static int
rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const char **fn)
{
VALUE features, this_feature_index = Qnil, v, p, load_path = 0;
const char *f, *e;
long i, len, elen, n;
st_table *loading_tbl, *features_index;
st_data_t data;
int type;
if (fn) *fn = 0;
if (ext) {
elen = strlen(ext);
len = strlen(feature) - elen;
type = rb ? 'r' : 's';
}
else {
len = strlen(feature);
elen = 0;
type = 0;
}
features = get_loaded_features();
features_index = get_loaded_features_index();
st_lookup(features_index, (st_data_t)feature, (st_data_t *)&this_feature_index);
/* We search `features` for an entry such that either
"#{features[i]}" == "#{load_path[j]}/#{feature}#{e}"
for some j, or
"#{features[i]}" == "#{feature}#{e}"
Here `e` is an "allowed" extension -- either empty or one
of the extensions accepted by IS_RBEXT, IS_SOEXT, or
IS_DLEXT. Further, if `ext && rb` then `IS_RBEXT(e)`,
and if `ext && !rb` then `IS_SOEXT(e) || IS_DLEXT(e)`.
If `expanded`, then only the latter form (without load_path[j])
is accepted. Otherwise either form is accepted, *unless* `ext`
is false and an otherwise-matching entry of the first form is
preceded by an entry of the form
"#{features[i2]}" == "#{load_path[j2]}/#{feature}#{e2}"
where `e2` matches %r{^\.[^./]*$} but is not an allowed extension.
After a "distractor" entry of this form, only entries of the
form "#{feature}#{e}" are accepted.
In `rb_provide_feature()` and `get_loaded_features_index()` we
maintain an invariant that the array `this_feature_index` will
point to every entry in `features` which has the form
"#{prefix}#{feature}#{e}"
where `e` is empty or matches %r{^\.[^./]*$}, and `prefix` is empty
or ends in '/'. This includes both match forms above, as well
as any distractors, so we may ignore all other entries in `features`.
*/
if (!NIL_P(this_feature_index)) {
for (i = 0; ; i++) {
VALUE entry;
long index;
if (RB_TYPE_P(this_feature_index, T_ARRAY)) {
if (i >= RARRAY_LEN(this_feature_index)) break;
entry = RARRAY_AREF(this_feature_index, i);
}
else {
if (i > 0) break;
entry = this_feature_index;
}
index = FIX2LONG(entry);
v = RARRAY_AREF(features, index);
f = StringValuePtr(v);
if ((n = RSTRING_LEN(v)) < len) continue;
if (strncmp(f, feature, len) != 0) {
if (expanded) continue;
if (!load_path) load_path = rb_get_expanded_load_path();
if (!(p = loaded_feature_path(f, n, feature, len, type, load_path)))
continue;
expanded = 1;
f += RSTRING_LEN(p) + 1;
}
if (!*(e = f + len)) {
if (ext) continue;
return 'u';
}
if (*e != '.') continue;
if ((!rb || !ext) && (IS_SOEXT(e) || IS_DLEXT(e))) {
return 's';
}
if ((rb || !ext) && (IS_RBEXT(e))) {
return 'r';
}
}
}
loading_tbl = get_loading_table();
if (loading_tbl) {
f = 0;
if (!expanded) {
struct loaded_feature_searching fs;
fs.name = feature;
fs.len = len;
fs.type = type;
fs.load_path = load_path ? load_path : rb_get_expanded_load_path();
fs.result = 0;
st_foreach(loading_tbl, loaded_feature_path_i, (st_data_t)&fs);
if ((f = fs.result) != 0) {
if (fn) *fn = f;
goto loading;
}
}
if (st_get_key(loading_tbl, (st_data_t)feature, &data)) {
if (fn) *fn = (const char*)data;
loading:
if (!ext) return 'u';
return !IS_RBEXT(ext) ? 's' : 'r';
}
else {
VALUE bufstr;
char *buf;
static const char so_ext[][4] = {
".so", ".o",
};
if (ext && *ext) return 0;
bufstr = rb_str_tmp_new(len + DLEXT_MAXLEN);
buf = RSTRING_PTR(bufstr);
MEMCPY(buf, feature, char, len);
for (i = 0; (e = loadable_ext[i]) != 0; i++) {
strlcpy(buf + len, e, DLEXT_MAXLEN + 1);
if (st_get_key(loading_tbl, (st_data_t)buf, &data)) {
rb_str_resize(bufstr, 0);
if (fn) *fn = (const char*)data;
return i ? 's' : 'r';
}
}
for (i = 0; i < numberof(so_ext); i++) {
strlcpy(buf + len, so_ext[i], DLEXT_MAXLEN + 1);
if (st_get_key(loading_tbl, (st_data_t)buf, &data)) {
rb_str_resize(bufstr, 0);
if (fn) *fn = (const char*)data;
return 's';
}
}
rb_str_resize(bufstr, 0);
}
}
return 0;
}
VALUE
rb_str_format(int argc, const VALUE *argv, VALUE fmt)
{
enum {default_float_precision = 6};
rb_encoding *enc;
const char *p, *end;
char *buf;
long blen, bsiz;
VALUE result;
long scanned = 0;
int coderange = ENC_CODERANGE_7BIT;
int width, prec, flags = FNONE;
int nextarg = 1;
int posarg = 0;
int tainted = 0;
VALUE nextvalue;
VALUE tmp;
VALUE str;
volatile VALUE hash = Qundef;
#define CHECK_FOR_WIDTH(f) \
if ((f) & FWIDTH) { \
rb_raise(rb_eArgError, "width given twice"); \
} \
if ((f) & FPREC0) { \
rb_raise(rb_eArgError, "width after precision"); \
}
#define CHECK_FOR_FLAGS(f) \
if ((f) & FWIDTH) { \
rb_raise(rb_eArgError, "flag after width"); \
} \
if ((f) & FPREC0) { \
rb_raise(rb_eArgError, "flag after precision"); \
