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pyp_beta
#!/usr/bin/env python
#version 2.13
#author tobyrosen@gmail.com
#Copyright (c) 2011-2015 Toby Rosen
#Distributed under the New BSD License.
#All rights reserved.
#Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
#Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
#Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation
#and/or other materials provided with the distribution.
#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
#THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
#BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
#IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
#OF THE POSSIBILITY OF SUCH DAMAGE.
import optparse
import sys
import os
import time
import json
import glob
import tempfile
import datetime
import getpass
import re
import math
#try to import user customized classes if they exist. default is null class.
try:
from PypCustom import PypCustom
except ImportError:
class PypCustom():
pass
try:
from PypCustom import PowerPipeListCustom
except ImportError :
class PowerPipeListCustom():
pass
try:
from PypCustom import PypStrCustom
except ImportError :
class PypStrCustom():
pass
try :
from PypCustom import PypListCustom
except ImportError:
class PypListCustom():
pass
try:
from PypCustom import PypFunctionCustom
except ImportError:
class PypFunctionCustom():
pass
class Colors(object):
'''defines basic color scheme'''
OFF = chr(27) + '[0m'
RED = chr(27) + '[31m'
GREEN = chr(27) + '[32m'
YELLOW = chr(27) + '[33m'
MAGENTA = chr(27) + '[35m'
CYAN = chr(27) + '[36m'
WHITE = chr(27) + '[37m'
BLUE = chr(27) + '[34m'
BOLD = chr(27) + '[1m'
COLORS = [OFF, RED, GREEN, YELLOW, MAGENTA, CYAN, WHITE, BLUE, BOLD]
class NoColors(object):
'''defines basic null color scheme'''
OFF = ''
RED = ''
GREEN =''
YELLOW = ''
MAGENTA = ''
CYAN = ''
WHITE =''
BLUE = ''
BOLD = ''
COLORS = [OFF, RED, GREEN, YELLOW, MAGENTA, CYAN, WHITE, BLUE, BOLD]
class HistoryObject(object):
'''
wrapped object that allows history to be stored in container. Used for keeping history
when rearrangeing pp lists
'''
def __init__(self, wrapped_obj):
self.__wrapped = wrapped_obj
self.current = 0
def wrapped_object(self):
return self.__wrapped
def set_wrapped_object(self, new_value):
self.__wrapped = new_value
def __len__(self):
try:
length = len(self.__wrapped_obj)
except : #bouleons etc
length = 1
return length
def __getitem__(self, index):
return self.__wrapped[index]
def __getattr__(self, name):
return getattr(self.__wrapped, name)
def __cmp__(self, other):
return cmp(self.__wrapped, other)
def __str__(self):
return str(self.__wrapped)
def __contains__(self, item):
if item in self.__wrapped:
return True
else:
return False
class PowerPipeList(list,PowerPipeListCustom):
'''
defines pp object, allows manipulation of entire input using python list methods
'''
def __init__(self, *args):
super(PowerPipeList, self).__init__(*args)
try:
PowerPipeListCustom.__init__(self)
except AttributeError:
pass
self.pyp = Pyp()
def stdDev(self,inputs,mean):
sumsq=0.0
for i in range(len(inputs)):
sumsq += (float(inputs[i])-mean) **2
return math.sqrt(sumsq/len(inputs))
def stats(self):
float_pp = [float(x.wrapped_object()) for x in self if x.wrapped_object()]
max_pp = max(float_pp)
min_pp = min(float_pp)
n_pp = len(float_pp)
sum_pp = sum(float_pp)
mean_pp = sum_pp / n_pp
stddev_pp= self.stdDev(float_pp, mean_pp)
stat_pp =[]
for p in self:
if p.wrapped_object():
p.type = dict
stat_dict = {}
stat_dict['original'] = float(p.wrapped_object())
stat_dict['max'] = max_pp
stat_dict['min'] = min_pp
stat_dict['n'] = n_pp
stat_dict['sum'] = sum_pp
stat_dict['mean'] = mean_pp
stat_dict['stddev'] = stddev_pp
p.set_wrapped_object(stat_dict)
stat_pp.append(p)
return stat_pp
def divide(self, n_split):
'''
splits list into subarrays with n_split members
@param n_split: number of members produced by split
@type n_split: int
@return : new array split up by n_split
@rtype : list<str>
'''
sub_out = []
out = []
n = 0
pyp = Pyp()
inputs = self.pyp.flatten_list(self)
while inputs:
input = inputs.pop(0)
n = n + 1
sub_out.append(input)
if not n % n_split or not inputs:
out.append([sub_out])
sub_out = []
return out
def delimit(self, delimiter):
'''
splits up array based on delimited instead of newlines
@param delimiter: delimiter used for split
@type delimiter: str
@return: new string split by delimiter and joined by ' '
@rtype: list<str>
'''
return ' '.join(self.pyp.flatten_list(self)).split(delimiter)
def oneline(self,delimiter = ' '):
'''
combines list to one line with optional delimeter
@param delimiter: delimiter used for joining to one line
@type delimiter: str
@return: one line output joined by delimiter
@rtype: list<str>
'''
flat_list = self.flatten_list(self)
return delimiter.join(flat_list)
def uniq(self):
'''
returns only unique elements from list
@return: unique items
@rtype: list<str>
'''
strings= self.pyp.flatten_list(self)
return list(set(strings))
#def flatten_list(self, iterables):
# '''
# returns a list of strings from nested lists
# @param iterables: nested lists containing strs or PypStrs
# @type iterables: list
# @return: unnested list of strings
# @rtype: list<str>
# '''
#return self.pyp.flatten_list(iterables)
def flatten_list(self, iterables):
'''
returns a list of strings from nested lists
@param iterables: nested list to flatten
@type iterables: list<str>
'''
out = []
stack=[[iterables,0,len(iterables)]]
while stack:
curIter,pos,limit=stack[0]
if pos==limit:
stack.pop(0)
continue
if type(curIter[pos]) not in [str, PypStr]:
stack[0][1]+=1
stack.insert(0,[curIter[pos],0,len(curIter[pos])])
else:
out.append(curIter[pos])
stack[0][1]+=1
return out
def unlist(self):
'''
splits a list into one element per line
@param self: nested list
@type self: list<str>
@return: unnested list
@rtype: list<str>
'''
return self.pyp.flatten_list(self)
def contains(self,target,input):
if '__contains__' in dir(input):
if target in input:
return True
else:
if target == input:
return True
return False
def after(self, target, after_n=1):
'''
consolidates after_n lines after matching target text to 1 line
@param target: target string to find
@type target: str
@param after_n: number of lines to consolidate
@type after_n: int
@return: list of after_n members
@rtype: list<str>
'''
out = []
n = 0
inputs = self.pyp.flatten_list(self)
for input in inputs:
n = n + 1
if self.contains(target,input):
out.append([ [input] + inputs[n:n + after_n] ])
return out
def before(self, target, before_n=1):
'''
consolidates before_n lines before matching target text to 1 line
@param target: target string to find
@type target: str
@param before_n: number of lines to consolidate
@type before_n: int
@return: list of before_n members
@rtype: list<str>
'''
out = []
n = 0
inputs = self.pyp.flatten_list(self)
for input in inputs:
n = n + 1
if self.contains(target,input):
out.append([ [input] + inputs[n - before_n - 1:n - 1] ])
return out
def matrix(self, target, matrix_n=1):
'''
consolidates matrix_n lines surrounding matching target text to 1 line
@param target: target string to find
@type target: str
@param matrix_n: number of lines to consolidate
@type matrix_n: int
@return: list of matrix_n members
@rtype: list<str>
'''
out = []
n = 0
inputs = self.pyp.flatten_list(self)
for input in inputs:
n = n + 1
if self.contains(target,input):
out.append([ inputs[n - matrix_n - 1:n - 1] + [input] + inputs[n:n + matrix_n] ])
return out
class PypStr(str,PypStrCustom):
'''
defines p string object, allows manipulation of input line by line using python
string methods
'''
def __init__(self, *args):
super(PypStr, self).__init__()
try:
PypStrCustom.__init__(self)
except AttributeError:
pass
try:
self.dir = os.path.split(self.rstrip('/'))[0]
self.file = os.path.split(self)[1]
self.ext = self.split('.')[-1]
p.max = 0
except:
pass
def trim(self,delim='/'):
'''
returns everything but the last directory/file
@param self: directory path
@type self: str
@return: directory path missing without last directory/file
@rtype: PypStr
'''
return PypStr(delim.join(self.split(delim)[0:-1]))
def kill(self, *args):
'''
replaces to_kill with '' in string
@param args: strings to remove
@type args : strs
@return: string without to_kill
@rtype: PypStr
'''
for arg in args:
self = self.replace(arg, '')
return PypStr(self)
def rekill(self, *args):
'''
replace each regex in args found in string with ''
@param args: regexes to remove
@type args: list<regex>
@return: string without the regexes
@rtype: PypStr
'''
for arg in args:
self = re.sub(arg, '', self)
return PypStr(self)
def rereplace(self, regex, replacement):
'''
replace instances of regex in string with replacement
@param regex: the regex to replace
@type regex: str
@param replacement: the value to insert
@type replacement: str
@return: String with all instances replaced
@rtype: PypStr
'''
self = re.sub(regex, replacement, self)
return PypStr(self)
def refindall(self, to_match):
'''
returns a list of all matches of to_match in the string
@param to_match: the regex to match
@type to_match: str
@return: a list of all matches
@rtype: PypList
'''
return PypList(re.findall(to_match, self))
def letters(self):
'''
returns only letters
@return: list of strings with only letters
@rtype: PypList
'''
new_string=''
for letter in list(self):
if letter.isalpha():
new_string = new_string + letter
else:
new_string = new_string + ' '
return [PypStr(x) for x in new_string.split() if x]
def punctuation(self):
'''
returns only punctuation
@return: list of strings with only punctuation
@rtype: PypList
'''
new_string=''
for letter in list(self):
if letter in """!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~""":
new_string = new_string + letter
else:
new_string = new_string + ' '
return [PypStr(x) for x in new_string.split() if x]
def digits(self):
'''
returns only digits
@return: list of string with only digits
@rtype: PypList
'''
new_string=''
for letter in list(self):
if letter.isdigit():
new_string = new_string + letter
else:
new_string = new_string + ' '
return [PypStr(x) for x in new_string.split() if x]
def clean(self,delim = '_'):
'''
returns a metacharater sanitized version of input. ignores underscores and slashes and dots.
