Regular exp to match string from beginning until certain char is met

Regular exp to match string from beginning until certain char is met

References

Reference NO 1

http://stackoverflow.com/questions/15202865/regular-exp-to-match-string-from-beginning-until-certain-char-is-met

Reference NO 2

http://stackoverflow.com/questions/2013124/regex-matching-up-to-the-first-occurrence-of-a-character

Reference NO 3

https://developer.gnome.org/glib/2.37/glib-regex-syntax.html

Reference NO 4

http://www.postgresql.org/docs/9.0/static/functions-matching.html

Reference NO 5

http://sitescope.tellurian.net/SiteScope/docs/regexp.htm

Reference NO 6

http://www.autohotkey.com/docs/misc/RegEx-QuickRef.htm

Reference NO 7

http://work.lauralemay.com/samples/perl.html

Reference NO 8

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