## camel-mime-utils

camel-mime-utils

## Synopsis

    #define             CAMEL_FOLD_SIZE
    #define             CAMEL_FOLD_MAX_SIZE
    #define             CAMEL_UUDECODE_STATE_INIT
    #define             CAMEL_UUDECODE_STATE_BEGIN
    #define             CAMEL_UUDECODE_STATE_END
    #define             CAMEL_UUDECODE_STATE_MASK
    time_t              camel_mktime_utc                    (struct tm *tm);
    void                camel_localtime_with_offset         (time_t tt,
                                                             struct tm *tm,
                                                             gint *offset);
    enum                CamelTransferEncoding;
    struct              camel_header_references;
    struct              camel_header_param;
                        CamelContentType;
    struct              camel_header_raw;
                        CamelContentDisposition;
    enum                camel_header_address_t;
    struct              camel_header_address;
    struct              camel_header_newsgroup;
    struct _camel_header_address * camel_header_address_new (void);
    struct _camel_header_address * camel_header_address_new_name
                                                            (const gchar *name,
                                                             const gchar *addr);
    struct _camel_header_address * camel_header_address_new_group
                                                            (const gchar *name);
    void                camel_header_address_ref            (struct _camel_header_address *addrlist);
    void                camel_header_address_unref          (struct _camel_header_address *addrlist);
    void                camel_header_address_set_name       (struct _camel_header_address *addrlist,
                                                             const gchar *name);
    void                camel_header_address_set_addr       (struct _camel_header_address *addrlist,
                                                             const gchar *addr);
    void                camel_header_address_set_members    (struct _camel_header_address *addrlist,
                                                             struct _camel_header_address *group);
    void                camel_header_address_add_member     (struct _camel_header_address *addrlist,
                                                             struct _camel_header_address *member);
    void                camel_header_address_list_append_list
                                                            (struct _camel_header_address **addrlistp,
                                                             struct _camel_header_address **addrs);
    void                camel_header_address_list_append    (struct _camel_header_address **addrlistp,
                                                             struct _camel_header_address *addr);
    void                camel_header_address_list_clear     (struct _camel_header_address **addrlistp);
    struct _camel_header_address * camel_header_address_decode
                                                            (const gchar *in,
                                                             const gchar *charset);
    struct _camel_header_address * camel_header_mailbox_decode
                                                            (const gchar *in,
                                                             const gchar *charset);
    gchar *             camel_header_address_list_encode    (struct _camel_header_address *addrlist);
    gchar *             camel_header_address_list_format    (struct _camel_header_address *addrlist);
    struct _camel_header_param * camel_header_param_list_decode
                                                            (const gchar *in);
    struct _camel_header_param * camel_header_set_param     (struct _camel_header_param **paramsp,
                                                             const gchar *name,
                                                             const gchar *value);
    void                camel_header_param_list_format_append
                                                            (GString *out,
                                                             struct _camel_header_param *params);
    gchar *             camel_header_param_list_format      (struct _camel_header_param *params);
    void                camel_header_param_list_free        (struct _camel_header_param *params);
    CamelContentType *  camel_content_type_new              (const gchar *type,
                                                             const gchar *subtype);
    CamelContentType *  camel_content_type_decode           (const gchar *in);
    void                camel_content_type_unref            (CamelContentType *content_type);
    void                camel_content_type_ref              (CamelContentType *content_type);
    const gchar *       camel_content_type_param            (CamelContentType *content_type,
                                                             const gchar *name);
    void                camel_content_type_set_param        (CamelContentType *content_type,
                                                             const gchar *name,
                                                             const gchar *value);
    gint                camel_content_type_is               (CamelContentType *content_type,
                                                             const gchar *type,
                                                             const gchar *subtype);
    gchar *             camel_content_type_format           (CamelContentType *content_type);
    gchar *             camel_content_type_simple           (CamelContentType *content_type);
    void                camel_content_type_dump             (CamelContentType *content_type);
    CamelContentDisposition * camel_content_disposition_decode
                                                            (const gchar *in);
    void                camel_content_disposition_ref       (CamelContentDisposition *disposition);
    void                camel_content_disposition_unref     (CamelContentDisposition *disposition);
    gchar *             camel_content_disposition_format    (CamelContentDisposition *disposition);
    gchar *             camel_content_transfer_encoding_decode
                                                            (const gchar *in);
    void                camel_header_raw_append             (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             const gchar *value,
                                                             gint offset);
    void                camel_header_raw_append_parse       (struct _camel_header_raw **list,
                                                             const gchar *header,
