test

lib/python3.11/site-packages/pip/_vendor/chardet/cli/chardetect.py

@@ -0,0 +1,86 @@
+"""
+Script which takes one or more file paths and reports on their detected
+encodings
+
+Example::
+
+    % chardetect somefile someotherfile
+    somefile: windows-1252 with confidence 0.5
+    someotherfile: ascii with confidence 1.0
+
+If no paths are provided, it takes its input from stdin.
+
+"""
+
+
+import argparse
+import sys
+
+from .. import __version__
+from ..universaldetector import UniversalDetector
+
+
+def description_of(lines, name="stdin"):
+    """
+    Return a string describing the probable encoding of a file or
+    list of strings.
+
+    :param lines: The lines to get the encoding of.
+    :type lines: Iterable of bytes
+    :param name: Name of file or collection of lines
+    :type name: str
+    """
+    u = UniversalDetector()
+    for line in lines:
+        line = bytearray(line)
+        u.feed(line)
+        # shortcut out of the loop to save reading further - particularly useful if we read a BOM.
+        if u.done:
+            break
+    u.close()
+    result = u.result
+    if result["encoding"]:
+        return f'{name}: {result["encoding"]} with confidence {result["confidence"]}'
+    return f"{name}: no result"
+
+
+def main(argv=None):
+    """
+    Handles command line arguments and gets things started.
+
+    :param argv: List of arguments, as if specified on the command-line.
+                 If None, ``sys.argv[1:]`` is used instead.
+    :type argv: list of str
+    """
+    # Get command line arguments
+    parser = argparse.ArgumentParser(
+        description="Takes one or more file paths and reports their detected \
+                     encodings"
+    )
+    parser.add_argument(
+        "input",
+        help="File whose encoding we would like to determine. \
+                              (default: stdin)",
+        type=argparse.FileType("rb"),
+        nargs="*",
+        default=[sys.stdin.buffer],
+    )
+    parser.add_argument(
+        "--version", action="version", version=f"%(prog)s {__version__}"
+    )
+    args = parser.parse_args(argv)
+
+    for f in args.input:
+        if f.isatty():
+            print(
+                "You are running chardetect interactively. Press "
+                "CTRL-D twice at the start of a blank line to signal the "
+                "end of your input. If you want help, run chardetect "
+                "--help\n",
+                file=sys.stderr,
+            )
+        print(description_of(f, f.name))
+
+
+if __name__ == "__main__":
+    main()