[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[elpa] externals/webfeeder 7000480 01/22: Init
From: |
Pierre Neidhardt |
Subject: |
[elpa] externals/webfeeder 7000480 01/22: Init |
Date: |
Tue, 26 Mar 2019 07:10:00 -0400 (EDT) |
branch: externals/webfeeder
commit 70004800cc1265032b5ac8b79e514cc7fe0656d7
Author: Pierre Neidhardt <address@hidden>
Commit: Pierre Neidhardt <address@hidden>
Init
---
COPYING | 674 ++++++++++++++++++++++++++++++++++++
Makefile | 11 +
readme.org | 107 ++++++
testdata/default-post0.atom | 38 ++
testdata/default-post0.rss | 40 +++
testdata/libxml-post0+post1.atom | 87 +++++
testdata/libxml-post0+post1.rss | 89 +++++
testdata/libxml-post0-no-fancy.atom | 37 ++
testdata/libxml-post0-no-fancy.rss | 39 +++
testdata/libxml-post0-no-html.atom | 37 ++
testdata/libxml-post0-no-html.rss | 39 +++
testdata/libxml-post0.atom | 35 ++
testdata/libxml-post0.rss | 37 ++
testdata/libxml-post1.atom | 61 ++++
testdata/libxml-post1.rss | 63 ++++
testdata/post0-html5-fancy.html | 50 +++
testdata/post0-html5.html | 51 +++
testdata/post0.html | 53 +++
testdata/post0.org | 16 +
testdata/post1-html5-fancy.html | 73 ++++
testdata/post1-html5.html | 72 ++++
testdata/post1.html | 74 ++++
testdata/post1.org | 34 ++
webfeeder-test-gen.el | 121 +++++++
webfeeder-test.el | 198 +++++++++++
webfeeder.el | 484 ++++++++++++++++++++++++++
26 files changed, 2620 insertions(+)
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+ The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works. By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users. We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors. You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+ To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights. Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received. You must make sure that they, too, receive
+or can get the source code. And you must show them these terms so they
+know their rights.
+
+ Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+ For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software. For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+ Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so. This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software. The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable. Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products. If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+ Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary. To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ TERMS AND CONDITIONS
+
+ 0. Definitions.
+
+ "This License" refers to version 3 of the GNU General Public License.
+
+ "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+ "The Program" refers to any copyrightable work licensed under this
+License. Each licensee is addressed as "you". "Licensees" and
+"recipients" may be individuals or organizations.
+
+ To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy. The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+ A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+ To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy. Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+ To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies. Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+ An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License. If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+ 1. Source Code.
+
+ The "source code" for a work means the preferred form of the work
+for making modifications to it. "Object code" means any non-source
+form of a work.
+
+ A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+ The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form. A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+ The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities. However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work. For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+ The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+ The Corresponding Source for a work in source code form is that
+same work.
+
+ 2. Basic Permissions.
+
+ All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met. This License explicitly affirms your unlimited
+permission to run the unmodified Program. The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work. This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+ You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force. You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright. Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+ Conveying under any other circumstances is permitted solely under
+the conditions stated below. Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+ 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+ No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+ When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+ 4. Conveying Verbatim Copies.
+
+ You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+ You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+ 5. Conveying Modified Source Versions.
+
+ You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+ a) The work must carry prominent notices stating that you modified
+ it, and giving a relevant date.
+
+ b) The work must carry prominent notices stating that it is
+ released under this License and any conditions added under section
+ 7. This requirement modifies the requirement in section 4 to
+ "keep intact all notices".
+
+ c) You must license the entire work, as a whole, under this
+ License to anyone who comes into possession of a copy. This
+ License will therefore apply, along with any applicable section 7
+ additional terms, to the whole of the work, and all its parts,
+ regardless of how they are packaged. This License gives no
+ permission to license the work in any other way, but it does not
+ invalidate such permission if you have separately received it.
+
+ d) If the work has interactive user interfaces, each must display
+ Appropriate Legal Notices; however, if the Program has interactive
+ interfaces that do not display Appropriate Legal Notices, your
+ work need not make them do so.
+
+ A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit. Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+ 6. Conveying Non-Source Forms.
+
+ You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+ a) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by the
+ Corresponding Source fixed on a durable physical medium
+ customarily used for software interchange.
+
+ b) Convey the object code in, or embodied in, a physical product
+ (including a physical distribution medium), accompanied by a
+ written offer, valid for at least three years and valid for as
+ long as you offer spare parts or customer support for that product
+ model, to give anyone who possesses the object code either (1) a
+ copy of the Corresponding Source for all the software in the
+ product that is covered by this License, on a durable physical
+ medium customarily used for software interchange, for a price no
+ more than your reasonable cost of physically performing this
+ conveying of source, or (2) access to copy the
+ Corresponding Source from a network server at no charge.
+
+ c) Convey individual copies of the object code with a copy of the
+ written offer to provide the Corresponding Source. This
+ alternative is allowed only occasionally and noncommercially, and
+ only if you received the object code with such an offer, in accord
+ with subsection 6b.
+
+ d) Convey the object code by offering access from a designated
+ place (gratis or for a charge), and offer equivalent access to the
+ Corresponding Source in the same way through the same place at no
+ further charge. You need not require recipients to copy the
+ Corresponding Source along with the object code. If the place to
+ copy the object code is a network server, the Corresponding Source
+ may be on a different server (operated by you or a third party)
+ that supports equivalent copying facilities, provided you maintain
+ clear directions next to the object code saying where to find the
+ Corresponding Source. Regardless of what server hosts the
+ Corresponding Source, you remain obligated to ensure that it is
+ available for as long as needed to satisfy these requirements.
+
+ e) Convey the object code using peer-to-peer transmission, provided
+ you inform other peers where the object code and Corresponding
+ Source of the work are being offered to the general public at no
+ charge under subsection 6d.
+
+ A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+ A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling. In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage. For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product. A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+ "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source. The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+ If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information. But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+ The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed. Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+ Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+ 7. Additional Terms.
+
+ "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law. If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+ When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it. (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.) You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+ Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+ a) Disclaiming warranty or limiting liability differently from the
+ terms of sections 15 and 16 of this License; or
+
+ b) Requiring preservation of specified reasonable legal notices or
+ author attributions in that material or in the Appropriate Legal
+ Notices displayed by works containing it; or
+
+ c) Prohibiting misrepresentation of the origin of that material, or
+ requiring that modified versions of such material be marked in
+ reasonable ways as different from the original version; or
+
+ d) Limiting the use for publicity purposes of names of licensors or
+ authors of the material; or
+
+ e) Declining to grant rights under trademark law for use of some
+ trade names, trademarks, or service marks; or
+
+ f) Requiring indemnification of licensors and authors of that
+ material by anyone who conveys the material (or modified versions of
+ it) with contractual assumptions of liability to the recipient, for
+ any liability that these contractual assumptions directly impose on
+ those licensors and authors.
+
+ All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10. If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term. If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+ If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+ Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+ 8. Termination.
+
+ You may not propagate or modify a covered work except as expressly
+provided under this License. Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+ However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+ Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License. If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+ 9. Acceptance Not Required for Having Copies.
+
+ You are not required to accept this License in order to receive or
+run a copy of the Program. Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance. However,
+nothing other than this License grants you permission to propagate or
+modify any covered work. These actions infringe copyright if you do
+not accept this License. Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+ 10. Automatic Licensing of Downstream Recipients.
+
+ Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License. You are not responsible
+for enforcing compliance by third parties with this License.
+
+ An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations. If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+ You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License. For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+ 11. Patents.
+
+ A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based. The
+work thus licensed is called the contributor's "contributor version".
+
+ A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+ Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+ In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+ If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+ If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+ A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License. You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+ Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+ 12. No Surrender of Others' Freedom.
+
+ If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all. For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+ 13. Use with the GNU Affero General Public License.
+
+ Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+ 14. Revised Versions of this License.
+
+ The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation. If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+ If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+ Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+ 15. Disclaimer of Warranty.
+
+ THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c1d9f47
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,11 @@
+EMACS = emacs
+EMACS_FLAGS = -q
+
+check:
+ $(EMACS) $(EMACS_FLAGS) -batch -l ert -l webfeeder-test.el -f
ert-run-tests-batch-and-exit
+
+html:
+ $(EMACS) $(EMACS_FLAGS) -batch -l webfeeder.el -l webfeeder-test.el -l
webfeeder-test-gen.el -f webfeeder-test-gen
+
+feeds:
+ $(EMACS) $(EMACS_FLAGS) -batch -l webfeeder.el -l webfeeder-test.el -l
webfeeder-test-gen.el -f webfeeder-test-gen-feeds
diff --git a/readme.org b/readme.org
new file mode 100644
index 0000000..8483b52
--- /dev/null
+++ b/readme.org
@@ -0,0 +1,107 @@
+#+TITLE: Emacs Webfeeder
+
+Webfeeder is an Emacs library to generate
[[https://en.wikipedia.org/wiki/RSS][RSS]] and
[[https://en.wikipedia.org/wiki/Atom_(Web_standard)][Atom]] feeds from HTML
files.