                                                             gint offset);
    const gchar *       camel_header_raw_find               (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             gint *offset);
    const gchar *       camel_header_raw_find_next          (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             gint *offset,
                                                             const gchar *last);
    void                camel_header_raw_replace            (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             const gchar *value,
                                                             gint offset);
    void                camel_header_raw_remove             (struct _camel_header_raw **list,
                                                             const gchar *name);
    void                camel_header_raw_fold               (struct _camel_header_raw **list);
    void                camel_header_raw_clear              (struct _camel_header_raw **list);
    gchar *             camel_header_raw_check_mailing_list (struct _camel_header_raw **list);
    gchar *             camel_header_address_fold           (const gchar *in,
                                                             gsize headerlen);
    gchar *             camel_header_fold                   (const gchar *in,
                                                             gsize headerlen);
    gchar *             camel_header_unfold                 (const gchar *in);
    gchar *             camel_header_token_decode           (const gchar *in);
    gint                camel_header_decode_int             (const gchar **in);
    gchar *             camel_header_decode_string          (const gchar *in,
                                                             const gchar *default_charset);
    gchar *             camel_header_encode_string          (const guchar *in);
    gchar *             camel_header_format_ctext           (const gchar *in,
                                                             const gchar *default_charset);
    gchar *             camel_header_encode_phrase          (const guchar *in);
    time_t              camel_header_decode_date            (const gchar *str,
                                                             gint *tz_offset);
    gchar *             camel_header_format_date            (time_t date,
                                                             gint tz_offset);
    gchar *             camel_header_msgid_decode           (const gchar *in);
    gchar *             camel_header_contentid_decode       (const gchar *in);
    gchar *             camel_header_msgid_generate         (void);
    struct _camel_header_references * camel_header_references_inreplyto_decode
                                                            (const gchar *in);
    struct _camel_header_references * camel_header_references_decode
                                                            (const gchar *in);
    void                camel_header_references_list_clear  (struct _camel_header_references **list);
    void                camel_header_references_list_append_asis
                                                            (struct _camel_header_references **list,
                                                             gchar *ref);
    gint                camel_header_references_list_size   (struct _camel_header_references **list);
    struct _camel_header_references * camel_header_references_dup
                                                            (const struct _camel_header_references *list);
    gchar *             camel_header_location_decode        (const gchar *in);
    struct _camel_header_newsgroup * camel_header_newsgroups_decode
                                                            (const gchar *in);
    void                camel_header_newsgroups_free        (struct _camel_header_newsgroup *ng);
    const gchar *       camel_transfer_encoding_to_string   (CamelTransferEncoding encoding);
    CamelTransferEncoding camel_transfer_encoding_from_string
                                                            (const gchar *string);
    void                camel_header_mime_decode            (const gchar *in,
                                                             gint *maj,
                                                             gint *min);
    gsize               camel_uudecode_step                 (guchar *in,
                                                             gsize inlen,
                                                             guchar *out,
                                                             gint *state,
                                                             guint32 *save);
    gsize               camel_uuencode_step                 (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             guchar *uubuf,
                                                             gint *state,
                                                             guint32 *save);
    gsize               camel_uuencode_close                (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             guchar *uubuf,
                                                             gint *state,
                                                             guint32 *save);
    gsize               camel_quoted_decode_step            (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             gint *savestate,
                                                             gint *saveme);
    gsize               camel_quoted_encode_step            (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             gint *state,
                                                             gint *save);
    gsize               camel_quoted_encode_close           (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             gint *state,
                                                             gint *save);
    #define             camel_mime_is_ctrl                  (x)
    #define             camel_mime_is_lwsp                  (x)
    #define             camel_mime_is_tspecial              (x)
    #define             camel_mime_is_type                  (x,
                                                             t)
    #define             camel_mime_is_ttoken                (x)
    #define             camel_mime_is_atom                  (x)
    #define             camel_mime_is_dtext                 (x)
    #define             camel_mime_is_fieldname             (x)
    #define             camel_mime_is_qpsafe                (x)
    #define             camel_mime_is_especial              (x)
    #define             camel_mime_is_psafe                 (x)
    #define             camel_mime_is_attrchar              (x)

