StackOverflow2013

Note that there are some explanatory texts on larger screens.

plurals

POHard time with escape character
primarykey
Id
3711529
data
AcceptedAnswerId
3711994
AnswerCount
3
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2010-09-14T17:51:14.603
FavoriteCount
0
LastActivityDate
2010-09-14T21:30:44.780
LastEditDate
2010-09-14T18:04:36.290
LastEditorUserId
103154
OwnerUserId
447632
ParentId
0
PostTypeId
1
Score
1
ViewCount
1663
LastEditorDisplayName
text
Body
I need to strip out a few invalid characters from a string and wrote the following code part of a StringUtil library: <pre><code>public static String removeBlockedCharacters(String data) { if (data==null) { return data; } return data.replaceAll("(?i)[<|>|\u003C|\u003E]", ""); } </code></pre> I have a test file illegalCharacter.txt with one line in it: <pre><code>hello \u003c here < and > there </code></pre> I run the following unit test: <pre><code>@Test public void testBlockedCharactersRemoval() throws IOException{ checkEquals(StringUtil.removeBlockedCharacters("a c\u003e\u003E\u003c\u003C"), "a b c"); log.info("Procesing from string directly: " + StringUtil.removeBlockedCharacters("hello \u003c here < and > there")); log.info("Procesing from file to string: " + StringUtil.removeBlockedCharacters(FileUtils.readFileToString(new File("src/test/resources/illegalCharacters.txt")))); } </code></pre> I get: <pre><code>INFO - 2010-09-14 13:37:36,111 - TestStringUtil.testBlockedCharactersRemoval(36) | Procesing from string directly: hello here and there INFO - 2010-09-14 13:37:36,126 - TestStringUtil.testBlockedCharactersRemoval(37) | Procesing from file to string: hello \u003c here and there </code></pre> I am VERY confused: as you can see, the code properly strips out the '<', '>', and '\u003c' if I pass a string containing these values but it fails to strip out '\u003c' if I read from a file containing the same string. My questions, so that I stop loosing hair over it, are: <ol> <li>Why do I get this behavior?</li> <li>How can I change my code to properly strip \u003c in all occasions?</li> </ol> Thanks
Tags
<java><regex><escaping><character>
Title
Hard time with escape character
singulars
PostAcceptedAnswerId
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
PostParentId
1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USaxtavt
UserOwnerUserId
1. USdouble07
plurals
PostLinksPostIdRelatedPostId
1. This table or related slice is empty.
PostLinksRelatedPostIdPostId
1. This table or related slice is empty.
PostsAcceptedAnswerId
1. This table or related slice is empty.
PostsParentIdCreationDate
1. PO
 singulars
 PostTypePostTypeId
 PTAnswer
2. PO
 singulars
 PostTypePostTypeId
 PTAnswer
3. PO
 singulars
 PostTypePostTypeId
 PTAnswer
VotesPostIdCreationDate
1. VO
 singulars
 PostPostId
 POHard time with escape character
 UserUserId
 This table or related slice is empty.
 VoteTypeVoteTypeId
 VTUpMod
CommentsPostId
1. This table or related slice is empty.

Querying!

Guidance

A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.