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- " Vim indent file
- " Language: ChaiScript
- " Maintainer: Jason Turner <lefticus 'at' gmail com>
-
- " Only load this indent file when no other was loaded.
- if exists("b:did_indent")
- finish
- endif
- let b:did_indent = 1
-
- setlocal indentexpr=GetChaiScriptIndent()
- setlocal autoindent
-
- " Only define the function once.
- if exists("*GetChaiScriptIndent")
- finish
- endif
-
- function! GetChaiScriptIndent()
- " Find a non-blank line above the current line.
- let lnum = prevnonblank(v:lnum - 1)
-
- " Hit the start of the file, use zero indent.
- if lnum == 0
- return 0
- endif
-
- " Add a 'shiftwidth' after lines that start a block:
- " lines containing a {
- let ind = indent(lnum)
- let flag = 0
- let prevline = getline(lnum)
- if prevline =~ '^.*{.*'
- let ind = ind + &shiftwidth
- let flag = 1
- endif
-
- " Subtract a 'shiftwidth' after lines containing a { followed by a }
- " to keep it balanced
- if flag == 1 && prevline =~ '.*{.*}.*'
- let ind = ind - &shiftwidth
- endif
-
- " Subtract a 'shiftwidth' on lines ending with }
- if getline(v:lnum) =~ '^\s*\%(}\)'
- let ind = ind - &shiftwidth
- endif
-
- return ind
- endfunction
-