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Re: subject is deleted instead of rewritten
From: |
Ronan Waide |
Subject: |
Re: subject is deleted instead of rewritten |
Date: |
Thu, 9 Jan 2003 23:46:00 +0000 |
*sigh* sent you the pre-correction code.
Note, this compiles, and I think the logic's okay, but I've not
commited it to anything like a testbed.
cheers,
Waider.
// retrieve the content of a specific field in the header
// and return it.
string
retrieve_field(const string& header, const string& field)
{
// Find the field
string::size_type field_start = string::npos;
string::size_type field_end = string::npos;
string::size_type idx = 0;
while( field_start == string::npos ) {
idx = find_nocase( header, field + string(":"), idx );
// no match
if ( idx == string::npos ) {
debug( 3, "r_f: field not found" );
return string( "" );
}
// The string we've found needs to be either at the start of the
// headers string, or immediately following a "\n"
if ( idx != 0 ) {
if ( header[ idx - 1 ] != '\n' ) {
idx++; // so we don't get stuck in an infinite loop
continue; // loop around again
}
}
}
// A mail field starts just after the header. Ideally, there's a
// space, but it's possible that there isn't.
field_start += field.length() + 1;
if ( field_start < ( header.length() - 1 ) && header[ field_start ] == ' ' ) {
field_start++;
}
// See if there's anything left, to shortcut the rest of the
// function.
if ( field_start == header.length() - 1 ) {
return string( "" );
}
// The field continues to the end of line. If the start of the next
// line is whitespace, then the field continues.
idx = field_start;
while( field_end == string::npos ) {
idx = header.find( "\n", idx );
// if we don't find a "\n", or it's at the end of the headers then
// gobble everything to the end of the headers
if (( idx == string::npos ) || ( idx == header.length() - 1 )) {
field_end = header.length() - 1;
} else {
// check the next character
if (( idx + 1 ) < header.length() && ( isspace( header[ idx + 1 ] )))
{
idx ++; // whitespace found, so wrap to the next line
} else {
field_end = idx;
}
}
}
// possible cleanups:
// trim the trailing \n
// remove the whitespace picked up when a header wraps - this is
// actually a requirement rather than a possible cleanup.
return header.substr( field_start, field_end - field_start );
};
--
address@hidden / Yes, it /is/ very personal of me.
Some people just don't know which side of the good/evil thing to side
with, despite the obvious "fun now, pay later" advantages of the evil
side for those of us who need instant gratification.
- Re: subject is deleted instead of rewritten, (continued)
- Re: subject is deleted instead of rewritten, Ronan Waide, 2003/01/09
- Re: subject is deleted instead of rewritten, Niki Waibel, 2003/01/09
- Re: subject or content-type deleted instead of rewritten, Niki Waibel, 2003/01/09
- Re: subject or content-type deleted instead of rewritten, Niki Waibel, 2003/01/09
- Re: subject or content-type deleted instead of rewritten, Ronan Waide, 2003/01/09
- subject or content-type deleted instead of rewritten -- fixed, Niki Waibel, 2003/01/09
- Re: subject is deleted instead of rewritten, Dan Nelson, 2003/01/09
- Re: subject is deleted instead of rewritten, Ronan Waide, 2003/01/09
- Re: subject is deleted instead of rewritten, Dan Nelson, 2003/01/09
- Re: subject is deleted instead of rewritten, Ronan Waide, 2003/01/09
- Re: subject is deleted instead of rewritten,
Ronan Waide <=