}
++argc;
--argv;
if (OBJ_TAINTED(fmt)) tainted = 1;
StringValue(fmt);
enc = rb_enc_get(fmt);
fmt = rb_str_new4(fmt);
p = RSTRING_PTR(fmt);
end = p + RSTRING_LEN(fmt);
blen = 0;
bsiz = 120;
result = rb_str_buf_new(bsiz);
rb_enc_copy(result, fmt);
buf = RSTRING_PTR(result);
memset(buf, 0, bsiz);
ENC_CODERANGE_SET(result, coderange);
for (; p < end; p++) {
const char *t;
int n;
VALUE sym = Qnil;
for (t = p; t < end && *t != '%'; t++) ;
PUSH(p, t - p);
if (coderange != ENC_CODERANGE_BROKEN && scanned < blen) {
scanned += rb_str_coderange_scan_restartable(buf+scanned, buf+blen, enc, &coderange);
ENC_CODERANGE_SET(result, coderange);
}
if (t >= end) {
/* end of fmt string */
goto sprint_exit;
}
p = t + 1; /* skip `%' */
width = prec = -1;
nextvalue = Qundef;
retry:
switch (*p) {
default:
if (rb_enc_isprint(*p, enc))
rb_raise(rb_eArgError, "malformed format string - %%%c", *p);
else
rb_raise(rb_eArgError, "malformed format string");
break;
case ' ':
CHECK_FOR_FLAGS(flags);
flags |= FSPACE;
p++;
goto retry;
case '#':
CHECK_FOR_FLAGS(flags);
flags |= FSHARP;
p++;
goto retry;
case '+':
CHECK_FOR_FLAGS(flags);
flags |= FPLUS;
p++;
goto retry;
case '-':
CHECK_FOR_FLAGS(flags);
flags |= FMINUS;
p++;
goto retry;
case '0':
CHECK_FOR_FLAGS(flags);
flags |= FZERO;
p++;
goto retry;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
n = 0;
GETNUM(n, width);
if (*p == '$') {
if (nextvalue != Qundef) {
rb_raise(rb_eArgError, "value given twice - %d$", n);
}
nextvalue = GETPOSARG(n);
p++;
goto retry;
}
CHECK_FOR_WIDTH(flags);
width = n;
flags |= FWIDTH;
goto retry;
case '<':
case '{':
{
const char *start = p;
char term = (*p == '<') ? '>' : '}';
int len;
for (; p < end && *p != term; ) {
p += rb_enc_mbclen(p, end, enc);
}
if (p >= end) {
rb_raise(rb_eArgError, "malformed name - unmatched parenthesis");
}
#if SIZEOF_INT < SIZEOF_SIZE_T
if ((size_t)(p - start) >= INT_MAX) {
const int message_limit = 20;
len = (int)(rb_enc_right_char_head(start, start + message_limit, p, enc) - start);
rb_enc_raise(enc, rb_eArgError,
"too long name (%"PRIdSIZE" bytes) - %.*s...%c",
(size_t)(p - start - 2), len, start, term);
}
#endif
len = (int)(p - start + 1); /* including parenthesis */
if (sym != Qnil) {
rb_enc_raise(enc, rb_eArgError, "named%.*s after <%"PRIsVALUE">",
len, start, rb_sym2str(sym));
}
CHECKNAMEARG(start, len, enc);
get_hash(&hash, argc, argv);
sym = rb_check_symbol_cstr(start + 1,
len - 2 /* without parenthesis */,
enc);
if (!NIL_P(sym)) nextvalue = rb_hash_lookup2(hash, sym, Qundef);
if (nextvalue == Qundef) {
if (NIL_P(sym)) {
sym = rb_sym_intern(start + 1,
len - 2 /* without parenthesis */,
enc);
}
nextvalue = rb_hash_default_value(hash, sym);
if (NIL_P(nextvalue)) {
rb_enc_raise(enc, rb_eKeyError, "key%.*s not found", len, start);
}
}
if (term == '}') goto format_s;
p++;
goto retry;
}
case '*':
CHECK_FOR_WIDTH(flags);
flags |= FWIDTH;
GETASTER(width);
if (width < 0) {
flags |= FMINUS;
width = -width;
}
p++;
goto retry;
case '.':
if (flags & FPREC0) {
rb_raise(rb_eArgError, "precision given twice");
}
flags |= FPREC|FPREC0;
prec = 0;
p++;
if (*p == '*') {
GETASTER(prec);
if (prec < 0) { /* ignore negative precision */
flags &= ~FPREC;
}
p++;
goto retry;
}
GETNUM(prec, precision);
goto retry;
case '\n':
case '\0':
p--;
case '%':
if (flags != FNONE) {
rb_raise(rb_eArgError, "invalid format character - %%");
}
PUSH("%", 1);
break;
case 'c':
{
VALUE val = GETARG();
VALUE tmp;
unsigned int c;
int n;
tmp = rb_check_string_type(val);
if (!NIL_P(tmp)) {
if (rb_enc_strlen(RSTRING_PTR(tmp),RSTRING_END(tmp),enc) != 1) {
rb_raise(rb_eArgError, "%%c requires a character");
}
c = rb_enc_codepoint_len(RSTRING_PTR(tmp), RSTRING_END(tmp), &n, enc);
RB_GC_GUARD(tmp);
}
else {
c = NUM2INT(val);
n = rb_enc_codelen(c, enc);
}
if (n <= 0) {
rb_raise(rb_eArgError, "invalid character");
}
if (!(flags & FWIDTH)) {
CHECK(n);
rb_enc_mbcput(c, &buf[blen], enc);
blen += n;
}
else if ((flags & FMINUS)) {
CHECK(n);
rb_enc_mbcput(c, &buf[blen], enc);
blen += n;
if (width > 1) FILL(' ', width-1);
}
else {
if (width > 1) FILL(' ', width-1);
CHECK(n);
rb_enc_mbcput(c, &buf[blen], enc);
blen += n;
}
}
break;
case 's':
case 'p':
format_s:
{
VALUE arg = GETARG();
long len, slen;
if (*p == 'p') {
str = rb_inspect(arg);
}
else {
str = rb_obj_as_string(arg);
}
if (OBJ_TAINTED(str)) tainted = 1;
len = RSTRING_LEN(str);
rb_str_set_len(result, blen);
if (coderange != ENC_CODERANGE_BROKEN && scanned < blen) {
int cr = coderange;
scanned += rb_str_coderange_scan_restartable(buf+scanned, buf+blen, enc, &cr);
ENC_CODERANGE_SET(result,
(cr == ENC_CODERANGE_UNKNOWN ?
