X-Git-Url: https://ncurses.scripts.mit.edu/?p=ncurses.git;a=blobdiff_plain;f=ncurses%2Ftinfo%2Fcomp_parse.c;h=9a0ce487b167b38c6e8e31e46c5f8420bb117c23;hp=ecb2f5834d834d77b9d44217af736a08c2253eed;hb=c885a3fdd089f784f17dd2e9c03d8eb774072dc9;hpb=c633e5103a29a38532cf1925257b91cea33fd090 diff --git a/ncurses/tinfo/comp_parse.c b/ncurses/tinfo/comp_parse.c index ecb2f583..9a0ce487 100644 --- a/ncurses/tinfo/comp_parse.c +++ b/ncurses/tinfo/comp_parse.c @@ -1,5 +1,5 @@ /**************************************************************************** - * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc. * + * Copyright (c) 1998-2013,2016 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 * @@ -29,20 +29,16 @@ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * + * and: Thomas E. Dickey 1996-on * ****************************************************************************/ /* * comp_parse.c -- parser driver loop and use handling. * - * _nc_read_entry_source(FILE *, literal, bool, bool (*hook)()) - * _nc_resolve_uses(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_uses(). To free the list + * want use-resolution, call _nc_resolve_uses2(). To free the list * storage, do _nc_free_entries(). - * */ #include @@ -50,35 +46,17 @@ #include #include -#include -MODULE_ID("$Id: comp_parse.c,v 1.42 2000/10/14 17:50:45 Bernhard.Rosenkraenzer Exp $") +MODULE_ID("$Id: comp_parse.c,v 1.92 2016/09/10 20:08:32 tom Exp $") -static void sanity_check(TERMTYPE *); -void (*_nc_check_termtype) (TERMTYPE *) = sanity_check; +static void sanity_check2(TERMTYPE *, bool); +NCURSES_IMPEXP void NCURSES_API(*_nc_check_termtype2) (TERMTYPE *, bool) = sanity_check2; -/**************************************************************************** - * - * Entry queue handling - * - ****************************************************************************/ -/* - * The entry list is a doubly linked list with NULLs terminating the lists: - * - * --------- --------- --------- - * | | | | | | offset - * |-------| |-------| |-------| - * | ----+-->| ----+-->| NULL | next - * |-------| |-------| |-------| - * | NULL |<--+---- |<--+---- | last - * --------- --------- --------- - * ^ ^ - * | | - * | | - * _nc_head _nc_tail - */ +/* obsolete: 20040705 */ +static void sanity_check(TERMTYPE *); +NCURSES_IMPEXP void NCURSES_API(*_nc_check_termtype) (TERMTYPE *) = sanity_check; -ENTRY *_nc_head = 0, *_nc_tail = 0; +static void fixup_acsc(TERMTYPE *, int); static void enqueue(ENTRY * ep) @@ -87,7 +65,7 @@ enqueue(ENTRY * ep) ENTRY *newp = _nc_copy_entry(ep); if (newp == 0) - _nc_err_abort("Out of memory"); + _nc_err_abort(MSG_NO_MEMORY); newp->last = _nc_tail; _nc_tail = newp; @@ -97,30 +75,7 @@ enqueue(ENTRY * ep) newp->last->next = newp; } -void -_nc_free_entries(ENTRY * headp) -/* free the allocated storage consumed by list entries */ -{ - ENTRY *ep, *next; - - for (ep = headp; ep; ep = next) { - /* - * This conditional lets us disconnect storage from the list. - * To do this, copy an entry out of the list, then null out - * the string-table member in the original and any use entries - * it references. - */ - FreeIfNeeded(ep->tterm.str_table); - - next = ep->next; - - free(ep); - if (ep == _nc_head) - _nc_head = 0; - if (ep == _nc_tail) - _nc_tail = 0; - } -} +#define NAMEBUFFER_SIZE (MAX_NAME_SIZE + 2) static char * force_bar(char *dst, char *src) @@ -129,42 +84,136 @@ 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) -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], nc2[MAX_NAME_SIZE + 2]; + char nc1[NAMEBUFFER_SIZE]; + char nc2[NAMEBUFFER_SIZE]; + + n1 = ForceBar(nc1, n1); + n2 = ForceBar(nc2, n2); - n1 = force_bar(nc1, n1); - n2 = force_bar(nc2, n2); +#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); + } 