/****************************************************************************
- * Copyright (c) 1998-2010,2011 Free Software Foundation, Inc. *
+ * Copyright 2018-2023,2024 Thomas E. Dickey *
+ * Copyright 1998-2016,2017 Free Software Foundation, Inc. *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the *
#include <tic.h>
-MODULE_ID("$Id: comp_parse.c,v 1.75 2011/08/13 19:37:17 tom Exp $")
+MODULE_ID("$Id: comp_parse.c,v 1.134 2024/02/10 15:52:11 tom Exp $")
-static void sanity_check2(TERMTYPE *, bool);
-NCURSES_IMPEXP void NCURSES_API(*_nc_check_termtype2) (TERMTYPE *, bool) = sanity_check2;
+static void sanity_check2(TERMTYPE2 *, bool);
+NCURSES_IMPEXP void (NCURSES_API *_nc_check_termtype2) (TERMTYPE2 *, bool) = sanity_check2;
-/* obsolete: 20040705 */
-static void sanity_check(TERMTYPE *);
-NCURSES_IMPEXP void NCURSES_API(*_nc_check_termtype) (TERMTYPE *) = sanity_check;
-
-static void fixup_acsc(TERMTYPE *, bool);
+static void fixup_acsc(TERMTYPE2 *, int);
static void
enqueue(ENTRY * ep)
/* add an entry to the in-core list */
{
- ENTRY *newp = _nc_copy_entry(ep);
+ ENTRY *newp;
+
+ DEBUG(2, (T_CALLED("enqueue(ep=%p)"), (void *) ep));
+ newp = _nc_copy_entry(ep);
if (newp == 0)
_nc_err_abort(MSG_NO_MEMORY);
newp->next = 0;
if (newp->last)
newp->last->next = newp;
+ DEBUG(2, (T_RETURN("")));
}
+#define NAMEBUFFER_SIZE (MAX_NAME_SIZE + 2)
+
static char *
force_bar(char *dst, char *src)
{
size_t len = strlen(src);
if (len > MAX_NAME_SIZE)
len = MAX_NAME_SIZE;
- (void) strncpy(dst, src, len);
- (void) strcpy(dst + len, "|");
+ _nc_STRNCPY(dst, src, MAX_NAME_SIZE);
+ _nc_STRCPY(dst + len, "|", NAMEBUFFER_SIZE - len);
src = dst;
}
return src;
}
#define ForceBar(dst, src) ((strchr(src, '|') == 0) ? force_bar(dst, src) : src)
-#if USE_TERMCAP && NCURSES_XNAMES
+#if NCURSES_USE_TERMCAP && NCURSES_XNAMES
static char *
skip_index(char *name)
{
}
#endif
-NCURSES_EXPORT(bool)
-_nc_entry_match(char *n1, char *n2)
-/* do any of the aliases in a pair of terminal names match? */
+static bool
+check_collisions(char *n1, char *n2, int counter)
{
char *pstart, *qstart, *pend, *qend;
- char nc1[MAX_NAME_SIZE + 2];
- char nc2[MAX_NAME_SIZE + 2];
+ char nc1[NAMEBUFFER_SIZE];
+ char nc2[NAMEBUFFER_SIZE];
n1 = ForceBar(nc1, n1);
n2 = ForceBar(nc2, n2);
-#if USE_TERMCAP && NCURSES_XNAMES
+#if NCURSES_USE_TERMCAP && NCURSES_XNAMES
if ((_nc_syntax == SYN_TERMCAP) && _nc_user_definable) {
n1 = skip_index(n1);
n2 = skip_index(n2);
}
#endif
- for (pstart = n1; (pend = strchr(pstart, '|')); pstart = pend + 1)
- for (qstart = n2; (qend = strchr(qstart, '|')); qstart = qend + 1)
+ for (pstart = n1; (pend = strchr(pstart, '|')); pstart = pend + 1) {
+ for (qstart = n2; (qend = strchr(qstart, '|')); qstart = qend + 1) {
if ((pend - pstart == qend - qstart)
- && memcmp(pstart, qstart, (size_t) (pend - pstart)) == 0)
+ && memcmp(pstart, qstart, (size_t) (pend - pstart)) == 0) {
+ if (counter > 0)
+ (void) fprintf(stderr, "Name collision '%.*s' between\n",
+ (int) (pend - pstart), pstart);
return (TRUE);
+ }
+ }
+ }
return (FALSE);
}
+static char *
+next_name(char *name)
+{
+ if (*name != '\0')
+ ++name;
+ return name;
+}
+
+static char *
+name_ending(char *name)
+{
+ if (*name == '\0') {
+ name = 0;
+ } else {
+ while (*name != '\0' && *name != '|')
+ ++name;
+ }
+ return name;
+}
+
+/*
+ * Essentially, find the conflict reported in check_collisions() and remove
+ * it from the second name, unless that happens to be the last alias.
