diff options
Diffstat (limited to 'Demo/tkinter/guido/manpage.py')
| -rw-r--r-- | Demo/tkinter/guido/manpage.py | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/Demo/tkinter/guido/manpage.py b/Demo/tkinter/guido/manpage.py deleted file mode 100644 index 750c675..0000000 --- a/Demo/tkinter/guido/manpage.py +++ /dev/null @@ -1,215 +0,0 @@ -# Widget to display a man page - -import os -import re -import sys - -from tkinter import * -from tkinter.font import Font -from tkinter.scrolledtext import ScrolledText - -# XXX Recognizing footers is system dependent -# (This one works for IRIX 5.2 and Solaris 2.2) -footerprog = re.compile( - '^ Page [1-9][0-9]*[ \t]+\|^.*Last change:.*[1-9][0-9]*\n') -emptyprog = re.compile('^[ \t]*\n') -ulprog = re.compile('^[ \t]*[Xv!_][Xv!_ \t]*\n') - - -class EditableManPage(ScrolledText): - """Basic Man Page class -- does not disable editing.""" - - def __init__(self, master=None, **cnf): - ScrolledText.__init__(self, master, **cnf) - - bold = Font(font=self['font']).copy() - bold.config(weight='bold') - italic = Font(font=self['font']).copy() - italic.config(slant='italic') - - # Define tags for formatting styles - self.tag_config('X', underline=1) - self.tag_config('!', font=bold) - self.tag_config('_', font=italic) - - # Set state to idle - self.fp = None - self.lineno = 0 - - def busy(self): - """Test whether we are busy parsing a file.""" - return self.fp != None - - def kill(self): - """Ensure we're not busy.""" - if self.busy(): - self._endparser() - - def asyncparsefile(self, fp): - """Parse a file, in the background.""" - self._startparser(fp) - self.tk.createfilehandler(fp, READABLE, - self._filehandler) - - parsefile = asyncparsefile # Alias - - def _filehandler(self, fp, mask): - """I/O handler used by background parsing.""" - nextline = self.fp.readline() - if not nextline: - self._endparser() - return - self._parseline(nextline) - - def syncparsefile(self, fp): - """Parse a file, now (cannot be aborted).""" - self._startparser(fp) - while True: - nextline = fp.readline() - if not nextline: - break - self._parseline(nextline) - self._endparser() - - def _startparser(self, fp): - """Initialize parsing from a particular file -- must not be busy.""" - if self.busy(): - raise RuntimeError('startparser: still busy') - fp.fileno() # Test for file-ness - self.fp = fp - self.lineno = 0 - self.ok = 0 - self.empty = 0 - self.buffer = None - savestate = self['state'] - self['state'] = NORMAL - self.delete('1.0', END) - self['state'] = savestate - - def _endparser(self): - """End parsing -- must be busy, need not be at EOF.""" - if not self.busy(): - raise RuntimeError('endparser: not busy') - if self.buffer: - self._parseline('') - try: - self.tk.deletefilehandler(self.fp) - except TclError: - pass - self.fp.close() - self.fp = None - del self.ok, self.empty, self.buffer - - def _parseline(self, nextline): - """Parse a single line.""" - if not self.buffer: - # Save this line -- we need one line read-ahead - self.buffer = nextline - return - if emptyprog.match(self.buffer): - # Buffered line was empty -- set a flag - self.empty = 1 - self.buffer = nextline - return - textline = self.buffer - if ulprog.match(nextline): - # Next line is properties for buffered line - propline = nextline - self.buffer = None - else: - # Next line is read-ahead - propline = None - self.buffer = nextline - if not self.ok: - # First non blank line after footer must be header - # -- skip that too - self.ok = 1 - self.empty = 0 - return - if footerprog.match(textline): - # Footer -- start skipping until next non-blank line - self.ok = 0 - self.empty = 0 - return - savestate = self['state'] - self['state'] = NORMAL - if TkVersion >= 4.0: - self.mark_set('insert', 'end-1c') - else: - self.mark_set('insert', END) - if self.empty: - # One or more previous lines were empty - # -- insert one blank line in the text - self._insert_prop('\n') - self.lineno = self.lineno + 1 - self.empty = 0 - if not propline: - # No properties - self._insert_prop(textline) - else: - # Search for properties - p = '' - j = 0 - for i in range(min(len(propline), len(textline))): - if propline[i] != p: - if j < i: - self._insert_prop(textline[j:i], p) - j = i - p = propline[i] - self._insert_prop(textline[j:]) - self.lineno = self.lineno + 1 - self['state'] = savestate - - def _insert_prop(self, str, prop = ' '): - """Insert a string at the end, with at most one property (tag).""" - here = self.index(AtInsert()) - self.insert(AtInsert(), str) - if TkVersion <= 4.0: - tags = self.tag_names(here) - for tag in tags: - self.tag_remove(tag, here, AtInsert()) - if prop != ' ': - self.tag_add(prop, here, AtInsert()) - - -class ReadonlyManPage(EditableManPage): - """Readonly Man Page class -- disables editing, otherwise the same.""" - - def __init__(self, master=None, **cnf): - cnf['state'] = DISABLED - EditableManPage.__init__(self, master, **cnf) - -# Alias -ManPage = ReadonlyManPage - -# usage: ManPage [manpage]; or ManPage [-f] file -# -f means that the file is nroff -man output run through ul -i -def main(): - # XXX This directory may be different on your system - MANDIR = '' - 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, borderwidth=2) - manpage.pack(expand=1, fill=BOTH) - if formatted: - fp = open(name, 'r') - else: - fp = os.popen('nroff -man -c %s | ul -i' % name, 'r') - manpage.parsefile(fp) - root.mainloop() - -if __name__ == '__main__': - main() |