]> ncurses.scripts.mit.edu Git - ncurses.git/blobdiff - ncurses/tinfo/comp_parse.c
ncurses 6.0 - patch 20180106
[ncurses.git] / ncurses / tinfo / comp_parse.c
index eda581b9fc70d272538173cee0659bd2046b54c3..7284b02d51bf79bd9038d06cf5ac05a566b62505 100644 (file)
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2009,2010 Free Software Foundation, Inc.              *
+ * Copyright (c) 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            *
 /*
  *     comp_parse.c -- parser driver loop and use handling.
  *
- *     _nc_read_entry_source(FILE *, literal, bool, bool (*hook)())
- *     _nc_resolve_uses2(void)
- *     _nc_free_entries(void)
- *
  *     Use this code by calling _nc_read_entry_source() on as many source
  *     files as you like (either terminfo or termcap syntax).  If you
  *     want use-resolution, call _nc_resolve_uses2().  To free the list
  *     storage, do _nc_free_entries().
- *
  */
 
 #include <curses.priv.h>
 
 #include <tic.h>
 
-MODULE_ID("$Id: comp_parse.c,v 1.72 2010/01/23 17:57:43 tom Exp $")
+MODULE_ID("$Id: comp_parse.c,v 1.100 2017/09/20 00:37:08 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(TERMTYPE2 *, int);
 
 static void
 enqueue(ENTRY * ep)
@@ -78,6 +71,8 @@ enqueue(ENTRY * ep)
        newp->last->next = newp;
 }
 
+#define NAMEBUFFER_SIZE (MAX_NAME_SIZE + 2)
+
 static char *
 force_bar(char *dst, char *src)
 {
@@ -85,34 +80,126 @@ 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, len);
+       _nc_STRCPY(dst + len, "|", NAMEBUFFER_SIZE - len);
        src = dst;
     }
     return src;
 }
 #define ForceBar(dst, src) ((strchr(src, '|') == 0) ? force_bar(dst, src) : src)
 
-NCURSES_EXPORT(bool)
-_nc_entry_match(char *n1, char *n2)
-/* do any of the aliases in a pair of terminal names match? */
+#if NCURSES_USE_TERMCAP && NCURSES_XNAMES
+static char *
+skip_index(char *name)
+{
+    char *bar = strchr(name, '|');
+
+    if (bar != 0 && (bar - name) == 2)
+       name = bar + 1;
+
+    return name;
+}
+#endif
+
+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);
 
-    for (pstart = n1; (pend = strchr(pstart, '|')); pstart = pend + 1)
-       for (qstart = n2; (qend = strchr(qstart, '|')); qstart = qend + 1)
+#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) {
            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);
+               } else {
+                   fprintf(stderr, "Cannot remove alias '%.*s'\n",
+                           (int) (qend - qstart), qstart);
+               }
+               removed = TRUE;
+               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
@@ -198,19 +285,19 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 
        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++;
+               && 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)
        return (FALSE);
@@ -248,17 +335,15 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 
            /* 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;
@@ -274,7 +359,7 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
                unresolved++;
                total_unresolved++;
 
-               _nc_curr_line = lookline;
+               _nc_curr_line = (int) lookline;
                _nc_warning("resolution of use=%s failed", lookfor);
                qp->uses[i].link = 0;
            }
@@ -295,7 +380,7 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
      */
     if (fullresolve) {
        do {
-           TERMTYPE merged;
+           ENTRY merged;
 
            keepgoing = FALSE;
 
@@ -321,7 +406,7 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
                     * 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
@@ -329,12 +414,12 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
                     */
                    for (; qp->nuses; qp->nuses--)
                        _nc_merge_entry(&merged,
-                                       &qp->uses[qp->nuses - 1].link->tterm);
+                                       qp->uses[qp->nuses - 1].link);
 
                    /*
                     * Now merge in the original entry.
                     */
-                   _nc_merge_entry(&merged, &qp->tterm);
+                   _nc_merge_entry(&merged, qp);
 
                    /*
                     * Replace the original entry with the merged one.
@@ -345,7 +430,7 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 #if NCURSES_XNAMES
                    FreeIfNeeded(qp->tterm.ext_Names);
 #endif
-                   qp->tterm = merged;
+                   qp->tterm = merged.tterm;
                    _nc_wrap_entry(qp, TRUE);
 
                    /*
@@ -372,27 +457,46 @@ _nc_resolve_uses2(bool fullresolve, bool literal)
 
     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));
+    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);
+
+               _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"));
+    }
 
     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 ---
@@ -403,7 +507,18 @@ _nc_resolve_uses(bool fullresolve)
 #define CUR tp->
 
 static void
-sanity_check2(TERMTYPE *tp, bool literal)
+fixup_acsc(TERMTYPE2 *tp, int literal)
+{
+    if (!literal) {
+       if (acs_chars == ABSENT_STRING
+           && PRESENT(enter_alt_charset_mode)
+           && PRESENT(exit_alt_charset_mode))
+           acs_chars = strdup(VT_ACSC);
+    }
+}
+
+static void
+sanity_check2(TERMTYPE2 *tp, bool literal)
 {
     if (!PRESENT(exit_attribute_mode)) {
 #ifdef __UNUSED__              /* this casts too wide a net */
@@ -422,16 +537,16 @@ sanity_check2(TERMTYPE *tp, bool literal)
 #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
      * prefer to bypass it...
      */
     if (!literal) {
-       if (acs_chars == 0
-           && enter_alt_charset_mode != 0
-           && exit_alt_charset_mode != 0)
-           acs_chars = strdup(VT_ACSC);
+       fixup_acsc(tp, literal);
        ANDMISSING(enter_alt_charset_mode, acs_chars);
        ANDMISSING(exit_alt_charset_mode, acs_chars);
     }
@@ -455,23 +570,18 @@ sanity_check2(TERMTYPE *tp, bool literal)
     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_free_tic()")));
+    _nc_globals.leak_checking = TRUE;
     _nc_alloc_entry_leaks();
     _nc_captoinfo_leaks();
     _nc_comp_scan_leaks();