module for 's/regex/replacement/'style corrections

<DimeCadmium> fffffffffff
<DimeCadmium> s/f/b/
<Erebus> <DimeCadmium> bffffffffff
<DimeCadmium> s/f/b/g
<Erebus> <DimeCadmium> bbbbbbbbbbb
<DimeCadmium> s/f/b/g;
<Erebus> <DimeCadmium> bbbbbbbbbbb
<DimeCadmium> s/f/b/;
<Erebus> <DimeCadmium> bffffffffff
<DimeCadmium> s/a/z/
(note Erebus says nothing because the replacement failed)

<DimeCadmium> abcdef
<DimeCadmium> s/c/z/
<Erebus> <DimeCadmium> abzdef
<DimeCadmium> s/(..).(...)/\1!\2/
<Erebus> <DimeCadmium> ab!def
<DimeCadmium> s!(..).(...)!\1/\2!
<Erebus> <DimeCadmium> ab/def

<DimIRC> ffffffffff
<DimeCadmium> s/f/b/
<Erebus> DimeCadmium: <DimIRC> bfffffffff

diff --git a/modules/subtext.py b/modules/subtext.py
new file mode 100644 (file)
index 0000000..2ab1a04
--- /dev/null
+++ b/modules/subtext.py
@@ -0,0 +1,55 @@
+# Erebus IRC bot - Author: Erebus Team
+# simple module example
+# This file is released into the public domain; see http://unlicense.org/
+
+# module info
+modinfo = {
+       'author': 'Erebus Team',
+       'license': 'public domain',
+       'compatible': [2], # compatible module API versions
+       'depends': [], # other modules required to work properly?
+       'softdeps': ['help'], # modules which are preferred but not required
+}
+# note: softdeps will be loaded before this module, IF not disabled in the configuration (autoload.module = 0) (and if it exists)
+# however, if it is disabled it will be silently ignored, and if it is unloaded at runtime it won't cause this one to unload.
+#
+# basically, softdeps are things this module will use if available, but does not require (no errors will occur if it's not loaded)
+# for example, @lib.help() will attempt to use the help module, but swallow errors if it is not loaded
+
+# preamble
+import modlib
+lib = modlib.modlib(__name__)
+modstart = lib.modstart
+modstop = lib.modstop
+
+# module code
+import re
+from collections import namedtuple
+re_findsub = re.compile(r"s(.)(?P<search>[^\1]+)\1(?P<replace>[^\1]+)\1(?P<global>g)?;?")
+Line = namedtuple('Line', ['sender', 'msg'])
+lastline = {}
+@lib.hooknum("PRIVMSG")
+def privmsg_hook(bot, line):
+       pieces = line.split(None, 3)
+       fromnick = pieces[0][1:].split('!')[0]
+       chan = pieces[2]
+       msg = pieces[3][1:]
+       mo = re_findsub.match(msg)
+       if mo:
+               print lastline[chan]
+               print mo.groupdict()
+               if mo.group('global') is not None:
+                       count = 0 # unlimited
+               else:
+                       count = 1 # only first
+               try:
+                       newline = re.sub(mo.group('search'), mo.group('replace'), lastline[chan].msg, count)
+               except Exception as e: print e; return # ignore it if it doesn't work
+               print newline
+               if newline != lastline[chan].msg:
+                       if lastline[chan].sender == fromnick:
+                               bot.msg(chan, "<%s> %s" % (lastline[chan].sender, newline))
+                       else:
+                               bot.msg(chan, "%s: <%s> %s" % (fromnick, lastline[chan].sender, newline))
+       else:
+               lastline[chan] = Line(sender=fromnick, msg=msg)