+ */
+static bool
+remove_collision(char *n1, char *n2)
+{
+ char *p2 = n2;
+ char *pstart, *qstart, *pend, *qend;
+ bool removed = FALSE;
+
+#if NCURSES_USE_TERMCAP && NCURSES_XNAMES
+ if ((_nc_syntax == SYN_TERMCAP) && _nc_user_definable) {
+ n1 = skip_index(n1);
+ p2 = n2 = skip_index(n2);
+ }
+#endif
+
+ for (pstart = n1; (pend = name_ending(pstart)); pstart = next_name(pend)) {
+ for (qstart = n2; (qend = name_ending(qstart)); qstart = next_name(qend)) {
+ if ((pend - pstart == qend - qstart)
+ && memcmp(pstart, qstart, (size_t) (pend - pstart)) == 0) {
+ if (qstart != p2 || *qend == '|') {
+ if (*qend == '|')
+ ++qend;
+ while ((*qstart++ = *qend++) != '\0') ;
+ fprintf(stderr, "...now\t%s\n", p2);
+ removed = TRUE;
+ } else {
+ fprintf(stderr, "Cannot remove alias '%.*s'\n",
+ (int) (qend - qstart), qstart);
+ }
+ break;
+ }
+ }
+ }
+
+ return removed;
+}
+
+/* do any of the aliases in a pair of terminal names match? */
+NCURSES_EXPORT(bool)
+_nc_entry_match(char *n1, char *n2)
+{
+ return check_collisions(n1, n2, 0);
+}
+
/****************************************************************************
*
* Entry compiler and resolution logic
bool oldsuppress = _nc_suppress_warnings;
int immediate = 0;
+ DEBUG(2,
+ (T_CALLED("_nc_read_entry_source("
+ "file=%p, buf=%p, literal=%d, silent=%d, hook=%#"
+ PRIxPTR ")"),
+ (void *) fp, buf, literal, silent, CASTxPTR(hook)));
+
if (silent)
_nc_suppress_warnings = TRUE; /* shut the lexer up, too */
FreeIfNeeded(thisentry.tterm.Booleans);
FreeIfNeeded(thisentry.tterm.Numbers);
FreeIfNeeded(thisentry.tterm.Strings);
+ FreeIfNeeded(thisentry.tterm.str_table);
#if NCURSES_XNAMES
FreeIfNeeded(thisentry.tterm.ext_Names);
+ FreeIfNeeded(thisentry.tterm.ext_str_table);
#endif
}
}
if (_nc_tail) {
/* set up the head pointer */
- for (_nc_head = _nc_tail; _nc_head->last; _nc_head = _nc_head->last)
- continue;
+ for (_nc_head = _nc_tail; _nc_head->last; _nc_head = _nc_head->last) {
+ /* EMPTY */ ;
+ }
- DEBUG(1, ("head = %s", _nc_head->tterm.term_names));
- DEBUG(1, ("tail = %s", _nc_tail->tterm.term_names));
+ DEBUG(2, ("head = %s", _nc_head->tterm.term_names));
+ DEBUG(2, ("tail = %s", _nc_tail->tterm.term_names));
}
#ifdef TRACE
else if (!immediate)
- DEBUG(1, ("no entries parsed"));
+ DEBUG(2, ("no entries parsed"));
#endif
_nc_suppress_warnings = oldsuppress;
+ DEBUG(2, (T_RETURN("")));
+}
+
+#if 0 && NCURSES_XNAMES
+static unsigned
+find_capname(TERMTYPE2 *p, const char *name)
+{
+ unsigned num_names = NUM_EXT_NAMES(p);
+ unsigned n;
+ if (name != 0) {
+ for (n = 0; n < num_names; ++n) {
