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.venv/Lib/site-packages/nbconvert/utils/text.py

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+import os
+import re
+
+
+def indent(instr, nspaces=4, ntabs=0, flatten=False):
+    """Indent a string a given number of spaces or tabstops.
+
+    indent(str,nspaces=4,ntabs=0) -> indent str by ntabs+nspaces.
+
+    Parameters
+    ----------
+
+    instr : basestring
+        The string to be indented.
+    nspaces : int (default: 4)
+        The number of spaces to be indented.
+    ntabs : int (default: 0)
+        The number of tabs to be indented.
+    flatten : bool (default: False)
+        Whether to scrub existing indentation.  If True, all lines will be
+        aligned to the same indentation.  If False, existing indentation will
+        be strictly increased.
+
+    Returns
+    -------
+
+    str|unicode : string indented by ntabs and nspaces.
+
+    """
+    if instr is None:
+        return
+    ind = "\t" * ntabs + " " * nspaces
+    if flatten:
+        pat = re.compile(r"^\s*", re.MULTILINE)
+    else:
+        pat = re.compile(r"^", re.MULTILINE)
+    outstr = re.sub(pat, ind, instr)
+    if outstr.endswith(os.linesep + ind):
+        return outstr[: -len(ind)]
+    else:
+        return outstr