Update runtime files
diff --git a/runtime/indent/README.txt b/runtime/indent/README.txt
index 8b11436..6498706 100644
--- a/runtime/indent/README.txt
+++ b/runtime/indent/README.txt
@@ -31,7 +31,7 @@
to other buffers.
To trigger the indenting after typing a word like "endif", add the word to the
-'cinkeys' option with "+=".
+'indentkeys' option with "+=".
You normally set 'indentexpr' to evaluate a function and then define that
function. That function only needs to be defined once for as long as Vim is
diff --git a/runtime/indent/krl.vim b/runtime/indent/krl.vim
new file mode 100644
index 0000000..cc3cbd1
--- /dev/null
+++ b/runtime/indent/krl.vim
@@ -0,0 +1,130 @@
+" Vim indent file
+" Language: Kuka Robot Language
+" Maintainer: Patrick Meiser-Knosowski <knosowski@graeffrobotics.de>
+" Version: 3.0.0
+" Last Change: 15. Apr 2022
+" Credits: Based on indent/vim.vim
+
+" Only load this indent file when no other was loaded.
+if exists("b:did_indent")
+ finish
+endif
+let b:did_indent = 1
+
+setlocal nolisp
+setlocal nocindent
+setlocal nosmartindent
+setlocal autoindent
+setlocal indentexpr=GetKrlIndent()
+setlocal indentkeys=!^F,o,O,=~end,0=~else,0=~case,0=~default,0=~until,0=~continue,=~part
+let b:undo_indent = "setlocal lisp< cindent< smartindent< autoindent< indentexpr< indentkeys<"
+
+if get(g:,'krlSpaceIndent',1)
+ " Use spaces, not tabs, for indention, 2 is enough.
+ " More or even tabs would waste valuable space on the teach pendant.
+ setlocal softtabstop=2
+ setlocal shiftwidth=2
+ setlocal expandtab
+ setlocal shiftround
+ let b:undo_indent = b:undo_indent." softtabstop< shiftwidth< expandtab< shiftround<"
+endif
+
+" Only define the function once.
+if exists("*GetKrlIndent")
+ finish
+endif
+let s:keepcpo = &cpo
+set cpo&vim
+
+function GetKrlIndent() abort
+
+ let currentLine = getline(v:lnum)
+ if currentLine =~? '\v^;(\s*(end)?fold>)@!' && !get(g:, 'krlCommentIndent', 0)
+ " If current line has a ; in column 1 and is no fold, keep zero indent.
+ " This may be usefull if code is commented out at the first column.
+ return 0
+ endif
+
+ " Find a non-blank line above the current line.
+ let preNoneBlankLineNum = s:KrlPreNoneBlank(v:lnum - 1)
+ if preNoneBlankLineNum == 0
+ " At the start of the file use zero indent.
+ return 0
+ endif
+
+ let preNoneBlankLine = getline(preNoneBlankLineNum)
+ let ind = indent(preNoneBlankLineNum)
+
+ " Define add 'shiftwidth' pattern
+ let addShiftwidthPattern = '\v^\s*('
+ if get(g:, 'krlIndentBetweenDef', 1)
+ let addShiftwidthPattern ..= '(global\s+)?def(fct|dat)?\s+\$?\w'
+ let addShiftwidthPattern ..= '|'
+ endif
+ let addShiftwidthPattern ..= 'if>|while>|for>|loop>'
+ let addShiftwidthPattern ..= '|else>'
+ let addShiftwidthPattern ..= '|case>|default>'
+ let addShiftwidthPattern ..= '|repeat>'
+ let addShiftwidthPattern ..= '|skip>|(ptp_)?spline>'
+ let addShiftwidthPattern ..= '|time_block\s+(start|part)>'
+ let addShiftwidthPattern ..= '|const_vel\s+start>'
+ let addShiftwidthPattern ..= ')'
+
+ " Define Subtract 'shiftwidth' pattern
+ let subtractShiftwidthPattern = '\v^\s*('
+ if get(g:, 'krlIndentBetweenDef', 1)
+ let subtractShiftwidthPattern ..= 'end(fct|dat)?>'
+ let subtractShiftwidthPattern ..= '|'
+ endif
+ let subtractShiftwidthPattern ..= 'end(if|while|for|loop)>'
+ let subtractShiftwidthPattern ..= '|else>'
+ let subtractShiftwidthPattern ..= '|case>|default>|endswitch>'
+ let subtractShiftwidthPattern ..= '|until>'
+ let subtractShiftwidthPattern ..= '|end(skip|spline)>'
+ let subtractShiftwidthPattern ..= '|time_block\s+(part|end)>'
+ let subtractShiftwidthPattern ..= '|const_vel\s+end>'
+ let subtractShiftwidthPattern ..= ')'
+
+ " Add shiftwidth
+ if preNoneBlankLine =~? addShiftwidthPattern
+ let ind += &sw
+ endif
+
+ " Subtract shiftwidth
+ if currentLine =~? subtractShiftwidthPattern
+ let ind = ind - &sw
+ endif
+
+ " First case after a switch gets the indent of the switch.
