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ncursesw-morphos/ncurses/tinfo/parse_entry.c
Thomas E. Dickey 11ca5f6299 ncurses 5.6 - patch 20080816 
+ add configure option --enable-weak-symbols to turn on new feature.
+ add configure-check for availability of weak symbols.
+ modify linkage with pthread library to use weak symbols so that
  applications not linked to that library will not use the mutexes,
  etc.  This relies on gcc, and may be platform-specific (patch by Dr
  Werner Fink).
+ add note to INSTALL to document limitation of renaming of tic library
  using the --with-ticlib configure option (report by Dr Werner Fink).
+ document (in manpage) why tputs does not detect I/O errors (prompted
  by comments by Samuel Thibault).
+ fix remaining warnings from Klocwork report.
2008-08-17 01:51:55 +00:00

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/****************************************************************************
* Copyright (c) 1998-2007,2008 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 *
* "Software"), to deal in the Software without restriction, including *
* without limitation the rights to use, copy, modify, merge, publish, *
* distribute, distribute with modifications, sublicense, and/or sell *
* copies of the Software, and to permit persons to whom the Software is *
* furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included *
* in all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
* IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
* THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
* *
* Except as contained in this notice, the name(s) of the above copyright *
* holders shall not be used in advertising or otherwise to promote the *
* sale, use or other dealings in this Software without prior written *
* authorization. *
****************************************************************************/
/****************************************************************************
* Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 *
* and: Eric S. Raymond <esr@snark.thyrsus.com> *
* and: Thomas E. Dickey 1996-on *
****************************************************************************/
/*
* parse_entry.c -- compile one terminfo or termcap entry
*
* Get an exact in-core representation of an entry. Don't
* try to resolve use or tc capabilities, that is someone
* else's job. Depends on the lexical analyzer to get tokens
* from the input stream.
*/
#define __INTERNAL_CAPS_VISIBLE
#include <curses.priv.h>
#include <ctype.h>
#include <tic.h>
#include <term_entry.h>
MODULE_ID("$Id: parse_entry.c,v 1.69 2008/08/16 21:52:03 tom Exp $")
#ifdef LINT
static short const parametrized[] =
{0};
#else
#include <parametrized.h>
#endif
static void postprocess_termcap(TERMTYPE *, bool);
static void postprocess_terminfo(TERMTYPE *);
static struct name_table_entry const *lookup_fullname(const char *name);
#if NCURSES_XNAMES
static struct name_table_entry const *
_nc_extend_names(ENTRY * entryp, char *name, int token_type)
{
static struct name_table_entry temp;
TERMTYPE *tp = &(entryp->tterm);
unsigned offset = 0;
unsigned actual;
unsigned tindex;
unsigned first, last, n;
bool found;
switch (token_type) {
case BOOLEAN:
first = 0;
last = tp->ext_Booleans;
offset = tp->ext_Booleans;
tindex = tp->num_Booleans;
break;
case NUMBER:
first = tp->ext_Booleans;
last = tp->ext_Numbers + first;
offset = tp->ext_Booleans + tp->ext_Numbers;
tindex = tp->num_Numbers;
break;
case STRING:
first = tp->ext_Booleans + tp->ext_Numbers;
last = tp->ext_Strings + first;
offset = tp->ext_Booleans + tp->ext_Numbers + tp->ext_Strings;
tindex = tp->num_Strings;
break;
case CANCEL:
actual = NUM_EXT_NAMES(tp);
for (n = 0; n < actual; n++) {
if (!strcmp(name, tp->ext_Names[n])) {
if (n > (unsigned) (tp->ext_Booleans + tp->ext_Numbers)) {
token_type = STRING;
} else if (n > tp->ext_Booleans) {
token_type = NUMBER;
} else {
token_type = BOOLEAN;
}
return _nc_extend_names(entryp, name, token_type);
}
}
/* Well, we are given a cancel for a name that we don't recognize */
return _nc_extend_names(entryp, name, STRING);
default:
return 0;
}
/* Adjust the 'offset' (insertion-point) to keep the lists of extended
* names sorted.