+
+Other webfeed generators have been written for Emacs, but either they are tied
+to other projects like blog generators, or they only work on Org files like
+=ox-rss=. Since Webfeeder generates webfeeds from HTML files, it is more
+general.
+
+The various elements of the HTML input are parsed with customizable functions.
+For instance, Webfeeder offers two functions to parse the title:
+~feed-builder-title-libxml~ (using libxml if your Emacs is linked against it)
+and the less reliable ~feed-builder-title-default~.
+Feel free to write you own function and bind ~feed-builder-title-function~
+before generating the feeds.
+
+The generated feeds should be valid on https://validator.w3.org/feed/. If not,
+it's a bug, please report.
+
+The full list of customizable functions is documented in
+~feed-builder-html-files-to-items~.
+
+* Installation
+
+Get the package, either from [[https://guix.info][Guix]] or ELPA:
+
+: M-x package-install RET webfeeder RET
+
+Or clone / download this repository and modify your ~load-path~.
+
+: (add-to-list 'load-path (expand-file-name "/path/to/this-package/"
user-emacs-directory))
+
+Load the package with
+
+: (require 'webfeeder)
+
+* Usage
+
+- Build an Atom feed:
+
+#+begin_src elisp
+(feed-builder-build
+ "atom.xml"
+ "./public"
+ "https://example.org/"
+ '("post1.html" "post2.html" "post3.html")
+ (delete "index.html"
+ (mapcar (lambda (f) (replace-regexp-in-string ".*/public/" "" f))
+ (directory-files-recursively "public" "index.html")))
+ :title "My homepage"
+ :description "A collection of articles")
+#+end_src
+
+- To build an RSS feed, use the RSS builder:
+
+#+begin_src elisp
+(feed-builder-build
+ "rss.xml"
+ "./public"
+ "https://example.org/"
+ '("post1.html" "post2.html" "post3.html")
+ (delete "index.html"
+ (mapcar (lambda (f) (replace-regexp-in-string ".*/public/" "" f))
+ (directory-files-recursively "public" "index.html")))
+ :title "My homepage"
+ :description "A collection of articles"
+ :builder 'feed-builder-make-rss)
+#+end_src
+
+- Use a custom title query function:
+
+#+begin_src elisp
+(defun my-title-query (html-file)
+ "Return the title from the \"title\" class in the HTML file."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ (title (dom-text (car (dom-by-class dom "title")))))
+ (if (string= "" title)
+ nil
+ title))))
+
+(let ((feed-builder-title-function 'my-title-query))
+ (feed-builder-build
+ ; ...))
+#+end_src
+
+- Limit the feed to 20 articles:
+
+#+begin_src elisp
+(feed-builder-build
+ ; ...
+ :max-entries 20)
+#+end_src
+
+- Filter some entries with a predicate
+
+#+begin_src elisp
+(defun item-author-is-Alice-p (item)
+ (string= (feed-builder-item-author item) "Alice")
+
+(feed-builder-build
+ ; ...
+ :predicate 'item-author-is-Alice-p)
+#+end_src
+
+See the documentation of ~feed-builder-build~ for more options.
diff --git a/testdata/default-post0.atom b/testdata/default-post0.atom
new file mode 100644
index 0000000..67c1831
--- /dev/null
+++ b/testdata/default-post0.atom
@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom"><title>Example feed</title>
+<summary>Example description</summary>
+<generator>Emacs webfeeder.el</generator>
+<link href="https://example.org/">
+<link href="https://example.org/default-post0.atom" rel="self"/>
+<id>https://example.org/default-post0.atom</id>
+<updated>1970-01-01T01:00:00+0100</updated>
+<entry>
+ <title>First post</title>
+ <author><name>John Doe</name></author>
+ <summary>First post's subtitle</summary>
+ <content><![CDATA[
+<p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+<div id="outline-container-org86962ff" class="outline-2">
+<h2 id="org86962ff"><span class="section-number-2">1</span> Contacts</h2>
+<div class="outline-text-2" id="text-1">
+<ul class="org-ul">
+<li>Email: <a
href="https://example.org/post0-html5-fancy.html/mailto:address@hidden">address@hidden</a></li>
+</ul>
+</div>
+</div>
+</div>
+]]></content>
+ <link>https://example.org/post0-html5-fancy.html</link>
+ <id>https://example.org/post0-html5-fancy.html</id>
+ <updated>2019-03-13T17:46:00+0100</updated>
+</entry>
+</feed>
diff --git a/testdata/default-post0.rss b/testdata/default-post0.rss
new file mode 100644
index 0000000..4d17520
--- /dev/null
+++ b/testdata/default-post0.rss
@@ -0,0 +1,40 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+<title>Example feed</title>
+<description>Example description</description>
+<generator>Emacs webfeeder.el</generator>
+<link>https://example.org/</link>
+<atom:link href="https://example.org/default-post0.rss" rel="self"
type="application/rss+xml"/>
+<lastBuildDate>Thu, 01 Jan 1970 01:00:00 +0100</lastBuildDate>
+<item>
+ <author>John Doe</author>
+ <title>First post</title>
+ <comments>First post's subtitle</comments>
+ <description><![CDATA[
+<p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+<div id="outline-container-org86962ff" class="outline-2">
+<h2 id="org86962ff"><span class="section-number-2">1</span> Contacts</h2>
+<div class="outline-text-2" id="text-1">
+<ul class="org-ul">
+<li>Email: <a
href="https://example.org/post0-html5-fancy.html/mailto:address@hidden">address@hidden</a></li>
+</ul>
+</div>
+</div>
+</div>
+]]></description>
+ <link>https://example.org/post0-html5-fancy.html</link>
+ <guid isPermaLink="false">https://example.org/post0-html5-fancy.html</guid>
+ <pubDate>Wed, 13 Mar 2019 17:46:00 +0100</pubDate>
+</item>
+</channel>
+</rss>
diff --git a/testdata/libxml-post0+post1.atom b/testdata/libxml-post0+post1.atom
new file mode 100644
index 0000000..1cd34e2
--- /dev/null
+++ b/testdata/libxml-post0+post1.atom
@@ -0,0 +1,87 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom"><title>Example feed</title>
+<summary>Example description</summary>
+<generator>Emacs webfeeder.el</generator>
+<link href="https://example.org/">
+<link href="https://example.org/libxml-post0+post1.atom" rel="self"/>
+<id>https://example.org/libxml-post0+post1.atom</id>
+<updated>1970-01-01T01:00:00+0100</updated>
+<entry>
+ <title>Second post</title>
+ <content><![CDATA[<div id="content">
+ <p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+ <div id="outline-container-org603c6e3" class="outline-2">
+ <h2 id="org603c6e3"> <span class="section-number-2">1</span> Section 1</h2>
+ <div class="outline-text-2" id="text-1">
+ <p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+ <div id="outline-container-org327bd12" class="outline-2">
+ <h2 id="org327bd12"> <span class="section-number-2">2</span> Section 2</h2>
+ <div class="outline-text-2" id="text-2">
+ <p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>]]></content>
+ <link>https://example.org/post1-html5-fancy.html</link>
+ <id>https://example.org/post1-html5-fancy.html</id>
+ <updated>2019-03-13T01:00:00+0100</updated>
+</entry>
+<entry>
+ <title>First post</title>
+ <author><name>John Doe</name></author>
+ <summary>First post's subtitle</summary>
+ <content><![CDATA[<div id="content">
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org86962ff" class="outline-2">
+ <h2 id="org86962ff"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></content>
+ <link>https://example.org/post0-html5-fancy.html</link>
+ <id>https://example.org/post0-html5-fancy.html</id>
+ <updated>2019-01-27T01:00:00+0100</updated>
+</entry>
+</feed>
diff --git a/testdata/libxml-post0+post1.rss b/testdata/libxml-post0+post1.rss
new file mode 100644
index 0000000..c1d043f
--- /dev/null
+++ b/testdata/libxml-post0+post1.rss
@@ -0,0 +1,89 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+<title>Example feed</title>
+<description>Example description</description>
+<generator>Emacs webfeeder.el</generator>
+<link>https://example.org/</link>
+<atom:link href="https://example.org/libxml-post0+post1.rss" rel="self"
type="application/rss+xml"/>
