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bookmark.c
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bookmark.c
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/*
* Bookmark.C
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include <ctype.h> /* isspace() */
#if defined (__PUREC__)
# include <ext.h>
#else
# include <sys/stat.h>
# ifdef __GNUC__
# include <unistd.h>
# endif
#endif
#include "global.h"
#include "bookmark.h"
#define BKM_MAGIC "<!DOCTYPE HighWire-Bookmark-File-4>"
const char * bkm_File = NULL;
const char * bkm_CSS = NULL;
/*----------------------------------------------------------------------------*/
#define open_bookmarkCss(mode) open_default (&bkm_CSS, _HIGHWIRE_BKM_CSS_, mode)
#define open_bookmarks(mode) open_default (&bkm_File,_HIGHWIRE_BOOKMARK_,mode)
/*============================================================================*/
long
bookmark_id2date (const char * id, char * buff, size_t b_len)
{
time_t dt = (id && (*id == 'L' || *id == 'G') && id[1] == '-'
? (strtoul (id +2, NULL, 16) >>2) | 0x40000000ul : 0ul);
if (buff && b_len) {
char buf[80];
size_t len;
if (dt) {
struct tm * tm = localtime (&dt);
len = sprintf (buf, "%04i-%02i-%02i %02i:%02i:%02i",
tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
} else {
len = strlen (strcpy (buf, "<invalid>"));
}
if (len >= b_len) len = b_len -1;
memcpy (buff, buf, len);
buff[len] = '\0';
}
return dt;
}
/*----------------------------------------------------------------------------*/
static ULONG
get_id (void)
{
static ULONG _id = 0uL;
ULONG id = time(NULL) <<2;
return (_id = (id > _id ? id : _id +1));
}
/******************************************************************************/
typedef struct s_bkm_line * BKM_LINE;
struct s_bkm_line {
BKM_LINE Next, Prev;
char * Id;
size_t Id_ln;
char * Class;
size_t Class_ln;
char * Text;
size_t Text_ln;
char Type; /* '\0' unchecked, '*' someting else, 'B'ookmark, `!`, */
char Buff[2]; /* 'G'roup & 'b'egin & 'e'nd */
};
static BKM_LINE bkm_list_beg = NULL;
static BKM_LINE bkm_list_end = NULL;
static time_t bkm_list_tm = 0;
/*----------------------------------------------------------------------------*/
#if 0
static void
bkm_print (BKM_LINE line)
{
if (line) {
BOOL ci = FALSE;
int len = line->Text_ln;
while (line->Text[len-1] == '\n') len--;
printf ("%c", (line->Type ? line->Type : '?'));
if (line->Class_ln&&line->Class)
ci |= printf (" cl='%.*s'", (int)line->Class_ln, line->Class);
if (line->Id_ln&&line->Id)
ci |= printf (" id='%.*s'", (int)line->Id_ln, line->Id);
printf ("%s '%.*s'\n", (ci ? "\n " : ""), len, line->Text);
} else {
printf ("\360 <nil>\n");
}
}
/*----------------------------------------------------------------------------*/
#if 01
static void
bkm_dump_ (const char * func)
{
BKM_LINE line = bkm_list_beg;
puts ("________________________________________"
"________________________________________");
if (func) {
puts(func);
printf ("%.*s\n", (int)strlen(func)+1, "-------------------------------");
}
while (line) {
bkm_print (line);
line = line->Next;
}
}
# define bkm_dump(func) bkm_dump_(func)
#endif
#endif /* bkm_print */
#ifndef bkm_dump
# define bkm_dump(func)
#endif
/*----------------------------------------------------------------------------*/
static void
bkm_insert (BKM_LINE line, BKM_LINE prev)
{
if (prev) {
line->Prev = prev;
