Adding upstream version 2:9.0.1378.upstream/2%9.0.1378upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 229 insertions, 0 deletions

diff --git a/runtime/indent/pascal.vim b/runtime/indent/pascal.vim
new file mode 100644
index 0000000..b21b725
--- /dev/null
+++ b/runtime/indent/pascal.vim
@@ -0,0 +1,229 @@
+" Vim indent file
+" Language:    Pascal
+" Maintainer:  Neil Carter <n.carter@swansea.ac.uk>
+" Created:     2004 Jul 13
+" Last Change: 2021 Sep 22
+"
+" For further documentation, see https://psy.swansea.ac.uk/staff/carter/vim/
+
+
+if exists("b:did_indent")
+	finish
+endif
+let b:did_indent = 1
+
+setlocal indentexpr=GetPascalIndent(v:lnum)
+setlocal indentkeys&
+setlocal indentkeys+==end;,==const,==type,==var,==begin,==repeat,==until,==for
+setlocal indentkeys+==program,==function,==procedure,==object,==private
+setlocal indentkeys+==record,==if,==else,==case
+
+let b:undo_indent = 'setlocal indentexpr< indentkeys<'
+
+if exists("*GetPascalIndent")
+	finish
+endif
+
+
+" ________________________________________________________________
+function! s:GetPrevNonCommentLineNum( line_num )
+
+	" Skip lines starting with a comment
+	let SKIP_LINES = '^\s*\(\((\*\)\|\(\*\ \)\|\(\*)\)\|{\|}\)'
+
+	let nline = a:line_num
+	while nline > 0
+		let nline = prevnonblank(nline-1)
+		if getline(nline) !~? SKIP_LINES
+			break
+		endif
+	endwhile
+
+	return nline
+endfunction
+
+
+" ________________________________________________________________
+function! s:PurifyCode( line_num )
+	" Strip any trailing comments and whitespace
+	let pureline = 'TODO'
+	return pureline
+endfunction
+
+
+" ________________________________________________________________
+function! GetPascalIndent( line_num )
+
+	" Line 0 always goes at column 0
+	if a:line_num == 0
+		return 0
+	endif
+
+	let this_codeline = getline( a:line_num )
+
+
+	" SAME INDENT
+
+	" Middle of a three-part comment
+	if this_codeline =~ '^\s*\*'
+		return indent( a:line_num - 1)
+	endif
+
+
+	" COLUMN 1 ALWAYS
+
+	" Last line of the program
+	if this_codeline =~ '^\s*end\.'
+		return 0
+	endif
+
+	" Compiler directives, allowing "(*" and "{"
+	"if this_codeline =~ '^\s*\({\|(\*\)$\(IFDEF\|IFNDEF\|ELSE\|ENDIF\)'
+	if this_codeline =~ '^\s*\({\|(\*\)\$'
+		return 0
+	endif
+
+	" section headers
+	if this_codeline =~ '^\s*\(program\|procedure\|function\|type\)\>'
+		return 0
+	endif
+
+	" Subroutine separators, lines ending with "const" or "var"
+	if this_codeline =~ '^\s*\((\*\ _\+\ \*)\|\(const\|var\)\)$'
+		return 0
+	endif
+
+
+	" OTHERWISE, WE NEED TO LOOK FURTHER BACK...
