Feature #4780: String#split with a block

• Status: Closed
• Assignee: matz (Yukihiro Matsumoto)
• Target version: -

[yimutang (Joey Zhou)]

Mentioned before, in another (rejected) issue thread: http://redmine.ruby-lang.org/issues/4615

There are a few methods, which return an array without a trailing block, or also can be iterated with a block.

Such as String#scan.

String#split has only one form:

str.split(pattern=$;, limit=0) -> array

Maybe add a iterative form, when with a block:

str.split(pattern=$;, limit=0) {|field| ... } -> str

If the string is very long, and I only need to play with the splitted string one by one, this will not create a useless expensive array.

Joey

[naruse (Yui NARUSE)]

• Status changed from Open to Assigned
• Assignee set to matz (Yukihiro Matsumoto)

[mame (Yusuke Endoh)]

• Target version set to 2.6

[naruse (Yui NARUSE)]

• Target version deleted (2.6)

[matz (Yukihiro Matsumoto)]

Accepted.

Matz.

[nobu (Nobuyoshi Nakada)]

• Description updated (diff)

[nobu (Nobuyoshi Nakada)]

• Status changed from Assigned to Closed

Applied in changeset trunk|r62763.

---

string.c: split with block

• string.c (rb_str_split_m): yield each split substrings if the
  block is given, instead of returing the array. [Feature #4780]