One day I'll figure this shit out

fix: bad exit logic
feat: field rename now supports renaming things with multiple widgets

.gitea/workflows/release.yml

@@ -30,7 +30,7 @@ jobs:
         uses: https://git.cyborggrizzly.com/bearmetal/ci-actions/deno-release@main
         with:
           entrypoint: main.ts
-          compile-flags: "--allow-read --allow-write --allow-env --allow-net"
+          compile-flags: "--allow-read --allow-write --allow-env --allow-net --include asciiart.txt"
         env:
           GITEA_TOKEN: ${{ secrets.GIT_PAT }}
 

.gitignore

@@ -3,4 +3,6 @@
 .env
 
 log.txt
-log
+log
+
+test2.pdf

CHANGELOG.md

@@ -0,0 +1,39 @@
+# Changelog
+
+## v1.0.2 (2025-05-20)
+
+<!-- auto-changelog -->
+
+## v1.0.1 (2025-05-7)
+
+<!-- auto-changelog -->
+
+### Known Issues
+
+- help flags can cause issues
+
+## v1.0.0 (2025-05-7)
+
+### Features
+
+- Check Code Tool
+  - reads supplied code files to see if form fields are present and represented
+    in a switch statement
+- Field Rename Tool
+  - provide a search and replace pattern to bulk rename form fields
+- List Form Fields
+  - Sometimes you just need to see what fields there are
+
+### Known Issues
+
+- Field rename does not represent full change applied to the field, only the
+  replaced text
+- help flags can cause issues
+- ascii art is broken (sad face)
+- banana doesn't work
+
+## v0.0.0 (never)
+
+this is just here for a reference to the auto-changelog
+
+<!-- auto-changelog -->

README.md

@@ -1,7 +1,16 @@
-# Emma's Simple Form Field Checker
+# BearMetal PDF Tools
 
-Compares a PDF form to a list of CS class files to see if all field names are
-present, excluding signature fields.
+A collection of tools for working with PDF forms.
+
+## Features
+
+- Check Code Tool
+  - reads supplied code files to see if form fields are present and represented
+    in a switch statement
+- Field Rename Tool
+  - provide a search and replace pattern to bulk rename form fields
+- List Form Fields
+  - Sometimes you just need to see what fields there are
 
 ## Prereqs
 
@@ -11,7 +20,8 @@ Deno >=2.2 (not required if downloading .exe)
 
 ### Deno install
 
-`deno task install` -> installs as global command `checkfields`
+`deno install -g --allow-read --allow-write --allow-net --allow-env jsr:@bearmetal/pdf-tools`
+-> installs as global command `pdf-tools`
 
 ### Compile
 
@@ -20,17 +30,51 @@ Deno >=2.2 (not required if downloading .exe)
 > If you want it to be a global command, create an executables directory and add
 > it to the PATH
 
+### Precompiled
+
+Download the latest release from the
+[releases page](https://git.cyborggrizzly.com/BearMetal/pdf-tools/releases)
+
 ## Usage
 
-`checkfields <path to PDF> <comma-separated list of paths to CS class files>`
--OR- `checkfields` and follow prompts.
+`pdf-tools <tool> <args>` -> `<tool>` is one of the following
 
-### Output
+- check-code
+- field-rename
+- list-form-fields
 
-> All form fields present!
+## Contributing
 
--OR-
+Contributions are welcome!
 
-> The following field names are not present in the CS code
+## License
 
-> \<list of missing form fields\>
+GPL 3.0
+
+---
+
+### About this project
+
+BearMetal PDF Tools is a collection of tools made to fix the current state of
+PDF form editing. Adobe Acrobat is a great tool, but it's not always the easiest
+to use, nor is it free. It also lacks some features that I find useful, such as
+bulk renaming of form fields. There's also a lack of powerful, free, and open
+source tools for PDF editing.
+
+This project aims to fill that gap by providing a set of tools that can be used
+to edit PDF forms. The tools are written in Deno, a modern and secure runtime
+for JavaScript and TypeScript. They are designed to be easy to use and to
+provide a great user experience.
+
+The tools are designed to be used in a terminal, and are not designed to be
+integrated into other applications. They are also not designed to be used as a
+library, but rather as a command line tool.
+
+### About BearMetal
+
+BearMetal is a project that aims to decrapify modern web development. It is a
+collection of tools, libraries, and resources that aim to make web development
+more accessible and less intimidating. The project is open source and free to
+use, and is designed to be used by anyone, regardless of skill level or
+experience. You can find a list of libraries and tools on
+[JSR](https://jsr.io/@bearmetal).

