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/* Header rename functions -*- mfl -*-
Copyright (C) 2010-2011, 2015 Sergey Poznyakoff
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
module 'header_rename'.
func header_rename(string name, string newname; number idx)
do
if not defined(idx)
set idx 1
fi
number msg current_message()
number count message_header_count(msg)
string lc tolower(name)
loop for number i 1,
while i < count,
set i i + 1
do
if tolower(message_nth_header_name(msg, i)) == lc
set idx idx - 1
if idx == 0
header_replace_nth(i, newname, message_nth_header_value(msg, i))
return
fi
fi
done
done
/* If PREFIX is specified, rename all headers named NAME to
PREFIXNAME. Otherwise, remove all such headers. */
func header_prefix_all(string pattern; string prefix)
do
number msg current_message()
number count message_header_count(msg)
string lc tolower(pattern)
loop for number i count,
while i >= 1,
set i i - 1
do
string name message_nth_header_name(msg, i)
if tolower(name) == lc
if defined(prefix)
header_replace_nth(i, prefix.name, message_nth_header_value(msg, i))
else
header_delete_nth(i)
fi
fi
done
done
/* If PREFIX is specified, rename all headers matching PATTERN to
PREFIXNAME. Otherwise, remove them. */
func header_prefix_pattern(string pattern; string prefix)
do
number msg current_message()
number count message_header_count(msg)
loop for number i 1,
while i <= count,
set i i + 1
do
string name message_nth_header_name(msg, i)
if name fnmatches pattern
if defined(prefix)
header_replace_nth(i, prefix.name, message_nth_header_value(msg, i))
else
header_delete_nth(i)
fi
fi
done
done
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