_nc_set_writedir(char *dir)
/* set the write directory for compiled entries */
{
const char *destination;
char actual[PATH_MAX];
if (dir == 0
&& use_terminfo_vars())
dir = getenv("TERMINFO");
if (dir != 0)
(void) _nc_tic_dir(dir);
destination = _nc_tic_dir(0);
if (make_directory(destination) < 0) {
char *home = _nc_home_terminfo();
if (home != 0) {
destination = home;
if (make_directory(destination) < 0)
_nc_err_abort("%s: permission denied (errno %d)",
destination, errno);
}
}
/*
* Note: because of this code, this logic should be exercised
* *once only* per run.
*/
if (chdir(_nc_tic_dir(destination)) < 0
|| getcwd(actual, sizeof(actual)) == 0)
_nc_err_abort("%s: not a directory", destination);
_nc_keep_tic_dir(strdup(actual));
}
_nc_read_entry_source(FILE *fp, char *buf,
int literal, bool silent,
bool(*hook) (ENTRY *))
/* slurp all entries in the given file into core */
{
ENTRY thisentry;
bool oldsuppress = _nc_suppress_warnings;
int immediate = 0;
if (silent)
_nc_suppress_warnings = TRUE; /* shut the lexer up, too */
_nc_reset_input(fp, buf);
for (;;) {
memset(&thisentry, 0, sizeof(thisentry));
if (_nc_parse_entry(&thisentry, literal, silent) == ERR)
break;
if (!isalnum(UChar(thisentry.tterm.term_names[0])))
_nc_err_abort("terminal names must start with letter or digit");
/*
* This can be used for immediate compilation of entries with no "use="
* references to disk. That avoids consuming a lot of memory when the
* resolution code could fetch entries off disk.
*/
if (hook != NULLHOOK && (*hook) (&thisentry)) {
immediate++;
} else {
enqueue(&thisentry);
/*
* The enqueued entry is copied with _nc_copy_termtype(), so we can
* free some of the data from thisentry, i.e., the arrays.
*/
FreeIfNeeded(thisentry.tterm.Booleans);
FreeIfNeeded(thisentry.tterm.Numbers);
FreeIfNeeded(thisentry.tterm.Strings);
#if NCURSES_XNAMES
FreeIfNeeded(thisentry.tterm.ext_Names);
#endif
}
}
if (_nc_tail) {
/* set up the head pointer */
for (_nc_head = _nc_tail; _nc_head->last; _nc_head = _nc_head->last)
continue;
DEBUG(1, ("head = %s", _nc_head->tterm.term_names));
DEBUG(1, ("tail = %s", _nc_tail->tterm.term_names));
}
#ifdef TRACE
else if (!immediate)
DEBUG(1, ("no entries parsed"));
#endif
_nc_suppress_warnings = oldsuppress;
}
static inline void
get_space(size_t need)
{
need += out_used;
if (need > out_size) {
out_size = need * 2;
out_buff = typeRealloc(char, out_size, out_buff);
if (out_buff == 0)
_nc_err_abort(MSG_NO_MEMORY);
}
static char *
init_string(void)
/* initialize 'my_string', 'my_length' */
{
if (my_string == 0)
my_string = typeMalloc(char, my_length = 256);
if (my_string == 0)
_nc_err_abort(MSG_NO_MEMORY);
*my_string = '\0';
return my_string;
}
_nc_set_writedir(char *dir)
{
const char *destination;
char actual[PATH_MAX];
if (dir == 0
#ifndef USE_ROOT_ENVIRON
&& use_terminfo_vars()
#endif
)
dir = getenv("TERMINFO");
if (dir != 0)
(void) _nc_tic_dir(dir);
destination = _nc_tic_dir(0);
if (make_db_root(destination) < 0) {
char *home = _nc_home_terminfo();
if (home != 0) {
destination = home;
if (make_db_root(destination) < 0)
_nc_err_abort("%s: permission denied (errno %d)",
destination, errno);
}
}
/*
* Note: because of this code, this logic should be exercised
* *once only* per run.
*/
#if USE_HASHED_DB
make_db_path(actual, destination, sizeof(actual));
#else
if (chdir(_nc_tic_dir(destination)) < 0
|| getcwd(actual, sizeof(actual)) == 0)
_nc_err_abort("%s: not a directory", destination);
#endif
_nc_keep_tic_dir(strdup(actual));
}
/*
* Check for access rights to destination directories
* Create any directories which don't exist.
*
* Note: there's no reason to return the result of make_db_root(), since
* this function is called only in instances where that has to succeed.
*/
static void
check_writeable(int code)
{
static const char dirnames[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
static bool verified[sizeof(dirnames)];
char dir[sizeof(LEAF_FMT)];
char *s = 0;
if (code == 0 || (s = strchr(dirnames, code)) == 0)
_nc_err_abort("Illegal terminfo subdirectory \"" LEAF_FMT "\"", code);
if (verified[s - dirnames])
return;
snprintf(dir, sizeof(dir), LEAF_FMT, code);
if (make_db_root(dir) < 0) {
_nc_err_abort("%s/%s: permission denied", _nc_tic_dir(0), dir);
}
verified[s - dirnames] = TRUE;
}
void _nc_set_writedir(char *dir)
/* set the write directory for compiled entries */
{
const char *destination;
if (dir != 0)
(void) _nc_tic_dir(dir);
else if (getenv("TERMINFO") != NULL)
(void) _nc_tic_dir(getenv("TERMINFO"));
destination = _nc_tic_dir(0);
if (make_directory(destination) < 0)
{
char *home;
/* ncurses extension...fall back on user's private directory */
if ((home = getenv("HOME")) != (char *)NULL &&
strlen(home) + sizeof(PRIVATE_INFO) <= PATH_MAX)
{
char *temp = malloc(sizeof(PRIVATE_INFO) + strlen(home));
if (temp == NULL)
_nc_err_abort("Out of memory");
(void) sprintf(temp, PRIVATE_INFO, home);
destination = temp;
if (make_directory(destination) < 0)
_nc_err_abort("%s: permission denied (errno %d)",
destination, errno);
}
}
/*
* Note: because of this code, this logic should be exercised
* *once only* per run.
