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netbeans.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
* Netbeans integration by David Weatherford
* Adopted for Win32 by Sergey Khorev
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
*/
/*
* Implements client side of org.netbeans.modules.emacs editor
* integration protocol. Be careful! The protocol uses offsets
* which are *between* characters, whereas vim uses line number
* and column number which are *on* characters.
* See ":help netbeans-protocol" for explanation.
*
* The Netbeans messages are received and queued in the gui event loop, or in
* the select loop when Vim runs in a terminal. These messages are processed
* by netbeans_parse_messages() which is invoked in the idle loop when Vim is
* waiting for user input. The function netbeans_parse_messages() is also
* called from the ":sleep" command, to allow the execution of test cases that
* may not invoke the idle loop.
*/
#include "vim.h"
#if defined(FEAT_NETBEANS_INTG) || defined(PROTO)
#ifndef WIN32
# include <netdb.h>
# ifdef HAVE_LIBGEN_H
# include <libgen.h>
# endif
#endif
#include "version.h"
#define GUARDED 10000 /* typenr for "guarded" annotation */
#define GUARDEDOFFSET 1000000 /* base for "guarded" sign id's */
#define MAX_COLOR_LENGTH 32 /* max length of color name in defineAnnoType */
/* The first implementation (working only with Netbeans) returned "1.1". The
* protocol implemented here also supports A-A-P. */
static char *ExtEdProtocolVersion = "2.5";
static long pos2off(buf_T *, pos_T *);
static pos_T *off2pos(buf_T *, long);
static pos_T *get_off_or_lnum(buf_T *buf, char_u **argp);
static long get_buf_size(buf_T *);
static int netbeans_keystring(char_u *keystr);
static void postpone_keycommand(char_u *keystr);
static void special_keys(char_u *args);
static int netbeans_connect(char *, int);
static int getConnInfo(char *file, char **host, char **port, char **password);
static void nb_init_graphics(void);
static void coloncmd(char *cmd, ...);
static void nb_set_curbuf(buf_T *buf);
static void nb_parse_cmd(char_u *);
static int nb_do_cmd(int, char_u *, int, int, char_u *);
static void nb_send(char *buf, char *fun);
static void nb_free(void);
#define NETBEANS_OPEN (channel_can_write_to(nb_channel))
static channel_T *nb_channel = NULL;
static int r_cmdno; /* current command number for reply */
static int dosetvisible = FALSE;
/*
* Include the debugging code if wanted.
*/
#ifdef NBDEBUG
# include "nbdebug.c"
#endif
static int needupdate = 0;
static int inAtomic = 0;
/*
* Callback invoked when the channel is closed.
*/
static void
nb_channel_closed(void)
{
nb_channel = NULL;
}
/*
* Close the connection and cleanup.
* May be called when the socket was closed earlier.
*/
static void
netbeans_close(void)
{
if (NETBEANS_OPEN)
{
netbeans_send_disconnect();
if (nb_channel != NULL)
{
/* Close the socket and remove the input handlers. */
channel_close(nb_channel, TRUE);
channel_clear(nb_channel);
}
nb_channel = NULL;
}
#ifdef FEAT_BEVAL
bevalServers &= ~BEVAL_NETBEANS;
#endif
needupdate = 0;
inAtomic = 0;
nb_free();
/* remove all signs and update the screen after gutter removal */
coloncmd(":sign unplace *");
changed_window_setting();
update_screen(CLEAR);
setcursor();
cursor_on();
out_flush();
#ifdef FEAT_GUI
if (gui.in_use)
{
gui_update_cursor(TRUE, FALSE);
gui_mch_flush();
}
#endif
}
#define NB_DEF_HOST "localhost"
#define NB_DEF_ADDR "3219"
#define NB_DEF_PASS "changeme"
static int
netbeans_connect(char *params, int doabort)
{
int port;
char buf[32];
char *hostname = NULL;
char *address = NULL;
char *password = NULL;
char *fname;
char *arg = NULL;
if (*params == '=')
{
/* "=fname": Read info from specified file. */
if (getConnInfo(params + 1, &hostname, &address, &password) == FAIL)