@return: string with delim (default '_') replacing bad metacharacters
@rtype: PypStr
@param delim: delimeter to rejoin cleaned string with. default is "_"
@type delime: str
'''
for char in self:
if not char.isalnum() and char not in ['/','.',delim]:
self = self.replace(char, ' ')
return PypStr(delim.join([x for x in self.split() if x.strip()]))
def re(self,to_match,group=0):
'''
returns characters that match a regex using to_match
@return: portion of string that matches regex
@rtype: PypStr
@param to_match: regex used for matching
@type to_match: str
'''
match = re.search(to_match,self)
if match:
return PypStr(match.group(group))
else:
return ''
class PypList(list,PypListCustom):
'''
defines p list object, allows manipulation of input line by line using python
list methods
'''
def __init__(self, *args):
super(PypList, self).__init__(*args)
try:
PypListCustom.__init__(self)
except AttributeError:
pass
class Pyp(object):
'''
pyp engine. manipulates input stream using python methods
@ivar history: master record of all manipulations
@type history: dict<int:dict>
@ivar pwd: current directory
@type pwd: str
@ivar p: current input line being manipulated
@type p: str or list
@ivar n: current input line number
@type n: int
'''
def __init__(self):
self.history = {} #dictionary of all data organized input line by input line
try: #occasionally, python loses pwd info
self.pwd = os.getcwd()
except:
self.pwd =''
def get_custom_execute(self):
'''returns customized paths to macro files if they are setup'''
custom_ob = PypCustom()
custom_attrs = dir(custom_ob)
if 'custom_execute' in custom_attrs and custom_ob.custom_execute:
final_execute = custom_ob.custom_execute
else:
final_execute = self.default_final_execute
return final_execute
def default_final_execute(self,cmds,null):
'''
defines execute command
@param cmds: list
@param null: str
'''
for cmd in cmds:
os.system(cmd)
def get_custom_macro_paths(self):
'''returns customized paths to macro files if they are setup'''
home = os.path.expanduser('~')
custom_ob = PypCustom()
custom_attrs = dir(custom_ob)
if 'user_macro_path' in custom_attrs:
user_macro_path = custom_ob.user_macro_path
else:
user_macro_path = home + '/pyp_user_macros.json'
if 'group_macro_path' in custom_attrs:
group_macro_path = custom_ob.group_macro_path
else:
group_macro_path = home + '/pyp_group_macros.json'
return user_macro_path,group_macro_path
def cmds_split(self, cmds, macros):
'''
splits total commmand array based on pipes taking into account quotes,
parantheses and escapes. returns array of commands that will be processed procedurally.
Substitutes macros without executable commands.
@param cmds: user supplied command set
@type cmds: list<str>
@param macros: user defined marcros
@type macros: dict<str:dict>
@return: list of commands to be evaluated
@rtype: list<str>
'''
cmds = cmds.strip('|')
cmd_array = []
cmd = ''
open_single = False
open_double = False
open_parenth = 0
escape = False
letters = list(cmds)
while letters:
letter = letters.pop(0)
if cmd and cmd[-1] == '\\': escape = True
#COUNTS QUOTES
if letter == "'":
if open_single and not escape:
open_single = not open_single
else:
open_single = True
if letter == '"':
if open_double and not escape:
open_double = not open_double
else:
open_double = True
#COUNTS REAL PARANTHESES
if not open_single and not open_double:
if letter == '(' :
open_parenth = open_parenth + 1
if letter == ')':
open_parenth = open_parenth - 1
#MONEY MOVE--substitutes command for macro or starts building new command after adding command to cmd_array
if cmd.strip() in macros and letter in ['|', '[', '%', ',', '+', ' ']:
cmd = cmd.strip()
letters = list('|'.join(macros[cmd]['command']) + letter + ''.join(letters))
cmd = ''
elif letter == '|' and not open_single and not open_double and not open_parenth:#
cmd_array.append(cmd)
cmd = ''
else:
cmd = cmd + letter
escape = False
#for last command, either recursively run cmd_split or add last command to array
if cmd.strip() in macros and not options.macro_save_name: #allows macro be split and also to be correctly overwritten
return self.cmds_split('|'.join(cmd_array + macros[cmd]['command']), macros) #this is by definition the last cmd.
else:
cmd_array.append(cmd) #gets last cmd
return [x for x in cmd_array if x.strip()] #gets rid of extra spaces and nulls
def load_macros(self,macro_path):
'''
loads macro file; returns macros dict
@param macro_path: file path to macro file
@type macro_path: str
@return: dictionary of user defined macros
@rtype: dict<str:dict>
'''
#macro_path = self.macro_path
if os.path.exists(macro_path):
macro_ob = open(macro_path)
macros = json.load(macro_ob)
macro_ob.close()
else:
macros = {}
for macro in macros: #unicode sucks
macros[macro][u'command'] = [str(x) for x in macros[macro][u'command'] ]
return macros
def write_macros(self, macros,macro_path, cmds):
'''
writes macro file
@param macros: dictionary of user defined macros
@type macros: dict<str:dict>
@param macro_path: file path to macro file
@type macro_path: str
@param cmds: commands to be saved as a macro
@type cmds: list<str>
'''
if options.macro_save_name:
macro = options.macro_save_name
macro_name = macro.split('#')[0].strip()
macros[macro_name] = {}
macros[macro_name]['command'] = cmds
macros[macro_name]['user'] = getpass.getuser()
macros[macro_name]['date'] =str(datetime.datetime.now()).split('.')[0]
if '#' in macro: #deals with comments
macros[macro_name]['comments'] = '#' + macro.split('#')[1].strip()
else:
macros[macro_name]['comments'] = ''
macro_ob = open(macro_path, 'w')
json.dump(macros, macro_ob)
macro_ob.close()
self.load_macros(macro_path)
if macro_name in macros:
print Colors.YELLOW + macro_name , "successfully saved!" + Colors.OFF
sys.exit()
else:
print Colors.RED + macro_name, 'was not saved...unknown error!' + Colors.OFF
sys.exit(1)
def delete_macros(self, macros,macro_path):
'''
deletes macro from file
@param macros: dictionary of user defined macros
@type macros: dict<str:dict>
@param macro_path: file path to macro file
@type macro_path: str
'''
if options.macro_delete_name:
if options.macro_delete_name in macros:
del macros[options.macro_delete_name]
json_ob = open(macro_path, 'w')
json.dump(macros, json_ob)
json_ob.close()
print Colors.MAGENTA + options.macro_delete_name + " macro has been successfully obliterated" + Colors.OFF
sys.exit()
else:
print Colors.RED + options.macro_delete_name + " does not exist" + Colors.OFF
sys.exit(1)
def list_macros(self, macros):
'''
prints out formated macros, takes dictionary macros as input
@param macros: dictionary of user defined macros
@type macros: dict<str:dict>
'''
if options.macro_list or options.macro_find_name:
macros_sorted = [x for x in macros]
macros_sorted.sort()
for macro_name in macros_sorted:
if options.macro_list or options.macro_find_name in macro_name or options.macro_find_name in macros[macro_name]['user']:
print Colors.MAGENTA + macro_name + '\n\t ' + Colors.YELLOW+macros[macro_name]['user'] \
+ '\t' + macros[macro_name]['date']\
+'\n\t\t' + Colors.OFF + '"'\
+ '|'.join(macros[macro_name]['command']) + '"' + Colors.GREEN + '\n\t\t'\
+ macros[macro_name].get('comments', '') + Colors.OFF + '\n'
sys.exit()
def load_file(self):
'''
loads file for pyp processing
@return: file data
@rtype: list<str>
'''
if options.text_file:
if not os.path.exists(options.text_file):
print Colors.RED + options.text_file + " does not exist" + Colors.OFF
sys.exit()
else:
f = [x.rstrip() for x in open(options.text_file) ]
return f
else:
return []
def shell(self, command):
'''
executes a shell commands, returns output in array sh
@param command: shell command to be evaluated
@type command: str
@return: output of shell command
@rtype: list<str>
'''
sh = [x.strip() for x in os.popen(command).readlines()]
return sh
def shelld(self, command, *args):
'''
executes a shell commands, returns output in dictionary based on args
@param command: shell command to be evaluated
@type command: str
@param args: optional delimiter. default is ":".
@type args: list
@return: hashed output of shell command based on delimiter
@rtype: dict<str:str>
'''
if not args:
ofs = ':'
else:
ofs = args[0]
shd = {}
for line in [x.strip() for x in os.popen(command).readlines()]:
try:
key = line.split(ofs)[0]
value = ofs.join(line.split(ofs)[1:])
shd[key] = value
except IndexError:
pass
return shd
def rekeep(self,to_match):
'''
keeps lines based on regex string matches
@param to_match: regex
@type to_match: str
@return: True if any of the strings match regex else False
@rtype: bool
'''
match = []
flat_p = self.flatten_list(self.p)
for item in flat_p:
if re.search(to_match,item):
match.append(item)
if match:
return True
else:
return False
def relose(self,to_match):
'''
loses lines based on regex string matches
@param to_match: regex
@type to_match: str
@return: False if any of the strings match regex else True
@rtype: bool
'''
return not self.rekeep(to_match)
def keep(self,*args):
'''
keeps lines based on string matches
@param args: strings to search for
@type args: list<str>
@return: True if any of the strings are found else False
@rtype: bool
'''
kept = []
for arg in args:
flat_p = self.flatten_list(self.p)
for item in flat_p:
if arg in item:
kept.append(arg)
if kept:
return True
else:
return False
def lose(self,*args):
'''
removes lines based on string matches
@param args: strings to search for
@type args: list<str>
@return: True if any of the strings are not found else False
@rtype: bool
'''
return not self.keep(*args)
def array_tracer(self,input,analysis_mode,power_pipe=''):
'''
generates colored, numbered output for lists and dictionaries and other types
@param input: one line of input from evaluted pyp command
@type input: any
@param power_pipe: Output from powerpipe (pp) evaluation
@type power_pipe: bool
@return: colored output based on input contents
@rtype: str
'''
if not input and input not in [0,0.0]: #TRANSLATE FALSES TO EMPTY STRINGS OR ARRAYS. SUPPLIES DUMMY INPUT TO KEEP LINES IF NEEDED.