*/
if (chdir(_nc_tic_dir(destination)) < 0)
_nc_err_abort("%s: not a directory", destination);
}
static char *
save_string(char *d, const char *const s)
{
size_t have = (size_t) (d - my_string);
size_t need = have + strlen(s) + 2;
if (need > my_length) {
my_string = (char *) _nc_doalloc(my_string, my_length = (need + need));
if (my_string == 0)
_nc_err_abort(MSG_NO_MEMORY);
d = my_string + have;
}
_nc_STRCPY(d, s, my_length - have);
return d + strlen(d);
}
static char *
save_string(char *d, const char *const s)
{
size_t have = (d - my_string);
size_t need = have + strlen(s) + 2;
if (need > my_length) {
my_string = (char *) realloc(my_string, my_length = (need + need));
if (my_string == 0)
_nc_err_abort(MSG_NO_MEMORY);
d = my_string + have;
}
(void) strcpy(d, s);
return d + strlen(d);
}
static void
enqueue(ENTRY * ep)
/* add an entry to the in-core list */
{
ENTRY *newp = _nc_copy_entry(ep);
if (newp == 0)
_nc_err_abort(MSG_NO_MEMORY);
newp->last = _nc_tail;
_nc_tail = newp;
newp->next = 0;
if (newp->last)
newp->last->next = newp;
}
static void file_comparison(int argc, char *argv[])
{
#define MAXCOMPARE 2
/* someday we may allow comparisons on more files */
int filecount = 0;
ENTRY *heads[MAXCOMPARE];
ENTRY *tails[MAXCOMPARE];
ENTRY *qp, *rp;
int i, n;
dump_init((char *)NULL, F_LITERAL, S_TERMINFO, 0, itrace, FALSE);
for (n = 0; n < argc && n < MAXCOMPARE; n++)
{
if (freopen(argv[n], "r", stdin) == NULL)
_nc_err_abort("Can't open %s", argv[n]);
_nc_head = _nc_tail = (ENTRY *)NULL;
/* parse entries out of the source file */
_nc_set_source(argv[n]);
_nc_read_entry_source(stdin, NULL, TRUE, FALSE, NULLHOOK);
if (itrace)
(void) fprintf(stderr, "Resolving file %d...\n", n-0);
/* do use resolution */
if (!_nc_resolve_uses())
{
(void) fprintf(stderr,
"There are unresolved use entries in %s:\n",
argv[n]);
for_entry_list(qp)
if (qp->nuses)
{
(void) fputs(qp->tterm.term_names, stderr);
(void) fputc('\n', stderr);
}
exit(EXIT_FAILURE);
}
heads[filecount] = _nc_head;
tails[filecount] = _nc_tail;
filecount++;
}
_nc_home_terminfo(void)
{
char *result = 0;
#if USE_HOME_TERMINFO
char *home;
if (use_terminfo_vars()) {
if (MyBuffer == 0) {
if ((home = getenv("HOME")) != 0) {
unsigned want = (strlen(home) + sizeof(PRIVATE_INFO));
MyBuffer = typeMalloc(char, want);
if (MyBuffer == 0)
_nc_err_abort(MSG_NO_MEMORY);
(void) sprintf(MyBuffer, PRIVATE_INFO, home);
}
}
result = MyBuffer;
}
char *
_nc_home_terminfo(void)
{
char *home;
static char *temp = 0;
if (use_terminfo_vars()) {
if (temp == 0) {
if ((home = getenv("HOME")) != 0
&& my_length <= PATH_MAX) {
temp = typeMalloc(char, my_length);
if (temp == 0)
_nc_err_abort("Out of memory");
(void) sprintf(temp, PRIVATE_INFO, home);
}
}
return temp;
}
_nc_parse_entry(struct entry *entryp, int literal, bool silent)
{
int token_type;
struct name_table_entry const *entry_ptr;
char *ptr, *base;
bool bad_tc_usage = FALSE;
token_type = _nc_get_token(silent);
if (token_type == EOF)
return (EOF);
if (token_type != NAMES)
_nc_err_abort("Entry does not start with terminal names in column one");
_nc_init_entry(&entryp->tterm);
entryp->cstart = _nc_comment_start;
entryp->cend = _nc_comment_end;
entryp->startline = _nc_start_line;
DEBUG(2, ("Comment range is %ld to %ld", entryp->cstart, entryp->cend));
/*
* Strip off the 2-character termcap name, if present. Originally termcap
* used that as an indexing aid. We can retain 2-character terminfo names,
* but note that they would be lost if we translate to/from termcap. This
* feature is supposedly obsolete since "newer" BSD implementations do not
* use it; however our reference for this feature is SunOS 4.x, which
* implemented it. Note that the resulting terminal type was never the
* 2-character name, but was instead the first alias after that.
*/
ptr = _nc_curr_token.tk_name;
if (_nc_syntax == SYN_TERMCAP
#if NCURSES_XNAMES
&& !_nc_user_definable
#endif
) {
if (ptr[2] == '|') {
ptr += 3;
_nc_curr_token.tk_name[2] = '\0';
}
}
entryp->tterm.str_table = entryp->tterm.term_names = _nc_save_str(ptr);
DEBUG(1, ("Starting '%s'", ptr));
/*
* We do this because the one-token lookahead in the parse loop
* results in the terminal type getting prematurely set to correspond
* to that of the next entry.
*/
_nc_set_type(_nc_first_name(entryp->tterm.term_names));
/* check for overly-long names and aliases */
for (base = entryp->tterm.term_names; (ptr = strchr(base, '|')) != 0;
base = ptr + 1) {
if (ptr - base > MAX_ALIAS) {
_nc_warning("%s `%.*s' may be too long",
(base == entryp->tterm.term_names)
? "primary name"
: "alias",
(int) (ptr - base), base);
}
}
entryp->nuses = 0;
for (token_type = _nc_get_token(silent);
token_type != EOF && token_type != NAMES;
token_type = _nc_get_token(silent)) {
bool is_use = (strcmp(_nc_curr_token.tk_name, "use") == 0);
bool is_tc = !is_use && (strcmp(_nc_curr_token.tk_name, "tc") == 0);
if (is_use || is_tc) {
entryp->uses[entryp->nuses].name = _nc_save_str(_nc_curr_token.tk_valstring);
entryp->uses[entryp->nuses].line = _nc_curr_line;
entryp->nuses++;
if (entryp->nuses > 1 && is_tc) {
BAD_TC_USAGE
}
} else {
_nc_resolve_uses2(bool fullresolve, bool literal)
/* try to resolve all use capabilities */
{
ENTRY *qp, *rp, *lastread = 0;
bool keepgoing;
unsigned i;
int unresolved, total_unresolved, multiples;
DEBUG(2, ("RESOLUTION BEGINNING"));
/*
* Check for multiple occurrences of the same name.
