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5fd21b8d3e
Update runtime files
6c391a74fe
omit autoload/getscript.vim
skip doc/eval.txt (needs 8.2.2468)
skip doc/various.txt (needs 8.2.3400)
(typofixes courtesy of @dundargoc)
400 lines
13 KiB
VimL
400 lines
13 KiB
VimL
" Vim indent file
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" Language: SQL
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" Maintainer: David Fishburn <dfishburn dot vim at gmail dot com>
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" Last Change By Maintainer: 2017 Jun 13
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" Last Change: by Stephen Wall, #5578, 2020 Jun 07
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" Version: 3.0
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" Download: http://vim.sourceforge.net/script.php?script_id=495
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" Notes:
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" Indenting keywords are based on Oracle and Sybase Adaptive Server
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" Anywhere (ASA). Test indenting was done with ASA stored procedures and
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" functions and Oracle packages which contain stored procedures and
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" functions.
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" This has not been tested against Microsoft SQL Server or
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" Sybase Adaptive Server Enterprise (ASE) which use the Transact-SQL
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" syntax. That syntax does not have end tags for IF's, which makes
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" indenting more difficult.
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"
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" Known Issues:
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" The Oracle MERGE statement does not have an end tag associated with
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" it, this can leave the indent hanging to the right one too many.
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"
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" History:
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" 3.0 (Dec 2012)
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" Added cpo check
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"
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" 2.0
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" Added the FOR keyword to SQLBlockStart to handle (Alec Tica):
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" for i in 1..100 loop
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" |<-- I expect to have indentation here
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" end loop;
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"
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" Only load this indent file when no other was loaded.
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if exists("b:did_indent")
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finish
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endif
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let b:did_indent = 1
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let b:current_indent = "sqlanywhere"
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setlocal indentkeys-=0{
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setlocal indentkeys-=0}
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setlocal indentkeys-=:
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setlocal indentkeys-=0#
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setlocal indentkeys-=e
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" This indicates formatting should take place when one of these
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" expressions is used. These expressions would normally be something
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" you would type at the BEGINNING of a line
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" SQL is generally case insensitive, so this files assumes that
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" These keywords are something that would trigger an indent LEFT, not
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" an indent right, since the SQLBlockStart is used for those keywords
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setlocal indentkeys+==~end,=~else,=~elseif,=~elsif,0=~when,0=)
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" GetSQLIndent is executed whenever one of the expressions
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" in the indentkeys is typed
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setlocal indentexpr=GetSQLIndent()
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" Only define the functions once.
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if exists("*GetSQLIndent")
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finish
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endif
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let s:keepcpo= &cpo
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set cpo&vim
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" List of all the statements that start a new block.
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" These are typically words that start a line.
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" IS is excluded, since it is difficult to determine when the
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" ending block is (especially for procedures/functions).
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let s:SQLBlockStart = '^\s*\%('.
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\ 'if\>.*\<then\|'.
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\ 'then\|else\>\|'.
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\ 'elseif\>.*\<then\|'.
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\ 'elsif\>.(\<then\|'.
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\ 'while\>.*\<loop\|'.
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\ 'for\>.*\<loop\|'.
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\ 'foreach\>.*\<loop\|'.
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\ 'loop\|do\|declare\|begin\|'.
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\ 'case\|when\|merge\|exception'.
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\ '\)\>'
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let s:SQLBlockEnd = '^\s*\(end\)\>'
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" The indent level is also based on unmatched parentheses
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" If a line has an extra "(" increase the indent
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" If a line has an extra ")" decrease the indent
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function! s:CountUnbalancedParen( line, paren_to_check )
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let l = a:line
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let lp = substitute(l, '[^(]', '', 'g')
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let l = a:line
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let rp = substitute(l, '[^)]', '', 'g')
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if a:paren_to_check =~ ')'
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" echom 'CountUnbalancedParen ) returning: ' .
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" \ (strlen(rp) - strlen(lp))
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return (strlen(rp) - strlen(lp))
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elseif a:paren_to_check =~ '('
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" echom 'CountUnbalancedParen ( returning: ' .
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" \ (strlen(lp) - strlen(rp))
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return (strlen(lp) - strlen(rp))
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else
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" echom 'CountUnbalancedParen unknown paren to check: ' .
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" \ a:paren_to_check
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return 0
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endif
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endfunction
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" Unindent commands based on previous indent level
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function! s:CheckToIgnoreRightParen( prev_lnum, num_levels )
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let lnum = a:prev_lnum
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let line = getline(lnum)
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let ends = 0
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let num_right_paren = a:num_levels
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let ignore_paren = 0
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let vircol = 1
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while num_right_paren > 0
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silent! exec 'norm! '.lnum."G\<bar>".vircol."\<bar>"
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let right_paren = search( ')', 'W' )
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if right_paren != lnum
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" This should not happen since there should be at least
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" num_right_paren matches for this line
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break
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endif
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let vircol = virtcol(".")