return FAIL;
}
else
{
if (*params == ':')
/* ":<host>:<addr>:<password>": get info from argument */
arg = params + 1;
if (arg == NULL && (fname = getenv("__NETBEANS_CONINFO")) != NULL)
{
/* "": get info from file specified in environment */
if (getConnInfo(fname, &hostname, &address, &password) == FAIL)
return FAIL;
}
else
{
if (arg != NULL)
{
/* ":<host>:<addr>:<password>": get info from argument */
hostname = arg;
address = strchr(hostname, ':');
if (address != NULL)
{
*address++ = '\0';
password = strchr(address, ':');
if (password != NULL)
*password++ = '\0';
}
}
/* Get the missing values from the environment. */
if (hostname == NULL || *hostname == '\0')
hostname = getenv("__NETBEANS_HOST");
if (address == NULL)
address = getenv("__NETBEANS_SOCKET");
if (password == NULL)
password = getenv("__NETBEANS_VIM_PASSWORD");
/* Move values to allocated memory. */
if (hostname != NULL)
hostname = (char *)vim_strsave((char_u *)hostname);
if (address != NULL)
address = (char *)vim_strsave((char_u *)address);
if (password != NULL)
password = (char *)vim_strsave((char_u *)password);
}
}
/* Use the default when a value is missing. */
if (hostname == NULL || *hostname == '\0')
{
vim_free(hostname);
hostname = (char *)vim_strsave((char_u *)NB_DEF_HOST);
}
if (address == NULL || *address == '\0')
{
vim_free(address);
address = (char *)vim_strsave((char_u *)NB_DEF_ADDR);
}
if (password == NULL || *password == '\0')
{
vim_free(password);
password = (char *)vim_strsave((char_u *)NB_DEF_PASS);
}
if (hostname != NULL && address != NULL && password != NULL)
{
port = atoi(address);
nb_channel = channel_open(hostname, port, 3000, nb_channel_closed);
if (nb_channel != NULL)
{
/* success */
# ifdef FEAT_BEVAL
bevalServers |= BEVAL_NETBEANS;
# endif
/* success, login */
vim_snprintf(buf, sizeof(buf), "AUTH %s\n", password);
nb_send(buf, "netbeans_connect");
sprintf(buf, "0:version=0 \"%s\"\n", ExtEdProtocolVersion);
nb_send(buf, "externaleditor_version");
}
}
if (nb_channel == NULL && doabort)
getout(1);
vim_free(hostname);
vim_free(address);
vim_free(password);
return NETBEANS_OPEN ? OK : FAIL;
}
/*
* Obtain the NetBeans hostname, port address and password from a file.
* Return the strings in allocated memory.
* Return FAIL if the file could not be read, OK otherwise (no matter what it
* contains).
*/
static int
getConnInfo(char *file, char **host, char **port, char **auth)
{
FILE *fp;
char_u buf[BUFSIZ];
char_u *lp;
char_u *nlp;
#ifdef UNIX
stat_T st;
/*
* For Unix only accept the file when it's not accessible by others.
* The open will then fail if we don't own the file.
*/
if (mch_stat(file, &st) == 0 && (st.st_mode & 0077) != 0)
{
nbdebug(("Wrong access mode for NetBeans connection info file: \"%s\"\n",
file));
EMSG2(_("E668: Wrong access mode for NetBeans connection info file: \"%s\""),
file);
return FAIL;
}
#endif
fp = mch_fopen(file, "r");
if (fp == NULL)
{
nbdebug(("Cannot open NetBeans connection info file\n"));
PERROR("E660: Cannot open NetBeans connection info file");
return FAIL;
}
/* Read the file. There should be one of each parameter */
while ((lp = (char_u *)fgets((char *)buf, BUFSIZ, fp)) != NULL)
{
if ((nlp = vim_strchr(lp, '\n')) != NULL)
*nlp = 0; /* strip off the trailing newline */
if (STRNCMP(lp, "host=", 5) == 0)
{
vim_free(*host);
*host = (char *)vim_strsave(&buf[5]);
}
else if (STRNCMP(lp, "port=", 5) == 0)
{
vim_free(*port);
*port = (char *)vim_strsave(&buf[5]);
}
else if (STRNCMP(lp, "auth=", 5) == 0)
{
vim_free(*auth);
*auth = (char *)vim_strsave(&buf[5]);
}
}
fclose(fp);
return OK;
}
struct keyqueue
{
char_u *keystr;
struct keyqueue *next;
struct keyqueue *prev;
};
typedef struct keyqueue keyQ_T;
static keyQ_T keyHead; /* dummy node, header for circular queue */
/*
* Queue up key commands sent from netbeans.
