author | Mike Kinghan <mikek@symbian.org> |
Thu, 25 Nov 2010 14:28:39 +0000 | |
branch | GCC_SURGE |
changeset 135 | 10852f1a0ae9 |
parent 1 | 2fb8b9db1c86 |
permissions | -rw-r--r-- |
1
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"""Generate the skeleton for cStringIO as an example of framer.""" |
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from framer.bases import Module, Type |
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from framer.member import member |
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class cStringIO(Module): |
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"""A simple fast partial StringIO replacement. |
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This module provides a simple useful replacement for the StringIO |
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module that is written in C. It does not provide the full |
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generality of StringIO, but it provides enough for most |
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applications and is especially useful in conjunction with the |
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pickle module. |
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Usage: |
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from cStringIO import StringIO |
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an_output_stream = StringIO() |
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an_output_stream.write(some_stuff) |
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... |
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value = an_output_stream.getvalue() |
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an_input_stream = StringIO(a_string) |
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spam = an_input_stream.readline() |
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spam = an_input_stream.read(5) |
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an_input_stream.seek(0) # OK, start over |
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spam = an_input_stream.read() # and read it all |
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""" |
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__file__ = "cStringIO.c" |
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def StringIO(o): |
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"""Return a StringIO-like stream for reading or writing""" |
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StringIO.pyarg = "|O" |
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class InputType(Type): |
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"Simple type for treating strings as input file streams" |
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abbrev = "input" |
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struct = """\ |
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typedef struct { |
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PyObject_HEAD |
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char *buf; |
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int pos; |
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int size; |
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PyObject *pbuf; |
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} InputObject; |
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""" |
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def flush(self): |
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"""Does nothing""" |
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def getvalue(self): |
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"""Get the string value. |
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If use_pos is specified and is a true value, then the |
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string returned will include only the text up to the |
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current file position. |
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""" |
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def isatty(self): |
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"""Always returns False""" |
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def read(self, s): |
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"""Return s characters or the rest of the string.""" |
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read.pyarg = "|i" |
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def readline(self): |
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"""Read one line.""" |
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def readlines(self, hint): |
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"""Read all lines.""" |
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readlines.pyarg = "|i" |
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def reset(self): |
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"""Reset the file position to the beginning.""" |
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def tell(self): |
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"""Get the current position.""" |
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def truncate(self, pos): |
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"""Truncate the file at the current position.""" |
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truncate.pyarg = "|i" |
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def seek(self, position, mode=0): |
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"""Set the current position. |
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The optional mode argument can be 0 for absolute, 1 for relative, |
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and 2 for relative to EOF. The default is absolute. |
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""" |
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seek.pyarg = "i|i" |
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def close(self): |
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pass |
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class OutputType(InputType): |
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"Simple type for output strings." |
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abbrev = "output" |
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struct = """\ |
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typedef struct { |
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PyObject_HEAD |
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char *buf; |
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int pos; |
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int size; |
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int softspace; |
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} OutputObject; |
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""" |
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112 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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113 |
softspace = member() |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
|
114 |
|
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
|
115 |
def close(self): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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116 |
"""Explicitly release resources.""" |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
|
117 |
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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118 |
def write(self, s): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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|
119 |
"""Write a string to the file.""" |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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120 |
# XXX Hack: writing None resets the buffer |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
|
121 |
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
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122 |
def writelines(self, lines): |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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123 |
"""Write each string in lines.""" |
2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
|
124 |
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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changeset
|
125 |
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2fb8b9db1c86
Initial QEMU (symbian-qemu-0.9.1-12) import
martin.trojer@nokia.com
parents:
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|
126 |
cStringIO.gen() |