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676 lines
22 KiB
VimL
676 lines
22 KiB
VimL
"
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" Copyright 2006 Tye Zdrojewski
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"
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" Licensed under the Apache License, Version 2.0 (the "License"); you may not
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" use this file except in compliance with the License. You may obtain a copy of
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" the License at
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"
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" http://www.apache.org/licenses/LICENSE-2.0
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"
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" Unless required by applicable law or agreed to in writing, software distributed
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" under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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" CONDITIONS OF ANY KIND, either express or implied. See the License for the
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" specific language governing permissions and limitations under the License.
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"
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"
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"
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" Plugin:
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"
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" Indent Anything
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"
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" Version: 1.2.2
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"
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" Description:
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"
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" This is an indentation script that calculates the indent level based
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" on begin/end syntax pairs and line-continuation patterns. It allows one
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" to create an indent script without writing any code, taking it's
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" instruction from configurable values.
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"
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" Included with this script is Javascript indentation, an example that
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" explains the configurable values.
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"
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"
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" Installation:
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"
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" Place this file in your home directory under ~/.vim/indent/, or replace
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" the system indent/javascript.vim file to affect all users.
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"
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" Maintainer: Tye Z. <zdro@yahoo.com>
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"
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" Customization:
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"
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" The only thing that can really be customized at this point is whether or
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" not a line is echoed explaining the indentation result. To turn this on,
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" set the following variable like so:
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"
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" let b:indent_anything_echo = 1
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"
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"
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" History:
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"
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" 1.2 - made some functions script-local to prevent naming collisions
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" - fixed some broken indentation in the middle of a block comment,
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" which showed up in Javascript indentation.
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"
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" 1.2.2 - Fixed a bug causing the line after a single-line block comment to
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" always have an indent of '0' (i.e. the line after /* comment */).
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" - Added Apache 2 license
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"
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"
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let s:supportedVimVersion = 700
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if version < s:supportedVimVersion
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echoerr "IndentAnything only supported for Vim " . s:supportedVimVersion . " and up."
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finish
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endif
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"
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" Initialize everything needed by this script. Only set those values that are
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" not set already.
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"
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function! IndentAnythingInit()
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let b:IndentAnythingInitialized = 1
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" Start with a regular expression that will never match. Matching
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" will influence behavior, which the defaults should not do.
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let s:nonMatcher = '[x]\&[^x]'
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if !exists('b:commentRE')
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let b:commentRE = s:nonMatcher
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endif
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if !exists('b:lineCommentRE')
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let b:lineCommentRE = s:nonMatcher
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endif
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if !exists('b:blockCommentRE')
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let b:blockCommentRE = s:nonMatcher
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endif
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if !exists('b:stringRE')
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let b:stringRE = s:nonMatcher
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endif
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if !exists('b:singleQuoteStringRE')
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let b:singleQuoteStringRE = s:nonMatcher
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endif
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if !exists('b:doubleQuoteStringRE')
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let b:doubleQuoteStringRE = s:nonMatcher
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endif
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if !exists('b:blockCommentStartRE')
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let b:blockCommentStartRE = s:nonMatcher
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endif
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if !exists('b:blockCommentMiddleRE')
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let b:blockCommentMiddleRE = s:nonMatcher
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endif
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if !exists('b:blockCommentEndRE')
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let b:blockCommentEndRE = s:nonMatcher
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endif
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if !exists('b:blockCommentMiddleExtra')
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let b:blockCommentMiddleExtra = 0
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endif
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if !exists('b:indentTrios')
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let b:indentTrios = []
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endif
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if !exists('b:lineContList')
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let b:lineContList = []
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endif
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if !exists('b:contTraversesLineComments')
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let b:contTraversesLineComments = 1
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endif
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if !exists('b:indent_anything_echo')
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let b:indent_anything_echo = 0
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endif
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endfunction
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function! SynHere()
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return synIDattr(synID(line('.'), col('.'), 1), "name")
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endfunction
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"
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" Returns true if the cursor is currently inside a comment or a string
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"
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function! InCommentOrString()
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let syn = synIDattr(synID(line("."), col("."), 1), "name")
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if syn =~ b:commentRE || syn =~ b:stringRE
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return 1
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endif
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return 0
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endfunction
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"
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" Returns true if the given line is a comment line (b:lineCommentRE)
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"
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function! IsLineComment(linenum)
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let cursor = getpos('.')
