Merge pull request 'fix: I really am thick' (#14) from 1.0.2 into main

Reviewed-on: #14

.gitea/workflows/release.yml

@@ -0,0 +1,48 @@
+name: Create Version Tag
+
+on:
+  push:
+    branches:
+      - main
+      - "prerelease-*"
+
+jobs:
+  version-check:
+    runs-on: ubuntu-latest
+    outputs:
+      tag_created: ${{ steps.tag.outputs.tag_created }}
+      tag_name: ${{ steps.tag.outputs.tag_name }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run version check
+        id: tag
+        uses: https://git.cyborggrizzly.com/bearmetal/ci-actions/version-check@v1
+
+  build-release:
+    if: needs.version-check.outputs.tag_created == 'true'
+    needs: version-check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Build and release binaries
+        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 --include asciiart.txt"
+        env:
+          GITEA_TOKEN: ${{ secrets.GIT_PAT }}
+
+  publish-release:
+    needs: build-release
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Deno
+        uses: denoland/setup-deno@v1
+        with:
+          deno-version: 2.3.1
+
+      - name: Publish to JSR
+        run: deno publish --token ${{ secrets.JSR_PAT }}

.gitignore

@@ -1,3 +1,6 @@
 *.exe
 
 .env
+
+log.txt
+log

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/TerminalLayout.ts

@@ -1,3 +1,5 @@
+import { Cursor } from "./cursor.ts";
+
 export class TerminalLayout {
   private static ALT_BUFFER_ENABLE = "\x1b[?1049h";
   private static ALT_BUFFER_DISABLE = "\x1b[?1049l";
@@ -12,10 +14,16 @@ export class TerminalLayout {
   constructor() {
     Deno.stdout.writeSync(
       new TextEncoder().encode(
-        TerminalLayout.ALT_BUFFER_ENABLE + TerminalLayout.CURSOR_HIDE,
+        TerminalLayout.ALT_BUFFER_ENABLE,
       ),
     );
+    Cursor.hide();
     this.height = Deno.consoleSize().rows;
+
+    Deno.addSignalListener("SIGINT", () => {
+      this.clearAll();
+      Deno.exit(0);
+    });
   }
 
   register(name: string, block: TerminalBlock, fixedHeight?: number) {
@@ -36,7 +44,9 @@ export class TerminalLayout {
       clearTimeout(this.debounceTimer);
     }
     this.debounceTimer = setTimeout(
-      () => this.renderLayout(),
+      () => {
+        this.renderLayout();
+      },
       this.debounceDelay,
     );
   }
@@ -68,17 +78,28 @@ export class TerminalLayout {
       block.renderInternal(usedLines + 1);
       usedLines += lines.length;
     }
+    for (const name of this.layoutOrder) {
+      const block = this.blocks[name];
+      block.runPostRenderAction?.();
+    }
   }
 
   clearAll() {
-    Deno.stdout.writeSync(
-      new TextEncoder().encode(
-        TerminalLayout.ALT_BUFFER_DISABLE + TerminalLayout.CURSOR_SHOW,
-      ),
-    );
     for (const name of this.layoutOrder) {
       this.blocks[name].clear();
     }
+    Deno.stdout.writeSync(
+      new TextEncoder().encode(
+        TerminalLayout.ALT_BUFFER_DISABLE,
+      ),
+    );
+    Cursor.show();
+  }
+
+  clear() {
+    for (let i = 0; i < this.height; i++) {
+      Deno.stdout.writeSync(new TextEncoder().encode("\x1b[2K\x1b[1E"));
+    }
   }
 
   get availableHeight() {
@@ -96,14 +117,26 @@ export class TerminalBlock {
   private renderHeight: number = 0;
   private lastRenderRow = 1;
 
+  private lastRendered: string[] = [];
+
+  private preserveHistory = false;
+
   constructor(private prepend: string = "") {}
 
+  setPreserveHistory(preserveHistory: boolean) {
+    this.preserveHistory = preserveHistory;
+  }
+
   setLayout(layout: TerminalLayout) {
     this.layout = layout;
   }
 
-  setLines(lines: string[]) {
-    this.lines = lines;
+  setLines(lines: string[], range?: [number, number]) {
+    if (range && this.preserveHistory) {
+      this.lines.splice(range[0], range[1], ...lines);
+    } else {
+      this.lines = this.preserveHistory ? this.lines.concat(lines) : lines;
+    }
     if (this.scrollOffset > lines.length - 1) {
       this.scrollOffset = Math.max(0, lines.length - 1);
     }
@@ -115,6 +148,19 @@ export class TerminalBlock {
       );
       this.renderInternal();
     }
+    range = [
+      range?.[0] ?? this.lines.length - lines.length,
+      range ? range[0] + lines.length : this.lines.length,
+    ];
+    return range;
+  }
+
+  append(lines: string[]) {
+    this.lines.push(...lines);
+    this.scrollTo(this.lines.length - 1);
+    if (this.layout) {
+      this.layout.requestRender();
+    }
   }
 
   scrollTo(offset: number) {
@@ -144,15 +190,6 @@ export class TerminalBlock {
 
   setRenderLines(lines: string[]) {
     this.renderLines = lines;
-    this.renderedLineCount = lines.reduce(
-      (count, line) =>
-        count +
-        Math.ceil(
-          (this.prepend.length + line.length) /
-            (Deno.consoleSize().columns || 80),
-        ),
-      0,
-    );
   }
 
   setRenderHeight(height: number) {
@@ -164,17 +201,39 @@ export class TerminalBlock {
   }
 