+<lastBuildDate>Thu, 01 Jan 1970 01:00:00 +0100</lastBuildDate>
+<item>
+ <title>Second post</title>
+ <description><![CDATA[<div id="content">
+ <p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+ <div id="outline-container-org603c6e3" class="outline-2">
+ <h2 id="org603c6e3"> <span class="section-number-2">1</span> Section 1</h2>
+ <div class="outline-text-2" id="text-1">
+ <p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+ <div id="outline-container-org327bd12" class="outline-2">
+ <h2 id="org327bd12"> <span class="section-number-2">2</span> Section 2</h2>
+ <div class="outline-text-2" id="text-2">
+ <p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>]]></description>
+ <link>https://example.org/post1-html5-fancy.html</link>
+ <guid isPermaLink="false">https://example.org/post1-html5-fancy.html</guid>
+ <pubDate>Wed, 13 Mar 2019 01:00:00 +0100</pubDate>
+</item>
+<item>
+ <author>John Doe</author>
+ <title>First post</title>
+ <comments>First post's subtitle</comments>
+ <description><![CDATA[<div id="content">
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org86962ff" class="outline-2">
+ <h2 id="org86962ff"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></description>
+ <link>https://example.org/post0-html5-fancy.html</link>
+ <guid isPermaLink="false">https://example.org/post0-html5-fancy.html</guid>
+ <pubDate>Sun, 27 Jan 2019 01:00:00 +0100</pubDate>
+</item>
+</channel>
+</rss>
diff --git a/testdata/libxml-post0-no-fancy.atom
b/testdata/libxml-post0-no-fancy.atom
new file mode 100644
index 0000000..17394ce
--- /dev/null
+++ b/testdata/libxml-post0-no-fancy.atom
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom"><title>Example feed</title>
+<summary>Example description</summary>
+<generator>Emacs webfeeder.el</generator>
+<link href="https://example.org/">
+<link href="https://example.org/libxml-post0-no-fancy.atom" rel="self"/>
+<id>https://example.org/libxml-post0-no-fancy.atom</id>
+<updated>1970-01-01T01:00:00+0100</updated>
+<entry>
+ <title>First post</title>
+ <author><name>John Doe</name></author>
+ <summary>First post's subtitle</summary>
+ <content><![CDATA[<div id="content">
+
+
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org8dd18bc" class="outline-2">
+ <h2 id="org8dd18bc"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></content>
+ <link>https://example.org/post0-html5.html</link>
+ <id>https://example.org/post0-html5.html</id>
+ <updated>2019-01-27T01:00:00+0100</updated>
+</entry>
+</feed>
diff --git a/testdata/libxml-post0-no-fancy.rss
b/testdata/libxml-post0-no-fancy.rss
new file mode 100644
index 0000000..25e643b
--- /dev/null
+++ b/testdata/libxml-post0-no-fancy.rss
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+<title>Example feed</title>
+<description>Example description</description>
+<generator>Emacs webfeeder.el</generator>
+<link>https://example.org/</link>
+<atom:link href="https://example.org/libxml-post0-no-fancy.rss" rel="self"
type="application/rss+xml"/>
+<lastBuildDate>Thu, 01 Jan 1970 01:00:00 +0100</lastBuildDate>
+<item>
+ <author>John Doe</author>
+ <title>First post</title>
+ <comments>First post's subtitle</comments>
+ <description><![CDATA[<div id="content">
+
+
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org8dd18bc" class="outline-2">
+ <h2 id="org8dd18bc"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></description>
+ <link>https://example.org/post0-html5.html</link>
+ <guid isPermaLink="false">https://example.org/post0-html5.html</guid>
+ <pubDate>Sun, 27 Jan 2019 01:00:00 +0100</pubDate>
+</item>
+</channel>
+</rss>
diff --git a/testdata/libxml-post0-no-html.atom
b/testdata/libxml-post0-no-html.atom
new file mode 100644
index 0000000..333884a
--- /dev/null
+++ b/testdata/libxml-post0-no-html.atom
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom"><title>Example feed</title>
+<summary>Example description</summary>
+<generator>Emacs webfeeder.el</generator>
+<link href="https://example.org/">
+<link href="https://example.org/libxml-post0-no-html.atom" rel="self"/>
+<id>https://example.org/libxml-post0-no-html.atom</id>
+<updated>1970-01-01T01:00:00+0100</updated>
+<entry>
+ <title>First post</title>
+ <author><name>John Doe</name></author>
+ <summary>First post's subtitle</summary>
+ <content><![CDATA[<div id="content">
+
+
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org920b108" class="outline-2">
+ <h2 id="org920b108"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></content>
+ <link>https://example.org/post0.html</link>
+ <id>https://example.org/post0.html</id>
+ <updated>2019-01-27T01:00:00+0100</updated>
+</entry>
+</feed>
diff --git a/testdata/libxml-post0-no-html.rss
b/testdata/libxml-post0-no-html.rss
new file mode 100644
index 0000000..5e6d049
--- /dev/null
+++ b/testdata/libxml-post0-no-html.rss
@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+<title>Example feed</title>
+<description>Example description</description>
+<generator>Emacs webfeeder.el</generator>
+<link>https://example.org/</link>
+<atom:link href="https://example.org/libxml-post0-no-html.rss" rel="self"
type="application/rss+xml"/>
+<lastBuildDate>Thu, 01 Jan 1970 01:00:00 +0100</lastBuildDate>
+<item>
+ <author>John Doe</author>
+ <title>First post</title>
+ <comments>First post's subtitle</comments>
+ <description><![CDATA[<div id="content">
+
+
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org920b108" class="outline-2">
+ <h2 id="org920b108"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></description>
+ <link>https://example.org/post0.html</link>
+ <guid isPermaLink="false">https://example.org/post0.html</guid>
+ <pubDate>Sun, 27 Jan 2019 01:00:00 +0100</pubDate>
+</item>
+</channel>
+</rss>
diff --git a/testdata/libxml-post0.atom b/testdata/libxml-post0.atom
new file mode 100644
index 0000000..7167036
--- /dev/null
+++ b/testdata/libxml-post0.atom
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom"><title>Example feed</title>
+<summary>Example description</summary>
+<generator>Emacs webfeeder.el</generator>
+<link href="https://example.org/">
+<link href="https://example.org/libxml-post0.atom" rel="self"/>
+<id>https://example.org/libxml-post0.atom</id>
+<updated>1970-01-01T01:00:00+0100</updated>
+<entry>
+ <title>First post</title>
+ <author><name>John Doe</name></author>
+ <summary>First post's subtitle</summary>
+ <content><![CDATA[<div id="content">
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org86962ff" class="outline-2">
+ <h2 id="org86962ff"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></content>
+ <link>https://example.org/post0-html5-fancy.html</link>
+ <id>https://example.org/post0-html5-fancy.html</id>
+ <updated>2019-01-27T01:00:00+0100</updated>
+</entry>
+</feed>
diff --git a/testdata/libxml-post0.rss b/testdata/libxml-post0.rss
new file mode 100644
index 0000000..aa4da68
--- /dev/null
+++ b/testdata/libxml-post0.rss
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+<title>Example feed</title>
+<description>Example description</description>
+<generator>Emacs webfeeder.el</generator>
+<link>https://example.org/</link>
+<atom:link href="https://example.org/libxml-post0.rss" rel="self"
type="application/rss+xml"/>
+<lastBuildDate>Thu, 01 Jan 1970 01:00:00 +0100</lastBuildDate>
+<item>
+ <author>John Doe</author>
+ <title>First post</title>
+ <comments>First post's subtitle</comments>
+ <description><![CDATA[<div id="content">
+ <p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+ <div id="outline-container-org86962ff" class="outline-2">
+ <h2 id="org86962ff"> <span class="section-number-2">1</span> Contacts</h2>
+ <div class="outline-text-2" id="text-1">
+ <ul class="org-ul"> <li>Email: <a
href="mailto:address@hidden">address@hidden</a></li>
+</ul></div>
+</div>
+</div>]]></description>
