* add mu_msg_gmime_get_summary, some cosmetics

mu_msg_gmime_get_summary returns the first /n/ lines of the message, with
  newlines removed. maybe this would need filling (word wrap), but that's not
  implemented yet.
This commit is contained in:
djcb 2010-08-15 14:55:25 +03:00
parent 2e6685bdeb
commit 9e24a093a7
2 changed files with 106 additions and 28 deletions

View File

@ -1,5 +1,5 @@
/*
** Copyright (C) 2010 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
** Copyright (C) 2008-2010 Dirk-Jan C. Binnema <djcb@djcbsoftware.nl>
**
** This program is free software; you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
@ -34,6 +34,8 @@ enum _StringFields {
HTML_FIELD = 0, /* body as HTML */
TEXT_FIELD, /* body as plain text */
SUMMARY_FIELD, /* body summary */
TO_FIELD, /* To: */
CC_FIELD, /* Cc: */
@ -107,6 +109,7 @@ init_file_metadata (MuMsgGMime* msg, const char* path, const gchar* mdir)
msg->_size = statbuf.st_size;
msg->_fields[PATH_FIELD] = strdup (path);
/* FIXME: maybe try to derive it from the path? */
if (mdir)
msg->_fields[MDIR_FIELD] = strdup (mdir);
@ -710,6 +713,64 @@ mu_msg_gmime_get_body_text (MuMsgGMime *msg)
return msg->_fields[TEXT_FIELD] = get_body (msg, FALSE);
}
/* maybe move to str functions file? */
static char*
summarize (const char* str, size_t max_lines)
{
char *summary;
size_t nl_seen;
int i;
if (!str || max_lines == 0)
return NULL;
/* len for summary <= original len */
summary = g_new (gchar, strlen(str) + 1);
/* copy the string up to max_lines lines, replace CR/LF/tab with
* single space */
for (i = 0, nl_seen = 0; nl_seen < max_lines && str[i] != '\0'; ++i) {
switch (str[i]) {
case '\n':
++nl_seen;
summary[i] = ' ';
break;
case '\r':
case '\t':
summary[i] = ' ';
break;
default:
summary[i] = str[i];
}
}
/* FIXME: word-wrap the string */
summary[i] = '\0';
return summary;
}
const char*
mu_msg_gmime_get_summary (MuMsgGMime *msg, size_t max_lines)
{
const char *body;
g_return_val_if_fail (msg, NULL);
g_return_val_if_fail (max_lines > 0, NULL);
/* do we have a summary cached already? */
if (msg->_fields[SUMMARY_FIELD])
return msg->_fields[SUMMARY_FIELD];
/* nope; calculate it */
body = mu_msg_gmime_get_body_text (msg);
if (!body)
return NULL; /* there was no text body */
return msg->_fields[SUMMARY_FIELD] = summarize (body, max_lines);
}
const char*
mu_msg_gmime_get_field_string (MuMsgGMime *msg, const MuMsgField* field)
@ -796,8 +857,7 @@ address_list_foreach (InternetAddressList *addrlist,
MuMsgContact contact;
if (!fill_contact(&contact,
internet_address_list_get_address (addrlist, i),
ctype))
{
ctype)) {
MU_WRITE_LOG ("ignoring contact");
continue;
}