if options.keep_false or power_pipe:
input = ' '
else:
return ''
#BASIC VARIABLES
nf = 0
output = ''
if power_pipe:#labels line number of powerpipes
n_index = Colors.MAGENTA + '[%s]' % (self.n) + Colors.GREEN
final_color = Colors.OFF
else: #for line by line
n_index = ''
final_color=''
#DEALS WITH DIFFERENT TYPES OF INPUTS
input_type = type(input)
if input_type in [ list, PypList, PowerPipeList] :#deals with lists
for field in input:
if not nf == len(input):
if type(field) in [str, PypStr]:
COLOR = Colors.GREEN
else:
COLOR = Colors.MAGENTA
output = str(output) + Colors.BOLD + Colors.BLUE + "[%s]" % nf + Colors.OFF + COLOR + str(field) + Colors.GREEN
nf = nf + 1
final_output = n_index + Colors.GREEN + Colors.BOLD + '[' + Colors.OFF + output + Colors.GREEN + Colors.BOLD + ']' + Colors.OFF
elif input_type in [str, PypStr] : #clean output for non-pp operations. this should have no color
if analysis_mode: #put colors into output only if it's in analysis mode.
n_index = Colors.GREEN
final_color = Colors.OFF
final_output = n_index + str(input) + final_color
elif input_type in [int, float] :
final_output = n_index + Colors.YELLOW + str(input) + Colors.OFF #had to comppromise here to keep string output clean.
elif input_type is dict: #deals with dictionaries
for field in sorted(input,key=lambda x : x):
output = output + Colors.OFF + Colors.BOLD + Colors.BLUE + str(field) + Colors.GREEN + ": " + Colors.OFF + Colors.GREEN + str(input[field]) + Colors.BOLD + Colors.GREEN + ',\n '
final_output = n_index + Colors.GREEN + Colors.BOLD + '{' + output.strip().strip(' ,') + Colors.GREEN + Colors.BOLD + '}' + Colors.OFF
else: #catches every else
final_output = n_index + Colors.MAGENTA + str(input) + Colors.OFF
return final_output
def cmd_split(self, cmds):
'''
takes a command (as previously split up by pipes and input as array cmds),
and returns individual terms (cmd_array) that will be evaluated individually.
Also returns a string_format string that will be used to stitch together
the output with the proper spacing based on the presence of "+" and ","
@param cmds: individual commands separated by pipes
@type cmds: list<str>
@return: individual commands with corresponding string format
@rtype: list<str>
'''
string_format = '%s'
cmd_array = []
cmd = ''
open_quote = False
open_parenth = 0
open_bracket = 0
for letter in cmds:
if letter in [ "'" , '"']:
if cmd and cmd[-1] == '\\':
open_quote = True
else:
open_quote = not open_quote
if not open_quote: #this all ignores text in () or [] from being split by by , or +
if letter == '(' :
open_parenth = open_parenth + 1
elif letter == ')':
open_parenth = open_parenth - 1
elif letter == '[' :
open_bracket = open_bracket + 1
elif letter == ']':
open_bracket = open_bracket - 1
if not open_parenth and not open_bracket and letter in [',', '+']: #these are actual formatting characters
cmd_array.append(cmd)
cmd = ''
string_format = string_format + letter.replace('+', '%s').replace(',', ' %s')
continue
cmd = cmd + letter
cmd_array.append(cmd)
output = [(cmd_array, string_format)]
return output
def all_meta_split(self, input_str):
'''
splits a string on any metacharacter
@param input_str: input string
@type input_str: str
@return: list with no metacharacters
@rtype: list<str>
'''
for char in input_str:
if not char.isalnum():
input_str = input_str.replace(char, ' ')
return [x for x in input_str.split() if x.strip()]
def string_splitter(self):
'''
splits self.p based on common metacharacters. returns a
dictionary of this information.
@return: input split up by common metacharacters
@rtype: dict<str:list<str>>
'''
whitespace =self.p.split(None)
slash =self.p.split('/')
underscore =self.p.split('_')
colon =self.p.split(':')
dot =self.p.split('.')
minus =self.p.split('-')
all= self.all_meta_split(self.p)
comma = self.p.split(',')
tab = self.p.split('\t')
backslash = self.p.split('\\')
split_variables_raw = {
'whitespace' :whitespace,
'slash' :slash,
'underscore' :underscore,
'colon' :colon,
'dot' :dot,
'minus' :minus,
'all' : all,
'comma' : comma,
'tab': tab,
'backslash': backslash,
'w' :whitespace,
's' :slash,
'u' :underscore,
'c' :colon,
'd' :dot,
'm' :minus,
'a' : all,
'mm' : comma,
't': tab,
'b': backslash,
}
#gets rid of empty fields
split_variables = dict((x, PypList([PypStr(y) for y in split_variables_raw[x]])) for x in split_variables_raw)
return split_variables
def join_and_format(self, join_type):
'''
joins self.p arrays with a specified metacharacter
@param join_type: metacharacter to join array
@type join_type: str
@return: string joined by metacharacter
@rtype: str
'''
temp_joins = []
derived_string_format = self.history[self.n]['string_format'][-1]
len_derived_str_format = len(derived_string_format.strip('%').split('%'))
if len(self.p) == len_derived_str_format:
string_format = derived_string_format #normal output
for sub_p in self.p:
if type(sub_p) in [list, PypList]:
temp_joins.append(join_type.join(sub_p))
else: #deals with printing lists and strings
temp_joins.append(sub_p)
return PypStr(string_format % tuple(temp_joins))
else: #deals with piping pure arrays to p
return PypStr(join_type.join(PypStr(x)for x in self.p))
def array_joiner(self):
'''
generates a dict of self.p arrays joined with various common metacharacters
@return: input joined by common metacharacters
@rtype: dict<str:str>
'''
whitespace = self.join_and_format(' ')
slash = self.join_and_format(os.sep)
underscore = self.join_and_format('_')
colon = self.join_and_format(':')
dot = self.join_and_format('.')
minus = self.join_and_format('-')
all = self.join_and_format(' ')
comma = self.join_and_format(',')
tab = self.join_and_format('\t')
backslash = self.join_and_format('\\')
join_variables = {
'w' : whitespace,
's' : slash,
'u' : underscore,
'c' : colon,
'd' : dot,
'm' : minus,
'a' : all,
'mm' : comma,
't': tab,
'b':backslash,
'whitespace' : whitespace,
'slash' : slash,
'underscore' : underscore,
'colon' : colon,
'dot' : dot,
'minus' : minus,
'all' : all,
'comma' : comma,
'tab': tab,
'backslash' : backslash,
}
return join_variables
def generic_variables(self):
'''
generates a dict of self.p arrays joined with various common metacharacters
@return: input joined by common metacharacters
@rtype: dict<str:str>
'''
string_input = str(self.p)
whitespace = string_input
slash =string_input
underscore = string_input
colon = string_input
dot = string_input
minus =string_input
all = string_input
comma = string_input
tab = string_input
backslash = string_input
generic_variables = {
'w' : whitespace,
's' : slash,
'u' : underscore,
'c' : colon,
'd' : dot,
'm' : minus,
'a' : all,
'mm' : comma,
't': tab,
'b':backslash,
'whitespace' : whitespace,
'slash' : slash,
'underscore' : underscore,
'colon' : colon,
'dot' : dot,
'minus' : minus,
'all' : all,
'comma' : comma,
'tab': tab,
'backslash' : backslash,
}
return generic_variables
def translate_preset_variables(self, translate_preset_variables,file_input, second_stream_input):
'''
translates variables to protected namespace dictionary for feeding into eval command.
@param file_input: data from file
@type file_input: list
@param second_stream_input: input from second stream
@type second_stream_input: list<str>
@return: values of preset variable for direct use by users
@rtype: dict<str:str>
'''
#generic variables
presets = {
'n' : self.kept_n,
'on' : self.n,
'fpp' : file_input,
'spp' : second_stream_input,
'nk': 1000 + self.kept_n,
'shell': self.shell,
'shelld' : self.shelld,
'keep': self.keep,
'lose': self.lose,
'k': self.keep,
'l':self.lose,
'rekeep':self.rekeep,
'relose':self.relose,
'rek':self.rekeep,
'rel':self.relose,
'quote': '"',
'apost':"'",
'qu':'"',
'dollar': '$',
'pwd': self.pwd,
'date': datetime.datetime.now(),
'math':math,
'env': os.environ.get,
'glob' : glob.glob,
'letters': 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ',
'digits': '0123456789',
'punctuation': """!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~""",
'str':(PypStr)
}
#removes nested entries from history
history = []
for hist in self.history[self.n]['history']:
if type(hist) in (list,PypList):
hist = self.unlist_p(hist)
history.append(hist)
presets['history'] = presets['h'] = history
# file
if options.text_file:
try:
fp = file_input[self.kept_n]
except IndexError:
fp = ''
presets['fp'] = fp
# second stream
try:
sp = second_stream_input[self.kept_n]
except IndexError:
sp = ''
presets['sp'] = sp
#original input
if self.history[self.n]['output']:
presets['o'] = self.history[self.n]['history'][0]
else:
presets['o'] = ''
presets['original'] = presets['o']
# p cleanup
p = self.p
if type(p) in [str]:
presets['p'] = PypStr(p)
elif type(p) in [list]:
presets['p'] = PypList(p)
else:
presets['p'] = p
#custom functions
presets.update(PypFunctionCustom.__dict__) #adds user defined functions
return presets
def blank_history(self):
'''
initializes history dict for a particular n,
where n is the line of the input being processed
'''
history= {} #creates dict
history['error'] = '' # error data
history['history'] = [] #
#history['history'].append(self.p) # records current p
history['string_format'] = [] #used for formating output
history['original_splits'] = {}#dict of original splits
history['output'] = True
return history
def safe_eval(self, cmd, variables):
'''
evaluates a str command (cmd) safely. takes a dictionary of protected
namespace variables as input.returns output of python call, which can
be any type of python data type (typically str or array though).