+ if currentLine =~? '\v^\s*case>'
+ \&& preNoneBlankLine =~? '\v^\s*switch>'
+ let ind = ind + &sw
+ endif
+
+ " align continue with the following instruction
+ if currentLine =~? '\v^\s*continue>'
+ \&& getline(v:lnum + 1) =~? subtractShiftwidthPattern
+ let ind = ind - &sw
+ endif
+
+ return ind
+endfunction
+
+" This function works almost like prevnonblank() but handles &-headers,
+" comments and continue instructions like blank lines
+function s:KrlPreNoneBlank(lnum) abort
+
+ let nPreNoneBlank = prevnonblank(a:lnum)
+
+ while nPreNoneBlank > 0 && getline(nPreNoneBlank) =~? '\v^\s*(\&\w\+|;|continue>)'
+ " Previouse none blank line irrelevant. Look further aback.
+ let nPreNoneBlank = prevnonblank(nPreNoneBlank - 1)
+ endwhile
+
+ return nPreNoneBlank
+endfunction
+
+let &cpo = s:keepcpo
+unlet s:keepcpo
+
+" vim:sw=2 sts=2 et
diff --git a/runtime/indent/testdir/krl.in b/runtime/indent/testdir/krl.in
new file mode 100644
index 0000000..ec90feb
--- /dev/null
+++ b/runtime/indent/testdir/krl.in
@@ -0,0 +1,148 @@
+; vim: set ft=krl :
+
+; START_INDENT
+
+def One()
+int i
+If i==1 then
+While i>=1
+For i=1 to 5 step 2
+Loop
+i = i+1
+EndLoop
+EndFor
+EndWhile
+Else
+Repeat
+Switch i
+Case 1
+Skip 123
+i = i+1
+EndSkip 123
+Spline with $acc=100, $vel.cp=3
+slin {x 100}
+scirc {x 110, y 110}, {x 120, y 90}
+slin {x 200} c_dis
+Time_Block Start
+slin {x 300} c_dis
+Time_Block Part = 22.2
+slin {y 400} c_dis
+Time_Block Part = 33.3
+Time_Block End = 10
+slin {y 200} c_dis
+Const_Vel Start +100 OnStart
+slin {y 300} c_dis
+slin {x 100}
+Const_Vel End -5.5
+slin {y 200} c_dis
+EndSpline
+Case 2,3
+PTP_Spline with $acc=100, $vel.ptp=100
+sptp {a1 0} c_ptp
+sptp {a1 90}
+EndSpline c_spl
+Default
+i = i+1
+EndSwitch
+Continue
+Until False
+EndIf
+end
+
+DEF Two()
+int i
+END
+
+global def Three()
+int i
+end
+
+GLOBAL DEF Four()
+int i
+END
+
+Global Def Five()
+int i
+End
+
+deffct bool fOne()
+int i
+endfct
+
+DEFFCT bool fTwo()
+int i
+ENDFCT
+
+global deffct bool fThree()
+int i
+endfct
+
+GLOBAL DEFFCT bool fFour()
+int i
+ENDFCT
+
+Global DefFct bool fFive()
+int i
+EndFct
+
+DefDat datfile()
+global int i=1
+; don't indent column 1 comments unless g:krlCommentIndent is set
+; global int o=2
+EndDat
+
+; END_INDENT
+
+; START_INDENT
+; INDENT_EXE let g:krlSpaceIndent = 0
+; INDENT_EXE set shiftwidth=4
+
+def bla()
+int i
+end
+
+; END_INDENT
+
+; START_INDENT
+; INDENT_EXE let g:krlCommentIndent = 1
+def bla()
+; indent this first column comment because of g:krlCommentIndent=1
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_EXE let g:krlIndentBetweenDef = 0
+def bla()
+int i ; don't indent this line because of g:krlIndentBetweenDef=0