ENC_CODERANGE_BROKEN : (coderange = cr)));
}
enc = rb_enc_check(result, str);
if (flags&(FPREC|FWIDTH)) {
slen = rb_enc_strlen(RSTRING_PTR(str),RSTRING_END(str),enc);
if (slen < 0) {
rb_raise(rb_eArgError, "invalid mbstring sequence");
}
if ((flags&FPREC) && (prec < slen)) {
char *p = rb_enc_nth(RSTRING_PTR(str), RSTRING_END(str),
prec, enc);
slen = prec;
len = p - RSTRING_PTR(str);
}
/* need to adjust multi-byte string pos */
if ((flags&FWIDTH) && (width > slen)) {
width -= (int)slen;
if (!(flags&FMINUS)) {
CHECK(width);
while (width--) {
buf[blen++] = ' ';
}
}
CHECK(len);
memcpy(&buf[blen], RSTRING_PTR(str), len);
RB_GC_GUARD(str);
blen += len;
if (flags&FMINUS) {
CHECK(width);
while (width--) {
buf[blen++] = ' ';
}
}
rb_enc_associate(result, enc);
break;
}
}
PUSH(RSTRING_PTR(str), len);
RB_GC_GUARD(str);
rb_enc_associate(result, enc);
}
break;
case 'd':
case 'i':
case 'o':
case 'x':
case 'X':
case 'b':
case 'B':
case 'u':
{
volatile VALUE val = GETARG();
int valsign;
char nbuf[64], *s;
const char *prefix = 0;
int sign = 0, dots = 0;
char sc = 0;
long v = 0;
int base, bignum = 0;
int len;
switch (*p) {
case 'd':
case 'i':
case 'u':
sign = 1; break;
case 'o':
case 'x':
case 'X':
case 'b':
case 'B':
if (flags&(FPLUS|FSPACE)) sign = 1;
break;
}
if (flags & FSHARP) {
switch (*p) {
case 'o':
prefix = "0"; break;
case 'x':
prefix = "0x"; break;
case 'X':
prefix = "0X"; break;
case 'b':
prefix = "0b"; break;
case 'B':
prefix = "0B"; break;
}
}
bin_retry:
switch (TYPE(val)) {
case T_FLOAT:
if (FIXABLE(RFLOAT_VALUE(val))) {
val = LONG2FIX((long)RFLOAT_VALUE(val));
goto bin_retry;
}
val = rb_dbl2big(RFLOAT_VALUE(val));
if (FIXNUM_P(val)) goto bin_retry;
bignum = 1;
break;
case T_STRING:
val = rb_str_to_inum(val, 0, TRUE);
goto bin_retry;
case T_BIGNUM:
bignum = 1;
break;
case T_FIXNUM:
v = FIX2LONG(val);
break;
default:
val = rb_Integer(val);
goto bin_retry;
}
switch (*p) {
case 'o':
base = 8; break;
case 'x':
case 'X':
base = 16; break;
case 'b':
case 'B':
base = 2; break;
case 'u':
case 'd':
case 'i':
default:
base = 10; break;
}
if (base != 10) {
int numbits = ffs(base)-1;
size_t abs_nlz_bits;
size_t numdigits = rb_absint_numwords(val, numbits, &abs_nlz_bits);
long i;
if (INT_MAX-1 < numdigits) /* INT_MAX is used because rb_long2int is used later. */
rb_raise(rb_eArgError, "size too big");
if (sign) {
if (numdigits == 0)
numdigits = 1;
tmp = rb_str_new(NULL, numdigits);
valsign = rb_integer_pack(val, RSTRING_PTR(tmp), RSTRING_LEN(tmp),
1, CHAR_BIT-numbits, INTEGER_PACK_BIG_ENDIAN);
for (i = 0; i < RSTRING_LEN(tmp); i++)
RSTRING_PTR(tmp)[i] = ruby_digitmap[((unsigned char *)RSTRING_PTR(tmp))[i]];
s = RSTRING_PTR(tmp);
if (valsign < 0) {
sc = '-';
width--;
}
else if (flags & FPLUS) {
sc = '+';
width--;
}
else if (flags & FSPACE) {
sc = ' ';
width--;
}
}
else {
/* Following conditional "numdigits++" guarantees the
* most significant digit as
* - '1'(bin), '7'(oct) or 'f'(hex) for negative numbers
* - '0' for zero
* - not '0' for positive numbers.
*
* It also guarantees the most significant two
* digits will not be '11'(bin), '77'(oct), 'ff'(hex)
* or '00'. */
if (numdigits == 0 ||
((abs_nlz_bits != (size_t)(numbits-1) ||
!rb_absint_singlebit_p(val)) &&
(!bignum ? v < 0 : BIGNUM_NEGATIVE_P(val))))
numdigits++;
tmp = rb_str_new(NULL, numdigits);
valsign = rb_integer_pack(val, RSTRING_PTR(tmp), RSTRING_LEN(tmp),
1, CHAR_BIT-numbits, INTEGER_PACK_2COMP | INTEGER_PACK_BIG_ENDIAN);
for (i = 0; i < RSTRING_LEN(tmp); i++)
RSTRING_PTR(tmp)[i] = ruby_digitmap[((unsigned char *)RSTRING_PTR(tmp))[i]];
s = RSTRING_PTR(tmp);
dots = valsign < 0;
}
len = rb_long2int(RSTRING_END(tmp) - s);
}
else if (!bignum) {
valsign = 1;
if (v < 0) {
v = -v;
sc = '-';
width--;
valsign = -1;
}
else if (flags & FPLUS) {
sc = '+';
width--;
}
else if (flags & FSPACE) {
sc = ' ';
width--;
}
snprintf(nbuf, sizeof(nbuf), "%ld", v);
s = nbuf;
len = (int)strlen(s);
}
else {
tmp = rb_big2str(val, 10);
s = RSTRING_PTR(tmp);
valsign = 1;
if (s[0] == '-') {
s++;
sc = '-';
width--;
valsign = -1;
}
else if (flags & FPLUS) {
sc = '+';
width--;
}
else if (flags & FSPACE) {
sc = ' ';
width--;
}
len = rb_long2int(RSTRING_END(tmp) - s);
}
if (dots) {
prec -= 2;
width -= 2;
}
if (*p == 'X') {
char *pp = s;
int c;
while ((c = (int)(unsigned char)*pp) != 0) {
*pp = rb_enc_toupper(c, enc);
pp++;
}
}
if (prefix && !prefix[1]) { /* octal */
if (dots) {
prefix = 0;
}
else if (len == 1 && *s == '0') {