   renderInternal(startRow?: number) {
-    this.lastRenderRow = startRow ?? this.lastRenderRow;
-    this.clear();
-    let output = this.renderLines.map((line) => `${this.prepend}${line}\x1b[K`)
-      .join("\n");
-    if (startRow !== undefined) {
-      const moveCursor = `\x1b[${startRow};1H`;
-      output = moveCursor + output;
+    const outputLines: string[] = [];
+
+    for (let i = 0; i < this.renderLines.length; i++) {
+      const line = `${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");
       }
-    Deno.stdout.writeSync(
-      new TextEncoder().encode(output),
-    );
+    }
+
+    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() {
@@ -184,7 +243,11 @@ export class TerminalBlock {
     for (let i = 0; i < this.renderedLineCount; i++) {
       Deno.stdout.writeSync(new TextEncoder().encode(`\x1b[2K\x1b[1E`));
     }
-    this.renderedLineCount = 0;
+  }
+
+  clearAll() {
+    this.clear();
+    this.lines = [];
   }
 
   setFixedHeight(height: number) {
@@ -199,6 +262,17 @@ 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/argParser.ts

@@ -1,5 +1,6 @@
-export class ArgParser {
+export class ArgParser<T extends Record<string, string[]>> {
   private args: string[];
+  private flags: Map<keyof T, boolean> = new Map();
 
   constructor(args: string[]) {
     this.args = args;
@@ -11,7 +12,22 @@ export class ArgParser {
     return this.args[index + 1];
   }
 
-  get flags() {
+  setFlagDefs(flagDefs: T) {
+    for (const [flag, defs] of Object.entries(flagDefs)) {
+      for (const def of defs) {
+        if (this.argFlags.includes(def)) {
+          this.flags.set(flag, true);
+        }
+      }
+    }
+    return this;
+  }
+
+  getFlag(flag: keyof T) {
+    return this.flags.get(flag);
+  }
+
+  get argFlags() {
     return this.args.filter((arg) => arg.startsWith("-"));
   }
 
@@ -26,6 +42,9 @@ export class ArgParser {
   get task() {
     return this.nonFlags[0];
   }
+  get taskArgs() {
+    return this.nonFlags.slice(1);
+  }
 
   static parse(args: string[]) {
     return new ArgParser(args);

cli/cursor.ts

@@ -0,0 +1,29 @@
+export class Cursor {
+  private static visible = true;
+
+  static show() {
+    this.visible = true;
+    Deno.stdout.writeSync(new TextEncoder().encode("\x1b[?25h"));
+  }
+
+  static hide() {
+    this.visible = false;
+    Deno.stdout.writeSync(new TextEncoder().encode("\x1b[?25l"));
+  }
+
+  static restoreVisibility() {
+    if (this.visible) {
+      this.show();
+    } else {
+      this.hide();
+    }
+  }
+
+  static savePosition() {
+    Deno.stdout.writeSync(new TextEncoder().encode("\x1b7"));
+  }
+
+  static restorePosition() {
+    Deno.stdout.writeSync(new TextEncoder().encode("\x1b8"));
+  }
+}

cli/forceArgs.ts

@@ -0,0 +1,29 @@
+import { cliPrompt } from "./prompts.ts";
+import type { TerminalBlock } from "./TerminalLayout.ts";
+
+type prompt = [string, (v?: string) => boolean] | string;
+
+export async function forceArgs(
+  args: string[],
+  prompts: prompt[],
+  block?: TerminalBlock,
+) {
+  const newArgs: string[] = [];
+  for (const [i, arg] of args.entries()) {
+    if (typeof prompts[i] === "string") {
+      let val = arg;
+      while (!val) {
+        val = await cliPrompt(prompts[i], block) || "";
+      }
+      newArgs.push(val);
+    } else {
+      const [promptText, validation] = prompts[i];
+      let val = arg;
+      while (!validation(val)) {
+        val = await cliPrompt(promptText, block) || "";
+      }
+      newArgs.push(val);
+    }
+  }
+  return newArgs;
+}

cli/index.ts

@@ -1,85 +1,156 @@
 import { getAsciiArt } from "../util/asciiArt.ts";
 import { toCase } from "util/caseManagement.ts";
 import { ArgParser } from "./argParser.ts";
-import { colorize } from "./colorize.ts";
+import { colorize } from "./style.ts";
 import { selectMenuInteractive } from "./selectMenu.ts";
 import { TerminalBlock, TerminalLayout } from "./TerminalLayout.ts";
+import { cliAlert, cliLog } from "./prompts.ts";
+import type { ITool } from "../types.ts";
+
+// Register tools here (filename, no extension)
+const toolRegistry: [string, Promise<{ default: ITool }>][] = [
+  ["checkCode", import("../tools/checkCode.ts")],
+  ["fieldRename", import("../tools/fieldRename.ts")],
+  ["listFormFields", import("../tools/listFormFields.ts")],
+];
 
 export class PdfToolsCli {
   private tools: Map<string, ITool> = new Map();
   private terminalLayout = new TerminalLayout();
+  closeMessage?: string;
 
-  private args = ArgParser.parse(Deno.args);
+  private args = ArgParser.parse(Deno.args).setFlagDefs({
+    help: ["-h", "--help"],
+    banana: ["-b", "--banana"],
+  });
 