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_AT this-line
+def Some()
+int f
+if true then
+f = 1 ; this-line
+endif
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_NEXT next-line
+def Some()
+ int i
+ ; next-line
+i = 1 ; should get indent of line 'int i' above
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_PREV prev-line
+def Some()
+int f
+if true then
+f = 1
+; prev-line
+endif
+end
+; END_INDENT
diff --git a/runtime/indent/testdir/krl.ok b/runtime/indent/testdir/krl.ok
new file mode 100644
index 0000000..34dc0f5
--- /dev/null
+++ b/runtime/indent/testdir/krl.ok
@@ -0,0 +1,148 @@
+; vim: set ft=krl :
+
+; START_INDENT
+
+def One()
+ int i
+ If i==1 then
+ While i>=1
+ For i=1 to 5 step 2
+ Loop
+ i = i+1
+ EndLoop
+ EndFor
+ EndWhile
+ Else
+ Repeat
+ Switch i
+ Case 1
+ Skip 123
+ i = i+1
+ EndSkip 123
+ Spline with $acc=100, $vel.cp=3
+ slin {x 100}
+ scirc {x 110, y 110}, {x 120, y 90}
+ slin {x 200} c_dis
+ Time_Block Start
+ slin {x 300} c_dis
+ Time_Block Part = 22.2
+ slin {y 400} c_dis
+ Time_Block Part = 33.3
+ Time_Block End = 10
+ slin {y 200} c_dis
+ Const_Vel Start +100 OnStart
+ slin {y 300} c_dis
+ slin {x 100}
+ Const_Vel End -5.5
+ slin {y 200} c_dis
+ EndSpline
+ Case 2,3
+ PTP_Spline with $acc=100, $vel.ptp=100
+ sptp {a1 0} c_ptp
+ sptp {a1 90}
+ EndSpline c_spl
+ Default
+ i = i+1
+ EndSwitch
+ Continue
+ Until False
+ EndIf
+end
+
+DEF Two()
+ int i
+END
+
+global def Three()
+ int i
+end
+
+GLOBAL DEF Four()
+ int i
+END
+
+Global Def Five()
+ int i
+End
+
+deffct bool fOne()
+ int i
+endfct
+
+DEFFCT bool fTwo()
+ int i
+ENDFCT
+
+global deffct bool fThree()
+ int i
+endfct
+
+GLOBAL DEFFCT bool fFour()
+ int i
+ENDFCT
+
+Global DefFct bool fFive()
+ int i
+EndFct
+
+DefDat datfile()
+ global int i=1
+; don't indent column 1 comments unless g:krlCommentIndent is set
+; global int o=2
+EndDat
+
+; END_INDENT
+
+; START_INDENT
+; INDENT_EXE let g:krlSpaceIndent = 0
+; INDENT_EXE set shiftwidth=4
+
+def bla()
+ int i
+end
+
+; END_INDENT
+
+; START_INDENT
+; INDENT_EXE let g:krlCommentIndent = 1
+def bla()
+ ; indent this first column comment because of g:krlCommentIndent=1
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_EXE let g:krlIndentBetweenDef = 0
+def bla()
+int i ; don't indent this line because of g:krlIndentBetweenDef=0
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_AT this-line
+def Some()
+int f
+if true then
+ f = 1 ; this-line
+endif
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_NEXT next-line
+def Some()
+ int i
+ ; next-line
+ i = 1 ; should get indent of line 'int i' above
+end
+; END_INDENT
+
+; START_INDENT
+; INDENT_PREV prev-line
+def Some()
+int f
+if true then
+ f = 1
+; prev-line
+endif
+end
+; END_INDENT