line->Next = prev->Next;
prev->Next = line;
} else {
line->Prev = NULL;
line->Next = bkm_list_beg;
bkm_list_beg = line;
}
if (line->Next) {
line->Next->Prev = line;
} else {
bkm_list_end = line;
}
}
/*----------------------------------------------------------------------------*/
static void
bkm_remove (BKM_LINE line)
{
if (line->Prev) line->Prev->Next = line->Next;
else bkm_list_beg = line->Next;
if (line->Next) line->Next->Prev = line->Prev;
else bkm_list_end = line->Prev;
}
/*----------------------------------------------------------------------------*/
static BKM_LINE
bkm_create (BKM_LINE prev, const char * text, size_t extra)
{
size_t len = strlen (text ? text : (text = ""));
BKM_LINE line;
while (len && isspace (text[len-1])) {
len--;
}
if ((line = malloc (sizeof (struct s_bkm_line) + len + extra)) != NULL) {
line->Text = memcpy (line->Buff, text, len);
if (!extra) {
line->Buff[len +0] = '\n';
line->Buff[len +1] = '\0';
} else {
line->Buff[len +0] = '\0';
}
while (isspace (*line->Text)) {
line->Text++;
len--;
}
line->Text_ln = len;
line->Type = (extra || *line->Text == '<' ? '\0' : '*');
line->Id = NULL;
line->Id_ln = 0;
line->Class = NULL;
line->Class_ln = 0;
bkm_insert (line, prev);
}
return line;
}
/*----------------------------------------------------------------------------*/
static void
bkm_delete (BKM_LINE line)
{
if (line) {
bkm_remove (line);
free (line);
}
}
/*----------------------------------------------------------------------------*/
static BKM_LINE
bkm_create_grp (BKM_LINE prev, const char * title)
{
ULONG id_class = get_id();
char b1[100];
size_t l1 = sprintf (b1, "<DT CLASS='GRP' ID='G-%08lX'><B>", id_class);
size_t l2 = strlen (title && *title ? title : (title = "?\250?\250?"));
char b3[] = "</B></DT>\n";
BKM_LINE line = bkm_create (prev, NULL, l1 + l2 + sizeof(b3)-1);
if (line) {
char * p = line->Buff;
memcpy (p, b1, l1);
memcpy (p += l1, title, l2);
strcpy (p += l2, b3);
sprintf (b1, "<DL CLASS='G-%08lX'>", id_class);
if ((line = bkm_create ((prev = line), b1, 0)) == NULL) {
bkm_delete (prev);
}
}
return line;
}
/*----------------------------------------------------------------------------*/
static BKM_LINE
bkm_create_lnk (BKM_LINE prev, const char * title, const char * url, long visit)
{
ULONG id = get_id();
char b1[100];
size_t l1 = sprintf (b1, "<DT CLASS='LNK' ID='L-%08lX'>"
"<A TARGET='_hw_top' LAST_VISIT='%08lX'"
" HREF='", id, visit);
size_t l2 = strlen (url && *url ? url : (url = "#"));
char b3[] = "'>";
size_t l3 = sizeof(b3) -1;
size_t l4 = strlen (title && *title ? title : (title = "?\250?\250?"));
char b5[] = "</A></DT>\n";
BKM_LINE line = bkm_create (prev, NULL, l1 + l2 + l3 + l4 + sizeof(b5)-1);
if (line) {
char * p = line->Buff;
memcpy (p, b1, l1);
memcpy (p += l1, url, l2);
memcpy (p += l2, b3, l3);
memcpy (p += l3, title, l4);
strcpy (p += l4, b5);
}
return line;
}
/*----------------------------------------------------------------------------*/
static void
bkm_clear (void)
{
while (bkm_list_beg) {
BKM_LINE next = bkm_list_beg->Next;
free (bkm_list_beg);
bkm_list_beg = next;
}
bkm_list_end = NULL;
}
/*----------------------------------------------------------------------------*/
static void
bkm_flush (void)
{
FILE * file = (bkm_list_beg ? open_bookmarks ("wb") : NULL);
if (file) {
struct stat st;
union { const char * c; char * v; } u;
