checkstyle.py: Python 3 compatibility, part two.

Previous patch was tested only with single files arguments, thus
missing the usage of "os.path.walk()" (that was removed on 3.0).

Use "os.walk()" instead, that has been available since Python 2.3.

Change-Id: Ia290bebaa950466ac5f1d978f0a5e710a8e3da88
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5696
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

checkstyle.py: make it compatible with Python 3.x

* Change prints to be compatible with 2.x and 3.x.
* Use html.escape instead of cgi.escape on Python >= 3.8.
* Make integer division explicit.

Change-Id: Ib9b236816e8fa07741c02d0e79629c4aa0ed6676
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5603
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>
Reviewed-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

checkstyle: Update 80 columns rule to 100 as per coding guidelines

Change-Id: I17d8a74ec332a0073bd9d85ce23093b285a8e2d8
Reviewed-on: https://review.haiku-os.org/c/haiku/+/4875
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Tested-by: Commit checker robot <no-reply+buildbot@haiku-os.org>

CodingStyle checking tool directory:

- Don't crash when a [.svn] cache directory is missing
- Ignores the cache directories of the main VCS : bazaar, git, mercurial, svn

Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

Fixes #11532.

change html output to confirm to XHTML Strict

Several errors in the html output caused WebPositive to not render
the file completely.

Signed-off-by: Adrien Destugues <pulkomandy@pulkomandy.tk>

Fixes #12387.

checkstyle: add #! line, fix filemode.

Replace a few references to Subversion with Git.

There are a whole bunch more of these around, but these were the
ones I was confident replacing.

* Use os.path.walk to visit directories
* Use \w instead of [a-zA-Z0-9] in some regex's
* Add switch to the "space after control statement" rule
* Added pointer/reference style rule


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33921 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add multi file/directory support
* Refined some rules to not include the new-line
* Added 'windows line ending' rule
* Enhanced the html output, not an expert there though



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33889 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Style checker for the Haiku C++ coding guidelines
* Added an html report output with highlights and tooltips
* Still a few false positives and rules missing. Some regex could be reworked
* TODO: ignore some rules when in comments, multifile support



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33856 a95241bf-73f2-0310-859d-f6bbb57e9c96

checkstyle: add #! line, fix filemode.

Replace a few references to Subversion with Git.

There are a whole bunch more of these around, but these were the
ones I was confident replacing.

* Use os.path.walk to visit directories
* Use \w instead of [a-zA-Z0-9] in some regex's
* Add switch to the "space after control statement" rule
* Added pointer/reference style rule


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33921 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Add multi file/directory support
* Refined some rules to not include the new-line
* Added 'windows line ending' rule
* Enhanced the html output, not an expert there though



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33889 a95241bf-73f2-0310-859d-f6bbb57e9c96

* Style checker for the Haiku C++ coding guidelines
* Added an html report output with highlights and tooltips
* Still a few false positives and rules missing. Some regex could be reworked
* TODO: ignore some rules when in comments, multifile support



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33856 a95241bf-73f2-0310-859d-f6bbb57e9c96