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" if getline(".") =~ '^)'
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let matching_paren = searchpair('(', '', ')', 'bW',
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\ 's:IsColComment(line("."), col("."))')
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if matching_paren < 1
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" No match found
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" echom 'CTIRP - no match found, ignoring'
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break
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endif
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if matching_paren == lnum
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" This was not an unmatched parentheses, start the search again
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" again after this column
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" echom 'CTIRP - same line match, ignoring'
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continue
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endif
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" echom 'CTIRP - match: ' . line(".") . ' ' . getline(".")
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if getline(matching_paren) =~? '\(if\|while\)\>'
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" echom 'CTIRP - if/while ignored: ' . line(".") . ' ' . getline(".")
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let ignore_paren = ignore_paren + 1
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endif
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" One match found, decrease and check for further matches
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let num_right_paren = num_right_paren - 1
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endwhile
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" Fallback - just move back one
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" return a:prev_indent - shiftwidth()
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return ignore_paren
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endfunction
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" Based on the keyword provided, loop through previous non empty
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" non comment lines to find the statement that initiated the keyword.
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" Return its indent level
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" CASE ..
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" WHEN ...
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" Should return indent level of CASE
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" EXCEPTION ..
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" WHEN ...
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" something;
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" WHEN ...
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" Should return indent level of exception.
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function! s:GetStmtStarterIndent( keyword, curr_lnum )
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let lnum = a:curr_lnum
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" Default - reduce indent by 1
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let ind = indent(a:curr_lnum) - shiftwidth()
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if a:keyword =~? 'end'
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exec 'normal! ^'
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let stmts = '^\s*\%('.
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\ '\<begin\>\|' .
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\ '\%(\%(\<end\s\+\)\@<!\<loop\>\)\|' .
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\ '\%(\%(\<end\s\+\)\@<!\<case\>\)\|' .
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\ '\%(\%(\<end\s\+\)\@<!\<for\>\)\|' .
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\ '\%(\%(\<end\s\+\)\@<!\<if\>\)'.
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\ '\)'
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let matching_lnum = searchpair(stmts, '', '\<end\>\zs', 'bW',
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\ 's:IsColComment(line("."), col(".")) == 1')
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exec 'normal! $'
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if matching_lnum > 0 && matching_lnum < a:curr_lnum
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let ind = indent(matching_lnum)
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endif
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elseif a:keyword =~? 'when'
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exec 'normal! ^'
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let matching_lnum = searchpair(
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\ '\%(\<end\s\+\)\@<!\<case\>\|\<exception\>\|\<merge\>',
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\ '',
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\ '\%(\%(\<when\s\+others\>\)\|\%(\<end\s\+case\>\)\)',
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\ 'bW',
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\ 's:IsColComment(line("."), col(".")) == 1')
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exec 'normal! $'
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if matching_lnum > 0 && matching_lnum < a:curr_lnum
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let ind = indent(matching_lnum)
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else
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let ind = indent(a:curr_lnum)
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endif
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endif
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return ind
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endfunction
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" Check if the line is a comment
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function! s:IsLineComment(lnum)
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let rc = synIDattr(
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\ synID(a:lnum,
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\ match(getline(a:lnum), '\S')+1, 0)
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\ , "name")
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\ =~? "comment"
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return rc
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endfunction
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" Check if the column is a comment
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function! s:IsColComment(lnum, cnum)
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let rc = synIDattr(synID(a:lnum, a:cnum, 0), "name")
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\ =~? "comment"
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return rc
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endfunction
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" Instead of returning a column position, return
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" an appropriate value as a factor of shiftwidth.
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function! s:ModuloIndent(ind)
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let ind = a:ind
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if ind > 0
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let modulo = ind % shiftwidth()
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if modulo > 0
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let ind = ind - modulo
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endif
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endif
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return ind
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endfunction
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" Find correct indent of a new line based upon the previous line
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function! GetSQLIndent()
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let lnum = v:lnum
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let ind = indent(lnum)
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" If the current line is a comment, leave the indent as is
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" Comment out this additional check since it affects the
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" indenting of =, and will not reindent comments as it should
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" if s:IsLineComment(lnum) == 1
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" return ind
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" endif
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" Get previous non-blank line
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let prevlnum = prevnonblank(lnum - 1)
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if prevlnum <= 0
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return ind
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endif
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if s:IsLineComment(prevlnum) == 1
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if getline(v:lnum) =~ '^\s*\*'
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let ind = s:ModuloIndent(indent(prevlnum))
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return ind + 1
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endif
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" If the previous line is a comment, then return -1
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" to tell Vim to use the formatoptions setting to determine
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" the indent to use
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" But only if the next line is blank. This would be true if
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" the user is typing, but it would not be true if the user
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" is reindenting the file
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if getline(v:lnum) =~ '^\s*$'
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return -1
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endif
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endif
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" echom 'PREVIOUS INDENT: ' . indent(prevlnum) . ' LINE: ' . getline(prevlnum)
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" This is the line you just hit return on, it is not the current line
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" which is new and empty
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" Based on this line, we can determine how much to indent the new
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" line
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" Get default indent (from prev. line)
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let ind = indent(prevlnum)
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let prevline = getline(prevlnum)
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" Now check what's on the previous line to determine if the indent
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" should be changed, for example IF, BEGIN, should increase the indent
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" where END IF, END, should decrease the indent.