-  async importTools(tools?: string) {
-    tools = tools?.replace(/\/$/, "").replace(/^\.?\//, "") || "tools";
-    for (const toolfile of Deno.readDirSync(tools)) {
-      if (toolfile.isFile) {
-        const tool = await import(
-          Deno.cwd() + "/" + tools + "/" + toolfile.name
-        );
-        if (tool.default) {
+  async importTools() {
+    for (const [name, toolfile] of toolRegistry) {
+      const t = await toolfile;
+      try {
+        if (t.default) {
           this.tools.set(
-            toCase(toolfile.name.replace(".ts", ""), "title"),
-            tool.default,
+            toCase(name, "title"),
+            t.default,
           );
         }
+      } catch (e) {
+        cliLog(e + "\n", this.terminalLayout.getBlock("body"));
       }
     }
   }
 
   private async banana() {
     const asciiArt = await getAsciiArt("banana");
-    console.log(colorize(asciiArt, "yellow"));
+    this.closeMessage = colorize(asciiArt, "yellow");
   }
 
-  private help() {
-    console.log("BearMetal PDF CLI");
+  private async help() {
+    this.terminalLayout.clear();
+    this.ensmallenHeader("Help");
+    const bodyBlock = this.terminalLayout.getBlock("body");
+    bodyBlock.clearAll();
+    await cliAlert("BearMetal PDF CLI\n", bodyBlock);
+    await this.embiggenHeader();
   }
 
   public async run() {
     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;
+      } else if (this.args.nonFlags.length === 0 || !this.args.task) {
+        this.embiggenHeader();
+        await this.toolMenu();
+      } else {
+        const task = this.args.task;
+        await this.runTool(toCase(task, "title"));
+      }
+    } finally {
+      this.cleanup();
+    }
+  }
+
+  private cleanup() {
+    this.terminalLayout.clearAll();
+    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");
+    bodyBlock.clearAll();
+    bodyBlock.setPreserveHistory(false);
+    const selected = await selectMenuInteractive(
+      "Choose a tool",
+      tools.concat(["Help", "Exit"]),
+      {
+        terminalBlock: bodyBlock,
+      },
+    );
+    if (!selected) return;
+    if (selected === "Exit") {
+      return;
+    }
+    await this.runTool(selected);
+    await this.toolMenu();
+  }
+
+  private async runTool(toolName: string) {
+    if (toolName === "Help") {
+      return await this.help();
+    }
+    const tool = this.tools.get(toolName);
+    if (tool) {
+      this.ensmallenHeader(tool.name + " - " + tool.description);
+      const bodyBlock = this.terminalLayout.getBlock("body");
+      bodyBlock.clearAll();
+      tool.setBlock?.(bodyBlock);
+      if (this.args.getFlag("help")) {
+        await tool.help?.();
+      } else {
+        await tool.run(...this.args.taskArgs);
+        await tool.done?.();
+      }
+      await this.embiggenHeader();
+    } else {
+      this.closeMessage = "No tool found for " + toolName;
+    }
+  }
+
+  private ensmallenHeader(subtitle: string) {
+    this.terminalLayout.clear();
+    const titleBlock = this.terminalLayout.getBlock("title");
+    titleBlock.clear();
+    titleBlock.setFixedHeight(3);
+    titleBlock.setLines([
+      colorize("BearMetal PDF Tools", "porple"),
+      colorize(subtitle, "gray"),
+      "-=".repeat(Deno.consoleSize().columns / 2),
+    ]);
+  }
+
+  private async embiggenHeader() {
+    const titleBlock = this.terminalLayout.getBlock("title");
+    titleBlock.clear();
     const lines: string[] = [];
     for (const t of ["bearmetal:porple", "pdftools:cyan"]) {
       const [name, color] = t.split(":");
       const asciiArt = await getAsciiArt(name);
       lines.push(...colorize(asciiArt, color).split("\n"));
     }
-      const titleBlock = new TerminalBlock();
-      this.terminalLayout.register("title", titleBlock);
-      const bodyBlock = new TerminalBlock();
-      this.terminalLayout.register("body", bodyBlock);
     titleBlock.setFixedHeight(lines.length);
     titleBlock.setLines(lines);
-      if (Deno.args.length === 0) {
-        // console.log(
-        //   colorize("No tool specified. Importing all tools...", "gray"),
-        // );
-        await this.importTools();
-      }
-      this.toolMenu();
-    } finally {
-      this.terminalLayout.clearAll();
-    }
-  }
-
-  private async toolMenu() {
-    const tools = this.tools.keys().toArray();
-    const bodyBlock = this.terminalLayout.getBlock("body");
-    const selected = await selectMenuInteractive("Choose a tool", tools, {
-      terminalBlock: bodyBlock,
-    });
-    bodyBlock.clear();
-    if (!selected) return;
-    await this.runTool(selected);
-    this.toolMenu();
-  }
-
-  private async runTool(toolName: string) {
-    const tool = this.tools.get(toolName);
-    if (tool) {
-      await tool.run();
-      await tool.done?.();
-    }
   }
 }