cli/InputManager.ts

@@ -0,0 +1,196 @@
+interface EventMap {
+  keypress: CLIKeypressEvent;
+  char: CLICharEvent;
+  activate: Event;
+  deactivate: Event;
+  exit: Event;
+  enter: Event;
+  backspace: Event;
+  delete: Event;
+  "arrow-left": Event;
+  "arrow-right": Event;
+  "arrow-up": Event;
+  "arrow-down": Event;
+  [key: string]: Event;
+}
+
+interface EventDetailMap {
+  keypress: {
+    key: number;
+    sequence?: Uint8Array;
+  };
+  char: EventDetailMap["keypress"] & {
+    char: string;
+  };
+}
+
+export type TypedEventTarget<EventMap extends object> = {
+  new (): IntermediateEventTarget<EventMap>;
+};
+
+export interface IntermediateEventTarget<EventMap> extends EventTarget {
+  addEventListener<K extends keyof EventMap>(
+    type: K,
+    listener: (
+      event: EventMap[K] extends Event ? EventMap[K] : Event,
+    ) => EventMap[K] extends Event ? void : never,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+
+  addEventListener(
+    type: string,
+    listener: EventListenerOrEventListenerObject,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+
+  removeEventListener<K extends keyof EventMap>(
+    type: K,
+    listener: (
+      event: EventMap[K] extends Event ? EventMap[K] : Event,
+    ) => EventMap[K] extends Event ? void : never,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+
+  removeEventListener(
+    type: string,
+    listener: EventListenerOrEventListenerObject,
+    options?: boolean | AddEventListenerOptions,
+  ): void;
+}
+
+const ManagerEventTarget = EventTarget as TypedEventTarget<EventMap>;
+
+export class CLICharEvent extends CustomEvent<EventDetailMap["char"]> {
+  constructor(detail: EventDetailMap["char"]) {
+    super("char", { detail, cancelable: true });
+  }
+}
+export class CLIKeypressEvent extends CustomEvent<EventDetailMap["keypress"]> {
+  constructor(detail: EventDetailMap["keypress"]) {
+    super("keypress", { detail, cancelable: true });
+  }
+}
+
+export class InputManager extends ManagerEventTarget {
+  private static instance = new InputManager();
+  private active = false;
+
+  static getInstance(): InputManager {
+    return this.instance ??= new InputManager();
+  }
+
+  static addEventListener = InputManager.prototype.addEventListener.bind(
+    this.instance,
+  );
+  static removeEventListener = InputManager.prototype.removeEventListener.bind(
+    this.instance,
+  );
+  static dispatchEvent = InputManager.prototype.dispatchEvent.bind(
+    this.instance,
+  );
+
+  activate({ raw = true }: { raw?: boolean } = {}) {
+    if (this.active) return;
+    this.active = true;
+    this.dispatchEvent(new Event("activate"));
+    this.listen(raw);
+  }
+
+  deactivate({ dactivateRaw = true }: { dactivateRaw?: boolean } = {}) {
+    if (!this.active) return;
+    this.active = false;
+    this.dispatchEvent(new Event("deactivate"));
+    if (dactivateRaw) Deno.stdin.setRaw(false);
+  }
+
+  once<T extends string>(type: T): Promise<Event> {
+    return new Promise((resolve) => {
+      const handler = (event: Event) => {
+        this.removeEventListener(type, handler);
+        resolve(event);
+      };
+      this.addEventListener(type, handler);
+    });
+  }
+
+  private async listen(raw: boolean) {
+    if (raw) await Deno.stdin.setRaw(true);
+    const buf = new Uint8Array(64);
+
+    while (this.active) {
+      const n = await Deno.stdin.read(buf);
+      if (n === null) break;
+
+      let i = 0;
+      while (i < n) {
+        const byte = buf[i];
+
+        // Ctrl+C
+        if (byte === 3) {
+          this.dispatchEvent(new Event("exit"));
+          await Deno.stdin.setRaw(false);
+          Deno.exit(130);
+        }
+
+        // Enter
+        if (byte === 13) {
+          this.dispatchEvent(new Event("enter"));
+          i++;
+          continue;
+        }
+
+        // Backspace
+        if (byte === 127 || byte === 8) {
+          this.dispatchEvent(new Event("backspace"));
+          i++;
+          continue;
+        }
+
+        // Escape sequences
+        if (byte === 27 && i + 1 < n && buf[i + 1] === 91) {
+          const code = buf[i + 2];
+          switch (code) {
+            case 65:
+              this.dispatchEvent(new Event("arrow-up"));
+              break;
+            case 66:
+              this.dispatchEvent(new Event("arrow-down"));
+              break;
+            case 67:
+              this.dispatchEvent(new Event("arrow-right"));
+              break;
+            case 68:
+              this.dispatchEvent(new Event("arrow-left"));
+              break;
+            case 51:
+              if (i + 3 < n && buf[i + 3] === 126) {
+                this.dispatchEvent(new Event("delete"));
+                i += 4;
+                continue;
+              }
+              break;
+          }
+          i += 3;
+          continue;
+        }
+
+        // Printable ASCII
+        if (byte >= 32 && byte <= 126) {
+          this.dispatchEvent(
+            new CLICharEvent({ key: byte, char: String.fromCharCode(byte) }),
+          );
+          i++;
+          continue;
+        }
+
+        // Unknown
+        this.dispatchEvent(
+          new CLIKeypressEvent({ key: byte, sequence: buf.slice(i, i + 1) }),
+        );
+        i++;
+      }
+    }
+
+    if (raw) await Deno.stdin.setRaw(false);
+  }
+}

cli/TerminalLayout.ts

@@ -22,7 +22,7 @@ export class TerminalLayout {
 
     Deno.addSignalListener("SIGINT", () => {
       this.clearAll();
-      Deno.exit(0);
+      // Deno.exit(0);
     });
   }
 
@@ -44,7 +44,9 @@ export class TerminalLayout {
       clearTimeout(this.debounceTimer);
     }
     this.debounceTimer = setTimeout(
-      () => this.renderLayout(),
+      () => {
+        this.renderLayout();
+      },
       this.debounceDelay,
     );
   }
@@ -76,6 +78,10 @@ export class TerminalLayout {
       block.renderInternal(usedLines + 1);
       usedLines += lines.length;
     }
+    for (const name of this.layoutOrder) {
+      const block = this.blocks[name];
+      block.runPostRenderAction?.();
+    }
   }
 
   clearAll() {
@@ -111,9 +117,12 @@ export class TerminalBlock {
   private renderHeight: number = 0;
   private lastRenderRow = 1;
 
