static lua_Number readhexa (const char **s, lua_Number r, int *count) {
for (; lisxdigit(cast_uchar(**s)); (*s)++) { /* read integer part */
r = (r * cast_num(16.0)) + cast_num(luaO_hexavalue(cast_uchar(**s)));
(*count)++;
}
return r;
}
/*
** convert an hexadecimal numeric string to a number, following
** C99 specification for 'strtod'
*/
static lua_Number lua_strx2number (const char *s, char **endptr) {
lua_Number r = 0.0; /* result (accumulator) */
int sigdig = 0; /* number of significant digits */
int nosigdig = 0; /* number of non-significant digits */
int e = 0; /* exponent correction */
int neg = 0; /* 1 if number is negative */
int dot = 0; /* true after seen a dot */
*endptr = cast(char *, s); /* nothing is valid yet */
while (lisspace(cast_uchar(*s))) s++; /* skip initial spaces */
neg = isneg(&s); /* check signal */
if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X'))) /* check '0x' */
return 0.0; /* invalid format (no '0x') */
for (s += 2; ; s++) { /* skip '0x' and read numeral */
if (*s == '.') {
if (dot) break; /* second dot? stop loop */
else dot = 1;
}
else if (lisxdigit(cast_uchar(*s))) {
if (sigdig == 0 && *s == '0') { /* non-significant zero? */
nosigdig++;
if (dot) e--; /* zero after dot? correct exponent */
}
else {
if (++sigdig <= MAXSIGDIG) { /* can read it without overflow? */
r = (r * cast_num(16.0)) + luaO_hexavalue(cast_uchar(*s));
if (dot) e--; /* decimal digit */
}
else /* too many digits; ignore */
if (!dot) e++; /* still count it for exponent */
}
}
else break; /* neither a dot nor a digit */
}
if (nosigdig + sigdig == 0) /* no digits? */
return 0.0; /* invalid format */
*endptr = cast(char *, s); /* valid up to here */
e *= 4; /* each digit multiplies/divides value by 2^4 */
if (*s == 'p' || *s == 'P') { /* exponent part? */
int exp1 = 0; /* exponent value */
int neg1; /* exponent signal */
s++; /* skip 'p' */
neg1 = isneg(&s); /* signal */
if (!lisdigit(cast_uchar(*s)))
return 0.0; /* invalid; must have at least one digit */
while (lisdigit(cast_uchar(*s))) /* read exponent */
exp1 = exp1 * 10 + *(s++) - '0';
if (neg1) exp1 = -exp1;
e += exp1;
*endptr = cast(char *, s); /* valid up to here */
}
char *tempnam(const char *dir, const char *pfx)
{
static int counter = 0;
unsigned char *d, *s, *a;
int l;
if (!(d = cast_uchar getenv("TMPDIR"))) {
if (dir) d = cast_uchar dir;
else if (!(d = cast_uchar getenv("TMP")) && !(d = cast_uchar getenv("TEMP"))) {
#ifdef P_tmpdir
d = cast_uchar(P_tmpdir);
#else
d = cast_uchar "/tmp";
#endif
}
}
l = 0;
s = init_str();
add_to_str(&s, &l, d);
if (s[0] && s[strlen(cast_const_char s) - 1] != '/') add_chr_to_str(&s, &l, '/');
add_to_str(&s, &l, cast_uchar pfx);
add_num_to_str(&s, &l, counter++);
a = cast_uchar strdup(cast_const_char s);
mem_free(s);
return cast_char a;
}
int luaZ_fill (ZIO *z) {
size_t size;
terra_State *T = z->L;
const char *buff;
buff = z->reader(T->L, z->data, &size);
if (buff == NULL || size == 0)
return EOZ;
z->n = size - 1; /* discount char being returned */
z->p = buff;
return cast_uchar(*(z->p++));
}
int luaO_str2d (const char *s, size_t len, lua_Number *result) {
char *endptr;
if (strpbrk(s, "nN")) /* reject 'inf' and 'nan' */
return 0;
else if (strpbrk(s, "xX")) /* hexa? */
*result = lua_strx2number(s, &endptr);
else
*result = lua_str2number(s, &endptr);
if (endptr == s) return 0; /* nothing recognized */
while (lisspace(cast_uchar(*endptr))) endptr++;
return (endptr == s + len); /* OK if no trailing characters */
}
const char *luaX_token2str (LexState *ls, int token) {
if (token < FIRST_RESERVED) { /* single-byte symbols? */
lua_assert(token == cast_uchar(token));
return luaO_pushfstring(ls->L, "'%c'", token);
