Removing these scripts. redemo.py lives on in Tools/scripts/.

regexdemo.py is obsolete with the regex module.

Demo/tkinter/guido/redemo.py

-"""Basic regular expression demostration facility (Perl style syntax)."""
-
-from Tkinter import *
-import re
-
-class ReDemo:
-	
-	def __init__(self, master):
-		self.master = master
-
-		self.promptdisplay = Label(self.master, anchor=W,
-			text="Enter a Perl-style regular expression:")
-		self.promptdisplay.pack(side=TOP, fill=X)
-
-		self.regexdisplay = Entry(self.master)
-		self.regexdisplay.pack(fill=X)
-		self.regexdisplay.focus_set()
-
-		self.addoptions()
-
-		self.statusdisplay = Label(self.master, text="", anchor=W)
-		self.statusdisplay.pack(side=TOP, fill=X)
-
-		self.labeldisplay = Label(self.master, anchor=W,
-			text="Enter a string to search:")
-		self.labeldisplay.pack(fill=X)
-		self.labeldisplay.pack(fill=X)
-
-		self.showframe = Frame(master)
-		self.showframe.pack(fill=X, anchor=W)
-
-		self.showvar = StringVar(master)
-		self.showvar.set("first")
-
-		self.showfirstradio = Radiobutton(self.showframe,
-						 text="Highlight first match",
-						  variable=self.showvar,
-						  value="first",
-						  command=self.recompile)
-		self.showfirstradio.pack(side=LEFT)
-
-		self.showallradio = Radiobutton(self.showframe,
-						text="Highlight all matches",
-						variable=self.showvar,
-						value="all",
-						command=self.recompile)
-		self.showallradio.pack(side=LEFT)
-
-		self.stringdisplay = Text(self.master, width=60, height=4)
-		self.stringdisplay.pack(fill=BOTH, expand=1)
-		self.stringdisplay.tag_configure("hit", background="yellow")
-
-		self.grouplabel = Label(self.master, text="Groups:", anchor=W)
-		self.grouplabel.pack(fill=X)
-
-		self.grouplist = Listbox(self.master)
-		self.grouplist.pack(expand=1, fill=BOTH)
-
-		self.regexdisplay.bind('<Key>', self.recompile)
-		self.stringdisplay.bind('<Key>', self.reevaluate)
-
-		self.compiled = None
-		self.recompile()
-
-		btags = self.regexdisplay.bindtags()
-		self.regexdisplay.bindtags(btags[1:] + btags[:1])
-
-		btags = self.stringdisplay.bindtags()
-		self.stringdisplay.bindtags(btags[1:] + btags[:1])
-	
-	def addoptions(self):
-		self.frames = []
-		self.boxes = []
-		self.vars = []
-		for name in ('IGNORECASE',
-			     'LOCALE',
-			     'MULTILINE',
-			     'DOTALL',
-			     'VERBOSE'):
-			if len(self.boxes) % 3 == 0:
-				frame = Frame(self.master)
-				frame.pack(fill=X)
-				self.frames.append(frame)
-			val = getattr(re, name)
-			var = IntVar()
-			box = Checkbutton(frame,
-				variable=var, text=name,
-				offvalue=0, onvalue=val,
-				command=self.recompile)
-			box.pack(side=LEFT)
-			self.boxes.append(box)
-			self.vars.append(var)
-	
-	def getflags(self):
-		flags = 0
-		for var in self.vars:
-			flags = flags | var.get()
-		flags = flags
-		return flags
-	
-	def recompile(self, event=None):
-		try:
-			self.compiled = re.compile(self.regexdisplay.get(),
-						   self.getflags())
-			bg = self.promptdisplay['background']
-			self.statusdisplay.config(text="", background=bg)
-		except re.error, msg:
-			self.compiled = None
-			self.statusdisplay.config(
-				text="re.error: %s" % str(msg),
-				background="red")
-		self.reevaluate()
-	
-	def reevaluate(self, event=None):
-		try:
-			self.stringdisplay.tag_remove("hit", "1.0", END)
-		except TclError:
-			pass
-		try:
-			self.stringdisplay.tag_remove("hit0", "1.0", END)
-		except TclError:
-			pass
-		self.grouplist.delete(0, END)
-		if not self.compiled:
-			return
-		self.stringdisplay.tag_configure("hit", background="yellow")
-		self.stringdisplay.tag_configure("hit0", background="orange")
-		text = self.stringdisplay.get("1.0", END)
-		last = 0
-		nmatches = 0
-		while last <= len(text):
-			m = self.compiled.search(text, last)
-			if m is None:
-				break
-			first, last = m.span()
-			if last == first:
-				last = first+1
-				tag = "hit0"
-			else:
-				tag = "hit"
-			pfirst = "1.0 + %d chars" % first
-			plast = "1.0 + %d chars" % last
-			self.stringdisplay.tag_add(tag, pfirst, plast)
-			if nmatches == 0:
-				self.stringdisplay.yview_pickplace(pfirst)
-				groups = list(m.groups())
-				groups.insert(0, m.group())
-				for i in range(len(groups)):
-					g = "%2d: %s" % (i, `groups[i]`)
-					self.grouplist.insert(END, g)
-			nmatches = nmatches + 1
-			if self.showvar.get() == "first":
-				break
-
-		if nmatches == 0:
-			self.statusdisplay.config(text="(no match)",
-						  background="yellow")
-		else:
-			self.statusdisplay.config(text="")
-
-
-# Main function, run when invoked as a stand-alone Python program.
-
-def main():
-    root = Tk()
-    demo = ReDemo(root)
-    root.protocol('WM_DELETE_WINDOW', root.quit)
-    root.mainloop()
-
-if __name__ == '__main__':
-    main()