* We store the string, because it may depend on the global mod_mask and
* :nbkey doesn't have a key number.
*/
static void
postpone_keycommand(char_u *keystr)
{
keyQ_T *node;
node = (keyQ_T *)alloc(sizeof(keyQ_T));
if (node == NULL)
return; /* out of memory, drop the key */
if (keyHead.next == NULL) /* initialize circular queue */
{
keyHead.next = &keyHead;
keyHead.prev = &keyHead;
}
/* insert node at tail of queue */
node->next = &keyHead;
node->prev = keyHead.prev;
keyHead.prev->next = node;
keyHead.prev = node;
node->keystr = vim_strsave(keystr);
}
/*
* Handle any queued-up NetBeans keycommands to be send.
*/
static void
handle_key_queue(void)
{
int postponed = FALSE;
while (!postponed && keyHead.next && keyHead.next != &keyHead)
{
/* first, unlink the node */
keyQ_T *node = keyHead.next;
keyHead.next = node->next;
node->next->prev = node->prev;
/* Now, send the keycommand. This may cause it to be postponed again
* and change keyHead. */
if (node->keystr != NULL)
postponed = !netbeans_keystring(node->keystr);
vim_free(node->keystr);
/* Finally, dispose of the node */
vim_free(node);
}
}
/*
* While there's still a command in the work queue, parse and execute it.
*/
void
netbeans_parse_messages(void)
{
readq_T *node;
char_u *buffer;
char_u *p;
int own_node;
while (nb_channel != NULL)
{
node = channel_peek(nb_channel, PART_SOCK);
if (node == NULL)
break; /* nothing to read */
/* Locate the end of the first line in the first buffer. */
p = channel_first_nl(node);
if (p == NULL)
{
/* Command isn't complete. If there is no following buffer,
* return (wait for more). If there is another buffer following,
* prepend the text to that buffer and delete this one. */
if (channel_collapse(nb_channel, PART_SOCK, TRUE) == FAIL)
return;
continue;
}
/* There is a complete command at the start of the buffer.
* Terminate it with a NUL. When no more text is following unlink
* the buffer. Do this before executing, because new buffers can
* be added while busy handling the command. */
*p++ = NUL;
if (*p == NUL)
{
own_node = TRUE;
buffer = channel_get(nb_channel, PART_SOCK);
/* "node" is now invalid! */
}
else
{
own_node = FALSE;
buffer = node->rq_buffer;
}
/* Now, parse and execute the commands. This may set nb_channel to
* NULL if the channel is closed. */
nb_parse_cmd(buffer);
if (own_node)
/* buffer finished, dispose of it */
vim_free(buffer);
else if (nb_channel != NULL)
/* more follows, move it to the start */
channel_consume(nb_channel, PART_SOCK, (int)(p - buffer));
}
}
/*
* Handle one NUL terminated command.
*
* format of a command from netbeans:
*
* 6:setTitle!84 "a.c"
*
* bufno
* colon
* cmd
* !
* cmdno
* args
*
* for function calls, the ! is replaced by a /
*/
static void
nb_parse_cmd(char_u *cmd)
{
char *verb;
char *q;
int bufno;
int isfunc = -1;
if (STRCMP(cmd, "DISCONNECT") == 0)
{
/* We assume the server knows that we can safely exit! */
/* Disconnect before exiting, Motif hangs in a Select error
* message otherwise. */
netbeans_close();
getout(0);
/* NOTREACHED */
}
if (STRCMP(cmd, "DETACH") == 0)
{
buf_T *buf;
FOR_ALL_BUFFERS(buf)
buf->b_has_sign_column = FALSE;
/* The IDE is breaking the connection. */
netbeans_close();
return;
}
bufno = strtol((char *)cmd, &verb, 10);
if (*verb != ':')
{
nbdebug((" missing colon: %s\n", cmd));
EMSG2("E627: missing colon: %s", cmd);
return;
}
++verb; /* skip colon */
for (q = verb; *q; q++)
{
if (*q == '!')
