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#! /ufs/guido/bin/sgi/tkpython
# Tk man page browser -- currently only shows the Tcl/Tk man pages
import sys
import os
import string
import regex
from Tkinter import *
from ManPage import ManPage
MANDIR = '/usr/local/man/mann'
def listmanpages(mandir = MANDIR):
files = os.listdir(mandir)
names = []
for file in files:
if file[-2:] == '.n':
names.append(file[:-2])
names.sort()
return names
class SelectionBox:
def __init__(self, master=None):
self.choices = []
self.frame = Frame(master, {
Pack: {'expand': 1, 'fill': 'both'}})
self.master = self.frame.master
self.subframe = Frame(self.frame, {
Pack: {'expand': 0, 'fill': 'both'}})
self.listbox = Listbox(self.subframe,
{'relief': 'sunken', 'bd': 2,
'geometry': '20x6',
Pack: {'side': 'right',
'expand': 1, 'fill': 'both'}})
self.subsubframe = Frame(self.subframe, {
Pack: {'side': 'left', 'expand': 1, 'fill': 'both'}})
self.l1 = Button(self.subsubframe,
{'text': 'Display manual page named:',
'command': self.entry_cb,
Pack: {'side': 'top'}})
self.entry = Entry(self.subsubframe,
{'relief': 'sunken', 'bd': 2,
'width': 20,
Pack: {'side': 'top',
'expand': 0, 'fill': 'x'}})
self.l2frame = Frame(self.subsubframe, {
Pack: {'expand': 0, 'fill': 'none'}})
self.l2 = Button(self.l2frame,
{'text': 'Search regexp:',
'command': self.search_cb,
Pack: {'side': 'left'}})
self.casesense = Checkbutton(self.l2frame,
{'text': 'Case sensitive',
'variable': 'casesense',
'relief': 'flat',
Pack: {'side': 'left'}})
self.search = Entry(self.subsubframe,
{'relief': 'sunken', 'bd': 2,
'width': 20,
Pack: {'side': 'top',
'expand': 0, 'fill': 'x'}})
self.title = Label(self.subsubframe,
{'text': '(none)',
Pack: {'side': 'bottom'}})
self.text = ManPage(self.frame,
{'relief': 'sunken', 'bd': 2,
'wrap': 'none', 'width': 72,
Pack: {'expand': 1, 'fill': 'both'}})
self.entry.bind('<Return>', self.entry_cb)
self.search.bind('<Return>', self.search_cb)
self.listbox.bind('<Double-1>', self.listbox_cb)
self.entry.bind('<Tab>', self.entry_tab)
self.search.bind('<Tab>', self.search_tab)
self.text.bind('<Tab>', self.text_tab)
self.entry.focus_set()
def addchoice(self, choice):
if choice not in self.choices:
self.choices.append(choice)
self.choices.sort()
self.update()
def addlist(self, list):
self.choices[len(self.choices):] = list
self.choices.sort()
self.update()
def entry_cb(self, *e):
self.update()
def listbox_cb(self, e):
selection = self.listbox.curselection()
if selection and len(selection) == 1:
name = self.listbox.get(selection[0])
self.show_page(name)
def search_cb(self, *e):
self.search_string(self.search.get())
def entry_tab(self, e):
self.search.focus_set()
def search_tab(self, e):
self.entry.focus_set()
def text_tab(self, e):
self.entry.focus_set()
def updatelist(self):
key = self.entry.get()
ok = filter(lambda name, key=key, n=len(key): name[:n]==key,
self.choices)
self.listbox.delete(0, AtEnd())
exactmatch = 0
for item in ok:
if item == key: exactmatch = 1
self.listbox.insert(AtEnd(), item)
if exactmatch:
return key
elif self.listbox.size() == 1:
return self.listbox.get(0)
# Else return None, meaning not a unique selection
def update(self):
name = self.updatelist()
if name:
self.show_page(name)
self.entry.delete(0, AtEnd())
self.updatelist()
def show_page(self, name):
file = '%s/%s.n' % (MANDIR, name)
fp = os.popen('nroff -man %s | ul -i' % file, 'r')
self.text.kill()
self.title['text'] = name
self.text.parsefile(fp)
def search_string(self, search):
if not search:
print 'Empty search string'
return
if self.frame.tk.getvar('casesense') != '1':
map = regex.casefold
else:
map = None
try:
if map:
prog = regex.compile(search, map)
else:
prog = regex.compile(search)
except regex.error, msg:
print 'Regex error:', msg
return
here = self.text.index(AtInsert())
lineno = string.atoi(here[:string.find(here, '.')])
end = self.text.index(AtEnd())
endlineno = string.atoi(end[:string.find(end, '.')])
wraplineno = lineno
while 1:
lineno = lineno + 1
if lineno > endlineno:
if wraplineno <= 0:
break
endlineno = wraplineno
lineno = 0
wraplineno = 0
line = self.text.get('%d.0 linestart' % lineno,
'%d.0 lineend' % lineno)
i = prog.search(line)
if i >= 0:
n = max(1, len(prog.group(0)))
try:
self.text.tag_remove('sel',
AtSelFirst(),
AtSelLast())
except TclError:
pass
self.text.tag_add('sel',
'%d.%d' % (lineno, i),
'%d.%d' % (lineno, i+n))
self.text.mark_set(AtInsert(),
'%d.%d' % (lineno, i))
self.text.yview_pickplace(AtInsert())
break
def main():
root = Tk()
sb = SelectionBox(root)
sb.addlist(listmanpages())
if sys.argv[1:]:
sb.show_page(sys.argv[1])
root.minsize(1, 1)
root.mainloop()
main()
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