*/
for (n = first, found = FALSE; n < last; n++) {
int cmp = strcmp(tp->ext_Names[n], name);
if (cmp == 0)
found = TRUE;
if (cmp >= 0) {
offset = n;
tindex = n - first;
switch (token_type) {
case BOOLEAN:
tindex += BOOLCOUNT;
break;
case NUMBER:
tindex += NUMCOUNT;
break;
case STRING:
tindex += STRCOUNT;
break;
}
break;
}
}
if (!found) {
switch (token_type) {
case BOOLEAN:
tp->ext_Booleans += 1;
tp->num_Booleans += 1;
tp->Booleans = typeRealloc(NCURSES_SBOOL, tp->num_Booleans, tp->Booleans);
for (last = tp->num_Booleans - 1; last > tindex; last--)
tp->Booleans[last] = tp->Booleans[last - 1];
break;
case NUMBER:
tp->ext_Numbers += 1;
tp->num_Numbers += 1;
tp->Numbers = typeRealloc(short, tp->num_Numbers, tp->Numbers);
for (last = tp->num_Numbers - 1; last > tindex; last--)
tp->Numbers[last] = tp->Numbers[last - 1];
break;
case STRING:
tp->ext_Strings += 1;
tp->num_Strings += 1;
tp->Strings = typeRealloc(char *, tp->num_Strings, tp->Strings);
for (last = tp->num_Strings - 1; last > tindex; last--)
tp->Strings[last] = tp->Strings[last - 1];
break;
}
actual = NUM_EXT_NAMES(tp);
tp->ext_Names = typeRealloc(char *, actual, tp->ext_Names);
while (--actual > offset)
tp->ext_Names[actual] = tp->ext_Names[actual - 1];
tp->ext_Names[offset] = _nc_save_str(name);
}
temp.nte_name = tp->ext_Names[offset];
temp.nte_type = token_type;
temp.nte_index = tindex;
temp.nte_link = -1;
return &temp;
}
#endif /* NCURSES_XNAMES */
/*
* int
* _nc_parse_entry(entry, literal, silent)
*
* Compile one entry. Doesn't try to resolve use or tc capabilities.
*
* found-forward-use = FALSE
* re-initialise internal arrays
* get_token();
* if the token was not a name in column 1, complain and die
* save names in entry's string table
* while (get_token() is not EOF and not NAMES)
* check for existence and type-correctness
* enter cap into structure
* if STRING
* save string in entry's string table
* push back token
*/
#define BAD_TC_USAGE if (!bad_tc_usage) \
{ bad_tc_usage = TRUE; \
_nc_warning("Legacy termcap allows only a trailing tc= clause"); }
NCURSES_EXPORT(int)
_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);
if (entryp->tterm.str_table == 0)
return (ERR);
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 {
/* normal token lookup */
entry_ptr = _nc_find_entry(_nc_curr_token.tk_name,
_nc_get_hash_table(_nc_syntax));
/*
* 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) {
if (entryp->nuses != 0) {
BAD_TC_USAGE
}
for (ap = _nc_get_alias_table(TRUE); 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_get_hash_table(TRUE));
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_get_alias_table(FALSE); 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_get_hash_table(FALSE));
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.
*/
if (token_type == NUMBER
&& !strcmp("ma", _nc_curr_token.tk_name)) {
/* tell max_attributes from arrow_key_map */
entry_ptr = _nc_find_type_entry("ma", NUMBER,
_nc_get_table(_nc_syntax
!= 0));
assert(entry_ptr != 0);
} else if (token_type == STRING
&& !strcmp("MT", _nc_curr_token.tk_name)) {
/* map terminfo's string MT to MT */
entry_ptr = _nc_find_type_entry("MT", STRING,
_nc_get_table(_nc_syntax
!= 0));
assert(entry_ptr != 0);
} else if (token_type == BOOLEAN
&& entry_ptr->nte_type == STRING) {
/* treat strings without following "=" as empty strings */
token_type = STRING;
} else {
/* we couldn't recover; skip this token */
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((char) ((_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;
unsigned 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, FALSE);
return (OK);
}
NCURSES_EXPORT(int)
_nc_capcmp(const char *s, const char *t)
/* compare two string capabilities, stripping out padding */
{
if (!s && !t)
return (0);
else if (!s || !t)
return (1);
for (;;) {
if (s[0] == '$' && s[1] == '<') {
for (s += 2;; s++)
if (!(isdigit(UChar(*s))
|| *s == '.'
|| *s == '*'
|| *s == '/'
|| *s == '>'))
break;
}
if (t[0] == '$' && t[1] == '<') {
for (t += 2;; t++)
if (!(isdigit(UChar(*t))
|| *t == '.'
|| *t == '*'
|| *t == '/'
|| *t == '>'))
break;
}
/* we've now pushed s and t past any padding they were pointing at */
if (*s == '\0' && *t == '\0')
return (0);
if (*s != *t)
return (*t - *s);
/* else *s == *t but one is not NUL, so continue */
s++, t++;
}
}
static void
append_acs0(string_desc * dst, int code, int src)
{
if (src != 0) {
char temp[3];
temp[0] = (char) code;
temp[1] = (char) src;
temp[2] = 0;
_nc_safe_strcat(dst, temp);
}
}
static void
append_acs(string_desc * dst, int code, char *src)
{
if (src != 0 && strlen(src) == 1) {
append_acs0(dst, code, *src);
}
}
/*
* The ko capability, if present, consists of a comma-separated capability
* list. For each capability, we may assume there is a keycap that sends the
* string which is the value of that capability.
