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string.c: consistent paragraph mode with IO

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* string.c (rb_str_enumerate_lines): in paragraph mode, do not
  include newlines which separate paragraphs, so that it will be
  consistent with IO#each_line.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57184 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-12-25 23:50:09 +00:00
parent 110bfb7152
commit 091f99b4b9
2 changed files with 13 additions and 14 deletions
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15
string.c
View File

@ -7511,18 +7511,17 @@ rb_str_enumerate_lines(int argc, VALUE *argv, VALUE str, int wantarray)
subptr = adjusted;
continue;
}
subend = hit + rslen;
subend = hit += rslen;
if (paragraph_mode) {
while (subend < pend) {
while (hit < pend) {
int n;
if (rb_enc_ascget(subend, pend, &n, enc) != '\r')
if (rb_enc_ascget(hit, pend, &n, enc) != '\r')
n = 0;
if (!rb_enc_is_newline(subend + n, pend, enc)) break;
subend += n;
subend += rb_enc_mbclen(subend, pend, enc);
if (!rb_enc_is_newline(hit + n, pend, enc)) break;
hit += n;
hit += rb_enc_mbclen(hit, pend, enc);
}
}
hit = subend;
if (chomp) {
if (rsnewline) {
subend = chomp_newline(subptr, subend, enc);
@ -7591,7 +7590,7 @@ rb_str_enumerate_lines(int argc, VALUE *argv, VALUE str, int wantarray)
* "o\nworl"
* "d"
* Example three
* "hello\n\n\n"
* "hello\n\n"
* "world"
*/

12
test/ruby/test_string.rb
View File

@ -661,8 +661,8 @@ CODE
res=[]
S("hello\n\n\nworld").lines(S('')).each {|x| res << x}
assert_equal(S("hello\n\n\n"), res[0])
assert_equal(S("world"), res[1])
assert_equal(S("hello\n\n"), res[0])
assert_equal(S("world"), res[1])
$/ = "!"
res=[]
@ -782,8 +782,8 @@ CODE
res=[]
S("hello\n\n\nworld").each_line(S('')) {|x| res << x}
assert_equal(S("hello\n\n\n"), res[0])
assert_equal(S("world"), res[1])
assert_equal(S("hello\n\n"), res[0])
assert_equal(S("world"), res[1])
$/ = "!"
@ -824,8 +824,8 @@ CODE
res = []
S("hello\n\n\nworld").each_line(S(''), chomp: true) {|x| res << x}
assert_equal(S("hello\n\n"), res[0])
assert_equal(S("world"), res[1])
assert_equal(S("hello\n"), res[0])
assert_equal(S("world"), res[1])
res = []
S("hello!world").each_line(S('!'), chomp: true) {|x| res << x}