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lib64
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python2.7
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idlelib
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files >> //lib64/python2.7/idlelib/ColorDelegator.py
import time import re import keyword import __builtin__ from idlelib.Delegator import Delegator from idlelib.configHandler import idleConf DEBUG = False def any(name, alternates): "Return a named group pattern matching list of alternates." return "(?P<%s>" % name + "|".join(alternates) + ")" def make_pat(): kw = r"\b" + any("KEYWORD", keyword.kwlist) + r"\b" builtinlist = [str(name) for name in dir(__builtin__) if not name.startswith('_')] # We don't know whether "print" is a function or a keyword, # so we always treat is as a keyword (the most common case). builtinlist.remove('print') # self.file = file("file") : # 1st 'file' colorized normal, 2nd as builtin, 3rd as string builtin = r"([^.'\"\\#]\b|^)" + any("BUILTIN", builtinlist) + r"\b" comment = any("COMMENT", [r"#[^\n]*"]) stringprefix = r"(\br|u|ur|R|U|UR|Ur|uR|b|B|br|Br|bR|BR)?" sqstring = stringprefix + r"'[^'\\\n]*(\\.[^'\\\n]*)*'?" dqstring = stringprefix + r'"[^"\\\n]*(\\.[^"\\\n]*)*"?' sq3string = stringprefix + r"'''[^'\\]*((\\.|'(?!''))[^'\\]*)*(''')?" dq3string = stringprefix + r'"""[^"\\]*((\\.|"(?!""))[^"\\]*)*(""")?' string = any("STRING", [sq3string, dq3string, sqstring, dqstring]) return kw + "|" + builtin + "|" + 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 self.LoadTagDefs() 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") else: # No delegate - stop any colorizing self.stop_colorizing = True self.allow_colorizing = False def config_colors(self): for tag, cnf in self.tagdefs.items(): if cnf: self.tag_configure(tag, **cnf) self.tag_raise('sel') def LoadTagDefs(self): theme = idleConf.CurrentTheme() self.tagdefs = { "COMMENT": idleConf.GetHighlight(theme, "comment"), "KEYWORD": idleConf.GetHighlight(theme, "keyword"), "BUILTIN": idleConf.GetHighlight(theme, "builtin"), "STRING": idleConf.GetHighlight(theme, "string"), "DEFINITION": idleConf.GetHighlight(theme, "definition"), "SYNC": {'background':None,'foreground':None}, "TODO": {'background':None,'foreground':None}, "ERROR": idleConf.GetHighlight(theme, "error"), # The following is used by ReplaceDialog: "hit": idleConf.GetHighlight(theme, "hit"), } if DEBUG: print 'tagdefs',self.tagdefs 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 = True colorizing = False 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 = True 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 = False self.stop_colorizing = True 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 = True 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 = False self.colorizing = True if DEBUG: print "colorizing..." t0 = time.clock() self.recolorize_main() t1 = time.clock() if DEBUG: print "%.3f seconds" % (t1-t0) finally: self.colorizing = False 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" while True: 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 = "" next = head lines_to_get = 1 ok = False while not ok: mark = next next = self.index(mark + "+%d lines linestart" % lines_to_get) lines_to_get = min(lines_to_get * 2, 100) ok = "SYNC" in self.tag_names(next + "-1c") line = self.get(mark, next) ##print head, "get", mark, next, "->", repr(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: 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, m.end()) if "SYNC" in self.tag_names(next + "-1c"): head = next chars = "" else: ok = False if not ok: # We're in an inconsistent state, and the call to # update may tell us to stop. It may also change # the correct value for "next" (since this is a # line.col string, not a true mark). So leave a # crumb telling the next invocation to resume here # in case update tells us to leave. self.tag_add("TODO", next) self.update() if self.stop_colorizing: if DEBUG: print "colorizing stopped" return def removecolors(self): for tag in self.tagdefs.keys(): self.tag_remove(tag, "1.0", "end") def _color_delegator(parent): # htest # from Tkinter import Toplevel, Text from idlelib.Percolator import Percolator top = Toplevel(parent) top.title("Test ColorDelegator") top.geometry("200x100+%d+%d" % (parent.winfo_rootx() + 200, parent.winfo_rooty() + 150)) source = "if somename: x = 'abc' # comment\nprint\n" text = Text(top, background="white") text.pack(expand=1, fill="both") text.insert("insert", source) text.focus_set() p = Percolator(text) d = ColorDelegator() p.insertfilter(d) if __name__ == "__main__": from idlelib.idle_test.htest import run run(_color_delegator)
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