RegEx/C/IfDef.regex.source.ps1
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$myName = ($MyInvocation.MyCommand.ScriptBlock.File | Split-Path -Leaf) -replace '\.source', '' -replace '\.ps1', '.txt' $myRoot = $MyInvocation.MyCommand.ScriptBlock.File | Split-Path $r =Write-RegEx -Description @' Matches C/C++ #if/#ifdef/#ifndef .. #endif '@ -Pattern "\#\s{0,}" -Comment " As long as we're not after comments, Match the #, followed by" -Modifier Multiline -NotAfter '//' -Before 'if' | Write-RegEx -Name If -Pattern 'if[^\s]+' -Comment "Match <If> (and the rest of the word)" | Write-RegEx -Pattern '.+?$' -Name 'Condition' -Comment "the <Condition> is anything until the end of the line" | Write-RegEx -Atomic -Or @( Write-RegEx -LiteralCharacter '#' -Not -Repeat -Comment "Any non-preprocessor character matches, and doesn't change the balance" Write-RegEx -NotAfter '//' -Pattern '\#if.+?$' | Write-RegEx -Name 'Depth' -Comment "An #if Increases the <Depth>" Write-RegEx -NotAfter '//' -Pattern '\#endif' | Write-RegEx -Name '-Depth' -Comment "An EndIf Decreases the Depth" Write-RegEx -LiteralCharacter '#' -Comment 'Match any remaining #' ) -Description "Now things get tricky. Because ifdefs can nest, we need a balancing group" | Write-RegEx -Greedy | Write-Regex -If 'Depth' -Then '?!' -Comment "Match until EndIf is balanced" | Write-RegEx -NotAfter '//' -Pattern '\#endif' -Comment "Match the endIf" | Set-Content -Path (Join-Path $myRoot $myName) -Encoding UTF8 -PassThru |