cli/prompts.ts

@@ -0,0 +1,187 @@
+// deno-lint-disable-must-await-calls
+import { log } from "util/logfile.ts";
+import { Cursor } from "./cursor.ts";
+import { colorize } from "./style.ts";
+import { TerminalBlock, TerminalLayout } from "./TerminalLayout.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 function cliConfirm(message: string, block?: TerminalBlock) {
+  return cliPrompt(message + " (y/n)", block).then((v) =>
+    v.toLowerCase() === "y"
+  );
+}
+
+export function cliAlert(message: string, block?: TerminalBlock) {
+  return cliPrompt(
+    message + colorize(" Press Enter to continue", "gray"),
+    block,
+  ).then((v) => {
+    return v;
+  });
+}
+
+export function cliLog(
+  message: string | object | Array<unknown>,
+  block?: TerminalBlock,
+) {
+  if (!block) {
+    console.log(message);
+  } else {
+    if (typeof message === "object") message = Deno.inspect(message);
+    block.setLines(message.split("\n"));
+  }
+}
+
+if (import.meta.main) {
+  Cursor.hide();
+  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);
+
+  Deno.addSignalListener("SIGINT", () => {
+    layout.clearAll();
+    // console.clear();
+    Deno.exit(0);
+  });
+  const name = await cliPrompt("Enter your name:", block);
+  cliLog(`Hello, ${name}!`, block);
+  const single = await cliConfirm("Are you single?", block);
+  cliLog(single ? "Do you want to go out with me?" : "Okay", block);
+  // ScrollManager.enable(block);
+  const loopingConvo = [
+    "No response?",
+    "I guess that's okay",
+    "Maybe I'll see you next week?",
+    "Wow, really not going to say anything to me?",
+    "Well, if that's how you feel",
+  ];
+  let convo = 0;
+  setInterval(() => {
+    cliLog(loopingConvo[convo % loopingConvo.length], block);
+    convo++;
+  }, 2000);
+  // setTimeout(async () => {
+  //   await cliAlert("Well, if that's that...", block);
+  //   Deno.exit(0);
+  // }, 10000);
+}

cli/selectMenu.ts

@@ -1,9 +1,11 @@
-import { colorize } from "./colorize.ts";
-import { TerminalBlock, TerminalLayout } from "./TerminalLayout.ts";
+import type { callback } from "../types.ts";
+import { colorize } from "./style.ts";
+import { TerminalBlock } from "./TerminalLayout.ts";
 
 interface ISelectMenuConfig {
-  multiSelect?: boolean;
   terminalBlock?: TerminalBlock;
+  initialSelection?: number;
+  initialSelections?: number[];
 }
 
 export function selectMenu(items: string[]) {
@@ -21,18 +23,12 @@ export async function selectMenuInteractive(
   Deno.stdin.setRaw(true);
   let selected = 0;
 
-  if (config?.multiSelect) {
-    console.warn("Multi-select not implemented yet");
-    return null;
-  }
-
   const terminalBlock = config?.terminalBlock || new TerminalBlock();
   if (!config?.terminalBlock) {
     terminalBlock.setRenderHeight(Deno.consoleSize().rows);
   }
 
-  console.log(terminalBlock.getRenderHeight());
-
+  let range: [number, number] = [terminalBlock.lineCount, 1];
   function renderMenu() {
     const { rows } = Deno.consoleSize();
     const terminalHeight = terminalBlock.getRenderHeight() || rows;
@@ -54,7 +50,7 @@ export async function selectMenuInteractive(
       }
     }
 
-    terminalBlock.setLines(lines);
+    range = terminalBlock.setLines(lines, range);
   }
 
   function numberAndPadding(i: number, prefix?: string) {
@@ -78,7 +74,7 @@ export async function selectMenuInteractive(
 
       if (a === 3) {
         Deno.stdin.setRaw(false);
-        console.log("\nInterrupted\n");
+        terminalBlock?.["layout"]?.clearAll();
         Deno.exit(130);
       }
 
@@ -105,13 +101,112 @@ export async function selectMenuInteractive(
       }
     }
 
-    terminalBlock.clear();
     Deno.stdin.setRaw(false);
     return options[selected];
   }
+  terminalBlock.setLines(["Selected: " + options[selected]], range);
   return await handleInput();
 }
 
+export async function multiSelectMenuInteractive(
+  q: string,
+  options: string[] | [string, callback][],
+  config?: ISelectMenuConfig,
+): Promise<string[] | null> {
+  Deno.stdin.setRaw(true);
+  let selected = 0;
+  let selectedOptions: number[] = config?.initialSelections || [];
+
+  const rawValues = new Set(
+    options.map((i) => typeof i === "string" ? i : i[0]),
+  ).values().toArray();
+
+  if (rawValues.length !== options.length) {
+    throw new Error("Duplicate options in multi-select menu");
+  }
+
+  const terminalBlock = config?.terminalBlock || new TerminalBlock();
+  if (!config?.terminalBlock) {
+    terminalBlock.setRenderHeight(Deno.consoleSize().rows);
+  }
+
+  let range: [number, number] = [terminalBlock.lineCount, 1];
+  function renderMenu() {
+    const { rows } = Deno.consoleSize();
+    const terminalHeight = terminalBlock.getRenderHeight() || rows;
+    const maxHeight = Math.min(terminalHeight - 1, options.length);
+    let startPoint = Math.max(0, selected - Math.floor(maxHeight / 2));
+    const endPoint = Math.min(options.length, startPoint + maxHeight);
+    if (endPoint - startPoint < maxHeight) {
+      startPoint = Math.max(0, options.length - maxHeight);
+    }
+
+    const lines: string[] = [];
+    lines.push(colorize(q, "green"));
+    for (let i = startPoint; i < endPoint; i++) {
+      const option = rawValues[i];
+      const checkbox = selectedOptions.includes(i)
+        ? colorize("◼", "green")
+        : "◻";
+      if (i === selected) {
+        lines.push(`> ${checkbox} ${colorize(option, "porple")}`);
+      } else {
+        lines.push(`  ${checkbox} ${option}`);
+      }
+    }
+
+    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 [a, b, c] = buf;
+
+      if (a === 3) {
+        Deno.stdin.setRaw(false);
+        terminalBlock?.["layout"]?.clearAll();
+        Deno.exit(130);
+      }
+
+      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);
+        }
+      }
+    }
+
+    Deno.stdin.setRaw(false);
+    return selectedOptions;
+  }
+  const selections = await handleInput();
+  for (const optionI of selections) {
+    const option = options[optionI];
+    if (Array.isArray(option)) {
+      await option[1](option[0]);
+    }
+  }
+  const final = selectedOptions.map((i) => rawValues[i]);
+  terminalBlock.setLines(["Selected: " + final.join(", ")], range);
+  return final;
+}
+
 if (import.meta.main) {
   // const layout = new TerminalLayout();
   // const block = new TerminalBlock();
@@ -154,7 +249,7 @@ if (import.meta.main) {
   // layout.clearAll();
   // console.log(val);
 
