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76 lines
2.6 KiB
TypeScript
76 lines
2.6 KiB
TypeScript
/**
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* @fileoverview Shared regex patterns for terminal and token parsing.
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*
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* Pre-compiled patterns avoid re-compilation overhead on each use.
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* Import these patterns instead of defining them locally.
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*
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* @module utils/regex-patterns
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*/
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/**
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* Comprehensive ANSI escape pattern that handles:
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* - SGR (colors/styles): ESC [ params m
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* - CSI sequences (cursor, scroll, etc.): ESC [ params letter
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* - OSC sequences (title, etc.): ESC ] ... BEL or ESC ] ... ST
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* - Single-char escapes: ESC = or ESC >
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*
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* Use this when you need complete ANSI stripping including OSC sequences.
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* Note: Has global flag - reset lastIndex before exec() if reusing.
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*/
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// eslint-disable-next-line no-control-regex
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export const ANSI_ESCAPE_PATTERN_FULL = /\x1b(?:\[[0-9;?]*[A-Za-z]|\][^\x07\x1b]*(?:\x07|\x1b\\)|[=>])/g;
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/**
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* Simple ANSI CSI-only pattern for basic escape code stripping.
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* Matches: ESC [ params letter (e.g., colors, cursor movement)
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*
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* Use this for faster stripping when OSC sequences aren't a concern.
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* Note: Has global flag - reset lastIndex before exec() if reusing.
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*/
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// eslint-disable-next-line no-control-regex
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export const ANSI_ESCAPE_PATTERN_SIMPLE = /\x1b\[[0-9;]*[A-Za-z]/g;
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/**
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* Pattern to extract token count from Claude's status line.
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* Matches: "123.4k tokens", "5234 tokens", "1.2M tokens"
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*
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* Capture groups:
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* - Group 1: The numeric value (e.g., "123.4", "5234", "1.2")
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* - Group 2: Optional suffix (k, K, m, M) or undefined
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*/
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export const TOKEN_PATTERN = /(\d+(?:\.\d+)?)\s*([kKmM])?\s*tokens/;
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/**
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* Strips ANSI escape codes from text using the comprehensive pattern.
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* @param text - Text containing ANSI escape codes
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* @returns Text with ANSI codes removed
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*/
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export function stripAnsi(text: string): string {
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return text.replace(ANSI_ESCAPE_PATTERN_FULL, '');
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}
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/**
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* Regex to validate safe file paths (no shell metacharacters).
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* Shared by schemas.ts and tmux-manager.ts for consistent path validation.
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*/
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/**
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* Braille spinner characters used by Claude Code's Ink UI.
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* Matches any of: ⠋ ⠙ ⠹ ⠸ ⠼ ⠴ ⠦ ⠧
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* Used on the hot path (every PTY chunk) — pre-compiled for performance.
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*/
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export const SPINNER_PATTERN = /[⠋⠙⠹⠸⠼⠴⠦⠧]/;
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export const SAFE_PATH_PATTERN = /^[\p{L}\p{N}_/\-. ~]+$/u;
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/**
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* Execute a global regex pattern against data, calling the callback for each match.
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* Automatically resets lastIndex before execution.
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*/
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export function execPattern(pattern: RegExp, data: string, callback: (match: RegExpExecArray) => void): void {
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pattern.lastIndex = 0;
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let match: RegExpExecArray | null;
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while ((match = pattern.exec(data)) !== null) {
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callback(match);
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}
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}
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