+  private lastRendered: string[] = [];
+
   private preserveHistory = false;
 
-  constructor(private prepend: string = "") {}
+  constructor(private prepend: string = "") {
+  }
 
   setPreserveHistory(preserveHistory: boolean) {
     this.preserveHistory = preserveHistory;
@@ -193,27 +202,39 @@ export class TerminalBlock {
   }
 
   renderInternal(startRow?: number) {
-    this.lastRenderRow = startRow ?? this.lastRenderRow;
-    this.clear(); // uses old renderedLineCount
+    const outputLines: string[] = [];
 
-    const outputLines = this.renderLines.map((line) =>
-      `${this.prepend}${line}\x1b[K`
-    );
-    const output = outputLines.join("\n");
-    if (startRow !== undefined) {
-      const moveCursor = `\x1b[${startRow};1H`;
-      Deno.stdout.writeSync(new TextEncoder().encode(moveCursor + output));
-    } else {
-      Deno.stdout.writeSync(new TextEncoder().encode(output));
+    for (let i = 0; i < this.renderLines.length; i++) {
+      const line = `${this.prepend}${this.renderLines[i]}`;
+      const previous = this.lastRendered[i];
+      if (line !== previous) {
+        const moveToLine = `\x1b[${(startRow ?? this.lastRenderRow) + i};1H`;
+        outputLines.push(moveToLine + line + "\x1b[K");
+      }
     }
 
-    // update rendered line count *after* rendering
-    this.renderedLineCount = outputLines.reduce(
-      (count, line) =>
-        count +
-        Math.ceil((line.length) / (Deno.consoleSize().columns || 80)),
-      0,
-    );
+    if (this.lastRendered.length > this.renderLines.length) {
+      const baseRow = startRow ?? this.lastRenderRow;
+      for (let i = this.renderLines.length; i < this.lastRendered.length; i++) {
+        const moveToLine = `\x1b[${baseRow + i};1H\x1b[2K`;
+        Deno.stdout.writeSync(new TextEncoder().encode(moveToLine));
+      }
+    }
+
+    const baseRow = startRow ?? this.lastRenderRow;
+    const excessLines = this.renderHeight - this.renderLines.length;
+    for (let i = 0; i < excessLines; i++) {
+      const moveToLine = `\x1b[${
+        baseRow + this.renderLines.length + i
+      };1H\x1b[2K`;
+      Deno.stdout.writeSync(new TextEncoder().encode(moveToLine));
+    }
+
+    this.lastRendered = [...this.renderLines];
+    this.renderedLineCount = this.renderHeight;
+    this.lastRenderRow = baseRow;
+    const output = outputLines.join("\n");
+    Deno.stdout.writeSync(new TextEncoder().encode(output));
   }
 
   clear() {
@@ -242,6 +263,17 @@ export class TerminalBlock {
     return this.fixedHeight ?? 0;
   }
 
+  private _postRenderAction?: () => void;
+  setPostRenderAction(action: (this: TerminalBlock) => void) {
+    this._postRenderAction = action;
+  }
+  runPostRenderAction() {
+    if (this._postRenderAction) {
+      this._postRenderAction.call(this);
+      this._postRenderAction = undefined;
+    }
+  }
+
   get lineCount() {
     return this.renderLines.length;
   }

cli/index.ts

@@ -6,8 +6,7 @@ import { selectMenuInteractive } from "./selectMenu.ts";
 import { TerminalBlock, TerminalLayout } from "./TerminalLayout.ts";
 import { cliAlert, cliLog } from "./prompts.ts";
 import type { ITool } from "../types.ts";
-import { join, toFileUrl } from "@std/path";
-import { log } from "util/logfile.ts";
+import { InputManager } from "./InputManager.ts";
 
 // Register tools here (filename, no extension)
 const toolRegistry: [string, Promise<{ default: ITool }>][] = [
@@ -23,6 +22,7 @@ export class PdfToolsCli {
 
   private args = ArgParser.parse(Deno.args).setFlagDefs({
     help: ["-h", "--help"],
+    banana: ["-b", "--banana"],
   });
 
   async importTools() {
@@ -43,9 +43,7 @@ export class PdfToolsCli {
 
   private async banana() {
     const asciiArt = await getAsciiArt("banana");
-    const body = this.terminalLayout.getBlock("body");
-    body.clearAll();
-    cliLog(colorize(asciiArt, "yellow"), body);
+    this.closeMessage = colorize(asciiArt, "yellow");
   }
 
   private async help() {
@@ -58,12 +56,23 @@ export class PdfToolsCli {
   }
 
   public async run() {
+    const im = InputManager.getInstance();
+    im.activate();
+    im.addEventListener("exit", () => {
+      this.closeMessage = "Exiting...";
+      this.cleanup();
+    });
     try {
       await this.importTools();
       const titleBlock = new TerminalBlock();
       this.terminalLayout.register("title", titleBlock);
       const bodyBlock = new TerminalBlock();
       this.terminalLayout.register("body", bodyBlock);
+      if (this.args.getFlag("banana")) {
+        titleBlock.setFixedHeight(0);
+        await this.banana();
+        return;
+      }
       if (this.args.getFlag("help") && !this.args.task) {
         await this.help();
         return;
@@ -75,12 +84,18 @@ export class PdfToolsCli {
         await this.runTool(toCase(task, "title"));
       }
     } finally {
-      this.terminalLayout.clearAll();
-      Deno.stdin.setRaw(false);
-      if (this.closeMessage) console.log(this.closeMessage);
+      this.cleanup();
+      Deno.exit(0);
     }
   }
 
