3 files changed, 54 insertions, 100 deletions

diff --git a/rust/wolfree_sed_in_place/src/include_str.html b/rust/wolfree_sed_in_place/src/include_str.html
index 2fbe0f4..f09b167 100644
--- a/rust/wolfree_sed_in_place/src/include_str.html
+++ b/rust/wolfree_sed_in_place/src/include_str.html
@@ -1,13 +1,15 @@
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
+
 <meta name="referrer" content="no-referrer" />
 
-<script type="module" src="/ajax/libs/jquery/3.7.0/jquery.min.js"></script>
+<script type="module" src="/ajax/libs/jquery/3.7.1/jquery.min.js"></script>
 <script type="module" src="/ajax/libs/dompurify/3.0.5/purify.min.js"></script>
-<script type="module" src="/ajax/libs/wolfree/23.7.8/js/onload.js"></script>
+<script type="module" src="/ajax/libs/wolfree/2023.8.31/js/onload.js"></script>
 
 <link rel="preload" as="style" onload="this.onload = null; this.rel = 'stylesheet';"
-    href="/ajax/libs/wolfree/23.7.8/css/Placeholder.css" />
+    href="/ajax/libs/wolfree/2023.8.31/css/Placeholder.css" />
 <link rel="preload" as="style" onload="this.onload = null; this.rel = 'stylesheet';"
-    href="/ajax/libs/wolfree/23.7.8/css/PodsParser.css" />
+    href="/ajax/libs/wolfree/2023.8.31/css/PodsParser.css" />
 
 <style>
     html>body>#__next>div>header {
@@ -64,6 +66,10 @@
     }
 </style>
 
+<!--
+    Regex in regex - Rust
+    https://docs.rs/regex/latest/regex/struct.Regex.html#replacement-string-syntax
+-->
 $0
 
 <header>
@@ -72,5 +78,4 @@ $0
         <a href="../mirror">Mirror</a>
         <a href="../source">Source</a>
     </nav>
-</header>
-<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
\ No newline at end of file
+</header>
\ No newline at end of file
diff --git a/rust/wolfree_sed_in_place/src/include_str.tsx b/rust/wolfree_sed_in_place/src/include_str.js
index 3c8ff4e..9ef3a31 100644
--- a/rust/wolfree_sed_in_place/src/include_str.tsx
+++ b/rust/wolfree_sed_in_place/src/include_str.js
@@ -1,14 +1,10 @@
-/**
- * @license
- * SPDX-License-Identifier: AGPL-3.0-or-later
- * This file is part of Wolfree.
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
- */
+/* SPDX-License-Identifier: AGPL-3.0-or-later */
 
 // @ts-check
 
 const wolfreeLexicalScopeName = (() => {
-  const possibleLetters = Array();
+  /** @type {string[]} */
+  const possibleLetters = [];
 
   for (let i = 32; i < 127; i++) {
     possibleLetters.push(String.fromCharCode(i));
@@ -18,7 +14,7 @@ const wolfreeLexicalScopeName = (() => {
     possibleLetters.map((y) => x + y)
   );
 
-  const isValid = (name = String()) => {
+  const isValid = (name = "") => {
     try {
       return (
         typeof eval(name).value === "string" &&
@@ -32,7 +28,7 @@ const wolfreeLexicalScopeName = (() => {
   const wolfreeLexicalScopeName = possibleNames.find(isValid);
 
   if (typeof wolfreeLexicalScopeName !== "string") {
-    console.error({ wolfreeLexicalScopeName });
+    console.warn({ wolfreeLexicalScopeName });
     return "";
   }
 
@@ -40,7 +36,7 @@ const wolfreeLexicalScopeName = (() => {
 })();
 
 (() => {
-  const get = (params = String()) => {
+  const get = (params = "") => {
     return new URLSearchParams(location.search).get(params);
   };
 
@@ -51,8 +47,6 @@ const wolfreeLexicalScopeName = (() => {
 /**
  * Regex in regex - Rust
  * https://docs.rs/regex/latest/regex/struct.Regex.html#replacement-string-syntax
- * All instances of $ref in the replacement string are replaced with the substring corresponding to the capture group identified by ref.
- * ref may be an integer corresponding to the index of the capture group (counted by order of opening parenthesis where 0 is the entire match) or it can be a name (consisting of letters, digits or underscores) corresponding to a named capture group.
  */
 // @ts-ignore
 $0;
@@ -61,11 +55,11 @@ $0;
   (
     await import(
       // @ts-ignore
-      "../../../ajax/libs/wolfree/23.7.8/js/Entrypoint.js"
+      "/ajax/libs/wolfree/2023.8.31/js/entrypoint.js"
     )
   ).default({
     input: eval(wolfreeLexicalScopeName).value,
-    i2d: eval(wolfreeLexicalScopeName).i2d,
-    extraPodstates: [],
+    ...(eval(wolfreeLexicalScopeName).i2d ? { i2d: true } : {}),
+    podstate: ["Step-by-step solution", "Step-by-step", "Show all steps"],
   });
 })();
diff --git a/rust/wolfree_sed_in_place/src/main.rs b/rust/wolfree_sed_in_place/src/main.rs
index 7d56889..f20393f 100644
--- a/rust/wolfree_sed_in_place/src/main.rs
+++ b/rust/wolfree_sed_in_place/src/main.rs
@@ -1,17 +1,14 @@
-//! The `wolfree_sed_in_place` crate provides a function for performing in-place replacements of patterns in multiple files using regular expressions.
+/* SPDX-License-Identifier: AGPL-3.0-or-later */
+
+//! This crate provides a function for performing in-place replacements of patterns in multiple files using regular expressions.
 //! It allows you to recursively process all files within a specified directory and replace occurrences of a given pattern with a specified replacement string.
 
