Mirrors/chatmail-core
1
0
Fork 0
mirror of https://github.com/chatmail/core.git synced 2026-04-17 21:46:35 +03:00
Code Issues Packages Projects Releases Wiki Activity

Copy comment for dc_encode_headers_words from C code

Browse Source
This commit is contained in:
Dmitry Bogatov
2019-09-10 22:49:53 +00:00
parent 3ab0d74af2
commit e7b198849d
1 changed files with 14 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
src/dc_strencode.rs
View File

@@ -12,6 +12,20 @@ use crate::dc_tools::*;
use crate::types::*; use crate::types::*;
use crate::x::*; use crate::x::*;
/**
* Encode non-ascii-strings as `=?UTF-8?Q?Bj=c3=b6rn_Petersen?=`.
* Belongs to RFC 2047: https://tools.ietf.org/html/rfc2047
*
* We do not fold at position 72; this would result in empty words as `=?utf-8?Q??=` which are correct,
* but cannot be displayed by some mail programs (eg. Android Stock Mail).
* however, this is not needed, as long as _one_ word is not longer than 72 characters.
* _if_ it is, the display may get weird. This affects the subject only.
* the best solution wor all this would be if libetpan encodes the line as only libetpan knowns when a header line is full.
*
* @param to_encode Null-terminated UTF-8-string to encode.
* @return Returns the encoded string which must be free()'d when no longed needed.
* On errors, NULL is returned.
*/
pub unsafe fn dc_encode_header_words(to_encode: *const libc::c_char) -> *mut libc::c_char { pub unsafe fn dc_encode_header_words(to_encode: *const libc::c_char) -> *mut libc::c_char {
let mut ok_to_continue = true; let mut ok_to_continue = true;
let mut ret_str: *mut libc::c_char = ptr::null_mut(); let mut ret_str: *mut libc::c_char = ptr::null_mut();