diff options
author | Guido van Rossum <guido@python.org> | 1994-07-06 21:17:21 +0000 |
---|---|---|
committer | Guido van Rossum <guido@python.org> | 1994-07-06 21:17:21 +0000 |
commit | f09b770f68ad726856c22f9217e288f408b973a6 (patch) | |
tree | d8d07f1acae6ae813cb06715d62a3ab8a7b580af /Demo/tkinter/guido/ManPage.py | |
parent | 51135691516dae9346648e99f30f6404fc90c087 (diff) | |
download | cpython-git-f09b770f68ad726856c22f9217e288f408b973a6.tar.gz |
Initial revision
Diffstat (limited to 'Demo/tkinter/guido/ManPage.py')
-rwxr-xr-x | Demo/tkinter/guido/ManPage.py | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/Demo/tkinter/guido/ManPage.py b/Demo/tkinter/guido/ManPage.py new file mode 100755 index 0000000000..993a3db41d --- /dev/null +++ b/Demo/tkinter/guido/ManPage.py @@ -0,0 +1,149 @@ +# Widget to display a man page + +import regex +from Tkinter import * +from ScrolledText import ScrolledText + +# XXX These fonts may have to be changed to match your system +BOLDFONT = '*-Courier-Bold-R-Normal-*-120-*' +ITALICFONT = '*-Courier-Medium-O-Normal-*-120-*' + +# XXX Recognizing footers is system dependent +# (This one works for IRIX 5.2 and Solaris 2.2) +footerprog = regex.compile( + '^ Page [1-9][0-9]*[ \t]+\|^.*Last change:.*[1-9][0-9]*\n') +emptyprog = regex.compile('^[ \t]*\n') +ulprog = regex.compile('^[ \t]*[Xv!_][Xv!_ \t]*\n') + +# Basic Man Page class -- does not disable editing +class EditableManPage(ScrolledText): + + def __init__(self, master=None, cnf={}): + # Initialize base class + ScrolledText.__init__(self, master, cnf) + + # Define tags for formatting styles + self.text.tag_config('bold', {'font': BOLDFONT}) + self.text.tag_config('italic', {'font': ITALICFONT}) + self.text.tag_config('underline', {'underline': 1}) + + # Create mapping from characters to tags + self.tagmap = { + 'X': 'bold', + '_': 'underline', + '!': 'italic', + } + + # Parse nroff output piped through ul -i and append it to the + # text widget + def parsefile(self, fp): + save_cursor = self.text['cursor'] + self.text['cursor'] = 'watch' + self.text.update() + ok = 0 + empty = 0 + nextline = None + while 1: + if nextline: + line = nextline + nextline = None + else: + line = fp.readline() + if not line: + break + if emptyprog.match(line) >= 0: + empty = 1 + continue + nextline = fp.readline() + if nextline and ulprog.match(nextline) >= 0: + propline = nextline + nextline = None + else: + propline = '' + if not ok: + ok = 1 + empty = 0 + continue + if footerprog.match(line) >= 0: + ok = 0 + empty = 0 + continue + if empty: + self.insert_prop('\n') + empty = 0 + p = '' + j = 0 + for i in range(min(len(propline), len(line))): + if propline[i] != p: + if j < i: + self.insert_prop(line[j:i], p) + j = i + p = propline[i] + self.insert_prop(line[j:]) + self.text['cursor'] = save_cursor + + def insert_prop(self, str, prop = ' '): + here = self.text.index(AtInsert()) + self.text.insert(AtInsert(), str) + for tag in self.tagmap.values(): + self.text.tag_remove(tag, here, AtInsert()) + if self.tagmap.has_key(prop): + self.text.tag_add(self.tagmap[prop], here, AtInsert()) + +# Readonly Man Page class -- disables editing, otherwise the same +class ReadonlyManPage(EditableManPage): + + def __init__(self, master=None, cnf={}): + # Initialize base class + EditableManPage.__init__(self, master, cnf) + + # Make the text readonly + self.text.bind('<Any-KeyPress>', self.modify_cb) + self.text.bind('<Return>', self.modify_cb) + self.text.bind('<BackSpace>', self.modify_cb) + self.text.bind('<Delete>', self.modify_cb) + self.text.bind('<Control-h>', self.modify_cb) + self.text.bind('<Control-d>', self.modify_cb) + self.text.bind('<Control-v>', self.modify_cb) + + def modify_cb(self, e): + pass + +# Alias +ManPage = ReadonlyManPage + +# Test program. +# usage: ManPage [manpage]; or ManPage [-f] file +# -f means that the file is nroff -man output run through ul -i +def test(): + import os + import sys + # XXX This directory may be different on your system + MANDIR = '/usr/local/man/mann' + DEFAULTPAGE = 'Tcl' + formatted = 0 + if sys.argv[1:] and sys.argv[1] == '-f': + formatted = 1 + del sys.argv[1] + if sys.argv[1:]: + name = sys.argv[1] + else: + name = DEFAULTPAGE + if not formatted: + if name[-2:-1] != '.': + name = name + '.n' + name = os.path.join(MANDIR, name) + root = Tk() + root.minsize(1, 1) + manpage = ManPage(root, {'relief': 'sunken', 'bd': 2, + Pack: {'expand': 1, 'fill': 'both'}}) + if formatted: + fp = open(name, 'r') + else: + fp = os.popen('nroff -man %s | ul -i' % name, 'r') + manpage.parsefile(fp) + root.mainloop() + +# Run the test program when called as a script +if __name__ == '__main__': + test() |