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https://issues.apache.org/jira/browse/CODEC-127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13085261#comment-13085261
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Gary D. Gregory commented on CODEC-127:
---------------------------------------
Arg:
{noformat}
C:\svn\org\apache\commons\trunks-proper\codec>perl -MWild -ne "$.=1 if $s ne
$ARGV;print qq($ARGV:$. $_) if m/\P{ASCII}/;$s=$ARGV;" */*.java
Can't open */*.java: Invalid argument.
{noformat}
> Non-ascii characters in source files
> ------------------------------------
>
> Key: CODEC-127
> URL: https://issues.apache.org/jira/browse/CODEC-127
> Project: Commons Codec
> Issue Type: Bug
> Reporter: Sebb
>
> Some of the test cases include characters in a native encoding (possibly
> UTF-8), rather than using Unicode escapes.
> This can cause a problem for IDEs if they don't know the encoding (e.g. cause
> compilation errors, which is how I found the issue), and possibly some
> transformations may corrupt the contents, e.g. fixing EOL.
> I think we should have a rule of using Unicode escapes for all such non-ascii
> characters.
> It's particularly important for non-ISO-8859-1 characters.
> Some example classes with non-ascii characters:
> {code}
> binary\Base64Test.java:96 byte[] decode =
> b64.decode("SGVsbG{´┐¢´┐¢´┐¢´┐¢´┐¢´┐¢}8gV29ybGQ=");
> language\ColognePhoneticTest.java:110 {"m├Ânchengladbach",
> "664645214"},
> language\ColognePhoneticTest.java:130 String[][] data =
> {{"bergisch-gladbach", "174845214"}, {"M├╝ller-L├╝denscheidt", "65752682"}};
> language\ColognePhoneticTest.java:137 {"Meyer", "M├╝ller"},
> language\ColognePhoneticTest.java:143 {"ganz", "Gänse"},
> language\DoubleMetaphoneTest.java:1222
> this.getDoubleMetaphone().isDoubleMetaphoneEqual("´┐¢", "S");
> language\DoubleMetaphoneTest.java:1227
> this.getDoubleMetaphone().isDoubleMetaphoneEqual("´┐¢", "N");
> language\SoundexTest.java:367 if (Character.isLetter('´┐¢')) {
> language\SoundexTest.java:369 Assert.assertEquals("´┐¢000",
> this.getSoundexEncoder().encode("´┐¢"));
> language\SoundexTest.java:375 Assert.assertEquals("",
> this.getSoundexEncoder().encode("´┐¢"));
> language\SoundexTest.java:387 if (Character.isLetter('´┐¢')) {
> language\SoundexTest.java:389 Assert.assertEquals("´┐¢000",
> this.getSoundexEncoder().encode("´┐¢"));
> language\SoundexTest.java:395 Assert.assertEquals("",
> this.getSoundexEncoder().encode("´┐¢"));
> {code}
> The characters are probably not correct above, because I used a crude perl
> script to find them:
> {code}
> perl -ne "$.=1 if $s ne $ARGV;print qq($ARGV:$. $_) if
> m/\P{ASCII}/;$s=$ARGV;" */*.java
> {code}
> language\SoundexTest.java:367 in particular is incorrect, because it's
> supposed to be a single character.
> Now one might think that native2ascii -encoding UTF-8 would fix that, but it
> gives:
> if (Character.isLetter('\ufffd'))
> which is an "unknown" character.
> Similarly for binary\Base64Test.java:96.
> It's not all that clear what the Unicode escapes should be in these cases,
> but probably not the unknown character.
> [Possibly the characters got mangled at some point, or maybe they have always
> been wrong]
> The ColognePhoneticTest.java cases are less serious, as the characters are
> valid ISO-8859-1 (accented German), but given that the rest of the file uses
> unicode escaps, I think they should be changed too (but add comments to say
> what they are, e.g. o-umlaut, u-umlaut)
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