-  const val = await selectMenuInteractive("choose a fruit", [
+  const val = await multiSelectMenuInteractive("choose a fruit", [
     "apple",
     "banana",
     "cherry",
@@ -183,4 +278,6 @@ if (import.meta.main) {
     "zucchini",
   ]);
   console.log(val);
+
+  // Deno.stdout.writeSync(new TextEncoder().encode("\x07"));
 }

deno.json

@@ -1,15 +1,35 @@
 {
   "name": "@bearmetal/pdf-tools",
+  "version": "1.0.7",
+  "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"
   },
   "imports": {
     "@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": {}
+  "exports": {
+    ".": "./main.ts"
+  },
+  "lint": {
+    "rules": {
+      "exclude": [
+        "no-explicit-any"
+      ],
+      "include": [
+        "require-await"
+      ]
+    },
+    "plugins": [
+      "./no-log.ts",
+      "./must_await_cli_prompts.ts"
+    ]
+  }
 }

deno.lock

@@ -1,8 +1,9 @@
 {
-  "version": "4",
+  "version": "5",
   "specifiers": {
     "jsr:@std/assert@1": "1.0.12",
     "jsr:@std/internal@^1.0.6": "1.0.6",
+    "jsr:@std/path@^1.0.9": "1.0.9",
     "npm:pdf-lib@^1.17.1": "1.17.1"
   },
   "jsr": {
@@ -14,6 +15,9 @@
     },
     "@std/internal@1.0.6": {
       "integrity": "9533b128f230f73bd209408bb07a4b12f8d4255ab2a4d22a1fd6d87304aca9a4"
+    },
+    "@std/path@1.0.9": {
+      "integrity": "260a49f11edd3db93dd38350bf9cd1b4d1366afa98e81b86167b4e3dd750129e"
     }
   },
   "npm": {
@@ -48,6 +52,7 @@
   "workspace": {
     "dependencies": [
       "jsr:@std/assert@1",
+      "jsr:@std/path@^1.0.9",
       "npm:pdf-lib@^1.17.1"
     ]
   }

main.ts

@@ -1,3 +1,4 @@
+/// <reference types="./types.ts" />
 import { PdfToolsCli } from "./cli/index.ts";
 
 const app = new PdfToolsCli();

must_await_cli_prompts.ts

@@ -0,0 +1,45 @@
+const TARGET_FUNCTIONS = new Set(["cliAlert", "cliPrompt", "cliConfirm"]);
+
+const plugin: Deno.lint.Plugin = {
+  name: "must-await-calls",
+  rules: {
+    "must-await-calls": {
+      create(context) {
+        return {
+          CallExpression(node) {
+            if (
+              node.callee.type !== "Identifier" ||
+              !TARGET_FUNCTIONS.has(node.callee.name)
+            ) return;
+
+            const parent = node.parent;
+
+            // Allow `await fetchData()`
+            if (parent?.type === "AwaitExpression") return;
+
+            // Allow `return fetchData()` or `return await fetchData()`
+            if (parent?.type === "ReturnStatement") return;
+
+            // Allow `fetchData().then(...)`
+            if (
+              parent?.type === "MemberExpression" &&
+              parent.property.type === "Identifier" &&
+              parent.property.name === "then"
+            ) return;
+
+            context.report({
+              node,
+              message:
+                `Call to "${node.callee.name}" must be awaited, returned, or .then-chained.`,
+              fix(fixer) {
+                return fixer.insertTextBefore(node, "await ");
+              },
+            });
+          },
+        };
+      },
+    },
+  },
+};
+
+export default plugin;

no-log.ts

@@ -0,0 +1,26 @@
+const plugin: Deno.lint.Plugin = {
+  name: "no-log",
+  rules: {
+    "no-log": {
+      create(context) {
+        return {
+          // Identifier(node) {
+          //   if (node.name === "log") {
+          //     context.report({
+          //       node,
+          //       message: "Do not use log",
+          //     });
+          //   }
+          // },
+          'ExpressionStatement > CallExpression[callee.name="log"]'(node) {
+            context.report({
+              node,
+              message: "Clean up log statements",
+            });
+          },
+        };
+      },
+    },
+  },
+};
+export default plugin;

testing/test.ts

@@ -0,0 +1,7 @@
+const thing: string = "";
+switch (thing) {
+  case "Text1":
+    break;
+  default:
+    break;
+}

tools/checkCode.ts

@@ -1,58 +1,75 @@
-import { PDFDocument } from "pdf-lib";
+import { forceArgs } from "../cli/forceArgs.ts";
+import { cliAlert, cliLog } from "../cli/prompts.ts";
+import { colorize } from "../cli/style.ts";
+import type { TerminalBlock } from "../cli/TerminalLayout.ts";
+import type { ITool } from "../types.ts";
 import { loadPdfForm } from "../util/saveLoadPdf.ts";
-import { callWithArgPrompt } from "util/call.ts";
 
