74+
if search('\<\%(while\|for\|if\)\>\s*(\C', 'ce', a:lnum) > 0 && searchpair('(', '', ')', 'W', s:skip_expr, a:lnum) > 0 && col('.') == strlen(s:RemoveTrailingComments(getline(a:lnum)))
7575
call cursor(a:lnum, mypos)
7676
return 1
7777
else
@@ -85,10 +85,10 @@ let s:block_regex = '\%([{([]\)\s*\%(|\%([*@]\=\h\w*,\=\s*\)\%(,\s*[*@]\=\h\w*\)
8585

8686
let s:operator_first = '^\s*\%([*.:?]\|\([-/+]\)\1\@!\|||\|&&\)'
8787

88-
let s:var_stmt = '^\s*\%(const\|let\|var\)'
88+
let s:var_stmt = '^\s*\%(const\|let\|var\)\s\+\C'
8989

9090
let s:comma_first = '^\s*,'
91-
let s:comma_last = ',\s*$'
91+
let s:comma_last = ',' . s:line_term
9292

9393
" 2. Auxiliary Functions {{{1
9494
" ======================
@@ -185,28 +185,35 @@ function s:RemoveTrailingComments(content)
185185
endfunction
186186

187187
" Find if the string is inside var statement (but not the first string)
188-
function s:InMultiVarStatement(lnum)
188+
function s:InMultiVarStatement(lnum, cont, prev)
189189
let lnum = s:PrevNonBlankNonString(a:lnum - 1)
190190

191-
" let type = synIDattr(synID(lnum, indent(lnum) + 1, 0), 'name')
191+
" let type = synIDattr(synID(lnum, indent(lnum) + 1, 0), 'name')
192192

193193
" loop through previous expressions to find a var statement
194-
while lnum > 0
194+
while lnum > 0 && (s:Match(lnum, s:comma_last) || (a:cont && getline(lnum) =~ '^\s*}') || (a:prev && s:Match(a:prev, s:comma_last)))
195195
let line = getline(lnum)
196-
197196
" if the line is a js keyword
198197
if (line =~ s:js_keywords)
199198
" check if the line is a var stmt
200199
" if the line has a comma first or comma last then we can assume that we
201200
" are in a multiple var statement
202-
if (line =~ s:var_stmt)
201+
if (line =~ s:var_stmt) && line =~ s:comma_last
203202
return lnum
204203
endif
205204

206205
" other js keywords, not a var
207-
return 0
206+
if line !~ s:comma_last
207+
return 0
208+
end
208209
endif
209-
210+
if a:cont
211+
call cursor(lnum,1)
212+
if searchpair('{', '', '}', 'bW', s:skip_expr) > 0
213+
let lnum = line('.')
214+
continue
215+
end
216+
end
210217
let lnum = s:PrevNonBlankNonString(lnum - 1)
211218
endwhile
212219

@@ -217,7 +224,7 @@ endfunction
217224
" Find line above with beginning of the var statement or returns 0 if it's not
218225
" this statement
219226
function s:GetVarIndent(lnum)
220-
let lvar = s:InMultiVarStatement(a:lnum)
227+
let lvar = s:InMultiVarStatement(a:lnum, 0,0)
221228
let prev_lnum = s:PrevNonBlankNonString(a:lnum - 1)
222229

223230
if lvar
@@ -253,7 +260,7 @@ function s:LineHasOpeningBrackets(lnum)
253260
endif
254261
let pos = match(line, '[][(){}]', pos + 1)
255262
endwhile
256-
return (open_0 > 0 ? 1 : (open_0 == 0 ? 0 : 2)) . (open_2 > 0) . (open_4 > 0)
263+
return (open_0 > 0 ? 1 : (open_0 == 0 ? 0 : 2)) . (open_2 > 0 ? 1 : (open_2 == 0 ? 0 : 2)) . (open_4 > 0 ? 1 : (open_4 == 0 ? 0 : 2))
257264
endfunction
258265

259266
function s:Match(lnum, regex)
@@ -283,11 +290,11 @@ function s:IndentWithContinuation(lnum, ind, width)
283290
if s:Match(lnum, s:continuation_regex)
284291
if lnum == p_lnum
285292
return msl_ind + a:width
286-
elseif s:InMultiVarStatement(lnum) && getline(lnum) =~ s:comma_last
287-
return msl_ind - a:width
288293
else
289294
return msl_ind
290295
end
296+
elseif s:InMultiVarStatement(p_lnum, 0,v:lnum)
297+
return indent(p_lnum) - s:sw()
291298
endif
292299

293300
return a:ind
@@ -354,15 +361,18 @@ function GetJavascriptIndent()
354361
if (line =~ s:expr_case)
355362
return cindent(v:lnum)
356363
endif
364+
if s:Match(v:lnum, s:comma_first) && s:Match(prevline,s:var_stmt)
365+
return indent(prevline) + s:sw()
366+
end
357367
" If we got a closing bracket on an empty line, find its match and indent
358368
" according to it. For parentheses we indent to its column - 1, for the
359369
" others we indent to the containing line's MSL's level. Return -1 if fail.
360370
let col = matchend(line, '^\s*[],})]')
361371
if col > 0 && !s:IsInStringOrComment(v:lnum, col)
362372
call cursor(v:lnum, col)
363373

