1 files changed, 61 insertions, 0 deletions
diff --git a/bin/reportlab/lib/logger.py b/bin/reportlab/lib/logger.py
new file mode 100755
index 00000000000..501596e62e1
--- /dev/null
+++ b/bin/reportlab/lib/logger.py
@@ -0,0 +1,61 @@
+#! /usr/bin/python2.3
+#Copyright ReportLab Europe Ltd. 2000-2004
+#see license.txt for license details
+#history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/lib/logger.py
+__version__=''' $Id$ '''
+
+from sys import stderr
+class Logger:
+    '''
+    An extended file type thing initially equivalent to sys.stderr
+    You can add/remove file type things; it has a write method
+    '''
+    def __init__(self):
+        self._fps = [stderr]
+        self._fns = {}
+
+    def add(self,fp):
+        '''add the file/string fp to the destinations'''
+        if type(fp) is StringType:
+            if fp in self._fns: return
+            fp = open(fn,'wb')
+            self._fns[fn] = fp
+        self._fps.append(fp)
+
+    def remove(self,fp):
+        '''remove the file/string fp from the destinations'''
+        if type(fp) is StringType:
+            if fp not in self._fns: return
+            fn = fp
+            fp = self._fns[fn]
+            del self.fns[fn]
+        if fp in self._fps:
+            del self._fps[self._fps.index(fp)]
+
+    def write(self,text):
+        '''write text to all the destinations'''
+        if text[-1]!='\n': text=text+'\n'
+        map(lambda fp,t=text: fp.write(t),self._fps)
+
+    def __call__(self,text):
+        self.write(text)
+
+logger=Logger()
+
+class WarnOnce:
+
+    def __init__(self,kind='Warn'):
+        self.uttered = {}
+        self.pfx = '%s: '%kind
+        self.enabled = 1
+
+    def once(self,warning):
+        if not self.uttered.has_key(warning):
+            if self.enabled: logger.write(self.pfx + warning)
+            self.uttered[warning] = 1
+
+    def __call__(self,warning):
+        self.once(warning)
+
+warnOnce=WarnOnce()
+infoOnce=WarnOnce('Info')
+\ No newline at end of file