-export async function checkFile(pdfPath: string, csPath: string) {
-  while (!pdfPath || !pdfPath.endsWith(".pdf")) {
-    pdfPath = prompt("Please provide path to PDF file:") || "";
-  }
-  while (!csPath || !csPath.endsWith(".cs")) {
-    csPath = prompt("Please provide path to CS class file:") || "";
-  }
-
-  const form = await loadPdfForm(pdfPath);
-
-  const fields = form.getFields();
-  const csFiles = await Promise.all(
-    csPath.split(",").map((c) => Deno.readTextFile(c.trim())),
-  );
-
-  const fieldNames: string[] = fields.map((f) => f.getName())
-    .filter((f) => {
-      const rx = new RegExp(
-        `(?<!//\s?)case ?"${f.replace(/\[\d\]/, "\\[\\?\\]")}"`,
-      );
-      return !csFiles.some((c) => rx.test(c));
-    })
-    .filter((f) => !f.toLowerCase().includes("signature"));
-
-  if (fieldNames.length) {
-    console.log(
-      "%cThe following field names are not present in the CS code",
-      "color: red",
-    );
-    console.log(fieldNames);
-    alert("Your princess is in another castle...");
-  } else {
-    console.log("%cAll form fields present", "color: lime");
-    alert("Ok!");
+function getCaseSyntaxPatternByFileExtension(
+  extenstion: string,
+  field: string,
+) {
+  switch (extenstion.trim().toLowerCase().replace(".", "")) {
+    case "cs":
+    case "js":
+    case "ts":
+    default:
+      return `(?<!//\s?)case ?"${field.replace(/\[\d\]/, `\\[\\?|\\d+\\]`)}"`;
   }
 }
 
 class CheckCode implements ITool {
   name = "checkcode";
-  description = "Checks if form fields are present in CS code";
-  help() {
-    console.log("Usage: checkcode <pdfPath> <csPath>");
+  description = "Checks if form fields are present in a given code file";
+  private block?: TerminalBlock;
+  setBlock(block: TerminalBlock) {
+    this.block = block;
+    this.block.setPreserveHistory(true);
+  }
+  async help() {
+    cliLog("Usage: checkcode <pdfPath> <csPath>", this.block);
+    await cliAlert("", this.block);
+  }
+  async run(pdfPath: string, codePaths: string) {
+    [pdfPath, codePaths] = await forceArgs([pdfPath, codePaths], [
+      "Please provide path to PDF file:",
+      "Please provide path(s) to code file(s) (comma separated for multiple):",
+    ], this.block);
+
+    const form = await loadPdfForm(pdfPath);
+
+    const fields = form.getFields();
+    const codeFiles: [string, string][] = codePaths.split(",").map((
+      c,
+    ) => [c, Deno.readTextFileSync(c.trim())]);
+
+    const fieldNames: string[] = fields.map((f) => f.getName())
+      .filter((f) => !f.toLowerCase().includes("signature"));
+    let unfound = fieldNames.slice();
+
+    for (const [path, content] of codeFiles) {
+      unfound = unfound.filter((f) => {
+        const rx = new RegExp(
+          getCaseSyntaxPatternByFileExtension(path.split(".").at(-1) ?? "", f),
+        );
+        return rx.test(content);
+      });
+    }
+
+    if (unfound.length) {
+      cliLog(
+        colorize(
+          "The following field names are not present in the CS code",
+          "red",
+        ),
+        this.block,
+      );
+      cliLog(unfound, this.block);
+      await cliAlert("Your princess is in another castle...", this.block);
+    } else {
+      cliLog(colorize("All form fields present", "green"), this.block);
+      await cliAlert("Ok!", this.block);
     }
-  async run(...args: string[]) {
-    await callWithArgPrompt(checkFile, [
-      ["Please provide path to PDF file:", (p) => !!p && p.endsWith(".pdf")],
-      [
-        "Please provide path to CS file (comma separated for multiple):",
-        (p) => !!p && p.endsWith(".cs"),
-      ],
-    ], args);
   }
 }
 

tools/fieldRename.ts

@@ -1,29 +1,13 @@
-import {
-  PDFAcroField,
-  PDFHexString,
-  PDFName,
-  PDFString,
-  toHexString,
-} from "pdf-lib";
-import { loadPdfForm, savePdf } from "util/saveLoadPdf.ts";
-import { PDFDocument } from "pdf-lib";
-import { call, callWithArgPrompt } from "util/call.ts";
-
-// const thing = PDFAcroField.prototype.getFullyQualifiedName;
-// PDFAcroField.prototype.getFullyQualifiedName = function () {
-//     const name = thing.call(this)
-//     // if (name?.includes('langauge'))
-//     console.log(name)
-//     return name;
-// }
-
-// const thing = PDFHexString.prototype.copyBytesInto
-// PDFHexString.prototype.copyBytesInto = function (buffer: Uint8Array, offset: number) {
-//     console.log((this as any).value)
-
-//     const result = thing.call(this, buffer, offset)
-//     return result;
-// }
+import { type PDFAcroField, type PDFField, PDFName, PDFString } from "pdf-lib";
+import { loadPdf, loadPdfForm, savePdf } from "util/saveLoadPdf.ts";
+import { callWithArgPrompt } from "util/call.ts";
+import { TerminalBlock } from "../cli/TerminalLayout.ts";
+import { forceArgs } from "../cli/forceArgs.ts";
+import { colorize } from "../cli/style.ts";
+import { cliAlert, cliLog, cliPrompt } from "../cli/prompts.ts";
+import { multiSelectMenuInteractive } from "../cli/selectMenu.ts";
+import type { callback, ITool } from "../types.ts";
+import { toCase } from "util/caseManagement.ts";
 
