Which programming languages are regular? [closed]

Which programming languages are regular? [closed]

References

Reference NO 1

http://en.wikipedia.org/wiki/Regular_language

Reference NO 2

http://stackoverflow.com/questions/15204299/which-programming-languages-are-regular

Reference NO 3

http://dlang.org/regular-expression.html

Reference NO 4

http://golang.org/pkg/regexp/

Reference NO 5

http://coding.smashingmagazine.com/2009/05/06/introduction-to-advanced-regular-expressions/

Reference NO 6

http://www.cs.ucr.edu/~jiang/cs215/tao-new.pdf

Reference NO 7

http://www.regular-expressions.info/

Reference NO 8

http://www.chemie.fu-berlin.de/chemnet/use/info/gawk/gawk_5.html