*/
multiples = 0;
for_entry_list(qp) {
int matchcount = 0;
for_entry_list(rp) {
if (qp > rp
&& _nc_entry_match(qp->tterm.term_names, rp->tterm.term_names)) {
matchcount++;
if (matchcount == 1) {
(void) fprintf(stderr, "Name collision between %s",
_nc_first_name(qp->tterm.term_names));
multiples++;
}
if (matchcount >= 1)
(void) fprintf(stderr, " %s", _nc_first_name(rp->tterm.term_names));
}
}
if (matchcount >= 1)
(void) putc('\n', stderr);
}
if (multiples > 0)
return (FALSE);
DEBUG(2, ("NO MULTIPLE NAME OCCURRENCES"));
/*
* First resolution stage: compute link pointers corresponding to names.
*/
total_unresolved = 0;
_nc_curr_col = -1;
for_entry_list(qp) {
unresolved = 0;
for (i = 0; i < qp->nuses; i++) {
bool foundit;
char *child = _nc_first_name(qp->tterm.term_names);
char *lookfor = qp->uses[i].name;
long lookline = qp->uses[i].line;
foundit = FALSE;
_nc_set_type(child);
/* first, try to resolve from in-core records */
for_entry_list(rp) {
if (rp != qp
&& _nc_name_match(rp->tterm.term_names, lookfor, "|")) {
DEBUG(2, ("%s: resolving use=%s (in core)",
child, lookfor));
qp->uses[i].link = rp;
foundit = TRUE;
}
}
/* if that didn't work, try to merge in a compiled entry */
if (!foundit) {
TERMTYPE thisterm;
char filename[PATH_MAX];
memset(&thisterm, 0, sizeof(thisterm));
if (_nc_read_entry(lookfor, filename, &thisterm) == 1) {
DEBUG(2, ("%s: resolving use=%s (compiled)",
child, lookfor));
rp = typeMalloc(ENTRY, 1);
if (rp == 0)
_nc_err_abort(MSG_NO_MEMORY);
rp->tterm = thisterm;
rp->nuses = 0;
rp->next = lastread;
lastread = rp;
qp->uses[i].link = rp;
foundit = TRUE;
}
}
/* no good, mark this one unresolvable and complain */
if (!foundit) {
unresolved++;
total_unresolved++;
_nc_curr_line = lookline;
_nc_warning("resolution of use=%s failed", lookfor);
qp->uses[i].link = 0;
}
}
}
if (total_unresolved) {
/* free entries read in off disk */
_nc_free_entries(lastread);
return (FALSE);
}
DEBUG(2, ("NAME RESOLUTION COMPLETED OK"));
/*
* OK, at this point all (char *) references in `name' members
* have been successfully converted to (ENTRY *) pointers in
* `link' members. Time to do the actual merges.
*/
if (fullresolve) {
do {
TERMTYPE merged;
keepgoing = FALSE;
for_entry_list(qp) {
if (qp->nuses > 0) {
DEBUG(2, ("%s: attempting merge",
_nc_first_name(qp->tterm.term_names)));
/*
* If any of the use entries we're looking for is
* incomplete, punt. We'll catch this entry on a
* subsequent pass.
*/
for (i = 0; i < qp->nuses; i++)
if (qp->uses[i].link->nuses) {
DEBUG(2, ("%s: use entry %d unresolved",
_nc_first_name(qp->tterm.term_names), i));
goto incomplete;
}
/*
* First, make sure there is no garbage in the
* merge block. As a side effect, copy into
* the merged entry the name field and string
* table pointer.
*/
_nc_copy_termtype(&merged, &(qp->tterm));
/*
* Now merge in each use entry in the proper
* (reverse) order.
*/
for (; qp->nuses; qp->nuses--)
_nc_merge_entry(&merged,
&qp->uses[qp->nuses - 1].link->tterm);
/*
* Now merge in the original entry.
*/
_nc_merge_entry(&merged, &qp->tterm);
/*
* Replace the original entry with the merged one.
*/
FreeIfNeeded(qp->tterm.Booleans);
FreeIfNeeded(qp->tterm.Numbers);
FreeIfNeeded(qp->tterm.Strings);
#if NCURSES_XNAMES
FreeIfNeeded(qp->tterm.ext_Names);
#endif
qp->tterm = merged;
_nc_wrap_entry(qp, TRUE);
/*
* We know every entry is resolvable because name resolution
* didn't bomb. So go back for another pass.
*/
/* FALLTHRU */
incomplete:
keepgoing = TRUE;
}
}
} while
(keepgoing);
DEBUG(2, ("MERGES COMPLETED OK"));
}
/*
* We'd like to free entries read in off disk at this point, but can't.
* The merge_entry() code doesn't copy the strings in the use entries,
* it just aliases them. If this ever changes, do a
* free_entries(lastread) here.
*/
DEBUG(2, ("RESOLUTION FINISHED"));
if (fullresolve)
if (_nc_check_termtype != 0) {
_nc_curr_col = -1;
for_entry_list(qp) {
_nc_curr_line = qp->startline;
_nc_set_type(_nc_first_name(qp->tterm.term_names));
_nc_check_termtype2(&qp->tterm, literal);
}
DEBUG(2, ("SANITY CHECK FINISHED"));
}
_nc_get_token(bool silent)
{
static const char terminfo_punct[] = "@%&*!#";
long number;
int type;
int ch;
char *numchk;
char numbuf[80];
unsigned found;
static char buffer[MAX_ENTRY_SIZE];
char *ptr;
int dot_flag = FALSE;
long token_start;
if (pushtype != NO_PUSHBACK) {
int retval = pushtype;
_nc_set_type(pushname);
DEBUG(3, ("pushed-back token: `%s', class %d",
_nc_curr_token.tk_name, pushtype));
pushtype = NO_PUSHBACK;
pushname[0] = '\0';
/* currtok wasn't altered by _nc_push_token() */
return (retval);
}
if (end_of_stream())
return (EOF);
start_token:
token_start = stream_pos();
while ((ch = next_char()) == '\n' || iswhite(ch))
continue;
ch = eat_escaped_newline(ch);
if (ch == EOF)
type = EOF;
else {
/* if this is a termcap entry, skip a leading separator */
if (separator == ':' && ch == ':')
ch = next_char();
if (ch == '.'
