added comments to ps1

translator.ps1

@@ -1,22 +1,36 @@
+# read in the xib, original encoding is utf8
 $lines = Get-Content .\MainMenu.xib -Encoding UTF8
 
+# set new variable for output
+# this is where we make our translation edits
 $output = $lines
 
+# pull out every line with a string keyed "NSDev"
 $regex = '<string type="base64-UTF8" key="NSDev">(?<txt>.+?)<\/string>'
 
+# regex results
 $strings = [regex]::Matches($lines,$regex)
 
+# public translation API - no key required!
+# throttled to 40 requests per 60 seconds
+# one request per 1.5 seconds
 $url = 'https://translate.mentality.rip/translate'
 
+# log errors
 $errors = @()
 
+# create a CSV of translated values, to make corrections easier
+# this is because the final XIB still has base64-encoded strings
 $csv = 'Base64JP,UTF8JP,Base64EN,UTF8EN'
 
+# process every regex match
 foreach($string in $strings) {
-	# get the value
+	# get the base64 value
+	# uses named regex key
 	$txt = $string.Groups["txt"].Value
 
 	# append appropriate padding
+	# sauce: https://gist.github.com/obscuresec/82775093ad892ef5fd00
 	$mod = ($txt.length % 4)   
 	switch ($mod) {
 		'0' {$txtp = $txt}
@@ -29,19 +43,19 @@ foreach($string in $strings) {
 	# convert the base64 to UTF8 text
 	$utf = [Text.Encoding]::Utf8.GetString([Convert]::FromBase64String($txtp))
 
-	# get current array index
+	# get current array index (for progress bar)
 	$idx = [array]::IndexOf($strings,$string)
 
-	# get percent complete
+	# get percent complete (for progress bar)
 	$pct = (($idx + 1) / $strings.Count) * 100
 
-	# round the percent
+	# round the percent to one decimal
 	$pcn = [math]::Round($pct,2)
 
 	# update the status bar
 	Write-Progress -Activity ("Translating <<" + $utf + ">>") -Status "$pcn% Complete:" -PercentComplete $pct
 
-	# create the json request
+	# create the json request using Japanese string
 	$json = '{"q":"' + $utf + '","source":"ja","target":"en"}'
 
 	# add delay due to api throttle
@@ -66,10 +80,14 @@ foreach($string in $strings) {
 		# add to the csv
 		$csv += "`n""$txt"",""$utf"",""$txt64clean"",""$ttxt"""
 	} catch {
+		# couldn't translate, probably because it's already English
 		Write-Host ("Couldn't translate <<" + $utf + ">>")
 		$errors += $utf
 	}
 }
 
+# save the xib
 $output | Out-File Output.xib -Encoding utf8
+
+# save the csv
 $csv | Out-File output.csv -Encoding utf8