116 lines
4.1 KiB
Java
116 lines
4.1 KiB
Java
// run: java tools/VerifyTranslatedStringFormatting.java
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// Reads all localized strings and makes sure they contain valid formatting placeholders matching the original English strings to avoid crashes.
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import org.w3c.dom.*;
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import javax.xml.parsers.*;
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import java.io.*;
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import java.util.*;
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import java.util.regex.*;
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public class VerifyTranslatedStringFormatting{
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// %[argument_index$][flags][width][.precision][t]conversion
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private static final String formatSpecifier="%(\\d+\\$)?([-#+ 0,(\\<]*)?(\\d+)?(\\.\\d+)?([tT])?([a-zA-Z%])";
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private static final Pattern fsPattern=Pattern.compile(formatSpecifier);
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private static HashMap<String, List<String>> placeholdersInStrings=new HashMap<>();
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private static int errorCount=0;
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public static void main(String[] args) throws Exception{
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DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
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factory.setNamespaceAware(false);
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DocumentBuilder builder=factory.newDocumentBuilder();
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Document doc;
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try(FileInputStream in=new FileInputStream("mastodon/src/main/res/values/strings.xml")){
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doc=builder.parse(in);
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}
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NodeList list=doc.getDocumentElement().getChildNodes(); // why does this stupid NodeList thing exist at all?
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for(int i=0;i<list.getLength();i++){
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if(list.item(i) instanceof Element el){
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String name=el.getAttribute("name");
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String value;
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if("string".equals(el.getTagName())){
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value=el.getTextContent();
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}else if("plurals".equals(el.getTagName())){
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value=el.getElementsByTagName("item").item(0).getTextContent();
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}else{
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System.out.println("Warning: unexpected tag "+name);
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continue;
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}
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ArrayList<String> placeholders=new ArrayList<>();
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Matcher matcher=fsPattern.matcher(value);
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while(matcher.find()){
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placeholders.add(matcher.group());
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}
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placeholdersInStrings.put(name, placeholders);
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}
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}
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for(File file:new File("mastodon/src/main/res").listFiles()){
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if(file.getName().startsWith("values-")){
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File stringsXml=new File(file, "strings.xml");
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if(stringsXml.exists()){
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processFile(stringsXml);
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}
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}
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}
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if(errorCount>0){
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System.err.println("Found "+errorCount+" problems in localized strings");
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System.exit(1);
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}
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}
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private static void processFile(File file) throws Exception{
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DocumentBuilderFactory factory=DocumentBuilderFactory.newInstance();
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factory.setNamespaceAware(false);
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DocumentBuilder builder=factory.newDocumentBuilder();
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Document doc;
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try(FileInputStream in=new FileInputStream(file)){
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doc=builder.parse(in);
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}
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NodeList list=doc.getDocumentElement().getChildNodes();
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for(int i=0;i<list.getLength();i++){
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if(list.item(i) instanceof Element el){
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String name=el.getAttribute("name");
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String value;
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if("string".equals(el.getTagName())){
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value=el.getTextContent();
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if(!verifyString(value, placeholdersInStrings.get(name))){
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errorCount++;
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System.out.println(file+": string "+name+" is missing placeholders");
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}
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}else if("plurals".equals(el.getTagName())){
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NodeList items=el.getElementsByTagName("item");
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for(int j=0;j<items.getLength();j++){
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Element item=(Element)items.item(j);
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value=item.getTextContent();
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String quantity=item.getAttribute("quantity");
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if(!verifyString(value, placeholdersInStrings.get(name))){
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// Some languages use zero/one/two for just these numbers so they may skip the placeholder
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// still make sure that there's no '%' characters to avoid crashes
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if(List.of("zero", "one", "two").contains(quantity) && !value.contains("%")){
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continue;
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}
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errorCount++;
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System.out.println(file+": string "+name+"["+quantity+"] is missing placeholders");
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}
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}
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}else{
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System.out.println("Warning: unexpected tag "+name);
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continue;
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}
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}
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}
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}
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private static boolean verifyString(String str, List<String> placeholders){
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for(String placeholder:placeholders){
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if(placeholder.equals("%,d")){
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// %,d and %d are interchangeable but %,d provides nicer formatting
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if(!str.contains(placeholder) && !str.contains("%d"))
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return false;
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}else if(!str.contains(placeholder)){
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return false;
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}
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}
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return true;
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}
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} |