#if NCURSES_EXT_FUNCS
&& !_nc_disable_period
#endif
) {
dot_flag = TRUE;
DEBUG(8, ("dot-flag set"));
while ((ch = next_char()) == '.' || iswhite(ch))
continue;
}
if (ch == EOF) {
type = EOF;
goto end_of_token;
}
/* have to make some punctuation chars legal for terminfo */
if (!isalnum(ch)
#if NCURSES_EXT_FUNCS
&& !(ch == '.' && _nc_disable_period)
#endif
&& !strchr(terminfo_punct, (char) ch)) {
if (!silent)
_nc_warning("Illegal character (expected alphanumeric or %s) - %s",
terminfo_punct, unctrl((chtype) ch));
_nc_panic_mode(separator);
goto start_token;
}
ptr = buffer;
*(ptr++) = ch;
if (first_column) {
char *desc;
_nc_comment_start = token_start;
_nc_comment_end = _nc_curr_file_pos;
_nc_start_line = _nc_curr_line;
_nc_syntax = ERR;
while ((ch = next_char()) != '\n') {
if (ch == EOF)
_nc_err_abort("premature EOF");
else if (ch == ':' && last_char() != ',') {
_nc_syntax = SYN_TERMCAP;
separator = ':';
break;
} else if (ch == ',') {
_nc_syntax = SYN_TERMINFO;
separator = ',';
/*
* Fall-through here is not an accident. The idea is that
* if we see a comma, we figure this is terminfo unless we
* subsequently run into a colon -- but we don't stop
* looking for that colon until hitting a newline. This
* allows commas to be embedded in description fields of
* either syntax.
*/
/* FALLTHRU */
} else
ch = eat_escaped_newline(ch);
*ptr++ = ch;
}
ptr[0] = '\0';
if (_nc_syntax == ERR) {
/*
* Grrr...what we ought to do here is barf, complaining that
* the entry is malformed. But because a couple of name fields
* in the 8.2 termcap file end with |\, we just have to assume
* it's termcap syntax.
*/
_nc_syntax = SYN_TERMCAP;
separator = ':';
} else if (_nc_syntax == SYN_TERMINFO) {
/* throw away trailing /, *$/ */
for (--ptr; iswhite(*ptr) || *ptr == ','; ptr--)
continue;
ptr[1] = '\0';
}
/*
* This is the soonest we have the terminal name fetched. Set up
* for following warning messages.
*/
ptr = strchr(buffer, '|');
if (ptr == (char *) NULL)
ptr = buffer + strlen(buffer);
ch = *ptr;
*ptr = '\0';
_nc_set_type(buffer);
*ptr = ch;
/*
* Compute the boundary between the aliases and the description
* field for syntax-checking purposes.
*/
desc = strrchr(buffer, '|');
if (!silent && desc) {
if (*desc == '\0')
_nc_warning("empty longname field");
else if (strchr(desc, ' ') == (char *) NULL)
_nc_warning("older tic versions may treat the description field as an alias");
}
if (!desc)
desc = buffer + strlen(buffer);
/*
* Whitespace in a name field other than the long name can confuse
* rdist and some termcap tools. Slashes are a no-no. Other
* special characters can be dangerous due to shell expansion.
*/
for (ptr = buffer; ptr < desc; ptr++) {
if (isspace(CharOf(*ptr))) {
if (!silent)
_nc_warning("whitespace in name or alias field");
break;
} else if (*ptr == '/') {
if (!silent)
_nc_warning("slashes aren't allowed in names or aliases");
break;
} else if (strchr("$[]!*?", *ptr)) {
if (!silent)
_nc_warning("dubious character `%c' in name or alias field", *ptr);
break;
}
}
ptr = buffer;
_nc_curr_token.tk_name = buffer;
type = NAMES;
} else {
while ((ch = next_char()) != EOF) {
if (!isalnum(ch)) {
if (_nc_syntax == SYN_TERMINFO) {
if (ch != '_')
break;
} else { /* allow ';' for "k;" */
if (ch != ';')
break;
}
}
*(ptr++) = ch;
}
*ptr++ = '\0';
switch (ch) {
case ',':
case ':':
if (ch != separator)
_nc_err_abort("Separator inconsistent with syntax");
_nc_curr_token.tk_name = buffer;
type = BOOLEAN;
break;
case '@':
if ((ch = next_char()) != separator && !silent)
_nc_warning("Missing separator after `%s', have %s",
buffer, unctrl((chtype) ch));
_nc_curr_token.tk_name = buffer;
type = CANCEL;
break;
case '#':
found = 0;
while (isalnum(ch = next_char())) {
numbuf[found++] = ch;
if (found >= sizeof(numbuf) - 1)
break;
}
numbuf[found] = '\0';
number = strtol(numbuf, &numchk, 0);
if (!silent) {
if (numchk == numbuf)
_nc_warning("no value given for `%s'", buffer);
if ((*numchk != '\0') || (ch != separator))
_nc_warning("Missing separator");
}
_nc_curr_token.tk_name = buffer;
_nc_curr_token.tk_valnumber = number;
type = NUMBER;
break;
case '=':
ch = _nc_trans_string(ptr, buffer + sizeof(buffer));
if (!silent && ch != separator)
_nc_warning("Missing separator");
_nc_curr_token.tk_name = buffer;
_nc_curr_token.tk_valstring = ptr;
type = STRING;
break;
case EOF:
type = EOF;
break;
default:
/* just to get rid of the compiler warning */
type = UNDEF;
if (!silent)
_nc_warning("Illegal character - %s", unctrl((chtype) ch));
}
} /* end else (first_column == FALSE) */
} /* end else (ch != EOF) */
end_of_token:
#ifdef TRACE
if (dot_flag == TRUE)
DEBUG(8, ("Commented out "));
if (_nc_tracing >= DEBUG_LEVEL(7)) {
switch (type) {
case BOOLEAN:
_tracef("Token: Boolean; name='%s'",
_nc_curr_token.tk_name);
break;
case NUMBER:
_tracef("Token: Number; name='%s', value=%d",
_nc_curr_token.tk_name,
_nc_curr_token.tk_valnumber);
break;
case STRING:
_tracef("Token: String; name='%s', value=%s",
_nc_curr_token.tk_name,
_nc_visbuf(_nc_curr_token.tk_valstring));
break;
case CANCEL:
_tracef("Token: Cancel; name='%s'",
_nc_curr_token.tk_name);
break;
case NAMES:
_tracef("Token: Names; value='%s'",
_nc_curr_token.tk_name);
break;
case EOF:
_tracef("Token: End of file");
break;
default:
_nc_warning("Bad token type");
}
}
#endif
if (dot_flag == TRUE) /* if commented out, use the next one */
type = _nc_get_token(silent);
DEBUG(3, ("token: `%s', class %d",
_nc_curr_token.tk_name != 0 ? _nc_curr_token.tk_name :
"<null>",
type));
return (type);
}
static void
postprocess_termcap(TERMTYPE * tp, bool has_base)
{
char buf[MAX_LINE * 2 + 2];
string_desc result;
/*
* TERMCAP DEFAULTS AND OBSOLETE-CAPABILITY TRANSLATIONS
*
* This first part of the code is the functional inverse of the
* fragment in capdefaults.c.
