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2019-10-08email: Override invalid charset more strongly.Arun Isaac
* email/email.scm (post-process-content-type): Use alist-combine to override charset more strongly than just appending to the alist. * tests/email.scm ("tolerate invalid charset"): Update test.
2019-10-08email: Introduce alist union utility.Arun Isaac
* email/utils.scm (alist-combine): New function. (alist-delete*): Delete function. * email/email.scm (add-default-headers, add-default-mime-entity-headers): Use alist-combine.
2019-10-08email: Deduplicate post processing of header fields.Arun Isaac
* email/email.scm (post-process-fields): New function. (parse-mime-entity, decode-body): Invoke post-process-fields.
2019-10-02email: Tolerate decoding errors in body.Arun Isaac
* email/email.scm (decode-body): Tolerate decoding errors in the body using the substitute conversion strategy. * tests/email.scm ("tolerate decoding errors in body"): New test.
2019-10-01email: Tolerate invalid charset.Arun Isaac
* email/email.scm (post-process-content-type): If charset is invalid, assume default UTF-8 as charset. * tests/email.scm ("tolerate invalid charset"): New test. Reported-by: Ricardo Wurmus <rekado@elephly.net>
2019-09-28email: Tolerate decoding errors in MIME encoded words.Arun Isaac
* email/email.scm (decode-mime-encoded-word): Tolerate decoding errors in MIME encoded words using the substitute conversion strategy. * tests/email.scm ("tolerate decoding errors in MIME encoded words"): New test. Reported-by: Christopher Baines <mail@cbaines.net>
2019-09-28email: Remove duplicate unbracketed-angle-addr definition.Arun Isaac
* email/email.scm (unbracketed-angle-addr): Delete duplicate definition.
2019-09-23email: Update mbox->emails docstring.Arun Isaac
The earlier docstring was one meant for read-next-email-in-mbox. * email/email.scm (mbox->emails): Update docstring.
2019-09-23email: Add read-next-email-in-mbox docstring.Arun Isaac
* email/email.scm (read-next-email-in-mbox): Add docstring.
2019-09-23email: Tolerate non-ASCII non-UTF-8 characters in headers.Arun Isaac
* email/email.scm (email->headers+body): If non-ASCII non-UTF-8 characters occur in the headers, do not raise a decoding error. Work around using the substitute conversion strategy. * tests/email.scm ("tolerate non-ASCII characters in headers"): Rename to "decode utf-8 characters in headers". ("tolerate non-ascii non-utf-8 characters in headers"): New test. Reported-by: Christopher Baines <mail@cbaines.net>
2019-09-17email: Tolerate non-ASCII characters in headers.Arun Isaac
We tolerate non-ASCII characters in headers in order to support Emacs message mode parens style addresses. * email/email.scm (email->headers+body): Read headers as UTF-8 characters. * tests/email.scm ("tolerate non-ascii characters in headers"): New tests. Reported-by: Christopher Baines <mail@cbaines.net>
2019-08-07doc: Document mbox->emails.Arun Isaac
* doc/guile-email.texi (Reading Email): New chapter. * email/email.scm (mbox->emails): Add docstring.
2019-07-28email: Improve comment about default charset.Arun Isaac
* email/email.scm (post-process-content-type): Mention that RFC6657 specifies UTF-8 as the default charset only for text/* media types.
2019-07-28email: Read mboxes as bytevectors.Arun Isaac
* email/email.scm (read-next-email-in-mbox): Read bytes from mboxes, not characters.
2019-07-28email: Decode MIME entities without headers.Arun Isaac
* email/email.scm (email->headers+body): If there are no headers, return "" as headers not an eof-object. (parse-email-body): Parse headers of parent entity or email to parse-mime-entity. (add-default-mime-entity-headers): New function. (parse-mime-entity): Use add-default-mime-entity-headers instead of add-default-headers. Handle MIME entities without headers. * tests/email.scm ("decode MIME entity without headers"): New test.