len = 0;
if (flags & FPREC) prec--;
}
else if ((flags & FPREC) && (prec > len)) {
prefix = 0;
}
}
else if (len == 1 && *s == '0') {
prefix = 0;
}
if (prefix) {
width -= (int)strlen(prefix);
}
if ((flags & (FZERO|FMINUS|FPREC)) == FZERO) {
prec = width;
width = 0;
}
else {
if (prec < len) {
if (!prefix && prec == 0 && len == 1 && *s == '0') len = 0;
prec = len;
}
width -= prec;
}
if (!(flags&FMINUS)) {
CHECK(width);
while (width-- > 0) {
buf[blen++] = ' ';
}
}
if (sc) PUSH(&sc, 1);
if (prefix) {
int plen = (int)strlen(prefix);
PUSH(prefix, plen);
}
CHECK(prec - len);
if (dots) PUSH("..", 2);
if (!sign && valsign < 0) {
char c = sign_bits(base, p);
while (len < prec--) {
buf[blen++] = c;
}
}
else if ((flags & (FMINUS|FPREC)) != FMINUS) {
while (len < prec--) {
buf[blen++] = '0';
}
}
PUSH(s, len);
RB_GC_GUARD(tmp);
CHECK(width);
while (width-- > 0) {
buf[blen++] = ' ';
}
}
break;
case 'f':
{
VALUE val = GETARG(), num, den;
int sign = (flags&FPLUS) ? 1 : 0, zero = 0;
long len, done = 0;
int prefix = 0;
if (FIXNUM_P(val) || RB_TYPE_P(val, T_BIGNUM)) {
den = INT2FIX(1);
num = val;
}
else if (RB_TYPE_P(val, T_RATIONAL)) {
den = rb_rational_den(val);
num = rb_rational_num(val);
}
else {
nextvalue = val;
goto float_value;
}
if (!(flags&FPREC)) prec = default_float_precision;
if (FIXNUM_P(num)) {
if ((SIGNED_VALUE)num < 0) {
long n = -FIX2LONG(num);
num = LONG2FIX(n);
sign = -1;
}
}
else if (rb_num_negative_p(num)) {
sign = -1;
num = rb_funcallv(num, idUMinus, 0, 0);
}
if (den != INT2FIX(1) || prec > 1) {
const ID idDiv = rb_intern("div");
VALUE p10 = rb_int_positive_pow(10, prec);
VALUE den_2 = rb_funcall(den, idDiv, 1, INT2FIX(2));
num = rb_funcallv(num, '*', 1, &p10);
num = rb_funcallv(num, '+', 1, &den_2);
num = rb_funcallv(num, idDiv, 1, &den);
}
else if (prec >= 0) {
zero = prec;
}
val = rb_obj_as_string(num);
len = RSTRING_LEN(val) + zero;
if (prec >= len) len = prec + 1; /* integer part 0 */
if (sign || (flags&FSPACE)) ++len;
if (prec > 0) ++len; /* period */
CHECK(len > width ? len : width);
if (sign || (flags&FSPACE)) {
buf[blen++] = sign > 0 ? '+' : sign < 0 ? '-' : ' ';
prefix++;
done++;
}
len = RSTRING_LEN(val) + zero;
t = RSTRING_PTR(val);
if (len > prec) {
memcpy(&buf[blen], t, len - prec);
blen += len - prec;
done += len - prec;
}
else {
buf[blen++] = '0';
done++;
}
if (prec > 0) {
buf[blen++] = '.';
done++;
}
if (zero) {
FILL('0', zero);
done += zero;
}
else if (prec > len) {
FILL('0', prec - len);
memcpy(&buf[blen], t, len);
blen += len;
done += prec;
}
else if (prec > 0) {
memcpy(&buf[blen], t + len - prec, prec);
blen += prec;
done += prec;
}
if ((flags & FWIDTH) && width > done) {
int fill = ' ';
long shifting = 0;
if (!(flags&FMINUS)) {
shifting = done;
if (flags&FZERO) {
shifting -= prefix;
fill = '0';
}
blen -= shifting;
memmove(&buf[blen + width - done], &buf[blen], shifting);
}
FILL(fill, width - done);
blen += shifting;
}
RB_GC_GUARD(val);
break;
}
case 'g':
case 'G':
case 'e':
case 'E':
/* TODO: rational support */
case 'a':
case 'A':
float_value:
{
VALUE val = GETARG();
double fval;
int i, need;
char fbuf[32];
fval = RFLOAT_VALUE(rb_Float(val));
if (isnan(fval) || isinf(fval)) {
const char *expr;
if (isnan(fval)) {
expr = "NaN";
}
else {
expr = "Inf";
}
need = (int)strlen(expr);
if ((!isnan(fval) && fval < 0.0) || (flags & FPLUS))
need++;
if ((flags & FWIDTH) && need < width)
need = width;
CHECK(need + 1);
snprintf(&buf[blen], need + 1, "%*s", need, "");
if (flags & FMINUS) {
if (!isnan(fval) && fval < 0.0)
buf[blen++] = '-';
else if (flags & FPLUS)
buf[blen++] = '+';
else if (flags & FSPACE)
blen++;
memcpy(&buf[blen], expr, strlen(expr));
}
else {
if (!isnan(fval) && fval < 0.0)
buf[blen + need - strlen(expr) - 1] = '-';
else if (flags & FPLUS)
buf[blen + need - strlen(expr) - 1] = '+';
else if ((flags & FSPACE) && need > width)
blen++;
memcpy(&buf[blen + need - strlen(expr)], expr,
strlen(expr));
}
blen += strlen(&buf[blen]);
break;
}
fmt_setup(fbuf, sizeof(fbuf), *p, flags, width, prec);
need = 0;
if (*p != 'e' && *p != 'E') {
i = INT_MIN;
frexp(fval, &i);
if (i > 0)
need = BIT_DIGITS(i);
}
need += (flags&FPREC) ? prec : default_float_precision;
if ((flags&FWIDTH) && need < width)
need = width;
need += 20;
CHECK(need);
snprintf(&buf[blen], need, fbuf, fval);
blen += strlen(&buf[blen]);
}
break;
}
flags = FNONE;
}
sprint_exit:
RB_GC_GUARD(fmt);
/* XXX - We cannot validate the number of arguments if (digit)$ style used.
