Topics

Tabs vs. Spaces

Advices

• Always use spaces in original files. The formatting is kept this way. In html/javascript this might generate an increase in the filesize but don't optimize for that.
• Use the convention to always convert tabs to 2 spaces that will allow a lot of levels of imbrication.

End Of Lines - EOL

Conventions

Depending on the Operating System the end of line (EOL) is encoded with different characters.

• windows (CR+LF)
• linux (LF)
• old mac (CR)

Parts - Characters

• CR - Carriage Return - \r or 0x0D or CHAR(13)
• LF - Line Feed - \n or 0x0A or CHAR(10)

Symbols

• \n might refer to \r\n in some cases - end of line for windows
• \n refers to just LF on linux

Advices

• Make a convention to use across your projects one specific type like the windows or linux convention
• Configure git with autocrlf = false: Intro to Git to disable automatic correction at commit/checkout time

Resources

• https://www.hanselman.com/blog/DeathToCarriageReturnsAndLinefeeds.aspx
• https://en.wikipedia.org/wiki/Newline

End Of Files - EOF

Encoding

See https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/

• UTF8
• Ascii

Code Formatters

• Java
• Xml

Code Validators

• Java
• Xml

Resources

• https://eclipsesource.com/blogs/2013/07/09/invisible-chaos-mastering-white-spaces-in-eclipse/
• ant tasks: https://ant.apache.org/manual/Tasks/fixcrlf.html
• http://code.revelc.net/formatter-maven-plugin/examples.html#Custom_Configuration_File
• configure checkstyle to reject specific EOLs
  • https://github.com/checkstyle/checkstyle/issues/893
  • https://stackoverflow.com/questions/15003871/how-to-make-maven-checking-the-source-end-of-line
• eclipse source formatting - https://www.ralfebert.de/archive/java/source_formatting/
• http://www.jillesvangurp.com/2015/01/29/enforcing-code-conventions-in-java/
• https://stackoverflow.com/questions/1955514/best-practices-for-code-formatting-on-large-projects
• eclipse checkstyle integration - http://eclipse-cs.sourceforge.net/#!/
• convert from checkstyle to eclipse formatter: Doesn't work for now. https://stackoverflow.com/questions/8327498/converting-an-eclipse-formatter-file-to-a-checkstyle-file
• checkstyle config https://stackoverflow.com/questions/34591512/configure-automatically-tab-character-for-eclipse-formatter-from-checkstyle-conf
• config of checkstyle and java formatter https://github.com/sevntu-checkstyle/sevntu.checkstyle/wiki/Java-code-Formater-and-Checkstyle-configuration-for-development
• sample sortpom - https://github.com/revelc/formatter-maven-plugin/blob/master/pom.xml
• http://www.jillesvangurp.com/2015/01/29/enforcing-code-conventions-in-java/
• eclipse code formatter for intelij https://blog.jetbrains.com/idea/2014/01/intellij-idea-13-importing-code-formatter-settings-from-eclipse/
• https://stackoverflow.com/questions/12872283/using-checkstyle-to-format-code
• http://wiki.pentaho.com/display/PEOpen/Code+Formatting+and+CheckStyle
• http://maven.apache.org/plugins/maven-checkstyle-plugin/plugin-info.html
• compatible eclipse cleanup with checkstyle - https://stackoverflow.com/questions/21211586/is-there-an-eclipse-clean-up-profile-that-matches-the-checkstyle-format-rules
• https://stackoverflow.com/questions/5003830/automatic-eol-conversion-in-eclipse
• https://github.com/google/styleguide
• sonar - http://centrumsystems.com.au/coding-standards-harmony/
• https://stackoverflow.com/questions/21211586/is-there-an-eclipse-clean-up-profile-that-matches-the-checkstyle-format-rules
• google java guide - https://google.github.io/styleguide/javaguide.html
• maven-checkstyle-plugin-2.17 depends on checkstyle-6.11.2 with default google_checks.xml https://raw.githubusercontent.com/checkstyle/checkstyle/checkstyle-6.11.2/src/main/resources/google_checks.xml