* ----------------------------------------------------------------------
*/
/* if there was a tc entry, assume we picked up defaults via that */
if (!has_base) {
if (WANTED(init_3string) && termcap_init2)
init_3string = _nc_save_str(termcap_init2);
if (WANTED(reset_2string) && termcap_reset)
reset_2string = _nc_save_str(termcap_reset);
if (WANTED(carriage_return)) {
if (carriage_return_delay > 0) {
sprintf(buf, "%s$<%d>", C_CR, carriage_return_delay);
carriage_return = _nc_save_str(buf);
} else
carriage_return = _nc_save_str(C_CR);
}
if (WANTED(cursor_left)) {
if (backspace_delay > 0) {
sprintf(buf, "%s$<%d>", C_BS, backspace_delay);
cursor_left = _nc_save_str(buf);
} else if (backspaces_with_bs == 1)
cursor_left = _nc_save_str(C_BS);
else if (PRESENT(backspace_if_not_bs))
cursor_left = backspace_if_not_bs;
}
/* vi doesn't use "do", but it does seems to use nl (or '\n') instead */
if (WANTED(cursor_down)) {
if (PRESENT(linefeed_if_not_lf))
cursor_down = linefeed_if_not_lf;
else if (linefeed_is_newline != 1) {
if (new_line_delay > 0) {
sprintf(buf, "%s$<%d>", C_LF, new_line_delay);
cursor_down = _nc_save_str(buf);
} else
cursor_down = _nc_save_str(C_LF);
}
}
if (WANTED(scroll_forward) && crt_no_scrolling != 1) {
if (PRESENT(linefeed_if_not_lf))
cursor_down = linefeed_if_not_lf;
else if (linefeed_is_newline != 1) {
if (new_line_delay > 0) {
sprintf(buf, "%s$<%d>", C_LF, new_line_delay);
scroll_forward = _nc_save_str(buf);
} else
scroll_forward = _nc_save_str(C_LF);
}
}
if (WANTED(newline)) {
if (linefeed_is_newline == 1) {
if (new_line_delay > 0) {
sprintf(buf, "%s$<%d>", C_LF, new_line_delay);
newline = _nc_save_str(buf);
} else
newline = _nc_save_str(C_LF);
} else if (PRESENT(carriage_return) && PRESENT(scroll_forward)) {
_nc_str_init(&result, buf, sizeof(buf));
if (_nc_safe_strcat(&result, carriage_return)
&& _nc_safe_strcat(&result, scroll_forward))
newline = _nc_save_str(buf);
} else if (PRESENT(carriage_return) && PRESENT(cursor_down)) {
_nc_str_init(&result, buf, sizeof(buf));
if (_nc_safe_strcat(&result, carriage_return)
&& _nc_safe_strcat(&result, cursor_down))
newline = _nc_save_str(buf);
}
}
}
/*
* Inverse of capdefaults.c code ends here.
* ----------------------------------------------------------------------
*
* TERMCAP-TO TERMINFO MAPPINGS FOR SOURCE TRANSLATION
*
* These translations will *not* be inverted by tgetent().
*/
if (!has_base) {
/*
* We wait until now to decide if we've got a working cr because even
* one that doesn't work can be used for newline. Unfortunately the
* space allocated for it is wasted.
*/
if (return_does_clr_eol == 1 || no_correctly_working_cr == 1)
carriage_return = ABSENT_STRING;
/*
* Supposedly most termcap entries have ta now and '\t' is no longer a
* default, but it doesn't seem to be true...
*/
if (WANTED(tab)) {
if (horizontal_tab_delay > 0) {
sprintf(buf, "%s$<%d>", C_HT, horizontal_tab_delay);
tab = _nc_save_str(buf);
} else
tab = _nc_save_str(C_HT);
}
if (init_tabs == ABSENT_NUMERIC && has_hardware_tabs == TRUE)
init_tabs = 8;
/*
* Assume we can beep with ^G unless we're given bl@.
*/
if (WANTED(bell))
bell = _nc_save_str("\007");
}
/*
* Translate the old termcap :pt: capability to it#8 + ht=\t
*/
if (has_hardware_tabs == TRUE) {
if (init_tabs != 8 && init_tabs != ABSENT_NUMERIC)
_nc_warning("hardware tabs with a width other than 8: %d", init_tabs);
else {
if (tab && _nc_capcmp(tab, C_HT))
_nc_warning("hardware tabs with a non-^I tab string %s",
_nc_visbuf(tab));
else {
if (WANTED(tab))
tab = _nc_save_str(C_HT);
init_tabs = 8;
}
}
}
/*
* Now translate the ko capability, if there is one. This
* isn't from mytinfo...
