/takker/replace text UserScript再実装版

generated at 2/12/2025, 9:03:42 AM
replace text UserScript再実装版
/progfay-pub/replace text UserScriptを、機能を変えずにrefactoringしたものやっぱちょっと変えた
が改造したreplace text UserScriptが動いていないので、なるべく手を加えないver.を使う

バグ修正

機能変更
(置換対象外|置換前後で文字列が変わらない)ときはボタンを表示しない
置換に使った文字列を消さない
2023-04-08 15:35:49 正規表現でないときは、ReplaceAllで一致した全てを置換するようにする


script.jsimport { exec } from "./mod.js";

scrapbox.PopupMenu.addButton({
  title: (text) => exec(text) ? "replace" : "",
  onClick: (text) => {
    const replaced = exec(text);
    if (replaced === undefined) return;
    return replaced;
  },
});

$ deno check --remote -r=https://scrapbox.io https://scrapbox.io/api/code/takker/replace_text_UserScript再実装版/mod.js
mod.js// @ts-check
/** @param {string} text
 * @return {string | undefined} 置換が実行されないときは`undefined`を返す
 */
export const exec = (text) => {
  const splitPos = text.indexOf("\n\n");
  if (splitPos < 0) return;
  const commands = text.slice(0, splitPos).split("\n").map(
    (command) => {
      const [before = "", after = ""] = command.split(" => ", 2);
      return [before, after];
    }
  );
  if (commands.length === 0) return;
  
  let lines = text.slice(splitPos + 2).split("\n");
  if (lines.length === 0) return;
  for (const [before, after] of commands) {
    const match = before.match(/^\/(.*?)\/([gimy]*)$/);
    if (match) {
      const reg = new RegExp(match[1], match[2]);
      lines = lines.map(
        (line) => line.replace(reg, after.replaceAll("\\n", "\n"))
      );
    } else {
      lines = lines.map(
        (line) => line.replaceAll(before, after.replaceAll("\\n", "\n"))
      );
    }
  }
  
  const newText = `${text.slice(0, splitPos + 2)}${lines.join("\n")}`;
  if (text === newText) return;
  return newText;
};

$ deno test -r=https://scrapbox.io https://scrapbox.io/api/code/takker/replace_text_UserScript%E5%86%8D%E5%AE%9F%E8%A3%85%E7%89%88/mod.test.ts
/progfay-pub/replace text UserScriptのサンプルを流用した
mod.test.tsimport { exec } from "./mod.js";
import { assertEquals } from "https://deno.land/std@0.177.0/testing/asserts.ts";

Deno.test("exec()", async (t) =>{
  await t.step("置換コマンドの文法チェック", async (t) => {
    assertEquals(
      exec(
String.raw`/a/g => b

abc`
      ),
String.raw`/a/g => b

bbc`,
    );
    await t.step("blank", () => {
      assertEquals(
        exec(
String.raw`/a/g=> b

abc`
        ),
        undefined,
      );
      assertEquals(
        exec(
String.raw`/a/g =>b

abc`
        ),
        undefined,
      );
      assertEquals(
        exec(
String.raw`/a/g=>b

abc`
        ),
        undefined,
      );
    });
    await t.step("2 blank lines", () => {
      assertEquals(
        exec(
String.raw`/a/g => b
abc`
        ),
        undefined
      );
      assertEquals(
        exec(
String.raw`abc
/a/g => b`
        ),
        undefined
      );
      assertEquals(
        exec(
String.raw`abc

/a/g => b`
        ),
        undefined
      );
    });
  });
  await t.step("samples", () => {
    assertEquals(
      exec(
String.raw`/\s/g => fuga

hoge hoge hoge`
      ),
String.raw`/\s/g => fuga

hogefugahogefugahoge`,
    );
    assertEquals(
      exec(
String.raw`/a|\s/g => b

ab a b a aba b   a ba bb`
      ),
String.raw`/a|\s/g => b

bbbbbbbbbbbbbbbbbbbbbbbb`
    );
  });
});

txtg/cm3 => g\cdot{cm}^{-3}
g/cm => g\cdot{cm}^{-1}
ρ => \rho
τ => \tau

単位をroman体にして数式記法に変換するときに使ったコマンド
$ /\s*(\w+\s?\=\s?[.\d]+)\s?\[([^\]]+)\]\s*/g => [$ $1\mathrm{$2}]

#2023-04-08 15:35:44 
#2023-02-15 13:24:28 
#2023-02-14 03:20:30 ;