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October 20, 2012 05:01
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Write-HTML - Like Write-Host, but cooler
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| <html> | |
| <head> | |
| <title>my script output</title> | |
| </head> | |
| <body style="color:white; background:black"> | |
| <pre> | |
| ######################## | |
| # # | |
| # my script output # | |
| # # | |
| ######################## | |
| <span style="color:#FF0000">my line of output</span> | |
| <span style="color:#00FF00"> my line John Stamos & some stuff</span> | |
| part 1 of line: <span style="color:#000000; background:#FFFFFF">part 2 of line in negative!</span> | |
| </pre> | |
| </body> | |
| </html> |
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| #### | |
| # EXAMPLE USAGE: somescript.ps1 | |
| ### | |
| $WriteHTMLDualOutput = $true | |
| write-html -head -title "my script output" | |
| write-html -fore red "my line of output" | |
| write-html -fore green "`tmy line $var & some stuff" | |
| write-html -nonewline "part 1 of line: " | |
| write-html -fore black -back white "part 2 of line in negative!" | |
| write-html -foot | |
| <# in terminal: (must use imagination) | |
| PS > .\somescript.ps1 | |
| ######################## | |
| # # | |
| # my script output # | |
| # # | |
| ######################## | |
| my line of output | |
| my line John Stamos & some stuff | |
| part 1 of line: part 2 of line in negative! | |
| PS > $WriteHTMLOutput > outfile.html | |
| PS > | |
| #> |
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| # write-html | |
| <# | |
| Works just like write-host, except returns a line of html. | |
| Intended so that you can output a script as HTML in the same format | |
| that it would appear in a terminal without changing a bunch of stuff | |
| in the script itself. | |
| basically wraps text in a big <pre> block with some colorful frills. | |
| Output is placed in the global variable $WriteHTMLOutput . | |
| intended usage: | |
| ### somescript.ps1 | |
| write-html -head -title "my script output" | |
| write-html -fore red "my line of output" | |
| write-html -fore green "my line " + $var + " and some stuff" | |
| write-html -nonewline "part 1 of line: " | |
| write-html -fore black -back white "part 2 of line in negative!" | |
| write-html -foot | |
| ### | |
| > somescript.ps1; $WriteHTMLOutput > myhtmlfile.html | |
| > firefox -new-tab .\myhtmlfile.html | |
| #### other usefulness: | |
| include this variable in your script to turn off/on | |
| regular write-host style output : | |
| $WriteHTMLToHost = $true (setting to false turns it off) | |
| or: | |
| $WriteHTMLDualOutput = $true | |
| to write-host and write-HTML simultaneously. | |
| caveat: can't do '"' $foo '"' ; have to do "$foo" or "$($foo.member)" | |
| -head : write opening html doc stuff including title, body, etc. | |
| required. in this context: | |
| -backgroundcolor - sets default for document | |
| -fore .. - sets default for document | |
| -title - <title> tag | |
| -tail - literally just "</pre></body></html>" | |
| needed, however, or else your output will have too many newline's: | |
| (-tail does '-join ""' on the output, so please add this at the bottom.) | |
| otherwise: -fore/back/nonewline do what you'd think | |
| title is ignored. -head or foot just override. | |
| To override default HTML colors, create a variable in your profile.ps1 (or | |
| declare one in your session) named $global:WriteHTMLColors , and copy the | |
| hash from this file to that variable, with the desired modifications. | |
| #> | |
| param($Output,[string]$ForegroundColor = "",[string]$BackgroundColor = "",[switch]$NoNewline,[switch]$Header,[string]$Title = "",[switch]$Footer); | |
| if ($global:WriteHTMLColors) { | |
| $colors = $global:WriteHTMLColors | |
| } else { | |
| $colors = @{ | |
| "Black" = "#000000"; | |
| "DarkBlue" = "#00008B"; | |
| "DarkGreen" = "#006400"; | |
| "DarkCyan" = "#008B8B"; | |
| "DarkMagenta" = "#8B008B"; | |
| "DarkYellow" = "#BDB76B"; #html "DarkKhaki" | |
| "DarkGray" = "#808080"; #html "Gray" | |
| "Gray" = "#A9A9A9"; #html "DarkGray" ... wtf? | |
| "Blue" = "#0000FF"; | |
| "Green" = "#00FF00"; #html "Lime" | |
| "Cyan" = "#00FFFF"; | |
| "Red" = "#FF0000"; | |
| "Magenta" = "#FF00FF"; | |
| "Yellow" = "#FFFF00"; | |
| "White" = "#FFFFFF"; | |
| } | |
| } | |
