diff options
| -rw-r--r-- | pexpect/pexpect.py | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/pexpect/pexpect.py b/pexpect/pexpect.py index c313f46..c83df56 100644 --- a/pexpect/pexpect.py +++ b/pexpect/pexpect.py @@ -130,7 +130,7 @@ class spawn: self.maxread = 1 # Maximum to read at a time ### IMPLEMENT THIS FEATURE!!! # anything before maxsearchsize point is preserved, but not searched. - #self.maxsearchsize = 1000 + self.maxsearchsize = 1000 # If command is an int type then it must represent an open file descriptor. if type (command) == type(0): @@ -291,6 +291,14 @@ class spawn: """ self.maxread = maxread + def setmaxsearchsize(self,maxsearchsize): + """This sets the maximum size to search. The last maxsearchsize + bytes read will be searched for the expect patterns. All + data will be available in the spawn.before variable, + but only the last maxsearchsize bytes will be searched.""" + self.maxsearchsize = maxsearchsize + + def read_nonblocking (self, size = 1, timeout = None): """ This reads at most size characters from the child application. @@ -663,7 +671,11 @@ class spawn: index = index + 1 if str_target is EOF or str_target is TIMEOUT: continue # The Exception patterns are handled differently. - match_index = incoming.find (str_target) + if(self.maxsearchsize != None): + searchbuffer = incoming[-self.maxsearchsize:] + else: + searchbuffer = incoming + match_index = searchbuffer.find (str_target) if match_index >= 0: self.before = incoming [ : match_index] self.after = incoming [match_index : ] @@ -725,7 +737,11 @@ class spawn: index = index + 1 if cre is EOF or cre is TIMEOUT: continue # The patterns for PexpectExceptions are handled differently. - match = cre.search(incoming) + if(self.maxsearchsize != None): + searchbuffer = incoming[-self.maxsearchsize:] + else: + searchbuffer = incoming + match = cre.search(searchbuffer) if match is not None: self.before = incoming[ : match.start()] self.after = incoming[match.start() : ] |