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refactor: consolidate shared regex patterns and token validation

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- Create src/utils/regex-patterns.ts with ANSI_ESCAPE_PATTERN_FULL,
  ANSI_ESCAPE_PATTERN_SIMPLE, TOKEN_PATTERN, and helper functions
- Create src/utils/token-validation.ts with MAX_SESSION_TOKENS and
  validation utilities
- Update session.ts, respawn-controller.ts, ai-checker-base.ts,
  ralph-tracker.ts, state-store.ts to use shared utilities
- Export all new utilities from src/utils/index.ts

Reduces code duplication while maintaining pre-compiled patterns
for performance.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
arkon
2026-01-29 10:55:49 +01:00
co-authored by Claude Opus 4.5
parent 451f0854eb
commit 6c07541288
10 changed files with 187 additions and 45 deletions
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src/respawn-controller.ts
+8 -13
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@@ -39,6 +39,10 @@ import { Session } from './session.js';
import { AiIdleChecker, type AiCheckResult, type AiCheckState } from './ai-idle-checker.js';
import { AiPlanChecker, type AiPlanCheckResult } from './ai-plan-checker.js';
import { BufferAccumulator } from './utils/buffer-accumulator.js';
import {
ANSI_ESCAPE_PATTERN_SIMPLE,
TOKEN_PATTERN,
} from './utils/index.js';
import {
MAX_RESPAWN_BUFFER_SIZE,
TRIM_RESPAWN_BUFFER_TO as RESPAWN_BUFFER_TRIM_SIZE,
@@ -56,21 +60,12 @@ import {
*/
const COMPLETION_TIME_PATTERN = /\bWorked\s+for\s+\d+[hms](\s*\d+[hms])*/i;
/**
* Pattern to extract token count from Claude's status line.
* Matches: "123.4k tokens", "5234 tokens", "1.2M tokens"
*/
const TOKEN_PATTERN = /(\d+(?:\.\d+)?)\s*([kKmM])?\s*tokens/;
/** Pre-filter: numbered option pattern for plan mode detection */
const PLAN_MODE_OPTION_PATTERN = /\d+\.\s+(Yes|No|Type|Cancel|Skip|Proceed|Approve|Reject)/i;
/** Pre-filter: selection indicator arrow for plan mode detection */
const PLAN_MODE_SELECTOR_PATTERN = /[❯>]\s*\d+\./;
/** Pattern to strip ANSI escape codes from terminal output */
const ANSI_ESCAPE_PATTERN = /\x1b\[[0-9;]*[A-Za-z]/g;
// Note: The old '↵ send' indicator is no longer reliable in Claude Code 2024+
// Detection now uses completion message patterns ("for Xm Xs") instead.
@@ -1223,8 +1218,8 @@ export class RespawnController extends EventEmitter {
// This prevents false triggers when Claude pauses briefly mid-work.
if (this._state === 'confirming_idle' || this._state === 'ai_checking') {
// Strip ANSI escape codes to check if there's real content
ANSI_ESCAPE_PATTERN.lastIndex = 0;
const stripped = data.replace(ANSI_ESCAPE_PATTERN, '').trim();
ANSI_ESCAPE_PATTERN_SIMPLE.lastIndex = 0;
const stripped = data.replace(ANSI_ESCAPE_PATTERN_SIMPLE, '').trim();
if (stripped.length > 2) {
if (this._state === 'ai_checking') {
this.log(`Substantial output during AI check ("${stripped.substring(0, 40)}..."), cancelling`);
@@ -1871,8 +1866,8 @@ export class RespawnController extends EventEmitter {
const tail = buffer.slice(-2000);
// Strip ANSI codes for pattern matching
ANSI_ESCAPE_PATTERN.lastIndex = 0;
const stripped = tail.replace(ANSI_ESCAPE_PATTERN, '');
ANSI_ESCAPE_PATTERN_SIMPLE.lastIndex = 0;
const stripped = tail.replace(ANSI_ESCAPE_PATTERN_SIMPLE, '');
// Must find numbered option pattern
if (!PLAN_MODE_OPTION_PATTERN.test(stripped)) return false;