2019-07-28email: Support email with mixed encoding of characters.Arun Isaac
Prior to this, parse-email would accept email in the form of a string. A string is constrained to use the same encoding for all its characters whereas an email can have characters encoded using different encoding schemes. Therefore, it is more correct that parse-email deals with bytevectors instead of strings. * email/utils.scm (read-bytes-till): New function. * email/email.scm (body->mime-entities, email->headers+body, decode-body): Deal with emails as bytevectors instead of strings. (parse-mime-entity): Rename text argument to bv. (parse-email, parse-email-body): Overload to handle input in the form of a string or bytevector. * doc/guile-email.texi (Parsing e-mail): Document overloading of parse-email and parse-email-body. * tests/email.scm ("handle truncated multipart message gracefully"): Deal in bytevectors instead of strings. ("email with 8 bit encoding and non UTF-8 charset", "multipart email with a 8 bit encoding and non UTF-8 charset part"): New tests. * tests/email-with-8bit-encoding-and-non-utf8-charset, tests/multipart-email-with-a-8bit-encoding-and-non-utf8-charset-part: New files. Reported-by: Jack Hill <jackhill@jackhill.us>
2019-07-26email: Match mime-entity-fields only against headers.Arun Isaac
* email/email.scm (parse-mime-entity): Match mime-entity-fields only against the headers, not the whole email.
2019-07-26email: Import all of (email utils).Arun Isaac
* email/email.scm: Import all of (email utils), not a subset of the exported functions.
2019-07-21email: Decode MIME encoded words in Subject header.Arun Isaac
Prior to this, MIME encoded words in the Subject header were not decoded. * email/email.scm (parse-email-headers): Decode MIME encoded words in Subject header. * tests/email.scm ("decode MIME encoded words in Subject header"): New test. Reported-by: Ricardo Wurmus <rekado@elephly.net>
2019-06-25email: Fix typo in docstring of parse-mime-entity.Arun Isaac
* email/email.scm (parse-mime-entity): Replace "a" with "an" in docstring.
2018-11-13email: Support emacs message mode parens style addresses.Arun Isaac
* email/email.scm (define-comment-pattern, define-cfws-pattern, define-dot-atom-pattern, define-domain-pattern, define-addr-spec-pattern): New macros. (captured-comment, captured-cfws, captured-dot-atom, captured-domain, captured-addr-spec): New patterns. (mailbox): Use captured-addr-spec instead of addr-spec. (post-process-mailbox): Handle emacs message mode parens style addresses.
2018-11-13email: Discard angle brackets in address fields only.Arun Isaac
* email/email.scm (define-angle-addr): New macro. (unbracketed-angle-addr): New pattern. (name-addr): Use unbracketed-angle-addr instead of angle-addr. (post-process-mailbox): Do not trim angle brackets from address. That is now handled by the grammar itself.
2018-11-13email: Deduplicate email address parsing.Arun Isaac
* email/email.scm (post-process-mailbox): New function. (parse-email-address): Call post-process-mailbox instead of reimplementing address parsing using regular expressions. (parse-email-headers): Call post-process-mailbox.
2018-11-13email: Fix typo in parse-email-address docstring.Arun Isaac
* email/email.scm (parse-email-address): Fix typo in examples in parse-email-address docstring. The returned value must be an association list of pairs, not of lists.
2018-10-01email: Do not discard trace fields.Arun Isaac
* email/email.scm (angle-addr): Capture "<" and ">". (parse-email-headers): Do not discard trace fields. Trim "<" and ">" from angle-addr in mailbox, but not from trace fields.
2018-10-01email: Handle truncated messages gracefully.Arun Isaac
* email/email.scm (body->mime-entities)[read-mime-entity]: Check for eof-object so that truncated messages are handled gracefully without raising an error.
2018-09-12Untabify and re-indent all sources.Arun Isaac
* build-aux/test-driver.scm, email/base64.scm, email/email.scm, email/quoted-printable.scm, email/utils.scm, tests/quoted-printable.scm: Untabify and re-indent.
2018-09-08Initial commit.Arun Isaac