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exec a:linenum
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normal ^
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let l:iscomment = 0
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let l:syn = synIDattr(synID(line('.'), col('.'), 1), "name")
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if l:syn =~ b:lineCommentRE " b:commentRE || l:syn =~ b:stringRE
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let l:iscomment = 1
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endif
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call setpos('.', cursor)
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return l:iscomment
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endfunction
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"
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" Returns true if the given line is a comment line (b:lineCommentRE)
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"
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function! IsComment(linenum)
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let cursor = getpos('.')
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exec a:linenum
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normal ^
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let l:iscomment = 0
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let l:syn = synIDattr(synID(line('.'), col('.'), 1), "name")
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if l:syn =~ b:commentRE " b:commentRE || l:syn =~ b:stringRE
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let l:iscomment = 1
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endif
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call setpos('.', cursor)
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return l:iscomment
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endfunction
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"
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" Returns true if the given line is a comment line (b:lineCommentRE)
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"
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function! IsBlockComment(linenum)
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let cursor = getpos('.')
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exec a:linenum
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normal ^
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let l:iscomment = 0
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let l:syn = synIDattr(synID(line('.'), col('.'), 1), "name")
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if l:syn =~ b:blockCommentRE " b:commentRE || l:syn =~ b:stringRE
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let l:iscomment = 1
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endif
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call setpos('.', cursor)
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return l:iscomment
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endfunction
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"
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" Get the first line at or on the given line that is not blank and is not a
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" comment line.
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"
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function! GetPrevNonBlankNonComment(begin)
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let cursor = getpos('.')
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let l:prevbegin = a:begin
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while 1
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let l:lnum = prevnonblank(l:prevbegin)
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if l:lnum == 0
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return 0
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endif
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"if IsLineComment(l:lnum)
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if IsComment(l:lnum)
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let l:prevbegin -= 1
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continue
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endif
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break
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endwhile
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" Restore original cursor location
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call setpos('.', cursor)
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return l:lnum
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endfunction
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"
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" This does all the work. Does indentation for:
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"
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" - All pairs defined in b:indentTrios
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" - All line continuations in b:lineContList
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" - Block comments
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"
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function! IndentAnything()
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if !exists('b:IndentAnythingInitialized')
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call IndentAnythingInit()
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endif
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let adj = 0 " Adjustment
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let g:lastindent = ""
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let b:hardindent = -1
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let currlnum = v:lnum
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let currlnum = line('.')
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let currline = getline(currlnum)
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let lastline = ''
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let prevline = ''
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" Find non-blank lines above the current line.
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let lastlnum = prevnonblank(currlnum - 1)
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let prevlnum = prevnonblank(lastlnum - 1)
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if lastlnum != 0
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let lastline = getline(lastlnum)
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endif
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if prevlnum != 0
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let prevline = getline(prevlnum)
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endif
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if b:contTraversesLineComments
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let lastcodelnum = GetPrevNonBlankNonComment(currlnum - 1)
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let prevcodelnum = GetPrevNonBlankNonComment(lastcodelnum - 1)
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if lastcodelnum !=0
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let lastcodeline = getline(lastcodelnum)
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endif
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endif
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" Start from the first char on the line. Vim doesn't seem to consistently
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" place the cursor there before calling the indent routines.
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call cursor(0, 1)
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call search('\S', 'W')
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let l:cur = getpos('.')
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"
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" Call indentation adjustment functions.
