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Update document and working example on flag parsing #563
Description
The current documnetation and working example uses legacy flag parsing APIs.
This does not support immutable fiddlers. The example/doc could be updated to use up to date APIs for parsing/defining flags.
Activity
rksharma-owg commentedon Oct 14, 2026
The code lab now documents
DEFINE_fiddle_config()andDEFINE_fiddle_sweep()and explicitly labelsfiddle/absl_flags/exampleas the legacy example. The modern single-config example is still under_src.I checked current main (
8384c49d6fc7895dadd220e11dc7e7bb02129890): a fiddler returning a replacement config leaves the legacy result unchanged, while the modern API uses the replacement. The documented legacy example itself runs successfully, and the 23 flag-utility/sweep tests pass.Is the remaining scope here a public runnable modern-API example alongside the legacy one, or do you want the existing business example migrated? Adding a modern sibling would let it demonstrate immutable fiddlers while preserving the documented legacy commands.