Demo/tkinter/guido/regexdemo.py

-"""Basic regular expression demostration facility.
-
-This displays a window with two type-in boxes.  In the top box, you enter a 
-regular expression.  In the bottom box, you enter a string.  The first 
-match in the string of the regular expression is highlighted with a yellow 
-background (or red if the match is empty -- then the character at the match 
-is highlighted).  The highlighting is continuously updated.  At the bottom 
-are a number of checkboxes which control the regular expression syntax used 
-(see the regex_syntax module for descriptions).  When there's no match, or 
-when the regular expression is syntactically incorrect, an error message is
-displayed.
-
-"""
-
-from Tkinter import *
-import regex
-import regex_syntax
-
-class RegexDemo:
-	
-	def __init__(self, master):
-		self.master = master
-		self.topframe = Frame(self.master)
-		self.topframe.pack(fill=X)
-		self.promptdisplay = Label(self.topframe, text="Enter a regex:")
-		self.promptdisplay.pack(side=LEFT)
-		self.statusdisplay = Label(self.topframe, text="", anchor=W)
-		self.statusdisplay.pack(side=LEFT, fill=X)
-		self.regexdisplay = Entry(self.master)
-		self.regexdisplay.pack(fill=X)
-		self.regexdisplay.focus_set()
-		self.labeldisplay = Label(self.master, anchor=W,
-			text="Enter a string:")
-		self.labeldisplay.pack(fill=X)
-		self.labeldisplay.pack(fill=X)
-		self.stringdisplay = Text(self.master, width=60, height=4)
-		self.stringdisplay.pack(fill=BOTH, expand=1)
-		self.stringdisplay.tag_configure("hit", background="yellow")
-		self.addoptions()
-		self.regexdisplay.bind('<Key>', self.recompile)
-		self.stringdisplay.bind('<Key>', self.reevaluate)
-		self.compiled = None
-		self.recompile()
-		btags = self.regexdisplay.bindtags()
-		self.regexdisplay.bindtags(btags[1:] + btags[:1])
-		btags = self.stringdisplay.bindtags()
-		self.stringdisplay.bindtags(btags[1:] + btags[:1])
-	
-	def addoptions(self):
-		self.frames = []
-		self.boxes = []
-		self.vars = []
-		for name in (	'RE_NO_BK_PARENS',
-				'RE_NO_BK_VBAR',
-				'RE_BK_PLUS_QM',
-				'RE_TIGHT_VBAR',
-				'RE_NEWLINE_OR',
-				'RE_CONTEXT_INDEP_OPS'):
-			if len(self.boxes) % 3 == 0:
-				frame = Frame(self.master)
-				frame.pack(fill=X)
-				self.frames.append(frame)
-			val = getattr(regex_syntax, name)
-			var = IntVar()
-			box = Checkbutton(frame,
-				variable=var, text=name,
-				offvalue=0, onvalue=val,
-				command=self.newsyntax)
-			box.pack(side=LEFT)
-			self.boxes.append(box)
-			self.vars.append(var)
-	
-	def newsyntax(self):
-		syntax = 0
-		for var in self.vars:
-			syntax = syntax | var.get()
-		regex.set_syntax(syntax)
-		self.recompile()
-	
-	def recompile(self, event=None):
-		try:
-			self.compiled = regex.compile(self.regexdisplay.get())
-			self.statusdisplay.config(text="")
-		except regex.error, msg:
-			self.compiled = None
-			self.statusdisplay.config(text="regex.error: %s" % str(msg))
-		self.reevaluate()
-	
-	def reevaluate(self, event=None):
-		try:
-			self.stringdisplay.tag_remove("hit", "1.0", END)
-		except TclError:
-			pass
-		if not self.compiled:
-			return
-		text = self.stringdisplay.get("1.0", END)
-		i = self.compiled.search(text)
-		if i < 0:
-			self.statusdisplay.config(text="(no match)")
-		else:
-			self.statusdisplay.config(text="")
-			regs = self.compiled.regs
-			first, last = regs[0]
-			if last == first:
-				last = first+1
-				self.stringdisplay.tag_configure("hit",
-					background="red")
-			else:
-				self.stringdisplay.tag_configure("hit",
-					background="yellow")
-			pfirst = "1.0 + %d chars" % first
-			plast = "1.0 + %d chars" % last
-			self.stringdisplay.tag_add("hit", pfirst, plast)
-			self.stringdisplay.yview_pickplace(pfirst)
-
-
-
-# Main function, run when invoked as a stand-alone Python program.
-
-def main():
-    root = Tk()
-    demo = RegexDemo(root)
-    root.protocol('WM_DELETE_WINDOW', root.quit)
-    root.mainloop()
-
-if __name__ == '__main__':
-    main()