F2PY G3: Moved Fortran parser related code to subpackage parser.

1 files changed, 53 insertions, 0 deletions

diff --git a/numpy/f2py/lib/parser/api.py b/numpy/f2py/lib/parser/api.py
new file mode 100644
index 000000000..efcfcbf28
--- /dev/null
+++ b/numpy/f2py/lib/parser/api.py
@@ -0,0 +1,53 @@
+"""
+Public API for Fortran parser.
+
+-----
+Permission to use, modify, and distribute this software is given under the
+terms of the NumPy License. See http://scipy.org.
+
+NO WARRANTY IS EXPRESSED OR IMPLIED.  USE AT YOUR OWN RISK.
+Author: Pearu Peterson <pearu@cens.ioc.ee>
+Created: Oct 2006
+-----
+"""
+
+# import all Statement classes:
+from block_statements import *
+
+# CHAR_BIT is used to convert object bit sizes to byte sizes
+from utils import CHAR_BIT
+
+def parse(input, isfree=None, isstrict=None, include_dirs = None):
+    """ Parse input and return Statement tree.
+
+    input            --- string or filename.
+    isfree, isstrict --- specify input Fortran format.
+                         Defaults are True, False, respectively, or
+                         determined from input.
+    include_dirs     --- list of include directories.
+                         Default contains current working directory
+                         and the directory of file name.
+    """
+    import os
+    from readfortran import FortranFileReader, FortranStringReader
+    from parsefortran import FortranParser
+    if os.path.isfile(input):
+        reader = FortranFileReader(input,
+                                   include_dirs = include_dirs)
+        if isfree is None: reader.isfree
+        if isstrict is None: reader.isstrict
+        reader.set_mode(isfree, isstrict)
+    elif isinstance(input, str):
+        if isfree is None: isfree = True
+        if isstrict is None: isstrict = False
+        reader = FortranStringReader(input,
+                                     isfree, isstrict,
+                                     include_dirs = include_dirs)
+    else:
+        raise TypeError,'Expected string or filename input but got %s' % (type(input))
+    parser = FortranParser(reader)
+    parser.parse()
+    parser.analyze()
+    return parser.block
+
+