@param cmd: command to be evaluated using python
@type cmd: str
@param variables: preset variables used for evaluation
@type variables: dictionary
@return: output from python evaluation
@rtype: list<str>
'''
if not self.history[self.n]['error'] and self.history[self.n]['output'] is not False: #if no errors, go forward
total_output = []
for cm_tuple in self.cmd_split(cmd):#cm_tuple consists of commands and string format.cmd_split splits each command into terms.
string_format = cm_tuple[1] #how the results will eventually be formatted.
for cm in cm_tuple[0]:#cm is the expression seperated by a + or a ,
#evaluate cm and add to dictionary catching any error.
try:
output = eval(cm, variables) #500 lines of code wrap this line!!!
except KeyboardInterrupt:
print Colors.RED + "killed by user" + Colors.OFF
sys.exit()
except IndexError: #ignores index errors like all other shell commands
self.history[self.n]['string_format'].append('%s')
return [''] # this is total_output.
except Exception, err:
self.history[self.n]['error'] = Colors.RED + 'error: ' + str(err) + Colors.OFF, Colors.RED + cmd + Colors.OFF
self.history[self.n]['string_format'].append('%s')#adds default string format if error
return ['']
break
#totals output for each cm
try:
if output is True : #allows truth tests
output = self.p
except:
pass
total_output.append(output)
self.history[self.n]['string_format'].append(string_format)
return total_output
def get_user_input(self, total_output,second_stream_input,file_input, power_pipe):
'''
figures out what to show user in terms of powerpipe output. does NOT update history dictionary.
@param total_output: line output from eval
@type total_output: list<string>
@param second_stream_input: entire input from second string
@type second_stream_input: list<string>
@param file_input: entire input from file
@type file_input: list<string>
@param power_pipe: kind of power pipe
@type power_pipe: string
@return: output for display
@rtype: list<str>
'''
try: #who knows what could happen with user input
n = self.n
if power_pipe == 'pp' and total_output or not power_pipe: #standard input
user_output = total_output
elif power_pipe == 'spp' and second_stream_input:
user_output = [second_stream_input[n]]
elif power_pipe == 'fpp' and file_input:
user_output = [file_input[n]]
elif power_pipe: # power pipe variable is referenced, but does not exist.
print Colors.RED + "YOU'RE LIST VARIABLE DOES NOT EXIST: " + Colors.GREEN + power_pipe + Colors.OFF
sys.exit()
except: #default output is null per line
user_output =['']
return user_output
def update_history(self, total_output,second_stream_input,file_input, power_pipe):
'''
updates history dictionary with output from python evaluation
@param total_output: line output from eval
@type total_output: list<string>
@param second_stream_input: entire input from second string
@type second_stream_input: list<string>
@param file_input: entire input from file
@type file_input: list<string>
@param power_pipe: kind of power pipe
@type power_pipe: string
'''
#marks null output as False EXCEPT when output is zero, powerpipe. Null output is not printed out.
if (total_output in [False]\
or [x for x in self.flatten_list(total_output) if x is False ] == total_output )\
and not power_pipe:
#make irrelevent data false
self.history[self.n]['history'].append(False)
self.history[self.n]['output']=False
else: # good output
string_format = self.history[self.n]['string_format'][-1]
output_array = []
history_array = []
contains_list = False
#actual output is p or pp unless spp is invoked.
user_input = self.get_user_input(total_output, second_stream_input, file_input, power_pipe)
#update history array
contains_list = False
for out in total_output: # forms an array called_output array of strings or array_traced strings
history_array.append(out) # for feeding back to pipe
if type(out) in [list, PypList]:
contains_list = True
contains_number = True if [x for x in total_output if type(x) in [int,float]] == total_output else False
contains_dict = True if [x for x in total_output if type(x) in [dict]] == total_output else False
#toggle analysis mode if not all input is strings
if [x for x in total_output if type(x) in [str,PypStr]] == total_output:
analysis_mode = False
else:
analysis_mode = True
#update actual output
for out in user_input:
traced_output = self.array_tracer(out,analysis_mode, power_pipe)
output_array.append(traced_output) # for output
self.history[self.n]['output'] = string_format % (tuple(output_array))
if contains_list or contains_number or contains_dict:# or format_mismatch: #this section prevents buildup of recursive lists.
self.history[self.n]['history'].append(total_output) # just adds list to total output if list
else:
self.history[self.n]['history'].append(string_format % (tuple(history_array))) # adds properly formatted string if string.
def flatten_list(self, iterables):
'''
returns a list of strings from nested lists
@param iterables: nested list to flatten
@type iterables: list<str>
'''
out = []
if '__iter__' in dir(iterables) or type(iterables) in [list, PowerPipeList,tuple,PypList]:
#expand history objects
if [x for x in iterables if type(x) in [HistoryObject]]:
expanded_iterables = []
for iterable in iterables:
if type(iterable) in [HistoryObject]:
iterable = iterable.wrapped_object()
expanded_iterables.append(iterable)
iterables = expanded_iterables
#if [x for x in iterables if type(x) in [str, PypStr,HistoryObject,type,int,float]]:
if [x for x in iterables if type(x) not in [list,PowerPipeList,tuple,PypList]]: #str,int,etc
out = out + iterables #add the lists and be done
else:
for x in iterables:
out = out + self.flatten_list(x)
else: #catches non iterables
out = [iterables] #non-iterables
return out
def stamp_history(self,power_pipe_inputs, new_inputs):
'''
makes new object stamped with all history info
@param power_pipe_inputs: PowerPipeList
@param new_inputs: Booleon
'''
history_inputs= []
input_index = 0
for input in power_pipe_inputs:
input_type = type(input)
input_copy = input
input = HistoryObject(input)
if input_index in self.history and self.history[input_index]['output'] is False: #ignore false
input_index = input_index + 1
continue
elif not new_inputs and input_index in self.history: #stamps inputs already in history
input.history = self.history[input_index] #get from history dict
else:
input.history = self.blank_history() #new input. make fresh entry
input.history['history'] = [input_copy]
input.history['string_format'] = ['%s']
input.type = input_type
history_inputs.append(input)
input_index = input_index + 1
return PowerPipeList(history_inputs)
def power_pipe_sum(self, ints):
'''
overloaded sum operator. ignores non-digit strings. converts everything else to ints or floats
@param ints: varies
'''
new_ints = []
for line in ints:
if 'history' in dir(line):
line = line.wrapped_object()
if type(line) in [int,float]:
new_ints.append(line)
elif type(line) in [str, PypStr]:
if line.isdigit():
new_ints.append(int(line))
elif line.replace('.','').isdigit():
new_ints.append(float(line))
return sum(new_ints)
def power_pipe_eval(self, cmd, inputs, second_stream_input, file_input, power_pipe_type):
'''
evaluates pp statement. returns sanitized result.
@param cmd: power pipe command
@type cmd: str
@param inputs: inputs from std-in or previous python eval
@type inputs: list<str>
@param power_pipe_type: kind of powerpipe
@type power_pipe_type: str
@return: 'p' and output of python evaluation
@rtype: list<str>
'''
variables = {}
padded_output = []
variables['str'] = PypStr #useful for list comps
inputs = self.flatten_list(inputs)
variables['pp'] = self.stamp_history(inputs, False)
variables['spp'] = self.stamp_history(second_stream_input, True)
variables['fpp'] = self.stamp_history(file_input, True)
variables['sum'] = self.power_pipe_sum
variables['math'] = math
try:
output = eval(cmd, variables) #1000 lines of code wrap this line!!!
except KeyboardInterrupt:
print Colors.RED + "killed by user" + Colors.OFF
sys.exit()
except Exception, err:
print Colors.RED + 'error: ' + str(err) + Colors.OFF, Colors.RED + cmd + Colors.OFF
sys.exit()
if output is None: #allows use of inplace methods like sort
output = variables[power_pipe_type]
if type(output) in [int, float]: #keeps output in array
output = [output]
if type(output) in [HistoryObject]: #makes sure output is in list of lists
output = [output]
if type(output) in [str, PypStr,tuple,type]: #makes sure output is in list of lists
output = [[output]]
if [x for x in output if type(x) in [tuple]]:#changes tuples to lists
output = [PypList(x) for x in output if type(x) in [tuple]]
history_output = self.restore_history(output)
if len(history_output) == 1: #turn off powerpipe if output is single item
power_pipe_type = ''
return history_output, power_pipe_type
def restore_history(self, output):
'''
restores history dictionary to reflect changes. recasts all objects to their original form.
'''
self.history = {}
# try to preserve history...if this fails, we go with zero history
output_index = 0
history_output = []
for out in output:
if 'history' in dir(out):
history = out.history
out = self.recursive_recast(out) #recast back
else: #non stamped and deeply stamped both need new entries
out = self.recursive_recast(out) #recast right away
history = self.blank_history() #new input. make fresh entry
history['history'] = [self.unlist_p(out)]
history['string_format'] = ['%s']
history_output.append(out)
self.history[output_index] = history
output_index = output_index + 1
return history_output
def recursive_recast(self, out):
'''
takes nested list. recasts all objects to their original type if they are stamped
@param out: varies
'''
try:
if 'type' in dir(out): #its stamped
return out.type(out)
elif type(out) in [list,PowerPipeList]: #try to return list
return [self.recursive_recast(x) for x in out]
elif type(out) in [tuple]:
return ' '.join(out) #user is using commas to join items with spaces
else: #for everything else.
return out
except:
return out #who knows what people will try.