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"
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"
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" Block comments
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"
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let l:BlockCommentAdj = 0
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let l:BlockCommentAdj += s:GetBlockCommentIndent(currlnum, lastlnum)
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let adj += l:BlockCommentAdj
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"
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" Pairs
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"
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let b:lastclosed = { 'at' : 0 }
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let b:pairadj = 0
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if !l:BlockCommentAdj
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" If we're not in the middle of a block comment (because we haven't
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" made any adjustments for that), then process block indentation.
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for trio in b:indentTrios
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let b:pairadj += s:GetPairIndent(currline, lastline, lastlnum,
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\ trio[0], trio[1], trio[2])
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endfor
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endif
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let adj += b:pairadj
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"
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" Line continuations
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"
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let contadj = 0
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let isBlockCommentStart = currline =~ '^\s*' . b:blockCommentStartRE
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let isBlockCommentMid = (IsBlockComment(currlnum) && !isBlockCommentStart)
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if !isBlockCommentMid
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" If the current line is not the middle of a block comment, then
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" process line continuations.
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for ContRule in b:lineContList
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if b:contTraversesLineComments "&& !isBlockCommentStart
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let contadj = s:GetContIndent(ContRule, currline, lastcodeline, lastcodelnum, prevcodelnum)
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else
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let contadj = s:GetContIndent(ContRule, currline, lastline, lastlnum, prevlnum)
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endif
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" This is for line continuation patterns, of which there can be only
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" one per line to indicate continuation
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if contadj
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break
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endif
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endfor
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let adj += contadj
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endif
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"
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" Find the previous indent to which we will add the adjustment
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"
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let prevind = indent(lastlnum)
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if l:BlockCommentAdj
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let g:lastindent .= " indent (prevblockcomment: " . prevind . " at " . lastcodelnum . ") "
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elseif contadj && b:contTraversesLineComments
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" If we have adjusted for line continuation, then use the indentation
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" for the previous code line
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let prevind = indent(lastcodelnum)
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let g:lastindent .= " indent (prevcode: " . prevind . " at " . lastcodelnum . ") "
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elseif (isBlockCommentStart || !IsBlockComment(currlnum)) && IsBlockComment(lastlnum)
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" If this is the first line after a block comment, then add the
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" adjustment to the line where the block comment started.
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let prevind = s:GetPostBlockCommentIndent(lastlnum)
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let g:lastindent .= " indent (prevblock: " . prevind . " at " . lastlnum . ") "
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elseif exists("b:defaultIndentExpr")
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let g:lastindent .= " using defaultIndentExpr (" . b:defaultIndentExpr . ") "
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exec "let prevind = " . b:defaultIndentExpr
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else
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" Default to adjusting the previous line's indent.
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let g:lastindent .= " indent (prev: " . prevind . " at " . lastlnum . ") "
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endif
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" Just in case there is no previous indent.
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let prevind = (prevind == -1 ? 0 : prevind)
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if b:indent_anything_echo
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echom g:lastindent
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endif
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call setpos('.', l:cur)
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return adj + prevind
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endfunction
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"
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" Get the adjustment for the second line of a block comment. The second line
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" will be aligned under the start of the block, even if it is not at the
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" beginning of the line. Extra adjustment (b:blockCommentMiddleExtra) will
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" be added.
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"
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function! s:GetBlockCommentIndent(CurrLNum, LastLNum)
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let l:cursor = getpos('.')
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let l:adj = 0
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if a:LastLNum == searchpair(b:blockCommentStartRE, '', b:blockCommentEndRE, 'bWr')
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\ && a:LastLNum > 0
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let l:adj = col('.') + b:blockCommentMiddleExtra
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normal ^
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let l:adj -= col('.')
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endif
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call setpos('.', l:cursor)
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return l:adj
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endfunction
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function! s:GetPostBlockCommentIndent(LastLNum)
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let l:cursor = getpos('.')