 async function renameFields(
   path: string,
@@ -50,29 +34,10 @@ async function renameFields(
           if (mName) {
             changesMade = true;
             cField.dict.set(PDFName.of("T"), PDFString.of(mName));
-            // console.log(cField.getPartialName())
           }
         }
         cField = cField.getParent();
-        // console.log(cField?.getPartialName())
       }
-      console.log(field.getName());
-      // const newName = name.replace(pattern, change);
-      // console.log("Change to: %c" + newName, "color: yellow");
-      // if (confirm('Ok?')) {
-      //     let parent = field.acroField.getParent();
-      //     field.acroField.setPartialName(segments.pop())
-      //     while (parent && segments.length) {
-      //         console.log(parent.getPartialName())
-      //         parent.setPartialName(segments.pop())
-      //         parent = parent.getParent();
-      //     }
-      //     changesMade = true;
-      //     console.log(field.getName())
-      //     // dict.set(PDFName.of("T"), PDFHexString.fromText(newName))
-      //     console.log("%cDone!", "color: lime")
-      // }
-      // break;
     }
   }
   if (changesMade) {
@@ -80,18 +45,151 @@ async function renameFields(
   }
 }
 
+function applyRename(
+  field: PDFField,
+  name: string,
+  pattern: RegExp,
+  change: string,
+) {
+  const segments = name.split(".");
+  const matchingSegments = segments.filter((s) => pattern.test(s));
+  let cField: PDFAcroField | undefined = field.acroField;
+  while (cField) {
+    if (
+      cField.getPartialName() &&
+      matchingSegments.includes(cField.getPartialName()!)
+    ) {
+      const mName = cField.getPartialName()?.replace(pattern, change);
+      if (mName) {
+        cField.dict.set(PDFName.of("T"), PDFString.of(mName));
+        // console.log(cField.getPartialName())
+      }
+    }
+    cField = cField.getParent();
+    // console.log(cField?.getPartialName())
+  }
+}
+
+/***
+ * Evaluates the change string with the match array
+ *
+ * @description The change string can include the following variables:
+ *
+ * - $<int> - capture groups, indexed from 1
+ * - $<int>i - capture groups, indexed from 1, transforming an integer to an index
+ * - $<int>s - capture groups, indexed from 1, transforming a string to snake case
+ * - $<int>c - capture groups, indexed from 1, transforming a string to camel case
+ * - $<int>l - capture groups, indexed from 1, transforming a string to lower case
+ * - $<int>u - capture groups, indexed from 1, transforming a string to upper case
+ * - $<int>t - capture groups, indexed from 1, transforming a string to title case
+ */
+function evaluateChange(change: string, match: RegExpExecArray) {
+  return change.replace(
+    /\$(\d+)([icslut]?)/g,
+    (_, i, indexed) => {
+      switch (indexed) {
+        case "i":
+          return (parseInt(match[i])
+            ? (parseInt(match[i]) - 1).toString()
+            : match[i]);
+        case "s":
+          return toCase(match[i], "snake");
+        case "c":
+          return toCase(match[i], "camel");
+        case "t":
+          return toCase(match[i], "title");
+        case "l":
+          return match[i].toLowerCase();
+        case "u":
+          return match[i].toUpperCase();
+        default:
+          return match[i];
+      }
+    },
+  );
+}
+
 class RenameFields implements ITool {
   name = "renamefields";
   description = "Renames fields in a PDF form";
-  help() {
-    console.log("Usage: renamefields <pdfPath> <pattern> <change>");
+  block: TerminalBlock | undefined;
+
+  setBlock(block: TerminalBlock) {
+    this.block = block;
+  }
+
+  async help(standalone = false) {
+    await cliAlert(
+      "Usage: rename-fields <pdfPath> <pattern> <change>\n",
+      standalone ? undefined : this.block,
+    );
   }
   async run(pdfPath: string = "", pattern: string = "", change: string = "") {
-    await callWithArgPrompt(renameFields, [
-      ["Please provide path to PDF:", (p) => !!p && p.endsWith(".pdf")],
+    if (!this.block) {
+      this.block = new TerminalBlock();
+    }
+    this.block.setPreserveHistory(true);
+
+    [pdfPath, pattern, change] = await forceArgs(
+      [pdfPath, pattern, change],
+      [
+        [
+          "Please provide path to PDF (comma separated for multiple):",
+          (p) => !!p && p.endsWith(".pdf"),
+        ],
         "Please provide search string:",
         "Please provide requested change:",
-    ], [pdfPath, pattern, change]);
+      ],
+      this.block,
+    );
+
+    const paths = pdfPath.split(",");
+
+    for (const pdfPath of paths) {
+      const patternRegex = new RegExp(pattern);
+
+      const pdf = await loadPdf(pdfPath);
+      const form = pdf.getForm();
+      const fields = form.getFields();
+
+      const foundUpdates: [string, callback][] = [];
+      let changesMade = false;
+
+      for (const field of fields) {
+        const name = field.getName();
+        const match = patternRegex.exec(name);
+        if (match) {
+          const toChange = evaluateChange(change, match);
+          const preview = name.replace(new RegExp(patternRegex), toChange);
+          foundUpdates.push([
+            `${colorize(name, "red")} -> ${colorize(preview, "green")}`,
+            () => {
+              applyRename(field, name, patternRegex, toChange);
+              changesMade = true;
+            },
+          ]);
+        }
+      }
+
+      if (foundUpdates.length) {
+        cliLog("Found updates:", this.block);
+        await multiSelectMenuInteractive(
+          "Please select an option to apply",
+          foundUpdates,
+          { terminalBlock: this.block },
+        );
+      }
+
+      if (changesMade) {
+        const path = await cliPrompt(
+          "Save to path (or hit enter to keep current):",
+          this.block,
+        );
+        await savePdf(pdf, path || pdfPath);
+      } else {
+        cliLog("No changes made, skipping", this.block);
+      }
+    }
   }
 }
 export default new RenameFields();