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 * ****************************************************************************/ -void -_nc_read_entry_source(FILE * fp, char *buf, - int literal, bool silent, - bool(*hook) (ENTRY *)) +NCURSES_EXPORT(void) +_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; @@ -179,18 +228,29 @@ _nc_read_entry_source(FILE * fp, char *buf, memset(&thisentry, 0, sizeof(thisentry)); if (_nc_parse_entry(&thisentry, literal, silent) == ERR) break; - if (!isalnum(thisentry.tterm.term_names[0])) + 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, so as to avoid chewing up a lot of - * core when the resolution code could fetch entries off disk. + * 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)) + if (hook != NULLHOOK && (*hook) (&thisentry)) { immediate++; - else + } 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) { @@ -209,13 +269,14 @@ _nc_read_entry_source(FILE * fp, char *buf, _nc_suppress_warnings = oldsuppress; } -int -_nc_resolve_uses(bool fullresolve) +NCURSES_EXPORT(int) +_nc_resolve_uses2(bool fullresolve, bool literal) /* try to resolve all use capabilities */ { ENTRY *qp, *rp, *lastread = 0; bool keepgoing; - int i, j, unresolved, total_unresolved, multiples; + unsigned i; + int unresolved, total_unresolved, multiples; DEBUG(2, ("RESOLUTION BEGINNING")); @@ -226,20 +287,21 @@ _nc_resolve_uses(bool fullresolve) for_entry_list(qp) { int matchcount = 0; - for_entry_list(rp) + 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); @@ -264,14 +326,15 @@ _nc_resolve_uses(bool fullresolve) _nc_set_type(child); /* first, try to resolve from in-core records */ - for_entry_list(rp) + 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)); + && _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; + qp->uses[i].link = rp; + foundit = TRUE; + } } /* if that didn't work, try to merge in a compiled entry */ @@ -282,11 +345,9 @@ _nc_resolve_uses(bool fullresolve) memset(&thisterm, 0, sizeof(thisterm)); if (_nc_read_entry(lookfor, filename, &thisterm) == 1) { DEBUG(2, ("%s: resolving use=%s (compiled)", - child, lookfor)); + child, lookfor)); - rp = typeMalloc(ENTRY, 1); - if (rp == 0) - _nc_err_abort("Out of memory"); + TYPE_MALLOC(ENTRY, 1, rp); rp->tterm = thisterm; rp->nuses = 0; rp->next = lastread; @@ -302,7 +363,7 @@ _nc_resolve_uses(bool fullresolve) 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; } @@ -317,8 +378,8 @@ _nc_resolve_uses(bool fullresolve) DEBUG(2, ("NAME RESOLUTION COMPLETED OK")); /* - * OK, at this point all (char *) references in `name' mwmbers - * have been successfully converred to (ENTRY *) pointers in + * 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) { @@ -330,7 +391,7 @@ _nc_resolve_uses(bool fullresolve) for_entry_list(qp) { if (qp->nuses > 0) { DEBUG(2, ("%s: attempting merge", - _nc_first_name(qp->tterm.term_names))); + _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 @@ -339,15 +400,15 @@ _nc_resolve_uses(bool fullresolve) 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)); + _nc_first_name(qp->tterm.term_names), i)); goto incomplete; } /* - * First, make sure there's no garbage in the - * merge block. as a side effect, copy into - * the merged entry the name field and string - * table pointer. + * 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)); @@ -357,7 +418,7 @@ _nc_resolve_uses(bool fullresolve) */ for (; qp->nuses; qp->nuses--) _nc_merge_entry(&merged, - &qp->uses[qp->nuses - 1].link->tterm); + &qp->uses[qp->nuses - 1].link->tterm); /* * Now merge in the original entry. @@ -370,7 +431,11 @@ _nc_resolve_uses(bool fullresolve) 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 @@ -385,23 +450,6 @@ _nc_resolve_uses(bool fullresolve) (keepgoing); DEBUG(2, ("MERGES COMPLETED OK")); - - /* - * The exit condition of the loop above is such that all entries - * must now be resolved. Now handle cancellations. In a resolved - * entry there should be no cancellation markers. - */ - for_entry_list(qp) { - for_each_boolean(j, &(qp->tterm)) - if (qp->tterm.Booleans[j] == CANCELLED_BOOLEAN) - qp->tterm.Booleans[j] = ABSENT_BOOLEAN; - for_each_number(j, &(qp->tterm)) - if (qp->tterm.Numbers[j] == CANCELLED_NUMERIC) - qp->tterm.Numbers[j] = ABSENT_NUMERIC; - for_each_string(j, &(qp->tterm)) - if (qp->tterm.Strings[j] == CANCELLED_STRING) - qp->tterm.Strings[j] = ABSENT_STRING; - } } /* @@ -417,9 +465,36 @@ _nc_resolve_uses(bool fullresolve) if (_nc_check_termtype != 0) { _nc_curr_col = -1; for_entry_list(qp) { - _nc_curr_line = qp->startline; + _nc_curr_line = (int) qp->startline; _nc_set_type(_nc_first_name(qp->tterm.term_names)); - _nc_check_termtype(&qp->tterm); + /* + * 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; + fake_tm.type = 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")); } @@ -427,6 +502,13 @@ _nc_resolve_uses(bool fullresolve) 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 --- @@ -437,31 +519,50 @@ _nc_resolve_uses(bool fullresolve) #define CUR tp-> static void -sanity_check(TERMTYPE * tp) +fixup_acsc(TERMTYPE *tp, int literal) +{ + if (!literal) { + if (acs_chars == 0 + && enter_alt_charset_mode != 0 + && exit_alt_charset_mode != 0) + acs_chars = strdup(VT_ACSC); + } +} + +static void +sanity_check2(TERMTYPE *tp, bool literal) { if (!PRESENT(exit_attribute_mode)) { #ifdef __UNUSED__ /* this casts too wide a net */ bool terminal_entry = !strchr(tp->term_names, '+'); if (terminal_entry && (PRESENT(set_attributes) - || PRESENT(enter_standout_mode) - || PRESENT(enter_underline_mode) - || PRESENT(enter_blink_mode) - || PRESENT(enter_bold_mode) - || PRESENT(enter_dim_mode) - || PRESENT(enter_secure_mode) - || PRESENT(enter_protected_mode) - || PRESENT(enter_reverse_mode))) + || PRESENT(enter_standout_mode) + || PRESENT(enter_underline_mode) + || PRESENT(enter_blink_mode) + || PRESENT(enter_bold_mode) + || PRESENT(enter_dim_mode) + || PRESENT(enter_secure_mode) + || PRESENT(enter_protected_mode) + || PRESENT(enter_reverse_mode))) _nc_warning("no exit_attribute_mode"); #endif /* __UNUSED__ */ - PAIRED(enter_standout_mode, exit_standout_mode) - PAIRED(enter_underline_mode, exit_underline_mode) + PAIRED(enter_standout_mode, exit_standout_mode); + PAIRED(enter_underline_mode, exit_underline_mode); + PAIRED(enter_italics_mode, exit_italics_mode); + } + + /* we do this check/fix in postprocess_termcap(), but some packagers + * prefer to bypass it... + */ + if (!literal) { + fixup_acsc(tp, literal); + ANDMISSING(enter_alt_charset_mode, acs_chars); + ANDMISSING(exit_alt_charset_mode, acs_chars); } /* listed in structure-member order of first argument */ PAIRED(enter_alt_charset_mode, exit_alt_charset_mode); - ANDMISSING(enter_alt_charset_mode, acs_chars); - ANDMISSING(exit_alt_charset_mode, acs_chars); ANDMISSING(enter_blink_mode, exit_attribute_mode); ANDMISSING(enter_bold_mode, exit_attribute_mode); PAIRED(exit_ca_mode, enter_ca_mode); @@ -479,6 +580,37 @@ sanity_check(TERMTYPE * tp) PAIRED(enter_xon_mode, exit_xon_mode); PAIRED(enter_am_mode, exit_am_mode); ANDMISSING(label_off, label_on); +#ifdef 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) +{ + _nc_alloc_entry_leaks(); + _nc_captoinfo_leaks(); + _nc_comp_scan_leaks(); +#if BROKEN_LINKER || USE_REENTRANT + _nc_names_leaks(); + _nc_codes_leaks(); +#endif + _nc_tic_expand(0, FALSE, 0); +} + +NCURSES_EXPORT(void) +_nc_free_tic(int code) +{ + _nc_leaks_tic(); + _nc_free_tinfo(code); +} +#endif