+ if (!strcmp(p->ext_Names[n], name))
+ break;
+ }
+ } else {
+ n = num_names + 1;
+ }
+ return n;
+}
+
+static int
+extended_captype(TERMTYPE2 *p, unsigned which)
+{
+ int result = UNDEF;
+ unsigned limit = 0;
+ limit += p->ext_Booleans;
+ if (limit != 0 && which < limit) {
+ result = BOOLEAN;
+ } else {
+ limit += p->ext_Numbers;
+ if (limit != 0 && which < limit) {
+ result = NUMBER;
+ } else {
+ limit += p->ext_Strings;
+ if (limit != 0 && which < limit) {
+ result = ((p->Strings[STRCOUNT + which] != CANCELLED_STRING)
+ ? STRING
+ : CANCEL);
+ } else if (which >= limit) {
+ result = CANCEL;
+ }
+ }
+ }
+ return result;
+}
+
+static const char *
+name_of_captype(int which)
+{
+ const char *result = "?";
+ switch (which) {
+ case BOOLEAN:
+ result = "boolean";
+ break;
+ case NUMBER:
+ result = "number";
+ break;
+ case STRING:
+ result = "string";
+ break;
+ }
+ return result;
}
+#define valid_TERMTYPE2(p) \
+ ((p) != 0 && \
+ (p)->term_names != 0 && \
+ (p)->ext_Names != 0)
+
+/*
+ * Disallow changing the type of an extended capability when doing a "use"
+ * if one or the other is a string.
+ */
+static int
+invalid_merge(TERMTYPE2 *to, TERMTYPE2 *from)
+{
+ int rc = FALSE;
+ if (valid_TERMTYPE2(to)
+ && valid_TERMTYPE2(from)) {
+ char *to_name = _nc_first_name(to->term_names);
+ char *from_name = strdup(_nc_first_name(from->term_names));
+ unsigned num_names = NUM_EXT_NAMES(from);
+ unsigned n;
+
+ for (n = 0; n < num_names; ++n) {
+ const char *capname = from->ext_Names[n];
+ int tt = extended_captype(to, find_capname(to, capname));
+ int tf = extended_captype(from, n);
+
+ if (tt <= STRING
+ && tf <= STRING
+ && (tt == STRING) != (tf == STRING)) {
+ if (from_name != 0 && strcmp(to_name, from_name)) {
+ _nc_warning("merge of %s to %s changes type of %s from %s to %s",
+ from_name,
+ to_name,
+ from->ext_Names[n],
+ name_of_captype(tf),
+ name_of_captype(tt));
+ } else {
+ _nc_warning("merge of %s changes type of %s from %s to %s",
+ to_name,
+ from->ext_Names[n],
+ name_of_captype(tf),
+ name_of_captype(tt));
+ }
+ rc = TRUE;
+ }
+ }
+ free(from_name);
+ }
+ return rc;
+}
+#define validate_merge(p, q) \
+ if (invalid_merge(&((p)->tterm), &((q)->tterm))) \
+ return FALSE
+#else
+#define validate_merge(p, q) /* nothing */
+#endif
+
NCURSES_EXPORT(int)
_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;
+ unsigned i, j;
+ int total_unresolved, multiples;
- DEBUG(2, ("RESOLUTION BEGINNING"));
+ DEBUG(2, (T_CALLED("_nc_resolve_uses2")));
/*
* Check for multiple occurrences of the same name.