+ <link>https://example.org/post0-html5-fancy.html</link>
+ <guid isPermaLink="false">https://example.org/post0-html5-fancy.html</guid>
+ <pubDate>Sun, 27 Jan 2019 01:00:00 +0100</pubDate>
+</item>
+</channel>
+</rss>
diff --git a/testdata/libxml-post1.atom b/testdata/libxml-post1.atom
new file mode 100644
index 0000000..dcfc3e1
--- /dev/null
+++ b/testdata/libxml-post1.atom
@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom"><title>Example feed</title>
+<summary>Example description</summary>
+<generator>Emacs webfeeder.el</generator>
+<link href="https://example.org/">
+<link href="https://example.org/libxml-post1.atom" rel="self"/>
+<id>https://example.org/libxml-post1.atom</id>
+<updated>1970-01-01T01:00:00+0100</updated>
+<entry>
+ <title>Second post</title>
+ <content><![CDATA[<div id="content">
+ <p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+ <div id="outline-container-org603c6e3" class="outline-2">
+ <h2 id="org603c6e3"> <span class="section-number-2">1</span> Section 1</h2>
+ <div class="outline-text-2" id="text-1">
+ <p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+ <div id="outline-container-org327bd12" class="outline-2">
+ <h2 id="org327bd12"> <span class="section-number-2">2</span> Section 2</h2>
+ <div class="outline-text-2" id="text-2">
+ <p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>]]></content>
+ <link>https://example.org/post1-html5-fancy.html</link>
+ <id>https://example.org/post1-html5-fancy.html</id>
+ <updated>2019-03-13T01:00:00+0100</updated>
+</entry>
+</feed>
diff --git a/testdata/libxml-post1.rss b/testdata/libxml-post1.rss
new file mode 100644
index 0000000..3c3fa08
--- /dev/null
+++ b/testdata/libxml-post1.rss
@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom">
+<channel>
+<title>Example feed</title>
+<description>Example description</description>
+<generator>Emacs webfeeder.el</generator>
+<link>https://example.org/</link>
+<atom:link href="https://example.org/libxml-post1.rss" rel="self"
type="application/rss+xml"/>
+<lastBuildDate>Thu, 01 Jan 1970 01:00:00 +0100</lastBuildDate>
+<item>
+ <title>Second post</title>
+ <description><![CDATA[<div id="content">
+ <p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+ <div id="outline-container-org603c6e3" class="outline-2">
+ <h2 id="org603c6e3"> <span class="section-number-2">1</span> Section 1</h2>
+ <div class="outline-text-2" id="text-1">
+ <p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+ <div id="outline-container-org327bd12" class="outline-2">
+ <h2 id="org327bd12"> <span class="section-number-2">2</span> Section 2</h2>
+ <div class="outline-text-2" id="text-2">
+ <p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>]]></description>
+ <link>https://example.org/post1-html5-fancy.html</link>
+ <guid isPermaLink="false">https://example.org/post1-html5-fancy.html</guid>
+ <pubDate>Wed, 13 Mar 2019 01:00:00 +0100</pubDate>
+</item>
+</channel>
+</rss>
diff --git a/testdata/post0-html5-fancy.html b/testdata/post0-html5-fancy.html
new file mode 100644
index 0000000..22408c5
--- /dev/null
+++ b/testdata/post0-html5-fancy.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<!-- 2019-03-13 Wed 17:46 -->
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>First post</title>
+<meta name="generator" content="Org mode">
+<meta name="author" content="John Doe">
+</head>
+<body>
+<div id="content">
+<header>
+<h1 class="title">First post</h1>
+<p class="subtitle">First post's subtitle</p>
+</header><nav id="table-of-contents">
+<h2>Table of Contents</h2>
+<div id="text-table-of-contents">
+<ul>
+<li><a href="#org86962ff">1. Contacts</a></li>
+</ul>
+</div>
+</nav>
+<p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+<div id="outline-container-org86962ff" class="outline-2">
+<h2 id="org86962ff"><span class="section-number-2">1</span> Contacts</h2>
+<div class="outline-text-2" id="text-1">
+<ul class="org-ul">
+<li>Email: <a href="mailto:address@hidden">address@hidden</a></li>
+</ul>
+</div>
+</div>
+</div>
+<div id="postamble" class="status">
+<p class="date">Date: 2019-01-27 Sun 00:00</p>
+<p class="author">Author: John Doe</p>
+<p class="date">Created: 2019-03-13 Wed 17:46</p>
+<p class="validation"><a
href="http://validator.w3.org/check?uri=referer">Validate</a></p>
+</div>
+</body>
+</html>
diff --git a/testdata/post0-html5.html b/testdata/post0-html5.html
new file mode 100644
index 0000000..6dbd3f4
--- /dev/null
+++ b/testdata/post0-html5.html
@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<!-- 2019-03-13 Wed 17:46 -->
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>First post</title>
+<meta name="generator" content="Org mode">
+<meta name="author" content="John Doe">
+</head>
+<body>
+<div id="content">
+<h1 class="title">First post
+<br>
+<span class="subtitle">First post's subtitle</span>
+</h1>
+<div id="table-of-contents">
+<h2>Table of Contents</h2>
+<div id="text-table-of-contents">
+<ul>
+<li><a href="#org8dd18bc">1. Contacts</a></li>
+</ul>
+</div>
+</div>
+<p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+<div id="outline-container-org8dd18bc" class="outline-2">
+<h2 id="org8dd18bc"><span class="section-number-2">1</span> Contacts</h2>
+<div class="outline-text-2" id="text-1">
+<ul class="org-ul">
+<li>Email: <a href="mailto:address@hidden">address@hidden</a></li>
+</ul>
+</div>
+</div>
+</div>
+<div id="postamble" class="status">
+<p class="date">Date: 2019-01-27 Sun 00:00</p>
+<p class="author">Author: John Doe</p>
+<p class="date">Created: 2019-03-13 Wed 17:46</p>
+<p class="validation"><a
href="http://validator.w3.org/check?uri=referer">Validate</a></p>
+</div>
+</body>
+</html>
diff --git a/testdata/post0.html b/testdata/post0.html
new file mode 100644
index 0000000..93b81da
--- /dev/null
+++ b/testdata/post0.html
@@ -0,0 +1,53 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
+<head>
+<!-- 2019-03-13 Wed 17:46 -->
+<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+<title>First post</title>
+<meta name="generator" content="Org mode" />
+<meta name="author" content="John Doe" />
+</head>
+<body>
+<div id="content">
+<h1 class="title">First post
+<br />
+<span class="subtitle">First post's subtitle</span>
+</h1>
+<div id="table-of-contents">
+<h2>Table of Contents</h2>
+<div id="text-table-of-contents">
+<ul>
+<li><a href="#org920b108">1. Contacts</a></li>
+</ul>
+</div>
+</div>
+<p>
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+</p>
+
+<div id="outline-container-org920b108" class="outline-2">
+<h2 id="org920b108"><span class="section-number-2">1</span> Contacts</h2>
+<div class="outline-text-2" id="text-1">
+<ul class="org-ul">
+<li>Email: <a href="mailto:address@hidden">address@hidden</a></li>
+</ul>
+</div>
+</div>
+</div>
+<div id="postamble" class="status">
+<p class="date">Date: 2019-01-27 Sun 00:00</p>
+<p class="author">Author: John Doe</p>
+<p class="date">Created: 2019-03-13 Wed 17:46</p>
+<p class="validation"><a
href="http://validator.w3.org/check?uri=referer">Validate</a></p>
+</div>
+</body>
+</html>
diff --git a/testdata/post0.org b/testdata/post0.org
new file mode 100644
index 0000000..a28d300
--- /dev/null
+++ b/testdata/post0.org
@@ -0,0 +1,16 @@
+#+TITLE: First post
+#+SUBTITLE: First post's subtitle
+#+AUTHOR: John Doe
+#+DATE: <2019-01-27 Sun>
+
+Aliquam erat volutpat. Nunc eleifend leo vitae magna. In id erat non orci
+commodo lobortis. Proin neque massa, cursus ut, gravida ut, lobortis eget,
+lacus. Sed diam. Praesent fermentum tempor tellus. Nullam tempus. Mauris ac
+felis vel velit tristique imperdiet. Donec at pede. Etiam vel neque nec dui
+dignissim bibendum. Vivamus id enim. Phasellus neque orci, porta a, aliquet
+quis, semper a, massa. Phasellus purus. Pellentesque tristique imperdiet
+tortor. Nam euismod tellus id erat.