## Description

## Details

### CAMEL_FOLD_SIZE

    #define CAMEL_FOLD_SIZE (77)

### CAMEL_FOLD_MAX_SIZE

    #define CAMEL_FOLD_MAX_SIZE (998)

### CAMEL_UUDECODE_STATE_INIT

    #define CAMEL_UUDECODE_STATE_INIT   (0)

### CAMEL_UUDECODE_STATE_BEGIN

    #define CAMEL_UUDECODE_STATE_BEGIN  (1 << 16)

### CAMEL_UUDECODE_STATE_END

    #define CAMEL_UUDECODE_STATE_END    (1 << 17)

### CAMEL_UUDECODE_STATE_MASK

    #define CAMEL_UUDECODE_STATE_MASK   (CAMEL_UUDECODE_STATE_BEGIN | CAMEL_UUDECODE_STATE_END)

### camel_mktime_utc ()

    time_t              camel_mktime_utc                    (struct tm *tm);

Like mktime(3), but assumes UTC instead of local timezone.

`tm` : | the tm to convert to a calendar time representation
Returns : | the calendar time representation of `tm`

Since 3.4

### camel_localtime_with_offset ()

    void                camel_localtime_with_offset         (time_t tt,
                                                             struct tm *tm,
                                                             gint *offset);

Converts the calendar time representation `tt` to a broken-down time representation, stored in `tm`, and provides the offset in seconds from UTC time, stored in `offset`.

`tt` : | the time_t to convert
`tm` : | the tm to store the result in
`offset` : | the gint to store the offset in

### enum CamelTransferEncoding

    typedef enum {
    	CAMEL_TRANSFER_ENCODING_DEFAULT,
    	CAMEL_TRANSFER_ENCODING_7BIT,
    	CAMEL_TRANSFER_ENCODING_8BIT,
    	CAMEL_TRANSFER_ENCODING_BASE64,
    	CAMEL_TRANSFER_ENCODING_QUOTEDPRINTABLE,
    	CAMEL_TRANSFER_ENCODING_BINARY,
    	CAMEL_TRANSFER_ENCODING_UUENCODE,
    	CAMEL_TRANSFER_NUM_ENCODINGS
    } CamelTransferEncoding;

### struct camel_header_references

    struct camel_header_references {
    	struct _camel_header_references *next;
    	gchar *id;
    };

### struct camel_header_param

    struct camel_header_param {
    	struct _camel_header_param *next;
    	gchar *name;
    	gchar *value;
    };

Searches `params` for a param named `name` and gets the value.

struct _camel_header_param *`next`; |
gchar *`name`; | name of param to find
gchar *`value`; |

### CamelContentType

    typedef struct {
    	gchar *type;
    	gchar *subtype;
    	struct _camel_header_param *params;
    	guint refcount;
    } CamelContentType;

### struct camel_header_raw

    struct camel_header_raw {
    	struct _camel_header_raw *next;
    	gchar *name;
    	gchar *value;
    	gint offset;		/* in file, if known */
    };

### CamelContentDisposition

    typedef struct {
    	gchar *disposition;
    	struct _camel_header_param *params;
    	guint refcount;
    } CamelContentDisposition;

### enum camel_header_address_t

    typedef enum {
    	CAMEL_HEADER_ADDRESS_NONE, /* uninitialised */
    	CAMEL_HEADER_ADDRESS_NAME,
    	CAMEL_HEADER_ADDRESS_GROUP
    } camel_header_address_t;

### struct camel_header_address

    struct camel_header_address {
    	struct _camel_header_address *next;
    	camel_header_address_t type;
    	gchar *name;
    	union {
    		gchar *addr;
    		struct _camel_header_address *members;
    	} v;
    	guint refcount;
    };

### struct camel_header_newsgroup

    struct camel_header_newsgroup {
    	struct _camel_header_newsgroup *next;

    	gchar *newsgroup;
    };

### camel_header_address_new ()

    struct _camel_header_address * camel_header_address_new (void);

