File: [local] / src / usr.bin / tic / dump_entry.c (download)
Revision 1.21, Tue Oct 17 09:52:10 2023 UTC (7 months ago) by nicm
Branch: MAIN
CVS Tags: OPENBSD_7_5_BASE, OPENBSD_7_5, HEAD
Changes since 1.20: +708 -155 lines
Update ncurses and associated libraries (form, panel, menu) to
6.4-20230826 (from 5.7-20081102).
Based on result from Thomas Dickey's ncu2openbsd script and then
modified. Switches to the upstream tput. Major bump for the ncurses
libraries and for libedit and libreadline.
Help from tb, millert.
ok deraadt sthen
|
/* $OpenBSD: dump_entry.c,v 1.21 2023/10/17 09:52:10 nicm Exp $ */
/****************************************************************************
* Copyright 2018-2022,2023 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 *
* "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 *
****************************************************************************/
#define __INTERNAL_CAPS_VISIBLE
#include <progs.priv.h>
#include <dump_entry.h>
#include <termsort.h> /* this C file is generated */
#include <parametrized.h> /* so is this */
MODULE_ID("$Id: dump_entry.c,v 1.21 2023/10/17 09:52:10 nicm Exp $")
#define DISCARD(string) string = ABSENT_STRING
#define PRINTF (void) printf
#define WRAPPED 32
#define OkIndex(index,array) ((int)(index) >= 0 && (int)(index) < (int) SIZEOF(array))
#define TcOutput() (outform == F_TERMCAP || outform == F_TCONVERR)
typedef struct {
char *text;
size_t used;
size_t size;
} DYNBUF;
static int tversion; /* terminfo version */
static int outform; /* output format to use */
static int sortmode; /* sort mode to use */
static int width = 60; /* max line width for listings */
static int height = 65535; /* max number of lines for listings */
static int column; /* current column, limited by 'width' */
static int oldcol; /* last value of column before wrap */
static bool pretty; /* true if we format if-then-else strings */
static bool wrapped; /* true if we wrap too-long strings */
static bool did_wrap; /* true if last wrap_concat did wrapping */
static bool checking; /* true if we are checking for tic */
static int quickdump; /* true if we are dumping compiled data */
static char *save_sgr;
static DYNBUF outbuf;
static DYNBUF tmpbuf;
/* indirection pointers for implementing sort and display modes */
static const PredIdx *bool_indirect, *num_indirect, *str_indirect;
static NCURSES_CONST char *const *bool_names;
static NCURSES_CONST char *const *num_names;
static NCURSES_CONST char *const *str_names;
static const char *separator = "", *trailer = "";
static int indent = 8;
/* cover various ports and variants of terminfo */
#define V_ALLCAPS 0 /* all capabilities (SVr4, XSI, ncurses) */
#define V_SVR1 1 /* SVR1, Ultrix */
#define V_HPUX 2 /* HP-UX */
#define V_AIX 3 /* AIX */
#define V_BSD 4 /* BSD */
#if NCURSES_XNAMES
#define OBSOLETE(n) (!_nc_user_definable && (n[0] == 'O' && n[1] == 'T'))
#else
#define OBSOLETE(n) (n[0] == 'O' && n[1] == 'T')
#endif
#define isObsolete(f,n) ((f == F_TERMINFO || f == F_VARIABLE) && (sortmode != S_VARIABLE) && OBSOLETE(n))
#if NCURSES_XNAMES
#define BoolIndirect(j) ((j >= BOOLCOUNT) ? (j) : ((sortmode == S_NOSORT) ? j : bool_indirect[j]))
#define NumIndirect(j) ((j >= NUMCOUNT) ? (j) : ((sortmode == S_NOSORT) ? j : num_indirect[j]))
#define StrIndirect(j) ((j >= STRCOUNT) ? (j) : ((sortmode == S_NOSORT) ? j : str_indirect[j]))
#else
#define BoolIndirect(j) ((sortmode == S_NOSORT) ? (j) : bool_indirect[j])
#define NumIndirect(j) ((sortmode == S_NOSORT) ? (j) : num_indirect[j])
#define StrIndirect(j) ((sortmode == S_NOSORT) ? (j) : str_indirect[j])
#endif
static GCC_NORETURN void
failed(const char *s)
{
perror(s);
ExitProgram(EXIT_FAILURE);
}
static void
strncpy_DYN(DYNBUF * dst, const char *src, size_t need)
{
size_t want = need + dst->used + 1;
if (want > dst->size) {
dst->size += (want + 1024); /* be generous */
dst->text = typeRealloc(char, dst->size, dst->text);
if (dst->text == 0)
failed("strncpy_DYN");
}
_nc_STRNCPY(dst->text + dst->used, src, need + 1);
dst->used += need;
dst->text[dst->used] = 0;
}
static void
strcpy_DYN(DYNBUF * dst, const char *src)
{
if (src == 0) {
dst->used = 0;
strcpy_DYN(dst, "");
} else {
strncpy_DYN(dst, src, strlen(src));
}
}
#if NO_LEAKS
static void
free_DYN(DYNBUF * p)
{
if (p->text != 0)
free(p->text);
p->text = 0;
p->size = 0;
p->used = 0;
}
void
_nc_leaks_dump_entry(void)
{
free_DYN(&outbuf);
free_DYN(&tmpbuf);
}
#endif
#define NameTrans(check,result) \
if ((np->nte_index <= OK_ ## check) \
&& check[np->nte_index]) \
return (result[np->nte_index])
NCURSES_CONST char *
nametrans(const char *name)
/* translate a capability name to termcap from terminfo */
{
const struct name_table_entry *np;
if ((np = _nc_find_entry(name, _nc_get_hash_table(0))) != 0) {
switch (np->nte_type) {
case BOOLEAN:
NameTrans(bool_from_termcap, boolcodes);
break;
case NUMBER:
NameTrans(num_from_termcap, numcodes);
break;
case STRING:
NameTrans(str_from_termcap, strcodes);
break;
}
}
return (0);
}
void
dump_init(const char *version,
int mode,
int sort,
bool wrap_strings,
int twidth,
int theight,
unsigned traceval,
bool formatted,
bool check,
int quick)
/* set up for entry display */
{
width = twidth;
height = theight;
pretty = formatted;
wrapped = wrap_strings;
checking = check;
quickdump = (quick & 3);
did_wrap = (width <= 0);
/* versions */
if (version == 0)
tversion = V_ALLCAPS;
else if (!strcmp(version, "SVr1") || !strcmp(version, "SVR1")
