internal/functions/generate-figtextlines.ps1
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<# .SYNOPSIS Generates FIGlet text lines from input text using specified FIGlet characters and options. .DESCRIPTION This function processes input text and converts it into FIGlet text lines using the provided FIGlet character definitions (`figChars`) and options (`opts`). It handles whitespace, character smushing, and layout rules to produce the final FIGlet text output. .PARAMETER txt The input text to be converted into FIGlet text lines. .PARAMETER figChars A hashtable containing the FIGlet character definitions. Each character maps to its FIGlet representation. .PARAMETER opts A hashtable containing options for generating FIGlet text, including: - `height`: The height of the FIGlet characters. - `width`: The maximum width of the output text. - `whitespaceBreak`: A flag indicating whether to break lines at whitespace. - `printDirection`: The direction in which the text is printed (e.g., left-to-right or right-to-left). - `fittingRules.hLayout`: Specifies the horizontal layout type (e.g., Full, Fitted, ControlledSmushing). .EXAMPLE $txt = "Hello, World!" $figChars = @{ 72 = @("H", "H") 101 = @("e", "e") 108 = @("l", "l") 111 = @("o", "o") 44 = @(",", ",") 32 = @(" ", " ") 87 = @("W", "W") 114 = @("r", "r") 100 = @("d", "d") 33 = @("!", "!") } $opts = @{ height = 8 width = 80 whitespaceBreak = $true printDirection = 0 fittingRules = @{ hLayout = [LayoutType]::ControlledSmushing } } $result = Generate-FigTextLines -txt $txt -figChars $figChars -opts $opts This example generates FIGlet text lines for the input "Hello, World!" using the specified FIGlet characters and options. .NOTES This function assumes the existence of helper functions such as `New-FigChar` for creating FIGlet characters and `Join-FigArray` for combining FIGlet text lines. Author: Oleksandr Nikolaiev (@onikolaiev) #> function Generate-FigTextLines { [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseApprovedVerbs", "")] [Diagnostics.CodeAnalysis.SuppressMessageAttribute('PSUseSingularNouns','')] param ( [string]$txt, # Input text [hashtable]$figChars, # FIGlet characters [hashtable]$opts # Options object ) $overlap = 0 $height = $opts.height $outputFigLines = @() $figWords = @() $outputFigText = New-FigChar -len $height $nextFigChars = $null if ($opts.width -gt 0 -and $opts.whitespaceBreak) { $nextFigChars = @{ chars = @() overlap = $overlap } } if ($opts.printDirection -eq 1) { $txt = ($txt.ToCharArray() | ForEach-Object { $_ })[-1..-($txt.Length)] -join "" } $len = $txt.Length for ($charIndex = 0; $charIndex -lt $len; $charIndex++) { $char = $txt.Substring($charIndex, 1) $isSpace = $char -match "\s" $figChar = $figChars[[int][char]$char] $textFigLine = $null if ($figChar) { if ($opts.fittingRules.hLayout -ne [LayoutType]::Full) { $overlap = 10000 for ($row = 0; $row -lt $opts.height; $row++) { $overlap = [math]::Min( $overlap, (Get-HorizontalSmushLength -txt1 $outputFigText[$row] -txt2 $figChar[$row] -opts $opts) ) } $overlap = if ($overlap -eq 10000) { 0 } else { $overlap } } if ($opts.width -gt 0) { if ($opts.whitespaceBreak) { $textFigWord = Join-FigArray -array ($nextFigChars.chars + @(@{ fig = $figChar; overlap = $overlap })) -len $height -opts $opts $textFigLine = Join-FigArray -array ($figWords + @(@{ fig = $textFigWord; overlap = $nextFigChars.overlap })) -len $height -opts $opts $maxWidth = Get-FigLinesWidth -textLines $textFigLine } else { $textFigLine = Horizontal-Smush -textBlock1 $outputFigText -textBlock2 $figChar -overlap $overlap -opts $opts $maxWidth = Get-FigLinesWidth -textLines $textFigLine } if ($maxWidth -ge $opts.width -and $charIndex -gt 0) { if ($opts.whitespaceBreak) { $outputFigText = Join-FigArray -array $figWords[0..($figWords.Count - 2)] -len $height -opts $opts if ($figWords.Count -gt 1) { $outputFigLines += $outputFigText $outputFigText = New-FigChar -len $height } $figWords = @() } else { $outputFigLines += $outputFigText $outputFigText = New-FigChar -len $height } } } if ($opts.width -gt 0 -and $opts.whitespaceBreak) { if (-not $isSpace -or $charIndex -eq $len - 1) { $nextFigChars.chars += @{ fig = $figChar; overlap = $overlap } } if ($isSpace -or $charIndex -eq $len - 1) { $tmpBreak = $null while ($true) { $textFigLine = Join-FigArray -array $nextFigChars.chars -len $height -opts $opts $maxWidth = Get-FigLinesWidth -textLines $textFigLine if ($maxWidth -ge $opts.width) { $tmpBreak = Break-Word -figChars $nextFigChars.chars -len $height -opts $opts $nextFigChars = @{ chars = $tmpBreak.chars } $outputFigLines += $tmpBreak.outputFigText } else { break } } if ($maxWidth -gt 0) { if ($tmpBreak) { $figWords += @{ fig = $textFigLine; overlap = 1 } } else { $figWords += @{ fig = $textFigLine; overlap = $nextFigChars.overlap } } } if ($isSpace) { $figWords += @{ fig = $figChar; overlap = $overlap } $outputFigText = New-FigChar -len $height } if ($charIndex -eq $len - 1) { $outputFigText = Join-FigArray -array $figWords -len $height -opts $opts } $nextFigChars = @{ chars = @() overlap = $overlap } continue } } $outputFigText = Horizontal-Smush -textBlock1 $outputFigText -textBlock2 $figChar -overlap $overlap -opts $opts } } if (Get-FigLinesWidth -textLines $outputFigText -gt 0) { $outputFigLines += $outputFigText } if (-not $opts.showHardBlanks) { $outputFigLines = $outputFigLines | ForEach-Object { $_ | ForEach-Object { $_ -replace [regex]::Escape($opts.hardBlank), " " } } } return $outputFigLines } |