+
+* Contacts
+
+- Email: [[mailto:address@hidden@ambrevar.xyz]]
diff --git a/testdata/post1-html5-fancy.html b/testdata/post1-html5-fancy.html
new file mode 100644
index 0000000..abfacad
--- /dev/null
+++ b/testdata/post1-html5-fancy.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<!-- 2019-03-13 Wed 17:46 -->
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Second post</title>
+<meta name="generator" content="Org mode">
+</head>
+<body>
+<div id="content">
+<header>
+<h1 class="title">Second post</h1>
+</header><nav id="table-of-contents">
+<h2>Table of Contents</h2>
+<div id="text-table-of-contents">
+<ul>
+<li><a href="#org603c6e3">1. Section 1</a></li>
+<li><a href="#org327bd12">2. Section 2</a></li>
+</ul>
+</div>
+</nav>
+<p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+<div id="outline-container-org603c6e3" class="outline-2">
+<h2 id="org603c6e3"><span class="section-number-2">1</span> Section 1</h2>
+<div class="outline-text-2" id="text-1">
+<p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+<div id="outline-container-org327bd12" class="outline-2">
+<h2 id="org327bd12"><span class="section-number-2">2</span> Section 2</h2>
+<div class="outline-text-2" id="text-2">
+<p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>
+<div id="postamble" class="status">
+<p class="date">Created: 2019-03-13 Wed 17:46</p>
+<p class="validation"><a
href="http://validator.w3.org/check?uri=referer">Validate</a></p>
+</div>
+</body>
+</html>
diff --git a/testdata/post1-html5.html b/testdata/post1-html5.html
new file mode 100644
index 0000000..aec89b8
--- /dev/null
+++ b/testdata/post1-html5.html
@@ -0,0 +1,72 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+<!-- 2019-03-13 Wed 17:46 -->
+<meta charset="utf-8">
+<meta name="viewport" content="width=device-width, initial-scale=1">
+<title>Second post</title>
+<meta name="generator" content="Org mode">
+</head>
+<body>
+<div id="content">
+<h1 class="title">Second post</h1>
+<div id="table-of-contents">
+<h2>Table of Contents</h2>
+<div id="text-table-of-contents">
+<ul>
+<li><a href="#orgcf5e277">1. Section 1</a></li>
+<li><a href="#org893ed57">2. Section 2</a></li>
+</ul>
+</div>
+</div>
+<p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+<div id="outline-container-orgcf5e277" class="outline-2">
+<h2 id="orgcf5e277"><span class="section-number-2">1</span> Section 1</h2>
+<div class="outline-text-2" id="text-1">
+<p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+<div id="outline-container-org893ed57" class="outline-2">
+<h2 id="org893ed57"><span class="section-number-2">2</span> Section 2</h2>
+<div class="outline-text-2" id="text-2">
+<p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>
+<div id="postamble" class="status">
+<p class="date">Created: 2019-03-13 Wed 17:46</p>
+<p class="validation"><a
href="http://validator.w3.org/check?uri=referer">Validate</a></p>
+</div>
+</body>
+</html>
diff --git a/testdata/post1.html b/testdata/post1.html
new file mode 100644
index 0000000..275b2c4
--- /dev/null
+++ b/testdata/post1.html
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
+"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" lang="en" xml:lang="en">
+<head>
+<!-- 2019-03-13 Wed 17:46 -->
+<meta http-equiv="Content-Type" content="text/html;charset=utf-8" />
+<meta name="viewport" content="width=device-width, initial-scale=1" />
+<title>Second post</title>
+<meta name="generator" content="Org mode" />
+</head>
+<body>
+<div id="content">
+<h1 class="title">Second post</h1>
+<div id="table-of-contents">
+<h2>Table of Contents</h2>
+<div id="text-table-of-contents">
+<ul>
+<li><a href="#orgf862c19">1. Section 1</a></li>
+<li><a href="#orgdda7921">2. Section 2</a></li>
+</ul>
+</div>
+</div>
+<p>
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+</p>
+
+<div id="outline-container-orgf862c19" class="outline-2">
+<h2 id="orgf862c19"><span class="section-number-2">1</span> Section 1</h2>
+<div class="outline-text-2" id="text-1">
+<p>
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+</p>
+</div>
+</div>
+
+<div id="outline-container-orgdda7921" class="outline-2">
+<h2 id="orgdda7921"><span class="section-number-2">2</span> Section 2</h2>
+<div class="outline-text-2" id="text-2">
+<p>
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
+</p>
+</div>
+</div>
+</div>
+<div id="postamble" class="status">
+<p class="date">Created: 2019-03-13 Wed 17:46</p>
+<p class="validation"><a
href="http://validator.w3.org/check?uri=referer">Validate</a></p>
+</div>
+</body>
+</html>
diff --git a/testdata/post1.org b/testdata/post1.org
new file mode 100644
index 0000000..879ceea
--- /dev/null
+++ b/testdata/post1.org
@@ -0,0 +1,34 @@
+#+TITLE: Second post
+
+Nullam eu ante vel est convallis dignissim. Fusce suscipit, wisi nec facilisis
+facilisis, est dui fermentum leo, quis tempor ligula erat quis odio. Nunc
porta
+vulputate tellus. Nunc rutrum turpis sed pede. Sed bibendum. Aliquam
posuere.
+Nunc aliquet, augue nec adipiscing interdum, lacus tellus malesuada massa, quis
+varius mi purus non odio. Pellentesque condimentum, magna ut suscipit
+hendrerit, ipsum augue ornare nulla, non luctus diam neque sit amet urna.
+Curabitur vulputate vestibulum lorem. Fusce sagittis, libero non molestie
+mollis, magna orci ultrices dolor, at vulputate neque nulla lacinia eros. Sed
+id ligula quis est convallis tempor. Curabitur lacinia pulvinar nibh. Nam a
+sapien.
+
+* Section 1
+
+Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Donec hendrerit
+tempor tellus. Donec pretium posuere tellus. Proin quam nisl, tincidunt et,
+mattis eget, convallis nec, purus. Cum sociis natoque penatibus et magnis dis
+parturient montes, nascetur ridiculus mus. Nulla posuere. Donec vitae dolor.
+Nullam tristique diam non turpis. Cras placerat accumsan nulla. Nullam
rutrum.
+Nam vestibulum accumsan nisl.
+
+* Section 2
+
+Pellentesque dapibus suscipit ligula. Donec posuere augue in quam. Etiam vel
+tortor sodales tellus ultricies commodo. Suspendisse potenti. Aenean in sem
ac
+leo mollis blandit. Donec neque quam, dignissim in, mollis nec, sagittis eu,
+wisi. Phasellus lacus. Etiam laoreet quam sed arcu. Phasellus at dui in
+ligula mollis ultricies. Integer placerat tristique nisl. Praesent augue.
+Fusce commodo. Vestibulum convallis, lorem a tempus semper, dui dui euismod
+elit, vitae placerat urna tortor vitae lacus. Nullam libero mauris, consequat
+quis, varius et, dictum id, arcu. Mauris mollis tincidunt felis. Aliquam
+feugiat tellus ut neque. Nulla facilisis, risus a rhoncus fermentum, tellus
+tellus lacinia purus, et dictum nunc justo sit amet elit.
diff --git a/webfeeder-test-gen.el b/webfeeder-test-gen.el
new file mode 100644
index 0000000..c31fcc3
--- /dev/null
+++ b/webfeeder-test-gen.el
@@ -0,0 +1,121 @@
+;;; Commentary:
+;; Test resources should not be generated for it might render the test suite
+;; non-reproducible. Indeed, the results of Org export depend on the version
of
+;; Org.
+;;
+;; We only use this file to bootstrap the test resources. The resources are
+;; then versioned to ensure their consistency.
+
+(require 'ox)
+(require 'webfeeder)
+(require 'webfeeder-test)
+
+;; Get rid of index.html~ and the like that pop up during generation.
+(setq make-backup-files nil)
+
+(defun webfeeder-test--export (input output)
+ (with-temp-buffer
+ (insert-file-contents input)
+ (org-export-to-file 'html output)))
+
+;; TODO: Namespace macro.
+(defmacro with-directory-excursion (dir &rest body)
+ (declare (indent defun))
+ `(progn
+ (mkdir ,dir 'parents)
+ (let ((default-directory ,default-directory))
+ (cd ,dir)
+ ,@body)))
+
+(defun webfeeder-test-gen-feeds ()
+ "Generate various feeds.
+We keep both libxml and default around to make sure our library
+can accommodate user's custom functions."
+ (with-directory-excursion webfeeder-test-dir
+ (cl-loop for (suffix builder) in '(("atom" webfeeder-make-atom)
+ ("rss" webfeeder-make-rss))
+ do
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml)
+ (prefix "libxml"))
+ (webfeeder-build (format "%s-post0.%s" prefix suffix)
+ "." "https://example.org/"
+ '("post0-html5-fancy.html")
+ :builder builder
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0))
+ (let ((webfeeder-date-function 'webfeeder-date-default)
+ (webfeeder-title-function 'webfeeder-title-default)
+ (webfeeder-body-function 'webfeeder-body-default)
+ (prefix "default"))
+ (webfeeder-build (format "%s-post0.%s" prefix suffix)
+ "." "https://example.org/"
+ '("post0-html5-fancy.html")
+ :builder builder
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml)
+ (prefix "libxml"))
+ (webfeeder-build (format "%s-post0+post1.%s" prefix suffix)
+ "." "https://example.org/"
+ '("post0-html5-fancy.html"
"post1-html5-fancy.html")
+ :builder builder
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml)
+ (prefix "libxml"))
+ (webfeeder-build (format "%s-post1.%s" prefix suffix)
+ "." "https://example.org/"
+ '("post0-html5-fancy.html"
"post1-html5-fancy.html")
+ :builder builder
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0
+ :max-entries 1))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml)
+ (prefix "libxml"))
+ (webfeeder-build (format "%s-post0-no-html.%s" prefix suffix)
+ "." "https://example.org/"
+ '("post0.html")
+ :builder builder
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml)
+ (prefix "libxml"))
+ (webfeeder-build (format "%s-post0-no-fancy.%s" prefix suffix)
+ "." "https://example.org/"
+ '("post0-html5.html")
+ :builder builder
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0)))))
+
+(defun webfeeder-test-gen ()
+ (with-directory-excursion webfeeder-test-dir
+ (dolist (post '("post0" "post1"))
+ (let ((org-input (format "%s.org" post)))
+ (let ((org-html-head-include-default-style nil)
+ (org-html-head-include-scripts nil))
+ (webfeeder-test--export org-input (format "%s.html" post)))
+ (let ((org-html-head-include-default-style nil)
+ (org-html-head-include-scripts nil)
+ (org-html-doctype "html5"))
+ (webfeeder-test--export org-input (format "%s-html5.html" post)))
+ (let ((org-html-head-include-default-style nil)
+ (org-html-head-include-scripts nil)
+ (org-html-doctype "html5")
+ (org-html-html5-fancy t))
+ (webfeeder-test--export org-input (format "%s-html5-fancy.html"
post)))))))
diff --git a/webfeeder-test.el b/webfeeder-test.el
new file mode 100644
index 0000000..1966b91
--- /dev/null
+++ b/webfeeder-test.el
@@ -0,0 +1,198 @@
+(require 'ert)
+
+(add-to-list 'load-path ".")
