Bryan Helmkamp 467087998d Read workflow graphs through Petri's DOT parser ... Fabro's own DOT parser was left with one job after create-time compile moved to Petri: walking a workflow's file references for the bundler and the workflow-version store, and reading a name, a goal and two counts. Petri's frontend parses the same language, so the parser goes and a small crate reads the graph through Petri's. `fabro-dot` is that crate: `WorkflowGraph::parse` over `petri_frontend_attractor::dot` and its semantic model (defaults applied, subgraphs flattened, chains expanded), `references(position)` as the one walker over the static-reference vocabulary (each reference with its node and position, file references checked to be template-free), and `normalize_for_graphviz`, the re-emit of Fabro DOT with dotted attribute keys quoted, which the SVG render needs. It sits beside `fabro-petri` rather than inside it because `fabro-petri` depends on `fabro-workflow`, which depends on `fabro-workflow-version`: the version store cannot reach `fabro-petri` without a cycle, and the bundler should not pull the engine in to read a graph. Deleted: `fabro-graphviz`'s lexer, grammar, AST, semantic pass and `parse_ast` (1,829 lines, plus the `nom` dependency); the DOT model in `fabro-types::graph` (`Graph`, `Node`, `Edge`, `AttrValue`, `shape_to_handler_type`), with only `ReferenceKind` kept, moved to `fabro_types::reference`; `fabro-template`'s `visit_graph_references` and the `GraphReference`/`GraphPosition` types, with the template-syntax rule (`validate_static_reference`) kept there; the pull-request body's DOT fallback summary, which was unreachable because the DOT source only travels with the run spec whose display graph the summary already reads. `fabro-graphviz` is now the render alone, over `fabro-dot`. Parity: the old and new walkers were run over every `.fabro` and `.dot` file in the repository (118) before the deletion. Every reference set is identical. Five files differ in what Petri reads more correctly: a backslash before a newline inside a quoted string is a line continuation (four files, inline prompt text only), and a node named only by an edge counts as a node (`test/edge_only_node.fabro`, 3 nodes rather than 2, so the `fabro validate` snapshot moves). The checked-in bundles' shapes and references are pinned by a snapshot in `fabro-dot`. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>		2026-09-19 12:23:57 -04:00
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src	Read workflow graphs through Petri's DOT parser	2026-09-19 12:23:57 -04:00
Cargo.toml	Read workflow graphs through Petri's DOT parser	2026-09-19 12:23:57 -04:00