*/
if (posarg >= 0 && nextarg < argc) {
const char *mesg = "too many arguments for format string";
if (RTEST(ruby_debug)) rb_raise(rb_eArgError, "%s", mesg);
if (RTEST(ruby_verbose)) rb_warn("%s", mesg);
}
rb_str_resize(result, blen);
if (tainted) OBJ_TAINT(result);
return result;
}
VALUE
rb_str_format(int argc, const VALUE *argv, VALUE fmt)
{
rb_encoding *enc;
const char *p, *end;
char *buf;
long blen, bsiz;
VALUE result;
long scanned = 0;
int coderange = ENC_CODERANGE_7BIT;
int width, prec, flags = FNONE;
int nextarg = 1;
int posarg = 0;
int tainted = 0;
VALUE nextvalue;
VALUE tmp;
VALUE str;
volatile VALUE hash = Qundef;
#define CHECK_FOR_WIDTH(f) \
if ((f) & FWIDTH) { \
rb_raise(rb_eArgError, "width given twice"); \
} \
if ((f) & FPREC0) { \
rb_raise(rb_eArgError, "width after precision"); \
}
#define CHECK_FOR_FLAGS(f) \
if ((f) & FWIDTH) { \
rb_raise(rb_eArgError, "flag after width"); \
} \
if ((f) & FPREC0) { \
rb_raise(rb_eArgError, "flag after precision"); \
}
++argc;
--argv;
if (OBJ_TAINTED(fmt)) tainted = 1;
StringValue(fmt);
enc = rb_enc_get(fmt);
fmt = rb_str_new4(fmt);
p = RSTRING_PTR(fmt);
end = p + RSTRING_LEN(fmt);
blen = 0;
bsiz = 120;
result = rb_str_buf_new(bsiz);
rb_enc_copy(result, fmt);
buf = RSTRING_PTR(result);
memset(buf, 0, bsiz);
ENC_CODERANGE_SET(result, coderange);
for (; p < end; p++) {
const char *t;
int n;
ID id = 0;
for (t = p; t < end && *t != '%'; t++) ;
PUSH(p, t - p);
if (coderange != ENC_CODERANGE_BROKEN && scanned < blen) {
scanned += rb_str_coderange_scan_restartable(buf+scanned, buf+blen, enc, &coderange);
ENC_CODERANGE_SET(result, coderange);
}
if (t >= end) {
/* end of fmt string */
goto sprint_exit;
}
p = t + 1; /* skip `%' */
width = prec = -1;
nextvalue = Qundef;
retry:
switch (*p) {
default:
if (rb_enc_isprint(*p, enc))
rb_raise(rb_eArgError, "malformed format string - %%%c", *p);
else
rb_raise(rb_eArgError, "malformed format string");
break;
case ' ':
CHECK_FOR_FLAGS(flags);
flags |= FSPACE;
p++;
goto retry;
case '#':
CHECK_FOR_FLAGS(flags);
flags |= FSHARP;
p++;
goto retry;
case '+':
CHECK_FOR_FLAGS(flags);
flags |= FPLUS;
p++;
goto retry;
case '-':
CHECK_FOR_FLAGS(flags);
flags |= FMINUS;
p++;
goto retry;
case '0':
CHECK_FOR_FLAGS(flags);
flags |= FZERO;
p++;
goto retry;
case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
n = 0;
GETNUM(n, width);
if (*p == '$') {
if (nextvalue != Qundef) {
rb_raise(rb_eArgError, "value given twice - %d$", n);
}
nextvalue = GETPOSARG(n);
p++;
goto retry;
}
CHECK_FOR_WIDTH(flags);
width = n;
flags |= FWIDTH;
goto retry;
case '<':
case '{':
{
const char *start = p;
char term = (*p == '<') ? '>' : '}';
int len;
for (; p < end && *p != term; ) {
p += rb_enc_mbclen(p, end, enc);
}
if (p >= end) {
rb_raise(rb_eArgError, "malformed name - unmatched parenthesis");
}
#if SIZEOF_INT < SIZEOF_SIZE_T
if ((size_t)(p - start) >= INT_MAX) {
const int message_limit = 20;
len = (int)(rb_enc_right_char_head(start, start + message_limit, p, enc) - start);
rb_enc_raise(enc, rb_eArgError,
"too long name (%"PRIdSIZE" bytes) - %.*s...%c",
(size_t)(p - start - 2), len, start, term);
}
#endif
len = (int)(p - start + 1); /* including parenthesis */
if (id) {
rb_enc_raise(enc, rb_eArgError, "named%.*s after <%s>",
len, start, rb_id2name(id));
}
nextvalue = GETNAMEARG((id = rb_check_id_cstr(start + 1,
len - 2 /* without parenthesis */,
enc),
ID2SYM(id)),
start, len, enc);
if (nextvalue == Qundef) {
rb_enc_raise(enc, rb_eKeyError, "key%.*s not found", len, start);
}
if (term == '}') goto format_s;
p++;
goto retry;
}
case '*':
CHECK_FOR_WIDTH(flags);
flags |= FWIDTH;
GETASTER(width);
if (width < 0) {
flags |= FMINUS;
width = -width;
}
p++;
goto retry;
case '.':
if (flags & FPREC0) {
rb_raise(rb_eArgError, "precision given twice");
}
flags |= FPREC|FPREC0;
prec = 0;
p++;
if (*p == '*') {
GETASTER(prec);
if (prec < 0) { /* ignore negative precision */
flags &= ~FPREC;
}
p++;
goto retry;
}
GETNUM(prec, precision);
goto retry;
case '\n':
case '\0':
p--;
case '%':
if (flags != FNONE) {
rb_raise(rb_eArgError, "invalid format character - %%");
}
PUSH("%", 1);
break;
case 'c':
{
VALUE val = GETARG();
VALUE tmp;
unsigned int c;
int n;
tmp = rb_check_string_type(val);
if (!NIL_P(tmp)) {
if (rb_enc_strlen(RSTRING_PTR(tmp),RSTRING_END(tmp),enc) != 1) {
rb_raise(rb_eArgError, "%%c requires a character");
}
c = rb_enc_codepoint_len(RSTRING_PTR(tmp), RSTRING_END(tmp), &n, enc);
RB_GC_GUARD(tmp);
}
else {
c = NUM2INT(val);
n = rb_enc_codelen(c, enc);
}
if (n <= 0) {
rb_raise(rb_eArgError, "invalid character");
}
if (!(flags & FWIDTH)) {
CHECK(n);
rb_enc_mbcput(c, &buf[blen], enc);
blen += n;
}
else if ((flags & FMINUS)) {
CHECK(n);
rb_enc_mbcput(c, &buf[blen], enc);
blen += n;
FILL(' ', width-1);
}
else {
FILL(' ', width-1);
CHECK(n);
rb_enc_mbcput(c, &buf[blen], enc);
blen += n;
}
}
break;
case 's':
case 'p':
format_s:
{
VALUE arg = GETARG();
long len, slen;
if (*p == 'p') arg = rb_inspect(arg);
str = rb_obj_as_string(arg);
if (OBJ_TAINTED(str)) tainted = 1;
len = RSTRING_LEN(str);
rb_str_set_len(result, blen);
if (coderange != ENC_CODERANGE_BROKEN && scanned < blen) {
int cr = coderange;
scanned += rb_str_coderange_scan_restartable(buf+scanned, buf+blen, enc, &cr);
ENC_CODERANGE_SET(result,
(cr == ENC_CODERANGE_UNKNOWN ?
