Problems picking out bits of text with regular expressions. 2

[deadpool42]

I want to end up with an array containing each bit of text that's surrounded by <row> tags, but I can only get it to match the first one.

var results = /<row>(.+?)<\/row>/g;
var tableRows = results.exec('<row>word1</row><row>word2</row><row>word3</row>');
alert(tableRows.length);

 

[BillyRayPreachersSon]

RegExp aside, you could use "array.split('</row><row>');" and deal with the first and last elements as a special case.

Hope this helps,
Dan



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[tsuji]

[tt]var results = /<row>(.+?)<\/row>/g;
var s="<row>word1</row><row>word2</row><row>word3</row>";
var tableRows = s.match(results)
alert(tableRows.length);
if (tableRows) {
for (var i=0;i<tableRows.length);i++) {
alert(tableRows.replace(results,"$1");
}
}
[/tt]

 

[deadpool42]

Thanks for the tips, guys. I'll probably end up using one of those, but I'm still confused about why therer isn't a better way. Shouldn't the global flag match every word?

 

[tsuji]

[1] I had an obvious typo in my post.
[tt]for (var i=0;i<tableRows.lengt[highlight]h);[/highlight]i++) {[/tt]

[2] The global flag is just fine. The only problem is that methods are not intuitive. You have to read the fine print of the documentation.
regexp::exec method

http://msdn.microsoft.com/library/d...html/83092452-60cc-4218-b4ae-af9e3cb96c34.asp

string::match method

http://msdn.microsoft.com/library/d...html/eda9ad27-4f9b-4cb1-8345-a0ae85979ca0.asp

[3] If you want to stick to regexp::exec method, which I find no objection at all and that it may even be better, you have to loop until tableRows return null (here, the global flag still plays an important role.) Like this.
[tt]
var results = /<row>(.+?)<\/row>/g;
var tableRows;
do {
tableRows = results.exec('<row>word1</row><row>word2</row><row>word3</row>');
if (tableRows) {
alert(tableRows[1]); //index 1 contains the backreference
}
} while (tableRows)
[/tt]