BKM_LINE line = bkm_list_beg;
while (line) {
fputs (line->Buff, file);
line = line->Next;
}
fclose (file);
u.c = bkm_File;
stat (u.v, &st);
bkm_list_tm = st.st_mtime;
}
}
/*----------------------------------------------------------------------------*/
static char
bkm_check (BKM_LINE line)
{
char * p = line->Text;
if (strncmp (p, "</DL>\n", 6) == 0) {
line->Type = 'e';
return line->Type;
}
if (*(p++) != '<' || *(p++) != 'D' || (*p != 'T' && *p != 'L')
|| strncmp (++p, " CLASS='", 8) != 0) {
line->Type = '*';
return line->Type;
}
line->Class = p += 8;
while (*p && *p != '\'') {
p++;
}
if ((line->Class_ln = p - line->Class) == 0) {
line->Class = NULL;
}
if (line->Class && line->Text[2] == 'L') {
line->Type = 'b';
return line->Type;
}
if (!line->Class || line->Text[2] != 'T'
|| strncmp (p, "' ID='", 6) != 0) {
line->Type = '*';
return line->Type;
}
line->Id = p += 6;
while (*p && *p != '\'') {
p++;
}
if ((line->Id_ln = p - line->Id) == 0) {
line->Id = NULL;
line->Type = '*';
return line->Type;
}
if (strncmp (line->Class, "LNK'", 4) == 0) {
if ((p = strchr (p +1, '>')) != NULL &&
(p = strstr (p +1, "<A ")) != NULL &&
(p = strchr (p +3, '>')) != NULL) {
char * q = strchr (p += 1, '<');
if (q > p) {
line->Text = p;
line->Text_ln = q - p;
line->Type = 'B';
return line->Type;
}
}
} else if (strncmp (line->Class, "GRP'", 4) == 0) {
if ((p = strchr (p +1, '>')) != NULL &&
(p = strstr (p +1, "<B>")) != NULL) {
char * q = strchr (p += 3, '<');
if (q > p) {
line->Text = p;
line->Text_ln = q - p;
line->Type = 'G';
return line->Type;
}
}
}
return (line->Type = '*');
}
/*----------------------------------------------------------------------------*/
static BKM_LINE
bkm_search (BKM_LINE line, const char * id, BOOL dnNup)
{
size_t len = (id ? strlen (id) : 0);
if (bkm_File && !line && (bkm_list_beg || !bkm_list_tm)) {
struct stat st;
union { const char * c; char * v; } u;
u.c = bkm_File;
if (stat (u.v, &st) == E_OK && bkm_list_tm != st.st_mtime) {
bkm_list_tm = st.st_mtime;
bkm_clear();
}
}
if (!bkm_list_beg) {
char * buff = NULL;
FILE * file = NULL;
struct stat st;
union { const char * c; char * v; } u;
u.c = bkm_File;
if (stat (u.v, &st) == E_OK && st.st_size > 0
&& (buff = malloc (st.st_size +1)) != NULL
&& (file = open_bookmarks ("rb")) != NULL
&& fread (buff, 1, st.st_size, file)) {
char * beg = buff;
buff[st.st_size] = '\0';
line = NULL;
while (*beg) {
char * end = strchr (beg, '\n');
if (!end) end = strchr (beg, '\0');
*end = '\0';
if ((line = bkm_create (line, beg, 0)) == NULL) {
bkm_clear();
puts ("bkm_search(): memory exhausted!");
break;
}
beg = end +1;
}
}
if (file) fclose (file);
if (buff) free (buff);
if ((line = bkm_list_beg) != NULL) do {
if (!line->Type && strncmp (line->Text, "<DL", 3) == 0) {
line->Type = '!';
break;
}
} while ((line = line->Next) != NULL);
if ((line = bkm_list_end) != NULL) do {
if (!line->Type && strncmp (line->Text, "</DL>", 5) == 0) {
line->Type = '!';
break;
}
} while ((line = line->Prev) != NULL);
line = NULL;
}
if (!len) { /*.............................................................*/
return NULL;
} else if (strcmp (id, "*") == 0) { /*..... just get the next/prev element */
line = (dnNup ? line ? line->Next : bkm_list_beg
: line ? line->Prev : bkm_list_end);
if (line && !line->Type) {
bkm_check (line);
}
return line;
} else if (strcmp (id, "?") == 0) { /*.............. search for any 'type' */