ENC_CODERANGE_BROKEN : (coderange = cr)));
}
enc = rb_enc_check(result, str);
if (flags&(FPREC|FWIDTH)) {
slen = rb_enc_strlen(RSTRING_PTR(str),RSTRING_END(str),enc);
if (slen < 0) {
rb_raise(rb_eArgError, "invalid mbstring sequence");
}
if ((flags&FPREC) && (prec < slen)) {
char *p = rb_enc_nth(RSTRING_PTR(str), RSTRING_END(str),
prec, enc);
slen = prec;
len = p - RSTRING_PTR(str);
}
/* need to adjust multi-byte string pos */
if ((flags&FWIDTH) && (width > slen)) {
width -= (int)slen;
if (!(flags&FMINUS)) {
CHECK(width);
while (width--) {
buf[blen++] = ' ';
}
}
CHECK(len);
memcpy(&buf[blen], RSTRING_PTR(str), len);
RB_GC_GUARD(str);
blen += len;
if (flags&FMINUS) {
CHECK(width);
while (width--) {
buf[blen++] = ' ';
}
}
rb_enc_associate(result, enc);
break;
}
}
PUSH(RSTRING_PTR(str), len);
RB_GC_GUARD(str);
rb_enc_associate(result, enc);
}
break;
case 'd':
case 'i':
case 'o':
case 'x':
case 'X':
case 'b':
case 'B':
case 'u':
{
volatile VALUE val = GETARG();
char fbuf[32], nbuf[64], *s;
const char *prefix = 0;
int sign = 0, dots = 0;
char sc = 0;
long v = 0;
int base, bignum = 0;
int len;
switch (*p) {
case 'd':
case 'i':
case 'u':
sign = 1; break;
case 'o':
case 'x':
case 'X':
case 'b':
case 'B':
if (flags&(FPLUS|FSPACE)) sign = 1;
break;
}
if (flags & FSHARP) {
switch (*p) {
case 'o':
prefix = "0"; break;
case 'x':
prefix = "0x"; break;
case 'X':
prefix = "0X"; break;
case 'b':
prefix = "0b"; break;
case 'B':
prefix = "0B"; break;
}
}
bin_retry:
switch (TYPE(val)) {
case T_FLOAT:
if (FIXABLE(RFLOAT_VALUE(val))) {
val = LONG2FIX((long)RFLOAT_VALUE(val));
goto bin_retry;
}
val = rb_dbl2big(RFLOAT_VALUE(val));
if (FIXNUM_P(val)) goto bin_retry;
bignum = 1;
break;
case T_STRING:
val = rb_str_to_inum(val, 0, TRUE);
goto bin_retry;
case T_BIGNUM:
bignum = 1;
break;
case T_FIXNUM:
v = FIX2LONG(val);
break;
default:
val = rb_Integer(val);
goto bin_retry;
}
switch (*p) {
case 'o':
base = 8; break;
case 'x':
case 'X':
base = 16; break;
case 'b':
case 'B':
base = 2; break;
case 'u':
case 'd':
case 'i':
default:
base = 10; break;
}
if (!bignum) {
if (base == 2) {
val = rb_int2big(v);
goto bin_retry;
}
if (sign) {
char c = *p;
if (c == 'i') c = 'd'; /* %d and %i are identical */
if (v < 0) {
v = -v;
sc = '-';
width--;
}
else if (flags & FPLUS) {
sc = '+';
width--;
}
else if (flags & FSPACE) {
sc = ' ';
width--;
}
snprintf(fbuf, sizeof(fbuf), "%%l%c", c);
snprintf(nbuf, sizeof(nbuf), fbuf, v);
s = nbuf;
}
else {
s = nbuf;
if (v < 0) {
dots = 1;
}
snprintf(fbuf, sizeof(fbuf), "%%l%c", *p == 'X' ? 'x' : *p);
snprintf(++s, sizeof(nbuf) - 1, fbuf, v);
if (v < 0) {
char d = 0;
s = remove_sign_bits(s, base);
switch (base) {
case 16:
d = 'f'; break;
case 8:
d = '7'; break;
}
if (d && *s != d) {
*--s = d;
}
}
}
len = (int)strlen(s);
}
else {
if (sign) {
tmp = rb_big2str(val, base);
s = RSTRING_PTR(tmp);
if (s[0] == '-') {
s++;
sc = '-';
width--;
}
else if (flags & FPLUS) {
sc = '+';
width--;
}
else if (flags & FSPACE) {
sc = ' ';
width--;
}
}
else {
if (!RBIGNUM_SIGN(val)) {
val = rb_big_clone(val);
rb_big_2comp(val);
}
tmp = rb_big2str0(val, base, RBIGNUM_SIGN(val));
s = RSTRING_PTR(tmp);
if (*s == '-') {
dots = 1;
if (base == 10) {
rb_warning("negative number for %%u specifier");
}
s = remove_sign_bits(++s, base);
switch (base) {
case 16:
if (s[0] != 'f') *--s = 'f'; break;
case 8:
if (s[0] != '7') *--s = '7'; break;
case 2:
if (s[0] != '1') *--s = '1'; break;
}
}
}
len = rb_long2int(RSTRING_END(tmp) - s);
}
if (dots) {
prec -= 2;
width -= 2;
}
if (*p == 'X') {
char *pp = s;
int c;
while ((c = (int)(unsigned char)*pp) != 0) {
*pp = rb_enc_toupper(c, enc);
pp++;
}
}
if (prefix && !prefix[1]) { /* octal */
if (dots) {
prefix = 0;
}
else if (len == 1 && *s == '0') {
len = 0;
if (flags & FPREC) prec--;
}
else if ((flags & FPREC) && (prec > len)) {
prefix = 0;
}
}
else if (len == 1 && *s == '0') {
prefix = 0;
}
if (prefix) {
width -= (int)strlen(prefix);
}
if ((flags & (FZERO|FMINUS|FPREC)) == FZERO) {
prec = width;
width = 0;
}
else {
if (prec < len) {
if (!prefix && prec == 0 && len == 1 && *s == '0') len = 0;
prec = len;
}
width -= prec;
}
if (!(flags&FMINUS)) {
CHECK(width);
while (width-- > 0) {
buf[blen++] = ' ';
}
}
if (sc) PUSH(&sc, 1);
if (prefix) {
int plen = (int)strlen(prefix);
PUSH(prefix, plen);
}
CHECK(prec - len);
if (dots) PUSH("..", 2);
if (!bignum && v < 0) {
char c = sign_bits(base, p);
while (len < prec--) {
buf[blen++] = c;
}
}
else if ((flags & (FMINUS|FPREC)) != FMINUS) {
char c;
if (!sign && bignum && !RBIGNUM_SIGN(val))
c = sign_bits(base, p);
else
c = '0';
while (len < prec--) {
buf[blen++] = c;
}
}
PUSH(s, len);
RB_GC_GUARD(tmp);
CHECK(width);
while (width-- > 0) {
buf[blen++] = ' ';
}
}
break;
case 'f':
case 'g':
case 'G':
case 'e':
case 'E':
case 'a':
case 'A':
{
VALUE val = GETARG();
double fval;
int i, need = 6;
char fbuf[32];
fval = RFLOAT_VALUE(rb_Float(val));
if (isnan(fval) || isinf(fval)) {
const char *expr;
if (isnan(fval)) {
expr = "NaN";
}
else {
expr = "Inf";
}
need = (int)strlen(expr);
if ((!isnan(fval) && fval < 0.0) || (flags & FPLUS))
need++;
if ((flags & FWIDTH) && need < width)
need = width;
CHECK(need + 1);
snprintf(&buf[blen], need + 1, "%*s", need, "");
if (flags & FMINUS) {
if (!isnan(fval) && fval < 0.0)
buf[blen++] = '-';
else if (flags & FPLUS)
buf[blen++] = '+';
else if (flags & FSPACE)
blen++;
memcpy(&buf[blen], expr, strlen(expr));
}
else {
if (!isnan(fval) && fval < 0.0)
buf[blen + need - strlen(expr) - 1] = '-';
else if (flags & FPLUS)
buf[blen + need - strlen(expr) - 1] = '+';
else if ((flags & FSPACE) && need > width)
blen++;
memcpy(&buf[blen + need - strlen(expr)], expr,
strlen(expr));
}
blen += strlen(&buf[blen]);
break;
}
fmt_setup(fbuf, sizeof(fbuf), *p, flags, width, prec);
need = 0;
if (*p != 'e' && *p != 'E') {
i = INT_MIN;
frexp(fval, &i);
if (i > 0)
need = BIT_DIGITS(i);
}
need += (flags&FPREC) ? prec : 6;
if ((flags&FWIDTH) && need < width)
need = width;
need += 20;
CHECK(need);
snprintf(&buf[blen], need, fbuf, fval);
blen += strlen(&buf[blen]);
}
break;
}
flags = FNONE;
}
sprint_exit:
RB_GC_GUARD(fmt);
/* XXX - We cannot validate the number of arguments if (digit)$ style used.
