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-rw-r--r--runtime/indent/zimbu.vim128
1 files changed, 128 insertions, 0 deletions
diff --git a/runtime/indent/zimbu.vim b/runtime/indent/zimbu.vim
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+" Vim indent file
+" Language: Zimbu
+" Maintainer: Bram Moolenaar <Bram@vim.org>
+" Last Change: 2021 Sep 26
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+setlocal ai nolisp nocin
+setlocal indentexpr=GetZimbuIndent(v:lnum)
+setlocal indentkeys=0{,0},!^F,o,O,0=ELSE,0=ELSEIF,0=CASE,0=DEFAULT,0=FINALLY
+
+" We impose recommended defaults: no Tabs, 'shiftwidth' = 2
+setlocal sw=2 et
+
+let b:undo_indent = "setl ai< cin< et< indentkeys< indentexpr< lisp< sw<"
+
+" Only define the function once.
+if exists("*GetZimbuIndent")
+ finish
+endif
+
+let s:cpo_save = &cpo
+set cpo&vim
+
+" Come here when loading the script the first time.
+
+let s:maxoff = 50 " maximum number of lines to look backwards for ()
+
+func GetZimbuIndent(lnum)
+ let prevLnum = prevnonblank(a:lnum - 1)
+ if prevLnum == 0
+ " This is the first non-empty line, use zero indent.
+ return 0
+ endif
+
+ " Taken from Python indenting:
+ " If the previous line is inside parenthesis, use the indent of the starting
+ " line.
+ " Trick: use the non-existing "dummy" variable to break out of the loop when
+ " going too far back.
+ call cursor(prevLnum, 1)
+ let parlnum = searchpair('(\|{\|\[', '', ')\|}\|\]', 'nbW',
+ \ "line('.') < " . (prevLnum - s:maxoff) . " ? dummy :"
+ \ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
+ \ . " =~ '\\(Comment\\|String\\|Char\\)$'")
+ if parlnum > 0
+ let plindent = indent(parlnum)
+ let plnumstart = parlnum
+ else
+ let plindent = indent(prevLnum)
+ let plnumstart = prevLnum
+ endif
+
+
+ " When inside parenthesis: If at the first line below the parenthesis add
+ " two 'shiftwidth', otherwise same as previous line.
+ " i = (a
+ " + b
+ " + c)
+ call cursor(a:lnum, 1)
+ let p = searchpair('(\|{\|\[', '', ')\|}\|\]', 'bW',
+ \ "line('.') < " . (a:lnum - s:maxoff) . " ? dummy :"
+ \ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
+ \ . " =~ '\\(Comment\\|String\\|Char\\)$'")
+ if p > 0
+ if p == prevLnum
+ " When the start is inside parenthesis, only indent one 'shiftwidth'.
+ let pp = searchpair('(\|{\|\[', '', ')\|}\|\]', 'bW',
+ \ "line('.') < " . (a:lnum - s:maxoff) . " ? dummy :"
+ \ . " synIDattr(synID(line('.'), col('.'), 1), 'name')"
+ \ . " =~ '\\(Comment\\|String\\|Char\\)$'")
+ if pp > 0
+ return indent(prevLnum) + shiftwidth()
+ endif
+ return indent(prevLnum) + shiftwidth() * 2
+ endif
+ if plnumstart == p
+ return indent(prevLnum)
+ endif
+ return plindent
+ endif
+
+ let prevline = getline(prevLnum)
+ let thisline = getline(a:lnum)
+
+ " If this line is not a comment and the previous one is then move the
+ " previous line further back.
+ if thisline !~ '^\s*#'
+ while prevline =~ '^\s*#'
+ let prevLnum = prevnonblank(prevLnum - 1)
+ if prevLnum == 0
+ " Only comment lines before this, no indent
+ return 0
+ endif
+ let prevline = getline(prevLnum)
+ let plindent = indent(prevLnum)
+ endwhile
+ endif
+
+ if prevline =~ '^\s*\(IF\|\|ELSEIF\|ELSE\|GENERATE_IF\|\|GENERATE_ELSEIF\|GENERATE_ELSE\|WHILE\|REPEAT\|TRY\|CATCH\|FINALLY\|FOR\|DO\|SWITCH\|CASE\|DEFAULT\|FUNC\|VIRTUAL\|ABSTRACT\|DEFINE\|REPLACE\|FINAL\|PROC\|MAIN\|NEW\|ENUM\|CLASS\|INTERFACE\|BITS\|MODULE\|SHARED\)\>'
+ let plindent += shiftwidth()
+ endif
+ if thisline =~ '^\s*\(}\|ELSEIF\>\|ELSE\>\|CATCH\|FINALLY\|GENERATE_ELSEIF\>\|GENERATE_ELSE\>\|UNTIL\>\)'
+ let plindent -= shiftwidth()
+ endif
+ if thisline =~ '^\s*\(CASE\>\|DEFAULT\>\)' && prevline !~ '^\s*SWITCH\>'
+ let plindent -= shiftwidth()
+ endif
+
+ " line up continued comment that started after some code
+ " String something # comment comment
+ " # comment
+ if a:lnum == prevLnum + 1 && thisline =~ '^\s*#' && prevline !~ '^\s*#'
+ let n = match(prevline, '#')
+ if n > 1
+ let plindent = n
+ endif
+ endif
+
+ return plindent
+endfunc
+
+let &cpo = s:cpo_save
+unlet s:cpo_save