Build/Emoji.Build.ps1
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[ValidatePattern("\s(?>Unicode|UCD)")] param() # Push to the current location (this is redundant inside of a Pipeline, but good practice for interactive use) Push-Location $PSScriptRoot #region Download Unicode Character Dataset # If we don't have the latest zip if (-not $latestUnicodeZip) { # download it $latestUnicodeZip = Invoke-WebRequest https://unicode.org/Public/zipped/latest/UCD.zip } # Put the contents into UCD $UCDZipPath = Join-Path $PSScriptRoot "UCD.zip" $UCDPath = Join-Path $PSScriptRoot "UCD" if (-not (Test-path $UCDZipPath)) { [IO.File]::WriteAllBytes("$UCDZipPath",$latestUnicodeZip.Content) Expand-Archive -Path "$UCDZipPath" -DestinationPath "$UCDPath" -Force } #endregion Download Unicode Character Dataset #region Extract, Transform, and Load Named Emoji $allNamedEmoji = Get-ChildItem -Path $UCDPath -Recurse -Filter 'DerivedName.txt' | Import-Csv -Delimiter ';' -Header HexCode, Name $allUniquelyNamedEmoji = $allNamedEmoji | Group-Object Name | Where-Object Count -eq 1 $parentPath = $pwd | Split-Path $DataPath = Join-Path $parentPath "Data" if (-not (Test-Path $DataPath)) { New-Item -ItemType Directory -Path $DataPath -Force | Out-Null } $allNamedEmojiPath = (Join-Path $DataPath AllNamedEmoji.csv) @(foreach ($uniquelyNamedEmoji in $allUniquelyNamedEmoji) { $emojiName, $emojiHex = $uniquelyNamedEmoji.Name, "$($uniquelyNamedEmoji.Group[0].HexCode)".Trim() if ($emojiHex -match '\..') { continue } $emojiString = try { $ExecutionContext.InvokeCommand.ExpandString(('`u{',$emojiHex,'}' -join '')) } catch { $null } if ($emojiString) { [Ordered]@{Name="$emojiName";Hex="$emojiHex";String="$emojiString"} } }) | Export-Csv -Path $allNamedEmojiPath -Force Get-Item -Path $allNamedEmojiPath #endregion Extract, Transform, and Load Named Emoji #region Extract, Transform, and Load Emoji Blocks $allEmojiBlocks = Get-ChildItem -Path $UCDPath -Recurse -Filter 'Blocks.txt' | Import-Csv -Delimiter ';' -Header Range, BlockName | Where-Object Range | Where-Object Range -notlike '#*' $currentGeneralCategory = '' $allEmojiBlocksPath = (Join-Path $DataPath AllEmojiBlocks.csv) @(foreach ($emojiBlock in $allEmojiBlocks) { $rangeStart, $rangeEnd = $emojiBlock.Range -split '\.\.' [PSCustomObject][Ordered]@{ RangeStart = $rangeStart RangeEnd = $rangeEnd BlockName=$emojiBlock.BlockName } }) | Export-Csv -Path $allEmojiBlocksPath Get-Item $allEmojiBlocksPath #endregion Extract, Transform, and Load Emoji Categories Pop-Location |