diff options
author | nobody <nobody@localhost> | 2003-06-29 00:20:00 +0800 |
---|---|---|
committer | nobody <nobody@localhost> | 2003-06-29 00:20:00 +0800 |
commit | 78df46c6a5f301ed1edcd6ea048d9b523938fc6e (patch) | |
tree | e521429188462e4446c632b5bd4b6f333e589995 /camel/camel-mime-filter-bestenc.c | |
parent | 5a8e20476b93515b8e69f7e1c8f659ab3dc55a8f (diff) | |
download | gsoc2013-evolution-GNOME_VFS_2_5_1.tar gsoc2013-evolution-GNOME_VFS_2_5_1.tar.gz gsoc2013-evolution-GNOME_VFS_2_5_1.tar.bz2 gsoc2013-evolution-GNOME_VFS_2_5_1.tar.lz gsoc2013-evolution-GNOME_VFS_2_5_1.tar.xz gsoc2013-evolution-GNOME_VFS_2_5_1.tar.zst gsoc2013-evolution-GNOME_VFS_2_5_1.zip |
This commit was manufactured by cvs2svn to create tagGNOME_VFS_2_5_1
'GNOME_VFS_2_5_1'.
svn path=/tags/GNOME_VFS_2_5_1/; revision=21653
Diffstat (limited to 'camel/camel-mime-filter-bestenc.c')
-rw-r--r-- | camel/camel-mime-filter-bestenc.c | 300 |
1 files changed, 0 insertions, 300 deletions
diff --git a/camel/camel-mime-filter-bestenc.c b/camel/camel-mime-filter-bestenc.c deleted file mode 100644 index 5fc0bb9985..0000000000 --- a/camel/camel-mime-filter-bestenc.c +++ /dev/null @@ -1,300 +0,0 @@ -/* - * Copyright (C) 2000 Ximian Inc. - * - * Authors: Michael Zucchi <notzed@ximian.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * 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, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. - */ - - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdio.h> -#include <string.h> - -#include "camel-mime-filter-bestenc.h" - -static void camel_mime_filter_bestenc_class_init (CamelMimeFilterBestencClass *klass); -static void camel_mime_filter_bestenc_init (CamelMimeFilter *obj); - -static CamelMimeFilterClass *camel_mime_filter_bestenc_parent; - -CamelType -camel_mime_filter_bestenc_get_type (void) -{ - static CamelType type = CAMEL_INVALID_TYPE; - - if (type == CAMEL_INVALID_TYPE) { - type = camel_type_register (camel_mime_filter_get_type (), "CamelMimeFilterBestenc", - sizeof (CamelMimeFilterBestenc), - sizeof (CamelMimeFilterBestencClass), - (CamelObjectClassInitFunc) camel_mime_filter_bestenc_class_init, - NULL, - (CamelObjectInitFunc) camel_mime_filter_bestenc_init, - NULL); - } - - return type; -} - -static void -reset(CamelMimeFilter *mf) -{ - CamelMimeFilterBestenc *f = (CamelMimeFilterBestenc *)mf; - - f->count0 = 0; - f->count8 = 0; - f->countline = 0; - f->total = 0; - f->lastc = ~0; - f->crlfnoorder = FALSE; - f->fromcount = 0; - f->hadfrom = FALSE; - f->startofline = TRUE; - - camel_charset_init(&f->charset); -} - -static void -filter(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlen, size_t *outprespace) -{ - CamelMimeFilterBestenc *f = (CamelMimeFilterBestenc *)mf; - register unsigned char *p, *pend; - - if (len == 0) - goto donothing; - - if (f->flags & CAMEL_BESTENC_GET_ENCODING) { - register unsigned int /* hopefully reg's are assinged in the order they appear? */ - c, - lastc=f->lastc, - countline=f->countline, - count0=f->count0, - count8 = f->count8; - - /* Check ^From lines first call, or have the start of a new line waiting? */ - if ((f->flags & CAMEL_BESTENC_NO_FROM) && !f->hadfrom - && (f->fromcount > 0 || f->startofline)) { - if (f->fromcount + len >=5) { - memcpy(&f->fromsave[f->fromcount], in, 5-f->fromcount); - f->hadfrom = strncmp(f->fromsave, "From ", 5) == 0; - f->fromcount = 0; - } else { - memcpy(&f->fromsave[f->fromcount], in, len); - f->fromcount += len; - } - } - - f->startofline = FALSE; - - /* See rfc2045 section 2 for definitions of 7bit/8bit/binary */ - p = in; - pend = p + len; - while (p<pend) { - c = *p++; - /* check for 8 bit characters */ - if (c & 0x80) - count8++; - - /* check for nul's */ - if (c == 0) - count0++; - - /* check for wild '\r's in a unix format stream */ - if (c == '\r' && (f->flags & CAMEL_BESTENC_LF_IS_CRLF)) { - f->crlfnoorder = TRUE; - } - - /* check for end of line */ - if (c == '\n') { - /* check for wild '\n's in canonical format stream */ - if (lastc == '\r' || (f->flags & CAMEL_BESTENC_LF_IS_CRLF)) { - if (countline > f->maxline) - f->maxline = countline; - countline = 0; - - /* Check for "^From " lines */ - if ((f->flags & CAMEL_BESTENC_NO_FROM) && !f->hadfrom) { - if (pend-p >= 5) { - f->hadfrom = strncmp(p, "From ", 5) == 0; - } else if (pend-p == 