 #![allow(clippy::blanket_clippy_restriction_lints)]
-#![allow(clippy::exit)]
-#![allow(clippy::print_stderr)]
 #![allow(clippy::implicit_return)]
-
-/* SPDX-License-Identifier: AGPL-3.0-or-later
- * This file is part of Wolfree.
- * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
- */
+#![allow(clippy::question_mark_used)]
 
 use regex::Regex;
+use std::error;
 use std::fs;
 use walkdir::WalkDir;
 
@@ -21,94 +18,52 @@ use walkdir::WalkDir;
 /// filters out directories, and applies a regular expression-based replacement
 /// on the contents of each file.
 ///
-/// # Arguments
-///
 /// * `directory_path`: A string slice representing the path of the directory to traverse.
 /// * `pattern`: A string slice containing the regular expression pattern to search for.
 /// * `replacement`: A string slice representing the replacement for each matched pattern.
-///
-/// # Examples
-///
-/// ```rust
-/// // Replace a specific pattern in the file contents in the "./data/" directory.
-/// wolfree_sed_in_place("./data/", r"\bFoo\b", "Bar");
-/// ```
-///
-/// This example replaces all occurrences of the word "Foo" with "Bar" in the files inside the "data" directory.
-fn wolfree_sed_in_place(directory_path: &str, pattern: &str, replacement: &str) {
-    // Compile the regular expression pattern
-    let regex = match Regex::new(pattern) {
-        Ok(re) => re,
-        Err(err) => {
-            eprintln!("Error: {err}",);
-            std::process::exit(1);
-        }
-    };
-
-    // Create a directory walker and filter out non-file entries
-    let walker = WalkDir::new(directory_path)
+fn sed(
+    directory_path: &str,
+    pattern: &str,
+    replacement: &str
+) -> Result<(), Box<dyn error::Error>> {
+    // Compile the regular expression pattern.
+    let regex = Regex::new(pattern)?;
+    // Create a directory walker and filter out non-file entries.
+    for entry in WalkDir::new(directory_path)
         .into_iter()
         .filter_map(Result::ok)
-        .filter(|entry| !entry.file_type().is_dir());
-
-    // Process each file in the directory
-    for entry in walker {
+        .filter(|entry| !entry.file_type().is_dir()) {
         let file_path = entry.path();
-
-        // Read the file's contents into a string
-        let file_contents = match fs::read_to_string(file_path) {
-            Ok(contents) => contents,
-            Err(err) => {
-                eprintln!("Error: {err}",);
-                std::process::exit(1);
-            }
-        };
-
-        // Perform the regex replacement on the file's contents
-        let modified_contents = regex.replace(&file_contents, replacement);
-        let modified_contents_as_ref = modified_contents.as_ref();
-
-        // Write the modified contents back to the file, overwriting its previous contents
-        match fs::write(file_path, modified_contents_as_ref) {
-            Ok(_) => (),
-            Err(err) => {
-                eprintln!("Error: {err}",);
-                std::process::exit(1);
-            }
-        };
+        // Read the file's contents into a string.
+        // Perform the regex replacement on the file's contents.
+        // Write the modified contents back to the file, overwriting its previous contents.
+        fs::write(file_path, &*regex.replace(&fs::read_to_string(file_path)?, replacement))?;
     }
+    Ok(())
 }
 
 /// Entry point of the program.
-/// Demonstrates using `wolfree_sed_in_place` function to perform in-place replacements on files in specific directories.
-fn main() {
-    wolfree_sed_in_place(
-        "./docusaurus/build/input/",
-        "</head><body>",
-        include_str!("include_str.html"),
-    );
+/// Demonstrates using `sed` function to perform in-place replacements on files in specific directories.
+fn main() -> Result<(), Box<dyn error::Error>> {
+    sed("./docusaurus/static/input/", "</head><body>", include_str!("include_str.html"))?;
 
-    wolfree_sed_in_place(
-        "./docusaurus/build/_next/static/chunks/",
+    sed(
+        "./docusaurus/static/_next/static/chunks/",
         r"try(.{0,100}?)generateEncodedJSONFromValue(.*?)unescapeForUrl(.*?)catch(.*?)\{}",
-        include_str!("include_str.tsx"),
-    );
+        include_str!("include_str.js")
+    )?;
 
     // console error:
-    //     _app-daabd76ef4fe402d.js:5
     //     WebSocket connection to 'wss://localhost/n/v1/api/fetcher/results' failed:
-    //     startWebsocket @ _app-daabd76ef4fe402d.js:5
-    //     send           @ _app-daabd76ef4fe402d.js:5
-    //     sendMessage    @ 1695-ae743311a23f8eb5.js:1
-    //     newQuery       @ 1695-ae743311a23f8eb5.js:78
-    //     newQuery       @ 1695-ae743311a23f8eb5.js:78
     // fix:
-    //     Override the hostname in the minified JavaScript source code.
-    wolfree_sed_in_place(
-        "./docusaurus/build/_next/static/chunks/pages/",
+    //     override the hostname
+    sed(
+        "./docusaurus/static/_next/static/chunks/pages/",
         "window.location.hostname",
-        "'www.wolframalpha.com'",
-    );
+        "'www.wolframalpha.com'"
+    )?;
+
+    Ok(())
 }
 
 // regex101: build, test, and debug regex