hotwire 0.721-2 / usr / share / pyshared / hotwire / builtins / cat.py

# This file is part of the Hotwire Shell project API.

# Copyright (C) 2007 Colin Walters <walters@verbum.org>

# Permission is hereby granted, free of charge, to any person obtaining a copy 
# of this software and associated documentation files (the "Software"), to deal 
# in the Software without restriction, including without limitation the rights 
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies 
# of the Software, and to permit persons to whom the Software is furnished to do so, 
# subject to the following conditions:

# The above copyright notice and this permission notice shall be included in all 
# copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
# INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A 
# PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE 
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 
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# THE USE OR OTHER DEALINGS IN THE SOFTWARE.

from hotwire.fs import FilePath, open_text_file
from hotwire.builtin import builtin_hotwire

@builtin_hotwire(output=str,
                 idempotent=True)
def cat(context, *files):
    _("""Yield content lines from file path arguments.""")    
    for f in files:
        fpath = FilePath(f, context.cwd)
        for line in open_text_file(fpath):
            yield line