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Edit File : grep.py \| Size : 6.58 KB
"""Grep dialog for Find in Files functionality. Inherits from SearchDialogBase for GUI and uses searchengine to prepare search pattern. """ import fnmatch import os import sys from tkinter import StringVar, BooleanVar from tkinter.ttk import Checkbutton from idlelib.searchbase import SearchDialogBase from idlelib import searchengine # Importing OutputWindow here fails due to import loop # EditorWindow -> GrepDialop -> OutputWindow -> EditorWindow def grep(text, io=None, flist=None): """Create or find singleton GrepDialog instance. Args: text: Text widget that contains the selected text for default search phrase. io: iomenu.IOBinding instance with default path to search. flist: filelist.FileList instance for OutputWindow parent. """ root = text._root() engine = searchengine.get(root) if not hasattr(engine, "_grepdialog"): engine._grepdialog = GrepDialog(root, engine, flist) dialog = engine._grepdialog searchphrase = text.get("sel.first", "sel.last") dialog.open(text, searchphrase, io) class GrepDialog(SearchDialogBase): "Dialog for searching multiple files." title = "Find in Files Dialog" icon = "Grep" needwrapbutton = 0 def __init__(self, root, engine, flist): """Create search dialog for searching for a phrase in the file system. Uses SearchDialogBase as the basis for the GUI and a searchengine instance to prepare the search. Attributes: globvar: Value of Text Entry widget for path to search. recvar: Boolean value of Checkbutton widget for traversing through subdirectories. """ SearchDialogBase.__init__(self, root, engine) self.flist = flist self.globvar = StringVar(root) self.recvar = BooleanVar(root) def open(self, text, searchphrase, io=None): "Make dialog visible on top of others and ready to use." SearchDialogBase.open(self, text, searchphrase) if io: path = io.filename or "" else: path = "" dir, base = os.path.split(path) head, tail = os.path.splitext(base) if not tail: tail = ".py" self.globvar.set(os.path.join(dir, "*" + tail)) def create_entries(self): "Create base entry widgets and add widget for search path." SearchDialogBase.create_entries(self) self.globent = self.make_entry("In files:", self.globvar)[0] def create_other_buttons(self): "Add check button to recurse down subdirectories." btn = Checkbutton( self.make_frame()[0], variable=self.recvar, text="Recurse down subdirectories") btn.pack(side="top", fill="both") def create_command_buttons(self): "Create base command buttons and add button for search." SearchDialogBase.create_command_buttons(self) self.make_button("Search Files", self.default_command, 1) def default_command(self, event=None): """Grep for search pattern in file path. The default command is bound to <Return>. If entry values are populated, set OutputWindow as stdout and perform search. The search dialog is closed automatically when the search begins. """ prog = self.engine.getprog() if not prog: return path = self.globvar.get() if not path: self.top.bell() return from idlelib.outwin import OutputWindow # leave here! save = sys.stdout try: sys.stdout = OutputWindow(self.flist) self.grep_it(prog, path) finally: sys.stdout = save def grep_it(self, prog, path): """Search for prog within the lines of the files in path. For the each file in the path directory, open the file and search each line for the matching pattern. If the pattern is found, write the file and line information to stdout (which is an OutputWindow). """ dir, base = os.path.split(path) list = self.findfiles(dir, base, self.recvar.get()) list.sort() self.close() pat = self.engine.getpat() print(f"Searching {pat!r} in {path} ...") hits = 0 try: for fn in list: try: with open(fn, errors='replace') as f: for lineno, line in enumerate(f, 1): if line[-1:] == '\n': line = line[:-1] if prog.search(line): sys.stdout.write(f"{fn}: {lineno}: {line}\n") hits += 1 except OSError as msg: print(msg) print(f"Hits found: {hits}\n(Hint: right-click to open locations.)" if hits else "No hits.") except AttributeError: # Tk window has been closed, OutputWindow.text = None, # so in OW.write, OW.text.insert fails. pass def findfiles(self, dir, base, rec): """Return list of files in the dir that match the base pattern. If rec is True, recursively iterate through subdirectories. """ try: names = os.listdir(dir or os.curdir) except OSError as msg: print(msg) return [] list = [] subdirs = [] for name in names: fn = os.path.join(dir, name) if os.path.isdir(fn): subdirs.append(fn) else: if fnmatch.fnmatch(name, base): list.append(fn) if rec: for subdir in subdirs: list.extend(self.findfiles(subdir, base, rec)) return list def _grep_dialog(parent): # htest # from tkinter import Toplevel, Text, SEL, END from tkinter.ttk import Button from idlelib.pyshell import PyShellFileList top = Toplevel(parent) top.title("Test GrepDialog") x, y = map(int, parent.geometry().split('+')[1:]) top.geometry(f"+{x}+{y + 175}") flist = PyShellFileList(top) text = Text(top, height=5) text.pack() def show_grep_dialog(): text.tag_add(SEL, "1.0", END) grep(text, flist=flist) text.tag_remove(SEL, "1.0", END) button = Button(top, text="Show GrepDialog", command=show_grep_dialog) button.pack() if __name__ == "__main__": from unittest import main main('idlelib.idle_test.test_grep', verbosity=2, exit=False) from idlelib.idle_test.htest import run run(_grep_dialog) Back

Edit File : grep.py | Size : 6.58 KB

"""Grep dialog for Find in Files functionality.

Inherits from SearchDialogBase for GUI and uses searchengine
   to prepare search pattern.
"""
import fnmatch
import os
import sys

from tkinter import StringVar, BooleanVar
from tkinter.ttk import Checkbutton

from idlelib.searchbase import SearchDialogBase
from idlelib import searchengine

# Importing OutputWindow here fails due to import loop
# EditorWindow -> GrepDialop -> OutputWindow -> EditorWindow

def grep(text, io=None, flist=None):
    """Create or find singleton GrepDialog instance.