def detect_power_pipe(self, command, power_pipe_type):
'''
detects presense of powerpipe
@param command: command to be evaluated
@type command: str
@param power_pipe_type: kind of powerpipe (future use)
@type power_pipe_type: str
@return: True if powerpipe else False
@rtype: bool
'''
open_quote = False
cmd_raw = list(command)
cmd = []
for letter in cmd_raw:
if letter not in ['"', "'"] and not letter.isalnum():
letter = ' '
cmd.append(letter)
cmds = ''.join(cmd).split()
for cmd in cmds:
cmd = list(cmd)
test_cmd = ''
while cmd:
letter = cmd.pop(0)
test_cmd = test_cmd + letter
if not open_quote:
if power_pipe_type == test_cmd and not cmd:
return True
if letter in [ "'" , '"']:
if cmd and cmd[0] == '\\':
open_quote = True
else:
open_quote = not open_quote
return False
def format_input(self, cmd, input_set, second_stream_input, file_input):
'''
checks for powerpipe presence, evaluates powerpipe pp and returns
formatted output if detected
@param cmd: user command
@type cmd: str
@param input_set: input from std-in or previous python evaluation
@type input_set: list<str>
@return: command, input set, presence of powerpipe
@rtype: list<str>
'''
#POWER PIPES
power_pipe = '' #power pipe is off by default
if self.detect_power_pipe(cmd, 'pp') :
input_set,power_pipe = self.power_pipe_eval( cmd, input_set, second_stream_input, file_input,'pp')
cmd = 'p'
elif self.detect_power_pipe(cmd, 'spp') :
second_stream_input, power_pipe = self.power_pipe_eval( cmd, input_set, second_stream_input, file_input,'spp')
cmd = 'p'
elif self.detect_power_pipe(cmd, 'fpp'):
file_input, power_pipe = self.power_pipe_eval( cmd, input_set, second_stream_input, file_input,'fpp')
cmd = 'p'
return cmd, input_set,second_stream_input, file_input, power_pipe
def unlist_p(self, p):
'''
changes one item arrays to strings for input cleanup
@param p: input from std-in or previous pyp evaluation
@type p: list
@return: will return a string if input is a list and has one member
@rtype: list<str>,str
'''
if type(p) in [list, PypList] and len(p) == 1:
p = p[0]
return p
def process(self, inputs, file_input, cmds, second_stream_input, process_as_list):
'''
takes primary data from input stream (can be string, array or dictionary), applies user commands to it,
captures this output. Also, generates several variables such as line counter and
various string split and join variables. Outputs string, array, or dictionary in
a format deliniated by the string formating stamp
@param inputs: inputs from std-in or previous pyp eval
@type inputs: str,list
@param file_input: inputs from file
@type file_input: list
@param cmds: python commands to be evaluated
@type cmds: list<str>
@param second_stream_input: second stream input
@type second_stream_input: list<str>
'''
while cmds: #cmds are commands that will be executed on the input stream
if process_as_list: #non powerpipe runs are handled remotely
self.kept_n = 0 # counter of kept lines. needs to be avail for eval, so starts as 0
self.n = -1 # overall line counter. will change to 0 asap.
cmd = cmds.pop(0)
cmd, input_set,second_stream_input, file_input, power_pipe = self.format_input(cmd, inputs,second_stream_input, file_input)
original_input_set = input_set[:]
while input_set:
self.process_line(cmd,input_set, original_input_set,second_stream_input,file_input ,power_pipe)
if process_as_list and self.history[self.n]['output'] != False: #increments line n
self.kept_n = self.kept_n + 1 #only update if output is kept
new_input = [self.history[x]['history'][-1] for x in self.history ] # takes last output as new input
self.process(new_input, file_input, cmds, second_stream_input,process_as_list) #process new input
def process_line(self,cmd, input_set,original_input_set, second_stream_input,file_input ,power_pipe):
'''
processes individual cmds per line. updates history and counters
@param inputs: inputs from std-in or previous pyp eval
@type inputs: str,list
@param file_input: inputs from file
@type file_input: list
@param cmds: python commands to be evaluated
@type cmds: list<str>
@param second_stream_input: second stream input
@type second_stream_input: list<str>
'''
self.p = self.unlist_p(input_set.pop(0)) # p is main line variable being manipulated
self.n = self.n + 1 # raises counters
variables = {}
if self.p is False: #skip false output but n is updated
return
if not self.n in self.history: # initializes self.history dict for line. always for quick out.
self.history[self.n] = self.blank_history()
self.history[self.n]['history'].append(self.p)
if options.quick: #bypass split join variables
variables={}
elif type(self.p) in [ str, PypStr]: # p is string
variables = self.string_splitter()
if not self.history[self.n]['original_splits']: #makes variables dealing with original input
self.history[self.n]['original_splits'] = dict(('o' + x, variables[x]) for x in variables)
if not self.history[self.n]['output']: #kills o variables if there is no output
self.history[self.n]['original_splits'] = dict(('o' + x, '') for x in variables)
elif type(self.p) in [list, PypList] and not power_pipe: # p is list of lists, constructs various joins
try: #for going from list to powerpipe
variables = self.array_joiner()
except:
pass
else:
variables = self.generic_variables()
variables.update(self.translate_preset_variables(original_input_set,file_input, second_stream_input)) #add incrementals
variables.update(self.history[self.n]['original_splits']) # updates with original splits
total_output = self.safe_eval(cmd, variables)
self.update_history(total_output,second_stream_input,file_input ,power_pipe)
def output(self, total_cmds):
'''
generates final output.
@param total_cmds: all commands executed
@type total_cmds: list<str>
'''
execute_cmds = []
#print self.history
for self.history_index in self.history:
error = self.history[self.history_index]['error']
if not error : #no error
cmd = self.history[self.history_index]['output'] #color formated output
#print cmd
#if 1: ########################TESTING
if cmd != False: #kept commands
if options.execute or options.execute_aux: #executes command
execute_cmds.append(cmd)
elif options.ignore_blanks and not cmd.strip():
pass
else:
print cmd # normal output
elif options.keep_false: #prints blank lines for lost False commands
print
else: #error
print Colors.RED + self.history[self.history_index]['error'][0] + Colors.RED + ' : ' + self.history[self.history_index]['error'][1] + Colors.OFF
if execute_cmds:
if not options.execute_aux:
threads = 10
else:
threads = options.execute_aux
self.final_execute(execute_cmds, threads)
def initilize_input(self):
'''
decides what type of input to use (all arrays. can be from rerun file, yaml, or st-in.
also does some basic processing, for using different delimeters or looking for jts numbers
@return: starting input for pyp processing
@rtype: list
'''
if options.manual:
print Docs.manual()
sys.exit()
if options.unmodified_config:
print Docs.unmodified_config
sys.exit()
rerun_path = '%s/pyp_rerun_%d.txt' %(tempfile.gettempdir(),os.getppid())
if options.rerun: #deals with rerunning script with -r flag
if not os.path.exists(rerun_path):
gpid = int(os.popen("ps -p %d -oppid=" % os.getppid()).read().strip())
rerun_gpid_path = '%s/pyp_rerun_%d.txt' %(tempfile.gettempdir() ,gpid)
if os.path.exists(rerun_gpid_path):
rerun_path = rerun_gpid_path
else:
print Colors.RED + rerun_path + " does not exist" + Colors.OFF
sys.exit()
pipe_input = open(rerun_path)
elif options.blank_inputs:
pipe_input = []
end_n = int(options.blank_inputs)
for n in range(0,end_n):
pipe_input.append('')
elif options.no_input:
pipe_input = ['']
else:
pipe_input = sys.stdin
if not pipe_input:
pipe_input = [''] #for using control d to activate comands with no input
return pipe_input #is iterable file object or list
def input_filter(self,line):
if options.ignore_blanks:
if line.strip():
return line.strip()
else:
return False
else:
return self.strip_last_newline(line)
def strip_last_newline(self, line):
return line[::-1].replace('\n','',1)[::-1] #strips trailing newlines
def write_rerun(self, pipe_input):
if not options.rerun:
rerun_path = '%s/pyp_rerun_%d.txt' %(tempfile.gettempdir(),os.getppid())
rerun_file = open(rerun_path, 'w')
rerun_file.write('\n'.join([str(x) for x in pipe_input]))
rerun_file.close()
def process_master_switch(self,inputs, file_input, cmds, second_stream_input):
'''
switches between line by line and list operation based on presence of pp, spp, fpp
@param inputs:
@param file_input:
@param cmds:
@param second_stream_input:
'''
process_as_list = False
inputs_to_write = []
for cmd in cmds:
for pp_type in ['pp','spp','fpp']:
if self.detect_power_pipe(cmd, pp_type):
process_as_list = True
if options.execute or options.execute_aux:
process_as_list = True
if process_as_list: #normal operation allowing list operations
inputs_to_write = [] #safe copy
clean_inputs = []
for input in inputs:
clean_input = self.input_filter(input)
if clean_input is not False:
clean_inputs.append(PypStr(clean_input))
inputs_to_write.append(self.strip_last_newline(input))
self.process(clean_inputs, file_input, cmds, second_stream_input, process_as_list)
self.output(cmds)
else: #line by line mode eraseing memory after every print
#self.n = -1 # overall line counter. will change to 0 asap.
self.kept_n = 0 # counter of kept lines. needs to be avail for eval, so starts as 0
cmds_copy = cmds[:]
for line in inputs :
cmds = cmds_copy[:]
line = self.input_filter(line)
if line is not False: #catches lines filtered out by --ignore_blanks
line = PypStr(line)
inputs_to_write.append(self.strip_last_newline(line))
self.process([line], file_input, cmds, second_stream_input,process_as_list) #recursive processing to generate history dict
if self.history and self.history[0]['output'] != False: #first part allows blank ""
self.kept_n = self.kept_n + 1
self.output(cmds) #output text or execute commands from history dict
self.history = {} #new history every run
self.write_rerun(inputs_to_write)
def main(self):
'''generates input stream based on file, std-in options, rerun, starts process loop, generates output'''
second_stream_input = [PypStr(x) for x in args[1:]] #2nd stream input
file_input = [PypStr(x) for x in self.load_file() ]# file input
#load custom executer if possible.
self.final_execute=self.get_custom_execute()
#load user and group macros.
user_macro_path,group_macro_path=self.get_custom_macro_paths()
user_macros = self.load_macros(user_macro_path)
group_macros = self.load_macros(group_macro_path)
group_macros.update(user_macros) #merges group and user macros
macros = group_macros
#macros for action ie saving and deleting
action_macros = group_macros if options.macro_group else user_macros
action_macros_path = group_macro_path if options.macro_group else user_macro_path
self.list_macros(macros)
self.delete_macros(action_macros, action_macros_path)
if not args: # default command is just to print.
cmds = ['p']
else:
cmds = self.cmds_split(args[0], macros)
self.write_macros(action_macros, action_macros_path, cmds) #needs cmds before we write macros
inputs = self.initilize_input() #figure out our input stream
self.process_master_switch(inputs, file_input, cmds, second_stream_input)
class Docs():
@classmethod
def manual(cls):
return '''
===================================================================================
PYED PIPER MANUAL
pyp is a command line utility for parsing text output and generating complex
unix commands using standard python methods. pyp is powered by python, so any
standard python string or list operation is available.
The variable "p" represents EACH line of the input as a python string, so for
example, you can replace all "FOO" with "GOO" using "p.replace('FOO','GOO')".