|| !strcmp(version, "Ultrix"))
tversion = V_SVR1;
else if (!strcmp(version, "HP"))
tversion = V_HPUX;
else if (!strcmp(version, "AIX"))
tversion = V_AIX;
else if (!strcmp(version, "BSD"))
tversion = V_BSD;
else
tversion = V_ALLCAPS;
/* implement display modes */
switch (outform = mode) {
case F_LITERAL:
case F_TERMINFO:
bool_names = boolnames;
num_names = numnames;
str_names = strnames;
separator = (twidth > 0 && theight > 1) ? ", " : ",";
trailer = "\n\t";
break;
case F_VARIABLE:
bool_names = boolfnames;
num_names = numfnames;
str_names = strfnames;
separator = (twidth > 0 && theight > 1) ? ", " : ",";
trailer = "\n\t";
break;
case F_TERMCAP:
case F_TCONVERR:
bool_names = boolcodes;
num_names = numcodes;
str_names = strcodes;
separator = ":";
trailer = "\\\n\t:";
break;
}
indent = 8;
/* implement sort modes */
switch (sortmode = sort) {
case S_NOSORT:
if (traceval)
(void) fprintf(stderr,
"%s: sorting by term structure order\n", _nc_progname);
break;
case S_TERMINFO:
if (traceval)
(void) fprintf(stderr,
"%s: sorting by terminfo name order\n", _nc_progname);
bool_indirect = bool_terminfo_sort;
num_indirect = num_terminfo_sort;
str_indirect = str_terminfo_sort;
break;
case S_VARIABLE:
if (traceval)
(void) fprintf(stderr,
"%s: sorting by C variable order\n", _nc_progname);
bool_indirect = bool_variable_sort;
num_indirect = num_variable_sort;
str_indirect = str_variable_sort;
break;
case S_TERMCAP:
if (traceval)
(void) fprintf(stderr,
"%s: sorting by termcap name order\n", _nc_progname);
bool_indirect = bool_termcap_sort;
num_indirect = num_termcap_sort;
str_indirect = str_termcap_sort;
break;
}
if (traceval)
(void) fprintf(stderr,
"%s: width = %d, tversion = %d, outform = %d\n",
_nc_progname, width, tversion, outform);
}
static TERMTYPE2 *cur_type;
static int
dump_predicate(PredType type, PredIdx idx)
/* predicate function to use for ordinary decompilation */
{
switch (type) {
case BOOLEAN:
return (cur_type->Booleans[idx] == FALSE)
? FAIL : cur_type->Booleans[idx];
case NUMBER:
return (cur_type->Numbers[idx] == ABSENT_NUMERIC)
? FAIL : cur_type->Numbers[idx];
case STRING:
return (cur_type->Strings[idx] != ABSENT_STRING)
? (int) TRUE : FAIL;
}
return (FALSE); /* pacify compiler */
}
static void set_obsolete_termcaps(TERMTYPE2 *tp);
/* is this the index of a function key string? */
#define FNKEY(i) \
(((i) >= STR_IDX(key_f0) && \
(i) <= STR_IDX(key_f9)) || \
((i) >= STR_IDX(key_f11) && \
(i) <= STR_IDX(key_f63)))
/*
* If we configure with a different Caps file, the offsets into the arrays
* will change. So we use an address expression.
*/
#define BOOL_IDX(name) (PredType) (&(name) - &(CUR Booleans[0]))
#define NUM_IDX(name) (PredType) (&(name) - &(CUR Numbers[0]))
#define STR_IDX(name) (PredType) (&(name) - &(CUR Strings[0]))
static bool
version_filter(PredType type, PredIdx idx)
/* filter out capabilities we may want to suppress */
{
switch (tversion) {
case V_ALLCAPS: /* SVr4, XSI Curses */
return (TRUE);
case V_SVR1: /* System V Release 1, Ultrix */
switch (type) {
case BOOLEAN:
return ((idx <= BOOL_IDX(xon_xoff)) ? TRUE : FALSE);
case NUMBER:
return ((idx <= NUM_IDX(width_status_line)) ? TRUE : FALSE);
case STRING:
return ((idx <= STR_IDX(prtr_non)) ? TRUE : FALSE);
}
break;
case V_HPUX: /* Hewlett-Packard */
switch (type) {
case BOOLEAN:
return ((idx <= BOOL_IDX(xon_xoff)) ? TRUE : FALSE);
case NUMBER:
return ((idx <= NUM_IDX(label_width)) ? TRUE : FALSE);
case STRING:
if (idx <= STR_IDX(prtr_non))
return (TRUE);
else if (FNKEY(idx)) /* function keys */
return (TRUE);
else if (idx == STR_IDX(plab_norm)
|| idx == STR_IDX(label_on)
|| idx == STR_IDX(label_off))
return (TRUE);
else
return (FALSE);
}
break;
case V_AIX: /* AIX */
switch (type) {
case BOOLEAN:
return ((idx <= BOOL_IDX(xon_xoff)) ? TRUE : FALSE);
case NUMBER:
return ((idx <= NUM_IDX(width_status_line)) ? TRUE : FALSE);
case STRING:
if (idx <= STR_IDX(prtr_non))
return (TRUE);
else if (FNKEY(idx)) /* function keys */
return (TRUE);
else
return (FALSE);
}
break;
#define is_termcap(type) (OkIndex(idx, type##_from_termcap) && \
type##_from_termcap[idx])
case V_BSD: /* BSD */
switch (type) {
case BOOLEAN:
return is_termcap(bool);
case NUMBER:
return is_termcap(num);
case STRING:
return is_termcap(str);
}
break;
}
return (FALSE); /* pacify the compiler */
}
static void
trim_trailing(void)
{
while (outbuf.used > 0 && outbuf.text[outbuf.used - 1] == ' ')
outbuf.text[--outbuf.used] = '\0';
}
static void
force_wrap(void)
{
oldcol = column;
trim_trailing();
strcpy_DYN(&outbuf, trailer);
column = indent;
}
static int
op_length(const char *src, int offset)
{
int result = 0;
if (offset > 0 && src[offset - 1] == '\\') {
result = 0;
} else {
int ch;
result++; /* for '%' mark */
ch = src[offset + result];
if (TcOutput()) {
if (ch == '>') {
result += 3;
} else if (ch == '+') {
result += 2;
} else {
result++;
}
} else if (ch == '\'') {
result += 3;
} else if (ch == L_CURL[0]) {
int n = result;
while ((ch = src[offset + n]) != '\0') {
if (ch == R_CURL[0]) {
result = ++n;
break;
}
n++;
}
} else if (strchr("pPg", ch) != 0) {
result += 2;
} else {
result++; /* ordinary operator */
}
}
return result;
}
/*
* When wrapping too-long strings, avoid splitting a backslash sequence, or
* a terminfo '%' operator. That will leave things a little ragged, but avoids
* a stray backslash at the end of the line, as well as making the result a
* little more readable.
