[ruby-dev:52018] [Ruby master Feature#19193] drop DOS TEXT mode support

Issue #19193 has been updated by nobu (Nobuyoshi Nakada). Status changed from Open to Assigned Assignee set to usa (Usaku NAKAMURA) YO4 (Yoshinao Muramatsu) wrote: I guess you mean those apps can read without CR, but is it the default to write with LF newlines? This is not related to reading, but writing. The most important reason we are keeping "text mode" at reading is backward interoperability for old files. How do you think, @usa? Are many of text files using LF newlines nowadays on Windows? ---------------------------------------- Feature #19193: drop DOS TEXT mode support https://bugs.ruby-lang.org/issues/19193#change-100563 * Author: YO4 (Yoshinao Muramatsu) * Status: Assigned * Priority: Normal * Assignee: usa (Usaku NAKAMURA) ---------------------------------------- On Windows platform, ```File.open(path, "r")``` returns an object different from "rt" and "rb". I call that DOS TEXT mode here. DOS TEXT mode does * crlf conversion * 0x1a treated EOF charactor on read and others (see Bug #19192). But DOS TEXT mode is almost unnecessary today and it seems to introduce lot of code complexities. Now there is less need for dos text mode * Microsoft's most apps works without CRLF newline. * Creating a crlf text file today should be explicit. (but that is default mode on windows now) * Interpreting EOF charactor can cause trouble. I think it's time to consider dropping DOS TEXT mode. What challenges are there and what preparation is needed? -- https://bugs.ruby-lang.org/