Add ledger support, closes #488

compiler/ledger.vim

@@ -0,0 +1,32 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'ledger') == -1
+
+" Vim Compiler File
+" Compiler:	ledger
+" by Johann Klähn; Use according to the terms of the GPL>=2.
+" vim:ts=2:sw=2:sts=2:foldmethod=marker
+
+scriptencoding utf-8
+
+if exists('current_compiler') || !exists('g:ledger_bin')
+  finish
+endif
+
+let current_compiler = g:ledger_bin
+
+if exists(':CompilerSet') != 2
+  command -nargs=* CompilerSet setlocal <args>
+endif
+
+if !g:ledger_is_hledger
+	" Capture Ledger errors (%-C ignores all lines between "While parsing..." and "Error:..."):
+	CompilerSet errorformat=%EWhile\ parsing\ file\ \"%f\"\\,\ line\ %l:,%ZError:\ %m,%-C%.%#
+	" Capture Ledger warnings:
+	CompilerSet errorformat+=%tarning:\ \"%f\"\\,\ line\ %l:\ %m
+	" Skip all other lines:
+	CompilerSet errorformat+=%-G%.%#
+	exe 'CompilerSet makeprg='.substitute(g:ledger_bin, ' ', '\\ ', 'g').'\ -f\ %\ '.substitute(g:ledger_extra_options, ' ', '\\ ', 'g').'\ source\ %'
+else
+	exe 'CompilerSet makeprg=('.substitute(g:ledger_bin, ' ', '\\ ', 'g').'\ -f\ %\ print\ '.substitute(g:ledger_extra_options, ' ', '\\ ', 'g').'\ >\ /dev/null)'
+endif
+
+endif