*/
static int
find_split(const char *src, int step, int size)
{
int result = size;
if (size > 0) {
/* check if that would split a backslash-sequence */
int mark = size;
int n;
for (n = size - 1; n > 0; --n) {
int ch = UChar(src[step + n]);
if (ch == '\\') {
if (n > 0 && src[step + n - 1] == ch)
--n;
mark = n;
break;
} else if (!isalnum(ch)) {
break;
}
}
if (mark < size) {
result = mark;
} else {
/* check if that would split a backslash-sequence */
for (n = size - 1; n > 0; --n) {
int ch = UChar(src[step + n]);
if (ch == '%') {
int need = op_length(src, step + n);
if ((n + need) > size) {
mark = n;
}
break;
}
}
if (mark < size) {
result = mark;
}
}
}
return result;
}
/*
* If we are going to wrap lines, we cannot leave literal spaces because that
* would be ambiguous if we split on that space.
*/
static char *
fill_spaces(const char *src)
{
const char *fill = "\\s";
size_t need = strlen(src);
size_t size = strlen(fill);
char *result = 0;
int pass;
size_t s, d;
for (pass = 0; pass < 2; ++pass) {
for (s = d = 0; src[s] != '\0'; ++s) {
if (src[s] == ' ') {
if (pass) {
_nc_STRCPY(&result[d], fill, need + 1 - d);
d += size;
} else {
need += size;
}
} else {
if (pass) {
result[d++] = src[s];
} else {
++d;
}
}
}
if (pass) {
result[d] = '\0';
} else {
result = calloc(need + 1, sizeof(char));
if (result == 0)
failed("fill_spaces");
}
}
return result;
}
typedef enum {
wOFF = 0
,w1ST = 1
,w2ND = 2
,wEND = 4
,wERR = 8
} WRAPMODE;
#define wrap_1ST(mode) ((mode)&w1ST)
#define wrap_END(mode) ((mode)&wEND)
#define wrap_ERR(mode) ((mode)&wERR)
static void
wrap_concat(const char *src, int need, unsigned mode)
{
int gaps = (int) strlen(separator);
int want = gaps + need;
did_wrap = (width <= 0);
if (wrap_1ST(mode)
&& column > indent
&& column + want > width) {
force_wrap();
}
if ((wrap_END(mode) && !wrap_ERR(mode)) &&
wrapped &&
(width >= 0) &&
(column + want) > width) {
int step = 0;
int used = width > WRAPPED ? width : WRAPPED;
int base = 0;
char *p, align[9];
const char *my_t = trailer;
char *fill = fill_spaces(src);
int last = (int) strlen(fill);
need = last;
if (TcOutput())
trailer = "\\\n\t ";
if (!TcOutput() && (p = strchr(fill, '=')) != 0) {
base = (int) (p + 1 - fill);
if (base > 8)
base = 8;
_nc_SPRINTF(align, _nc_SLIMIT(align) "%*s", base, " ");
} else if (column > 8) {
base = column - 8;
if (base > 8)
base = 8;
_nc_SPRINTF(align, _nc_SLIMIT(align) "%*s", base, " ");
} else {
align[base] = '\0';
}
/* "pretty" overrides wrapping if it already split the line */
if (!pretty || strchr(fill, '\n') == 0) {
int tag = 0;
if (TcOutput() && outbuf.used && !wrap_1ST(mode)) {
tag = 3;
}
while ((column + (need + gaps)) > used) {
int size = used - tag;
if (step) {
strcpy_DYN(&outbuf, align);
size -= base;
}
if (size > (last - step)) {
size = (last - step);
}
size = find_split(fill, step, size);
strncpy_DYN(&outbuf, fill + step, (size_t) size);
step += size;
need -= size;
if (need > 0) {
force_wrap();
did_wrap = TRUE;
tag = 0;
}
}
}
if (need > 0) {
if (step)
strcpy_DYN(&outbuf, align);
strcpy_DYN(&outbuf, fill + step);
}
if (wrap_END(mode))
strcpy_DYN(&outbuf, separator);
trailer = my_t;
force_wrap();
free(fill);
} else {
strcpy_DYN(&outbuf, src);
if (wrap_END(mode))
strcpy_DYN(&outbuf, separator);
column += (int) strlen(src);
}
}
static void
wrap_concat1(const char *src)
{
int need = (int) strlen(src);
wrap_concat(src, need, w1ST | wEND);
}
static void
wrap_concat3(const char *name, const char *eqls, const char *value)
{
int nlen = (int) strlen(name);
int elen = (int) strlen(eqls);
int vlen = (int) strlen(value);
wrap_concat(name, nlen + elen + vlen, w1ST);
wrap_concat(eqls, elen + vlen, w2ND);
wrap_concat(value, vlen, wEND);
}
#define IGNORE_SEP_TRAIL(first,last,sep_trail) \
if ((size_t)(last - first) > sizeof(sep_trail)-1 \
&& !strncmp(first, sep_trail, sizeof(sep_trail)-1)) \
first += sizeof(sep_trail)-2
/* Returns the nominal length of the buffer assuming it is termcap format,
* i.e., the continuation sequence is treated as a single character ":".