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let l:ind = 0
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let l:comment_start_lnum = 0;
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" Find beginning of block comment containing the start of line LastLNum
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exec a:LastLNum
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normal ^
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let l:comment_start_lnum = searchpair(
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\ b:blockCommentStartRE, b:blockCommentMiddleRE, b:blockCommentEndRE, 'bWr')
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" Assume that the LastLNum is a block comment. If the comment both
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" started and stopped on LastLNum, then searchpair will return 0. In that
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" case, we just want to return the indent of LastLNum itself.
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if 0 == l:comment_start_lnum
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let l:comment_start_lnum = a:LastLNum
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endif
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let l:ind = indent(l:comment_start_lnum)
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if 1 || l:ind != 0 && b:indent_anything_echo
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let g:lastindent = g:lastindent .
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\ "GetPostBlockCommentIndent: " . l:ind
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endif
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call setpos('.', l:cursor)
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"return l:ind
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return l:ind > 0 ? l:ind : 0
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endfunction
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"
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" Get additional indentation based on blocks of code, as defined by the Head
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" and Tail patterns.
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"
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function! s:GetPairIndent(CurrLine, LastLine, LastLNum, Head, Mid, Tail)
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let levels = 0
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let adj = 0
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let origcol = col(".")
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let origline = line(".")
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"
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" How many levels were started on the last line? Search backwards for
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" pair starters until we're not on the last nonblank. If the last line
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" doesn't contain the pair-starter, then don't bother with searchpair();
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" it's a performance bottleneck because (I think) it will always search
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" all the way back until it finds a match or can't search any more.
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"
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"
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if a:LastLine =~ a:Head
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while 1
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"
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" Include the limit of the search to be the last line. BIG
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" performance booster! That also means we only have to see *if*
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" there was a match, and not worry about where it is.
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"
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"let pairstart = searchpair(a:Head, a:Mid, a:Tail, 'Wb')
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"if pairstart == 0 || pairstart != a:LastLNum
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let pairstart = searchpair(a:Head, a:Mid, a:Tail, 'Wb', '', a:LastLNum)
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if pairstart == 0 "|| pairstart != a:LastLNum
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break
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endif
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let syn = synIDattr(synID(line("."), col("."), 1), "name")
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" Also continue on the off chance that we find the match on the
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" current line. This shouldn't happen, but the pattern might
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" start with whitespace.
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if syn =~ b:commentRE || syn =~ b:stringRE || pairstart == origline
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continue
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endif
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let levels += 1
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endwhile
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endif
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" If we aren't within a level that was started on the last line, then
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" check how many levels were closed on the last line.
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"
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if levels == 0
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" Move to the beginning of the last line
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call cursor(a:LastLNum,0)
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normal ^
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" If the line starts with an open, The close shouldn't be counted as
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" such, because we're looking for closes that didn't start on this
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" line.
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if a:LastLine =~ '^\s*' . a:Head ||
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\ (a:Mid != '' && a:LastLine =~ '^\s*' . a:Mid)
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let levels = 1
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endif
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"
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" Count the closes on the last line (i.e. LastLNum), stopping once
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" we've hit comments. If the line doesn't even contain the end of the
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" pair, don't bother with searchpair() (same aforementioned
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" rationale).
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"
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if a:LastLine =~ a:Tail
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while 1
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"
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" Include the limit of the search to be the last line. BIG
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" performance booster! That also means we only have to see
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" *if* there was a match, and not worry about where it is.
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"
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"let pairend = searchpair(a:Head, a:Mid, a:Tail, 'W')
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"if pairend == 0 || a:LastLNum != pairend
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"let pairend = searchpair(a:Head, a:Mid, a:Tail, 'W', '', a:LastLNum)
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let pairend = searchpair(a:Head, a:Mid, a:Tail, 'W',
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\'InCommentOrString()', a:LastLNum)
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if pairend == 0 "|| a:LastLNum != pairend
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" STARTS with a:Tail, since we already know the line
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" matches it.
