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A lexicon-driven AppView for ATProto. happyview.dev
backfill firehose jetstream atproto appview oauth lexicon
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879/** Extract Lua identifier names (variables, functions, parameters). */export function parseLuaIdentifiers(source: string): Set<string> { const ids = new Set<string>(); // local var, local var = ..., local var1, var2 = ... for (const m of source.matchAll(/\blocal\s+([\w,\s]+?)(?:\s*=|$)/gm)) { for (const name of m[1].split(",")) { const trimmed = name.trim(); if (trimmed && /^\w+$/.test(trimmed)) ids.add(trimmed); } } // function name(...), local function name(...) for (const m of source.matchAll(/\bfunction\s+(\w+)\s*\(([^)]*)\)/g)) { ids.add(m[1]); for (const p of m[2].split(",")) { const trimmed = p.trim(); if (trimmed && /^\w+$/.test(trimmed)) ids.add(trimmed); } } // for var [, var...] in/= for (const m of source.matchAll(/\bfor\s+([\w,\s]+?)\s+in\b/g)) { for (const name of m[1].split(",")) { const trimmed = name.trim(); if (trimmed && /^\w+$/.test(trimmed)) ids.add(trimmed); } } return ids;}
/** Parse Lua source for `Record("collection")` variable assignments. */export function parseRecordVariables(source: string): Record<string, string> { const map: Record<string, string> = {}; // Match: local var = Record("collection" and var = Record("collection" const re = /(?:local\s+)?(\w+)\s*=\s*Record\(\s*"([^"]+)"/g; let m; while ((m = re.exec(source)) !== null) { map[m[1]] = m[2]; } return map;}
/** Parse Lua source for `db.query({ collection = "..." })` assignments. * Returns a map of variable name → collection NSID. */export function parseDbQueryVariables( source: string,): Record<string, string | null> { const map: Record<string, string | null> = {}; const re = /(?:local\s+)?(\w+)\s*=\s*db\.query\s*\(\s*\{([^}]*)\}/g; let m; while ((m = re.exec(source)) !== null) { const varName = m[1]; const body = m[2]; const colMatch = body.match(/collection\s*=\s*"([^"]+)"/); map[varName] = colMatch ? colMatch[1] : null; } return map;}
/** Parse `for _, var in ipairs(result.records)` loops and resolve the * iterator variable back to the collection from a db.query result. * Returns a map of iterator variable name → collection NSID. */export function parseDbQueryRecordIterators( source: string, queryVars: Record<string, string | null>,): Record<string, string> { const map: Record<string, string> = {}; const re = /\bfor\s+(?:\w+\s*,\s*)?(\w+)\s+in\s+i?pairs\s*\(\s*(\w+)\.records\s*\)/g; let m; while ((m = re.exec(source)) !== null) { const iterVar = m[1]; const resultVar = m[2]; const collection = queryVars[resultVar]; if (collection) { map[iterVar] = collection; } } return map;}