*
* There are several implementations of termcap which read the text into a
* fixed-size buffer. Generally they strip the newlines from the text, but may
* not do it until after the buffer is read. Also, "tc=" resolution may be
* expanded in the same buffer. This function is useful for measuring the size
* of the best fixed-buffer implementation; the worst case may be much worse.
*/
#ifdef TEST_TERMCAP_LENGTH
static int
termcap_length(const char *src)
{
static const char pattern[] = ":\\\n\t:";
int len = 0;
const char *const t = src + strlen(src);
while (*src != '\0') {
IGNORE_SEP_TRAIL(src, t, pattern);
src++;
len++;
}
return len;
}
#else
#define termcap_length(src) strlen(src)
#endif
static void
indent_DYN(DYNBUF * buffer, int level)
{
int n;
for (n = 0; n < level; n++)
strncpy_DYN(buffer, "\t", (size_t) 1);
}
/*
* Check if the current line which was begun consists only of a tab and the
* given leading text.
*/
static bool
leading_DYN(DYNBUF * buffer, const char *leading)
{
bool result = FALSE;
size_t need = strlen(leading);
if (buffer->used > need) {
need = buffer->used - need;
if (!strcmp(buffer->text + need, leading)) {
result = TRUE;
while (--need != 0) {
if (buffer->text[need] == '\n') {
break;
}
if (buffer->text[need] != '\t') {
result = FALSE;
break;
}
}
}
}
return result;
}
bool
has_params(const char *src, bool formatting)
{
bool result = FALSE;
int len = (int) strlen(src);
int n;
bool ifthen = FALSE;
bool params = FALSE;
for (n = 0; n < len - 1; ++n) {
if (!strncmp(src + n, "%p", (size_t) 2)) {
params = TRUE;
} else if (!strncmp(src + n, "%;", (size_t) 2)) {
ifthen = TRUE;
result = params;
break;
}
}
if (!ifthen) {
if (formatting) {
result = ((len > 50) && params);
} else {
result = params;
}
}
return result;
}
static char *
fmt_complex(TERMTYPE2 *tterm, const char *capability, char *src, int level)
{
bool percent = FALSE;
bool params = has_params(src, TRUE);
while (*src != '\0') {
switch (*src) {
case '^':
percent = FALSE;
strncpy_DYN(&tmpbuf, src++, (size_t) 1);
break;
case '\\':
percent = FALSE;
strncpy_DYN(&tmpbuf, src++, (size_t) 1);
break;
case '%':
percent = TRUE;
break;
case '?': /* "if" */
case 't': /* "then" */
case 'e': /* "else" */
if (percent) {
percent = FALSE;
tmpbuf.text[tmpbuf.used - 1] = '\n';
/* treat a "%e" as else-if, on the same level */
if (*src == 'e') {
indent_DYN(&tmpbuf, level);
strncpy_DYN(&tmpbuf, "%", (size_t) 1);
strncpy_DYN(&tmpbuf, src, (size_t) 1);
src++;
params = has_params(src, TRUE);
if (!params && *src != '\0' && *src != '%') {
strncpy_DYN(&tmpbuf, "\n", (size_t) 1);
indent_DYN(&tmpbuf, level + 1);
}
} else {
indent_DYN(&tmpbuf, level + 1);
strncpy_DYN(&tmpbuf, "%", (size_t) 1);
strncpy_DYN(&tmpbuf, src, (size_t) 1);
if (*src++ == '?') {
src = fmt_complex(tterm, capability, src, level + 1);
if (*src != '\0' && *src != '%') {
strncpy_DYN(&tmpbuf, "\n", (size_t) 1);
indent_DYN(&tmpbuf, level + 1);
}
} else if (level == 1) {
if (checking)
_nc_warning("%s: %%%c without %%? in %s",
_nc_first_name(tterm->term_names),
*src, capability);
}
}
continue;
}
break;
case ';': /* "endif" */
if (percent) {
percent = FALSE;
if (level > 1) {
tmpbuf.text[tmpbuf.used - 1] = '\n';
indent_DYN(&tmpbuf, level);
strncpy_DYN(&tmpbuf, "%", (size_t) 1);
strncpy_DYN(&tmpbuf, src++, (size_t) 1);
if (src[0] == '%'
&& src[1] != '\0'
&& (strchr("?e;", src[1])) == 0) {
tmpbuf.text[tmpbuf.used++] = '\n';
indent_DYN(&tmpbuf, level);
}
return src;
}
if (checking)
_nc_warning("%s: %%; without %%? in %s",
_nc_first_name(tterm->term_names),
capability);
}
break;
case 'p':
if (percent && params && !leading_DYN(&tmpbuf, "%")) {
tmpbuf.text[tmpbuf.used - 1] = '\n';
indent_DYN(&tmpbuf, level + 1);
strncpy_DYN(&tmpbuf, "%", (size_t) 1);
}
percent = FALSE;
break;
case ' ':
strncpy_DYN(&tmpbuf, "\\s", (size_t) 2);
++src;
continue;
default:
percent = FALSE;
break;
}
strncpy_DYN(&tmpbuf, src++, (size_t) 1);
}
return src;
}
/*
* Make "large" numbers a little easier to read by showing them in hexadecimal
* if they are "close" to a power of two.