0) { - f->startofline = TRUE; - } else { - f->fromcount = pend-p; - memcpy(f->fromsave, p, pend-p); - } - } - } else { - f->crlfnoorder = TRUE; - } - } else { - countline++; - } - lastc = c; - } - f->count8 = count8; - f->count0 = count0; - f->countline = countline; - f->lastc = lastc; - } - - f->total += len; - - if (f->flags & CAMEL_BESTENC_GET_CHARSET) - camel_charset_step(&f->charset, in, len); - -donothing: - *out = in; - *outlen = len; - *outprespace = prespace; -} - -static void -complete(CamelMimeFilter *mf, char *in, size_t len, size_t prespace, char **out, size_t *outlen, size_t *outprespace) -{ - CamelMimeFilterBestenc *f = (CamelMimeFilterBestenc *)mf; - - filter(mf, in, len, prespace, out, outlen, outprespace); - - if (f->countline > f->maxline) - f->maxline = f->countline; - f->countline = 0; -} - -static void -camel_mime_filter_bestenc_class_init (CamelMimeFilterBestencClass *klass) -{ - CamelMimeFilterClass *filter_class = (CamelMimeFilterClass *) klass; - - camel_mime_filter_bestenc_parent = (CamelMimeFilterClass *)(camel_type_get_global_classfuncs (camel_mime_filter_get_type ())); - - filter_class->reset = reset; - filter_class->filter = filter; - filter_class->complete = complete; -} - -static void -camel_mime_filter_bestenc_init (CamelMimeFilter *f) -{ - reset(f); -} - -/** - * camel_mime_filter_bestenc_new: - * @flags: A bitmask of data required. - * - * Create a new CamelMimeFilterBestenc object. - * - * Return value: - **/ -CamelMimeFilterBestenc * -camel_mime_filter_bestenc_new (unsigned int flags) -{ - CamelMimeFilterBestenc *new = (CamelMimeFilterBestenc *)camel_object_new(camel_mime_filter_bestenc_get_type()); - new->flags = flags; - return new; -} - -/** - * camel_mime_filter_bestenc_get_best_encoding: - * @f: bestenc filter object - * @required: maximum level of output encoding allowed. - * - * Return the best encoding, given specific constraints, that can be used to - * encode a stream of bytes. - * - * Return value: - **/ -CamelMimePartEncodingType -camel_mime_filter_bestenc_get_best_encoding(CamelMimeFilterBestenc *f, CamelBestencEncoding required) -{ - CamelMimePartEncodingType bestenc; - int istext; - - istext = (required & CAMEL_BESTENC_TEXT) ? 1 : 0; - required = required & ~CAMEL_BESTENC_TEXT; - -#if 0 - printf("count0 = %d, count8 = %d, total = %d\n", f->count0, f->count8, f->total); - printf("maxline = %d, crlfnoorder = %s\n", f->maxline, f->crlfnoorder?"TRUE":"FALSE"); - printf(" %d%% require encoding?\n", (f->count0+f->count8)*100 / f->total); -#endif - - /* if we're not allowed to have From lines and we had one, use an encoding - that will never let it show. Unfortunately only base64 can at present, - although qp could be modified to allow it too */ - if ((f->flags & CAMEL_BESTENC_NO_FROM) && f->hadfrom) - return CAMEL_MIME_PART_ENCODING_BASE64; - - /* if we need to encode, see how we do it */ - if (required == CAMEL_BESTENC_BINARY) - bestenc = CAMEL_MIME_PART_ENCODING_BINARY; - else if (istext && (f->count0 == 0 && f->count8 < (f->total * 17 / 100))) - bestenc = CAMEL_MIME_PART_ENCODING_QUOTEDPRINTABLE; - else - bestenc = CAMEL_MIME_PART_ENCODING_BASE64; - - /* if we have nocrlf order, or long lines, we need to encode always */ - if (f->crlfnoorder || f->maxline >= 998) - return bestenc; - - /* if we have no 8 bit chars or nul's, we can just use 7 bit */ - if (f->count8 + f->count0 == 0) - return CAMEL_MIME_PART_ENCODING_7BIT; - - /* otherwise, we see if we can use 8 bit, or not */ - switch(required) { - case CAMEL_BESTENC_7BIT: - return bestenc; - case CAMEL_BESTENC_8BIT: - case CAMEL_BESTENC_BINARY: - default: - if (f->count0 == 0) - return CAMEL_MIME_PART_ENCODING_8BIT; - else - return bestenc; - } - - return CAMEL_MIME_PART_ENCODING_DEFAULT; -} - -/** - * camel_mime_filter_bestenc_get_best_charset: - * @f: bestenc filter object - * - * Gets the best charset that can be used to contain this content. - * - * Return value: - **/ -const char * -camel_mime_filter_bestenc_get_best_charset(CamelMimeFilterBestenc *f) -{ - return camel_charset_best_name(&f->charset); -} - -/** - * camel_mime_filter_bestenc_set_flags: - * @f: - * @flags: - * - * Set the flags for subsequent operations. - **/ -void -camel_mime_filter_bestenc_set_flags(CamelMimeFilterBestenc *f, unsigned int flags) -{ - f->flags = flags; -} |