On Sep 15, 11:19 pm, Yakov <[email protected]> wrote:
> > name: "list",
> > match: "^(?:[\\*#;:]+)",
> > lookaheadRegExp: /^(?:(?:(\*)|(#)|(;)|(:))+)/mg,
> > termRegExp: /(\n)/mg,
>
> Ok, here we have a "name" property with an obvious meaning; the
> "match" one means somewhat like "the beginning of the inside-list
> text" and the "termRegExp" one means "the end of the inside-list
> text", correct? On the other hand, I'm not sure about this in the
> following sense: if one writes smth like
match: "^(?:[\\*#;:]+)",
first off all .. * within a regExp means "repeat 0 or unlimited times,
as many times as possible"
because we want it, to be the char * we need to excape it. This is
done in regExp with \* -> char *.
But ... the whole stuff is inside a javaScript string "..." a single \
is used as an escape character in js string ( you can test this in
your browsers console.)
eg:
var x = "\"";
will print a single ".
so to create a * char for a regExp inside a js string you need to do
match: "\\*"
because otherwise it has a different meaning .. :)
match: "^(?:[\\*#;:]+)",
^ // Assert position at the beginning of a line (at
beginning of the string or after a line break character)
(?: // Match the regular expression below
[\\*#;:] // Match a single character present in the list
below
// A * character
// One of the characters “#;:”
+ // Between one and unlimited times, as many times
as possible, giving back as needed (greedy)
)
The match is __only__ used to identify the start of a list. For more
info about regExp, I recomend [1] regular-expressions.info (the site).
The above explanation is created by regexbuddy sw [2]
have fun!
mario
[1] http://www.regular-expressions.info/tutorial.html
(Disclaimer: I am not associated with this company. But there "regEx
buddy"[2] is a damn good programm, to test and create regExp's)
[2] http://www.regular-expressions.info/regexbuddy.html
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