*/
static const char *
number_format(int value)
{
const char *result = "%d";
if ((outform != F_TERMCAP) && (value > 255)) {
unsigned long lv = (unsigned long) value;
int bits = sizeof(unsigned long) * 8;
int nn;
for (nn = 8; nn < bits; ++nn) {
unsigned long mm;
mm = 1UL << nn;
if ((mm - 16) <= lv && (mm + 16) > lv) {
result = "%#x";
break;
}
}
}
return result;
}
#define SAME_CAP(n,cap) (&tterm->Strings[n] == &cap)
#define EXTRA_CAP 20
int
fmt_entry(TERMTYPE2 *tterm,
PredFunc pred,
int content_only,
int suppress_untranslatable,
int infodump,
int numbers)
{
PredIdx i, j;
char buffer[MAX_TERMINFO_LENGTH + EXTRA_CAP];
NCURSES_CONST char *name;
int predval, len;
PredIdx num_bools = 0;
PredIdx num_values = 0;
PredIdx num_strings = 0;
bool outcount = 0;
#define WRAP_CONCAT1(s) wrap_concat1(s); outcount = TRUE
#define WRAP_CONCAT WRAP_CONCAT1(buffer)
len = 12; /* terminfo file-header */
if (pred == 0) {
cur_type = tterm;
pred = dump_predicate;
}
strcpy_DYN(&outbuf, 0);
if (content_only) {
column = indent; /* workaround to prevent empty lines */
} else {
strcpy_DYN(&outbuf, tterm->term_names);
/*
* Colon is legal in terminfo descriptions, but not in termcap.
*/
if (!infodump) {
char *p = outbuf.text;
while (*p) {
if (*p == ':') {
*p = '=';
}
++p;
}
}
strcpy_DYN(&outbuf, separator);
column = (int) outbuf.used;
if (height > 1)
force_wrap();
}
for_each_boolean(j, tterm) {
i = BoolIndirect(j);
name = ExtBoolname(tterm, (int) i, bool_names);
assert(strlen(name) < sizeof(buffer) - EXTRA_CAP);
if (!version_filter(BOOLEAN, i))
continue;
else if (isObsolete(outform, name))
continue;
predval = pred(BOOLEAN, i);
if (predval != FAIL) {
_nc_STRCPY(buffer, name, sizeof(buffer));
if (predval <= 0)
_nc_STRCAT(buffer, "@", sizeof(buffer));
else if (i + 1 > num_bools)
num_bools = i + 1;
WRAP_CONCAT;
}
}
if (column != indent && height > 1)
force_wrap();
for_each_number(j, tterm) {
i = NumIndirect(j);
name = ExtNumname(tterm, (int) i, num_names);
assert(strlen(name) < sizeof(buffer) - EXTRA_CAP);
if (!version_filter(NUMBER, i))
continue;
else if (isObsolete(outform, name))
continue;
predval = pred(NUMBER, i);
if (predval != FAIL) {
if (tterm->Numbers[i] < 0) {
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"%s@", name);
} else {
size_t nn;
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"%s#", name);
nn = strlen(buffer);
_nc_SPRINTF(buffer + nn, _nc_SLIMIT(sizeof(buffer) - nn)
number_format(tterm->Numbers[i]),
tterm->Numbers[i]);
if (i + 1 > num_values)
num_values = i + 1;
}
WRAP_CONCAT;
}
}
if (column != indent && height > 1)
force_wrap();
len += (int) (num_bools
+ num_values * 2
+ strlen(tterm->term_names) + 1);
if (len & 1)
len++;
#undef CUR
#define CUR tterm->
if (outform == F_TERMCAP) {
if (VALID_STRING(termcap_reset)) {
if (VALID_STRING(init_3string)
&& !strcmp(init_3string, termcap_reset))
DISCARD(init_3string);
if (VALID_STRING(reset_2string)
&& !strcmp(reset_2string, termcap_reset))
DISCARD(reset_2string);
}
}
for_each_string(j, tterm) {
char *capability;
i = StrIndirect(j);
name = ExtStrname(tterm, (int) i, str_names);
assert(strlen(name) < sizeof(buffer) - EXTRA_CAP);
capability = tterm->Strings[i];
if (!version_filter(STRING, i))
continue;
else if (isObsolete(outform, name))
continue;
#if NCURSES_XNAMES
/*
* Extended names can be longer than 2 characters, but termcap programs
* cannot read those (filter them out).
*/
if (outform == F_TERMCAP && (strlen(name) > 2))
continue;
#endif
if (outform == F_TERMCAP) {
/*
* Some older versions of vi want rmir/smir to be defined
* for ich/ich1 to work. If they're not defined, force
* them to be output as defined and empty.
*/
if (PRESENT(insert_character) || PRESENT(parm_ich)) {
if (SAME_CAP(i, enter_insert_mode)
&& enter_insert_mode == ABSENT_STRING) {
_nc_STRCPY(buffer, "im=", sizeof(buffer));
WRAP_CONCAT;
continue;
}
if (SAME_CAP(i, exit_insert_mode)
&& exit_insert_mode == ABSENT_STRING) {
_nc_STRCPY(buffer, "ei=", sizeof(buffer));
WRAP_CONCAT;
continue;
}
}
/*
* termcap applications such as screen will be confused if sgr0
* is translated to a string containing rmacs. Filter that out.