### camel_header_address_new_name ()

    struct _camel_header_address * camel_header_address_new_name
                                                            (const gchar *name,
                                                             const gchar *addr);

### camel_header_address_new_group ()

    struct _camel_header_address * camel_header_address_new_group
                                                            (const gchar *name);

### camel_header_address_ref ()

    void                camel_header_address_ref            (struct _camel_header_address *addrlist);

### camel_header_address_unref ()

    void                camel_header_address_unref          (struct _camel_header_address *addrlist);

### camel_header_address_set_name ()

    void                camel_header_address_set_name       (struct _camel_header_address *addrlist,
                                                             const gchar *name);

### camel_header_address_set_addr ()

    void                camel_header_address_set_addr       (struct _camel_header_address *addrlist,
                                                             const gchar *addr);

### camel_header_address_set_members ()

    void                camel_header_address_set_members    (struct _camel_header_address *addrlist,
                                                             struct _camel_header_address *group);

### camel_header_address_add_member ()

    void                camel_header_address_add_member     (struct _camel_header_address *addrlist,
                                                             struct _camel_header_address *member);

### camel_header_address_list_append_list ()

    void                camel_header_address_list_append_list
                                                            (struct _camel_header_address **addrlistp,
                                                             struct _camel_header_address **addrs);

### camel_header_address_list_append ()

    void                camel_header_address_list_append    (struct _camel_header_address **addrlistp,
                                                             struct _camel_header_address *addr);

### camel_header_address_list_clear ()

    void                camel_header_address_list_clear     (struct _camel_header_address **addrlistp);

### camel_header_address_decode ()

    struct _camel_header_address * camel_header_address_decode
                                                            (const gchar *in,
                                                             const gchar *charset);

### camel_header_mailbox_decode ()

    struct _camel_header_address * camel_header_mailbox_decode
                                                            (const gchar *in,
                                                             const gchar *charset);

### camel_header_address_list_encode ()

    gchar *             camel_header_address_list_encode    (struct _camel_header_address *addrlist);

### camel_header_address_list_format ()

    gchar *             camel_header_address_list_format    (struct _camel_header_address *addrlist);

### camel_header_param_list_decode ()

    struct _camel_header_param * camel_header_param_list_decode
                                                            (const gchar *in);

### camel_header_set_param ()

    struct _camel_header_param * camel_header_set_param     (struct _camel_header_param **paramsp,
                                                             const gchar *name,
                                                             const gchar *value);

Set a parameter in the list.

`paramsp` : | poinetr to a list of params
`name` : | name of param to set
`value` : | value to set
Returns : | the set param

### camel_header_param_list_format_append ()

    void                camel_header_param_list_format_append
                                                            (GString *out,
                                                             struct _camel_header_param *params);

### camel_header_param_list_format ()

    gchar *             camel_header_param_list_format      (struct _camel_header_param *params);

### camel_header_param_list_free ()

    void                camel_header_param_list_free        (struct _camel_header_param *params);

Free the list of params.

`params` : | a list of params

### camel_content_type_new ()

    CamelContentType *  camel_content_type_new              (const gchar *type,
                                                             const gchar *subtype);

Create a new CamelContentType.

`type` : | the major type of the new content-type
`subtype` : | the subtype
Returns : | the new CamelContentType

### camel_content_type_decode ()

    CamelContentType *  camel_content_type_decode           (const gchar *in);

### camel_content_type_unref ()

    void                camel_content_type_unref            (CamelContentType *content_type);

Unrefs, and potentially frees, the content type.

`content_type` : | a CamelContentType

### camel_content_type_ref ()

    void                camel_content_type_ref              (CamelContentType *content_type);

Refs the content type.

`content_type` : | a CamelContentType

### camel_content_type_param ()

    const gchar *       camel_content_type_param            (CamelContentType *content_type,
                                                             const gchar *name);

Searches the params on s CamelContentType for a param named `name` and gets the value.

`content_type` : | a CamelContentType
`name` : | name of param to find
Returns : | the value of the `name` param

### camel_content_type_set_param ()

    void                camel_content_type_set_param        (CamelContentType *content_type,
                                                             const gchar *name,
                                                             const gchar *value);

Set a parameter on `content_type`.