Likewise, the variable "pp" represents the ENTIRE input as a python array, so
to sort the input alphabetically line-by-line, use "pp.sort()"
Standard python relies on whitespace formating such as indentions. Since this
is not convenient with command line operations, pyp employs an internal piping
structure ("|") similar to unix pipes. This allows passing of the output of
one command to the input of the next command without nested "(())" structures.
It also allows easy spliting and joining of text using single, commonsense
variables (see below). An added bonus is that any subresult between pipes
is available, making it easy to refer to the original input if needed.
Filtering output is straightforward using python Logic operations. Any output
that is "True" is kept while anything "False" is eliminated. So "p.isdigit()"
will keep all lines that are completely numbers.
The output of pyp has been optimized for typical command line scenarios. For
example, if text is broken up into an array using the "split()" method, the
output will be conveniently numbered by field because a field selection is
anticipated. If the variable "pp" is employed, the output will be numbered
line-by-line to facilitate picking any particular line or range of lines. In
both cases, standard python methods (list[start:end]) can be used to select
fields or lines of interest. Also, the standard python string and list objects
have been overloaded with commonly used methods and attributes. For example,
"pp.uniq()" returns all unique members in an array, and p.kill('foo') will
eliminate all "foo" in the input.
pyp commands can be easily saved to disk and recalled using user-defined macros,
so a complicated parsing operation requiring 20 or more steps can be recalled
easily, providing an alternative to quick and dirty scripts. For more advanced
users, these macros can be saved to a central location, allowing other users to
execute them. Also, an additional text file (PypCustom.py) can be set up that
allows additional methods to be added to the pyp str and list methods, allowing
tight integration with larger facilities data structures or custom tool sets.
-----------------------------------------------------------------------------------
PIPING IN THE PIPER
-----------------------------------------------------------------------------------
You can pipe data WITHIN a pyp statement using standard unix style pipes ("|"),
where "p" now represents the evaluation of the python statement before the "|".
You can also refer back to the ORIGINAL, unadulterated input using the variable
"o" or "original" at any time...and the variable "h" or "history" allows you
to refer back to ANY subresult generated between pipes ("|").
All pyp statements should be enclosed in double quotes, with single quotes being
used to enclose any strings.''' + Colors.YELLOW + '''
echo 'FOO IS AN ' | pyp "p.replace('FOO','THIS') | p + 'EXAMPLE'"
==> THIS IS AN EXAMPLE''' + Colors.GREEN + '''
-----------------------------------------------------------------------------------
THE TYPE OF COLOR IS THE TYPE
-----------------------------------------------------------------------------------
pyp uses a simple color and numerical indexing scheme to help you identify what
kind of objects you are working with. Don't worry about the specifics right now,
just keep in mind that different types can be readily identified:
strings: hello world
integers or floats:''' + Colors.YELLOW + ''' 1984''' + Colors.GREEN + '''
split-up line: ''' + Colors.BOLD + ''' [''' + Colors.BLUE + '[0]' + Colors.OFF + Colors.GREEN \
+ 'hello' + Colors.BOLD + Colors.BLUE + '[1]' + Colors.OFF + Colors.GREEN + '''world''' +\
Colors.BOLD + '] ' + Colors.OFF + Colors.GREEN + '''
entire input list: ''' +\
Colors.MAGENTA + '[0]' + Colors.GREEN + 'first line\n' + Colors.OFF +\
Colors.MAGENTA + ' [1]' + Colors.GREEN + 'second line' + Colors.OFF + Colors.GREEN + '''
dictionaries:''' + Colors.BOLD + ''' {''' + Colors.BLUE + 'hello world' + Colors.BOLD +\
Colors.GREEN + ': ' + Colors.OFF + Colors.GREEN + '1984' + Colors.BOLD + '}' + Colors.OFF + Colors.GREEN + '''
other objects:''' + Colors.MAGENTA + ' RANDOM_OBJECT' + Colors.GREEN + '''
The examples below will use a yellow/blue color scheme to seperate them
from the main text however. Also, all colors can be removed using the
--turn_off_color flag.
-----------------------------------------------------------------------------------
STRING OPERATIONS
-----------------------------------------------------------------------------------
Here is a simple example for splitting the output of "ls" (unix file list) on '.':''' + Colors.YELLOW + '''
ls random_frame.jpg | pyp "p.split('.')"
==> [''' + Colors.BLUE + '[0]' + Colors.YELLOW + 'random_frame' + Colors.BLUE + '[1]' + Colors.YELLOW + 'jpg] ''' + Colors.GREEN + '''
The variable "p" represents each line piped in from "ls". Notice the output has
index numbers, so it's trivial to pick a particular field or range of fields,
i.e. pyp "p.split('.')[0]" is the FIRST field. There are some pyp generated
variables that make this simpler, for example the variable "d" or "dot" is the
same as p.split('.'):''' + Colors.YELLOW + '''
ls random_frame.jpg | pyp "dot"
==> [''' + Colors.BLUE + '[0]' + Colors.YELLOW + 'random_frame' + Colors.BLUE + '[1]' + Colors.YELLOW + '''jpg]
ls random_frame.jpg | pyp "dot[0]"
==> random_frame''' + Colors.GREEN + '''
To Join lists back together, just pipe them to the same or another built-in
variable(in this case "u", or "underscore"):''' + Colors.YELLOW + '''
ls random_frame.jpg | pyp "dot"
==> [''' + Colors.BLUE + '[0]' + Colors.YELLOW + 'random_frame' + Colors.BLUE + '[1]' + Colors.YELLOW + '''jpg]
ls random_frame.jpg | pyp "dot|underscore"
==> random_frame_jpg ''' + Colors.GREEN + '''
To add text, just enclose it in quotes, and use "+" or "," just like python: ''' + Colors.YELLOW + '''
ls random_frame.jpg | pyp "'mkdir seq.tp_' , d[0]+ '_v1/misc_vd8'"
==> mkdir seq.tp_random_frame_v1/misc_vd8'" ''' + Colors.GREEN + '''
A fundamental difference between pyp and standard python is that pyp allows you
to print out strings and lists on the same line using the standard "+" and ","
notation that is used for string construction. This allows you to have a string
and then print out the results of a particular split so it's easy to pick out
your field of interest: ''' + Colors.YELLOW + '''
ls random_frame.jpg | pyp "'mkdir', dot"
==> mkdir [''' + Colors.BLUE + '[0]' + Colors.YELLOW + 'random_frame' + Colors.BLUE + '[1]' + Colors.YELLOW + '''jpg] '''+ Colors.GREEN + '''
In the same way, two lists can be displayed on the same line using "+" or ",".
If you are trying to actually combine two lists, enclose them in parentheses:''' + Colors.YELLOW + '''
ls random_frame.jpg | pyp "(underscore + dot)"
==> [''' + Colors.BLUE + '[0]' + Colors.YELLOW + 'random' + Colors.BLUE + '[1]' + Colors.YELLOW +'frame.jpg'\
+ Colors.BLUE + '[2]' + Colors.YELLOW + 'random_frame'+ Colors.BLUE + '[3]' + Colors.YELLOW + '''jpg] ''' + Colors.GREEN + '''
This behaviour with '+' and ',' holds true in fact for ANY object, making
it easy to build statements without having to worry about whether they
are strings or not.
-----------------------------------------------------------------------------------
ENTIRE INPUT LIST OPERATIONS
-----------------------------------------------------------------------------------
To perform operations that operate on the ENTIRE array of std-in, Use the variable
"pp", which you can manipulate using any standard python list methods. For example,
to sort the input, use:''' + Colors.YELLOW + '''
pp.sort()''' + Colors.GREEN + '''
When in array context, each line will be numbered with it's index in the array,
so it's easy to, for example select the 6th line of input by using "pp[5]".
You can pipe this back to p to continue modifying this input on a
line-by-line basis: ''' + Colors.YELLOW + '''
pp.sort() | p ''' + Colors.GREEN + '''
You can add arbitrary entries to your std-in stream at this point using
list addition. For example, to add an entry to the start and end:''' + Colors.YELLOW + '''
['first entry'] + pp + ['last entry'] ''' + Colors.GREEN + '''
The new pp will reflect these changes for all future operations.
There are several methods that have been added to python's normal list methods
to facilitate common operations. For example, keeping unique members or
consolidating all input to a single line can be accomplished with: '''+ Colors.YELLOW + '''
pp.uniq()
pp.oneline()'''+ Colors.GREEN + '''
Also, there are a few useful python math functions that work on lists of
integers or floats like sum, min, and max. For example, to add up
all of the integers in the last column of input: '''+ Colors.YELLOW + '''
whitespace[-1] | int(p) | sum(pp) '''+ Colors.GREEN + '''
-----------------------------------------------------------------------------------
MATH OPERATIONS
-----------------------------------------------------------------------------------
To perform simple math, use the integer or float functions (int() or float())
AND put the math in "()" + ''' + Colors.YELLOW + '''
echo 665 | pyp "(int(p) + 1)"
==> 666 ''' + Colors.GREEN + '''
-----------------------------------------------------------------------------------
LOGIC FILTERS
-----------------------------------------------------------------------------------
To filter output based on a python function that returns a Booleon (True or False),
just pipe the input to this function, and all lines that return True will keep
their current value, while all lines that return False will be eliminated. ''' + Colors.YELLOW + '''
echo 666 | pyp "p.isdigit()"
==> 666''' + Colors.GREEN + '''
Keep in mind, that if the Boolean is True, the entire value of p is returned.
This comes in handy when you want to test on one field, but use something else.
For example, a[2].isdigit() will return p, not a[2] if a[2] is a digit.
Standard python logic operators such as "and","or","not", and 'in' work as well.
For example to filter output based on the presence of "GOO" in the line, use this:''' + Colors.YELLOW + '''
echo GOO | pyp "'G' in p"
==> GOO'''+ Colors.GREEN + '''
The pyp functions "keep(STR)" and "lose(STR)", and their respective shortcuts,
"k(STR)" and "i(STR)", are very useful for simple OR style string
filtering. See below.
Also note, all lines that test False ('', {}, [], False, 0) are eliminated from
the output completely. You can instead print out a blank line if something tests
false using --keep_false. This is useful if you need placeholders to keep lists
in sync, for example.