*/
if (PRESENT(exit_attribute_mode)) {
if (SAME_CAP(i, exit_attribute_mode)) {
char *trimmed_sgr0;
char *my_sgr = set_attributes;
set_attributes = save_sgr;
trimmed_sgr0 = _nc_trim_sgr0(tterm);
if (strcmp(capability, trimmed_sgr0)) {
capability = trimmed_sgr0;
} else {
if (trimmed_sgr0 != exit_attribute_mode)
free(trimmed_sgr0);
}
set_attributes = my_sgr;
}
}
}
predval = pred(STRING, i);
buffer[0] = '\0';
if (predval != FAIL) {
if (VALID_STRING(capability)
&& i + 1 > num_strings)
num_strings = i + 1;
if (!VALID_STRING(capability)) {
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"%s@", name);
WRAP_CONCAT;
} else if (TcOutput()) {
char *srccap = _nc_tic_expand(capability, TRUE, numbers);
int params = ((i < (int) SIZEOF(parametrized))
? parametrized[i]
: ((*srccap == 'k')
? 0
: has_params(srccap, FALSE)));
char *cv = _nc_infotocap(name, srccap, params);
if (cv == 0) {
if (outform == F_TCONVERR) {
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"%s=!!! %s WILL NOT CONVERT !!!",
name, srccap);
WRAP_CONCAT;
} else if (suppress_untranslatable) {
continue;
} else {
char *s = srccap, *d = buffer;
int need = 3 + (int) strlen(name);
while ((*d = *s++) != 0) {
if ((d - buffer + 2) >= (int) sizeof(buffer)) {
fprintf(stderr,
"%s: value for %s is too long\n",
_nc_progname,
name);
*d = '\0';
break;
}
if (*d == ':') {
*d++ = '\\';
*d = ':';
} else if (*d == '\\') {
if ((*++d = *s++) == '\0')
break;
}
d++;
*d = '\0';
}
need += (int) (d - buffer);
wrap_concat("..", need, w1ST | wERR);
need -= 2;
wrap_concat(name, need, wOFF | wERR);
need -= (int) strlen(name);
wrap_concat("=", need, w2ND | wERR);
need -= 1;
wrap_concat(buffer, need, wEND | wERR);
outcount = TRUE;
}
} else {
wrap_concat3(name, "=", cv);
}
len += (int) strlen(capability) + 1;
} else {
char *src = _nc_tic_expand(capability,
outform == F_TERMINFO, numbers);
strcpy_DYN(&tmpbuf, 0);
strcpy_DYN(&tmpbuf, name);
strcpy_DYN(&tmpbuf, "=");
if (pretty
&& (outform == F_TERMINFO
|| outform == F_VARIABLE)) {
fmt_complex(tterm, name, src, 1);
} else {
strcpy_DYN(&tmpbuf, src);
}
len += (int) strlen(capability) + 1;
WRAP_CONCAT1(tmpbuf.text);
}
}
/* e.g., trimmed_sgr0 */
if (VALID_STRING(capability) &&
capability != tterm->Strings[i])
free(capability);
}
len += (int) (num_strings * 2);
/*
* This piece of code should be an effective inverse of the functions
* postprocess_terminfo() and postprocess_terminfo() in parse_entry.c.
* Much more work should be done on this to support dumping termcaps.
*/
if (tversion == V_HPUX) {
if (VALID_STRING(memory_lock)) {
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"meml=%s", memory_lock);
WRAP_CONCAT;
}
if (VALID_STRING(memory_unlock)) {
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"memu=%s", memory_unlock);
WRAP_CONCAT;
}
} else if (tversion == V_AIX) {
if (VALID_STRING(acs_chars)) {
bool box_ok = TRUE;
const char *acstrans = "lqkxjmwuvtn";
const char *cp;
char *tp, *sp, boxchars[11];
tp = boxchars;
for (cp = acstrans; *cp; cp++) {
sp = (strchr) (acs_chars, *cp);
if (sp)
*tp++ = sp[1];
else {
box_ok = FALSE;
break;
}
}
tp[0] = '\0';
if (box_ok) {
char *tmp = _nc_tic_expand(boxchars,
(outform == F_TERMINFO),
numbers);
_nc_STRCPY(buffer, "box1=", sizeof(buffer));
while (*tmp != '\0') {
size_t have = strlen(buffer);
size_t next = strlen(tmp);
size_t want = have + next + 1;
size_t last = next;
char save = '\0';
/*
* If the expanded string is too long for the buffer,
* chop it off and save the location where we chopped it.
*/
if (want >= sizeof(buffer)) {
save = tmp[last];
tmp[last] = '\0';
}
_nc_STRCAT(buffer, tmp, sizeof(buffer));
/*
* If we chopped the buffer, replace the missing piece and
* shift everything to append the remainder.
*/
if (save != '\0') {
next = 0;
tmp[last] = save;
while ((tmp[next] = tmp[last + next]) != '\0') {
++next;
}
} else {
break;
}
}
WRAP_CONCAT;
}
}
}
/*
* kludge: trim off trailer to avoid an extra blank line
* in infocmp -u output when there are no string differences
*/
if (outcount) {
bool trimmed = FALSE;
j = (PredIdx) outbuf.used;
if (wrapped && did_wrap) {
/* EMPTY */ ;
} else if (j >= 2
&& outbuf.text[j - 1] == '\t'
&& outbuf.text[j - 2] == '\n') {
outbuf.used -= 2;
trimmed = TRUE;
} else if (j >= 4
&& outbuf.text[j - 1] == ':'
&& outbuf.text[j - 2] == '\t'
&& outbuf.text[j - 3] == '\n'
&& outbuf.text[j - 4] == '\\') {
outbuf.used -= 4;
trimmed = TRUE;
}
if (trimmed) {
outbuf.text[outbuf.used] = '\0';
column = oldcol;
strcpy_DYN(&outbuf, " ");
}
}
#if 0
fprintf(stderr, "num_bools = %d\n", num_bools);
fprintf(stderr, "num_values = %d\n", num_values);
fprintf(stderr, "num_strings = %d\n", num_strings);
fprintf(stderr, "term_names=%s, len=%d, strlen(outbuf)=%d, outbuf=%s\n",
tterm->term_names, len, outbuf.used, outbuf.text);
#endif
/*
* Here's where we use infodump to trigger a more stringent length check
* for termcap-translation purposes.
* Return the length of the raw entry, without tc= expansions,
* It gives an idea of which entries are deadly to even *scan past*,
* as opposed to *use*.
*/
return (infodump ? len : (int) termcap_length(outbuf.text));
}
static bool
kill_string(TERMTYPE2 *tterm, const char *const cap)
{
unsigned n;
for (n = 0; n < NUM_STRINGS(tterm); ++n) {
if (cap == tterm->Strings[n]) {
tterm->Strings[n] = ABSENT_STRING;
return TRUE;
}
}
return FALSE;
}
static char *
find_string(TERMTYPE2 *tterm, char *name)
{
PredIdx n;
for (n = 0; n < NUM_STRINGS(tterm); ++n) {
if (version_filter(STRING, n)
&& !strcmp(name, strnames[n])) {
char *cap = tterm->Strings[n];
if (VALID_STRING(cap)) {
return cap;
}
break;
}
}
return ABSENT_STRING;
}
/*
* This is used to remove function-key labels from a termcap entry to
* make it smaller.
