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" SPDX-FileCopyrightText: © 2019 Caleb Maclennan <caleb@alerque.com>
" SPDX-FileCopyrightText: © 2009 Johann Klähn <kljohann@gmail.com>
" SPDX-FileCopyrightText: © 2009 Stefan Karrmann
" SPDX-FileCopyrightText: © 2005 Wolfgang Oertl
" SPDX-License-Identifier: GPL-2.0-or-later
scriptencoding utf-8
call ledger#init()
if exists('b:did_indent')
finish
endif
let b:did_indent = 1
setlocal autoindent
setlocal indentexpr=GetLedgerIndent()
if exists('*GetLedgerIndent')
finish
endif
function GetLedgerIndent(...)
" You can pass in a line number when calling this function manually.
let lnum = a:0 > 0 ? a:1 : v:lnum
" If this line is empty look at (the indentation of) the last line.
" Note that inside of a transaction no blank lines are allowed.
let line = getline(lnum)
let prev = getline(lnum - 1)
if line =~# '^\s\+\S'
" Lines that already are indented (→postings, sub-directives) keep their indentation.
return shiftwidth()
elseif line =~# '^\s*$'
" Current line is empty, try to guess its type based on the previous line.
if prev =~# '^\([[:digit:]~=]\|\s\+\S\)'
" This is very likely a posting or a sub-directive.
" While lines following the start of a transaction are automatically
" indented you will have to indent the first line following a
" pre-declaration manually. This makes it easier to type long lists of
" 'account' pre-declarations without sub-directives, for example.
return shiftwidth()
else
return 0
endif
else
" Everything else is not indented:
" start of transactions, pre-declarations, apply/end-lines
return 0
endif
endfunction
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