`content_type` : | a CamelContentType
`name` : | name of param to set
`value` : | value of param to set

### camel_content_type_is ()

    gint                camel_content_type_is               (CamelContentType *content_type,
                                                             const gchar *type,
                                                             const gchar *subtype);

The subtype of "*" will match any subtype. If `ct` is `NULL`, then it will match the type "text/plain".

`content_type` : | A content type specifier, or `NULL`.
`type` : | A type to check against.
`subtype` : | A subtype to check against, or "*" to match any subtype.
Returns : | `TRUE` if the content type `ct` is of type `type`/`subtype` or `FALSE` otherwise

### camel_content_type_format ()

    gchar *             camel_content_type_format           (CamelContentType *content_type);

### camel_content_type_simple ()

    gchar *             camel_content_type_simple           (CamelContentType *content_type);

### camel_content_type_dump ()

    void                camel_content_type_dump             (CamelContentType *content_type);

### camel_content_disposition_decode ()

    CamelContentDisposition * camel_content_disposition_decode
                                                            (const gchar *in);

### camel_content_disposition_ref ()

    void                camel_content_disposition_ref       (CamelContentDisposition *disposition);

### camel_content_disposition_unref ()

    void                camel_content_disposition_unref     (CamelContentDisposition *disposition);

### camel_content_disposition_format ()

    gchar *             camel_content_disposition_format    (CamelContentDisposition *disposition);

### camel_content_transfer_encoding_decode ()

    gchar *             camel_content_transfer_encoding_decode
                                                            (const gchar *in);

### camel_header_raw_append ()

    void                camel_header_raw_append             (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             const gchar *value,
                                                             gint offset);

### camel_header_raw_append_parse ()

    void                camel_header_raw_append_parse       (struct _camel_header_raw **list,
                                                             const gchar *header,
                                                             gint offset);

### camel_header_raw_find ()

    const gchar *       camel_header_raw_find               (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             gint *offset);

### camel_header_raw_find_next ()

    const gchar *       camel_header_raw_find_next          (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             gint *offset,
                                                             const gchar *last);

### camel_header_raw_replace ()

    void                camel_header_raw_replace            (struct _camel_header_raw **list,
                                                             const gchar *name,
                                                             const gchar *value,
                                                             gint offset);

### camel_header_raw_remove ()

    void                camel_header_raw_remove             (struct _camel_header_raw **list,
                                                             const gchar *name);

### camel_header_raw_fold ()

    void                camel_header_raw_fold               (struct _camel_header_raw **list);

### camel_header_raw_clear ()

    void                camel_header_raw_clear              (struct _camel_header_raw **list);

### camel_header_raw_check_mailing_list ()

    gchar *             camel_header_raw_check_mailing_list (struct _camel_header_raw **list);

### camel_header_address_fold ()

    gchar *             camel_header_address_fold           (const gchar *in,
                                                             gsize headerlen);

### camel_header_fold ()

    gchar *             camel_header_fold                   (const gchar *in,
                                                             gsize headerlen);

### camel_header_unfold ()

    gchar *             camel_header_unfold                 (const gchar *in);

### camel_header_token_decode ()

    gchar *             camel_header_token_decode           (const gchar *in);

Gets the first token in the string according to the rules of rfc0822.

`in` : | input string
Returns : | a new string containing the first token in `in`

### camel_header_decode_int ()

    gint                camel_header_decode_int             (const gchar **in);

Extracts an integer token from `in` and updates the pointer to point to after the end of the integer token (sort of like strtol).

`in` : | pointer to input string
Returns : | the gint value

### camel_header_decode_string ()

    gchar *             camel_header_decode_string          (const gchar *in,
                                                             const gchar *default_charset);

Decodes rfc2047 encoded-word tokens

`in` : | input header value string
`default_charset` : | default charset to use if improperly encoded
Returns : | a string containing the UTF-8 version of the decoded header value

### camel_header_encode_string ()

    gchar *             camel_header_encode_string          (const guchar *in);

Encodes a 'text' header according to the rules of rfc2047.

`in` : | input string
Returns : | the rfc2047 encoded header

### camel_header_format_ctext ()

    gchar *             camel_header_format_ctext           (const gchar *in,
                                                             const gchar *default_charset);

Decodes a header which contains rfc2047 encoded-word tokens that may or may not be within a comment.

