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Namespace/subpath: simplify parsing #452

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Namespace/subpath: simplify parsing #452

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Namespace/subpath: simplify parsing
ppkarwasz Apr 8, 2025
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ppkarwasz Apr 9, 2025
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10 changes: 5 additions & 5 deletions PURL-SPECIFICATION.rst
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Expand Up @@ -358,12 +358,11 @@ To parse a ``purl`` string in its components:
- Split the ``purl`` string once from right on '#'

- The left side is the ``remainder``
- Strip the right side from leading and trailing '/'
- Split this on '/'
- Discard any empty string segment from that split
- Split the right side on '/'
- Percent-decode each segment
- Discard any '.' or '..' segment from that split
- UTF-8-decode each segment if needed in your programming language
- Discard any segment that is empty, or equal to `.` or `..`
- Signal an error if any segment contains a solidus `/`
- Join segments back with a '/'
- This is the ``subpath``

Expand Down Expand Up @@ -412,9 +411,10 @@ To parse a ``purl`` string in its components:

- Split the ``remainder`` on '/'

- Discard any empty segment from that split
- Percent-decode each segment
- UTF-8-decode each segment if needed in your programming language
- Discard any segment that is empty, or equal to `.` or `..`
- Signal an error if any segment contains a solidus `/`
- Apply type-specific normalization to each segment if needed
- Join segments back with a '/'
- This is the ``namespace``
Expand Down