Adding upstream version 2.1.0.upstream/2.1.0upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 109 insertions, 0 deletions

diff --git a/markdown_it/cli/parse.py b/markdown_it/cli/parse.py
new file mode 100644
index 0000000..2d74f55
--- /dev/null
+++ b/markdown_it/cli/parse.py
@@ -0,0 +1,109 @@
+#!/usr/bin/env python
+"""
+CLI interface to markdown-it-py
+
+Parse one or more markdown files, convert each to HTML, and print to stdout.
+"""
+from __future__ import annotations
+
+import argparse
+from collections.abc import Iterable, Sequence
+import sys
+
+from markdown_it import __version__
+from markdown_it.main import MarkdownIt
+
+version_str = "markdown-it-py [version {}]".format(__version__)
+
+
+def main(args: Sequence[str] | None = None) -> int:
+    namespace = parse_args(args)
+    if namespace.filenames:
+        convert(namespace.filenames)
+    else:
+        interactive()
+    return 0
+
+
+def convert(filenames: Iterable[str]) -> None:
+    for filename in filenames:
+        convert_file(filename)
+
+
+def convert_file(filename: str) -> None:
+    """
+    Parse a Markdown file and dump the output to stdout.
+    """
+    try:
+        with open(filename, "r") as fin:
+            rendered = MarkdownIt().render(fin.read())
+            print(rendered, end="")
+    except OSError:
+        sys.stderr.write(f'Cannot open file "{filename}".\n')
+        sys.exit(1)
+
+
+def interactive() -> None:
+    """
+    Parse user input, dump to stdout, rinse and repeat.
+    Python REPL style.
+    """
+    print_heading()
+    contents = []
+    more = False
+    while True:
+        try:
+            prompt, more = ("... ", True) if more else (">>> ", True)
+            contents.append(input(prompt) + "\n")
+        except EOFError:
+            print("\n" + MarkdownIt().render("\n".join(contents)), end="")
+            more = False
+            contents = []
+        except KeyboardInterrupt:
+            print("\nExiting.")
+            break
+
+
+def parse_args(args: Sequence[str] | None) -> argparse.Namespace:
+    """Parse input CLI arguments."""
+    parser = argparse.ArgumentParser(
+        description="Parse one or more markdown files, "
+        "convert each to HTML, and print to stdout",
+        # NOTE: Remember to update README.md w/ the output of `markdown-it -h`
+        epilog=(
+            f"""
+Interactive:
+
+  $ markdown-it
+  markdown-it-py [version {__version__}] (interactive)
+  Type Ctrl-D to complete input, or Ctrl-C to exit.
+  >>> # Example
+  ... > markdown *input*
+  ...
+  <h1>Example</h1>
+  <blockquote>
+  <p>markdown <em>input</em></p>
+  </blockquote>
+
+Batch:
+
+  $ markdown-it README.md README.footer.md > index.html
+"""
+        ),
+        formatter_class=argparse.RawDescriptionHelpFormatter,
+    )
+    parser.add_argument("-v", "--version", action="version", version=version_str)
+    parser.add_argument(
+        "filenames", nargs="*", help="specify an optional list of files to convert"
+    )
+    return parser.parse_args(args)
+
+
+def print_heading() -> None:
+    print("{} (interactive)".format(version_str))
+    print("Type Ctrl-D to complete input, or Ctrl-C to exit.")
+
+
+if __name__ == "__main__":
+    exit_code = main(sys.argv[1:])
+    sys.exit(exit_code)