*/
if (PRESENT(other_non_function_keys)) {
char *base = other_non_function_keys;
char *bp, *cp, *dp;
struct name_table_entry const *from_ptr;
struct name_table_entry const *to_ptr;
assoc const *ap;
char buf2[MAX_TERMINFO_LENGTH];
bool foundim;
/* we're going to use this for a special case later */
dp = strchr(other_non_function_keys, 'i');
foundim = (dp != 0) && (dp[1] == 'm');
/* look at each comma-separated capability in the ko string... */
for (base = other_non_function_keys;
(cp = strchr(base, ',')) != 0;
base = cp + 1) {
size_t len = cp - base;
for (ap = ko_xlate; ap->from; ap++)
if (len == strlen(ap->from)
&& strncmp(ap->from, base, len) == 0)
break;
if (!ap->to) {
_nc_warning("unknown capability `%.*s' in ko string",
(int) len, base);
continue;
} else if (ap->to == CANCELLED_STRING) /* ignore it */
continue;
/* now we know we found a match in ko_table, so... */
from_ptr = _nc_find_entry(ap->from, _nc_cap_hash_table);
to_ptr = _nc_find_entry(ap->to, _nc_info_hash_table);
if (!from_ptr || !to_ptr) /* should never happen! */
_nc_err_abort("ko translation table is invalid, I give up");
if (WANTED(tp->Strings[from_ptr->nte_index])) {
_nc_warning("no value for ko capability %s", ap->from);
continue;
}
if (tp->Strings[to_ptr->nte_index]) {
/* There's no point in warning about it if it's the same
* string; that's just an inefficiency.
*/
if (strcmp(
tp->Strings[from_ptr->nte_index],
tp->Strings[to_ptr->nte_index]) != 0)
_nc_warning("%s (%s) already has an explicit value %s, ignoring ko",
ap->to, ap->from,
_nc_visbuf(tp->Strings[to_ptr->nte_index]));
continue;
}
/*
* The magic moment -- copy the mapped key string over,
* stripping out padding.
*/
for (dp = buf2, bp = tp->Strings[from_ptr->nte_index]; *bp; bp++) {
if (bp[0] == '$' && bp[1] == '<') {
while (*bp && *bp != '>') {
++bp;
}
} else
*dp++ = *bp;
}
*dp++ = '\0';
tp->Strings[to_ptr->nte_index] = _nc_save_str(buf2);
}
/*
* Note: ko=im and ko=ic both want to grab the `Insert'
* keycap. There's a kich1 but no ksmir, so the ic capability
* got mapped to kich1 and im to kIC to avoid a collision.
* If the description has im but not ic, hack kIC back to kich1.
*/
if (foundim && WANTED(key_ic) && key_sic) {
key_ic = key_sic;
key_sic = ABSENT_STRING;
}
}
if (!hard_copy) {
if (WANTED(key_backspace))
key_backspace = _nc_save_str(C_BS);
if (WANTED(key_left))
key_left = _nc_save_str(C_BS);
if (WANTED(key_down))
key_down = _nc_save_str(C_LF);
}
/*
* Translate XENIX forms characters.
*/
if (PRESENT(acs_ulcorner) ||
PRESENT(acs_llcorner) ||
PRESENT(acs_urcorner) ||
PRESENT(acs_lrcorner) ||
PRESENT(acs_ltee) ||
PRESENT(acs_rtee) ||
PRESENT(acs_btee) ||
PRESENT(acs_ttee) ||
PRESENT(acs_hline) ||
PRESENT(acs_vline) ||
PRESENT(acs_plus)) {
char buf2[MAX_TERMCAP_LENGTH];
_nc_str_init(&result, buf2, sizeof(buf2));
_nc_safe_strcat(&result, acs_chars);
append_acs (&result, 'j', acs_lrcorner);
append_acs (&result, 'k', acs_urcorner);
append_acs (&result, 'l', acs_ulcorner);
append_acs (&result, 'm', acs_llcorner);
append_acs (&result, 'n', acs_plus);
append_acs (&result, 'q', acs_hline);
append_acs (&result, 't', acs_ltee);
append_acs (&result, 'u', acs_rtee);
append_acs (&result, 'v', acs_btee);
append_acs (&result, 'w', acs_ttee);
append_acs (&result, 'x', acs_vline);
if (buf2[0]) {
acs_chars = _nc_save_str(buf2);
_nc_warning("acsc string synthesized from XENIX capabilities");
}
} else if (acs_chars == 0
&& enter_alt_charset_mode != 0
&& exit_alt_charset_mode != 0) {
acs_chars =
_nc_save_str("``aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~");
}
}
int
_nc_parse_entry(struct entry *entryp, int literal, bool silent)
{
int token_type;
struct name_table_entry const *entry_ptr;
char *ptr, *base;
token_type = _nc_get_token();
if (token_type == EOF)
return (EOF);
if (token_type != NAMES)
_nc_err_abort("Entry does not start with terminal names in column one");
_nc_init_entry(&entryp->tterm);
entryp->cstart = _nc_comment_start;
entryp->cend = _nc_comment_end;
entryp->startline = _nc_start_line;
DEBUG(2, ("Comment range is %ld to %ld", entryp->cstart, entryp->cend));
/* junk the 2-character termcap name, if present */
ptr = _nc_curr_token.tk_name;
if (ptr[2] == '|') {
ptr = _nc_curr_token.tk_name + 3;
_nc_curr_token.tk_name[2] = '\0';
}
entryp->tterm.str_table = entryp->tterm.term_names = _nc_save_str(ptr);
DEBUG(1, ("Starting '%s'", ptr));
/*
* We do this because the one-token lookahead in the parse loop
* results in the terminal type getting prematurely set to correspond
* to that of the next entry.