{
*q++ = NUL;
isfunc = 0;
break;
}
else if (*q == '/')
{
*q++ = NUL;
isfunc = 1;
break;
}
}
if (isfunc < 0)
{
nbdebug((" missing ! or / in: %s\n", cmd));
EMSG2("E628: missing ! or / in: %s", cmd);
return;
}
r_cmdno = strtol(q, &q, 10);
q = (char *)skipwhite((char_u *)q);
if (nb_do_cmd(bufno, (char_u *)verb, isfunc, r_cmdno, (char_u *)q) == FAIL)
{
#ifdef NBDEBUG
/*
* This happens because the ExtEd can send a command or 2 after
* doing a stopDocumentListen command. It doesn't harm anything
* so I'm disabling it except for debugging.
*/
nbdebug(("nb_parse_cmd: Command error for \"%s\"\n", cmd));
EMSG("E629: bad return from nb_do_cmd");
#endif
}
}
struct nbbuf_struct
{
buf_T *bufp;
unsigned int fireChanges:1;
unsigned int initDone:1;
unsigned int insertDone:1;
unsigned int modified:1;
int nbbuf_number;
char *displayname;
int *signmap;
short_u signmaplen;
short_u signmapused;
};
typedef struct nbbuf_struct nbbuf_T;
static nbbuf_T *buf_list = NULL;
static int buf_list_size = 0; /* size of buf_list */
static int buf_list_used = 0; /* nr of entries in buf_list actually in use */
static char **globalsignmap = NULL;
static int globalsignmaplen = 0;
static int globalsignmapused = 0;
static int mapsigntype(nbbuf_T *, int localsigntype);
static void addsigntype(nbbuf_T *, int localsigntype, char_u *typeName,
char_u *tooltip, char_u *glyphfile,
char_u *fg, char_u *bg);
static void print_read_msg(nbbuf_T *buf);
static void print_save_msg(nbbuf_T *buf, off_T nchars);
static int curPCtype = -1;
/*
* Free netbeans resources.
*/
static void
nb_free(void)
{
keyQ_T *key_node = keyHead.next;
nbbuf_T buf;
int i;
/* free the netbeans buffer list */
for (i = 0; i < buf_list_used; i++)
{
buf = buf_list[i];
vim_free(buf.displayname);
vim_free(buf.signmap);
if (buf.bufp != NULL)
{
buf.bufp->b_netbeans_file = FALSE;
buf.bufp->b_was_netbeans_file = FALSE;
}
}
vim_free(buf_list);
buf_list = NULL;
buf_list_size = 0;
buf_list_used = 0;
/* free the queued key commands */
while (key_node != NULL && key_node != &keyHead)
{
keyQ_T *next = key_node->next;
vim_free(key_node->keystr);
vim_free(key_node);
if (next == &keyHead)
{
keyHead.next = &keyHead;
keyHead.prev = &keyHead;
break;
}
key_node = next;
}
/* free the queued netbeans commands */
if (nb_channel != NULL)
channel_clear(nb_channel);
}
/*
* Get the Netbeans buffer number for the specified buffer.
*/
static int
nb_getbufno(buf_T *bufp)
{
int i;
for (i = 0; i < buf_list_used; i++)
if (buf_list[i].bufp == bufp)
return i;
return -1;
}
/*
* Is this a NetBeans-owned buffer?
*/
int
isNetbeansBuffer(buf_T *bufp)
{
return NETBEANS_OPEN && bufp->b_netbeans_file;
}
/*
* NetBeans and Vim have different undo models. In Vim, the file isn't
* changed if changes are undone via the undo command. In NetBeans, once
* a change has been made the file is marked as modified until saved. It
* doesn't matter if the change was undone.
*
* So this function is for the corner case where Vim thinks a buffer is
* unmodified but NetBeans thinks it IS modified.