+  private cleanup() {
+    this.terminalLayout.clearAll();
+    InputManager.getInstance().deactivate();
+    Deno.stdin.setRaw(false);
+    if (this.closeMessage) console.log(this.closeMessage);
+  }
+
   private async toolMenu() {
     const tools = this.tools.keys().toArray();
     const bodyBlock = this.terminalLayout.getBlock("body");

cli/prompts.ts

@@ -2,6 +2,116 @@
 import { Cursor } from "./cursor.ts";
 import { colorize } from "./style.ts";
 import { TerminalBlock, TerminalLayout } from "./TerminalLayout.ts";
+import { type CLICharEvent, InputManager } from "./InputManager.ts";
+
+// export async function cliPrompt(
+//   message: string,
+//   block?: TerminalBlock,
+// ): Promise<string> {
+//   const encoder = new TextEncoder();
+//   const input: string[] = [];
+//   let cursorPos = 0;
+
+//   await Deno.stdin.setRaw(true);
+
+//   const cursorVisible = Cursor["visible"];
+//   Cursor.show();
+
+//   let range: [number, number] = [0, 1];
+//   if (block) {
+//     range = block.setLines([message + " "]);
+//   } else {
+//     Deno.stdout.writeSync(encoder.encode(message + " "));
+//   }
+
+//   const render = () => {
+//     const line = message + " " + input.join("");
+//     const moveTo = `\x1b[${message.length + 2 + cursorPos}G`;
+
+//     if (block) {
+//       block.setPostRenderAction(function () {
+//         Deno.stdout.writeSync(
+//           encoder.encode(`\x1b[${this["lastRenderRow"]};1H`),
+//         );
+//         Deno.stdout.writeSync(encoder.encode(moveTo));
+//       });
+//       range = block.setLines([line], range);
+//     } else {
+//       Deno.stdout.writeSync(encoder.encode("\x1b[K" + line + moveTo));
+//     }
+//   };
+
+//   render();
+
+//   const buf = new Uint8Array(64); // large enough for most pastes
+//   inputLoop:
+//   while (true) {
+//     const n = await Deno.stdin.read(buf);
+//     if (n === null) break;
+
+//     for (let i = 0; i < n; i++) {
+//       const byte = buf[i];
+
+//       // Ctrl+C
+//       if (byte === 3) {
+//         block?.clear();
+//         block?.["layout"]?.clearAll();
+//         await Deno.stdin.setRaw(false);
+//         Deno.exit(130);
+//       }
+
+//       if (byte === 13) { // Enter
+//         break inputLoop;
+//       }
+
+//       // Escape sequence?
+//       if (byte === 27 && i + 1 < n && buf[i + 1] === 91) {
+//         const third = buf[i + 2];
+//         if (third === 68 && cursorPos > 0) cursorPos--; // Left
+//         else if (third === 67 && cursorPos < input.length) cursorPos++; // Right
+//         else if (third === 51 && i + 3 < n && buf[i + 3] === 126) { // Delete
+//           if (cursorPos < input.length) input.splice(cursorPos, 1);
+//           i += 1; // consume tilde
+//         }
+//         i += 2; // consume ESC [ X
+//         continue;
+//       }
+
+//       // Backspace
+//       if (byte === 127 || byte === 8) {
+//         if (cursorPos > 0) {
+//           input.splice(cursorPos - 1, 1);
+//           cursorPos--;
+//         }
+//         continue;
+//       }
+
+//       // Delete (ASCII 46)
+//       if (byte === 46 && cursorPos < input.length) {
+//         input.splice(cursorPos, 1);
+//         continue;
+//       }
+
+//       // Printable
+//       if (byte >= 32 && byte <= 126) {
+//         input.splice(cursorPos, 0, String.fromCharCode(byte));
+//         cursorPos++;
+//       }
+
+//       // Other cases: ignore
+//     }
+
+//     render();
+//   }
+
+//   await Deno.stdin.setRaw(false);
+//   if (!cursorVisible) {
+//     Cursor.hide();
+//   }
+//   Deno.stdout.writeSync(encoder.encode("\n"));
+
+//   return input.join("");
+// }
 
 export async function cliPrompt(
   message: string,
@@ -9,70 +119,141 @@ export async function cliPrompt(
 ): Promise<string> {
   const encoder = new TextEncoder();
   const input: string[] = [];
+  let cursorPos = 0;
+  let range: [number, number] | undefined;
 
-  await Deno.stdin.setRaw(true);
-
-  const cursorVisible = Cursor["visible"];
   Cursor.show();
 
-  let range: [number, number] = [0, 1];
-  if (block) {
-    range = block.setLines([message + " "]);
-  } else {
-    Deno.stdout.writeSync(encoder.encode(message + " "));
-  }
-
-  const buf = new Uint8Array(1);
-  while (true) {
-    const n = await Deno.stdin.read(buf);
-    if (n === null) break;
-    const byte = buf[0];
-
-    if (byte === 3) { // Ctrl+C
-      Deno.stdin.setRaw(false);
-      block?.["layout"]?.clearAll();
-      block?.clear();
-      Deno.exit(130);
-    }
-
-    if (byte === 13) { // Enter
-      break;
-    } else if (byte === 127 || byte === 8) { // Backspace
-      input.pop();
-    } else if (byte >= 32 && byte <= 126) { // Printable chars
-      input.push(String.fromCharCode(byte));
-    }
+  const im = InputManager.getInstance();
+  im.activate();
 