*/
_nc_set_type(_nc_first_name(entryp->tterm.term_names));
/* check for overly-long names and aliases */
for (base = entryp->tterm.term_names; (ptr = strchr(base, '|')) != 0;
base = ptr + 1) {
if (ptr - base > MAX_ALIAS) {
_nc_warning("%s `%.*s' may be too long",
(base == entryp->tterm.term_names)
? "primary name"
: "alias",
ptr - base, base);
}
}
entryp->nuses = 0;
for (token_type = _nc_get_token();
token_type != EOF && token_type != NAMES;
token_type = _nc_get_token()) {
if (strcmp(_nc_curr_token.tk_name, "use") == 0
|| strcmp(_nc_curr_token.tk_name, "tc") == 0) {
entryp->uses[entryp->nuses].name = _nc_save_str(_nc_curr_token.tk_valstring);
entryp->uses[entryp->nuses].line = _nc_curr_line;
entryp->nuses++;
} else {
/* normal token lookup */
entry_ptr = _nc_find_entry(_nc_curr_token.tk_name,
_nc_syntax ? _nc_cap_hash_table : _nc_info_hash_table);
/*
* Our kluge to handle aliasing. The reason it's done
* this ugly way, with a linear search, is so the hashing
* machinery doesn't have to be made really complicated
* (also we get better warnings this way). No point in
* making this case fast, aliased caps aren't common now
* and will get rarer.
*/
if (entry_ptr == NOTFOUND) {
const struct alias *ap;
if (_nc_syntax == SYN_TERMCAP) {
for (ap = _nc_capalias_table; ap->from; ap++)
if (strcmp(ap->from, _nc_curr_token.tk_name) == 0) {
if (ap->to == (char *) 0) {
_nc_warning("%s (%s termcap extension) ignored",
ap->from, ap->source);
goto nexttok;
}
entry_ptr = _nc_find_entry(ap->to, _nc_cap_hash_table);
if (entry_ptr && !silent)
_nc_warning("%s (%s termcap extension) aliased to %s",
ap->from, ap->source, ap->to);
break;
}
} else { /* if (_nc_syntax == SYN_TERMINFO) */
for (ap = _nc_infoalias_table; ap->from; ap++)
if (strcmp(ap->from, _nc_curr_token.tk_name) == 0) {
if (ap->to == (char *) 0) {
_nc_warning("%s (%s terminfo extension) ignored",
ap->from, ap->source);
goto nexttok;
}
entry_ptr = _nc_find_entry(ap->to, _nc_info_hash_table);
if (entry_ptr && !silent)
_nc_warning("%s (%s terminfo extension) aliased to %s",
ap->from, ap->source, ap->to);
break;
}
if (entry_ptr == NOTFOUND) {
entry_ptr = lookup_fullname(_nc_curr_token.tk_name);
}
}
}
#if NCURSES_XNAMES
/*
* If we have extended-names active, we will automatically
* define a name based on its context.
*/
if (entry_ptr == NOTFOUND
&& _nc_user_definable
&& (entry_ptr = _nc_extend_names(entryp,
_nc_curr_token.tk_name,
token_type)) != 0) {
if (_nc_tracing >= DEBUG_LEVEL(1))
_nc_warning("extended capability '%s'", _nc_curr_token.tk_name);
}
#endif /* NCURSES_XNAMES */
/* can't find this cap name, not even as an alias */
if (entry_ptr == NOTFOUND) {
if (!silent)
_nc_warning("unknown capability '%s'",
_nc_curr_token.tk_name);
continue;
}
/* deal with bad type/value combinations. */
if (token_type != CANCEL && entry_ptr->nte_type != token_type) {
/*
* Nasty special cases here handle situations in which type
* information can resolve name clashes. Normal lookup
* finds the last instance in the capability table of a
* given name, regardless of type. find_type_entry looks
* for a first matching instance with given type. So as
* long as all ambiguous names occur in pairs of distinct
* type, this will do the job.
*/
/* tell max_attributes from arrow_key_map */
if (token_type == NUMBER && !strcmp("ma", _nc_curr_token.tk_name))
entry_ptr = _nc_find_type_entry("ma", NUMBER,
_nc_get_table(_nc_syntax
!= 0));
/* map terminfo's string MT to MT */
else if (token_type == STRING && !strcmp("MT", _nc_curr_token.tk_name))
entry_ptr = _nc_find_type_entry("MT", STRING,
_nc_get_table(_nc_syntax
!= 0));
/* treat strings without following "=" as empty strings */
else if (token_type == BOOLEAN && entry_ptr->nte_type == STRING)
token_type = STRING;
/* we couldn't recover; skip this token */
else {
if (!silent) {
const char *type_name;
switch (entry_ptr->nte_type) {
case BOOLEAN:
type_name = "boolean";
break;
case STRING:
type_name = "string";
break;
case NUMBER:
type_name = "numeric";
break;
default:
type_name = "unknown";
break;
}
_nc_warning("wrong type used for %s capability '%s'",
type_name, _nc_curr_token.tk_name);
}
continue;
}
}
/* now we know that the type/value combination is OK */
switch (token_type) {
case CANCEL:
switch (entry_ptr->nte_type) {
case BOOLEAN:
entryp->tterm.Booleans[entry_ptr->nte_index] = CANCELLED_BOOLEAN;
break;
case NUMBER:
entryp->tterm.Numbers[entry_ptr->nte_index] = CANCELLED_NUMERIC;
break;
case STRING:
entryp->tterm.Strings[entry_ptr->nte_index] = CANCELLED_STRING;
break;
}
break;
case BOOLEAN:
entryp->tterm.Booleans[entry_ptr->nte_index] = TRUE;
break;
case NUMBER:
entryp->tterm.Numbers[entry_ptr->nte_index] =
_nc_curr_token.tk_valnumber;
break;
case STRING:
ptr = _nc_curr_token.tk_valstring;
if (_nc_syntax == SYN_TERMCAP)
ptr = _nc_captoinfo(_nc_curr_token.tk_name,
ptr,
parametrized[entry_ptr->nte_index]);
entryp->tterm.Strings[entry_ptr->nte_index] = _nc_save_str(ptr);
break;
default:
if (!silent)
_nc_warning("unknown token type");
_nc_panic_mode((_nc_syntax == SYN_TERMCAP) ? ':' : ',');
continue;
}
} /* end else cur_token.name != "use" */
nexttok:
continue; /* cannot have a label w/o statement */
} /* endwhile (not EOF and not NAMES) */
_nc_push_token(token_type);
_nc_set_type(_nc_first_name(entryp->tterm.term_names));
/*
* Try to deduce as much as possible from extension capabilities
* (this includes obsolete BSD capabilities). Sigh...it would be more
* space-efficient to call this after use resolution, but it has
* to be done before entry allocation is wrapped up.