*/
if (posarg >= 0 && nextarg < argc) {
const char *mesg = "too many arguments for format string";
if (RTEST(ruby_debug)) rb_raise(rb_eArgError, "%s", mesg);
if (RTEST(ruby_verbose)) rb_warn("%s", mesg);
}
rb_str_resize(result, blen);
if (tainted) OBJ_TAINT(result);
return result;
}
void
ruby_init_loadpath_safe(int safe_level)
{
VALUE load_path;
extern const char ruby_initial_load_paths[];
const char *paths = ruby_initial_load_paths;
#if defined LOAD_RELATIVE
# if defined HAVE_DLADDR || (defined __CYGWIN__ && defined CCP_WIN_A_TO_POSIX)
# define VARIABLE_LIBPATH 1
# else
# define VARIABLE_LIBPATH 0
# endif
# if VARIABLE_LIBPATH
char *libpath;
VALUE sopath;
# else
char libpath[MAXPATHLEN + 1];
size_t baselen;
# endif
char *p;
#if defined _WIN32 || defined __CYGWIN__
# if VARIABLE_LIBPATH
sopath = rb_str_tmp_new(MAXPATHLEN);
libpath = RSTRING_PTR(sopath);
GetModuleFileName(libruby, libpath, MAXPATHLEN);
# else
GetModuleFileName(libruby, libpath, sizeof libpath);
# endif
#elif defined(__EMX__)
_execname(libpath, sizeof(libpath) - 1);
#elif defined(HAVE_DLADDR)
Dl_info dli;
if (dladdr(expand_include_path, &dli)) {
VALUE fname = rb_str_new_cstr(dli.dli_fname);
sopath = rb_file_absolute_path(fname, Qnil);
rb_str_resize(fname, 0);
}
else {
sopath = rb_str_new(0, 0);
}
libpath = RSTRING_PTR(sopath);
#endif
#if !VARIABLE_LIBPATH
libpath[sizeof(libpath) - 1] = '\0';
#endif
#if defined DOSISH
translit_char(libpath, '\\', '/');
#elif defined __CYGWIN__
{
# if VARIABLE_LIBPATH
const int win_to_posix = CCP_WIN_A_TO_POSIX | CCP_RELATIVE;
size_t newsize = cygwin_conv_path(win_to_posix, libpath, 0, 0);
if (newsize > 0) {
VALUE rubylib = rb_str_tmp_new(newsize);
p = RSTRING_PTR(rubylib);
if (cygwin_conv_path(win_to_posix, libpath, p, newsize) == 0) {
rb_str_resize(sopath, 0);
sopath = rubylib;
libpath = p;
}
}
# else
char rubylib[FILENAME_MAX];
cygwin_conv_to_posix_path(libpath, rubylib);
strncpy(libpath, rubylib, sizeof(libpath));
# endif
}
#endif
p = strrchr(libpath, '/');
if (p) {
*p = 0;
if (p - libpath > 3 && !(STRCASECMP(p - 4, "/bin") && strcmp(p - 4, "/lib"))) {
p -= 4;
*p = 0;
}
}
#if !VARIABLE_LIBPATH
else {
strlcpy(libpath, ".", sizeof(libpath));
p = libpath + 1;
}
baselen = p - libpath;
#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
#else
rb_str_set_len(sopath, p - libpath);
#define BASEPATH() rb_str_dup(sopath)
#endif
#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), path, len)
#else
#define RUBY_RELATIVE(path, len) rubylib_mangled_path(path, len)
#endif
#define incpush(path) rb_ary_push(load_path, (path))
load_path = GET_VM()->load_path;
if (safe_level == 0) {
ruby_push_include(getenv("RUBYLIB"), identical_path);
}
while (*paths) {
size_t len = strlen(paths);
incpush(RUBY_RELATIVE(paths, len));
paths += len + 1;
}
}
VALUE string_spec_rb_str_resize_RSTRING_LEN(VALUE self, VALUE str, VALUE size) {
VALUE modified = rb_str_resize(str, FIX2INT(size));
return INT2FIX(RSTRING_LEN(modified));
}
VALUE string_spec_rb_str_resize(VALUE self, VALUE str, VALUE size) {
return rb_str_resize(str, FIX2INT(size));
}
static int
rb_feature_p(const char *feature, const char *ext, int rb, int expanded, const char **fn)
{
VALUE v, features, p, load_path = 0;
const char *f, *e;
long i, len, elen, n;
st_table *loading_tbl;
st_data_t data;
int type;
if (fn) *fn = 0;
if (ext) {
elen = strlen(ext);
len = strlen(feature) - elen;
type = rb ? 'r' : 's';
}
else {
len = strlen(feature);
elen = 0;
type = 0;
}
features = get_loaded_features();
for (i = 0; i < RARRAY_LEN(features); ++i) {
v = RARRAY_PTR(features)[i];
f = StringValuePtr(v);
if ((n = RSTRING_LEN(v)) < len) continue;
if (strncmp(f, feature, len) != 0) {
if (expanded) continue;
if (!load_path) load_path = rb_get_expanded_load_path();
if (!(p = loaded_feature_path(f, n, feature, len, type, load_path)))
continue;
expanded = 1;
f += RSTRING_LEN(p) + 1;
}
if (!*(e = f + len)) {
if (ext) continue;
return 'u';
}
if (*e != '.') continue;
if ((!rb || !ext) && (IS_SOEXT(e) || IS_DLEXT(e))) {
return 's';
}
if ((rb || !ext) && (IS_RBEXT(e))) {
return 'r';
}
}
