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import time
import string
import re
import keyword
from Tkinter import *
from Delegator import Delegator
#$ event <<toggle-auto-coloring>>
#$ win <Control-slash>
#$ unix <Control-slash>
__debug__ = 0
def any(name, list):
return "(?P<%s>" % name + string.join(list, "|") + ")"
def make_pat():
kw = r"\b" + any("KEYWORD", keyword.kwlist) + r"\b"
comment = any("COMMENT", [r"#[^\n]*"])
sqstring = r"(\b[rR])?'([^'\\\n]|\\.)*'?"
dqstring = r'(\b[rR])?"([^"\\\n]|\\.)*"?'
sq3string = r"(\b[rR])?'''([^'\\]|\\.|'(?!''))*(''')?"
dq3string = r'(\b[rR])?"""([^"\\]|\\.|"(?!""))*(""")?'
string = any("STRING", [sq3string, dq3string, sqstring, dqstring])
return kw + "|" + comment + "|" + string + "|" + any("SYNC", [r"\n"])
prog = re.compile(make_pat(), re.S)
idprog = re.compile(r"\s+(\w+)", re.S)
class ColorDelegator(Delegator):
def __init__(self):
Delegator.__init__(self)
self.prog = prog
self.idprog = idprog
def setdelegate(self, delegate):
if self.delegate is not None:
self.unbind("<<toggle-auto-coloring>>")
Delegator.setdelegate(self, delegate)
if delegate is not None:
self.config_colors()
self.bind("<<toggle-auto-coloring>>", self.toggle_colorize_event)
self.notify_range("1.0", "end")
def config_colors(self):
for tag, cnf in self.tagdefs.items():
if cnf:
apply(self.tag_configure, (tag,), cnf)
self.tag_raise('sel')
tagdefs = {
"COMMENT": {"foreground": "#dd0000"},
"KEYWORD": {"foreground": "#ff7700"},
"STRING": {"foreground": "#00aa00"},
"DEFINITION": {"foreground": "#0000ff"},
"SYNC": {}, #{"background": "#ffff00"},
"TODO": {}, #{"background": "#cccccc"},
"BREAK": {"background": "#FF7777"},
# The following is used by ReplaceDialog:
"hit": {"foreground": "#FFFFFF", "background": "#000000"},
}
def insert(self, index, chars, tags=None):
index = self.index(index)
self.delegate.insert(index, chars, tags)
self.notify_range(index, index + "+%dc" % len(chars))
def delete(self, index1, index2=None):
index1 = self.index(index1)
self.delegate.delete(index1, index2)
self.notify_range(index1)
after_id = None
allow_colorizing = 1
colorizing = 0
def notify_range(self, index1, index2=None):
self.tag_add("TODO", index1, index2)
if self.after_id:
if __debug__: print "colorizing already scheduled"
return
if self.colorizing:
self.stop_colorizing = 1
if __debug__: print "stop colorizing"
if self.allow_colorizing:
if __debug__: print "schedule colorizing"
self.after_id = self.after(1, self.recolorize)
close_when_done = None # Window to be closed when done colorizing
def close(self, close_when_done=None):
if self.after_id:
after_id = self.after_id
self.after_id = None
if __debug__: print "cancel scheduled recolorizer"
self.after_cancel(after_id)
self.allow_colorizing = 0
self.stop_colorizing = 1
if close_when_done:
if not self.colorizing:
close_when_done.destroy()
else:
self.close_when_done = close_when_done
def toggle_colorize_event(self, event):
if self.after_id:
after_id = self.after_id
self.after_id = None
if __debug__: print "cancel scheduled recolorizer"
self.after_cancel(after_id)
if self.allow_colorizing and self.colorizing:
if __debug__: print "stop colorizing"
self.stop_colorizing = 1
self.allow_colorizing = not self.allow_colorizing
if self.allow_colorizing and not self.colorizing:
self.after_id = self.after(1, self.recolorize)
if __debug__:
print "auto colorizing turned", self.allow_colorizing and "on" or "off"
return "break"
def recolorize(self):
self.after_id = None
if not self.delegate:
if __debug__: print "no delegate"
return
if not self.allow_colorizing:
if __debug__: print "auto colorizing is off"
return
if self.colorizing:
if __debug__: print "already colorizing"
return
try:
self.stop_colorizing = 0
self.colorizing = 1
if __debug__: print "colorizing..."
t0 = time.clock()
self.recolorize_main()
t1 = time.clock()
if __debug__: print "%.3f seconds" % (t1-t0)
finally:
self.colorizing = 0
if self.allow_colorizing and self.tag_nextrange("TODO", "1.0"):
if __debug__: print "reschedule colorizing"
self.after_id = self.after(1, self.recolorize)
if self.close_when_done:
top = self.close_when_done
self.close_when_done = None
top.destroy()
def recolorize_main(self):
next = "1.0"
was_ok = is_ok = 0
while 1:
item = self.tag_nextrange("TODO", next)
if not item:
break
head, tail = item
self.tag_remove("SYNC", head, tail)
item = self.tag_prevrange("SYNC", head)
if item:
head = item[1]
else:
head = "1.0"
chars = ""
mark = head
is_ok = was_ok = 0
while not (was_ok and is_ok):
next = self.index(mark + " lineend +1c")
was_ok = "SYNC" in self.tag_names(next + "-1c")
line = self.get(mark, next)
##print head, "get", mark, next, "->", `line`
if not line:
return
for tag in self.tagdefs.keys():
self.tag_remove(tag, mark, next)
chars = chars + line
m = self.prog.search(chars)
while m:
i, j = m.span()
for key, value in m.groupdict().items():
if value:
a, b = m.span(key)
self.tag_add(key,
head + "+%dc" % a,
head + "+%dc" % b)
if value in ("def", "class"):
m1 = self.idprog.match(chars, b)
if m1:
a, b = m1.span(1)
self.tag_add("DEFINITION",
head + "+%dc" % a,
head + "+%dc" % b)
m = self.prog.search(chars, j)
is_ok = "SYNC" in self.tag_names(next + "-1c")
mark = next
if is_ok:
head = mark
chars = ""
self.update()
if self.stop_colorizing:
if __debug__: print "colorizing stopped"
return
def main():
from Percolator import Percolator
root = Tk()
root.wm_protocol("WM_DELETE_WINDOW", root.quit)
text = Text(background="white")
text.pack(expand=1, fill="both")
text.focus_set()
p = Percolator(text)
d = ColorDelegator()
p.insertfilter(d)
root.mainloop()
if __name__ == "__main__":
main()
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