import os, commands, re, sets, tempfile
from subprocess import Popen, PIPE, STDOUT

import buffer, default, dirutil, regex, util, window
from point import Point

from method import DATATYPES, Method, Argument

class Search(Method):
    '''Interactive search; finds next occurance of text in buffer'''
    is_literal = True
    direction = 'next'
    prompt = 'I-Search: '
    def execute(self, w, **vargs):
        self.old_cursor = w.logical_cursor()
        self.old_window = w
        w.application.open_mini_buffer(self.prompt, lambda x: None, self, None, 'search')
class ReverseSearch(Search):
    '''Interactive search; finds previous occurance of text in buffer'''
    direction = 'previous'

class RegexSearch(Search):
    '''Interactive search; finds next occurance of regex in buffer'''
    is_literal = False
    prompt = 'I-RegexSearch: '
class RegexReverseSearch(RegexSearch):
    '''Interactive search; finds prevoius occurance of regex in buffer'''
    direction = 'previous'
    
class Replace(Method):
    '''Replace occurances of string X with string Y'''
    is_literal = True
    args = [Argument('before', prompt="Replace String: ",
                     default=default.last_replace_before, load_default=True),
            Argument('after', prompt="Replace With: ",
                     default=default.last_replace_after, load_default=True)]
    def _execute(self, w, **vargs):
        a = w.application
        a.last_replace_before = self.before = vargs['before']
        a.last_replace_after = self.after = vargs['after']
        self.old_window = w
        a.open_mini_buffer('I-Replace: ', lambda x: None, self, None, 'replace')
class RegexReplace(Method):
    '''Replace occurances of string X with string Y'''
    is_literal = False
    args = [Argument('before', prompt="Replace Regex: ",
                     default=default.last_replace_before, load_default=True),
            Argument('after', prompt="Replace With: ",
                     default=default.last_replace_after, load_default=True)]
    def _execute(self, w, **vargs):
        w.application.last_replace_before = self.before = vargs['before']
        w.application.last_replace_after  = self.after = vargs['after']
        self.old_window = w
        f = lambda x: None
        w.application.open_mini_buffer('I-RegexReplace: ', f, self, None, 'replace')