for_entry_list(qp) {
int matchcount = 0;
- for_entry_list(rp) {
+ for_entry_list2(rp, qp->next) {
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++;
+ && check_collisions(qp->tterm.term_names,
+ rp->tterm.term_names,
+ matchcount + 1)) {
+ if (!matchcount++) {
+ (void) fprintf(stderr, "\t%s\n", rp->tterm.term_names);
+ }
+ (void) fprintf(stderr, "and\t%s\n", qp->tterm.term_names);
+ if (!remove_collision(rp->tterm.term_names,
+ 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)
+ if (multiples > 0) {
+ DEBUG(2, (T_RETURN("false")));
return (FALSE);
+ }
DEBUG(2, ("NO MULTIPLE NAME OCCURRENCES"));
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;
+ if (lookfor == 0)
+ continue;
+
foundit = FALSE;
_nc_set_type(child);
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));
+ DEBUG(2, ("%s: resolving use=%s %p (in core)",
+ child, lookfor, lookfor));
qp->uses[i].link = rp;
foundit = TRUE;
+
+ /* verify that there are no earlier uses */
+ for (j = 0; j < i; ++j) {
+ if (qp->uses[j].link != NULL
+ && !strcmp(qp->uses[j].link->tterm.term_names,
+ rp->tterm.term_names)) {
+ _nc_warning("duplicate use=%s", lookfor);
+ break;
+ }
+ }
}
}
/* if that didn't work, try to merge in a compiled entry */
if (!foundit) {
- TERMTYPE thisterm;
+ TERMTYPE2 thisterm;
char filename[PATH_MAX];
memset(&thisterm, 0, sizeof(thisterm));
- if (_nc_read_entry(lookfor, filename, &thisterm) == 1) {
+ if (_nc_read_entry2(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);
+ TYPE_MALLOC(ENTRY, 1, rp);
rp->tterm = thisterm;
rp->nuses = 0;
rp->next = lastread;
qp->uses[i].link = rp;
foundit = TRUE;
+
+ /* verify that there are no earlier uses */
+ for (j = 0; j < i; ++j) {
+ if (qp->uses[j].link != NULL
+ && !strcmp(qp->uses[j].link->tterm.term_names,
+ rp->tterm.term_names)) {
+ _nc_warning("duplicate use=%s", lookfor);
+ break;
+ }
+ }
}
}
/* no good, mark this one unresolvable and complain */
if (!foundit) {
- unresolved++;
total_unresolved++;
_nc_curr_line = (int) lookline;
if (total_unresolved) {
/* free entries read in off disk */
_nc_free_entries(lastread);
+ DEBUG(2, (T_RETURN("false")));
return (FALSE);
}
*/
if (fullresolve) {
do {
- TERMTYPE merged;
+ ENTRY merged;
keepgoing = FALSE;
for_entry_list(qp) {
if (qp->nuses > 0) {
- DEBUG(2, ("%s: attempting merge",
- _nc_first_name(qp->tterm.term_names)));
+ DEBUG(2, ("%s: attempting merge of %d entries",
+ _nc_first_name(qp->tterm.term_names),
+ qp->nuses));
/*
* 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) {
+ for (i = 0; i < qp->nuses; i++) {
+ if (qp->uses[i].link
+ && 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
* the merged entry the name field and string
* table pointer.
*/
- _nc_copy_termtype(&merged, &(qp->tterm));
+ _nc_copy_termtype2(&(merged.tterm), &(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);
+ for (; qp->nuses; qp->nuses--) {
+ int n = (int) (qp->nuses - 1);
+ validate_merge(&merged, qp->uses[n].link);
+ _nc_merge_entry(&merged, qp->uses[n].link);
+ free(qp->uses[n].name);
+ }
/*
* Now merge in the original entry.
*/
- _nc_merge_entry(&merged, &qp->tterm);
+ validate_merge(&merged, qp);
+ _nc_merge_entry(&merged, qp);
/*
* Replace the original entry with the merged one.
FreeIfNeeded(qp->tterm.Booleans);
FreeIfNeeded(qp->tterm.Numbers);
FreeIfNeeded(qp->tterm.Strings);
+ FreeIfNeeded(qp->tterm.str_table);
#if NCURSES_XNAMES
FreeIfNeeded(qp->tterm.ext_Names);
+ FreeIfNeeded(qp->tterm.ext_str_table);
#endif
- qp->tterm = merged;
+ qp->tterm = merged.tterm;
_nc_wrap_entry(qp, TRUE);
/*
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 = (int) qp->startline;
- _nc_set_type(_nc_first_name(qp->tterm.term_names));
+ if (fullresolve) {
+ _nc_curr_col = -1;
+ for_entry_list(qp) {
+ _nc_curr_line = (int) qp->startline;
+ _nc_set_type(_nc_first_name(qp->tterm.term_names));
+ /*
+ * tic overrides this function pointer to provide more verbose
+ * checking.