line = (dnNup ? line ? line->Next : bkm_list_beg
: line ? line->Prev : bkm_list_end);
while (line) {
if (isalpha (line->Type ? line->Type : bkm_check (line))) {
return line;
}
line = (dnNup ? line->Next : line->Prev);
}
} else if (id[0] && !id[1]) { /*.................. search for exact 'type' */
if (!line) {
line = (dnNup ? bkm_list_beg : bkm_list_end);
}
while (line) {
if ((line->Type ? line->Type : bkm_check (line)) == id[0]) {
return line;
}
line = (dnNup ? line->Next : line->Prev);
}
} else { /*.................................. normal case, search for 'id' */
if (!line) {
line = (dnNup ? bkm_list_beg : bkm_list_end);
}
while (line) {
if (!line->Type) {
bkm_check (line);
}
if (line->Id && line->Id_ln == len
&& strncmp (line->Id, id, len) == 0) {
return line;
}
line = (dnNup ? line->Next : line->Prev);
}
}
return NULL;
}
/******************************************************************************/
static const char tmpl_head[] =
BKM_MAGIC "\n"
"<HTML><HEAD>\n"
" <META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html;"
" charset=atarist\">\n"
" <TITLE>Bookmarks</TITLE>\n"
" <LINK REL=\"stylesheet\" HREF=\"bookmark.css\" TYPE=\"text/css\""
" MEDIA=\"screen\">\n"
"</HEAD>\n";
static const char tmpl_tail[] =
"</DL>\n"
"</BODY></HTML>\n";
static const char tmpl_css[] =
"BODY { background-color: white; }\n"
"DL DL { border-width: 0px 1px 1px; border-color: A0A0A0;"
" border-style: solid;\n"
" margin-bottom: 1px; margin-left: 1em; padding: 0px 3px; }\n"
"DT.GRP { white-space:nowrap; background-color: E0E0E0;"
" padding: 0px 3px 1px 3px;\n"
" border-width: 1px; border-style: solid; }\n"
"DT.LNK { text-indent: -2em }\n"
"A { text-decoration: none; }\n"
"\n";
/*============================================================================*/
BOOL
read_bookmarks (char ** old_file)
{
BOOL ok = TRUE;
FILE * file = NULL;
if (old_file) {
*old_file = NULL;
}
if ((file = open_bookmarks ("r")) != NULL) {
size_t len = strchr (tmpl_head, '>') - tmpl_head +1;
char buff[1024];
if (!fgets (buff, (int)sizeof(buff), file)) {
buff[0] = '\0';
}
fclose (file);
if (strncmp (buff, tmpl_head, len) == 0) {
ok = TRUE; /* version matches */
} else {
char * bak_file = (bkm_File ? strdup (bkm_File) : NULL);
if (bak_file) {
const char * bak_name = "book-old.htm";
char * ptr = strrchr (bak_file, '\\');
if (!ptr) ptr = strrchr (bak_file, '/');
if (ptr) {
strcpy (++ptr, bak_name);
unlink (bak_file);
if (rename (bkm_File, bak_file) == E_OK) {
union { const char * c; char * v; } u;
u.c = bkm_File;
free (u.v);
bkm_File = NULL;
if ((file = open_bookmarkCss ("r")) != NULL) {
fclose (file);
}
if (bkm_CSS) {
unlink (bkm_CSS);
u.c = bkm_CSS;
free (u.v);
bkm_CSS = NULL;
}
}
}
if (old_file) {
*old_file = bak_file;
} else {
free (bak_file);
}
}
file = NULL;
}
}
if (!file) {
char buff[30];
BKM_LINE line = NULL;
sprintf (buff, "<BODY ID='%08lX'>", get_id());
line = bkm_create (line, tmpl_head, 0uL);
line = bkm_create (line, buff, 0uL);
line = bkm_create (line, "<DL>", 0uL);
line = bkm_create_grp (line, "HighWire Project");
line = bkm_create_lnk (line, "HighWire Homepage",
"http://highwire.atari-users.net", 0L);
line = bkm_create_lnk (line, "HighWire Forum",
"http://www.atariforums.com/index.php?20", 0L);
line = bkm_create_lnk (line, "Developers Mailing lists",
"http://www.atari-users.net/mailman/listinfo/highwire", 0L);
