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ncursesw-morphos/ncurses/tinfo/parse_entry.c
Thomas E. Dickey 8e25fff6a5 ncurses 5.9 - patch 20110730 
+ modify configure script and makefiles in c++ and progs to allow the
  directory used for rpath option to be overridden, e.g., to work
  around updates to the variables used by tic during an install.
+ add -K option to tic/infocmp, to provide stricter BSD-compatibility
  for termcap output.
+ add _nc_strict_bsd variable in tic library which controls the
  "strict" BSD termcap compatibility from 20110723, plus these
  features:
  + allow escapes such as "\8" and "\9" when reading termcap
  + disallow "\a", "\e", "\l", "\s" and "\:" escapes when reading
    termcap files, passing through "a", "e", etc.
  + expand "\:" as "\072" on output.
+ modify _nc_get_token() to reset the token's string value in case
  there is a string-typed token lacking the "=" marker.
+ fix a few memory leaks in _nc_tgetent.
+ fix a few places where reading from a termcap file could refer to
  freed memory.
+ add an overflow check when converting terminfo/termcap numeric
  values, since terminfo stores those in a short, and they must be
  positive.
+ correct internal variables used for translating to termcap "%>"
  feature, and translating from termcap %B to terminfo, needed by
  tctest (cf: 19991211).
+ amend a minor fix to acsc when loading a termcap file to separate it
  from warnings needed for tic (cf: 20040710)
+ modify logic in _nc_read_entry() and _nc_read_tic_entry() to allow
  a termcap file to be handled via TERMINFO_DIRS.
+ modify _nc_infotocap() to include non-mandatory padding when
  translating to termcap.
+ modify _nc_read_termcap_entry(), passing a flag in the case where
  getcap is used, to reduce interactive warning messages.
2011-07-31 01:15:59 +00:00

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/****************************************************************************
* Copyright (c) 1998-2010,2011 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>
MODULE_ID("$Id: parse_entry.c,v 1.76 2011/07/27 01:14:47 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 = (unsigned) (tp->ext_Booleans + tp->ext_Numbers);
tindex = tp->num_Numbers;
break;
case STRING:
first = (unsigned) (tp->ext_Booleans + tp->ext_Numbers);
last = tp->ext_Strings + first;
offset = (unsigned) (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;
}
}
#define for_each_value(max) \
for (last = (unsigned) (max - 1); last > tindex; last--)
if (!found) {
switch (token_type) {
case BOOLEAN:
tp->ext_Booleans++;
tp->num_Booleans++;
tp->Booleans = typeRealloc(NCURSES_SBOOL, tp->num_Booleans, tp->Booleans);
for_each_value(tp->num_Booleans)
tp->Booleans[last] = tp->Booleans[last - 1];
break;
case NUMBER:
tp->ext_Numbers++;
tp->num_Numbers++;
tp->Numbers = typeRealloc(short, tp->num_Numbers, tp->Numbers);
for_each_value(tp->num_Numbers)
tp->Numbers[last] = tp->Numbers[last - 1];
break;
case STRING:
tp->ext_Strings++;
tp->num_Strings++;
tp->Strings = typeRealloc(char *, tp->num_Strings, tp->Strings);
for_each_value(tp->num_Strings)
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 = (short) 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"); }
#define MAX_NUMBER 0x7fff /* positive shorts only */
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_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_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:
if (_nc_curr_token.tk_valnumber > MAX_NUMBER) {
entryp->tterm.Numbers[entry_ptr->nte_index] = MAX_NUMBER;
} else {
entryp->tterm.Numbers[entry_ptr->nte_index] =
(short) _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 (!VALID_STRING(s) && !VALID_STRING(t))
return (0);
else if (!VALID_STRING(s) || !VALID_STRING(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$<%d>", C_BS, backspace_delay);
cursor_left = _nc_save_str(buf);
} else if (backspaces_with_bs == 1)
cursor_left = _nc_save_str(C_BS);
else if (PRESENT(backspace_if_not_bs))
cursor_left = backspace_if_not_bs;
}
/* vi doesn't use "do", but it does seem to use nl (or '\n') instead */
if (WANTED(cursor_down)) {
if (PRESENT(linefeed_if_not_lf))
cursor_down = linefeed_if_not_lf;
else if (linefeed_is_newline != 1) {
if (new_line_delay > 0) {
sprintf(buf, "%s$<%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;
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 = (unsigned) (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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