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Mini Shell
#! /usr/bin/env python
# Tk man page browser -- currently only shows the Tcl/Tk man pages
import sys
import os
import string
import re
from Tkinter import *
from ManPage import ManPage
MANNDIRLIST = ['/depot/sundry/man/mann','/usr/local/man/mann']
MAN3DIRLIST = ['/depot/sundry/man/man3','/usr/local/man/man3']
foundmanndir = 0
for dir in MANNDIRLIST:
if os.path.exists(dir):
MANNDIR = dir
foundmanndir = 1
foundman3dir = 0
for dir in MAN3DIRLIST:
if os.path.exists(dir):
MAN3DIR = dir
foundman3dir = 1
if not foundmanndir or not foundman3dir:
sys.stderr.write('\n')
if not foundmanndir:
msg = """\
Failed to find mann directory.
Please add the correct entry to the MANNDIRLIST
at the top of %s script.""" % \
sys.argv[0]
sys.stderr.write("%s\n\n" % msg)
if not foundman3dir:
msg = """\
Failed to find man3 directory.
Please add the correct entry to the MAN3DIRLIST
at the top of %s script.""" % \
sys.argv[0]
sys.stderr.write("%s\n\n" % msg)
sys.exit(1)
del foundmanndir
del foundman3dir
def listmanpages(mandir):
files = os.listdir(mandir)
names = []
for file in files:
if file[-2:-1] == '.' and (file[-1] in 'ln123456789'):
names.append(file[:-2])
names.sort()
return names
class SelectionBox:
def __init__(self, master=None):
self.choices = []
self.frame = Frame(master, name="frame")
self.frame.pack(expand=1, fill=BOTH)
self.master = self.frame.master
self.subframe = Frame(self.frame, name="subframe")
self.subframe.pack(expand=0, fill=BOTH)
self.leftsubframe = Frame(self.subframe, name='leftsubframe')
self.leftsubframe.pack(side=LEFT, expand=1, fill=BOTH)
self.rightsubframe = Frame(self.subframe, name='rightsubframe')
self.rightsubframe.pack(side=RIGHT, expand=1, fill=BOTH)
self.chaptervar = StringVar(master)
self.chapter = Menubutton(self.rightsubframe, name='chapter',
text='Directory', relief=RAISED,
borderwidth=2)
self.chapter.pack(side=TOP)
self.chaptermenu = Menu(self.chapter, name='chaptermenu')
self.chaptermenu.add_radiobutton(label='C functions',
value=MAN3DIR,
variable=self.chaptervar,
command=self.newchapter)
self.chaptermenu.add_radiobutton(label='Tcl/Tk functions',
value=MANNDIR,
variable=self.chaptervar,
command=self.newchapter)
self.chapter['menu'] = self.chaptermenu
self.listbox = Listbox(self.rightsubframe, name='listbox',
relief=SUNKEN, borderwidth=2,
width=20, height=5)
self.listbox.pack(expand=1, fill=BOTH)
self.l1 = Button(self.leftsubframe, name='l1',
text='Display manual page named:',
command=self.entry_cb)
self.l1.pack(side=TOP)
self.entry = Entry(self.leftsubframe, name='entry',
relief=SUNKEN, borderwidth=2,
width=20)
self.entry.pack(expand=0, fill=X)
self.l2frame = Frame(self.leftsubframe, name='l2frame')
self.l2frame.pack(expand=0, fill=NONE)
self.l2 = Button(self.l2frame, name='l2',
text='Search regexp:',
command=self.search_cb)
self.l2.pack(side=LEFT)
self.casevar = BooleanVar()
self.casesense = Checkbutton(self.l2frame, name='casesense',
text='Case sensitive',
variable=self.casevar,
relief=FLAT)
self.casesense.pack(side=LEFT)
self.search = Entry(self.leftsubframe, name='search',
relief=SUNKEN, borderwidth=2,
width=20)
self.search.pack(expand=0, fill=X)
self.title = Label(self.leftsubframe, name='title',
text='(none)')
self.title.pack(side=BOTTOM)
self.text = ManPage(self.frame, name='text',
relief=SUNKEN, borderwidth=2,
wrap=NONE, width=72,
selectbackground='pink')
self.text.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()
self.chaptervar.set(MANNDIR)
self.newchapter()
def newchapter(self):
mandir = self.chaptervar.get()
self.choices = []
self.addlist(listmanpages(mandir))
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)
if not ok:
self.frame.bell()
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
n = self.listbox.size()
if n == 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.?' % (self.chaptervar.get(), 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:
self.frame.bell()
print 'Empty search string'
return
if not self.casevar.get():
map = re.IGNORECASE
else:
map = None
try:
if map:
prog = re.compile(search, map)
else:
prog = re.compile(search)
except re.error, msg:
self.frame.bell()
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
found = 0
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:
found = 1
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
if not found:
self.frame.bell()
def main():
root = Tk()
sb = SelectionBox(root)
if sys.argv[1:]:
sb.show_page(sys.argv[1])
root.minsize(1, 1)
root.mainloop()
main()
Zerion Mini Shell 1.0