-----------------------------------------------------------------------------------
SECOND STREAM, TEXT FILE, AND BLANK INPUT
-----------------------------------------------------------------------------------
Normally, pyp receives its input by piping into it like a standard unix shell
command, but sometimes it's necessary to combine two streams of inputs, such as
consolidating the output of two shell commands line by line. pyp provides
for this with the second stream input. Essentially anything after the pyp
command that is not associated with an option flag is brought into pyp as
the second stream, and can be accessed seperately from the primary stream
by using the variable 'sp'
To input a second stream of data, just tack on strings or execute (use backticks)
a command to the end of the pyp command, and then access this array using the
variable 'sp' ''' + Colors.YELLOW + '''
echo random_frame.jpg | pyp "p, sp" `echo "random_string"`
===> random_frame.jpg random_string''' + Colors.GREEN + '''
In a similar way, text input can be read in from a text file using the
--text_file flag. You can access the entire file as a list using the variable
'fpp', while the variable 'fp' reads in one line at a time. This text file
capability is very useful for lining up std-in data piped into pyp with
data in a text file like this:''' + Colors.YELLOW + '''
echo normal_input | pyp -text_file example.txt "p, fp" ''' + Colors.GREEN + '''
This setup is geared mostly towards combining data from std-in with that in
a text file. If the text file is your only data, you should cat it, and pipe
this into pyp.
If you need to generate output from pyp with no input, use --blank_inputs.
This is useful for generating text based on line numbers using the 'n'
variable.
-----------------------------------------------------------------------------------
TEXT FILE AND SECOND STREAM LIST OPERATIONS
-----------------------------------------------------------------------------------
List operations can be performed on file inputs and second stream
inputs using the variables spp and fpp, respectively. For example to sort
a file input, use: ''' + Colors.YELLOW + '''
fpp.sort() ''' + Colors.GREEN + '''
Once this operation takes place, the sorted fpp will be used for all future
operations, such as referring to the file input line-by-line using fp.
You can add these inputs to the std-in stream using simple list
additions like this: ''' + Colors.YELLOW + '''
pp + fpp ''' + Colors.GREEN + '''
If pp is 10 lines, and fpp is 10 line, this will result in a new pp stream
of 20 lines. fpp will remain untouched, only pp will change with this
operation.
Of course, you can trim these to your needs using standard
python list selection techniques: ''' + Colors.YELLOW + '''
pp[0:5] + fpp[0:5] ''' + Colors.GREEN + '''
This will result in a new composite input stream of 10 lines.
Keep in mind that the length of fpp and spp is trimmed to reflect
that of std-in. If you need to see more of your file or second
stream input, you can extend your std-in stream simply:''' + Colors.YELLOW + '''
pp + ['']*10 ''' + Colors.GREEN + '''
will add 10 blank lines to std-in, and thus reveal another 10
lines of fpp if available.
-----------------------------------------------------------------------------------
MACRO USAGE
-----------------------------------------------------------------------------------
Macros are a way to permently store useful commands for future recall. They are
stored in your home directory by default. Facilites are provided to store public
macros as well, which is useful for sharing complex commands within your work group.
Paths to these text files can be reset to anything you choose my modifying the
PypCustom.py config file. Macros can become quite complex, and provide
a useful intermediate between shell commands and scripts, especially for solving
one-off problems. Macro listing, saving, deleting, and searching capabilities are
accessible using --macrolist, --macro_save, --macro_delete, --macro_find flags.
Run pyp --help for more details.
you can pyp to and from macros just like any normal pyp command. ''' + Colors.YELLOW + '''
pyp "a[0]| my_favorite_macros | 'ls', p" ''' + Colors.GREEN + '''
Note, if the macro returns a list, you can access individual elements using
[n] syntax:''' + Colors.YELLOW + '''
pyp "my_list_macro[2]" ''' + Colors.GREEN + '''
Also, if the macro uses %s, you can append a %(string,..) to then end to string
substitute: ''' + Colors.YELLOW + '''
pyp "my_string_substitution_macro%('test','case')" ''' + Colors.GREEN + '''
By default, macros are saved in your home directory. This can be modifed to any
directory by modifying the user_macro_path attribute in your PypCustom.py. If
you work in a group, you can also save macros for use by others in a specific
location by modifying group_macro_path. See the section below on custom
methods about how to set up this file.
-----------------------------------------------------------------------------------
CUSTOM METHODS
-----------------------------------------------------------------------------------
pyed pyper relies on overloading the standard python string and list objects
with its own custom methods. If you'd like to try writing your own methods
either to simplify a common task or integrate custom functions using a
proprietary API, it's straightforward to do. You'll have to setup a config
file first:
pyp --unmodified_config > PypCustom.py
sudo chmod 666 PypCustom.py
There are example functions for string, list, powerpipe, and generic methods.
to get you started. When pyp runs, it looks for this text file and automatically
loads any found functions, overloading them into the appropriate objects. You
can then use your custom methods just like any other pyp function.
-----------------------------------------------------------------------------------
TIPS AND TRICKS
-----------------------------------------------------------------------------------
If you have to cut and paste data (from an email for example), execute pyp, paste
in your data, then hit CTRL-D. This will put the data into the disk buffer. Then,
just rerun pyp with --rerun, and you'll be able to access this data for further
pyp manipulations!
If you have split up a line into a list, and want to process this list line by
line, simply pipe the list to pp and then back to p: pyp "w | pp |p"
Using --rerun is also great way to buffer data into pyp from long-running scripts
pyp is an easy way to generate commands before executing them...iteratively keep
adding commands until you are confident, then use the --execute flag or pipe them
to sh. You can use ";" to set up dependencies between these commands...which is
an easy way to work out command sequences that would typically be executed in a
"foreach" loop.
Break out complex intermediate steps into macros. Macros can be run at any point in a
pyp command.
If you find yourself shelling out constantly to particular commands, it might
be worth adding python methods to the PypCustom.py config, especially if you
are at a large facility.
Many command line tools (like stat) use a KEY:VALUE format. The shelld function
will turn this into a python dictionary, so you can access specific data using
their respective keys by using something like this: shelld(COMMAND)[KEY]
===================================================================================
HERE ARE THE BUILT IN VARIABLES:
STD-IN (PRIMARY INPUT)
-------------
p line-by-line std-in variable. p represents whatever was
evaluated to before the previous pipe (|).
pp python list of ALL std-in input. In-place methods like
sort() will work as well as list methods like sorted(LIST)
SECOND STREAM
--------------
sp line-by-line input second stream input, like p, but from all
non-flag arguments AFTER pyp command: pyp "p, sp" SP1 SP2 SP3 ...
spp python list of ALL second stream list input. Modifications of
this list will be picked up with future references to sp
FILE INPUT
--------------
fp line-by-line file input using --text_file TEXT_FILE. fp on
the first line of output is the first line of the text file
fpp python list of ALL text file input. Modifications of
this list will be picked up with future references to fp
COMMON VARIABLES
----------------
original original line by line input to pyp
o same as original
quote a literal " (double quotes can't be used in a pyp expression)
paran a literal '
dollar a literal $
n line counter (1st line is 0, 2nd line is 1,...use the form "(n+3)"
to modify this value. n changes to reflect filtering and list ops.
nk n + 1000
date date and time. Returns the current datetime.datetime.now() object.
pwd present working directory
history history array of all previous results:
so pyp "a|u|s|i|h[-3]" shows eval of s
h same as history
digits all numbers [0-9]
letters all upper and lowercase letters (useful when combined with variable n).
letters[n] will print out "a" on the first line, "b" on the second...
punctuation all punctuation [!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~]
===================================================================================
THE FOLLOWING ARE SPLIT OR JOINED BASED ON p BEING A STRING OR AN ARRAY:
s OR slash p split/joined on "/"
d OR dot p split/joined on "."
w OR whitespace p split/joined on whitespace (on spaces,tabs,etc)
u OR underscore p split/joined on '_'
c OR colon p split/joined on ':'
mm OR comma p split/joined on ','
m OR minus p split/joined on '-'
a OR all p split on [' '-_=$...] (on "All" metacharacters)
Also, the ORIGINAL INPUT (history[0]) lines are split on delimiters as above, but
stored in os, od, ow, ou, oc, omm, om and oa as well as oslash, odot, owhitepace,
ocomma, ominus, and oall''' + Colors.GREEN + '''
===================================================================================
HERE ARE THE BUILT IN FUNCTIONS AND ATTRIBUTES:
Function Notes
--------------------------------------------------------------------------------
STRING (all python STRING methods like p.replace(STRING1,STRING2) work)
--------------------------------------------------------------------------------
p.digits() returns a list of contiguous numbers present in p
p.letters() returns a list of contiguous letters present in p
p.punctuation() returns a list of contiguous punctuation present in p
p.trim(delimiter) removes last field from string based on delimiter
with the default being "/"
p.kill(STR1,STR2...) removes specified strings
p.clean(delimeter) removes all metacharacters except for slashes, dots and
the joining delimeter (default is "_")
p.re(REGEX) returns portion of string that matches REGEX regular
expression. works great with p.replace(p.re(REGEX),STR)
p.rekill(RE1,RE2...) removes matches of specified regexes
p.rereplace(re, str) replaces all matches of regex with str
p.refindall(re) returns a list of all matches of regex
p.dir directory of path
p.file file name of path
p.ext file extension (jpg, tif, hip, etc) of path
These fuctions will work with all pyp strings eg: p, o, dot[0], p.trim(), etc.
Strings returned by native python functions (like split()) won't have these
available, but you can still access them using str(STRING). Basically,
manually recasting anything using as a str(STRING) will endow them with
the custom pyp methods and attributes.
--------------------------------------------------------------------------------
LIST (all LIST methods like pp.sort(), pp[-1], and pp.reverse() work)
--------------------------------------------------------------------------------
pp.delimit(DELIM) split input on delimiter instead of newlines
pp.divide(N) consolidates N consecutive lines to 1 line.
pp.before(STRING, N) searches for STRING, colsolidates N lines BEFORE it to
the same line. Default N is 1.
pp.after(STRING, N) searches for STRING, colsolidates N lines AFTER it to
same line. Default N is 1.
pp.matrix(STRING, N) returns pp.before(STRING, N) and pp.after(STRING, N).
Default N is 1.
pp.oneline(DELIM) combines all list elements to one line with delimiter.
