regexIssueTracker not working in CruiseControl.net - regex

I am trying to get an issueUrlBuilder to work in my CruiseControl.NET config, and cannot figure out why they aren't working.
The first one I tried is this:
<cb:define name="issueTracker">
<issueUrlBuilder type="regexIssueTracker">
<find>^.*Issue (\d*).|\n*$</find>
<replace>https://issuetracker/ViewIssue.aspx?ID=$1</replace>
</issueUrlBuilder>
</cb:define>
Then, I reference it in the sourceControl block:
<sourcecontrol type="vaultplugin">
...
<issueTracker/>
</sourcecontrol>
My checkin comments look like this:
[Issue 1234] This is a test comment
I cannot find anywhere in the build reports/logs/etc. where that issue link is converted to a link. Is my regex wrong?
I've also tried the default issueUrlBuilder:
<cb:define name="issueTracker">
<issueUrlBuilder type="defaultIssueTracker">
<url>https://issuetracker/ViewIssue.aspx?ID={0}</url>
</issueUrlBuilder>
</cb:define>
Again, same comments and no links anywhere.
Anyone have any ideas.

It looks like you're trying to match a potentially multiline comment by using .|\n instead of just ., which doesn't match newlines by default. Your first problem is that | has the lowest associativity of all regex constructs, so it's dividing your whole regex into the alternatives ^.*Issue (\d*). or \n*$. You would need to enclose the alternation in a group: (?:.|\n)*.
Another potential problem is that the lines might be separated by \r\n (carriage-return plus linefeed) instead of just \n. If CCNET uses the .NET regex engine under the hood, that won't be a problem because the dot matches \r. But that's not true of all flavors, and anyway, there's always a better way to match anything including newlines than (?:.|\n)*. I suggest you try
<find>^.*Issue (\d*)(?s:.*)$</find>
or
<find>(?s)^.*Issue (\d*).*$</find>
(?s) and (?s:...) are inline modifiers which allow the dot to match line separator characters.
EDIT: It looks like this is a known bug in CCNET. If the inline modifier doesn't work, try replacing . with [\s\S], as you would in a JavaScript regex. Example:
<find>^.*Issue (\d*)[\s\S]*$</find>

Related

Vim S&R to remove number from end of InstallShield file

I've got a practical application for a vim regex where I'd like to remove numbers from the end of file location links. For example, if the developer is sloppy and just adds files and doesn't reuse file locations, you'll end up with something awful like this:
PATH_TO_MY_FILES&gt
PATH_TO_MY_FILES1&gt
...
PATH_TO_MY_FILES22&gt
PATH_TO_MY_FILES_ELSEWHERE&gt
PATH_TO_MY_FILES_ELSEWHERE1&gt
...
So all I want to do is to S&R and replace PATH_TO_MY_FILES*\d+ with PATH_TO_MY_FILES* using regex. Obviously I am not doing it quite right, so I was hoping someone here could not spoon feed the answer necessarily, but throw a regex buzzword my way to get me on track.
Here's what I have tried:
:%s\(PATH_TO_MY_FILES\w*\)\(\d+\)&gt:gc
But this doesn't work, i.e. if I just do a vim search on that, it doesn't find anything. However, if I use this:
:%s\(PATH_TO_MY_FILES\w*\)\(\d\)&gt:gc
It will match the string, but the grouping is off, as expected. For example, the string PATH_TO_MY_FILES22 will be grouped as (PATH_TO_MY_FILES2)(2), presumably because the \d only matches the 2, and the \w match includes the first 2.
Question 1: Why doesn't \d+ work?
If I go ahead and use the second string (which is wrong), Vim appears to find a match (even though the grouping is wrong), but then does the replacement incorrectly.
For example, given that we know the \d will only match the last number in the string, I would expect PATH_TO_MY_FILES22&gt to get replaced with PATH_TO_MY_FILES2&gt. However, instead it replaces it with this:
PATH_TO_MY_FILES2PATH_TO_MY_FILES22&gtgt
So basically, it looks like it finds PATH_TO_MY_FILES22&gt, but then replaces only the & with group 1, which is PATH_TO_MY_FILES2.
I tried another regex at Regexr.com to see how it would interpret my grouping, and it looked correct, but maybe a hack around my lack of regex understanding:
(PATH_TO_\D*)(\d*)&gt
This correctly broke my target string into the PATH part and the entire number, so I was happy. But then when I used this in Vim, it found the match, but still replaced only the &.
Question 2: Why is Vim only replacing the &?
Answer 1:
You need to escape the + or it will be taken literally. For example \d\+ works correctly.
Answer 2:
An unescaped & in the replacement portion of a substitution means "the entire matched text". You need to escape it if you want a literal ampersand.

