Enhancement (config): Add ability for $keepspaces option to strip empty paragraphs

ConvertOneNote2MarkDown-v2.Tests.ps1

@@ -1233,6 +1233,30 @@ hello world$( [char]0x00A0 )
 some new paragraph
 some more
 
+$( [char]0x00A0 )
+
+text after an empty paragraph
+
+$( [char]0x00A0 )
+
+$( [char]0x00A0 )
+
+text after two empty paragraphs
+
+- qux
+
+  $( [char]0x00A0 )
+
+- quux
+
+> quote
+>
+> $( [char]0x00A0 )
+>
+> quote after an empty paragraph
+
+$( [char]0x00A0 )
+
 "@ -replace "`r", '' # On some Windows Powershell 5 versions, a here-string will contain `\r`, so let's ensure that doesn't happen.
 
             foreach ($pageCfg in $result) {
@@ -1244,7 +1268,7 @@ some more
                     }
                 }
 
-                # Should remove extra newline between unordered and ordered lists, remove non-breaking spaces, and '>' from ordered lists. Ignore first 8 lines for page header
+                # Should remove extra newline between unordered and ordered lists, remove empty paragraphs, remove non-breaking spaces, and '>' from ordered lists. Ignore first 8 lines for page header
                 $split = $mutated -split "`n"
                 $expectedBody = $split[8..($split.Count - 1)] -join "`n"
                 $expectedBody | Should -Be $( @"
@@ -1271,6 +1295,17 @@ some other text
 some new paragraph
 some more
 
+text after an empty paragraph
+
+text after two empty paragraphs
+
+- qux
+- quux
+
+quote
+
+quote after an empty paragraph
+
 "@ -replace "`r", '') # On some Windows Powershell 5 versions, a here-string will contain `\r`, so let's ensure that doesn't happen.
             }
 

ConvertOneNote2MarkDown-v2.ps1

@@ -152,7 +152,7 @@ Whether to include page timestamp and separator at top of document
         }
         keepspaces = @{
             description = @'
-Whether to clear extra newlines between unordered (bullet) and ordered (numbered) list items, non-breaking spaces from blank lines, and `>` after unordered lists
+Whether to clear extra newlines between unordered (bullet) and ordered (numbered) list items, empty paragraphs (blank lines containing only non-breaking spaces), non-breaking spaces, and `>` after unordered lists
 1: Clear - Default
 2: Don't clear
 '@
@@ -931,8 +931,13 @@ Function New-SectionGroupConversionConfig {
                             }
                             if ($config['keepspaces']['value'] -eq 1 ) {
                                 @{
-                                    description = 'Clear extra newlines between unordered (bullet) and ordered (numbered) list items, non-breaking spaces from blank lines, and `>` after unordered lists'
+                                    description = 'Clear extra newlines between unordered (bullet) and ordered (numbered) list items, empty paragraphs (blank lines containing only non-breaking spaces), non-breaking spaces, and `>` after unordered lists'
                                     replacements = @(
+                                        # Remove empty paragraphs, including the blank line before them. Pandoc converts each empty paragraph to a line containing only a non-breaking space, which would otherwise leave three blank lines between paragraphs
+                                        @{
+                                            searchRegex = '\r*\n[ \t>]*\r*\n[ \t>]*\xA0[\xA0 \t]*(?=\r*\n|$)'
+                                            replacement = ''
+                                        }
                                         # Remove non-breaking spaces
                                         @{
                                             searchRegex = [regex]::Escape([char]0x00A0)

README.md

@@ -29,7 +29,7 @@ The powershell script `ConvertOneNote2MarkDown-v2.ps1` will utilize the OneNote
   * `markdown_phpextra` (PHP Markdown Extra)
   * `markdown_strict` (original unextended Markdown)
   * Improved headers, with title now as a `#` heading, standardized `DateTime` format for created and modified dates, and horizontal line to separate from rest of document
-* Choose whether to clear extra newlines between unordered (bullet) and ordered (numbered) list items, non-breaking spaces from blank lines, and `>` after unordered lists, which are created when converting with Pandoc
+* Choose whether to clear extra newlines between unordered (bullet) and ordered (numbered) list items, empty paragraphs (blank lines containing only non-breaking spaces), non-breaking spaces, and `>` after unordered lists, which are created when converting with Pandoc
 * Choose whether to remove `\` escape symbol that are created when converting with Pandoc
 * Choose whether to use Line Feed (`LF`) or Carriage Return + Line Feed (`CRLF`) for new lines
 * Choose whether to include a `.pdf` export alongside the `.md` file. `.md` does not preserve `InkDrawing` (i.e. overlayed drawings, highlights, pen marks) absolute positions within a page, but a `.pdf` export is a complete page snapshot that preserves `InkDrawing` absolute positions within a page.

config.example.ps1

@@ -68,7 +68,7 @@ $conversion = 'markdown-simple_tables-multiline_tables-grid_tables+pipe_tables'
 # 2: Don't include
 $headerTimestampEnabled = 1
 
-# Whether to clear extra newlines between unordered (bullet) and ordered (numbered) list items, non-breaking spaces from blank lines, and `>` after unordered lists
+# Whether to clear extra newlines between unordered (bullet) and ordered (numbered) list items, empty paragraphs (blank lines containing only non-breaking spaces), non-breaking spaces, and `>` after unordered lists
 # 1: Clear - Default
 # 2: Don't clear
 $keepspaces = 1