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/*
* unquote.c: Handle quote removal and quoted-pair strings on
* RFC 2822-5322 atoms.
*
* This code is Copyright (c) 2013, by the authors of nmh. See the
* COPYRIGHT file in the root directory of the nmh distribution for
* complete copyright information.
*/
#include <h/mh.h>
/*
* Remove quotes (and handle escape strings) from RFC 5322 quoted-strings.
*
* Since we never add characters to the string, the output buffer is assumed
* to have at least as many characters as the input string.
*
*/
void
unquote_string(const char *input, char *output)
{
int n = 0; /* n is the position in the input buffer */
int m = 0; /* m is the position in the output buffer */
while ( input[n] != '\0') {
switch ( input[n] ) {
case '\\':
n++;
if ( input[n] != '\0')
output[m++] = input[n++];
break;
case '"':
n++;
break;
default:
output[m++] = input[n++];
break;
}
}
output[m] = '\0';
return;
}
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