make sure doc string tabs are replaced with spaces for save parsing (…

…Issue #24)

jip/options.py

@@ -1401,6 +1401,8 @@ def from_docopt(cls, doc, inputs=None, outputs=None, source=None):
         from jip.vendor import docopt
         from jip.vendor.docopt import Required, Optional, Argument, \
             OneOrMore, Command
+        # Fix for Issue #24. We simply make sure there are no tabs:)
+        doc = doc.replace("\t", "    ")
         inputs = [re.sub(r'^-*', '', s) for s in inputs] if inputs else []
         outputs = [re.sub(r'^-*', '', s) for s in outputs] if outputs else []
         opts = cls(source=source)

test/test_options.py

@@ -399,3 +399,29 @@ def test_list_option_rendering():
     assert render_template("${o}", o=o) == 'A B'
     assert render_template("${o|join(',')}", o=o) == 'A,B'
 
+
+def test_docopt_parser_with_tabs():
+    help_string = """\
+Some Tool
+
+Usage: tools [-t] [-i <input>...] <cmd>
+
+Inputs:
+	-i, --input <input>...	The input
+
+Options:
+	-t	Some boolean
+	<cmd>	The command
+    """
+    opts = Options.from_docopt(help_string)
+
+    assert len(opts) == 3  # the two + help
+    assert opts['input'] is not None
+    assert opts['input'].nargs == "*"
+    assert not opts['input'].required
+    assert opts['t'] is not None
+    assert opts['t'].nargs == 0
+    assert not opts['t'].required
+    assert opts['cmd'] is not None
+    assert opts['cmd'].nargs == 1
+    assert opts['cmd'].required