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* string.c (rb_str_lines): new method to split a string into lines.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@10976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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matz 2006-09-21 00:43:16 +00:00
parent 3b9c221378
commit e79002a022
2 changed files with 41 additions and 0 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Thu Sep 21 09:38:12 2006 Yukihiro Matsumoto <matz@ruby-lang.org>
* string.c (rb_str_lines): new method to split a string into lines.
Wed Sep 20 23:17:41 2006 Nobuyoshi Nakada <nobu@ruby-lang.org>
* common.mk (pre-install-doc): create data directory before install.

37
string.c
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@ -3532,6 +3532,42 @@ rb_str_split(VALUE str, const char *sep0)
return rb_str_split_m(1, &sep, str);
}
/*
* call-seq:
* str.lines => anArray
*
* Divides <i>str</i> into lines terminated by newlines.
*
* "foo\nbar\n".lines #=> ["foo\n", "bar\n"]
* "foo\nb ar".lines #=> ["foo\n", "b ar"]
*/
static VALUE
rb_str_lines(VALUE str)
{
VALUE ary = rb_ary_new();
char *p = RSTRING_PTR(str);
char *pend = p + RSTRING_LEN(str);
char *s = p;
VALUE line;
while (p < pend) {
if (*p == '\n') {
p++;
line = rb_str_new(s, p-s);
rb_ary_push(ary, line);
s = p;
}
p++;
}
if (p == pend && s < p) {
line = rb_str_new(s, p-s);
rb_ary_push(ary, line);
}
return ary;
}
/*
* call-seq:
* str.each(separator=$/) {|substr| block } => str
@ -4796,6 +4832,7 @@ Init_String(void)
rb_define_method(rb_cString, "hex", rb_str_hex, 0);
rb_define_method(rb_cString, "oct", rb_str_oct, 0);
rb_define_method(rb_cString, "split", rb_str_split_m, -1);
rb_define_method(rb_cString, "lines", rb_str_lines, 0);
rb_define_method(rb_cString, "reverse", rb_str_reverse, 0);
rb_define_method(rb_cString, "reverse!", rb_str_reverse_bang, 0);
rb_define_method(rb_cString, "concat", rb_str_concat, 1);