*/
static int
kill_labels(TERMTYPE2 *tterm, int target)
{
int n;
int result = 0;
char name[20];
for (n = 0; n <= 10; ++n) {
char *cap;
_nc_SPRINTF(name, _nc_SLIMIT(sizeof(name)) "lf%d", n);
cap = find_string(tterm, name);
if (VALID_STRING(cap)
&& kill_string(tterm, cap)) {
target -= (int) (strlen(cap) + 5);
++result;
if (target < 0)
break;
}
}
return result;
}
/*
* This is used to remove function-key definitions from a termcap entry to
* make it smaller.
*/
static int
kill_fkeys(TERMTYPE2 *tterm, int target)
{
int n;
int result = 0;
char name[20];
for (n = 60; n >= 0; --n) {
char *cap;
_nc_SPRINTF(name, _nc_SLIMIT(sizeof(name)) "kf%d", n);
cap = find_string(tterm, name);
if (VALID_STRING(cap)
&& kill_string(tterm, cap)) {
target -= (int) (strlen(cap) + 5);
++result;
if (target < 0)
break;
}
}
return result;
}
/*
* Check if the given acsc string is a 1-1 mapping, i.e., just-like-vt100.
* Also, since this is for termcap, we only care about the line-drawing map.
*/
#define isLine(c) (strchr("lmkjtuvwqxn", c) != 0)
static bool
one_one_mapping(const char *mapping)
{
bool result = TRUE;
if (VALID_STRING(mapping)) {
int n = 0;
while (mapping[n] != '\0' && mapping[n + 1] != '\0') {
if (isLine(mapping[n]) &&
mapping[n] != mapping[n + 1]) {
result = FALSE;
break;
}
n += 2;
}
}
return result;
}
#define FMT_ENTRY() \
fmt_entry(tterm, pred, \
0, \
suppress_untranslatable, \
infodump, numbers)
#define SHOW_WHY PRINTF
static bool
purged_acs(TERMTYPE2 *tterm)
{
bool result = FALSE;
if (VALID_STRING(acs_chars)) {
if (!one_one_mapping(acs_chars)) {
enter_alt_charset_mode = ABSENT_STRING;
exit_alt_charset_mode = ABSENT_STRING;
SHOW_WHY("# (rmacs/smacs removed for consistency)\n");
}
result = TRUE;
}
return result;
}
static void
encode_b64(char *target, char *source, unsigned state, int *saved)
{
/* RFC-4648 */
static const char data[] =
"ABCDEFGHIJKLMNOPQRSTUVWXYZ"
"abcdefghijklmnopqrstuvwxyz"
"0123456789" "-_";
int ch = UChar(source[state]);
switch (state % 3) {
case 0:
*target++ = data[(ch >> 2) & 077];
*saved = (ch << 4);
break;
case 1:
*target++ = data[((ch >> 4) | *saved) & 077];
*saved = (ch << 2);
break;
case 2:
*target++ = data[((ch >> 6) | *saved) & 077];
*target++ = data[ch & 077];
*saved = 0;
break;
}
*target = '\0';
}
/*
* Dump a single entry.
*/
void
dump_entry(TERMTYPE2 *tterm,
int suppress_untranslatable,
int limited,
int numbers,
PredFunc pred)
{
TERMTYPE2 save_tterm;
int critlen;
const char *legend;
bool infodump;
if (quickdump) {
char bigbuf[65536];
unsigned offset = 0;
separator = "";
trailer = "\n";
indent = 0;
if (_nc_write_object(tterm, bigbuf, &offset, sizeof(bigbuf)) == OK) {
char numbuf[80];
unsigned n;
if (quickdump & 1) {
if (outbuf.used)
wrap_concat1("\n");
wrap_concat1("hex:");
for (n = 0; n < offset; ++n) {
_nc_SPRINTF(numbuf, _nc_SLIMIT(sizeof(numbuf))
"%02X", UChar(bigbuf[n]));
wrap_concat1(numbuf);
}
}
if (quickdump & 2) {
static char padding[] =
{0, 0};
int value = 0;
if (outbuf.used)
wrap_concat1("\n");
wrap_concat1("b64:");
for (n = 0; n < offset; ++n) {
encode_b64(numbuf, bigbuf, n, &value);
wrap_concat1(numbuf);
}
switch (n % 3) {
case 0:
break;
case 1:
encode_b64(numbuf, padding, 1, &value);
wrap_concat1(numbuf);
wrap_concat1("==");
break;
case 2:
encode_b64(numbuf, padding, 1, &value);
wrap_concat1(numbuf);
wrap_concat1("=");
break;
}
}
}
return;
}
if (TcOutput()) {
critlen = MAX_TERMCAP_LENGTH;
legend = "older termcap";
infodump = FALSE;
set_obsolete_termcaps(tterm);
} else {
critlen = MAX_TERMINFO_LENGTH;
legend = "terminfo";
infodump = TRUE;
}
save_sgr = set_attributes;
if ((FMT_ENTRY() > critlen)
&& TcOutput()
&& limited) {
save_tterm = *tterm;
if (!suppress_untranslatable) {
SHOW_WHY("# (untranslatable capabilities removed to fit entry within %d bytes)\n",
critlen);
suppress_untranslatable = TRUE;
}
if (FMT_ENTRY() > critlen) {
/*
* We pick on sgr because it is a nice long string capability that
* is really just an optimization hack. Another good candidate is
* acsc since it is both long and unused by BSD termcap.
*/
bool changed = FALSE;
#if NCURSES_XNAMES
/*
* Extended names are most likely function-key definitions. Drop
* those first.