+  const render = () => {
     const line = message + " " + input.join("");
+    const moveTo = `\x1b[${message.length + 2 + cursorPos}G`;
+
     if (block) {
+      block.setPostRenderAction(() => {
+        Deno.stdout.writeSync(encoder.encode(moveTo));
+      });
       range = block.setLines([line], range);
     } else {
-      Deno.stdout.writeSync(encoder.encode("\r\x1b[K" + line));
+      Deno.stdout.writeSync(encoder.encode("\r\x1b[K" + line + moveTo));
+    }
+  };
+
+  const exit = () => {
+    im.removeEventListener("enter", onEnter);
+    im.removeEventListener("backspace", onBackspace);
+    im.removeEventListener("delete", onDelete);
+    im.removeEventListener("arrow-left", onLeft);
+    im.removeEventListener("arrow-right", onRight);
+    im.removeEventListener("char", onKey);
+    Cursor.hide();
+  };
+
+  let resolve: null | ((value: string) => void) = null;
+
+  const onEnter = () => {
+    exit();
+    resolve?.(input.join(""));
+  };
+
+  const onBackspace = () => {
+    if (cursorPos > 0) {
+      input.splice(cursorPos - 1, 1);
+      cursorPos--;
+      render();
+    }
+  };
+
+  const onDelete = () => {
+    if (cursorPos < input.length) {
+      input.splice(cursorPos, 1);
+      render();
+    }
+  };
+
+  const onLeft = () => {
+    if (cursorPos > 0) {
+      cursorPos--;
+      render();
+    }
+  };
+
+  const onRight = () => {
+    if (cursorPos < input.length) {
+      cursorPos++;
+      render();
+    }
+  };
+
+  const onKey = (e: Event) => {
+    const ke = (e as CLICharEvent).detail;
+    input.splice(cursorPos, 0, ke.char);
+    cursorPos++;
+    render();
+  };
+
+  render();
+
+  return await new Promise<string>((res) => {
+    resolve = res;
+    im.addEventListener("enter", onEnter);
+    im.addEventListener("backspace", onBackspace);
+    im.addEventListener("delete", onDelete);
+    im.addEventListener("arrow-left", onLeft);
+    im.addEventListener("arrow-right", onRight);
+    im.addEventListener("char", onKey);
+  });
+}
+
+export async function cliConfirm(message: string, block?: TerminalBlock) {
+  const im = InputManager.getInstance();
+  let inpout = "";
+  function isValidInput(input: string) {
+    switch (input) {
+      case "y":
+      case "n":
+        return inpout.length === 0;
+      case "e":
+        return inpout === "y";
+      case "s":
+        return inpout === "ye";
+      case "o":
+        return inpout === "n";
+      default:
+        return false;
     }
   }
 
-  await Deno.stdin.setRaw(false);
-  if (!cursorVisible) {
-    Cursor.hide();
+  function onKey(e: CLICharEvent) {
+    const ke = e.detail;
+    const char = String.fromCharCode(ke.key);
+    if (isValidInput(char)) {
+      inpout += char;
+    } else {
+      e.stopImmediatePropagation();
+    }
   }
-  Deno.stdout.writeSync(encoder.encode("\n"));
-
-  return input.join("");
-}
-
-export function cliConfirm(message: string, block?: TerminalBlock) {
-  return cliPrompt(message + " (y/n)", block).then((v) =>
-    v.toLowerCase() === "y"
+  im.addEventListener("char", onKey);
+  const value = await cliPrompt(message + " (y/n)", block).then((v) =>
+    v.charAt(0).toLowerCase() === "y"
   );
+  im.removeEventListener("char", onKey);
+  return value;
 }
 
-export function cliAlert(message: string, block?: TerminalBlock) {
-  return cliPrompt(
+export async function cliAlert(message: string, block?: TerminalBlock) {
+  const im = InputManager.getInstance();
+  const onKey = (e: CLICharEvent) => {
+    e.stopImmediatePropagation();
+  };
+  im.addEventListener("char", onKey);
+  await cliPrompt(
     message + colorize(" Press Enter to continue", "gray"),
     block,
-  ).then((v) => {
-    return v;
-  });
+  );
+  im.removeEventListener("char", onKey);
 }
 
 export function cliLog(
@@ -92,18 +273,29 @@ if (import.meta.main) {
   const layout = new TerminalLayout();
   const title = new TerminalBlock();
   const block = new TerminalBlock();
+  const footer = new TerminalBlock();
   block.setPreserveHistory(true);
   // ScrollManager.enable(block);
   title.setLines(["Hello, World!"]);
   title.setFixedHeight(1);
 
+  footer.setLines(["Press Ctrl+C to exit"]);
+  footer.setFixedHeight(1);
+
   layout.register("title", title);
   layout.register("block", block);
+  layout.register("footer", footer);
+
+  InputManager.addEventListener("exit", () => {
+    layout.clearAll();
+    // console.clear();
+    Deno.exit(0);
+  });
 
   Deno.addSignalListener("SIGINT", () => {
     layout.clearAll();
     // console.clear();
-    Deno.exit(0);
+    // Deno.exit(0);
   });
   const name = await cliPrompt("Enter your name:", block);
   cliLog(`Hello, ${name}!`, block);

cli/selectMenu.ts

@@ -1,6 +1,8 @@
 import type { callback } from "../types.ts";
+import { type CLICharEvent, InputManager } from "./InputManager.ts";
+import { cliLog } from "./prompts.ts";
 import { colorize } from "./style.ts";
-import { TerminalBlock } from "./TerminalLayout.ts";
+import { TerminalBlock, TerminalLayout } from "./TerminalLayout.ts";
 
 interface ISelectMenuConfig {
   terminalBlock?: TerminalBlock;
@@ -62,50 +64,65 @@ export async function selectMenuInteractive(
 
   let inputBuffer = "";
 