}
else {
const char *s = luaX_tokens[token - FIRST_RESERVED];
if (token < TK_EOS) /* fixed format (symbols and reserved words)? */
return luaO_pushfstring(ls->L, "'%s'", s);
else /* names, strings, and numerals */
return s;
}
}
/*
** convert an hexadecimal numeric string to a number, following
** C99 specification for 'strtod'
*/
static lua_Number lua_strx2number (const char *s, char **endptr) {
lua_Number r = 0.0;
int e = 0, i = 0;
int neg = 0; /* 1 if number is negative */
*endptr = cast(char *, s); /* nothing is valid yet */
while (lisspace(cast_uchar(*s))) s++; /* skip initial spaces */
neg = isneg(&s); /* check signal */
if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X'))) /* check '0x' */
return 0.0; /* invalid format (no '0x') */
s += 2; /* skip '0x' */
r = readhexa(&s, r, &i); /* read integer part */
if (*s == '.') {
s++; /* skip dot */
r = readhexa(&s, r, &e); /* read fractional part */
}
if (i == 0 && e == 0)
return 0.0; /* invalid format (no digit) */
e *= -4; /* each fractional digit divides value by 2^-4 */
*endptr = cast(char *, s); /* valid up to here */
if (*s == 'p' || *s == 'P') { /* exponent part? */
int exp1 = 0;
int neg1;
s++; /* skip 'p' */
neg1 = isneg(&s); /* signal */
if (!lisdigit(cast_uchar(*s)))
goto ret; /* must have at least one digit */
while (lisdigit(cast_uchar(*s))) /* read exponent */
exp1 = exp1 * 10 + *(s++) - '0';
if (neg1) exp1 = -exp1;
e += exp1;
}
*endptr = cast(char *, s); /* valid up to here */
ret:
if (neg) r = -r;
return l_mathop(ldexp)(r, e);
}
unsigned char *get_text_translation(unsigned char *text, struct terminal *term)
{
unsigned char **current_tra;
struct conv_table *conv_table;
unsigned char *trn;
int charset;
if (!term) charset = 0;
else if (term->spec) charset = term->spec->charset;
else charset = utf8_table;
if (is_direct_text(text)) return text;
if ((current_tra = translation_array[current_language][charset])) {
unsigned char *tt;
if ((trn = current_tra[text - dummyarray])) return trn;
tr:
if (!(tt = cast_uchar translations[current_language].t[text - dummyarray].name)) {
trn = cast_uchar translation_english[text - dummyarray].name;
} else {
struct document_options l_opt;
memset(&l_opt, 0, sizeof(l_opt));
l_opt.plain = 0;
l_opt.cp = charset;
conv_table = get_translation_table(current_lang_charset, charset);
trn = convert_string(conv_table, tt, (int)strlen(cast_const_char tt), &l_opt);
if (!strcmp(cast_const_char trn, cast_const_char tt)) {
mem_free(trn);
trn = tt;
}
}
current_tra[text - dummyarray] = trn;
} else {
if (current_lang_charset && charset != current_lang_charset) {
current_tra = translation_array[current_language][charset] = mem_alloc(sizeof (unsigned char **) * T__N_TEXTS);
memset(current_tra, 0, sizeof (unsigned char **) * T__N_TEXTS);
goto tr;
}
if (!(trn = cast_uchar translations[current_language].t[text - dummyarray].name)) {
trn = cast_uchar(translations[current_language].t[text - dummyarray].name = translation_english[text - dummyarray].name); /* modifying translation structure */
}
}
return trn;
}
static lua_Number lua_strb2number (const char *s, char **endptr) {
lua_Number r = 0.0;
int i = 0; int f = 0;
*endptr = cast(char *, s); /* nothing is valid yet */
while (lisspace(cast_uchar(*s))) s++; /* skip initial spaces */
if (!(*s == '0' && (*(s + 1) == 'b' || *(s + 1) == 'B'))) /* check '0b' */
return 0.0; /* invalid format (no '0b') */
s += 2; /* skip '0b' */
while ((*s == '0') || (*s == '1'))
{
f = 0;
r *= 2.0;
if (*s == '1') r += 1.0;
i++; s++;
while (*s == '_') {s++; f = 1;}
}
if ((i == 0) || (f > 0))
return 0.0; /* invalid format */
*endptr = cast(char *, s); /* valid up to here */
return r;
}
