cpython-lru_cache-weakref: Lib/pipes.py annotate

annotate Lib/pipes.py @ 4566:6403c94de50d legacy-trunk

Added safeguard against failure in __del__.

author	Guido van Rossum <guido@python.org>
date	Wed, 27 Nov 1996 19:39:58 +0000
parents	560ec7030817
children	24da035ceb6e

rev	line source
1078 245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	1 # Conversion pipeline templates
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	2 # =============================
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	3
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	4
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	5 # The problem:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	6 # ------------
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	7 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	8 # Suppose you have some data that you want to convert to another format
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	9 # (e.g. from GIF image format to PPM image format). Maybe the
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	10 # conversion involves several steps (e.g. piping it through compress or
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	11 # uuencode). Some of the conversion steps may require that their input
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	12 # is a disk file, others may be able to read standard input; similar for
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	13 # their output. The input to the entire conversion may also be read
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	14 # from a disk file or from an open file, and similar for its output.
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	15 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	16 # The module lets you construct a pipeline template by sticking one or
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	17 # more conversion steps together. It will take care of creating and
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	18 # removing temporary files if they are necessary to hold intermediate
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	19 # data. You can then use the template to do conversions from many
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	20 # different sources to many different destinations. The temporary
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	21 # file names used are different each time the template is used.
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	22 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	23 # The templates are objects so you can create templates for many
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	24 # different conversion steps and store them in a dictionary, for
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	25 # instance.
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	26
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	27
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	28 # Directions:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	29 # -----------
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	30 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	31 # To create a template:
1435 560ec7030817 * Mass change: get rid of all init() methods, in favor of __init__() Guido van Rossum <guido@python.org> parents: 1078 diff changeset	32 # t = Template()
1078 245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	33 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	34 # To add a conversion step to a template:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	35 # t.append(command, kind)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	36 # where kind is a string of two characters: the first is '-' if the
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	37 # command reads its standard input or 'f' if it requires a file; the
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	38 # second likewise for the output. The command must be valid /bin/sh
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	39 # syntax. If input or output files are required, they are passed as
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	40 # $IN and $OUT; otherwise, it must be possible to use the command in
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	41 # a pipeline.
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	42 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	43 # To add a conversion step at the beginning:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	44 # t.prepend(command, kind)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	45 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	46 # To convert a file to another file using a template:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	47 # sts = t.copy(infile, outfile)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	48 # If infile or outfile are the empty string, standard input is read or
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	49 # standard output is written, respectively. The return value is the
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	50 # exit status of the conversion pipeline.
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	51 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	52 # To open a file for reading or writing through a conversion pipeline:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	53 # fp = t.open(file, mode)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	54 # where mode is 'r' to read the file, or 'w' to write it -- just like
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	55 # for the built-in function open() or for os.popen().
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	56 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	57 # To create a new template object initialized to a given one:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	58 # t2 = t.clone()
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	59 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	60 # For an example, see the function test() at the end of the file.
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	61
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	62
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	63 import sys
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	64 import regex
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	65
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	66 import os
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	67 import tempfile
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	68 import string
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	69
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	70
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	71 # Conversion step kinds
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	72
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	73 FILEIN_FILEOUT = 'ff' # Must read & write real files
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	74 STDIN_FILEOUT = '-f' # Must write a real file
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	75 FILEIN_STDOUT = 'f-' # Must read a real file
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	76 STDIN_STDOUT = '--' # Normal pipeline element
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	77 SOURCE = '.-' # Must be first, writes stdout
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	78 SINK = '-.' # Must be last, reads stdin
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	79
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	80 stepkinds = [FILEIN_FILEOUT, STDIN_FILEOUT, FILEIN_STDOUT, STDIN_STDOUT, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	81 SOURCE, SINK]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	82
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	83
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	84 # A pipeline template is a Template object:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	85
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	86 class Template:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	87
1435 560ec7030817 * Mass change: get rid of all init() methods, in favor of __init__() Guido van Rossum <guido@python.org> parents: 1078 diff changeset	88 # Template() returns a fresh pipeline template
560ec7030817 * Mass change: get rid of all init() methods, in favor of __init__() Guido van Rossum <guido@python.org> parents: 1078 diff changeset	89 def __init__(self):
1078 245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	90 self.debugging = 0
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	91 self.reset()
