.opencode/node_modules/effect/dist/unstable/cli/internal/ansi.js

/**
 * Internal ANSI escape sequence helpers used by the unstable CLI rendering
 * implementation. This module centralizes the control codes for text styling,
 * cursor movement, line erasing, and terminal notifications so renderers can
 * compose terminal output without scattering raw escape sequences throughout
 * the CLI internals.
 *
 * The helpers deliberately work with plain strings because terminal rendering
 * is sensitive to ordering: style codes must be reset after annotated text,
 * cursor operations must account for one-based terminal coordinates, and line
 * clearing usually needs to preserve the cursor position expected by the next
 * frame.
 */
const ESC = "\x1B[";
const BEL = "\x07";
const SEP = ";";
/** @internal */
export const reset = `${ESC}0m`;
/** @internal */
export const bold = `${ESC}1m`;
/** @internal */
export const italicized = `${ESC}3m`;
/** @internal */
export const underlined = `${ESC}4m`;
/** @internal */
export const strikethrough = `${ESC}9m`;
/** @internal */
export const cursorShow = `${ESC}?25h`;
/** @internal */
export const cursorHide = `${ESC}?25l`;
/** @internal */
export const cursorLeft = `${ESC}G`;
/** @internal */
export const cursorSavePosition = `${ESC}s`;
/** @internal */
export const cursorRestorePosition = `${ESC}u`;
/** @internal */
export const eraseLine = `${ESC}2K`;
/** @internal */
export const beep = BEL;
/** @internal */
export const black = `${ESC}30m`;
/** @internal */
export const red = `${ESC}31m`;
/** @internal */
export const green = `${ESC}32m`;
/** @internal */
export const yellow = `${ESC}33m`;
/** @internal */
export const blue = `${ESC}34m`;
/** @internal */
export const magenta = `${ESC}35m`;
/** @internal */
export const cyan = `${ESC}36m`;
/** @internal */
export const white = `${ESC}37m`;
/** @internal */
export const blackBright = `${ESC}90m`;
/** @internal */
export const redBright = `${ESC}91m`;
/** @internal */
export const greenBright = `${ESC}92m`;
/** @internal */
export const yellowBright = `${ESC}93m`;
/** @internal */
export const blueBright = `${ESC}94m`;
/** @internal */
export const magentaBright = `${ESC}95m`;
/** @internal */
export const cyanBright = `${ESC}96m`;
/** @internal */
export const whiteBright = `${ESC}97m`;
export const annotate = (text, ...styles) => {
  const flat = styles.flat();
  return `${flat.join("")}${text}${reset}`;
};
export const combine = (...styles) => styles;
/** @internal */
export const cursorTo = (column, row) => {
  if (row === undefined) {
    return `\x1b${Math.max(column + 1, 0)} G`;
  }
  return `\x1b${row + 1}${SEP}${Math.max(column + 1, 0)} H`;
};
/** @internal */
export const cursorDown = (lines = 1) => {
  return `${ESC}${lines}B`;
};
/** @internal */
export const cursorMove = (column, row = 0) => {
  let command = "";
  if (row < 0) {
    command += `${ESC}${-row}A`;
  }
  if (row > 0) {
    command += `${ESC}${row}B`;
  }
  if (column > 0) {
    command += `${ESC}${column}C`;
  }
  if (column < 0) {
    command += `${ESC}${-column}D`;
  }
  return command;
};
/** @internal */
export const eraseLines = rows => {
  let command = "";
  for (let i = 0; i < rows; i++) {
    command += `${ESC}2K` + (i < rows - 1 ? `${ESC}1A` : "");
  }
  if (rows > 0) {
    command += `${ESC}G`;
  }
  return command;
};
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