-  // Function to handle input
-  async function handleInput() {
-    const buf = new Uint8Array(3); // arrow keys send 3 bytes
-    while (true) {
-      renderMenu();
-      const n = await Deno.stdin.read(buf);
-      if (n === null) break;
+  const im = InputManager.getInstance();
+  im.activate();
 
-      const [a, b, c] = buf;
+  const onUp = (e: Event) => {
+    e.stopImmediatePropagation();
+    selected = (selected - 1 + options.length) % options.length;
+    renderMenu();
+  };
 
-      if (a === 3) {
-        Deno.stdin.setRaw(false);
-        terminalBlock?.["layout"]?.clearAll();
-        Deno.exit(130);
-      }
-
-      if (a === 13) { // Enter key
-        if (inputBuffer) {
-          const parsed = parseInt(inputBuffer);
-          if (!isNaN(parsed)) {
-            selected = parsed - 1;
-          }
-          inputBuffer = "";
-        }
-        break;
-      } else if (a === 27 && b === 91) { // Arrow keys
-        inputBuffer = "";
-        if (c === 65) { // Up
-          selected = (selected - 1 + options.length) % options.length;
-        } else if (c === 66) { // Down
-          selected = (selected + 1) % options.length;
-        }
-      } else if (a >= 48 && a <= 57) {
-        inputBuffer += String.fromCharCode(a);
-      } else if (a === 8) {
-        inputBuffer = inputBuffer.slice(0, -1);
+  const onDown = (e: Event) => {
+    e.stopImmediatePropagation();
+    selected = (selected + 1) % options.length;
+    renderMenu();
+  };
+
+  const onKey = (e: CLICharEvent) => {
+    e.stopImmediatePropagation();
+    const ke = e.detail;
+    const char = String.fromCharCode(ke.key);
+    inputBuffer += char;
+  };
+
+  const onBackspace = (e: Event) => {
+    e.stopImmediatePropagation();
+    inputBuffer = inputBuffer.slice(0, -1);
+  };
+
+  let resolve: null | ((value: string) => void) = null;
+
+  const onEnter = (e: Event) => {
+    e.stopImmediatePropagation();
+    if (inputBuffer) {
+      const parsed = parseInt(inputBuffer);
+      if (!isNaN(parsed)) {
+        selected = parsed - 1;
       }
+      inputBuffer = "";
     }
+    im.removeEventListener("arrow-up", onUp);
+    im.removeEventListener("arrow-down", onDown);
+    im.removeEventListener("char", onKey);
+    im.removeEventListener("backspace", onBackspace);
+    im.removeEventListener("enter", onEnter);
+    resolve?.(options[selected]);
+  };
+
+  renderMenu();
+  await new Promise<string>((res) => {
+    resolve = res;
+    im.addEventListener("char", onKey);
+    im.addEventListener("backspace", onBackspace);
+    im.addEventListener("enter", onEnter);
+    im.addEventListener("arrow-up", onUp);
+    im.addEventListener("arrow-down", onDown);
+  });
 
-    Deno.stdin.setRaw(false);
-    return options[selected];
-  }
   terminalBlock.setLines(["Selected: " + options[selected]], range);
-  return await handleInput();
+
+  return options[selected];
 }
 
 export async function multiSelectMenuInteractive(
@@ -117,9 +134,7 @@ export async function multiSelectMenuInteractive(
   let selected = 0;
   let selectedOptions: number[] = config?.initialSelections || [];
 
-  const rawValues = new Set(
-    options.map((i) => typeof i === "string" ? i : i[0]),
-  ).values().toArray();
+  const rawValues = options.map((i) => typeof i === "string" ? i : i[0]);
 
   if (rawValues.length !== options.length) {
     throw new Error("Duplicate options in multi-select menu");
@@ -158,44 +173,52 @@ export async function multiSelectMenuInteractive(
     range = terminalBlock.setLines(lines, range);
   }
 
-  // Function to handle input
-  async function handleInput() {
-    const buf = new Uint8Array(3); // arrow keys send 3 bytes
-    while (true) {
-      renderMenu();
-      const n = await Deno.stdin.read(buf);
-      if (n === null) break;
+  const im = InputManager.getInstance();
+  im.activate();
 
-      const [a, b, c] = buf;
+  let resolve = null as null | ((value: number[]) => void);
 
-      if (a === 3) {
-        Deno.stdin.setRaw(false);
-        terminalBlock?.["layout"]?.clearAll();
-        Deno.exit(130);
-      }
+  const onUp = (e: Event) => {
+    e.stopImmediatePropagation();
+    selected = (selected - 1 + options.length) % options.length;
+    renderMenu();
+  };
 
-      if (a === 13) { // Enter key
-        break;
-      } else if (a === 27 && b === 91) { // Arrow keys
-        if (c === 65) { // Up
-          selected = (selected - 1 + options.length) % options.length;
-        } else if (c === 66) { // Down
-          selected = (selected + 1) % options.length;
-        }
-      } else if (a === 32) { // Space
-        Deno.stdout.writeSync(new TextEncoder().encode("\x07"));
-        if (selectedOptions.includes(selected)) {
-          selectedOptions = selectedOptions.filter((i) => i !== selected);
-        } else {
-          selectedOptions.push(selected);
-        }
-      }
+  const onDown = (e: Event) => {
+    e.stopImmediatePropagation();
+    selected = (selected + 1) % options.length;
+    renderMenu();
+  };
+
+  const onSpace = (e: CLICharEvent) => {
+    if (e.detail.char !== " ") return;
+    e.stopImmediatePropagation();
+    if (selectedOptions.includes(selected)) {
+      selectedOptions = selectedOptions.filter((i) => i !== selected);
+    } else {
+      selectedOptions.push(selected);
     }
+    renderMenu();
+  };
 