*/
if (!literal) {
if (_nc_syntax == SYN_TERMCAP) {
bool has_base_entry = FALSE;
int i;
/*
* Don't insert defaults if this is a `+' entry meant only
* for inclusion in other entries (not sure termcap ever
* had these, actually).
*/
if (strchr(entryp->tterm.term_names, '+'))
has_base_entry = TRUE;
else
/*
* Otherwise, look for a base entry that will already
* have picked up defaults via translation.
*/
for (i = 0; i < entryp->nuses; i++)
if (!strchr((char *) entryp->uses[i].name, '+'))
has_base_entry = TRUE;
postprocess_termcap(&entryp->tterm, has_base_entry);
} else
postprocess_terminfo(&entryp->tterm);
}
_nc_wrap_entry(entryp);
return (OK);
}
_nc_trans_string(char *ptr, char *last)
{
int count = 0;
int number = 0;
int i, c;
chtype ch, last_ch = '\0';
bool ignored = FALSE;
bool long_warning = FALSE;
while ((ch = c = next_char()) != (chtype) separator && c != EOF) {
if (ptr == (last - 1))
break;
if ((_nc_syntax == SYN_TERMCAP) && c == '\n')
break;
if (ch == '^' && last_ch != '%') {
ch = c = next_char();
if (c == EOF)
_nc_err_abort("Premature EOF");
if (!(is7bits(ch) && isprint(ch))) {
_nc_warning("Illegal ^ character - %s", unctrl(ch));
}
if (ch == '?') {
*(ptr++) = '\177';
if (_nc_tracing)
_nc_warning("Allow ^? as synonym for \\177");
} else {
if ((ch &= 037) == 0)
ch = 128;
*(ptr++) = (char) (ch);
}
} else if (ch == '\\') {
ch = c = next_char();
if (c == EOF)
_nc_err_abort("Premature EOF");
if (ch >= '0' && ch <= '7') {
number = ch - '0';
for (i = 0; i < 2; i++) {
ch = c = next_char();
if (c == EOF)
_nc_err_abort("Premature EOF");
if (c < '0' || c > '7') {
if (isdigit(c)) {
_nc_warning("Non-octal digit `%c' in \\ sequence", c);
/* allow the digit; it'll do less harm */
} else {
push_back((char) c);
break;
}
}
number = number * 8 + c - '0';
}
if (number == 0)
number = 0200;
*(ptr++) = (char) number;
} else {
switch (c) {
case 'E':
case 'e':
*(ptr++) = '\033';
break;
case 'a':
*(ptr++) = '\007';
break;
case 'l':
case 'n':
*(ptr++) = '\n';
break;
case 'r':
*(ptr++) = '\r';
break;
case 'b':
*(ptr++) = '\010';
break;
case 's':
*(ptr++) = ' ';
break;
case 'f':
*(ptr++) = '\014';
break;
case 't':
*(ptr++) = '\t';
break;
case '\\':
*(ptr++) = '\\';
break;
case '^':
*(ptr++) = '^';
break;
case ',':
*(ptr++) = ',';
break;
case ':':
*(ptr++) = ':';
break;
case '\n':
continue;
default:
_nc_warning("Illegal character %s in \\ sequence",
unctrl(ch));
*(ptr++) = (char) ch;
} /* endswitch (ch) */
} /* endelse (ch < '0' || ch > '7') */
}
/* end else if (ch == '\\') */
else if (ch == '\n' && (_nc_syntax == SYN_TERMINFO)) {
/* newlines embedded in a terminfo string are ignored */
ignored = TRUE;
} else {
*(ptr++) = (char) ch;
}
if (!ignored) {
last_ch = ch;
count++;
}
ignored = FALSE;
if (count > MAXCAPLEN && !long_warning) {
_nc_warning("Very long string found. Missing separator?");
long_warning = TRUE;
}
} /* end while */
*ptr = '\0';
return (ch);
}
static int
next_char(void)
{
static char *result;
static size_t allocated;
int the_char;
if (!yyin) {
if (result != 0) {
FreeAndNull(result);
FreeAndNull(pushname);
allocated = 0;
}
/*
* An string with an embedded null will truncate the input. This is
* intentional (we don't read binary files here).
*/
if (bufptr == 0 || *bufptr == '\0')
return (EOF);
if (*bufptr == '\n') {
_nc_curr_line++;
_nc_curr_col = 0;
} else if (*bufptr == '\t') {
_nc_curr_col = (_nc_curr_col | 7);
}
} else if (!bufptr || !*bufptr) {
/*
* In theory this could be recoded to do its I/O one character at a
* time, saving the buffer space. In practice, this turns out to be
* quite hard to get completely right. Try it and see. If you
* succeed, don't forget to hack push_back() correspondingly.
*/
size_t used;
size_t len;
do {
bufstart = 0;
used = 0;
do {
if (used + (LEXBUFSIZ / 4) >= allocated) {
allocated += (allocated + LEXBUFSIZ);
result = typeRealloc(char, allocated, result);
if (result == 0)
return (EOF);
bufstart = result;
}
if (used == 0)
_nc_curr_file_pos = ftell(yyin);
if (fgets(result + used, (int) (allocated - used), yyin) != 0) {
bufstart = result;
if (used == 0) {
if (_nc_curr_line == 0
&& IS_TIC_MAGIC(result)) {
_nc_err_abort("This is a compiled terminal description, not a source");
}
_nc_curr_line++;
_nc_curr_col = 0;
}
} else {
if (used != 0)
strcat(result, "\n");
}
if ((bufptr = bufstart) != 0) {
used = strlen(bufptr);
while (iswhite(*bufptr)) {
if (*bufptr == '\t') {
_nc_curr_col = (_nc_curr_col | 7) + 1;
} else {
_nc_curr_col++;
}
bufptr++;
}
/*
* Treat a trailing <cr><lf> the same as a <newline> so we
* can read files on OS/2, etc.
*/
if ((len = strlen(bufptr)) > 1) {
if (bufptr[len - 1] == '\n'
&& bufptr[len - 2] == '\r') {
len--;
bufptr[len - 1] = '\n';
bufptr[len] = '\0';
}
}
} else {
return (EOF);
}
} while (bufptr[len - 1] != '\n'); /* complete a line */
} while (result[0] == '#'); /* ignore comments */