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if prevline =~? s:SQLBlockStart
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" Move indent in
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let ind = ind + shiftwidth()
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" echom 'prevl - SQLBlockStart - indent ' . ind . ' line: ' . prevline
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elseif prevline =~ '[()]'
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if prevline =~ '('
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let num_unmatched_left = s:CountUnbalancedParen( prevline, '(' )
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else
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let num_unmatched_left = 0
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endif
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if prevline =~ ')'
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let num_unmatched_right = s:CountUnbalancedParen( prevline, ')' )
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else
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let num_unmatched_right = 0
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" let num_unmatched_right = s:CountUnbalancedParen( prevline, ')' )
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endif
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if num_unmatched_left > 0
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" There is a open left parenthesis
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" increase indent
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let ind = ind + ( shiftwidth() * num_unmatched_left )
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elseif num_unmatched_right > 0
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" if it is an unbalanced parenthesis only unindent if
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" it was part of a command (ie create table(..) )
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" instead of part of an if (ie if (....) then) which should
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" maintain the indent level
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let ignore = s:CheckToIgnoreRightParen( prevlnum, num_unmatched_right )
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" echom 'prevl - ) unbalanced - CTIRP - ignore: ' . ignore
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if prevline =~ '^\s*)'
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let ignore = ignore + 1
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" echom 'prevl - begins ) unbalanced ignore: ' . ignore
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endif
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if (num_unmatched_right - ignore) > 0
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let ind = ind - ( shiftwidth() * (num_unmatched_right - ignore) )
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endif
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endif
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endif
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" echom 'CURRENT INDENT: ' . ind . ' LINE: ' . getline(v:lnum)
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" This is a new blank line since we just typed a carriage return
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" Check current line; search for simplistic matching start-of-block
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let line = getline(v:lnum)
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if line =~? '^\s*els'
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" Any line when you type else will automatically back up one
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" ident level (ie else, elseif, elsif)
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let ind = ind - shiftwidth()
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" echom 'curr - else - indent ' . ind
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elseif line =~? '^\s*end\>'
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let ind = s:GetStmtStarterIndent('end', v:lnum)
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" General case for end
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" let ind = ind - shiftwidth()
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" echom 'curr - end - indent ' . ind
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elseif line =~? '^\s*when\>'
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let ind = s:GetStmtStarterIndent('when', v:lnum)
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" If the WHEN clause is used with a MERGE or EXCEPTION
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" clause, do not change the indent level, since these
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" statements do not have a corresponding END statement.
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" if stmt_starter =~? 'case'
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" let ind = ind - shiftwidth()
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" endif
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" elseif line =~ '^\s*)\s*;\?\s*$'
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" elseif line =~ '^\s*)'
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elseif line =~ '^\s*)'
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let num_unmatched_right = s:CountUnbalancedParen( line, ')' )
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let ignore = s:CheckToIgnoreRightParen( v:lnum, num_unmatched_right )
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" If the line ends in a ), then reduce the indent
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" This catches items like:
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" CREATE TABLE T1(
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" c1 int,
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" c2 int
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" );
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" But we do not want to unindent a line like:
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" IF ( c1 = 1
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" AND c2 = 3 ) THEN
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" let num_unmatched_right = s:CountUnbalancedParen( line, ')' )
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" if num_unmatched_right > 0
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" elseif strpart( line, strlen(line)-1, 1 ) =~ ')'
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" let ind = ind - shiftwidth()
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if line =~ '^\s*)'
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" let ignore = ignore + 1
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" echom 'curr - begins ) unbalanced ignore: ' . ignore
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endif
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if (num_unmatched_right - ignore) > 0
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let ind = ind - ( shiftwidth() * (num_unmatched_right - ignore) )
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endif
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" endif
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endif
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" echom 'final - indent ' . ind
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return s:ModuloIndent(ind)
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endfunction
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" Restore:
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let &cpo= s:keepcpo
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unlet s:keepcpo
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" vim: ts=4 fdm=marker sw=4
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