1 files changed, 32 insertions, 0 deletions
diff --git a/Tools/Parser/input_file_parser.py b/Tools/Parser/input_file_parser.py
new file mode 100644
index 000000000..0ab134f62
--- /dev/null
+++ b/Tools/Parser/input_file_parser.py
@@ -0,0 +1,32 @@
+def parse_input_file(input_file):
+    """
+    Parse WarpX input file.
+
+    Parameters
+    ----------
+    input_file : string
+        Path to input file.
+
+    Returns
+    -------
+    input_dict : dictionary
+        Dictionary storing WarpX input parameters
+        (parameter's name stored as key, parameter's value stored as value).
+    """
+    input_dict = dict()
+    with open(input_file) as ff:
+        for line in ff:
+            sline = line.split('=')
+            # skip lines that are commented out, blank, or continuation of previous parameters
+            skip_line = sline[0].startswith('#') or sline[0].startswith('\n') or len(sline) == 1
+            if not skip_line:
+                key = sline[0].strip()
+                val = sline[1].split()
+                # The value corresponding to a given key of input_dict is a list
+                # of strings, from which we remove any leftover comments
+                for i in range(len(val)):
+                    if val[i].startswith('#'):
+                        val = val[:i]
+                        break
+                input_dict[key] = val
+    return input_dict