Run setup.py on the unpacked .tar.gz for testing.

1 files changed, 87 insertions, 0 deletions

diff --git a/src/engine/SCons/Scanner/C.py b/src/engine/SCons/Scanner/C.py
new file mode 100644
index 0000000..ce6f9c6
--- /dev/null
+++ b/src/engine/SCons/Scanner/C.py
@@ -0,0 +1,87 @@
+"""SCons.Scanner.C
+
+This module implements the depenency scanner for C/C++ code. 
+
+"""
+
+__revision__ = "Scanner/C.py __REVISION__ __DATE__ __DEVELOPER__"
+
+
+import SCons.Scanner
+import re
+import os.path
+
+angle_re = re.compile('^[ \t]*#[ \t]*include[ \t]+<([\\w./\\\\]+)>', re.M)
+quote_re = re.compile('^[ \t]*#[ \t]*include[ \t]+"([\\w./\\\\]+)"', re.M)
+
+def CScan():
+    "Return a Scanner instance for scanning C/C++ source files"
+    return SCons.Scanner.Scanner(scan)
+
+def find_files(filenames, paths):
+    """
+    find_files([str], [str]) -> [str]
+
+    filenames - a list of filenames to find
+    paths - a list of paths to search in
+
+    returns - the fullnames of the files
+
+    Only the first fullname found is returned for each filename, and any
+    file that aren't found are ignored.
+    """
+    fullnames = []
+    for filename in filenames:
+        for path in paths:
+            fullname = os.path.join(path, filename)
+            if os.path.exists(fullname):
+                fullnames.append(fullname)
+                break
+
+    return fullnames
+
+def scan(filename, env):
+    """
+    scan(str, Environment) -> [str]
+
+    the C/C++ dependency scanner function
+
+    This function is intentionally simple. There are two rules it
+    follows:
+    
+    1) #include <foo.h> - search for foo.h in CPPPATH followed by the
+        directory 'filename' is in
+    2) #include \"foo.h\" - search for foo.h in the directory 'filename' is
+       in followed by CPPPATH
+
+    These rules approximate the behaviour of most C/C++ compilers.
+
+    This scanner also ignores #ifdef and other preprocessor conditionals, so
+    it may find more depencies than there really are, but it never misses
+    dependencies.
+    """
+
+    if hasattr(env, "CPPPATH"):
+        paths = env.CPPPATH
+    else:
+        paths = []
+        
+    file = open(filename)
+    contents = file.read()
+    file.close()
+
+    angle_includes = angle_re.findall(contents)
+    quote_includes = quote_re.findall(contents)
+
+    source_dir = os.path.dirname(filename)
+    
+    deps = (find_files(angle_includes, paths + [source_dir])
+            + find_files(quote_includes, [source_dir] + paths))
+
+    return deps
+
+    
+    
+    
+
+