| Function htmlify { | |
| param($s) | |
| $s = $s -replace "&", "&" | |
| $s = $s -replace ">", ">" | |
| $s = $s -replace "<", "<" | |
| $s = $s -replace """", """ | |
| return $s | |
| } | |
| Function Make-StyleString { | |
| param($color,$background,[switch]$ForceDefaults) | |
| if (!($color -or $background)) { | |
| if ($ForceDefaults) { | |
| return " style=""color:$($colors.get_item('White')); background:$($colors.get_item('black'))""" | |
| } else { | |
| return "" | |
| } | |
| } else { | |
| $style = ' style="' | |
| if ($color) { | |
| if ($colors.ContainsKey($color)) { | |
| $style += "color:$($colors.get_item($color))" | |
| } elseif ($color -match "^[a-fA-F0-9]{6}$") { | |
| $style += "color:#$color" | |
| } else { | |
| write-host "skipping unknown foregroundcolor: $color" | |
| $style += "color:white" | |
| } | |
| } else { | |
| if ($ForceDefaults) { | |
| $style += "color:white" #default foreground | |
| } | |
| } | |
| if ($color -and $background) { | |
| $style += "; " | |
| } | |
| if ($background) { | |
| if ($colors.ContainsKey($background)) { | |
| $style += "background:$($colors.get_item($background))" | |
| } elseif ($background -match "^[a-fA-F0-9]{6}$") { | |
| $style += "background:#$background" | |
| } else { | |
| write-host "skipping unknown backgroundcolor: $background" | |
| $style += "background:black" | |
| } | |
| } else { | |
| if ($ForceDefaults) { | |
| $style += "; background:black" #default background | |
| } | |
| } | |
| $style += '"' | |
| } | |
| return $style | |
| } | |
| ### main : | |
| if ($WriteHTMLToHost -or $WriteHTMLDualOutput) { | |
| $OutString = "Write-host " | |
| if ($Header) { | |
| if ($Title) { | |
| $t = $Title | |
| } else { | |
| $t = "Write-HTML Output" | |
| } | |
| $box = "##" | |
| $blank = "" | |
| foreach ($i in 1..$($t.length + 6)) { | |
| $box += "#" | |
| $blank += " " | |
| } | |
| $OutString += """$box`n#$blank#`n# $t #`n#$blank#`n$box""" | |
| } elseif ($Footer) { | |
| #pass | |
| } else { | |
| if ($NoNewline) { | |
| $OutString += "-nonewline " | |
| } | |
| if (($ForegroundColor) -and ($colors.ContainsKey($ForegroundColor))) { | |
| $OutString += "-ForegroundColor $ForegroundColor " | |
| } | |
| if (($BackgroundColor) -and ($colors.ContainsKey($BackgroundColor))) { | |
| $OutString += "-BackgroundColor $BackgroundColor " | |
| } | |
| $OutString += """$Output""" | |
| } | |
| Invoke-Expression $OutString | |
| } | |
| if (!($WriteHTMLToHost) -or $WriteHTMLDualOutput) { | |
| if ($Header -and !($Footer)) { | |
| $global:WriteHTMLOutput = @() | |
| $style = Make-StyleString $ForegroundColor $BackgroundColor -ForceDefaults | |
| if ($Title -eq "") { | |
| $t = "Write-HTML output" | |
| } else { | |
| $t = htmlify($Title) | |
| } | |
| $global:WriteHTMLOutput += "<html>`n<head>`n<title>$t</title>`n</head>`n<body$($style)>`n<pre>`n" | |
| $box = "##" | |
| $blank = "" | |
| foreach ($i in 1..$($t.length + 6)) { | |
| $box += "#" | |
| $blank += " " | |
| } | |
| $global:WriteHTMLOutput += "$box`n#$blank#`n# $t #`n#$blank#`n$box`n" | |
| } elseif ($Footer -and !($Header)) { | |
| $global:WriteHTMLOutput += "</pre>`n</body>`n</html>" | |
| $global:WriteHTMLOutput = $global:WriteHTMLOutput -join "" | |
| } elseif ($Header -and $Footer) { | |
| $global:WriteHTMLOutput = @() | |
| $style = Make-StyleString $ForegroundColor $BackgroundColor -ForceDefaults | |
| if ($Title -eq "") { | |
| $t = "Write-HTML output" | |
| } else { | |
| $t = htmlify($Title) | |
| } | |
| $global:WriteHTMLOutput += "<html>`n<head>`n<title>$t</title>`n</head>`n<body$($style)>`n<pre>`n" | |
| $box = "##" | |
| $blank = "" | |
| foreach ($i in 1..$($t.length + 6)) { | |
| $box += "#" | |
| $blank += " " | |
| } | |
| $global:WriteHTMLOutput += "$box`n#$blank#`n# $t #`n#$blank#`n$box`n" | |
| $global:WriteHTMLOutput += "`n</pre>`n</body></html>" | |
| $global:WriteHTMLOutput = $global:WriteHTMLOutput -join "" | |
| } else { | |
| $o = htmlify $Output | |
| $style = Make-StyleString $ForegroundColor $BackgroundColor | |
| if ($NoNewline) { | |
| $nl = "" | |
| } else { | |
| $nl = "`n" | |
| } | |
| if ($o) { | |
| if ($style) { | |
| $global:WriteHTMLOutput += "<span$($style)>$o</span>$nl" | |
| } else { | |
| $global:WriteHTMLOutput += "$o$nl" | |
| } | |
| } else { | |
| $global:WriteHTMLOutput += "$nl" | |
| } | |
| } | |
| } |
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