Command line XML beautifier and content extractor. Similar to jq.
A simple way to install the utility is to use the curl and bash installer.
For macOS:
curl -sSL https://git.io/JXZHK | bash
For Linux:
curl -sSL https://git.io/JXZHK | sudo bash
If you have Go toolchain installed, you can use the following command to install xq:
go install github.com/sibprogrammer/xq@latest
Small thing I noticed, for HTML multiline comments the first line gets indented, the other lines stay. Maybe multiline comments should be ignored
raw
<body>
<!--
<p>hello</p>
-->
<p>world</p>
</body>
formatted
<body>
<!--
<p>hello</p>
-->
<p>world</p>
</body>
With file.html with content:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
</head>
<body>
<p><b>blah</b> (blah)</p>
</body>
</html>
$ xq -m file.html | grep blah
<b>blah</b>(blah)</p>
Note the space is removed between the closing b tag and the opening bracket. This changes the meaning of the content.
Input:
<?xml version="1.0" encoding="UTF-8"?>
<iris1:request xmlns:iris1="urn:ietf:params:xml:ns:iris1">
<iris1:searchSet>
<iris1:lookupEntity registryType="dchk1" entityClass="domain-name" entityName="ficora.fi"/>
</iris1:searchSet>
</iris1:request>
Output:
<?xml version="1.0" encoding="UTF-8"?>
<request iris1="urn:ietf:params:xml:ns:iris1">
<searchSet>
<lookupEntity registryType="dchk1" entityClass="domain-name" entityName="ficora.fi">
</lookupEntity>
</searchSet>
</request>
Sample xml:
<?xml version="1.0" encoding="windows-1251"?>
<xml></xml>
./xq test.xml produces error Error: xml: encoding "windows-1251" declared but Decoder.CharsetReader is nil
The XPath query language is less popular and more verbose compared to CSS selectors.
It is possible to query content using a CSS selector.
The corresponding thread: https://news.ycombinator.com/item?id=33573240
Right now one needs to specify -m flag if HTML input is provided instead of XML. It seems it's possible to implement heuristic algorithm to autodetect the input type.
Autodetection of content type is implemented. No need to provide -m flag in most cases.
It's quite helpful to highlight HTML content, but usually this content is not a valid XML.
An ability to highlight HTML is introduced.
Under certain circumstances, the only formatted output is needed without syntax highlighting. E.g. the terminal does not support colors.
An option to disable the colorful output is introduced.
xq --no-color ./test/data/formatted.xml
The way to extract only a single node using XPath is not so obvious and requires additional typing. Usually, I needed in the first node of the set.
A shortcut to extract only the first node. Here is an example:
cat file.xml | xq -e //item/title
The output will contain the first match of the XPath expression.
Workaround 1:
cat file.xml | xq -x "(//item/title)[1]"
Workaround 2:
cat file.xml | xq -x "//item/title" | head -1
If "less" is defined as $PAGER the control character escape sequences are rendered instead of colors on Linux. Due to unclear reasons, there is no such problem with macOS.
# export PAGER=less ; curl -s https://www.w3schools.com/xml/note.xml | xq
ESC[33m<?ESC[0mxml version="1.0" encoding="UTF-8"ESC[33m?>ESC[0m
ESC[33m<noteESC[0mESC[33m>ESC[0m
ESC[33m<toESC[0mESC[33m>ESC[0mToveESC[33m</to>ESC[0m
ESC[33m<fromESC[0mESC[33m>ESC[0mJaniESC[33m</from>ESC[0m
ESC[33m<headingESC[0mESC[33m>ESC[0mReminderESC[33m</heading>ESC[0m
ESC[33m<bodyESC[0mESC[33m>ESC[0mDon't forget me this weekend!ESC[33m</body>ESC[0m
ESC[33m</note>ESC[0m
The colorful output is expected.
The attribute values in processing instructions are not highlighted.
The example of PI
<?xml version="1.0" encoding="UTF-8"?>
It is expected that values like "1.0" and "UTF-8" are highlighted (similar to other attributes processing).
The utility fails on the attempt to render XML version 1.1.
xq xml-file.xml
Where xml-file.xml contains the following content:
<?xml version='1.1' encoding='UTF-8'?>
<Tag plugin="[email protected]">
<node class="cps.n.StepStartNode" plugin="[email protected]">
<parentIds>
<string>17</string>
</parentIds>
<id>18</id>
<descriptorId>org.jenkinsci.plugins.pipeline.modeldefinition.steps.ScriptStep</descriptorId>
</node>
<actions>
<s.a.LogStorageAction/>
<wf.a.TimingAction plugin="[email protected]">
<startTime>1643040131437</startTime>
</wf.a.TimingAction>
</actions>
</Tag>
Error message saying:
xml: unsupported version "1.1"; only version 1.0 is supported
The file is rendered properly.
One of the sources of such files is Jenkins.
For Linux system that supports snap it is more safe and convenient to use it instead of "curl + bash" combination.
Snap package for xq is prepared.
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