-    Deno.stdin.setRaw(false);
-    return selectedOptions;
-  }
-  const selections = await handleInput();
+  const onEnter = (e: Event) => {
+    e.stopImmediatePropagation();
+    resolve?.(selectedOptions);
+    im.removeEventListener("arrow-up", onUp);
+    im.removeEventListener("arrow-down", onDown);
+    im.removeEventListener("char", onSpace);
+    im.removeEventListener("enter", onEnter);
+  };
+
+  renderMenu();
+
+  const selections = await new Promise<number[]>((res) => {
+    resolve = res;
+    im.addEventListener("arrow-up", onUp);
+    im.addEventListener("arrow-down", onDown);
+    im.addEventListener("char", onSpace);
+    im.addEventListener("enter", onEnter);
+  });
   for (const optionI of selections) {
     const option = options[optionI];
     if (Array.isArray(option)) {
@@ -208,17 +231,17 @@ export async function multiSelectMenuInteractive(
 }
 
 if (import.meta.main) {
-  // const layout = new TerminalLayout();
-  // const block = new TerminalBlock();
-  // const titleBlock = new TerminalBlock();
-  // const postBlock = new TerminalBlock();
-  // titleBlock.setLines(["An incredible fruit menu!"]);
-  // postBlock.setLines(["I'm here too!"]);
-  // titleBlock.setFixedHeight(1);
-  // postBlock.setFixedHeight(1);
-  // layout.register("title", titleBlock);
-  // layout.register("block", block);
-  // layout.register("post", postBlock);
+  const layout = new TerminalLayout();
+  const block = new TerminalBlock();
+  const titleBlock = new TerminalBlock();
+  const postBlock = new TerminalBlock();
+  InputManager.addEventListener("exit", () => layout.clearAll());
+  titleBlock.setLines(["An incredible fruit menu!"]);
+  postBlock.setLines(["I'm here too!"]);
+  titleBlock.setFixedHeight(1);
+  postBlock.setFixedHeight(1);
+  layout.register("title", titleBlock);
+  layout.register("block", block);
 
   // const val = await selectMenuInteractive("choose a fruit", [
   //   "apple",
@@ -276,8 +299,8 @@ if (import.meta.main) {
     "ximenia",
     "yuzu",
     "zucchini",
-  ]);
-  console.log(val);
+  ], { terminalBlock: block });
+  cliLog(val || "No value");
 
   // Deno.stdout.writeSync(new TextEncoder().encode("\x07"));
 }

deno.json

@@ -1,10 +1,10 @@
 {
   "name": "@bearmetal/pdf-tools",
-  "version": "1.0.0",
+  "version": "1.0.8-l",
   "license": "GPL 3.0",
   "tasks": {
-    "dev": "deno run -A --env-file=.env --watch main.ts",
-    "compile": "deno compile -o compare-form-fields.exe --target x86_64-pc-windows-msvc -R ./main.ts",
+    "dev": "deno run -A --env-file=.env main.ts",
+    "compile": "deno compile -o pdf-tools.exe --target x86_64-pc-windows-msvc --include ./asciiart.txt -A ./main.ts",
     "install": "deno install -fgq --import-map ./deno.json -n checkfields -R ./main.ts",
     "debug": "deno run -A --env-file=.env --inspect-wait --watch main.ts"
   },
@@ -12,7 +12,8 @@
     "@std/assert": "jsr:@std/assert@1",
     "@std/path": "jsr:@std/path@^1.0.9",
     "pdf-lib": "npm:pdf-lib@^1.17.1",
-    "util/": "./util/"
+    "util/": "./util/",
+    "@/": "./"
   },
   "exports": {
     ".": "./main.ts"

main.ts

@@ -1,5 +1,10 @@
 /// <reference types="./types.ts" />
 import { PdfToolsCli } from "./cli/index.ts";
+// import { log } from "util/logfile.ts";
 
+// try {
 const app = new PdfToolsCli();
 app.run();
+// } catch (e) {
+//   // log(e);
+// }

tools/listFormFields.ts

@@ -20,31 +20,10 @@ export class ListFormFields implements ITool {
 
     const form = await loadPdfForm(pdfPath);
     const fields = form.getFields();
-    const height = this.block.getRenderHeight() - 1;
-    const fieldNames = fields.sort((a, b) => {
-      const aRect = a.acroField.getWidgets().find((e) => e.Rect())?.Rect()
-        ?.asRectangle();
-      const bRect = b.acroField.getWidgets().find((e) => e.Rect())?.Rect()
-        ?.asRectangle();
-
-      if (aRect && bRect) {
-        if (aRect.x !== bRect.x) {
-          return aRect.x - bRect.x; // Sort left to right
-        } else {
-          return bRect.y - aRect.y; // If x is equal, sort top to bottom
-        }
-      }
-      return a.getName().localeCompare(b.getName());
-    }).map((f) => f.getName());
-    const maxLength = Math.max(...fieldNames.map((f) => f.length)) + 4;
+    const fieldNames = fields.map((f) => f.getName());
     const lines = [];
-    for (let i = 0; i < height; i++) {
-      let line = "";
-      for (let j = 0; j < fieldNames.length; j += height) {
-        const fieldName = fieldNames[i + j] ?? "";
-        line += fieldName.padEnd(maxLength, " ");
-      }
-      lines.push(line);
+    for (const fieldName of fieldNames) {
+      lines.push(fieldName);
     }
     this.block.setLines(lines, [0, 1]);
     await cliAlert("", this.block);

