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[bug#29902] [PATCH] gnu: Add html-xml-utils.

From: Stefan Reichör
Subject: [bug#29902] [PATCH] gnu: Add html-xml-utils.
Date: Sun, 31 Dec 2017 09:22:52 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Hi Catonano!

Thanks for your review.

> Hi Stefan !
> Thanks for contributing !
> I linted your patch and I get
> gnu/packages/xml.scm:1120:1: address@hidden: line 1153 is way too long
> (96 characters)

I fixed this.

> Also, I couldn't run
> ./pre-inst-env guix build --rounds=2 html-xml-utils
> it just returns the store item as I had already built it without thinking
> :-/
> Apart from this, I'd say it's ok
> It builds. I didn't try to run any of these commands.
> Can you suggest me a command line and a set of html files to test them ?

I am not aware of a lot of documentation with examples for these tools.

Here is some stuff I found on the web:

This is a command line that I use to extract links from h2 elements:
cat ~/tmp/document.html | hxnormalize -x | hxselect -i h2 | hxwls

> Well this is just to be super scrupolous, anyway. If you say this works, I
> believe you
> So, as far as I'm concerned: lgtm !

Below is the corrected patch (I added the missing copyright line as well)

* gnu/packages/xml.scm (html-xml-utils): New variable.
 gnu/packages/xml.scm |   56 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/gnu/packages/xml.scm b/gnu/packages/xml.scm
index 344d7c3..548cd1a 100644
--- a/gnu/packages/xml.scm
+++ b/gnu/packages/xml.scm
@@ -18,6 +18,7 @@
 ;;; Copyright © 2017 Gregor Giesen <address@hidden>
 ;;; Copyright © 2017 Alex Vong <address@hidden>
 ;;; Copyright © 2017 Petter <address@hidden>
+;;; Copyright © 2017 Stefan Reichör <address@hidden>
 ;;; This file is part of GNU Guix.
@@ -1116,6 +1117,61 @@ match and extract data, and elements can be added, 
deleted or modified using
 XSLT and EXSLT.")
    (license license:x11)))
+(define-public html-xml-utils
+ (package
+   (name "html-xml-utils")
+   (version "7.4")
+   (source
+    (origin
+      (method url-fetch)
+      (uri (string-append
+            "";
+            version ".tar.gz"))
+      (sha256
+       (base32
+        "04pgrahsfawnzd9pilvirs05pfdgsd7qwvw4dvkb42rgybhw6h95"))))
+   (build-system gnu-build-system)
+   (home-page "";)
+   (synopsis "Command line utilities to manipulate HTML and XML files")
+   (description "HTML-XML-utils provides a number of simple utilities for
+manipulating and converting HTML and XML files in various ways.  The suite
+consists of the following tools:
+ @item @command{asc2xml} convert from @code{UTF-8} to @code{&#nnn;} entities
+ @item @command{xml2asc} convert from @code{&#nnn;} entities to @code{UTF-8}
+ @item @command{hxaddid} add IDs to selected elements
+ @item @command{hxcite} replace bibliographic references by hyperlinks
+ @item @command{hxcite} mkbib - expand references and create bibliography
+ @item @command{hxclean} apply heuristics to correct an HTML file
+ @item @command{hxcopy} copy an HTML file while preserving relative links
+ @item @command{hxcount} count elements and attributes in HTML or XML files
+ @item @command{hxextract} extract selected elements
+ @item @command{hxincl} expand included HTML or XML files
+ @item @command{hxindex} create an alphabetically sorted index
+ @item @command{hxmkbib} create bibliography from a template
+ @item @command{hxmultitoc} create a table of contents for a set of HTML files
+ @item @command{hxname2id} move some @code{ID=} or @code{NAME=} from A elements
+       to their parents
+ @item @command{hxnormalize} pretty-print an HTML file
+ @item @command{hxnsxml} convert output of hxxmlns back to normal XML
+ @item @command{hxnum} number section headings in an HTML file
+ @item @command{hxpipe} convert XML to a format easier to parse with Perl or 
+ @item @command{hxprintlinks} number links and add table of URLs at end of an 
HTML file
+ @item @command{hxprune} remove marked elements from an HTML file
+ @item @command{hxref} generate cross-references
+ @item @command{hxselect} extract elements that match a (CSS) selector
+ @item @command{hxtoc} insert a table of contents in an HTML file
+ @item @command{hxuncdata} replace CDATA sections by character entities
+ @item @command{hxunent} replace HTML predefined character entities to 
+ @item @command{hxunpipe} convert output of pipe back to XML format
+ @item @command{hxunxmlns} replace \"global names\" by XML Namespace prefixes
+ @item @command{hxwls} list links in an HTML file
+ @item @command{hxxmlns} replace XML Namespace prefixes by \"global names\"
address@hidden itemize
+   (license license:expat)))
 (define-public xlsx2csv
     (name "xlsx2csv")

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