`in` : | input header value string
`default_charset` : | default charset to use if improperly encoded
Returns : | a string containing the UTF-8 version of the decoded header value

### camel_header_encode_phrase ()

    gchar *             camel_header_encode_phrase          (const guchar *in);

Encodes a 'phrase' header according to the rules in rfc2047.

`in` : | header to encode
Returns : | the encoded 'phrase'

### camel_header_decode_date ()

    time_t              camel_header_decode_date            (const gchar *str,
                                                             gint *tz_offset);

Decodes the rfc822 date string and saves the GMT offset into `tz_offset` if non-NULL.

`str` : | input date string
`tz_offset` : | timezone offset
Returns : | the time_t representation of the date string specified by `str` or (time_t) `0` on error. If `tz_offset` is non-NULL, the value of the timezone offset will be stored.

### camel_header_format_date ()

    gchar *             camel_header_format_date            (time_t date,
                                                             gint tz_offset);

Allocates a string buffer containing the rfc822 formatted date string represented by `time` and `tz_offset`.

`date` : | time_t date representation
`tz_offset` : | Timezone offset
Returns : | a valid string representation of the date.

### camel_header_msgid_decode ()

    gchar *             camel_header_msgid_decode           (const gchar *in);

Extract a message-id token from `in`.

`in` : | input string
Returns : | the msg-id

### camel_header_contentid_decode ()

    gchar *             camel_header_contentid_decode       (const gchar *in);

Extract a content-id from `in`.

`in` : | input string
Returns : | the extracted content-id

### camel_header_msgid_generate ()

    gchar *             camel_header_msgid_generate         (void);

### camel_header_references_inreplyto_decode ()

    struct _camel_header_references * camel_header_references_inreplyto_decode
                                                            (const gchar *in);

### camel_header_references_decode ()

    struct _camel_header_references * camel_header_references_decode
                                                            (const gchar *in);

### camel_header_references_list_clear ()

    void                camel_header_references_list_clear  (struct _camel_header_references **list);

### camel_header_references_list_append_asis ()

    void                camel_header_references_list_append_asis
                                                            (struct _camel_header_references **list,
                                                             gchar *ref);

### camel_header_references_list_size ()

    gint                camel_header_references_list_size   (struct _camel_header_references **list);

### camel_header_references_dup ()

    struct _camel_header_references * camel_header_references_dup
                                                            (const struct _camel_header_references *list);

### camel_header_location_decode ()

    gchar *             camel_header_location_decode        (const gchar *in);

### camel_header_newsgroups_decode ()

    struct _camel_header_newsgroup * camel_header_newsgroups_decode
                                                            (const gchar *in);

### camel_header_newsgroups_free ()

    void                camel_header_newsgroups_free        (struct _camel_header_newsgroup *ng);

### camel_transfer_encoding_to_string ()

    const gchar *       camel_transfer_encoding_to_string   (CamelTransferEncoding encoding);

### camel_transfer_encoding_from_string ()

    CamelTransferEncoding camel_transfer_encoding_from_string
                                                            (const gchar *string);

### camel_header_mime_decode ()

    void                camel_header_mime_decode            (const gchar *in,
                                                             gint *maj,
                                                             gint *min);

### camel_uudecode_step ()

    gsize               camel_uudecode_step                 (guchar *in,
                                                             gsize inlen,
                                                             guchar *out,
                                                             gint *state,
                                                             guint32 *save);

Uudecodes a chunk of data. Performs a 'decode step' on a chunk of uuencoded data. Assumes the "begin mode filename" line has been stripped off.

`in` : | input stream
`inlen` : | max length of data to decode
`out` : | output stream
`state` : | holds the number of bits that are stored in `save`
`save` : | leftover bits that have not yet been decoded
Returns : | the number of bytes decoded

### camel_uuencode_step ()

    gsize               camel_uuencode_step                 (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             guchar *uubuf,
                                                             gint *state,
                                                             guint32 *save);

Uuencodes a chunk of data. Performs an 'encode step', only encodes blocks of 45 characters to the output at a time, saves left-over state in `uubuf`, `state` and `save` (initialize to 0 on first invocation).

