Public/PsStrUtil.ps1
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<############################################################################ # Find line of code by regex1, and if following line matches regex2, then # append supplied code after that line ############################################################################> Function AppendCodeBeforeMatchingLine([string]$csFile, [string]$regex, [string]$codeToAppend, [string]$unlessALineMatchesThisRegex) { $contents = (Get-Content $csFile) if($contents | ?{$_ -match $unlessALineMatchesThisRegex}) { Write-Host "### File '$csFile' already matches '$unlessALineMatchesThisRegex', no need to change"o # already matches, skip it } else { [bool]$foundMatch = $false for($index = 0; $index -lt $contents.Length; $index++) { if($contents[$index] -match $regex) { $contents[$index] = $codeToAppend + "`r`n" + $contents[$index] $foundMatch = $true break } } if($foundMatch -eq $false) { $msg = @" AppendCodeBeforeMatchingLine could not find pattern '$regex' in file '$csFile' CALLSTACK:$(Get-PSCallStack | Out-String) "@ throw $msg } $contents | Set-Content $csFile } } <############################################################################ # Replace all occurences of $lookFor with $replaceWith in $file save # results in place. ############################################################################> Function ReplacePatternInFile([string]$file, [string]$lookFor, [string]$replaceWith) { (Get-Content $file) -replace $lookFor,$replaceWith | Out-FileUtf8NoBom $file } <############################################################################ # Find line of code by regex1, and if following line matches regex2, then # append supplied code after that line ############################################################################> Function AppendCodeAfterTwoMatchingLines([string]$csFile, [string]$regex1, [string]$regex2, [string]$codeToAppend, [string]$unlessALineMatchesThisRegex) { $contents = (Get-Content $csFile) if($contents | ?{$_ -match $unlessALineMatchesThisRegex}) { Write-Host "### File '$csFile' already matches '$unlessALineMatchesThisRegex', no need to change" # already matches, skip it } else { [bool]$foundMatch = $false for($index = 1; $index -lt $contents.Length; $index++) { if( ($contents[$index - 1] -match $regex1) -and ($contents[$index] -match $regex2) ) { $contents[$index] = $contents[$index] + "`r`n" + $codeToAppend $foundMatch = $true break } } if($foundMatch -eq $false) { $msg = @" AppendCodeAfterTwoMatchingLines could not find patterns '$regex1' followed by '$regex2' in file '$csFile' CALLSTACK:$(Get-PSCallStack | Out-String) "@ throw $msg } $contents | Set-Content $csFile } } <############################################################################ # Cleanse multiline string for purposes of string comparison for unit testing # # Remove leading and trailing whitespace from each line # Collapse all remaining contiguous spaces/tabs into single space # Ensure all newlines are \r\n not just \n # Remove all blank lines ############################################################################> Function Cleanse-String() { [cmdletbinding()] Param( [parameter(ValueFromPipeline)][string]$inputStr ) [string[]]$lines = (($inputStr -split '[\r\n]') |? {$_} ) [string]$result = "" [int] $index = -1 | Out-Null for($index = 0; $index -lt $lines.length; $index++) { $line = $lines[$index] # remove leading space $line = $line -replace '^\s+', '' # remove trailing space $line = $line -replace '\s+$', '' # collapse internal space $line = $line -replace '\s+', ' ' if($line.length -gt 0) { if($result -eq "") { $result = $line } else { $result = $result + "`r`n$line" } } } return $result } <############################################################################ # Convert strings like appleSauce or AppleSauce or APPLE_SAUCE to apple-sauce ############################################################################> Function ConvertTo-KebabCase() { [cmdletbinding()] Param( [parameter(ValueFromPipeline)][string]$str ) if([string]::IsNullOrWhitespace($str) -or ($str -match " ")) { throw "Cannot convert '$str' to kebab case, invalid string" } else { [string]$result = ($str -creplace "([a-z])([A-Z])","`$1_`$2" -creplace "-","_" -split "_" | % { $_.ToLower() }) -join "-" return $result } } <############################################################################ # Convert strings like appleSauce or AppleSauce or apple-sauce to APPLE_SAUCE ############################################################################> Function ConvertTo-AllCapsCase() { [cmdletbinding()] Param( [parameter(ValueFromPipeline)][string]$str ) if([string]::IsNullOrWhitespace($str) -or ($str -match " ")) { throw "Cannot convert '$str' to all caps case, invalid string" } else { [string]$result = ($str -creplace "([a-z])([A-Z])","`$1_`$2" -creplace "-","_" -split "_" | % { $_.ToUpper() }) -join "_" return $result } } <############################################################################ # Convert strings like AppleSauce or apple-sauce or APPLE_SAUCE to appleSauce ############################################################################> Function ConvertTo-LowerCamelCase() { [cmdletbinding()] Param( [parameter(ValueFromPipeline)][string]$str ) if([string]::IsNullOrWhitespace($str) -or ($str -match " ")) { throw "Cannot convert '$str' to lower camel case, invalid string" } else { [string]$result = ($str -creplace "([a-z])([A-Z])","`$1_`$2" -creplace "-","_" -split "_" | % { $_.substring(0, 1).ToUpper() + $_.substring(1).ToLower() }) -join "" $result = $result.substring(0,1).ToLower() + $result.substring(1) return $result } } <############################################################################ # Convert strings like appleSauce or apple-sauce or APPLE_SAUCE to AppleSauce ############################################################################> Function ConvertTo-CapitalCamelCase() { [cmdletbinding()] Param( [parameter(ValueFromPipeline)][string]$str ) if([string]::IsNullOrWhitespace($str) -or ($str -match " ")) { throw "Cannot convert '$str' to capital camel case, invalid string" } else { [string]$result = ($str -creplace "([a-z])([A-Z])","`$1_`$2" -creplace "-","_" -split "_" | % { $_.substring(0, 1).ToUpper() + $_.substring(1).ToLower() }) -join "" return $result } } <############################################################################ # Convert strings like appleSauce or apple-sauce or APPLE_SAUCE or AppleSauce # to "Apple Sauce" ############################################################################> Function ConvertTo-TitleCase() { [cmdletbinding()] Param( [parameter(ValueFromPipeline)][string]$str ) if([string]::IsNullOrWhitespace($str) -or ($str -match " ")) { throw "Cannot convert '$str' to title case, invalid string" } else { [string]$result = ($str -creplace "([a-z])([A-Z])","`$1_`$2" -creplace "-","_" -split "_" | % { $_.substring(0, 1).ToUpper() + $_.substring(1).ToLower() }) -join " " return $result } } |