PyCharm asdf regex examples

[CagtayFabry]

I will start listing some useful regex find/replace patterns for ASDF URIs that work in PyCharm here

For now see comments in #467

notes

• I think the named grouping syntax is quite specific to PyCharm but changes for other engines should be easy to make
• The pattern (?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*) should map to valid version patterns like 1.2.3, *, 1.*, 1.2.*. (Though I'm not sure if we should allow * in our schemas)

regex

legacy -> new

These pairs convert old style tags and schemas to the new URI pattern and keep the object name and version intact.

tag:weldx.bam.de:weldx\/(?<name>.*?)-(?<version>(?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*)?)
asdf://weldx.bam.de/weldx/tags/${name}-${version}

http://weldx.bam.de/schemas/weldx/(?<name>.*?)-(?<version>(?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*)?)
asdf://weldx.bam.de/weldx/schemas/${name}-${version}

new -> legacy

If needed the following pairs can convert back to the old style namings

asdf://weldx.bam.de/weldx/tags/(?<name>.*?)-(?<version>(?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*)?)
tag:weldx.bam.de:weldx\/${name}-${version}

asdf://weldx.bam.de/weldx/schemas/(?<name>.*?)-(?<version>(?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*)?)
http://weldx.bam.de/schemas/weldx/${name}-${version}

replace !weldx! tag handle

By default the tag prefix !weldx! will get set. When creating examples to put into asdf schema files this can be a bit unpractical because we cannot define the tag handle in that context. The following pattern builds the correct tag format from the handle.

!weldx!(?<name>.*?)-(?<version>(?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*)?)
!<asdf://weldx.bam.de/weldx/tags/${name}-${version}>

replace tag objects in examples

Here is an example updated all timedelta objects in the examples from an object/taggedDict to string/taggedString

!<asdf://weldx.bam.de/weldx/tags/time/timedelta-0.1.0> \{value: (?<value>.*?)\}
!<asdf://weldx.bam.de/weldx/tags/time/timedelta-0.1.0> ${value}

oneOf tag validators

For compatibility, single tag validations in schemas should be valid for both old and new styles so this pattern replaces single tag validators with a oneOf structure (and hopefully the right indentation)

\n(?<space>[ \t]+?)tag: "asdf://weldx.bam.de/weldx/tags/(?<name>.*?)-(?<version>(?:\d+.\d+.\d+)|(\*)|(\d+.\*)|(\d+.\d+.\*)?)"

\n${space}oneOf:
${space}  - tag: "asdf://weldx.bam.de/weldx/tags/${name}-${version}"
${space}  - tag: "tag:weldx.bam.de:weldx\/${name}-${version}"

replace oneOf with a single line

here is an example replacing two oneOf tag options with a single tag validator (preserving indentation)

\n(?<space>[ \t]+?)oneOf:
(\1)  - tag: "asdf://weldx.bam.de/weldx/tags/unit/quantity-0.1.*"
(\1)  - tag: "tag:stsci.edu:asdf/unit/quantity-1.*"

\n${space}tag: "asdf://weldx.bam.de/weldx/tags/unit/quantity-0.1.*"

[CagtayFabry]

These might also come in handy when converting old weldx files or similar @vhirtham @marscher :)