line = bkm_create_lnk (line, "Users Mailing lists",
"http://www.atari-users.net/mailman/listinfo/highwire-users", 0L);
line = bkm_create_lnk (line, "Bugtracker",
"http://highwire.atari-users.net/mantis/", 0L);
line = bkm_create (line, "</DL>", 0uL);
line = bkm_create (line, tmpl_tail, 0uL);
bkm_flush();
bkm_clear();
ok = TRUE; /* version matches now */
if ((file = open_bookmarkCss ("r")) != NULL) {
/* Bookmarks CSS exists, read or parse or load? */
fclose(file);
} else if ((file = open_bookmarkCss ("w")) != NULL) {
/* The idea is that we can put a display none in to hide DL sets */
fputs (tmpl_css, file);
fclose(file);
}
}
return ok;
}
/*============================================================================*/
BOOL
save_bookmarks (void)
{
bkm_flush();
bkm_clear();
return TRUE;
}
/*==============================================================================
* extract useable links from the file 'name' and add them to the bookmark file
*/
BOOL
pick_bookmarks (const char * name,
void (*progress)(ULONG, ULONG, const char *, const char *))
{
BOOL done = FALSE;
BKM_LINE line = NULL;
ULONG size = 0ul;
char * fbuf = NULL;
char * p = NULL;
char * pend = NULL;
if (name && *name) {
struct stat st;
union { const char * c; char * v; } u;
u.c = name;
st.st_size = 0;
if (stat (u.v, &st) == E_OK && (size = st.st_size) > 0
&& (fbuf = malloc (max (size, 100) +1)) != NULL) {
FILE * file;
sprintf (fbuf, "Import: '%.90s'",
(p = strrchr (name, '\\')) != NULL ? p +1 :
(p = strrchr (name, '/') ) != NULL ? p +1 : name);
if (progress) (*progress)(size, 0, NULL, fbuf);
if ((file = fopen (name, "rb")) != NULL) {
fread (fbuf, 1, size, file);
fclose (file);
*(pend = (p = fbuf) + size) = '\0';
do if (*p < ' ') {
*p = ' ';
} while (++p < pend);
p = fbuf;
if (progress) (*progress)(size, 1, NULL, NULL);
}
}
}
while (p < pend) {
char * url = NULL;
char * txt = NULL;
char * tag = memchr (p, '<', pend - p);
if (!tag) {
if (progress) (*progress)(size, size, NULL, NULL);
p = pend;
break;
}
if (strnicmp (++tag, "A ", 2) == 0) {
if (progress) (*progress)(size, p - fbuf, NULL, NULL);
p = tag +2;
if ((tag = memchr (p, '>', pend - p)) == NULL) tag = pend -1;
else *tag = '\0';
while (*p && strnicmp (p, "HREF=", 5) != 0) p++;
if (*p && *(p += 5)) {
char * end = (*p == '"' ? strchr (p +1, '"') :
*p == '\'' ? strchr (p +1, '\'') : NULL);
if (end) {
p++;
} else if (*p =='/' || isalnum (*p)) {
end = p;
while (*end && !isspace (*(++end)));
}
if (end) {
*end = '\0';
url = p;
if (progress) (*progress)(size, url - fbuf, "", url);
}
}
}
if (url && (p = strstr (tag +1, "</")) != NULL) {
while (strnicmp (p +2, "A>", 2) != 0
&& (p = strstr (p +4, "</")) != NULL);
if (p) {
*p = '\0';
txt = tag;
tag = p +4;
while (isspace(*(++txt)));
while (p > txt && isspace(*(--p))) *p = '\0';
if (progress) (*progress)(size, txt - fbuf, txt, NULL);
}
}
if (url) {
char buff[1024];
if (!line) {
sprintf (buff, "Import: '%.90s'",
(p = strrchr (name, '\\')) != NULL ? p +1 :
(p = strrchr (name, '/') ) != NULL ? p +1 : name);
if (add_bookmark_group (NULL, buff)) {
line = bkm_search (NULL, "b", FALSE);
bkm_flush();
done = TRUE;
} else {
break; /* memory exhausted or file format error */
}
}
line = bkm_create_lnk (line, (txt && *txt ? txt : url), url, 0L);
if (line) {
bkm_flush();
done = TRUE;
} else {
break; /* memory exhausted */