loading_tbl = get_loading_table();
if (loading_tbl) {
f = 0;
if (!expanded) {
struct loaded_feature_searching fs;
fs.name = feature;
fs.len = len;
fs.type = type;
fs.load_path = load_path ? load_path : rb_get_load_path();
fs.result = 0;
st_foreach(loading_tbl, loaded_feature_path_i, (st_data_t)&fs);
if ((f = fs.result) != 0) {
if (fn) *fn = f;
goto loading;
}
}
if (st_get_key(loading_tbl, (st_data_t)feature, &data)) {
if (fn) *fn = (const char*)data;
loading:
if (!ext) return 'u';
return !IS_RBEXT(ext) ? 's' : 'r';
}
else {
VALUE bufstr;
char *buf;
if (ext && *ext) return 0;
bufstr = rb_str_tmp_new(len + DLEXT_MAXLEN);
buf = RSTRING_PTR(bufstr);
MEMCPY(buf, feature, char, len);
for (i = 0; (e = loadable_ext[i]) != 0; i++) {
strlcpy(buf + len, e, DLEXT_MAXLEN + 1);
if (st_get_key(loading_tbl, (st_data_t)buf, &data)) {
rb_str_resize(bufstr, 0);
if (fn) *fn = (const char*)data;
return i ? 's' : 'r';
}
}
rb_str_resize(bufstr, 0);
}
}
return 0;
}
void
ruby_init_loadpath_safe(int safe_level)
{
VALUE load_path;
ID id_initial_load_path_mark;
extern const char ruby_initial_load_paths[];
const char *paths = ruby_initial_load_paths;
#if defined LOAD_RELATIVE
# if defined HAVE_DLADDR || (defined __CYGWIN__ && defined CCP_WIN_A_TO_POSIX)
# define VARIABLE_LIBPATH 1
# else
# define VARIABLE_LIBPATH 0
# endif
# if VARIABLE_LIBPATH
char *libpath;
VALUE sopath;
# else
char libpath[MAXPATHLEN + 1];
# endif
size_t baselen;
char *p;
#if defined _WIN32 || defined __CYGWIN__
# if VARIABLE_LIBPATH
sopath = rb_str_new(0, MAXPATHLEN);
libpath = RSTRING_PTR(sopath);
GetModuleFileName(libruby, libpath, MAXPATHLEN);
# else
GetModuleFileName(libruby, libpath, sizeof libpath);
# endif
#elif defined(__EMX__)
_execname(libpath, sizeof(libpath) - 1);
#elif defined(HAVE_DLADDR)
Dl_info dli;
if (dladdr((void *)(VALUE)expand_include_path, &dli)) {
VALUE rb_realpath_internal(VALUE basedir, VALUE path, int strict);
char fbuf[MAXPATHLEN];
char *f = dln_find_file_r(dli.dli_fname, getenv(PATH_ENV), fbuf, sizeof(fbuf));
VALUE fname = rb_str_new_cstr(f);
rb_str_freeze(fname);
sopath = rb_realpath_internal(Qnil, fname, 1);
}
else {
sopath = rb_str_new(0, 0);
}
libpath = RSTRING_PTR(sopath);
#endif
#if !VARIABLE_LIBPATH
libpath[sizeof(libpath) - 1] = '\0';
#endif
#if defined DOSISH
translit_char(libpath, '\\', '/');
#elif defined __CYGWIN__
{
# if VARIABLE_LIBPATH
const int win_to_posix = CCP_WIN_A_TO_POSIX | CCP_RELATIVE;
size_t newsize = cygwin_conv_path(win_to_posix, libpath, 0, 0);
if (newsize > 0) {
VALUE rubylib = rb_str_new(0, newsize);
p = RSTRING_PTR(rubylib);
if (cygwin_conv_path(win_to_posix, libpath, p, newsize) == 0) {
rb_str_resize(sopath, 0);
sopath = rubylib;
libpath = p;
}
}
# else
char rubylib[FILENAME_MAX];
cygwin_conv_to_posix_path(libpath, rubylib);
strncpy(libpath, rubylib, sizeof(libpath));
# endif
}
#endif
p = strrchr(libpath, '/');
if (p) {
*p = 0;
if (p - libpath > 3 && !(STRCASECMP(p - 4, "/bin") && strcmp(p - 4, "/lib"))) {
p -= 4;
*p = 0;
}
}
#if !VARIABLE_LIBPATH
else {
strlcpy(libpath, ".", sizeof(libpath));
p = libpath + 1;
}
baselen = p - libpath;
#define PREFIX_PATH() rb_str_new(libpath, baselen)
#else
baselen = p - libpath;
rb_str_resize(sopath, baselen);
libpath = RSTRING_PTR(sopath);
#define PREFIX_PATH() sopath
#endif
#define BASEPATH() rb_str_buf_cat(rb_str_buf_new(baselen+len), libpath, baselen)
#define RUBY_RELATIVE(path, len) rb_str_buf_cat(BASEPATH(), path, len)
#else
static const char exec_prefix[] = RUBY_EXEC_PREFIX;
#define RUBY_RELATIVE(path, len) rubylib_mangled_path(path, len)
#define PREFIX_PATH() RUBY_RELATIVE(exec_prefix, sizeof(exec_prefix)-1)
#endif
load_path = GET_VM()->load_path;
if (safe_level == 0) {
ruby_push_include(getenv("RUBYLIB"), identical_path);
}
id_initial_load_path_mark = rb_intern_const("@gem_prelude_index");
while (*paths) {
size_t len = strlen(paths);
VALUE path = RUBY_RELATIVE(paths, len);
rb_ivar_set(path, id_initial_load_path_mark, path);
rb_ary_push(load_path, path);
paths += len + 1;
}
rb_const_set(rb_cObject, rb_intern_const("TMP_RUBY_PREFIX"), rb_obj_freeze(PREFIX_PATH()));
}