+(require 'webfeeder)
+(require 'diff)
+(require 'cl-lib)
+
+(defvar webfeeder-test-dir "testdata")
+
+(defun webfeeder--file-to-string (file)
+ "Return the file content as string."
+ (with-temp-buffer
+ (insert-file-contents file)
+ (buffer-string)))
+
+(defun webfeeder--string=-explainer (string-a string-b)
+ "Return the diff output of STRING-A and STRING-B"
+ (unless (string= string-a string-b)
+ (let (file-a file-b)
+ (unwind-protect
+ (let (result)
+ (setq file-a (make-temp-file "webfeeder")
+ file-b (make-temp-file "webfeeder"))
+ (with-temp-file file-a
+ (insert string-a))
+ (with-temp-file file-b
+ (insert string-b))
+ (setq result
+ (with-temp-buffer
+ ;; The following generates a *Diff* buffer which is
+ ;; convenient for coloration.
+ (diff file-a file-b nil 'no-async)
+ (diff-no-select file-a file-b nil 'no-async
(current-buffer))
+ (buffer-string)))
+ result)
+ (delete-file file-a)
+ (delete-file file-b)))))
+
+(put 'string= 'ert-explainer 'webfeeder--string=-explainer)
+
+;; TODO: Make private.
+(defun webfeeder-test-pages (feed html-files
+ &optional builder max-entries)
+ (setq builder (or builder 'webfeeder-make-atom))
+ (let* ((feed-buffer (webfeeder--file-to-string feed))
+ (feed-items (webfeeder-html-files-to-items "." "https://example.org/"
+ html-files)))
+ (should
+ (string=
+ feed-buffer
+ (funcall builder feed "https://example.org/" feed-items
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0
+ :max-entries max-entries)))
+ (should-not
+ (string=
+ feed-buffer
+ (funcall builder feed "https://example.org/" feed-items
+ :title "Example TYPO"
+ :description "Example description"
+ :build-date 0
+ :max-entries max-entries)))
+ (should-not
+ (string=
+ feed-buffer
+ (funcall builder feed "https://example.XYZ/" feed-items
+ :title "Example feed"
+ :description "Example description"
+ :build-date 0
+ :max-entries max-entries)))
+ (should-not
+ (string=
+ feed-buffer
+ (funcall builder feed "https://example.org/" feed-items
+ :title "Example feed"
+ :description "Example description TYPO"
+ :build-date 0
+ :max-entries max-entries)))))
+
+;; TODO: Rename "page" to "rss".
+(ert-deftest webfeeder-single-page-libxml ()
+ "Simple test using libxml backend.
+This requires an Emacs compiled against libxml."
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0.rss" '("post0-html5-fancy.html")
+ 'webfeeder-make-rss))))
+
+(ert-deftest webfeeder-single-page-default ()
+ "Simple test using regular expressions to parse XML."
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-default)
+ (webfeeder-title-function 'webfeeder-title-default)
+ (webfeeder-body-function 'webfeeder-body-default))
+ (webfeeder-test-pages "default-post0.rss" '("post0-html5-fancy.html")
+ 'webfeeder-make-rss))))
+
+(ert-deftest webfeeder-multi-page-libxml ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0+post1.rss" '("post0-html5-fancy.html"
+
"post1-html5-fancy.html")
+ 'webfeeder-make-rss))))
+
+(ert-deftest webfeeder-limited-multi-rss-libxml ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post1.rss" '("post0-html5-fancy.html"
+ "post1-html5-fancy.html")
+ 'webfeeder-make-rss 1))))
+
+(ert-deftest webfeeder-single-page-no-html5 ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0-no-html.rss" '("post0.html")
+ 'webfeeder-make-rss))))
+
+(ert-deftest webfeeder-single-page-no-fancy ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0-no-fancy.rss" '("post0-html5.html")
+ 'webfeeder-make-rss))))
+
+;; Atom tests.
+(ert-deftest webfeeder-single-atom-libxml ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0.atom" '("post0-html5-fancy.html")
+ 'webfeeder-make-atom))))
+
+(ert-deftest webfeeder-single-atom-default ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-default)
+ (webfeeder-title-function 'webfeeder-title-default)
+ (webfeeder-body-function 'webfeeder-body-default))
+ (webfeeder-test-pages "default-post0.atom" '("post0-html5-fancy.html")
+ 'webfeeder-make-atom))))
+
+(ert-deftest webfeeder-multi-atom-libxml ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0+post1.atom"
'("post0-html5-fancy.html"
+
"post1-html5-fancy.html")
+ 'webfeeder-make-atom))))
+
+(ert-deftest webfeeder-limited-multi-atom-libxml ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post1.atom" '("post0-html5-fancy.html"
+ "post1-html5-fancy.html")
+ 'webfeeder-make-atom 1))))
+
+(ert-deftest webfeeder-single-atom-no-html5 ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0-no-html.atom" '("post0.html")
+ 'webfeeder-make-atom))))
+
+(ert-deftest webfeeder-single-atom-no-fancy ()
+ (cl-assert (file-directory-p webfeeder-test-dir))
+ (let ((default-directory (expand-file-name webfeeder-test-dir
default-directory)))
+ (let ((webfeeder-date-function 'webfeeder-date-libxml)
+ (webfeeder-title-function 'webfeeder-title-libxml)
+ (webfeeder-body-function 'webfeeder-body-libxml))
+ (webfeeder-test-pages "libxml-post0-no-fancy.atom" '("post0-html5.html")
+ 'webfeeder-make-atom))))
+
+(provide 'webfeeder-test)
diff --git a/webfeeder.el b/webfeeder.el
new file mode 100644
index 0000000..0dcefd2
--- /dev/null
+++ b/webfeeder.el
@@ -0,0 +1,484 @@
+;;; webfeeder.el --- Build RSS and Atom webfeeds from HTML files -*-
lexical-binding: t -*-
+
+;; Copyright (C) 2018, 2019 Pierre Neidhardt <address@hidden>
+
+;; Author: Pierre Neidhardt <address@hidden>
+;; Maintainer: Pierre Neidhardt <address@hidden>
+;; URL: https://gitlab.com/Ambrevar/emacs-webfeeder
+;; Version: 0.0.1
+;; Package-Requires: ((emacs "25.1"))
+;; Keywords: news, hypermedia, blog, feed, rss, atom
+
+;; This file is not part of GNU Emacs.
+
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+;;; Commentary:
+;;
+;; The entry point is `webfeeder-build': run it over a set of HTML files to
+;; produce the corresponding webfeed.
+;;
+;; See https://validator.w3.org/feed/ for an online validation service.
+
+;;; Code:
+
+(require 'rx)
+(require 'subr-x)
+(require 'dom)
+(require 'shr) ; TODO: Only with libxml?
+(require 'cl-lib)
+
+(defun webfeeder-has-libxml-p ()
+ (fboundp 'libxml-parse-html-region))
+
+(defvar webfeeder-author-function (if (webfeeder-has-libxml-p)
+ 'webfeeder-author-libxml
+ 'webfeeder-author-default)
+ "Function to fetch the author from an HTML file.")
+
+(defvar webfeeder-date-function (if (webfeeder-has-libxml-p)
+ 'webfeeder-date-libxml
+ 'webfeeder-date-default)
+ "Function to fetch the date from an HTML file.")
+
+(defvar webfeeder-title-function (if (webfeeder-has-libxml-p)
+ 'webfeeder-title-libxml
+ 'webfeeder-title-default)
+ "Function to fetch the title from an HTML file.")
+
+(defvar webfeeder-subtitle-function (if (webfeeder-has-libxml-p)
+ 'webfeeder-subtitle-libxml
+ 'webfeeder-subtitle-default)
+ "Function to fetch the subtitle from an HTML file.")