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	92
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	93 # t.__repr__() implements `t`
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	94 def __repr__(self):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	95 return '<Template instance, steps=' + `self.steps` + '>'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	96
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	97 # t.reset() restores a pipeline template to its initial state
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	98 def reset(self):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	99 self.steps = []
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	100
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	101 # t.clone() returns a new pipeline template with identical
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	102 # initial state as the current one
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	103 def clone(self):
1435 560ec7030817 * Mass change: get rid of all init() methods, in favor of __init__() Guido van Rossum <guido@python.org> parents: 1078 diff changeset	104 t = Template()
1078 245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	105 t.steps = self.steps[:]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	106 t.debugging = self.debugging
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	107 return t
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	108
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	109 # t.debug(flag) turns debugging on or off
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	110 def debug(self, flag):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	111 self.debugging = flag
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	112
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	113 # t.append(cmd, kind) adds a new step at the end
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	114 def append(self, cmd, kind):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	115 if type(cmd) <> type(''):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	116 raise TypeError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	117 'Template.append: cmd must be a string'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	118 if kind not in stepkinds:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	119 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	120 'Template.append: bad kind ' + `kind`
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	121 if kind == SOURCE:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	122 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	123 'Template.append: SOURCE can only be prepended'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	124 if self.steps <> [] and self.steps[-1][1] == SINK:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	125 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	126 'Template.append: already ends with SINK'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	127 if kind[0] == 'f' and regex.search('\$IN', cmd) < 0:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	128 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	129 'Template.append: missing $IN in cmd'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	130 if kind[1] == 'f' and regex.search('\$OUT', cmd) < 0:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	131 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	132 'Template.append: missing $OUT in cmd'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	133 self.steps.append((cmd, kind))
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	134
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	135 # t.prepend(cmd, kind) adds a new step at the front
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	136 def prepend(self, cmd, kind):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	137 if type(cmd) <> type(''):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	138 raise TypeError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	139 'Template.prepend: cmd must be a string'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	140 if kind not in stepkinds:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	141 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	142 'Template.prepend: bad kind ' + `kind`
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	143 if kind == SINK:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	144 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	145 'Template.prepend: SINK can only be appended'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	146 if self.steps <> [] and self.steps[0][1] == SOURCE:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	147 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	148 'Template.prepend: already begins with SOURCE'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	149 if kind[0] == 'f' and regex.search('\$IN\>', cmd) < 0:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	150 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	151 'Template.prepend: missing $IN in cmd'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	152 if kind[1] == 'f' and regex.search('\$OUT\>', cmd) < 0:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	153 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	154 'Template.prepend: missing $OUT in cmd'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	155 self.steps.insert(0, (cmd, kind))
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	156
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	157 # t.open(file, rw) returns a pipe or file object open for
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	158 # reading or writing; the file is the other end of the pipeline
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	159 def open(self, file, rw):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	160 if rw == 'r':
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	161 return self.open_r(file)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	162 if rw == 'w':
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	163 return self.open_w(file)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	164 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	165 'Template.open: rw must be \'r\' or \'w\', not ' + `rw`
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	166
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	167 # t.open_r(file) and t.open_w(file) implement
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	168 # t.open(file, 'r') and t.open(file, 'w') respectively
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	169
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	170 def open_r(self, file):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	171 if self.steps == []:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	172 return open(file, 'r')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	173 if self.steps[-1][1] == SINK:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	174 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	175 'Template.open_r: pipeline ends width SINK'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	176 cmd = self.makepipeline(file, '')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	177 return os.popen(cmd, 'r')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	178
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	179 def open_w(self, file):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	180 if self.steps == []:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	181 return open(file, 'w')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	182 if self.steps[0][1] == SOURCE:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	183 raise ValueError, \
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	184 'Template.open_w: pipeline begins with SOURCE'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	185 cmd = self.makepipeline('', file)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	186 return os.popen(cmd, 'w')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	187
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	188 def copy(self, infile, outfile):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	189 return os.system(self.makepipeline(infile, outfile))
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	190
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	191 def makepipeline(self, infile, outfile):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	192 cmd = makepipeline(infile, self.steps, outfile)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	193 if self.debugging:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	194 print cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	195 cmd = 'set -x; ' + cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	196 return cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	197