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if b:lastclosed.at < col('.') && (
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\ a:LastLine =~ '^\s*' . a:Tail
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\ || (a:Mid != '' && a:LastLine =~ '^\s*' . a:Mid) )
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let b:lastclosed = {
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\ 'at' : col('.'),
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\ 'head' : a:Head,
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\ 'mid' : a:Mid,
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\ 'tail' : a:Tail }
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endif
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break
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endif
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" This might not be needed with the expr included in the
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" search call.
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"let syn = synIDattr(synID(line("."), col("."), 1), "name")
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"if syn =~ b:commentRE || syn =~ b:stringRE || syn == ''
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" break
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"endif
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let levels -= 1
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" Track the last close to try to match pairs that start on
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" line continuations
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if b:lastclosed.at < col('.')
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let b:lastclosed = {
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\ 'at' : col('.'),
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\ 'head' : a:Head,
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\ 'mid' : a:Mid,
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\ 'tail' : a:Tail }
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endif
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endwhile
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endif
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endif
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" This is redundant, as per above
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" If the current line starts with a close, count it. It won't effect the
|
|
" indentation of the next line because it is the first thing on the line
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|
" and won't be counted as a "close on the last line".
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if a:CurrLine =~ '^\s*' . a:Tail
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|
\ || (a:Mid != '' && a:CurrLine =~ '^\s*' . a:Mid)
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|
let levels -= 1
|
|
endif
|
|
|
|
" Restore original cursor location
|
|
call cursor(origline, origcol)
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|
|
|
let adj = &sw*levels
|
|
if adj != 0 && b:indent_anything_echo
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|
let g:lastindent = g:lastindent .
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|
\ "GetPairIndent(" . a:Head . "/" . b:lastclosed.at . "):" . adj . " "
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|
endif
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return adj
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|
|
endfunction
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|
|
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function! s:GetContIndent(Rule, CurrLine, LastLine, LastLNum, PrevLNum)
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|
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let adj = 0
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let origcol = col(".")
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let origline = line(".")
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let lastcont = 0
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let prevcont = 0
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let l:lastlnum = a:LastLNum
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let l:prevlnum = a:PrevLNum
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|
|
|
let l:preblockstart = -1
|
|
|
|
" Get the last matching line number. If the match occurs w/in a comment
|
|
" or string, then it's a non-match.
|
|
"
|
|
"let lastmatchlnum = search(a:Rule.pattern, 'Wb', a:PrevLNum)
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|
let lastmatchlnum = search(a:Rule.pattern, 'Wb', a:LastLNum)
|
|
let syn = synIDattr(synID(line("."), col("."), 1), "name")
|
|
|
|
"if syn =~ b:commentRE || syn =~ b:stringRE
|
|
if syn =~ b:commentRE || syn =~ b:stringRE || b:lastclosed.at > 0
|
|
let lastmatchlnum = 0
|
|
endif
|
|
|
|
" Should be able to just search to the line....
|
|
" " Figure out the last and previous continuation status
|
|
" if lastmatchlnum && lastmatchlnum == a:LastLNum
|
|
" let lastcont = 1
|
|
" endif
|
|
if lastmatchlnum == a:LastLNum
|
|
let lastcont = 1
|
|
endif
|
|
|
|
" start checking at the start of the block that ended on the prev line
|
|
if b:lastclosed.at > 0
|
|
call cursor(a:LastLNum, b:lastclosed.at)
|
|
" TODO: add 'skip' to skip comments
|
|
let l:preblockstart = searchpair(b:lastclosed.head, b:lastclosed.mid, b:lastclosed.tail, 'bW')
|
|
let g:lastindent .= ' postpair ("' . b:lastclosed.head . '"): '
|
|
\ . l:preblockstart . '/' . col('.') . ' '
|
|
|
|
if b:contTraversesLineComments
|
|
let l:prevlnum = GetPrevNonBlankNonComment(line('.') - 1)
|
|
else
|
|
let l:prevlnum = prevnonblank(line('.') - 1)
|
|
endif
|
|
endif
|
|
|
|
|
|
" Get the previous matching line number. If the match occurs w/in a
|
|
" comment or string, then it's a non-match. Use the adjusted, local
|
|
" prevlnum as the limit of the search, since we don't care about matches
|
|
" beyond that.