+
+(defvar webfeeder-body-function (if (webfeeder-has-libxml-p)
+ 'webfeeder-body-libxml
+ 'webfeeder-body-default)
+ "Function to fecth the HTML body.
+This can be customized to choose which part to include.")
+
+(defvar webfeeder-categories-function 'ignore
+ "Function to fecth the categories from the HTML.")
+
+(defvar webfeeder-generator-function (if (webfeeder-has-libxml-p)
+ 'webfeeder-generator-libxml
+ 'webfeeder-generator-default)
+ "Function to fetch the generator from an HTML file.")
+
+(defun webfeeder-author-default (html-file)
+ "Return the author from the HTML file."
+ (let ((case-fold-search t))
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (goto-char (point-min))
+ (search-forward-regexp (rx line-start "<meta name=\"author\" content=\""
(group (* (not (any "\"")))) "\""))
+ (match-string 1))))
+
+(defun webfeeder-author-libxml (html-file)
+ "Return the author from the HTML file.
+This uses libxml to parse."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ (meta-tags (dom-by-tag dom 'meta)))
+ (cl-loop for (_meta ((_ . name-value) (_ . content-value))) in meta-tags
+ when (string= name-value "author")
+ return content-value))))
+
+(defun webfeeder-date-default (html-file)
+ "Return the date from the HTML file.
+The date is returned as time value. See `current-time-string'."
+ (let ((case-fold-search t))
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (goto-char (point-min))
+ ;; TODO: Try with proper Org date.
+ (search-forward-regexp (rx line-start "<!-- " (group (* any)) " -->"))
+ (if (match-string 1)
+ (date-to-time
+ (concat (match-string 1) " DummyDateSuffix"))
+ 0))))
+
+(defun webfeeder-date-libxml (html-file)
+ "Return the date from the HTML file.
+The date is returned as time value. See `current-time-string'.
+This uses libxml to parse."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ (date (dom-text (car (dom-by-class dom "date")))))
+ (date-to-time
+ (concat (or (and date
+ (string-match (rx (group (repeat 4 digit) "-" (repeat
2 digit) "-" (repeat 2 digit)))
+ date)
+ (match-string 1 date))
+ ;; Org publish adds a first comment with the timestamp.
+ (dom-text (car (dom-by-tag dom 'comment))))
+ " DummyDateSuffix")))))
+
+(defun webfeeder-title-default (html-file)
+ "Return the title from the HTML file."
+ (let ((case-fold-search t))
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (goto-char (point-min))
+ (search-forward-regexp (rx line-start "<title>" (group (* (not (any
"<")))) "</title>"))
+ (match-string 1))))
+
+(defun webfeeder-title-libxml (html-file)
+ "Return the title from the HTML file.
+This uses libxml to parse."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ (title (dom-text (car (dom-by-tag dom 'title)))))
+ (if (string= "" title)
+ nil
+ title))))
+
+(defun webfeeder-subtitle-default (html-file)
+ "Return the subtitle from the HTML file."
+ (let ((case-fold-search t))
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (goto-char (point-min))
+ (search-forward-regexp (rx line-start "<span class=\"subtitle\">" (group
(* (not (any "<")))) "</span>"))
+ (match-string 1))))
+
+(defun webfeeder-subtitle-libxml (html-file)
+ "Return the subtitle from the HTML file.
+This uses libxml to parse."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ (subtitle (dom-text (car (dom-by-class dom "subtitle")))))
+ (if (string= "" subtitle)
+ nil
+ subtitle))))
+
+;; (insert (webfeeder-body-libxml
"/home/ambrevar/projects/ambrevar.gitlab.io/webfeeder/post0-html5-fancy.html"))
+(defun webfeeder-body-libxml (html-file &optional _url exclude-toc)
+ "Return the HTML body as a string.
+Relative links are made absolute to URL.
+If EXCLUDE-TOC is non-nil, the table-of-contents is not included in the body."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ content)
+ (when exclude-toc
+ (let ((toc (or (dom-by-tag dom 'nav)
+ ;; <nav> is only in HTML5.
+ (dom-by-id dom "table-of-contents"))))
+ (dom-remove-node dom (car toc))))
+ (let ((title (or (dom-by-tag dom 'header)
+ ;; The <header> is "fancy" HTML (as per Org
designation).
+ (dom-by-class dom "title"))))
+ (dom-remove-node dom (car title)))
+ (setq content (car (dom-by-id dom "content")))
+ (shr-dom-to-xml content))))
+
+(defun webfeeder-body-default (html-file &optional url exclude-toc)
+ "Return the HTML body as a string.
+Relative links are made absolute to URL.
+If EXCLUDE-TOC is non-nil, the table-of-contents is not included in the body."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ ;; TODO: Move to helper function.
+ ;; Better: See `org-html-link-use-abs-url'.
+ (goto-char (point-min))
+ (while (re-search-forward (rx "href=\"" (group (* (not (any "\"")))) "\"")
nil t)
+ ;; Make relative links absolute.
+ (let ((match (match-string 1)))
+ (unless (string-match "://" match)
+ (goto-char (match-beginning 1))
+ (insert (concat (replace-regexp-in-string "/*$" "" url) "/"))
+ (goto-char (match-end 0)))))
+ (buffer-substring-no-properties
+ (progn
+ (goto-char (point-min))
+ (unless (and exclude-toc
+ (search-forward "</nav>" nil 'noerror))
+ (goto-char (point-min))
+ (search-forward "</header>"))
+ (point))
+ (progn
+ (goto-char (point-max))
+ (search-backward "<div id=\"postamble\"")
+ (point)))))
+
+
+(defun webfeeder-generator-default (html-file)
+ "Return the generator from the HTML file."
+ (let ((case-fold-search t))
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (goto-char (point-min))
+ (search-forward-regexp (rx line-start "<meta name=\"generator\"
content=\"" (group (* (not (any "\"")))) "\""))
+ (match-string 1))))
+
+(defun webfeeder-generator-libxml (html-file)
+ "Return the generator from the HTML file.
+This uses libxml to parse."
+ (with-temp-buffer
+ (insert-file-contents html-file)
+ (let* ((dom (libxml-parse-html-region (point-min) (point-max)))
+ (meta-tags (dom-by-tag dom 'meta)))
+ (cl-loop for (_meta ((_ . name-value) (_ . content-value))) in meta-tags
+ when (string= name-value "generator")
+ return content-value))))
+
+(defun webfeeder--date-to-rfc822 (date)
+ (format-time-string "%a, %d %b %Y %H:%M:%S %z" date))
+
+(defun webfeeder--date-to-rfc3339 (date)
+ (format-time-string "%FT%T%z" date))
+
+(defun webfeeder-item-to-rss (item)
+ "Return an RSS ITEM as a string.
+The item date is set to epoch if the item date is nil."
+ (concat
+ "<item>\n"
+ (when (webfeeder-item-author item)
+ (concat " <author>" (webfeeder-item-author item) "</author>\n"))
+ " <title>" (webfeeder-item-title item) "</title>\n"
+ (when (webfeeder-item-subtitle item)
+ (concat " <comments>" (webfeeder-item-subtitle item) "</comments>\n"))
+ " <description><![CDATA[" (webfeeder-item-body item) "]]></description>\n"
+ (when (webfeeder-item-categories item)
+ (mapconcat (lambda (cat) (concat " <category>" cat "</category>"))
+ (webfeeder-item-categories item)
+ "\n"))
+ " <link>" (webfeeder-item-url item) "</link>\n"
+ (format " <guid isPermaLink=\"false\">%s</guid>\n" (webfeeder-item-url
item))
+ " <pubDate>"
+ (webfeeder--date-to-rfc822 (or (webfeeder-item-date item) 0))
+ "</pubDate>\n"
+ "</item>\n"))
+
+(defun webfeeder-item-to-atom (item)
+ "Return an atom ITEM as a string.
+The item date is set to epoch if the item date is nil."
+ (concat
+ "<entry>\n"
+ " <title>" (webfeeder-item-title item) "</title>\n"
+ (when (webfeeder-item-author item)
+ (concat " <author><name>" (webfeeder-item-author item)
"</name></author>\n"))
+ (when (webfeeder-item-subtitle item)
+ (concat " <summary>" (webfeeder-item-subtitle item) "</summary>\n"))
+ ;; TODO: Pros and cons if we could pass a "type" item to specify HTML or
+ ;; XHTML and remove CDATA?