*/
int
isNetbeansModified(buf_T *bufp)
{
if (isNetbeansBuffer(bufp))
{
int bufno = nb_getbufno(bufp);
if (bufno > 0)
return buf_list[bufno].modified;
else
return FALSE;
}
else
return FALSE;
}
/*
* Given a Netbeans buffer number, return the netbeans buffer.
* Returns NULL for 0 or a negative number. A 0 bufno means a
* non-buffer related command has been sent.
*/
static nbbuf_T *
nb_get_buf(int bufno)
{
/* find or create a buffer with the given number */
int incr;
if (bufno <= 0)
return NULL;
if (!buf_list)
{
/* initialize */
buf_list = (nbbuf_T *)alloc_clear(100 * sizeof(nbbuf_T));
buf_list_size = 100;
}
if (bufno >= buf_list_used) /* new */
{
if (bufno >= buf_list_size) /* grow list */
{
nbbuf_T *t_buf_list = buf_list;
incr = bufno - buf_list_size + 90;
buf_list_size += incr;
buf_list = (nbbuf_T *)vim_realloc(
buf_list, buf_list_size * sizeof(nbbuf_T));
if (buf_list == NULL)
{
vim_free(t_buf_list);
buf_list_size = 0;
return NULL;
}
vim_memset(buf_list + buf_list_size - incr, 0,
incr * sizeof(nbbuf_T));
}
while (buf_list_used <= bufno)
{
/* Default is to fire text changes. */
buf_list[buf_list_used].fireChanges = 1;
++buf_list_used;
}
}
return buf_list + bufno;
}
/*
* Return the number of buffers that are modified.
*/
static int
count_changed_buffers(void)
{
buf_T *bufp;
int n;
n = 0;
FOR_ALL_BUFFERS(bufp)
if (bufp->b_changed)
++n;
return n;
}
/*
* End the netbeans session.
*/
void
netbeans_end(void)
{
int i;
static char buf[128];
if (!NETBEANS_OPEN)
return;
for (i = 0; i < buf_list_used; i++)
{
if (!buf_list[i].bufp)
continue;
if (netbeansForcedQuit)
{
/* mark as unmodified so NetBeans won't put up dialog on "killed" */
sprintf(buf, "%d:unmodified=%d\n", i, r_cmdno);
nbdebug(("EVT: %s", buf));
nb_send(buf, "netbeans_end");
}
sprintf(buf, "%d:killed=%d\n", i, r_cmdno);
nbdebug(("EVT: %s", buf));
/* nb_send(buf, "netbeans_end"); avoid "write failed" messages */
nb_send(buf, NULL);
}
}
/*
* Send a message to netbeans.
* When "fun" is NULL no error is given.
*/
static void
nb_send(char *buf, char *fun)
{
if (nb_channel != NULL)
channel_send(nb_channel, PART_SOCK, (char_u *)buf,
(int)STRLEN(buf), fun);
}
/*
* Some input received from netbeans requires a response. This function
* handles a response with no information (except the command number).
*/
static void
nb_reply_nil(int cmdno)
{
char reply[32];
nbdebug(("REP %d: <none>\n", cmdno));
/* Avoid printing an annoying error message. */
if (!NETBEANS_OPEN)
return;
sprintf(reply, "%d\n", cmdno);
nb_send(reply, "nb_reply_nil");
}
/*
* Send a response with text.
* "result" must have been quoted already (using nb_quote()).
*/
static void
nb_reply_text(int cmdno, char_u *result)
{
char_u *reply;
nbdebug(("REP %d: %s\n", cmdno, (char *)result));
reply = alloc((unsigned)STRLEN(result) + 32);
sprintf((char *)reply, "%d %s\n", cmdno, (char *)result);
nb_send((char *)reply, "nb_reply_text");
vim_free(reply);
}
/*
* Send a response with a number result code.
*/
static void
nb_reply_nr(int cmdno, long result)
{
char reply[32];
nbdebug(("REP %d: %ld\n", cmdno, result));
sprintf(reply, "%d %ld\n", cmdno, result);
nb_send(reply, "nb_reply_nr");
}
/*
* Encode newline, ret, backslash, double quote for transmission to NetBeans.