|
|
let prevmatchlnum = search(a:Rule.pattern, 'Wb', l:prevlnum)
|
|
|
|
|
|
let syn = synIDattr(synID(line("."), col("."), 1), "name")
|
|
" Handle:
|
|
" if ()
|
|
" if () {
|
|
" this_line; // should not be reduced
|
|
"if syn =~ b:commentRE || syn =~ b:stringRE
|
|
if syn =~ b:commentRE || syn =~ b:stringRE
|
|
let prevmatchlnum = 0
|
|
endif
|
|
|
|
" Should be able to just search to the line....
|
|
" if ( lastmatchlnum && lastmatchlnum == a:PrevLNum )
|
|
" \ || ( prevmatchlnum && prevmatchlnum == l:prevlnum )
|
|
" let prevcont = 1
|
|
" endif
|
|
"
|
|
" If there is a previous line, it is a continued line, and we haven't
|
|
" already done a positive adjustment for a pair/block, then reduce.
|
|
" Don't undo a positive adjustment for a pair because the previous line
|
|
" was a continued line. That will happen after the end of the block.
|
|
"if prevmatchlnum == l:prevlnum && b:pairadj <= 0
|
|
if l:prevlnum && prevmatchlnum == l:prevlnum && b:pairadj <= 0
|
|
let prevcont = 1
|
|
endif
|
|
|
|
"echom "lastcont: " . lastcont .
|
|
" \ ", prevcont: " . prevcont .
|
|
" \ ", lastmatchlnum: " . lastmatchlnum .
|
|
" \ ", prevmatchlnum: " . prevmatchlnum .
|
|
" \ ", lastlnum: " . a:LastLNum .
|
|
" \ ", PrevLNum: " . a:PrevLNum
|
|
let firstcont = (lastcont && !prevcont)
|
|
let firstcont = ((lastcont && !prevcont) || (lastcont && b:pairadj))
|
|
|
|
" If we are adjusting the current line for a pair, then don't count this
|
|
" line as a post-continuation line. The post continuation line will be
|
|
" after the close of said pair.
|
|
let postcont = (!lastcont && prevcont)
|
|
"let postcont = (!lastcont && prevcont && !b:pairadj )
|
|
|
|
let g:lastindent .= 'lastcont (' . lastcont . '), prevcont (' . prevcont . ') '
|
|
|
|
|
|
"if firstcont && a:CurrLine !~ '^\s*{'
|
|
if firstcont
|
|
if has_key(a:Rule, 'ignore') && a:CurrLine =~ a:Rule.ignore
|
|
let g:lastindent .= "(ignoring '" . a:Rule.ignore . "') "
|
|
else
|
|
let adj = adj + &sw
|
|
endif
|
|
"elseif postcont && a:LastLine !~ '^\s*{' "&& !b:pairadj
|
|
elseif postcont
|
|
if has_key(a:Rule, 'ignore') && a:LastLine =~ a:Rule.ignore
|
|
let g:lastindent .= "(ignoring '" . a:Rule.ignore . "') "
|
|
else
|
|
let adj = adj - &sw
|
|
endif
|
|
endif
|
|
|
|
call cursor(origline, origcol)
|
|
|
|
if adj != 0 && b:indent_anything_echo
|
|
let g:lastindent = g:lastindent .
|
|
\ "GetContIndent('" . a:Rule.pattern . "'):" . adj . " "
|
|
endif
|
|
return adj
|
|
|
|
endfunction
|
|
|
|
|
|
|
|
|