*/
unsigned n;
for (n = STRCOUNT; n < NUM_STRINGS(tterm); n++) {
const char *name = ExtStrname(tterm, (int) n, strnames);
if (VALID_STRING(tterm->Strings[n])) {
set_attributes = ABSENT_STRING;
/* we remove long names anyway - only report the short */
if (strlen(name) <= 2) {
SHOW_WHY("# (%s removed to fit entry within %d bytes)\n",
name,
critlen);
}
changed = TRUE;
if (FMT_ENTRY() <= critlen)
break;
}
}
#endif
if (VALID_STRING(set_attributes)) {
set_attributes = ABSENT_STRING;
SHOW_WHY("# (sgr removed to fit entry within %d bytes)\n",
critlen);
changed = TRUE;
}
if (!changed || (FMT_ENTRY() > critlen)) {
if (purged_acs(tterm)) {
acs_chars = ABSENT_STRING;
SHOW_WHY("# (acsc removed to fit entry within %d bytes)\n",
critlen);
changed = TRUE;
}
}
if (!changed || (FMT_ENTRY() > critlen)) {
int oldversion = tversion;
int len;
tversion = V_BSD;
SHOW_WHY("# (terminfo-only capabilities suppressed to fit entry within %d bytes)\n",
critlen);
len = FMT_ENTRY();
if (len > critlen
&& kill_labels(tterm, len - critlen)) {
SHOW_WHY("# (some labels capabilities suppressed to fit entry within %d bytes)\n",
critlen);
len = FMT_ENTRY();
}
if (len > critlen
&& kill_fkeys(tterm, len - critlen)) {
SHOW_WHY("# (some function-key capabilities suppressed to fit entry within %d bytes)\n",
critlen);
len = FMT_ENTRY();
}
if (len > critlen) {
(void) fprintf(stderr,
"%s: %s entry is %d bytes long\n",
_nc_progname,
_nc_first_name(tterm->term_names),
len);
SHOW_WHY("# WARNING: this entry, %d bytes long, may core-dump %s libraries!\n",
len, legend);
}
tversion = oldversion;
}
set_attributes = save_sgr;
*tterm = save_tterm;
}
} else if (!version_filter(STRING, STR_IDX(acs_chars))) {
save_tterm = *tterm;
if (purged_acs(tterm)) {
(void) FMT_ENTRY();
}
*tterm = save_tterm;
}
}
void
dump_uses(const char *value, bool infodump)
/* dump "use=" clauses in the appropriate format */
{
char buffer[MAX_TERMINFO_LENGTH + EXTRA_CAP];
int limit = (VALID_STRING(value) ? (int) strlen(value) : 0);
const char *cap = infodump ? "use" : "tc";
if (TcOutput())
trim_trailing();
if (limit == 0) {
_nc_warning("empty \"%s\" field", cap);
value = "";
} else if (limit > MAX_ALIAS) {
_nc_warning("\"%s\" field too long (%d), limit to %d",
cap, limit, MAX_ALIAS);
limit = MAX_ALIAS;
}
_nc_SPRINTF(buffer, _nc_SLIMIT(sizeof(buffer))
"%s=%.*s", cap, limit, value);
wrap_concat1(buffer);
}
int
show_entry(void)
{
/*
* Trim any remaining whitespace.
*/
if (outbuf.used != 0) {
bool infodump = !TcOutput();
char delim = (char) (infodump ? ',' : ':');
int j;
for (j = (int) outbuf.used - 1; j > 0; --j) {
char ch = outbuf.text[j];
if (ch == '\n') {
;
} else if (isspace(UChar(ch))) {
outbuf.used = (size_t) j;
} else if (!infodump && ch == '\\') {
outbuf.used = (size_t) j;
} else if (ch == delim && (outbuf.text[j - 1] != '\\')) {
outbuf.used = (size_t) (j + 1);
} else {
break;
}
}
outbuf.text[outbuf.used] = '\0';
}
if (outbuf.text != 0) {
(void) fputs(outbuf.text, stdout);
putchar('\n');
}
return (int) outbuf.used;
}
void
compare_entry(PredHook hook,
TERMTYPE2 *tp GCC_UNUSED,
bool quiet)
/* compare two entries */
{
PredIdx i, j;
NCURSES_CONST char *name;
if (!quiet)
fputs(" comparing booleans.\n", stdout);
for_each_boolean(j, tp) {
i = BoolIndirect(j);
name = ExtBoolname(tp, (int) i, bool_names);
if (isObsolete(outform, name))
continue;
(*hook) (CMP_BOOLEAN, i, name);
}
if (!quiet)
fputs(" comparing numbers.\n", stdout);
for_each_number(j, tp) {
i = NumIndirect(j);
name = ExtNumname(tp, (int) i, num_names);
if (isObsolete(outform, name))
continue;
(*hook) (CMP_NUMBER, i, name);
}
if (!quiet)
fputs(" comparing strings.\n", stdout);
for_each_string(j, tp) {
i = StrIndirect(j);
name = ExtStrname(tp, (int) i, str_names);
if (isObsolete(outform, name))
continue;
(*hook) (CMP_STRING, i, name);
}
/* (void) fputs(" comparing use entries.\n", stdout); */
(*hook) (CMP_USE, 0, "use");
}
#define NOTSET(s) ((s) == 0)
/*
* 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
set_obsolete_termcaps(TERMTYPE2 *tp)
{
#include "capdefaults.c"
}
/*
* Convert an alternate-character-set string to canonical form: sorted and
* unique.
*/
void
repair_acsc(TERMTYPE2 *tp)
{
if (VALID_STRING(acs_chars)) {
size_t n;
char mapped[256];
unsigned source;
unsigned target;
bool fix_needed = FALSE;
for (n = 0, source = 0; acs_chars[n] != 0; n++) {
target = UChar(acs_chars[n]);
if (source >= target) {
fix_needed = TRUE;
break;
}
source = target;
if (acs_chars[n + 1])
n++;
}
if (fix_needed) {
size_t m;
char extra = 0;
memset(mapped, 0, sizeof(mapped));
for (n = 0; acs_chars[n] != 0; n++) {
source = UChar(acs_chars[n]);
if ((target = (unsigned char) acs_chars[n + 1]) != 0) {
mapped[source] = (char) target;
n++;
} else {
extra = (char) source;
}
}
for (n = m = 0; n < sizeof(mapped); n++) {
if (mapped[n]) {
acs_chars[m++] = (char) n;
acs_chars[m++] = mapped[n];
}
}
if (extra)
acs_chars[m++] = extra; /* garbage in, garbage out */
acs_chars[m] = 0;
}
}
}
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