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	198
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	199 def makepipeline(infile, steps, outfile):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	200 # Build a list with for each command:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	201 # [input filename or '', command string, kind, output filename or '']
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	202
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	203 list = []
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	204 for cmd, kind in steps:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	205 list.append(['', cmd, kind, ''])
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	206 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	207 # Make sure there is at least one step
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	208 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	209 if list == []:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	210 list.append(['', 'cat', '--', ''])
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	211 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	212 # Take care of the input and output ends
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	213 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	214 [cmd, kind] = list[0][1:3]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	215 if kind[0] == 'f' and not infile:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	216 list.insert(0, ['', 'cat', '--', ''])
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	217 list[0][0] = infile
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	218 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	219 [cmd, kind] = list[-1][1:3]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	220 if kind[1] == 'f' and not outfile:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	221 list.append(['', 'cat', '--', ''])
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	222 list[-1][-1] = outfile
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	223 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	224 # Invent temporary files to connect stages that need files
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	225 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	226 garbage = []
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	227 for i in range(1, len(list)):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	228 lkind = list[i-1][2]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	229 rkind = list[i][2]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	230 if lkind[1] == 'f' or rkind[0] == 'f':
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	231 temp = tempfile.mktemp()
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	232 garbage.append(temp)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	233 list[i-1][-1] = list[i][0] = temp
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	234 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	235 for item in list:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	236 [inf, cmd, kind, outf] = item
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	237 if kind[1] == 'f':
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	238 cmd = 'OUT=' + quote(outf) + '; ' + cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	239 if kind[0] == 'f':
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	240 cmd = 'IN=' + quote(inf) + '; ' + cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	241 if kind[0] == '-' and inf:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	242 cmd = cmd + ' <' + quote(inf)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	243 if kind[1] == '-' and outf:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	244 cmd = cmd + ' >' + quote(outf)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	245 item[1] = cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	246 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	247 cmdlist = list[0][1]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	248 for item in list[1:]:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	249 [cmd, kind] = item[1:3]
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	250 if item[0] == '':
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	251 if 'f' in kind:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	252 cmd = '{ ' + cmd + '; }'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	253 cmdlist = cmdlist + ' \|\n' + cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	254 else:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	255 cmdlist = cmdlist + '\n' + cmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	256 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	257 if garbage:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	258 rmcmd = 'rm -f'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	259 for file in garbage:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	260 rmcmd = rmcmd + ' ' + quote(file)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	261 trapcmd = 'trap ' + quote(rmcmd + '; exit') + ' 1 2 3 13 14 15'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	262 cmdlist = trapcmd + '\n' + cmdlist + '\n' + rmcmd
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	263 #
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	264 return cmdlist
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	265
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	266
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	267 # Reliably quote a string as a single argument for /bin/sh
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	268
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	269 _safechars = string.letters + string.digits + '!@%_-+=:,./' # Safe unquoted
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	270 _funnychars = '"`$\\' # Unsafe inside "double quotes"
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	271
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	272 def quote(file):
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	273 for c in file:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	274 if c not in _safechars:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	275 break
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	276 else:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	277 return file
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	278 if '\'' not in file:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	279 return '\'' + file + '\''
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	280 res = ''
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	281 for c in file:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	282 if c in _funnychars:
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	283 c = '\\' + c
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	284 res = res + c
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	285 return '"' + res + '"'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	286
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	287
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	288 # Small test program and example
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	289
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	290 def test():
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	291 import os
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	292 print 'Testing...'
1435 560ec7030817 * Mass change: get rid of all init() methods, in favor of __init__() Guido van Rossum <guido@python.org> parents: 1078 diff changeset	293 t = Template()
1078 245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	294 t.append('togif $IN $OUT', 'ff')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	295 t.append('giftoppm', '--')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	296 t.append('ppmtogif >$OUT', '-f')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	297 t.append('fromgif $IN $OUT', 'ff')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	298 t.debug(1)
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	299 FILE = '/usr/local/images/rgb/rogues/guido.rgb'
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	300 t.copy(FILE, '@temp')
245003c006a6 Misc changes and new modules. whrandom is "objectified". SOCKET.py Guido van Rossum <guido@python.org> parents: diff changeset	301 print 'Done.'

Mercurial > cpython-lru_cache-weakref

annotate Lib/pipes.py @ 4566:6403c94de50d legacy-trunk