}
}
p = tag +1;
if (progress) (*progress)(size, p - fbuf, NULL, NULL);
}
if (fbuf) free (fbuf);
if (progress) (*progress)(0, 0, NULL, NULL);
return done;
}
/*============================================================================*/
BOOL
add_bookmark (const char * url, const char * title)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, "?", FALSE);
if (!line) line = bkm_search (NULL, "!", TRUE); /* empty file? */
if (line) {
if (bkm_create_lnk (line, title, url, 0L)) {
bkm_flush();
done = TRUE;
}
}
return done;
}
/*============================================================================*/
BOOL
del_bookmark (const char * lnk)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, lnk, TRUE);
if (line && line->Type == 'B') {
bkm_delete (line);
bkm_flush();
done = TRUE;
}
return done;
}
/*============================================================================*/
BOOL
pos_bookmark (const char * lnk, BOOL dnNup)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, lnk, !dnNup);
if (line && line->Type == 'B') {
BKM_LINE othr = bkm_search (line, "?", dnNup);
if (othr) switch (othr->Type) {
case 'G':
if (!dnNup) othr = othr->Prev;
else othr = bkm_search (othr, "b", TRUE);
break;
case 'b':
if (!dnNup && (othr = bkm_search (othr, "G", FALSE)) == NULL) break;
case 'e':
case 'B':
if (!dnNup) othr = othr->Prev;
break;
default:
othr = NULL;
}
if (othr) {
bkm_remove (line);
bkm_insert (line, othr);
bkm_flush();
done = TRUE;
}
}
return done;
}
/*============================================================================*/
BOOL
txt_bookmark_entry (const char * id, char * rw_buf, size_t lenNwr)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, id, TRUE);
if (line) {
if (lenNwr) {
size_t len = min (line->Text_ln, lenNwr -1);
memcpy (rw_buf, line->Text, len);
rw_buf[len] = '\0';
done = TRUE;
} else {
size_t len = strlen (rw_buf);
if (line->Text_ln == len) {
memcpy (line->Text, rw_buf, len);
bkm_flush();
done = TRUE;
} else {
char * p1 = line->Buff;
size_t l1 = line->Text - line->Buff;
char * p3 = line->Text + line->Text_ln;
size_t l3 = strlen (p3);
if ((line = bkm_create (line, NULL, l1 + len + l3)) != NULL) {
char * p = line->Buff;
memcpy (p, p1, l1);
memcpy (p += l1, rw_buf, len);
strcpy (p += len, p3);
bkm_delete (line->Prev);
bkm_flush();
done = TRUE;
}
}
}
bkm_dump ("txt_bookmark");
}
return done;
}
/*============================================================================*/
BOOL
pos_bookmark_entry (const char * id, const char * other)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, id, TRUE);
if (line) {
BKM_LINE prev;
if (!other || !*other) {
prev = NULL;
} else if (strcmp (other, "<") == 0) {
prev = bkm_search (NULL, "!", TRUE);
} else if (strcmp (other, ">") == 0) {
prev = bkm_search (NULL, "?", FALSE);
} else {
prev = bkm_search (NULL, other, TRUE);
}
if (prev) {
if (prev == line || prev == line->Prev) {
prev = NULL;
} else if (line->Type == 'G') {
BKM_LINE temp = bkm_search (line, "e", TRUE);
if (!temp) {
prev = NULL;
} else do { /* check for 'other' is inside 'id' itself */
if (temp == prev) {
prev = NULL;
break;
}
} while ((temp = temp->Prev) != line);
temp = prev;
while (temp) { /* check for 'other' is inside another group */
if (temp->Type == 'b' || temp->Type == 'G') {
if ((prev = bkm_search (prev, "e", TRUE)) == line->Prev) {
prev = NULL;
}
break;