util/asciiArt.ts

@@ -1,30 +1,30 @@
-export async function getAsciiArt(art: string) {
-  const artFilePath = Deno.env.get("BEARMETAL_ASCII_PATH") ||
-    getBearmetalAsciiPath();
-  if (!artFilePath) return art;
-  let artFileText: string;
-  if (artFilePath.startsWith("http")) {
-    artFileText = await fetch(artFilePath).then((res) => res.text());
-  } else {
-    artFileText = await Deno.readTextFile(artFilePath);
-  }
-  const parserRX = /begin\s+(\w+)\s*\n([\s\S]*?)\s*end\s*/g;
-  let result = parserRX.exec(artFileText);
+import { join } from "@std/path";
 
-  while (result !== null) {
-    const [_, name, artText] = result;
-    if (name === art) return artText;
-    result = parserRX.exec(artFileText);
+export async function getAsciiArt(art: string) {
+  try {
+    const artFilePath =
+      Deno.env.get("BEARMETAL_ASCII_PATH") || import.meta.dirname
+        ? join(import.meta.dirname || "", "../asciiart.txt")
+        : "https://git.cyborggrizzly.com/BearMetal/pdf-tools/raw/branch/main/asciiart.txt";
+    let artFileText: string;
+    if (artFilePath?.startsWith("http")) {
+      artFileText = await fetch(artFilePath).then((res) => res.text());
+    } else {
+      artFileText = await Deno.readTextFile(
+        artFilePath,
+      );
+    }
+    const parserRX = /begin\s+(\w+)\s*\n([\s\S]*?)\s*end\s*/g;
+    let result = parserRX.exec(artFileText);
+
+    while (result !== null) {
+      const [_, name, artText] = result;
+      if (name === art) return artText;
+      result = parserRX.exec(artFileText);
+    }
+  } catch (e) {
+    console.log(e);
+    alert();
   }
   return art;
 }
-
-function getBearmetalAsciiPath() {
-  const filenameRX = /asciiarts?\.txt$/;
-  for (const filename of Deno.readDirSync(".")) {
-    if (filename.isFile && filenameRX.test(filename.name)) {
-      return filename.name;
-    }
-  }
-  return null;
-}

util/caseManagement.ts

@@ -11,9 +11,45 @@ function lowerToTrainCase(str: string) {
   );
 }
 
-function lowerToCamelCase(str: string) {
-  return str.trim().replace(/(?:\s)\w/g, (match) => match.toUpperCase())
-    .replaceAll(" ", "");
+/**
+ * @param str
+ * @returns camelCased string (single letter words are lower cased, e.g. SSN -> ssn)
+ */
+function lowerToCamelCase(str: string): string {
+  const words = str.trim().split(/\s+/);
+  const result: string[] = [];
+  let i = 0;
+
+  while (i < words.length) {
+    if (words[i].length === 1) {
+      // We’ve hit the start of a chain of single-letter words
+      let j = i;
+      while (j < words.length && words[j].length === 1) {
+        j++;
+      }
+      const chainIsAtStart = i === 0;
+      // Process that entire chain
+      for (let k = i; k < j; k++) {
+        result[k] = chainIsAtStart
+          ? words[k].toLowerCase()
+          : words[k].toUpperCase();
+      }
+      i = j;
+    } else {
+      // Normal multi-letter word
+      if (i === 0) {
+        // first word: all lower
+        result[i] = words[i].toLowerCase();
+      } else {
+        // subsequent words: capitalize first letter
+        result[i] = words[i][0].toUpperCase() +
+          words[i].slice(1).toLowerCase();
+      }
+      i++;
+    }
+  }
+
+  return result.join("");
 }
 
 function lowerToSnakeCase(str: string) {
@@ -88,10 +124,10 @@ function coerceCaseToLower(str: string, caseType: CaseType) {
     case "macro":
     case "snake":
     case "upper":
-      return str.replace("_", " ").toLowerCase();
+      return str.replaceAll("_", " ").toLowerCase();
     case "train":
     case "kebab":
-      return str.replace("-", " ").toLowerCase();
+      return str.replaceAll("-", " ").toLowerCase();
     default:
       return str.toLowerCase();
   }
@@ -124,3 +160,7 @@ export function toCase(str: string, toCase: CaseType) {
       return str;
   }
 }
+
+if (import.meta.main) {
+  console.log(toCase("SSN", "camel"));
+}

util/logfile.ts

@@ -7,9 +7,9 @@ const logFile = Deno.openSync("./log.txt", {
 
 logFile.truncateSync(0);
 
-export function log(message: any) {
+export function log(...message: any) {
   if (typeof message === "object") {
-    message = JSON.stringify(message);
+    message = Deno.inspect(message);
   }
   logFile.writeSync(new TextEncoder().encode(message + "\n"));
 }

util/saveLoadPdf.ts

@@ -15,10 +15,10 @@ export async function loadPdf(path: string) {
 export async function savePdf(doc: PDFDocument, path: string) {
   doc.getForm().getFields().forEach((field) => {
     if (field instanceof PDFTextField) {
-      field.disableRichFormatting();
+      field.disableRichFormatting?.();
     }
   });
-  const pdfBytes = await doc.save();
+  const pdfBytes = await doc.save({ updateFieldAppearances: true });
   if (Deno.env.get("DRYRUN") || path.includes("dryrun")) return;
   await Deno.writeFile(path, pdfBytes);
 }