XML
Reading a SOAP Response and Pulling the Fields You Need
Pull records out of a SOAP response with lxml: mixed-namespace children, xsi:nil, empty versus absent, repeated nodes and exact decimals.
6 min read
Library
Everything you need to level up your coding skills.
XML
Choosing Between XSLT XQuery and a Script for XML Jobs
The same grouping job in XSLT 1.0, XSLT 2.0, XQuery and Python gave the same revenue to the cent. How the four compare on speed, length, exactness and fit.
6 min read
XML
XQuery Basics With BaseX Using FLWOR on XML Files Fast
Query XML with XQuery in BaseX: for, let, where, order by and return, group by with exact decimals, and element constructors, on two sample files.
6 min read
XML
Running XSLT in Python With lxml and What It Reports
Compile a stylesheet once with lxml, pass parameters safely, read xsl:message from the error log, block file and network reads, and know the 1.0 limit.
7 min read
XML
Passing Parameters Into an XSLT Stylesheet Without Surprises
Pass values into XSLT from xsltproc and lxml, and see why a param that looks like a string is read as an XPath expression and silently ignored.
6 min read
XML
Sorting and Filtering XML With XSLT and the Text Sort Trap
Sort with xsl:sort and filter with XPath predicates in XSLT, and avoid the default text sort that put 250000 after 44.00 and 29.50. Multiple keys and case.
6 min read
XML
Grouping Records With XSLT 2 and Muenchian Keys Compared
Group 20,000 invoices by currency with a Muenchian key in XSLT 1.0 and with for-each-group in XSLT 2.0 on Saxon, with sums, counts and timings.
6 min read
XML
XSLT Basics With Templates Match and Apply Templates
How an XSLT processor decides what to run: template match patterns, apply-templates, the built-in rules that dump text, modes, and the identity template.
6 min read
JSON
Using JSON in Bash Scripts Safely With jq Arguments
Build and read JSON in Bash without breaking: jq --arg instead of string concatenation, newlines in values, exit codes, null as text and filter injection.
7 min read
JSON
Reading JSON in Ruby With the json Gem and Its Options
JSON.parse in Ruby 3.4 with json 2.9.1: symbolized keys, big numbers, NaN, comments that parse by default, max_nesting 100, create_additions and errors.
6 min read
JSON
Reading JSON in PHP With json decode and Throw on Error
json_decode in PHP 8.5 returns null on bad input unless you throw. Arrays or objects, big integers, depth 512, flags and the list versus object trap.
6 min read
JSON
Reading JSON in Rust With serde json and Typed Structs
Read JSON in Rust with serde_json 1.0.154: derived structs, Option and null, deny_unknown_fields, duplicates, integer ranges, the 128 level limit and enums.
6 min read
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