tools/listFormFields.ts

@@ -0,0 +1,57 @@
+import { forceArgs } from "../cli/forceArgs.ts";
+import { cliAlert } from "../cli/prompts.ts";
+import { TerminalBlock } from "../cli/TerminalLayout.ts";
+import { loadPdfForm } from "util/saveLoadPdf.ts";
+import type { ITool } from "../types.ts";
+
+export class ListFormFields implements ITool {
+  name = "listformfields";
+  description = "Lists fields in a PDF form";
+  block?: TerminalBlock;
+  async run(pdfPath: string = "") {
+    if (!this.block) {
+      this.block = new TerminalBlock();
+    }
+    this.block.setPreserveHistory(true);
+    [pdfPath] = await forceArgs([pdfPath], [[
+      "Please provide path to PDF:",
+      (p) => !!p && p.endsWith(".pdf"),
+    ]], this.block);
+
+    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 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);
+    }
+    this.block.setLines(lines, [0, 1]);
+    await cliAlert("", this.block);
+  }
+  setBlock(terminalBlock: TerminalBlock) {
+    this.block = terminalBlock;
+  }
+}
+
+export default new ListFormFields();

types.ts

@@ -1,10 +1,13 @@
-declare global {
-  type ToolFunc<T extends unknown[]> = (...args: T) => Promise<void>;
-  interface ITool {
+import type { TerminalBlock } from "./cli/TerminalLayout.ts";
+
+export type ToolFunc<T extends unknown[]> = (...args: T) => Promise<void>;
+export interface ITool {
   name: string;
   description: string;
   run: ToolFunc<any[]>;
   help?: () => Promise<void> | void;
   done?: () => Promise<void> | void;
-  }
+  setBlock?: (block: TerminalBlock) => void;
 }
+
+export type callback = (...args: any[]) => any;

util/asciiArt.ts

@@ -1,12 +1,19 @@
+import { log } from "./logfile.ts";
+import { join } from "@std/path";
+
 export async function getAsciiArt(art: string) {
-  const artFilePath = Deno.env.get("BEARMETAL_ASCII_PATH") ||
-    getBearmetalAsciiPath();
-  if (!artFilePath) return art;
+  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")) {
+    if (artFilePath?.startsWith("http")) {
       artFileText = await fetch(artFilePath).then((res) => res.text());
     } else {
-    artFileText = await Deno.readTextFile(artFilePath);
+      artFileText = await Deno.readTextFile(
+        artFilePath,
+      );
     }
     const parserRX = /begin\s+(\w+)\s*\n([\s\S]*?)\s*end\s*/g;
     let result = parserRX.exec(artFileText);
@@ -16,15 +23,9 @@ export async function getAsciiArt(art: string) {
       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/call.ts

@@ -1,3 +1,5 @@
+import type { ToolFunc } from "../types.ts";
+
 type transformer = (arg: string) => any;
 interface IConfig {
   multiTransform?: boolean;

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/dedent.ts

@@ -0,0 +1,18 @@
+export function dedent(str: string) {
+  const lines = str.split("\n");
+  const indent = lines.reduce((count, line) => {
+    if (line.trim() === "") return count;
+    const match = line.match(/^(\s*)/);
+    return match ? Math.min(count, match[1].length) : count;
+  }, Infinity);
+  return lines.map((line) => line.slice(indent)).join("\n");
+}
+
+if (import.meta.main) {
+  console.log(dedent(`
+    Hello, World!
+      This is a paragraph
+      that spans multiple lines.
+    And this is another paragraph.
+  `));
+}

util/logfile.ts

@@ -0,0 +1,15 @@
+const logFile = Deno.openSync("./log.txt", {
+  create: true,
+  write: true,
+  read: true,
+  append: true,
+});
+
+logFile.truncateSync(0);
+
+export function log(message: any) {
+  if (typeof message === "object") {
+    message = JSON.stringify(message);
+  }
+  logFile.writeSync(new TextEncoder().encode(message + "\n"));
+}

util/saveLoadPdf.ts

@@ -1,4 +1,4 @@
-import { PDFDocument } from "pdf-lib";
+import { PDFDocument, PDFTextField } from "pdf-lib";
 
 export async function loadPdfForm(path: string) {
   const pdfDoc = await loadPdf(path);
@@ -13,6 +13,11 @@ 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();
+    }
+  });
   const pdfBytes = await doc.save();
   if (Deno.env.get("DRYRUN") || path.includes("dryrun")) return;
   await Deno.writeFile(path, pdfBytes);