diff options
Diffstat (limited to 'camel/providers/mbox/camel-mbox-parser.c')
| -rw-r--r-- | camel/providers/mbox/camel-mbox-parser.c | 123 |
1 files changed, 104 insertions, 19 deletions
diff --git a/camel/providers/mbox/camel-mbox-parser.c b/camel/providers/mbox/camel-mbox-parser.c index 1e9b2abe3d..2509a5a49a 100644 --- a/camel/providers/mbox/camel-mbox-parser.c +++ b/camel/providers/mbox/camel-mbox-parser.c @@ -106,6 +106,16 @@ clear_message_info (CamelMboxParserMessageInfo *preparsing_info) +/** + * new_parser: create a new parser object + * @fd: file descriptor opened on the mbox file + * @message_delimiter: the string that announce the start of a new message. + * + * Create a new parser object. This object is the place where are + * stored all the information concerning the parsing process. + * + * Return value: The newly created parser object. + **/ static CamelMboxPreParser * new_parser (int fd, const gchar *message_delimiter) @@ -134,10 +144,18 @@ new_parser (int fd, +/** + * parser_free: free the parser object + * @parser: the parser objet to free. + * + * it is important to notice that all structures allocated + * in new_parser () are freed ** EXCEPT ** the message + * information array, i.e. the preparsed_messages + * field. + **/ void parser_free (CamelMboxPreParser *parser) { - g_free (parser->buffer); g_free (parser->message_delimiter); g_string_free (parser->tmp_string, TRUE); @@ -149,7 +167,14 @@ parser_free (CamelMboxPreParser *parser) /* ** handle exceptions here */ -/* read the first chunk of data in the buffer */ +/** + * initialize_buffer: read the first chunk of data in the buffer + * @parser: parser object to fill + * @first_position: position to start the read at + * + * read the first chunk of data from the mbox file. + * + **/ static void initialize_buffer (CamelMboxPreParser *parser, guint first_position) @@ -177,7 +202,8 @@ initialize_buffer (CamelMboxPreParser *parser, /* ** check for an error here */ parser->last_position = buf_nb_read; - if (buf_nb_read < (MBOX_PARSER_BUF_SIZE - parser->left_chunk_size)) + + if (buf_nb_read == 0) parser->eof =TRUE; parser->current_position = parser->left_chunk_size; @@ -186,13 +212,24 @@ initialize_buffer (CamelMboxPreParser *parser, -/* read next data in the mbox file */ +/** + * read_next_buffer_chunk: read the next chunk of data in the mbox file + * @parser: parser object + * + * read the next chunk of data in the mbox file. + * Routine copies the last part of the buffer at + * the begining are concatenate the read data to + * it. This allows strcmp of keywords in the buffer, + * until the last postion. That means you can + * do a strcmp (buffer, keyword) for any of the + * keyword defined at the begining of this file. + * + **/ static void read_next_buffer_chunk (CamelMboxPreParser *parser) { gint buf_nb_read; - g_assert (parser); /* read the next chunk of data in the folder file : */ @@ -210,9 +247,9 @@ read_next_buffer_chunk (CamelMboxPreParser *parser) } while ((buf_nb_read == -1) && (errno == EINTR)); /* ** check for an error here */ - parser->last_position = buf_nb_read; - if (buf_nb_read < (MBOX_PARSER_BUF_SIZE - parser->left_chunk_size)) + + if (buf_nb_read == 0) parser->eof =TRUE; parser->current_position = 0; @@ -221,7 +258,15 @@ read_next_buffer_chunk (CamelMboxPreParser *parser) -/* read next char in the buffer */ +/** + * goto_next_char: go one postion forward in the buffer + * @parser: parser object + * + * goto one position forward in the buffer. If necessary, + * read the next chunk of data in the file, possibly + * raising the parser->eof flag. + * + **/ static void goto_next_char (CamelMboxPreParser *parser) { @@ -238,7 +283,13 @@ goto_next_char (CamelMboxPreParser *parser) -/* advance n_chars in the buffer */ + +/** + * advance_n_chars: go n positions forward in the buffer. + * @parser: parser object + * @n: number of characters to advance. + * + **/ static void advance_n_chars (CamelMboxPreParser *parser, guint n) { @@ -271,6 +322,17 @@ advance_n_chars (CamelMboxPreParser *parser, guint n) store the previous message information and clean the temporary structure used to store the informations */ + + +/** + * new_message_detected: routine to call when a new message has been detected + * @parser: parser object. + * + * this routine must be called when the keyword determining the + * begining of a new message has been detected. It pushes the + * information fetched for the last message into the message information + * array. Also, it gets the parser to the end of the line. + **/ static void new_message_detected (CamelMboxPreParser *parser) { @@ -291,12 +353,13 @@ new_message_detected (CamelMboxPreParser *parser) /* go to the end of the line */ do { + c = parser->buffer[parser->current_position]; goto_next_char (parser); - //printf ("%c", c); + } while (c != '\n'); - //printf ("\n"); + /* save message position in the message information structure */ (parser->current_message_info).message_position = parser->real_position; parser->is_pending_message = TRUE; @@ -308,10 +371,25 @@ new_message_detected (CamelMboxPreParser *parser) -/* read a header value and put it in the string pointer - to by header_content. This routine stops on a - the first character after the last newline of the - header content. + +/** + * read_header: read the header content contained after the current position. + * @parser: the parser object. + * @header_content: a pointer on a (char *) variable to feed with the obtained header string. + * + * This routine must be called when the parser has detected a header + * and it wants the header content to be stored. The parser current position + * must EXACTELY be located at the begining of the header content line. + * For example, if the file contains the line : + * from:Bertrand Guiheneuf <bertrand@helixcode.com> + * + * When this routine is called, the parser must be located + * on the "B" of "Bertrand". + * + * When this routine returns, the parser is located just + * after the "\n" at the end of the header content. + * + **/ */ static void read_header (CamelMboxPreParser *parser, gchar **header_content) @@ -377,10 +455,17 @@ read_header (CamelMboxPreParser *parser, gchar **header_content) -/* read the begining of the message and put it in the message - summary field. If we the search ended on a newline, returns - %TRUE, else returns %FALSE -*/ + +/** + * read_message_begining: read the first characters of a message body + * @parser: parser object + * @message_summary: a pointer on a (gchar *) variable where the obtained string will be stored. + * + * Read the first lines of a message. When calling this routine, the + * parser must be located at the begining of the message body. + * + * Return value: if the parsing inside this routine last read a newline, then %TRUE is returned, otherwise %FALSE is returned + **/ static gboolean read_message_begining (CamelMboxPreParser *parser, gchar **message_summary) { |