text wrap long descriptions

Author: zingale

util/runparams.py

@@ -48,7 +48,7 @@
 import os
 import re
 from util import msg
-
+import textwrap
 
 # some utility functions to automagically determine what the data
 # types are
@@ -316,8 +316,15 @@ def print_sphinx_tables(self, outfile="params-sphinx.inc"):
 
             for key in keys:
                 _, option = key.split('.')
+                descr = textwrap.wrap(self.param_comments[key].strip(), 50)
+                if len(descr) == 0:
+                    descr = [" "]
+
                 f.write(entry.format(option, "``{}``".format(str(self.params[key]).strip()),
-                                     self.param_comments[key].strip()))
+                                     descr[0]))
+                if len(descr) > 1:
+                    for line in descr[1:]:
+                        f.write(entry.format("", "", line))
                 f.write(separator)
 
             f.write("\n")