Switch to more recent Claude XML format

Refs #15

Refs https://github.com/simonw/files-to-prompt/pull/16#discussion_r1744298522

README.md

@@ -104,7 +104,7 @@ Contents of file3.txt
 ---
 ```
 
-### XML Output
+### Claude XML Output
 
 Anthropic has provided [specific guidelines](https://docs.anthropic.com/claude/docs/long-context-window-tips) for optimally structuring prompts to take advantage of Claude's extended context window.
 
@@ -112,14 +112,18 @@ To structure the output in this way, use the optional `--cxml` flag, which will
 
 ```xml
 <documents>
-<document path="my_directory/file1.txt">
+<document index="1">
+<source>my_directory/file1.txt</source>
+<document_content>
 Contents of file1.txt
+</document_content>
 </document>
-
-<document path="my_directory/file2.txt">
+<document index="2">
+<source>my_directory/file2.txt</source>
+<document_content>
 Contents of file2.txt
+</document_content>
 </document>
-...
 </documents>
 ```
 

files_to_prompt/cli.py

@@ -3,6 +3,8 @@ from fnmatch import fnmatch
 
 import click
 
+global_index = 1
+
 
 def should_ignore(path, gitignore_rules):
     for rule in gitignore_rules:
@@ -39,9 +41,14 @@ def print_default(path, content):
 
 
 def print_as_xml(path, content):
-    click.echo(f'<document path="{path}">')
+    global global_index
+    click.echo(f'<document index="{global_index}">')
+    click.echo(f"<source>{path}</source>")
+    click.echo("<document_content>")
     click.echo(content)
+    click.echo("</document_content>")
     click.echo("</document>")
+    global_index += 1
 
 
 def process_path(
@@ -151,6 +158,9 @@ def cli(paths, include_hidden, ignore_gitignore, ignore_patterns, claude_xml):
     ...
     </documents>
     """
+    # Reset global_index for pytest
+    global global_index
+    global_index = 1
     gitignore_rules = []
     for path in paths:
         if not os.path.exists(path):
@@ -159,7 +169,6 @@ def cli(paths, include_hidden, ignore_gitignore, ignore_patterns, claude_xml):
             gitignore_rules.extend(read_gitignore(os.path.dirname(path)))
         if claude_xml and path == paths[0]:
             click.echo("<documents>")
-
         process_path(
             path,
             include_hidden,
@@ -168,6 +177,5 @@ def cli(paths, include_hidden, ignore_gitignore, ignore_patterns, claude_xml):
             ignore_patterns,
             claude_xml,
         )
-
     if claude_xml:
         click.echo("</documents>")

tests/test_files_to_prompt.py

@@ -1,4 +1,5 @@
 import os
+import pytest
 
 from click.testing import CliRunner
 
@@ -190,53 +191,33 @@ def test_binary_file_warning(tmpdir):
         )
 
 
-def test_xml_format_dir(tmpdir):
+@pytest.mark.parametrize(
+    "args", (["test_dir"], ["test_dir/file1.txt", "test_dir/file2.txt"])
+)
+def test_xml_format_dir(tmpdir, args):
     runner = CliRunner()
     with tmpdir.as_cwd():
         os.makedirs("test_dir")
         with open("test_dir/file1.txt", "w") as f:
-            f.write("Contents of file1")
+            f.write("Contents of file1.txt")
         with open("test_dir/file2.txt", "w") as f:
-            f.write("Contents of file2")
-
-        result = runner.invoke(cli, ["test_dir", "--cxml"])
+            f.write("Contents of file2.txt")
+        result = runner.invoke(cli, args + ["--cxml"])
         assert result.exit_code == 0
         actual = result.output
         expected = """
 <documents>
-<document path="test_dir/file1.txt">
-Contents of file1
+<document index="1">
+<source>test_dir/file1.txt</source>
+<document_content>
+Contents of file1.txt
+</document_content>
 </document>
-<document path="test_dir/file2.txt">
-Contents of file2
-</document>
-</documents>
-"""
-        assert expected.strip() == actual.strip()
-
-
-def test_cxml_format_multiple_paths(tmpdir):
-    runner = CliRunner()
-    with tmpdir.as_cwd():
-        os.makedirs("test_dir")
-        with open("test_dir/file1.txt", "w") as f:
-            f.write("Contents of file1")
-        with open("test_dir/file2.txt", "w") as f:
-            f.write("Contents of file2")
-
-        result = runner.invoke(
-            cli, ["test_dir/file1.txt", "test_dir/file2.txt", "--cxml"]
-        )
-
-        assert result.exit_code == 0
-        actual = result.output
-        expected = """
-<documents>
-<document path="test_dir/file1.txt">
-Contents of file1
-</document>
-<document path="test_dir/file2.txt">
-Contents of file2
+<document index="2">
+<source>test_dir/file2.txt</source>
+<document_content>
+Contents of file2.txt
+</document_content>
 </document>
 </documents>
 """