*/
static char_u *
nb_quote(char_u *txt)
{
char_u *buf = alloc((unsigned)(2 * STRLEN(txt) + 1));
char_u *p = txt;
char_u *q = buf;
if (buf == NULL)
return NULL;
for (; *p; p++)
{
switch (*p)
{
case '\"':
case '\\':
*q++ = '\\'; *q++ = *p; break;
/* case '\t': */
/* *q++ = '\\'; *q++ = 't'; break; */
case '\n':
*q++ = '\\'; *q++ = 'n'; break;
case '\r':
*q++ = '\\'; *q++ = 'r'; break;
default:
*q++ = *p;
break;
}
}
*q = '\0';
return buf;
}
/*
* Remove top level double quotes; convert backslashed chars.
* Returns an allocated string (NULL for failure).
* If "endp" is not NULL it is set to the character after the terminating
* quote.
*/
static char *
nb_unquote(char_u *p, char_u **endp)
{
char *result = 0;
char *q;
int done = 0;
/* result is never longer than input */
result = (char *)alloc_clear((unsigned)STRLEN(p) + 1);
if (result == NULL)
return NULL;
if (*p++ != '"')
{
nbdebug(("nb_unquote called with string that doesn't start with a quote!: %s\n",
p));
result[0] = NUL;
return result;
}
for (q = result; !done && *p != NUL;)
{
switch (*p)
{
case '"':
/*
* Unbackslashed dquote marks the end, if first char was dquote.
*/
done = 1;
break;
case '\\':
++p;
switch (*p)
{
case '\\': *q++ = '\\'; break;
case 'n': *q++ = '\n'; break;
case 't': *q++ = '\t'; break;
case 'r': *q++ = '\r'; break;
case '"': *q++ = '"'; break;
case NUL: --p; break;
/* default: skip over illegal chars */
}
++p;
break;
default:
*q++ = *p++;
}
}
if (endp != NULL)
*endp = p;
return result;
}
/*
* Remove from "first" byte to "last" byte (inclusive), at line "lnum" of the
* current buffer. Remove to end of line when "last" is MAXCOL.
*/
static void
nb_partialremove(linenr_T lnum, colnr_T first, colnr_T last)
{
char_u *oldtext, *newtext;
int oldlen;
int lastbyte = last;
oldtext = ml_get(lnum);
oldlen = (int)STRLEN(oldtext);
if (first >= (colnr_T)oldlen || oldlen == 0) /* just in case */
return;
if (lastbyte >= oldlen)
lastbyte = oldlen - 1;
newtext = alloc(oldlen - (int)(lastbyte - first));
if (newtext != NULL)
{
mch_memmove(newtext, oldtext, first);
STRMOVE(newtext + first, oldtext + lastbyte + 1);
nbdebug((" NEW LINE %d: %s\n", lnum, newtext));
ml_replace(lnum, newtext, FALSE);
}
}
/*
* Replace the "first" line with the concatenation of the "first" and
* the "other" line. The "other" line is not removed.
*/
static void
nb_joinlines(linenr_T first, linenr_T other)
{
int len_first, len_other;
char_u *p;
len_first = (int)STRLEN(ml_get(first));
len_other = (int)STRLEN(ml_get(other));
p = alloc((unsigned)(len_first + len_other + 1));
if (p != NULL)
{
mch_memmove(p, ml_get(first), len_first);
mch_memmove(p + len_first, ml_get(other), len_other + 1);
ml_replace(first, p, FALSE);
}
}
#define SKIP_STOP 2
#define streq(a,b) (strcmp(a,b) == 0)
/*
* Do the actual processing of a single netbeans command or function.
* The difference between a command and function is that a function
* gets a response (it's required) but a command does not.
* For arguments see comment for nb_parse_cmd().
*/
static int
nb_do_cmd(
int bufno,
char_u *cmd,
int func,
int cmdno,
char_u *args) /* points to space before arguments or NUL */
{
int do_update = 0;
long off = 0;
nbbuf_T *buf = nb_get_buf(bufno);
static int skip = 0;
int retval = OK;
char *cp; /* for when a char pointer is needed */
nbdebug(("%s %d: (%d) %s %s\n", (func) ? "FUN" : "CMD", cmdno, bufno, cmd,
STRCMP(cmd, "insert") == 0 ? "<text>" : (char *)args));
if (func)