View File

@ -27,7 +27,7 @@ G_BEGIN_DECLS
struct _MuMsgGMime;
typedef struct _MuMsgGMime MuMsgGMime;
/**
/**
* initialize the message parsing system; this function must be called
* before doing any message parsing (ie., any of the other
* mu_msg_gmime functions). when done with the message parsing system,
@ -36,7 +36,7 @@ typedef struct _MuMsgGMime MuMsgGMime;
*/
void mu_msg_gmime_init (void);
/**
/**
* uninitialize the messge parsing system that has previously been
* initialized with mu_msg_init. not calling mu_msg_uninit after
* mu_msg_init has been called will lead to memory leakage. Note:
@ -46,14 +46,16 @@ void mu_msg_gmime_init (void);
void mu_msg_gmime_uninit (void);
/**
/**
* create a new MuMsgGMime* instance which parses a message and provides
* read access to its properties; call mu_msg_destroy when done with
* done with it.
* read access to its properties; call mu_msg_destroy when done with it.
*
* @param path full path to an email message file
*
* @param mdir the maildir for this message; ie, if the path is
* ~/Maildir/foo/bar/cur/msg, the maildir would be foo/bar
* ~/Maildir/foo/bar/cur/msg, the maildir would be foo/bar; you can
* pass NULL for this parameter, in which case some maildir-specific
* information is not available.
*
* @return a new MuMsgGMime instance or NULL in case of error
*/
@ -61,7 +63,7 @@ MuMsgGMime* mu_msg_gmime_new (const char* filepath,
const char *maildir);
/**
/**
* destroy a MuMsgGMime* instance; call this function when done with
* a MuMsgGMime
*
@ -71,7 +73,7 @@ void mu_msg_gmime_destroy (MuMsgGMime *msg);
/**
/**
* get the plain text body of this message
*
* @param msg a valid MuMsgGMime* instance
@ -83,7 +85,7 @@ void mu_msg_gmime_destroy (MuMsgGMime *msg);
const char* mu_msg_gmime_get_body_text (MuMsgGMime *msg);
/**
/**
* get the html body of this message
*
* @param msg a valid MuMsgGMime* instance
@ -94,7 +96,23 @@ const char* mu_msg_gmime_get_body_text (MuMsgGMime *msg);
const char* mu_msg_gmime_get_body_html (MuMsgGMime *msg);
/**
/**
* get a summary of the body of this message; a summary takes up to
* the first @max_lines from the message, and replaces newlines
* etc. with single whitespace characters. This only works if there's
* a text-body for the message
*
* @param msg a valid MuMsgGMime* instance
* @param max_lines the max number of lines to summarize
*
* @return the summary of the message or NULL in case of error or if
* there is no such body. the returned string should *not* be modified
* or freed. When called multiple times, the function will always
* return the same summary, regardless of a different max_lines value.
*/
const char* mu_msg_gmime_get_summary (MuMsgGMime *msg, size_t max_lines);
/**
* get the sender (From:) of this message
*
* @param msg a valid MuMsgGMime* instance
@ -105,7 +123,7 @@ const char* mu_msg_gmime_get_body_html (MuMsgGMime *msg);
const char* mu_msg_gmime_get_from (MuMsgGMime *msg);
/**
/**
* get the recipients (To:) of this message
*
* @param msg a valid MuMsgGMime* instance
@ -116,7 +134,7 @@ const char* mu_msg_gmime_get_from (MuMsgGMime *msg);
const char* mu_msg_gmime_get_to (MuMsgGMime *msg);
/**
/**
* get the carbon-copy recipients (Cc:) of this message
*
* @param msg a valid MuMsgGMime* instance
@ -127,7 +145,7 @@ const char* mu_msg_gmime_get_to (MuMsgGMime *msg);
*/
const char* mu_msg_gmime_get_cc (MuMsgGMime *msg);
/**
/**
* get the file system path of this message
*
* @param msg a valid MuMsgGMime* instance
@ -138,7 +156,7 @@ const char* mu_msg_gmime_get_cc (MuMsgGMime *msg);
const char* mu_msg_gmime_get_path (MuMsgGMime *msg);
/**
/**
* get the maildir this message lives in; ie, if the path is
* ~/Maildir/foo/bar/cur/msg, the maildir would be foo/bar
*
@ -150,7 +168,7 @@ const char* mu_msg_gmime_get_path (MuMsgGMime *msg);
const char* mu_msg_gmime_get_maildir (MuMsgGMime *msg);
/**
/**
* get the subject of this message
*
* @param msg a valid MuMsgGMime* instance
@ -160,7 +178,7 @@ const char* mu_msg_gmime_get_maildir (MuMsgGMime *msg);
*/
const char* mu_msg_gmime_get_subject (MuMsgGMime *msg);
/**
/**
* get the Message-Id of this message
*
* @param msg a valid MuMsgGMime* instance
@ -171,7 +189,7 @@ const char* mu_msg_gmime_get_subject (MuMsgGMime *msg);
const char* mu_msg_gmime_get_msgid (MuMsgGMime *msg);
/**
/**
* get any arbitrary header from this message
*
* @param msg a valid MuMsgGMime* instance
@ -185,7 +203,7 @@ const char* mu_msg_gmime_get_header (MuMsgGMime *msg,
/**
/**
* get the message date/time (the Date: field) as time_t, using UTC
*
* @param msg a valid MuMsgGMime* instance
@ -195,7 +213,7 @@ const char* mu_msg_gmime_get_header (MuMsgGMime *msg,
*/
time_t mu_msg_gmime_get_date (MuMsgGMime *msg);
/**
/**
* get the flags for this message
*
* @param msg valid MuMsgGMime* instance
@ -206,7 +224,7 @@ time_t mu_msg_gmime_get_date (MuMsgGMime *msg);
MuMsgFlags mu_msg_gmime_get_flags (MuMsgGMime *msg);
/**
/**
* get the file size in bytes of this message
*
* @param msg a valid MuMsgGMime* instance
@ -216,7 +234,7 @@ MuMsgFlags mu_msg_gmime_get_flags (MuMsgGMime *msg);
size_t mu_msg_gmime_get_size (MuMsgGMime *msg);
/**
/**
* get some field value as string
*
* @param msg a valid MuMsgGmime instance
@ -227,7 +245,7 @@ size_t mu_msg_gmime_get_size (MuMsgGMime *msg);
const char* mu_msg_gmime_get_field_string (MuMsgGMime *msg,
const MuMsgField* field);
/**
/**
* get some field value as string
*
* @param msg a valid MuMsgGmime instance
@ -238,7 +256,7 @@ const char* mu_msg_gmime_get_field_string (MuMsgGMime *msg,
gint64 mu_msg_gmime_get_field_numeric (MuMsgGMime *msg,
const MuMsgField* field);
/**
/**
* get the message priority for this message
* (MU_MSG_PRIORITY_LOW, MU_MSG_PRIORITY_NORMAL or MU_MSG_PRIORITY_HIGH)
* the X-Priority, X-MSMailPriority, Importance and Precedence header are
@ -251,7 +269,7 @@ gint64 mu_msg_gmime_get_field_numeric (MuMsgGMime *msg,
*/
MuMsgPriority mu_msg_gmime_get_priority (MuMsgGMime *msg);
/**
/**
* get the timestamp (mtime) for the file containing this message
*
* @param msg a valid MuMsgGMime* instance
@ -264,7 +282,7 @@ time_t mu_msg_gmime_get_timestamp (MuMsgGMime *msg);
typedef int (*MuMsgGMimeContactsCallback) (MuMsgContact*, void *ptr);
/**
/**
* call a function for each of the contacts in a message
*
* @param msg a valid MuMsgGMime* instance