regex - Regular expression for "parts joined by a delimiter"? -

regex - Regular expression for "parts joined by a delimiter"? -

e.g. want test string comma-separated list, no empty elements. (that means string doesn't begin or end comma.)

procedurally, could/would (e.g. javascript):

function isvalid(str) { homecoming str.split(',').every(function (substr) { homecoming substr.length > 0; }); }

can accomplish regex? i'm struggling doing so, , maybe it's because i'm not experienced features lookahead.

thanks!

i may have actually.

/^[^,]+(,[^,]+)*$/

that's saying: start 1 or more non-commas, , if there's else, must comma followed 1 or more non-commas, repeated.

that seems work in cases i've tested:

// should pass: x xy x,y x,y,z // should fail: , x, ,x ,x, x,y, ,x,y ,x,y,

but i'm not sure if i'm missing cases.

regex