Default delimeter is space.
pp.uniq() returns only unique elements
pp.unlist() breaks up ALL lists up into seperate single lines
pp + [STRING] normal python list addition extends list
pp + spp + fpp normal python list addition combines several inputs.
new input will be pp; spp and fpp are unaffected.
sum(pp), max(pp),... normal python list math works if pp is properly cast
i.e. all members of pp should be integers or floats.
These functions will also work on file and second stream lists: fpp and spp
--------------------------------------------------------------------------------
NATIVE PYP FUNCTIONS
--------------------------------------------------------------------------------
keep(STR1,STR2,...) keep all lines that have at least one STRING in them
k(STR1,STR2,...) shortcut for keep(STR1,STR2,...)
lose(STR1,STR2,...) lose all lines that have at least one STRING in them
l(STR1,STR2,...) shortcut for lose(STR1,STR2,...)
rekeep(REGEX) keep all lines that match REGEX regular expression
rek(REGEX) shortcut for rekeep(REGEX)
relose(REGEX) lose all lines that match REGEX regular expression
rel(REGEX) shortcut for relose(REGEX)
shell(SCRIPT) returns output of SCRIPT in a list.
shelld(SCRIPT,DELIM) returns output of SCRIPT in dictionary key/value seperated
on ':' (default) or supplied delimeter
env(ENVIROMENT_VAR) returns value of evironment variable using os.environ.get()
glob(PATH) returns globed files/directories at PATH. Make sure to use
'*' wildcard
str(STR) turns any object into an PypStr object, allowing use
of custom pyp methods as well as normal string methods.
SIMPLE EXAMPLES:
===================================================================================
pyp "'foo ' + p" ==> "foo" + current line
pyp "p.replace('x','y') | p + o" ==> current line w/replacement + original line
pyp "p.split(':')[0]" ==> first field of string split on ':'
pyp "slash[1:3]" ==> array of fields 1 and 2 of string split on '/'
pyp "s[1:3]|s" ==> string of above joined with '/'
''' + Colors.OFF
unmodified_config = '''
#!/usr/bin/env python
# This must be saved in same directory as pyp (or be in the python path)
# make sure to name this PypCustom.py and change permission to 666
import sys
import os
class Colors(object):
OFF = chr(27) + '[0m'
RED = chr(27) + '[31m'
GREEN = chr(27) + '[32m'
YELLOW = chr(27) + '[33m'
MAGENTA = chr(27) + '[35m'
CYAN = chr(27) + '[36m'
WHITE = chr(27) + '[37m'
BLUE = chr(27) + '[34m'
BOLD = chr(27) + '[1m'
COLORS = [OFF, RED, GREEN, YELLOW, MAGENTA, CYAN, WHITE, BLUE, BOLD]
class NoColors(object):
OFF = ''
RED = ''
GREEN =''
YELLOW = ''
MAGENTA = ''
CYAN = ''
WHITE =''
BLUE = ''
BOLD = ''
COLORS = [OFF, RED, GREEN, YELLOW, MAGENTA, CYAN, WHITE, BLUE, BOLD]
class PypCustom(object):
'modify below paths to set macro paths'
def __init__(self):
self.user_macro_path = os.path.expanduser('~')+ '/pyp_user_macros.json'
self.group_macro_path = os.path.expanduser('~')+ '/pyp_user_macros.json'
self.custom_execute = False
class PowerPipeListCustom():
'this is used for pp functions (list fuctions like sort) that operate on all inputs at once.'
def __init__(self, *args):
pass
def test(self):
print 'test' #pp.test() will print "test"
class PypStrCustom():
'this is used for string functions using p and other pyp string variables'
def __init__(self, *args):
self.test_attr = 'test attr'
def test(self):
print 'test' #p.test() will print "test" is p is a str
class PypListCustom():
def __init__(self, *args):
pass
def test(self):
print 'test' #p.test() will print "test" is p is a list broken up from a str
class PypFunctionCustom(object):
'this is used for custom functions and variables (non-instance)'
test_var = 'works'
def __init__(self, *args):
pass
def test(self):
print 'working func ' + self
'''
usage = """
pyp is a python-centric command line text manipulation tool. It allows you to format, replace, augment
and otherwise mangle text using standard python syntax with a few golden-oldie tricks from unix commands
of the past. You can pipe data into pyp or cut and paste text, and then hit ctrl-D to get your input into pyp.
After it's in, you can use the standard repertoire of python commands to modify the text. The key variables
are "p", which represents EACH LINE of the input as a PYTHON STRING. and "pp", which represents ALL of the
inputs as a PYTHON ARRAY.
You can pipe data WITHIN a pyp statement using standard unix style pipes ("|"), where "p" now represents the
evaluation of the python statement before the "|". You can also refer back to the ORIGINAL, unadulterated
input using the variable "o" or "original" at any time...and the variable "h" or "history" allows you
to refer back to ANY subresult generated between pipes ("|").
All pyp statements should be enclosed in double quotes, with single quotes being used to enclose any strings.
echo 'FOO IS AN ' | pyp "p.replace('FOO','THIS') | p + 'EXAMPLE'"
==> THIS IS AN EXAMPLE
Splitting texton metacharacters is often critical for picking out particular fields of interest,
so common SPLITS and JOINS have been assigned variables. For example, "underscore" or "u" will split a string
to an array based on undercores ("_"), while "underscore" or "u" will ALSO join an array with underscores ("_")
back to a string.
Here are a few key split/join variables; run with --manual for all variable and see examples below in the string section.
s OR slash splits AND joins on "/"
u OR underscore splits AND joins on "_"
w OR whitespace splits on whitespace (spaces,tabs,etc) AND joins with spaces
a OR all splits on ALL metacharacters [!@#$%^&*()...] AND joins with spaces
EXAMPLES:
------------------------------------------------------------------------------
List Operations # all python list methods work
------------------------------------------------------------------------------
print all lines ==> pyp "pp"
sort all input lines ==> pyp "pp.sort()"
eliminate duplicates ==> pyp "pp.uniq()"
combine all lines to one line ==> pyp "pp.oneline()"
print line after FOO ==> pyp "pp.after('FOO')"
list comprehenision ==> pyp "[x for x in pp]"
return to string context after sort ==> pyp "pp.sort() | p"
-------------------------------------------------------------------------------
String Operations # all python str methods work
-------------------------------------------------------------------------------
print line ==> pyp "p"
combine line with FOO ==> pyp "p +'FOO'"
above, but combine with original input ==> pyp "p +'FOO'| p + o"
replace FOO with GOO ==> pyp "p.replace('FOO','GOO')"
remove all GOO and FOO ==> pyp "p.kill('GOO','FOO')"
string substitution ==> pyp "'%s FOO %s %s GOO'%(p,p,5)"
split up line by FOO ==> pyp "p.split('FOO')"
split up line by '/' ==> pyp "slash"
select 1st field split up by '/' ==> pyp "slash[0]"
select fields 3 through 5 split up by '/' ==> pyp "s[2:6]"
above joined together with '/' ==> pyp "s[2:6] | s"
-------------------------------------------------------------------------------
Logic Filters # all python Booleon methods work
-------------------------------------------------------------------------------
keep all lines with GOO and FOO ==> pyp "'GOO' in p and 'FOO' in p"
keep all lines with GOO or FOO ==> pyp "keep('GOO','FOO')"
keep all lines that are numbers ==> pyp "p.isdigit()"
lose all lines with GOO and FOO ==> pyp "'GOO' not in p and 'FOO' not in p"
lose all lines with GOO or FOO ==> pyp "lose('GOO','FOO')"
lose all lines that are numbers ==> pyp "not p.isdigit()"
-------------------------------------------------------------------------------
TO SEE EXTENDED HELP, use --manual
"""
if __name__ == '__main__':
parser = optparse.OptionParser(Docs.usage)
parser.add_option("-m", "--manual", action='store_true', help="prints out extended help")
parser.add_option("-l", "--macro_list", action='store_true', help="lists all available macros")
parser.add_option("-s", "--macro_save", dest='macro_save_name', type='string', help='saves current command as macro. use "#" for adding comments EXAMPLE: pyp -s "great_macro # prints first letter" "p[1]"')
parser.add_option("-f", "--macro_find", dest='macro_find_name', type='string', help='searches for macros with keyword or user name')
parser.add_option("-d", "--macro_delete", dest='macro_delete_name', type='string', help='deletes specified public macro')
parser.add_option("-g", "--macro_group", action='store_true', help="specify group macros for save and delete; default is user")
parser.add_option("-t", "--text_file", type='string', help="specify text file to load. for advanced users, you should typically cat a file into pyp")
parser.add_option("-x", "--execute", action='store_true', help="execute all commands.")
parser.add_option("-q", "--quick", action='store_true', help="turbo mode for fast output. pyp variables not initialized.")
parser.add_option("-a", "--execute_aux", type='int', help="execute commands with auxillary data with custom executer")
parser.add_option("-c", "--turn_off_color", action='store_true', help="prints raw, uncolored output")
parser.add_option("-u", "--unmodified_config", action='store_true', help="prints out generic PypCustom.py config file")
parser.add_option("-b", "--blank_inputs", action='store', type='string', help="generate this number of blank input lines; useful for generating numbered lists with variable 'n'")
parser.add_option("-n", "--no_input", action='store_true', help="use with command that generates output with no input; same as --dummy_input 1")
parser.add_option("-i", "--ignore_blanks", action='store_true', help="remove blank lines from output")
parser.add_option("-k", "--keep_false", action='store_true', help="print blank lines for lines that test as False. default is to filter out False lines from the output")
parser.add_option("-r", "--rerun", action="store_true", help="rerun based on automatically cached data from the last run. use this after executing \"pyp\", pasting input into the shell, and hitting CTRL-D TWICE")
(options, args) = parser.parse_args()
if options.turn_off_color or options.execute or options.execute_aux: # overall color switch asap.
Colors = NoColors
#try:
pyp = Pyp().main()
#except Exception, err:
# print Colors.RED + str(err) + Colors.OFF
@HJarausch
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I have encountered some problems with function depending on one of the two flatten_list functions.
Furthermore I've add a 'balanced' function.
The script runs with Python2.7 as well as with Python3 (tested with version 3.6)
Unfortunately I cannot attach the new version since all formats (zip,txt) failed with "We don't support that file type".
If there is interest where can I upload the new version?
Helmut

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