Add openscad comments (#545)

Co-authored-by: Caleb Maclennan <caleb@alerque.com>

autoload/nerdcommenter.vim

@@ -277,6 +277,7 @@ let s:delimiterMap = {
     \ 'omnimark': { 'left': ';' },
     \ 'ooc': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
     \ 'openroad': { 'left': '//' },
+    \ 'openscad': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
     \ 'opl': { 'left': 'REM' },
     \ 'ora': { 'left': '#' },
     \ 'ox': { 'left': '//' },
@@ -406,6 +407,7 @@ let s:delimiterMap = {
     \ 'texmf': { 'left': '%' },
     \ 'tf': { 'left': '#' },
     \ 'tidy': { 'left': '#' },
+    \ 'tjp': { 'left': '//', 'leftAlt': '/*', 'rightAlt': '*/' },
     \ 'tla': { 'left': '\\*', 'leftAlt': '(*', 'rightAlt': '*)' },
     \ 'tli': { 'left': '#' },
     \ 'tmux': { 'left': '#' },
@@ -1023,8 +1025,7 @@ function! s:CommentLinesToggle(forceNested, firstLine, lastLine) abort
     let currentLine = a:firstLine
 
     let align = g:NERDDefaultAlign
-    let lookBehind = align ==# 'previous' && currentLine != 1 && s:IsCommentedFromStartOfLine(s:Left(), getline(currentLine - 1))
-    let leftAlignIndx = align ==# 'start' ? 0 : s:LeftMostIndx(a:forceNested, 0, a:firstLine - lookBehind, a:lastLine)
+    let leftAlignIndx = align ==# 'start' ? 0 : s:LeftMostIndx(a:forceNested, 0, a:firstLine, a:lastLine)
     let rightAlignIndx = s:RightMostIndx(a:forceNested, 0, a:firstLine, a:lastLine)
     let rightAlignIndx = rightAlignIndx + strlen(s:Left({'space': 1}))
 
@@ -1042,7 +1043,7 @@ function! s:CommentLinesToggle(forceNested, firstLine, lastLine) abort
                 let theLine = s:SwapOuterMultiPartDelimsForPlaceHolders(theLine)
             endif
 
-            if align ==# 'left' || align ==# 'start' || align ==# 'both' || align ==# 'previous'
+            if align ==# 'left' || align ==# 'start' || align ==# 'both'
                 let theLine = s:AddLeftDelimAligned(s:Left({'space': 1}), theLine, leftAlignIndx)
             else
                 let theLine = s:AddLeftDelim(s:Left({'space': 1}), theLine)

doc/nerdcommenter.txt

@@ -503,8 +503,8 @@ change the filetype back: >
                                       style sexy comments.
 
 |'NERDDefaultAlign'|                  Specifies the default alignment to use,
-                                      one of 'none', 'left', 'start', 'both'
-                                      or 'previous'.
+                                      one of 'none', 'left', 'start', or
+                                      'both'.
 
 |'NERDToggleCheckAllLines'|           Enable NERDCommenterToggle to check
                                       all selected lines is commented or not.
@@ -784,7 +784,7 @@ deleted when uncommenting a line.
 
 ------------------------------------------------------------------------------
                                                              *'NERDDefaultAlign'*
-Values: 'none', 'left', 'start', 'both', 'previous'.
+Values: 'none', 'left', 'start', 'both'
 Default 'none'.
 
 Specifies the default alignment to use when inserting comments.