Find / Replace functionality that allows for boundary replacements instead of expressions

Apologies in advance for the confusing title. My issue is as follows, I have the following text in about 600 files:
$_REQUEST['FOO']
I would like to replace it with the following:
$this->input->post('FOO')
To clarify, I am matching against the following:
$_REQUEST any number of A-Za-z\d followed by a ]
and replacing it with:
$this->input->post( the alphanumeric word from above followed by a )
Or in general:
Anchor token TEXT TO KEEP end anchor token
This differs from standard find/replace as I want to retain text inside of two word boundaries.
Is this functionality present in any text editors (Eclipse,np++,etc). Or am I going to need to write some type of program to parse these 600 files to make the replacement?
s/\$__REQUEST\[(.*?)]/$this->input->post(\1)/
The .*? will match everything from [ to the first ] rather than the last although it's unlikely that it will matter in this case.
By the way the PHP superglobal is $_REQUEST rather than $__REQUEST
You can do this in Notepad++ using regular expressions. Replace
\$_REQUEST\['([^']*)'\]
with
$this->input->post('$1')
If you ever have double-quotes too, you can do use a more complex expression to handle both cases, though I'm not sure Notepad++ supports backreferences; replace
\$_REQUEST\[(['"])(.*?)\1\]
with
$this->input->post($1$2$1)
Note that I've reverted to using #ExplosionPills' suggested (.*?) hereā€”it may be better, actually.

Replacing char in a String with Regular Expression

I got a string like this:
PREFIX-('STRING WITH SPACES TO REPLACE')
and i need this:
PREFIX-('STRING_WITH_SPACES_TO_REPLACE')
I'm using Notepad++ for the Regex Search and Replace, but i'm shure every other Editor capable of regex replacements can do it to.
I'm using:
PREFIX-\('(.*)(\s)(.*)'\)
for search and
PREFIX-('\1_\3')
for replace
but that replaces only one space from the string.
The regex search feature in Notepad++ is very, very weak. The only way I can see to do this in NPP is to manually select the part of the text you want to work on, then do a standard find/replace with the In selection box checked.
Alternatively, you can run the document through an external script, or you can get a better editor. EditPad Pro has the best regex support I've ever seen in an editor. It's not free, but it's worth paying for. In EPP all I had to do was this:
search: ((?:PREFIX-\('|\G)[^\s']+)\s+
replace: $1_
EDIT: \G matches the position where the previous match ended, or the beginning of the input if there was no previous match. In other words, the first time you apply the regex, \G acts like \A. You can prevent that by adding a negative lookahead, like so:
((?:PREFIX-\('|(?!\A)\G)[^\s']+)\s+
If you want to prevent a match at the very beginning of the text no matter what it starts with, you can move the lookahead outside the group:
(?!\A)((?:PREFIX-\('|\G)[^\s']+)\s+
And, just in case you were wondering, a lookbehind will work just as well as a lookahead:
((?:PREFIX-\('|(?<!\A)\G)[^\s']+)\s+
You have to keep matching from the beggining of the string untill you can match no more.
find /(PREFIX-\('[^\s']*)\s([^']*'\))/
replace $1_$2
like: while (/(PREFIX-\('[^\s']*)\s([^']*'\))/$1_$2/) {}
How about using Replace all for about 20 times? Or until you're sure no string contains more spaces
Due to nature of regex, it's not possible to do this in one step by normal regular expression.
But if I be in your place, I do such replaces in several steps:
find such patterns and mark them with special character
(Like replacing STRING WITH SPACES TO REPLACE with #STRING WITH SPACES TO REPLACE#
Replace #([^#\s]*)\s to #\1_ server times.
Remove markers!
I studied a little the regex tool in Notepad++ because I didn't know their possibilities.
I conclude that they aren't powerful enough to do what you want.
Your are obliged to learn and use a programming language having a real regex capability. There are a number of them. Personnaly, I use Python. It would take 1 mn to do what you want with it
You'd have to run the replace several times for each space but this regex will work
/(?<=PREFIX-\(')([^\s]+)\s+/g
Replace with
\1_ or $1_
See it working at http://refiddle.com/10z

