* text_tools: module to contain simple text utilities.

text_tools.py

@@ -0,0 +1,31 @@
+# $Id: text_tools.py,v 1.1 2009-12-04 19:57:22 wirawan Exp $
+#
+# Created: 20091204
+# Wirawan Purwanto
+#
+# Simple and dirty text tools
+#
+
+import numpy
+
+def make_matrix(Str, debug=None):
+  """Simple tool to convert a string like
+    '''1 2 3
+    4 5 6
+    7 8 9'''
+  into a numpy matrix (or, actually, an array object).
+  This is for convenience in programming quick scripts, much like octave matrix
+  format (but without the evaluation of math expressions that octave has,
+  of course)."""
+  if isinstance(Str, numpy.matrix):
+    return numpy.array(Str)
+  elif isinstance(Str, numpy.ndarray):
+    if len(Str.shape) == 2:
+      return Str.copy()
+    else:
+      raise ValueError, "Cannot make matrix out of non-2D array"
+  Str2 = ";".join([ row.rstrip().rstrip(";") for row in Str.split("\n") if row.strip() != "" ])
+  rslt = numpy.matrix(Str2)
+  if debug: print rslt
+  return numpy.array(rslt)
+