+ */
+ if (_nc_check_termtype2 != sanity_check2) {
+ SCREEN *save_SP = SP;
+ SCREEN fake_sp;
+ TERMINAL fake_tm;
+ TERMINAL *save_tm = cur_term;
+
+ /*
+ * Setup so that tic can use ordinary terminfo interface to
+ * obtain capability information.
+ */
+ memset(&fake_sp, 0, sizeof(fake_sp));
+ memset(&fake_tm, 0, sizeof(fake_tm));
+ fake_sp._term = &fake_tm;
+ TerminalType(&fake_tm) = qp->tterm;
+ _nc_set_screen(&fake_sp);
+ set_curterm(&fake_tm);
+
+ _nc_check_termtype2(&qp->tterm, literal);
+
+ /*
+ * Checking calls tparm, which can allocate memory. Fix leaks.
+ */
+#define TPS(name) fake_tm.tparm_state.name
+ FreeAndNull(TPS(out_buff));
+ FreeAndNull(TPS(fmt_buff));
+#undef TPS
+
+ _nc_set_screen(save_SP);
+ set_curterm(save_tm);
+ } else {
fixup_acsc(&qp->tterm, literal);
}
- DEBUG(2, ("SANITY CHECK FINISHED"));
}
+ DEBUG(2, ("SANITY CHECK FINISHED"));
+ }
+ DEBUG(2, (T_RETURN("true")));
return (TRUE);
}
-/* obsolete: 20040705 */
-NCURSES_EXPORT(int)
-_nc_resolve_uses(bool fullresolve)
-{
- return _nc_resolve_uses2(fullresolve, FALSE);
-}
-
/*
* This bit of legerdemain turns all the terminfo variable names into
* references to locations in the arrays Booleans, Numbers, and Strings ---
#define CUR tp->
static void
-fixup_acsc(TERMTYPE *tp, bool literal)
+fixup_acsc(TERMTYPE2 *tp, int literal)
{
if (!literal) {
- if (acs_chars == 0
- && enter_alt_charset_mode != 0
- && exit_alt_charset_mode != 0)
+ if (acs_chars == ABSENT_STRING
+ && PRESENT(enter_alt_charset_mode)
+ && PRESENT(exit_alt_charset_mode))
acs_chars = strdup(VT_ACSC);
}
}
static void
-sanity_check2(TERMTYPE *tp, bool literal)
+sanity_check2(TERMTYPE2 *tp, bool literal)
{
if (!PRESENT(exit_attribute_mode)) {
#ifdef __UNUSED__ /* this casts too wide a net */
#endif /* __UNUSED__ */
PAIRED(enter_standout_mode, exit_standout_mode);
PAIRED(enter_underline_mode, exit_underline_mode);
+#if defined(enter_italics_mode) && defined(exit_italics_mode)
+ PAIRED(enter_italics_mode, exit_italics_mode);
+#endif
}
/* we do this check/fix in postprocess_termcap(), but some packagers
PAIRED(enter_xon_mode, exit_xon_mode);
PAIRED(enter_am_mode, exit_am_mode);
ANDMISSING(label_off, label_on);
-#ifdef remove_clock
+#if defined(display_clock) && defined(remove_clock)
PAIRED(display_clock, remove_clock);
#endif
ANDMISSING(set_color_pair, initialize_pair);
}
-/* obsolete: 20040705 */
-static void
-sanity_check(TERMTYPE *tp)
-{
- sanity_check2(tp, FALSE);
-}
-
#if NO_LEAKS
NCURSES_EXPORT(void)
_nc_leaks_tic(void)
{
+ T((T_CALLED("_nc_leaks_tic()")));
+ _nc_globals.leak_checking = TRUE;
_nc_alloc_entry_leaks();
_nc_captoinfo_leaks();
_nc_comp_scan_leaks();
_nc_codes_leaks();
#endif
_nc_tic_expand(0, FALSE, 0);
+ T((T_RETURN("")));
}
NCURSES_EXPORT(void)
_nc_free_tic(int code)
{
+ T((T_CALLED("_nc_free_tic(%d)"), code));
_nc_leaks_tic();
- _nc_free_tinfo(code);
+ exit_terminfo(code);
}
#endif
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