+
+	let prev_codeline_num = s:GetPrevNonCommentLineNum( a:line_num )
+	let prev_codeline = getline( prev_codeline_num )
+	let indnt = indent( prev_codeline_num )
+
+
+	" INCREASE INDENT
+
+	" If the PREVIOUS LINE ended in these items, always indent
+	if prev_codeline =~ '\<\(type\|const\|var\)$'
+		return indnt + shiftwidth()
+	endif
+
+	if prev_codeline =~ '\<repeat$'
+		if this_codeline !~ '^\s*until\>'
+			return indnt + shiftwidth()
+		else
+			return indnt
+		endif
+	endif
+
+	if prev_codeline =~ '\<\(begin\|record\)$'
+		if this_codeline !~ '^\s*end\>'
+			return indnt + shiftwidth()
+		else
+			return indnt
+		endif
+	endif
+
+	" If the PREVIOUS LINE ended with these items, indent if not
+	" followed by "begin"
+	if prev_codeline =~ '\<\(\|else\|then\|do\)$' || prev_codeline =~ ':$'
+		if this_codeline !~ '^\s*begin\>'
+			return indnt + shiftwidth()
+		else
+			" If it does start with "begin" then keep the same indent
+			"return indnt + shiftwidth()
+			return indnt
+		endif
+	endif
+
+	" Inside a parameter list (i.e. a "(" without a ")"). ???? Considers
+	" only the line before the current one. TODO: Get it working for
+	" parameter lists longer than two lines.
+	if prev_codeline =~ '([^)]\+$'
+		return indnt + shiftwidth()
+	endif
+
+
+	" DECREASE INDENT
+
+	" Lines starting with "else", but not following line ending with
+	" "end".
+	if this_codeline =~ '^\s*else\>' && prev_codeline !~ '\<end$'
+		return indnt - shiftwidth()
+	endif
+
+	" Lines after a single-statement branch/loop.
+	" Two lines before ended in "then", "else", or "do"
+	" Previous line didn't end in "begin"
+	let prev2_codeline_num = s:GetPrevNonCommentLineNum( prev_codeline_num )
+	let prev2_codeline = getline( prev2_codeline_num )
+	if prev2_codeline =~ '\<\(then\|else\|do\)$' && prev_codeline !~ '\<begin$'
+		" If the next code line after a single statement branch/loop
+		" starts with "end", "except" or "finally", we need an
+		" additional unindentation.
+		if this_codeline =~ '^\s*\(end;\|except\|finally\|\)$'
+			" Note that we don't return from here.
+			return indnt - 2 * shiftwidth()
+		endif
+		return indnt - shiftwidth()
+	endif
+
+	" Lines starting with "until" or "end". This rule must be overridden
+	" by the one for "end" after a single-statement branch/loop. In
+	" other words that rule should come before this one.
+	if this_codeline =~ '^\s*\(end\|until\)\>'
+		return indnt - shiftwidth()
+	endif
+
+
+	" MISCELLANEOUS THINGS TO CATCH
+
+	" Most "begin"s will have been handled by now. Any remaining
+	" "begin"s on their own line should go in column 1.
+	if this_codeline =~ '^\s*begin$'
+		return 0
+	endif
+
+
+" ________________________________________________________________
+" Object/Borland Pascal/Delphi Extensions
+"
+" Note that extended-pascal is handled here, unless it is simpler to
+" handle them in the standard-pascal section above.
+
+
+	" COLUMN 1 ALWAYS
+
+	" section headers at start of line.
+	if this_codeline =~ '^\s*\(interface\|implementation\|uses\|unit\)\>'
+		return 0
+	endif
+
+
+	" INDENT ONCE
+
+	" If the PREVIOUS LINE ended in these items, always indent.
+	if prev_codeline =~ '^\s*\(unit\|uses\|try\|except\|finally\|private\|protected\|public\|published\)$'
+		return indnt + shiftwidth()
+	endif
+
+	" ???? Indent "procedure" and "functions" if they appear within an
+	" class/object definition. But that means overriding standard-pascal
+	" rule where these words always go in column 1.
+
+
+	" UNINDENT ONCE
+
+	if this_codeline =~ '^\s*\(except\|finally\)$'
+		return indnt - shiftwidth()
+	endif
+
+	if this_codeline =~ '^\s*\(private\|protected\|public\|published\)$'
+		return indnt - shiftwidth()
+	endif
+
+
+	" If nothing changed, return same indent.
+	return indnt
+endfunction
+