`in` : | input stream
`len` : | input stream length
`out` : | output stream
`uubuf` : | temporary buffer of 60 bytes
`state` : | holds the number of bits that are stored in `save`
`save` : | leftover bits that have not yet been encoded
Returns : | the number of bytes encoded

### camel_uuencode_close ()

    gsize               camel_uuencode_close                (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             guchar *uubuf,
                                                             gint *state,
                                                             guint32 *save);

Uuencodes a chunk of data. Call this when finished encoding data with `camel_uuencode_step()` to flush off the last little bit.

`in` : | input stream
`len` : | input stream length
`out` : | output stream
`uubuf` : | temporary buffer of 60 bytes
`state` : | holds the number of bits that are stored in `save`
`save` : | leftover bits that have not yet been encoded
Returns : | the number of bytes encoded

### camel_quoted_decode_step ()

    gsize               camel_quoted_decode_step            (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             gint *savestate,
                                                             gint *saveme);

Decodes a block of quoted-printable encoded data. Performs a 'decode step' on a chunk of QP encoded data.

`in` : | input stream
`len` : | max length of data to decode
`out` : | output stream
`savestate` : | holds the number of bits that are stored in `save`
`saveme` : | leftover bits that have not yet been decoded
Returns : | the number of bytes decoded

### camel_quoted_encode_step ()

    gsize               camel_quoted_encode_step            (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             gint *state,
                                                             gint *save);

Quoted-printable encodes a block of text. Performs an 'encode step', saves left-over state in state and save (initialise to -1 on first invocation).

`in` : | input stream
`len` : | length of the input
`out` : | output string
`state` : | holds the number of bits that are stored in `save`
`save` : | leftover bits that have not yet been encoded
Returns : | the number of bytes encoded

### camel_quoted_encode_close ()

    gsize               camel_quoted_encode_close           (guchar *in,
                                                             gsize len,
                                                             guchar *out,
                                                             gint *state,
                                                             gint *save);

Quoted-printable encodes a block of text. Call this when finished encoding data with `camel_quoted_encode_step()` to flush off the last little bit.

`in` : | input stream
`len` : | length of the input
`out` : | output string
`state` : | holds the number of bits that are stored in `save`
`save` : | leftover bits that have not yet been encoded
Returns : | the number of bytes encoded

### camel_mime_is_ctrl()

    #define camel_mime_is_ctrl(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_CTRL) != 0)

### camel_mime_is_lwsp()

    #define camel_mime_is_lwsp(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_LWSP) != 0)

### camel_mime_is_tspecial()

    #define camel_mime_is_tspecial(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_TSPECIAL) != 0)

### camel_mime_is_type()

    #define camel_mime_is_type(x, t) ((camel_mime_special_table[(guchar)(x)] & (t)) != 0)

### camel_mime_is_ttoken()

    #define camel_mime_is_ttoken(x) ((camel_mime_special_table[(guchar)(x)] & (CAMEL_MIME_IS_TSPECIAL|CAMEL_MIME_IS_LWSP|CAMEL_MIME_IS_CTRL)) == 0)

### camel_mime_is_atom()

    #define camel_mime_is_atom(x) ((camel_mime_special_table[(guchar)(x)] & (CAMEL_MIME_IS_SPECIAL|CAMEL_MIME_IS_SPACE|CAMEL_MIME_IS_CTRL)) == 0)

### camel_mime_is_dtext()

    #define camel_mime_is_dtext(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_DSPECIAL) == 0)

### camel_mime_is_fieldname()

    #define camel_mime_is_fieldname(x) ((camel_mime_special_table[(guchar)(x)] & (CAMEL_MIME_IS_CTRL|CAMEL_MIME_IS_SPACE)) == 0)

### camel_mime_is_qpsafe()

    #define camel_mime_is_qpsafe(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_QPSAFE) != 0)

### camel_mime_is_especial()

    #define camel_mime_is_especial(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_ESPECIAL) != 0)

### camel_mime_is_psafe()

    #define camel_mime_is_psafe(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_PSAFE) != 0)

### camel_mime_is_attrchar()

    #define camel_mime_is_attrchar(x) ((camel_mime_special_table[(guchar)(x)] & CAMEL_MIME_IS_ATTRCHAR) != 0)