Css Lex (CSS2.1 Appendix G)

[Brett Foster]

http://www.w3.org/TR/CSS21/grammar.html

From appendix G we find these two lines:
\/\*[^*]*\*+([^/*][^*]*\*+)*\/ /* ignore comments */
{s}+\/\*[^*]*\*+([^/*][^*]*\*+)*\/ {unput(' '); /*replace by space*/}

What is the purpose of the second regular expression?

Brett

[Lauri Raittila]

in comp.infosystems.www.authoring.stylesheets, Brett Foster wrote:

http://www.w3.org/TR/CSS21/grammar.html

From appendix G we find these two lines:
\/\*[^*]*\*+([^/*][^*]*\*+)*\/ /* ignore comments */
{s}+\/\*[^*]*\*+([^/*][^*]*\*+)*\/ {unput(' '); /*replace by space*/} What is the purpose of the second regular expression?

First one finds comments in code when there is no spaces:
foo {/*comment*/color:red}
-> foo {color:red}
Second one collapses spaces as well:
foo /* comment */ {color:red}
-> foo {color:red}

{s} seems to be notation for whitespace in notation.

--
Lauri Raittila <http://www.iki.fi/lr> <http://www.iki.fi/zwak/fonts>
Utrecht, NL.
Support me, buy Opera:
https://secure.bmtmicro.com/opera/bu...tml?AID=882173