Args:
        text: Text widget that contains the selected text for
              default search phrase.
        io: iomenu.IOBinding instance with default path to search.
        flist: filelist.FileList instance for OutputWindow parent.
    """

root = text._root()
    engine = searchengine.get(root)
    if not hasattr(engine, "_grepdialog"):
        engine._grepdialog = GrepDialog(root, engine, flist)
    dialog = engine._grepdialog
    searchphrase = text.get("sel.first", "sel.last")
    dialog.open(text, searchphrase, io)

class GrepDialog(SearchDialogBase):
    "Dialog for searching multiple files."

title = "Find in Files Dialog"
    icon = "Grep"
    needwrapbutton = 0

def __init__(self, root, engine, flist):
        """Create search dialog for searching for a phrase in the file system.

Uses SearchDialogBase as the basis for the GUI and a
        searchengine instance to prepare the search.

Attributes:
            globvar: Value of Text Entry widget for path to search.
            recvar: Boolean value of Checkbutton widget
                    for traversing through subdirectories.
        """
        SearchDialogBase.__init__(self, root, engine)
        self.flist = flist
        self.globvar = StringVar(root)
        self.recvar = BooleanVar(root)

def open(self, text, searchphrase, io=None):
        "Make dialog visible on top of others and ready to use."
        SearchDialogBase.open(self, text, searchphrase)
        if io:
            path = io.filename or ""
        else:
            path = ""
        dir, base = os.path.split(path)
        head, tail = os.path.splitext(base)
        if not tail:
            tail = ".py"
        self.globvar.set(os.path.join(dir, "*" + tail))

def create_entries(self):
        "Create base entry widgets and add widget for search path."
        SearchDialogBase.create_entries(self)
        self.globent = self.make_entry("In files:", self.globvar)[0]

def create_other_buttons(self):
        "Add check button to recurse down subdirectories."
        btn = Checkbutton(
                self.make_frame()[0], variable=self.recvar,
                text="Recurse down subdirectories")
        btn.pack(side="top", fill="both")

def create_command_buttons(self):
        "Create base command buttons and add button for search."
        SearchDialogBase.create_command_buttons(self)
        self.make_button("Search Files", self.default_command, 1)

def default_command(self, event=None):
        """Grep for search pattern in file path. The default command is bound
        to <Return>.

If entry values are populated, set OutputWindow as stdout
        and perform search.  The search dialog is closed automatically
        when the search begins.
        """
        prog = self.engine.getprog()
        if not prog:
            return
        path = self.globvar.get()
        if not path:
            self.top.bell()
            return
        from idlelib.outwin import OutputWindow  # leave here!
        save = sys.stdout
        try:
            sys.stdout = OutputWindow(self.flist)
            self.grep_it(prog, path)
        finally:
            sys.stdout = save

def grep_it(self, prog, path):
        """Search for prog within the lines of the files in path.

For the each file in the path directory, open the file and
        search each line for the matching pattern.  If the pattern is
        found,  write the file and line information to stdout (which
        is an OutputWindow).
        """
        dir, base = os.path.split(path)
        list = self.findfiles(dir, base, self.recvar.get())
        list.sort()
        self.close()
        pat = self.engine.getpat()
        print(f"Searching {pat!r} in {path} ...")
        hits = 0
        try:
            for fn in list:
                try:
                    with open(fn, errors='replace') as f:
                        for lineno, line in enumerate(f, 1):
                            if line[-1:] == '\n':
                                line = line[:-1]
                            if prog.search(line):
                                sys.stdout.write(f"{fn}: {lineno}: {line}\n")
                                hits += 1
                except OSError as msg:
                    print(msg)
            print(f"Hits found: {hits}\n(Hint: right-click to open locations.)"
                  if hits else "No hits.")
        except AttributeError:
            # Tk window has been closed, OutputWindow.text = None,
            # so in OW.write, OW.text.insert fails.
            pass

def findfiles(self, dir, base, rec):
        """Return list of files in the dir that match the base pattern.

If rec is True, recursively iterate through subdirectories.
        """
        try:
            names = os.listdir(dir or os.curdir)
        except OSError as msg:
            print(msg)
            return []
        list = []
        subdirs = []
        for name in names:
            fn = os.path.join(dir, name)
            if os.path.isdir(fn):
                subdirs.append(fn)
            else:
                if fnmatch.fnmatch(name, base):
                    list.append(fn)
        if rec:
            for subdir in subdirs:
                list.extend(self.findfiles(subdir, base, rec))
        return list

def _grep_dialog(parent):  # htest #
    from tkinter import Toplevel, Text, SEL, END
    from tkinter.ttk import Button
    from idlelib.pyshell import PyShellFileList
    top = Toplevel(parent)
    top.title("Test GrepDialog")
    x, y = map(int, parent.geometry().split('+')[1:])
    top.geometry(f"+{x}+{y + 175}")

flist = PyShellFileList(top)
    text = Text(top, height=5)
    text.pack()

def show_grep_dialog():
        text.tag_add(SEL, "1.0", END)
        grep(text, flist=flist)
        text.tag_remove(SEL, "1.0", END)

button = Button(top, text="Show GrepDialog", command=show_grep_dialog)
    button.pack()

if __name__ == "__main__":
    from unittest import main
    main('idlelib.idle_test.test_grep', verbosity=2, exit=False)

from idlelib.idle_test.htest import run
    run(_grep_dialog)

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