Add a new cpv and values textwrapping class

diff --git a/pym/gentoolkit/formatters.py b/pym/gentoolkit/formatters.py
index 413a1c8bb6068b56749443311cc7d5348252ac37..c0a17470c05266be95cd6c2a0676c35c4725c848 100644 (file)
--- a/pym/gentoolkit/formatters.py
+++ b/pym/gentoolkit/formatters.py
@@ -97,3 +97,42 @@ def format_timestamp(timestamp):
 
        return time.strftime("%Y-%m-%d %H:%M:%S", time.localtime(int(timestamp)))
 
+class CpvValueWrapper(object):
+       """Format a cpv and linewrap pre-formatted values"""
+
+       def __init__(self, cpv_width=None, width=None):
+               self.cpv_width = cpv_width
+               if width is None:
+                       width = gentoolkit.CONFIG['termWidth']
+               self.twrap = TextWrapper(width=width)
+               #self.init_indent = len(self.spacer)
+
+       def _format_values(self, key, values):
+               """Format entry values ie. USE flags, keywords,...
+
+               @type key: str
+               @param key: a pre-formatted cpv
+               @type values: list of pre-formatted strings
+               @param values: ['flag1', 'flag2',...]
+               @rtype: str
+               @return: formatted options string
+               """
+
+               result = []
+               if self.cpv_width > 1:
+                       _cpv = pp.cpv(key+'.'*(self.cpv_width-len(key)))
+                       if not len(values):
+                               return _cpv
+                       self.twrap.initial_indent = _cpv
+                       self.twrap.subsequent_indent = " " * (self.cpv_width+1)
+               else:
+                       _cpv = pp.cpv(key+' ')
+                       if not len(values):
+                               return _cpv
+                       self.twrap.initial_indent = _cpv
+                       self.twrap.subsequent_indent = " " * (len(key)+1)
+
+               result.append(self.twrap.fill(values))
+               return '\n'.join(result)
+
+