Fix (keepspaces): Keep non-breaking spaces between words as spaces

ConvertOneNote2MarkDown-v2.Tests.ps1

@@ -1201,6 +1201,9 @@ Describe 'New-SectionGroupConversionConfig' -Tag 'Unit' {
 
             $fakeMarkdownContent = @"
 hello world$( [char]0x00A0 )
+press the$( [char]0x00A0 ) Windows$( [char]0x00A0 )key
+$( [char]0x00A0 )$( [char]0x00A0 )no leading non-breaking spaces
+    $( [char]0x00A0 )keeps its indentation
 
 - foo
 
@@ -1244,11 +1247,14 @@ 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 non-breaking spaces at line boundaries but keep them as spaces between words, 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 $( @"
 hello world
+press the Windows key
+no leading non-breaking spaces
+    keeps its indentation
 
 - foo
   - foo1

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, non-breaking spaces from blank lines and line ends (other non-breaking spaces become normal spaces), and `>` after unordered lists
 1: Clear - Default
 2: Don't clear
 '@
@@ -933,11 +933,24 @@ Function New-SectionGroupConversionConfig {
                                 @{
                                     description = 'Clear extra newlines between unordered (bullet) and ordered (numbered) list items, non-breaking spaces from blank lines, and `>` after unordered lists'
                                     replacements = @(
-                                        # Remove non-breaking spaces
+                                        # Non-breaking spaces: web-clipped content is full of them, often as the only space between two words
+                                        # (e.g. 'the<nbsp>Windows<nbsp>key'). Deleting them all glued those words together ('Windowskey'), so:
+                                        # remove them at the end of a line (incl. lines that only contain them), since converting them there could
+                                        # create a trailing-double-space hard line break,
                                         @{
-                                            searchRegex = [regex]::Escape([char]0x00A0)
+                                            searchRegex = '(?m)[ \t\u00A0]*\u00A0[ \t\u00A0]*$'
                                             replacement = ''
                                         }
+                                        # remove them at the start of a line, keeping its indentation, since converting them there could turn the line into an indented code block,
+                                        @{
+                                            searchRegex = '(?m)^([ \t]*)\u00A0[ \t\u00A0]*'
+                                            replacement = '$1'
+                                        }
+                                        # and turn any other run of them (with adjacent spaces) into a single space
+                                        @{
+                                            searchRegex = '[ \t]*\u00A0[ \t\u00A0]*'
+                                            replacement = ' '
+                                        }
                                         # Remove an extra newline between each occurrence of '- some unordered list item'
                                         @{
                                             searchRegex = '(\s*)- ([^\r\n]*)\r*\n\r*\n(?=\s*-)'

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, non-breaking spaces from blank lines and line ends (other non-breaking spaces become normal 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.