Adding "/index.html" to paths in Vim

I'm trying to append "/index.html" to some folder paths in a list like this:
path/one/
/another/index.html
other/file/index.html
path/number/two
this/is/the/third/path/
path/five
sixth/path/goes/here/
Obviously the text only needs to be added where it does not exist yet. I could achieve some good results with (vim command):
:%s/^\([^.]*\)$/\1\/index.html/
The only problem is that after running this command, some lines like the 1st, 5th and 7th in the previous example end up with duplicated slashes. That's easy to solve too, all I have to do is search for duplicates and replace with a single slashes.
But the question is:
Isn't there a better way to achieve the correct result at once?
I'm a Vim beginner, and not a regex master also. Any tips are really appreciated!
Thanks!
So very close :)
Just add an optional slash to the end of the regex:
\/\?
Then you need to change the rest of the pattern to a non-greedy match so that it ignores a trailing slash. The syntax for a non-greedy match in vim (replacing the *) is:
\{-}
So we end up with:
:%s/^\([^\.]\{-}\)\/\?$/\1\/index.html/
(Doesn't hurt to be safe and escape the period.)
Vim's regex supports the ability to match a bit of text foo if it does or doesn't precedes or follows some other text bar without matching bar, and this is exactly the sort of thing you're looking for. Here you want to match the end of line with an optional /, but only if the / isn't followed by index.html, and then replace it with /index.html. A quick look at Vim's help tells me \#<! is exactly what to use. It tells Vim that the preceding atom must be in the text but not in what's matched. With a little experimentation, I get
:%s;/\?\(index\.html\)\#<!$;/index.html;
I use ; to delimit the parts of the :s command so that I don't have to escape any / in the regex or replacement expression. In this particular situation, it's not a big deal though.
The / is optional, and we say so with \?.
We need to group index.html together because otherwise our special \#<! would only affect the l otherwise.

How to search (using regex) for a regex literal in text?

I just stumbled on a case where I had to remove quotes surrounding a specific regex pattern in a file, and the immediate conclusion I came to was to use vim's search and replace util and just escape each special character in the original and replacement patterns.
This worked (after a little tinkering), but it left me wondering if there is a better way to do these sorts of things.
The original regex (quoted): '/^\//' to be replaced with /^\//
And the search/replace pattern I used:
s/'\/\^\\\/\/'/\/\^\\\/\//g
Thanks!
You can use almost any character as the regex delimiter. This will save you from having to escape forward slashes. You can also use groups to extract the regex and avoid re-typing it. For example, try this:
:s#'\(\\^\\//\)'#\1#
I do not know if this will work for your case, because the example you listed and the regex you gave do not match up. (The regex you listed will match '/^\//', not '\^\//'. Mine will match the latter. Adjust as necessary.)
Could you avoid using regex entirely by using a nice simple string search and replace?
Please check whether this works for you - define the line number before this substitute-expression or place the cursor onto it:
:s:'\(.*\)':\1:
I used vim 7.1 for this. Of course, you can visually mark an area before (onto which this expression shall be executed (use "v" or "V" and move the cursor accordingly)).