364-
let lvar = s:InMultiVarStatement(v:lnum)
365-
if lvar
374+
let lvar = s:InMultiVarStatement(v:lnum, 0, 0) || line =~ s:comma_first
375+
if lvar || line =~ s:comma_first
366376
let prevline_contents = s:RemoveTrailingComments(getline(prevline))
367377

368378
" check for comma first
@@ -383,24 +393,14 @@ function GetJavascriptIndent()
383393

384394
let bs = strpart('(){}[]', stridx(')}]', line[col - 1]) * 2, 2)
385395
if searchpair(escape(bs[0], '\['), '', bs[1], 'bW', s:skip_expr) > 0
386-
if line[col-1]==')' && col('.') != col('$') - 1
387-
let ind = virtcol('.')-1
388-
else
389-
let ind = s:InMultiVarStatement(line('.')) ? indent(line('.')) : indent(s:GetMSL(line('.'), 0))
390-
endif
396+
let ind = s:InMultiVarStatement(line('.'), 0, 0) ? indent(line('.')) : indent(s:GetMSL(line('.'), 0))
391397
endif
392398
return ind
393399
endif
394400

395401
" If the line is comma first, dedent 1 level
396402
if (getline(prevline) =~ s:comma_first)
397403
return indent(prevline) - s:sw()
398-
elseif getline(s:PrevNonBlankNonString(prevline - 1)) =~ '[])}]' . s:comma_last && getline(prevline) !~ s:block_regex
399-
if getline(prevline) !~ s:comma_last
400-
return indent(prevline) - s:sw()
401-
else
402-
return indent(prevline)
403-
end
404404
end
405405

406406
" If line starts with an operator...
@@ -445,12 +445,6 @@ function GetJavascriptIndent()
445445
end
446446
end
447447

448-
" Check for multiple var assignments
449-
" let var_indent = s:GetVarIndent(v:lnum)
450-
" if var_indent >= 0
451-
" return var_indent
452-
" endif
453-
454448
" 3.3. Work on the previous line. {{{1
455449
" -------------------------------
456450

@@ -477,30 +471,35 @@ function GetJavascriptIndent()
477471

478472
" If the previous line ended with a block opening, add a level of indent.
479473
if s:Match(lnum, s:block_regex)
480-
return s:InMultiVarStatement(lnum) ? indent(lnum) + s:sw() : indent(s:GetMSL(lnum, 0)) + s:sw()
474+
return s:InMultiVarStatement(lnum, 0, 0) ? indent(lnum) + s:sw() : indent(s:GetMSL(lnum, 0)) + s:sw()
481475
endif
482476

483477
" Set up variables for current line.
484478
let line = getline(lnum)
485479
let ind = indent(lnum)
486480
" If the previous line contained an opening bracket, and we are still in it,
487481
" add indent depending on the bracket type.
488-
if line =~ '[[({})\]]'
482+
if s:Match(lnum, '[[({})\]]')
489483
let counts = s:LineHasOpeningBrackets(lnum)
490-
if counts[0] == '1' && searchpair('(', '', ')', 'bW', s:skip_expr) > 0
491-
if col('.') + 1 == col('$') || s:Onescope(lnum)
492-
return ind + s:sw()
493-
else
494-
return virtcol('.')
495-
endif
496-
elseif counts[0] == '2'
484+
if counts[0] == '2'
497485
call cursor(lnum, 1)
498486
" Search for the opening tag
499-
let mnum = searchpair('(', '', ')', 'bW', s:skip_expr)
500-
if mnum > 0
501-
return indent(s:GetMSL(mnum, 0))
487+
if searchpair('(', '', ')', 'bW', s:skip_expr) > 0
488+
return indent(s:GetMSL(line('.'), 0))
502489
end
503-
elseif counts[1] == '1' || counts[2] == '1' && counts[0] != '2'
490+
elseif counts[1] == '2' && line !~ '^\s*}'
491+
call cursor(lnum, 1)
492+
" Search for the opening tag
493+
if searchpair('{', '', '}', 'bW', s:skip_expr) > 0
494+
return indent(s:GetMSL(line('.'), 0))
495+
end
496+
elseif counts[2] == '2' && line !~ '^\s*]'
497+
call cursor(lnum, 1)
498+
" Search for the opening tag
499+
if searchpair('\[', '', '\]', 'bW', s:skip_expr) > 0
500+
return indent(s:GetMSL(line('.'), 0))
501+
end
502+
elseif counts[1] == '1' || counts[2] == '1' || counts[0] == '1' || s:Onescope(lnum)
504503
return ind + s:sw()
505504
else
506505
call cursor(v:lnum, vcol)
@@ -509,7 +508,12 @@ function GetJavascriptIndent()
509508

510509
" 3.4. Work on the MSL line. {{{1
511510
" --------------------------
511+
if s:Match(lnum, s:comma_last) && !s:Match(lnum, s:continuation_regex)
512+
return line =~ s:var_stmt ? indent(lnum) + s:sw() : indent(lnum)
512513

514+
elseif s:InMultiVarStatement(lnum, 1, v:lnum) && line !~ s:var_stmt
515+
return indent(lnum) - s:sw()
516+
end
513517
let ind_con = ind
514518
let ind = s:IndentWithContinuation(lnum, ind_con, s:sw())
515519

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