} else if (temp->Type == 'e' || temp->Type == '!') {
break;
}
temp = temp->Prev;
}
} else if (prev->Type == 'G') {
prev = bkm_search (prev, "b", TRUE);
}
}
if (prev) {
bkm_remove (line);
if (line->Type == 'G') {
BKM_LINE temp = line->Next;
while (temp) {
bkm_remove (temp);
if (temp->Type == 'e') {
temp->Next = NULL;
break;
}
temp = temp->Next;
}
} else {
line->Next = NULL;
}
do {
BKM_LINE temp = line->Next;
bkm_insert (line, prev);
prev = line;
line = temp;
} while (line);
bkm_flush();
done = TRUE;
}
}
return done;
}
/*============================================================================*/
BOOL
add_bookmark_group (const char * lnk, const char *title)
{
BOOL done = FALSE;
BOOL ins = (lnk && *lnk);
BKM_LINE line = (ins ? bkm_search (NULL, lnk, TRUE)
: bkm_search (NULL, "!", FALSE));
if (line) {
BKM_LINE group;
char id[12];
if (!title) {
sprintf (id, "G-%08lX", get_id() -1);
title = id;
}
if ((group = bkm_create_grp (line->Prev, title)) != NULL) {
if (bkm_create ((ins ? line : group), "</DL>", 0)) {
bkm_flush();
done = TRUE;
} else {
bkm_delete (group->Prev);
bkm_delete (group);
}
}
bkm_dump ("add_bookmark_group");
}
return done;
}
/*----------------------------------------------------------------------------*/
static BOOL cl_cmp (BKM_LINE grp, const char * cl)
{
size_t len = (cl && grp ? strlen (cl) : 0l);
return (len && grp->Class_ln == len && strncmp (grp->Class, cl, len) == 0);
}
/*============================================================================*/
BOOL
del_bookmark_group (const char * grp)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, grp, TRUE);
if (line && line->Type == 'G') {
BKM_LINE beg = bkm_search (line, "b", TRUE);
BKM_LINE end = (cl_cmp (beg, grp) ? bkm_search (beg, "e", TRUE) : NULL);
if (end) {
bkm_delete (line);
bkm_delete (beg);
bkm_delete (end);
set_bookmark_group (grp, TRUE);
bkm_flush();
done = TRUE;
}
bkm_dump ("del_bookmark_group");
}
return done;
}
/*============================================================================*/
BOOL
pos_bookmark_group (const char * grp, BOOL dnNup)
{
BOOL done = FALSE;
BKM_LINE line = bkm_search (NULL, grp, !dnNup);
if (line && line->Type == 'G') {
BKM_LINE beg = bkm_search (line, "b", TRUE);
BKM_LINE end = (cl_cmp (beg, grp) ? bkm_search (beg, "e", TRUE) : NULL);
BKM_LINE othr = (end ? bkm_search ((dnNup ? end : line), "?", dnNup)
: NULL);
if (othr) switch (othr->Type) {
case 'G':
if (!dnNup) othr = othr->Prev;
else othr = bkm_search (othr, "e", TRUE);
break;
case 'e':
if (dnNup || (othr = bkm_search (othr, "G", FALSE)) == NULL) break;
case 'B':
if (!dnNup) othr = othr->Prev;
break;
default:
othr = NULL;
}
if (othr) {
bkm_remove (line);
line->Next = beg;
do {
bkm_remove (beg);
} while ((beg = beg->Next) != end);
bkm_remove (end);
end->Next = NULL;
do {
beg = line->Next;
bkm_insert (line, othr);
othr = line;
} while ((line = beg) != NULL);
bkm_flush();
done = TRUE;
}
}
return done;
}
/*----------------------------------------------------------------------------*/
typedef struct s_fline * FLINE;
struct s_fline {
FLINE Next;
char Text[1];
};
/* - - - - - - - - - - - - - - - - - - - - - */
static FLINE
add_line (FLINE ** base, char * buff)
{
size_t len = strlen (buff);
FLINE line = malloc (sizeof (struct s_fline) + len);
if (line) {
memcpy (line->Text, buff, len +1);
line->Next = **base;
**base = line;