+ ;; " <content type=\"xhtml\"><![CDATA["
+ " <content><![CDATA["
+ (webfeeder-item-body item)
+ "]]></content>\n"
+ (when (webfeeder-item-categories item)
+ (mapconcat (lambda (cat) (concat " <category>" cat "</category>"))
+ (webfeeder-item-categories item)
+ "\n"))
+ " <link>" (webfeeder-item-url item) "</link>\n"
+ " <id>" (webfeeder-item-url item) "</id>\n"
+ " <updated>"
+ (webfeeder--date-to-rfc3339 (or (webfeeder-item-date item) 0))
+ "</updated>\n"
+ "</entry>\n"))
+
+;; TODO: Set constructor?
+(cl-defstruct webfeeder-item
+ author
+ (date 0)
+ title
+ subtitle
+ body
+ url
+ categories
+ generator)
+
+;;;###autoload
+(defun webfeeder-html-files-to-items (project-dir url html-files)
+ "Parse the source HTML-FILES located in PROJECT-DIR and set to be hosted at
URL.
+PROJECT-DIR is where HTML files are also assumed to reside.
+PROJECT-DIR is the local root of the website hosted at URL.
+HTML parsing details can be customized through the following
+variables:
+- `webfeeder-author-function'
+- `webfeeder-date-function'
+- `webfeeder-title-function'
+- `webfeeder-subtitle-function'
+- `webfeeder-body-function'.
+- `webfeeder-categories-function'.
+- `webfeeder-generator-function'."
+ (cl-loop for html-file in html-files
+ for dest = (expand-file-name html-file project-dir)
+ for feed-url = (concat (replace-regexp-in-string "/*$" "" url) "/"
html-file)
+ for feed-author = (funcall webfeeder-author-function dest)
+ for feed-date = (or (funcall webfeeder-date-function
+ (expand-file-name html-file
project-dir))
+ 0)
+ for feed-title = (or (funcall webfeeder-title-function dest)
feed-url)
+ for feed-subtitle = (funcall webfeeder-subtitle-function dest)
+ for feed-body = (funcall webfeeder-body-function dest feed-url
'exclude-toc)
+ for feed-categories = (funcall webfeeder-categories-function dest)
+ for feed-generator = (funcall webfeeder-generator-function dest)
+ collect (make-webfeeder-item :url feed-url
+ :author feed-author
+ :date feed-date
+ :title feed-title
+ :subtitle feed-subtitle
+ :body feed-body
+ :categories feed-categories
+ :generator feed-generator)))
+
+;;;###autoload
+(cl-defun webfeeder-make-rss (webfeed url feed-items
+ &key title description
+ author generator
+ build-date predicate max-entries
+ &allow-other-keys)
+ "Return a webfeed string in RSS format that contains every FEED-ITEMS.
+
+WEBFEED is the path where the feed is intended to be stored,
+relative to URL.
+
+A feed can have a TITLE and DESCRIPTION: if not, the URL will be
+used.
+
+When BUILD-DATE is nil, use `current-time'. Otherwise it can be
+a time expression as in `current-time'. 0 means EPOCH.
+
+When provided, FEED-ITEMS are only added if (PREDICATE FEED-ITEM)
+returns non-nil.
+
+The number of items is limited to MAX-ENTRIES. When nil, all
+items are included.
+
+FEED-ITEMS can be generated with `webfeeder-html-files-to-items'."
+ (setq title (or title url))
+ (with-temp-buffer
+ (insert "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
+ "<rss version=\"2.0\"
xmlns:atom=\"http://www.w3.org/2005/Atom\">\n"
+ "<channel>\n"
+ (if author
+ (concat "<author><name>" author "</name></author>\n")
+ "")
+ "<title>" title "</title>\n"
+ "<description>" (or description title) "</description>\n"
+ ;; TODO: Change generator name?
+ (concat "<generator>" (or generator "Emacs webfeeder.el")
"</generator>\n")
+ "<link>" url "</link>\n"
+ (format "<atom:link href=\"%s/%s\" rel=\"self\"
type=\"application/rss+xml\"/>\n"
+ (string-trim-right url "/") webfeed)
+ "<lastBuildDate>" (webfeeder--date-to-rfc822 (or build-date
(current-time)))
+ "</lastBuildDate>\n")
+ (cl-loop with sorted-item-list = (sort feed-items
+ (lambda (x y)
+ (time-less-p (webfeeder-item-date
y)
+ (webfeeder-item-date
x))))
+ repeat (or max-entries (length sorted-item-list))
+ for item in sorted-item-list
+ do (when (or (not predicate) (funcall predicate item))
+ (insert (webfeeder-item-to-rss item))))
+ (insert "</channel>\n"
+ "</rss>\n")
+ ;; TODO: Return buffer and not string?
+ (buffer-string)))
+
+;;;###autoload
+(cl-defun webfeeder-make-atom (webfeed url feed-items
+ &key title subtitle description
+ author generator
+ build-date predicate max-entries
+ &allow-other-keys)
+ "Return a webfeed string in Atom format that contains every FEED-ITEMS.
+
+WEBFEED is the path where the feed is intended to be stored,
+relative to URL.
+
+A feed can have a TITLE and DESCRIPTION: if not, the URL will be
+used.
+
+When BUILD-DATE is nil, use `current-time'. Otherwise it can be
+a time expression as in `current-time'. 0 means EPOCH.
+
+When provided, FEED-ITEMS are only added if (PREDICATE FEED-ITEM)
+returns non-nil.
+
+The number of items is limited to MAX-ENTRIES. When nil, all
+items are included.
+
+FEED-ITEMS can be generated with `webfeeder-html-files-to-items'."
+ (setq title (or title url))
+ (with-temp-buffer
+ (let ((path (concat (string-trim-right url "/") "/" webfeed)))
+ (insert "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
+ "<feed xmlns=\"http://www.w3.org/2005/Atom\">"
+ (if author
+ (concat "<author><name>" author "</name></author>\n")
+ "")
+ "<title>" title "</title>\n"
+ (if subtitle
+ (concat "<subtitle>" subtitle "</subtitle>\n")
+ "")
+ "<summary>" (or description title) "</summary>\n"
+ ;; TODO: Change generator name?
+ (concat "<generator>" (or generator "Emacs webfeeder.el")
"</generator>\n")
+ "<link href=\"" url "\">\n"
+ (format "<link href=\"%s\" rel=\"self\"/>\n"
+ path)
+ ;; REVIEW: Use UUID?
+ "<id>" path "</id>\n"
+ ;; TODO: Publishing date? Org create two "date" classes, not
+ ;; really distinguishable.
+ "<updated>" (webfeeder--date-to-rfc3339 (or build-date
(current-time)))
+ "</updated>\n"))
+ (cl-loop with sorted-item-list = (sort feed-items
+ (lambda (x y)
+ (time-less-p (webfeeder-item-date
y)
+ (webfeeder-item-date
x))))
+ repeat (or max-entries (length sorted-item-list))
+ for item in sorted-item-list
+ do (when (or (not predicate) (funcall predicate item))
+ (insert (webfeeder-item-to-atom item))))
+ (insert "</feed>\n")
+ (buffer-string)))
+
+;;;###autoload
+(cl-defun webfeeder-build (webfeed project-dir url html-files
+ &key title subtitle description
+ author generator
+ build-date predicate max-entries
+ (builder 'webfeeder-make-atom))
+ "Build a WEBFEED out of HTML-FILES.
+The WEBFEED is an XML file that contains every blog post in a
+machine-readable format.
+
+The WEBFEED file is stored in PROJECT-DIR where HTML-FILES are
+also assumed to reside.
+
+For more details on the other arguments, see
+`webfeeder-make-atom', `webfeeder-make-rss' and
+`webfeeder-html-files-to-items'."
+ (let ((feed-items (webfeeder-html-files-to-items project-dir url
html-files)))
+ (with-temp-file (expand-file-name webfeed project-dir)
+ (insert (funcall builder webfeed url feed-items
+ :author author
+ :title title
+ :subtitle subtitle
+ :description description
+ :generator generator
+ :build-date build-date
+ :predicate predicate
+ :max-entries max-entries)))))
+
+(provide 'webfeeder)
+;;; webfeeder.el ends here
- [elpa] externals/webfeeder b5148b4 22/22: Version 1.0.0, (continued)
- [elpa] externals/webfeeder b5148b4 22/22: Version 1.0.0, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 272bad4 02/22: webfeeder-test.el: Privatize -test-pages, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 9083513 21/22: Assign copyright to the Free Software Foundation, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 0f0ca1d 09/22: Atom: Fix missing closing tag in <link />, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 6e0a8d5 12/22: Fall back on default author set in webfeeder-default-author, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder a7cfbf1 11/22: Atom: Separate time with ":" in rfc3339, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 567fbe3 13/22: Atom: Always href attribute for links, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder e462414 19/22: testdata/post0.org: Add email address, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder b1986c3 15/22: Atom: Don't test top-level descriptions, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 26f5200 20/22: Update test feeds, Pierre Neidhardt, 2019/03/26
- [elpa] externals/webfeeder 7000480 01/22: Init,
Pierre Neidhardt <=