*/
typedef struct {
const char *from;
const char *to;
} assoc;
static assoc const ko_xlate[] =
{
{"al", "kil1"}, /* insert line key -> KEY_IL */
{"bt", "kcbt"}, /* back tab -> KEY_BTAB */
{"cd", "ked"}, /* clear-to-eos key -> KEY_EOL */
{"ce", "kel"}, /* clear-to-eol key -> KEY_EOS */
{"cl", "kclr"}, /* clear key -> KEY_CLEAR */
{"ct", "tbc"}, /* clear all tabs -> KEY_CATAB */
{"dc", "kdch1"}, /* delete char -> KEY_DC */
{"dl", "kdl1"}, /* delete line -> KEY_DL */
{"do", "kcud1"}, /* down key -> KEY_DOWN */
{"ei", "krmir"}, /* exit insert key -> KEY_EIC */
{"ho", "khome"}, /* home key -> KEY_HOME */
{"ic", "kich1"}, /* insert char key -> KEY_IC */
{"im", "kIC"}, /* insert-mode key -> KEY_SIC */
{"le", "kcub1"}, /* le key -> KEY_LEFT */
{"nd", "kcuf1"}, /* nd key -> KEY_RIGHT */
{"nl", "kent"}, /* new line key -> KEY_ENTER */
{"st", "khts"}, /* set-tab key -> KEY_STAB */
{"ta", CANCELLED_STRING},
{"up", "kcuu1"}, /* up-arrow key -> KEY_UP */
{(char *) 0, (char *) 0},
};
/*
* This routine fills in string caps that either had defaults under
* termcap or can be manufactured from obsolete termcap capabilities.
* It was lifted from Ross Ridge's mytinfo package.
*/
static const char C_CR[] = "\r";
static const char C_LF[] = "\n";
static const char C_BS[] = "\b";
static const char C_HT[] = "\t";
/*
* Note that WANTED and PRESENT are not simple inverses! If a capability
* has been explicitly cancelled, it's not considered WANTED.
*/
#define WANTED(s) ((s) == ABSENT_STRING)
#define PRESENT(s) (((s) != ABSENT_STRING) && ((s) != CANCELLED_STRING))
/*
* This bit of legerdemain turns all the terminfo variable names into
* references to locations in the arrays Booleans, Numbers, and Strings ---
* precisely what's needed.
*/
#undef CUR
#define CUR tp->
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->from && 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_get_hash_table(TRUE));
to_ptr = _nc_find_entry(ap->to, _nc_get_hash_table(FALSE));
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 (!has_base) {
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(VT_ACSC);
}
}
static void
postprocess_terminfo(TERMTYPE *tp)
{
/*
* TERMINFO-TO-TERMINFO MAPPINGS FOR SOURCE TRANSLATION
* ----------------------------------------------------------------------
*/
/*
* Translate AIX forms characters.
*/
if (PRESENT(box_chars_1)) {
char buf2[MAX_TERMCAP_LENGTH];
string_desc result;
_nc_str_init(&result, buf2, sizeof(buf2));
_nc_safe_strcat(&result, acs_chars);
append_acs0(&result, 'l', box_chars_1[0]); /* ACS_ULCORNER */
append_acs0(&result, 'q', box_chars_1[1]); /* ACS_HLINE */
append_acs0(&result, 'k', box_chars_1[2]); /* ACS_URCORNER */
append_acs0(&result, 'x', box_chars_1[3]); /* ACS_VLINE */
append_acs0(&result, 'j', box_chars_1[4]); /* ACS_LRCORNER */
append_acs0(&result, 'm', box_chars_1[5]); /* ACS_LLCORNER */
append_acs0(&result, 'w', box_chars_1[6]); /* ACS_TTEE */
append_acs0(&result, 'u', box_chars_1[7]); /* ACS_RTEE */
append_acs0(&result, 'v', box_chars_1[8]); /* ACS_BTEE */
append_acs0(&result, 't', box_chars_1[9]); /* ACS_LTEE */
append_acs0(&result, 'n', box_chars_1[10]); /* ACS_PLUS */
if (buf2[0]) {
acs_chars = _nc_save_str(buf2);
_nc_warning("acsc string synthesized from AIX capabilities");
box_chars_1 = ABSENT_STRING;
}
}
/*
* ----------------------------------------------------------------------
*/
}
/*
* Do a linear search through the terminfo tables to find a given full-name.
* We don't expect to do this often, so there's no hashing function.
*
* In effect, this scans through the 3 lists of full-names, and looks them
* up in _nc_info_table, which is organized so that the nte_index fields are
* sorted, but the nte_type fields are not necessarily grouped together.
*/
static struct name_table_entry const *
lookup_fullname(const char *find)
{
int state = -1;
for (;;) {
int count = 0;
NCURSES_CONST char *const *names;
switch (++state) {
case BOOLEAN:
names = boolfnames;
break;
case STRING:
names = strfnames;
break;
case NUMBER:
names = numfnames;
break;
default:
return NOTFOUND;
}
for (count = 0; names[count] != 0; count++) {
if (!strcmp(names[count], find)) {
struct name_table_entry const *entry_ptr = _nc_get_table(FALSE);
while (entry_ptr->nte_type != state
|| entry_ptr->nte_index != count)
entry_ptr++;
return entry_ptr;
}
}
}
}
/* parse_entry.c ends here */
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