diff options
Diffstat (limited to 'ruby_2_2/ext/date/date_strptime.c')
| -rw-r--r-- | ruby_2_2/ext/date/date_strptime.c | 701 |
1 files changed, 0 insertions, 701 deletions
diff --git a/ruby_2_2/ext/date/date_strptime.c b/ruby_2_2/ext/date/date_strptime.c deleted file mode 100644 index e318af19f3..0000000000 --- a/ruby_2_2/ext/date/date_strptime.c +++ /dev/null @@ -1,701 +0,0 @@ -/* - date_strptime.c: Coded by Tadayoshi Funaba 2011,2012 -*/ - -#include "ruby.h" -#include "ruby/encoding.h" -#include "ruby/re.h" -#include <ctype.h> - -static const char *day_names[] = { - "Sunday", "Monday", "Tuesday", "Wednesday", - "Thursday", "Friday", "Saturday", - "Sun", "Mon", "Tue", "Wed", - "Thu", "Fri", "Sat" -}; - -static const char *month_names[] = { - "January", "February", "March", "April", - "May", "June", "July", "August", "September", - "October", "November", "December", - "Jan", "Feb", "Mar", "Apr", "May", "Jun", - "Jul", "Aug", "Sep", "Oct", "Nov", "Dec" -}; - -static const char *merid_names[] = { - "am", "pm", - "a.m.", "p.m." -}; - -static const char *extz_pats[] = { - ":z", - "::z", - ":::z" -}; - -#define sizeof_array(o) (sizeof o / sizeof o[0]) - -#define f_negate(x) rb_funcall(x, rb_intern("-@"), 0) -#define f_add(x,y) rb_funcall(x, '+', 1, y) -#define f_sub(x,y) rb_funcall(x, '-', 1, y) -#define f_mul(x,y) rb_funcall(x, '*', 1, y) -#define f_div(x,y) rb_funcall(x, '/', 1, y) -#define f_idiv(x,y) rb_funcall(x, rb_intern("div"), 1, y) -#define f_mod(x,y) rb_funcall(x, '%', 1, y) -#define f_expt(x,y) rb_funcall(x, rb_intern("**"), 1, y) - -#define f_lt_p(x,y) rb_funcall(x, '<', 1, y) -#define f_gt_p(x,y) rb_funcall(x, '>', 1, y) -#define f_le_p(x,y) rb_funcall(x, rb_intern("<="), 1, y) -#define f_ge_p(x,y) rb_funcall(x, rb_intern(">="), 1, y) - -#define f_match(r,s) rb_funcall(r, rb_intern("match"), 1, s) -#define f_aref(o,i) rb_funcall(o, rb_intern("[]"), 1, i) -#define f_end(o,i) rb_funcall(o, rb_intern("end"), 1, i) - -#define issign(c) ((c) == '-' || (c) == '+') - -static int -num_pattern_p(const char *s) -{ - if (isdigit((unsigned char)*s)) - return 1; - if (*s == '%') { - s++; - if (*s == 'E' || *s == 'O') - s++; - if (*s && - (strchr("CDdeFGgHIjkLlMmNQRrSsTUuVvWwXxYy", *s) || - isdigit((unsigned char)*s))) - return 1; - } - return 0; -} - -#define NUM_PATTERN_P() num_pattern_p(&fmt[fi + 1]) - -static long -read_digits(const char *s, VALUE *n, size_t width) -{ - size_t l; - - l = strspn(s, "0123456789"); - - if (l == 0) - return 0; - - if (width < l) - l = width; - - if ((4 * l * sizeof(char)) <= (sizeof(long)*CHAR_BIT)) { - const char *os = s; - long v; - - v = 0; - while ((size_t)(s - os) < l) { - v *= 10; - v += *s - '0'; - s++; - } - if (os == s) - return 0; - *n = LONG2NUM(v); - return l; - } - else { - char *s2 = ALLOCA_N(char, l + 1); - memcpy(s2, s, l); - s2[l] = '\0'; - *n = rb_cstr_to_inum(s2, 10, 0); - return l; - } -} - -#define set_hash(k,v) rb_hash_aset(hash, ID2SYM(rb_intern(k)), v) -#define ref_hash(k) rb_hash_aref(hash, ID2SYM(rb_intern(k))) -#define del_hash(k) rb_hash_delete(hash, ID2SYM(rb_intern(k))) - -#define fail() \ -{ \ - set_hash("_fail", Qtrue); \ - return 0; \ -} - -#define fail_p() (!NIL_P(ref_hash("_fail"))) - -#define READ_DIGITS(n,w) \ -{ \ - size_t l; \ - l = read_digits(&str[si], &n, w); \ - if (l == 0) \ - fail(); \ - si += l; \ -} - -#define READ_DIGITS_MAX(n) READ_DIGITS(n, LONG_MAX) - -static int -valid_range_p(VALUE v, int a, int b) -{ - if (FIXNUM_P(v)) { - int vi = FIX2INT(v); - return !(vi < a || vi > b); - } - return !(f_lt_p(v, INT2NUM(a)) || f_gt_p(v, INT2NUM(b))); -} - -#define recur(fmt) \ -{ \ - size_t l; \ - l = date__strptime_internal(&str[si], slen - si, \ - fmt, sizeof fmt - 1, hash); \ - if (fail_p()) \ - return 0; \ - si += l; \ -} - -VALUE date_zone_to_diff(VALUE); - -static size_t -date__strptime_internal(const char *str, size_t slen, - const char *fmt, size_t flen, VALUE hash) -{ - size_t si, fi; - int c; - - si = fi = 0; - - while (fi < flen) { - - switch (fmt[fi]) { - case '%': - - again: - fi++; - c = fmt[fi]; - - switch (c) { - case 'E': - if (fmt[fi + 1] && strchr("cCxXyY", fmt[fi + 1])) - goto again; - fi--; - goto ordinal; - case 'O': - if (fmt[fi + 1] && strchr("deHImMSuUVwWy", fmt[fi + 1])) - goto again; - fi--; - goto ordinal; - case ':': - { - int i; - - for (i = 0; i < (int)sizeof_array(extz_pats); i++) - if (strncmp(extz_pats[i], &fmt[fi], - strlen(extz_pats[i])) == 0) { - fi += i; - goto again; - } - fail(); - } - - case 'A': - case 'a': - { - int i; - - for (i = 0; i < (int)sizeof_array(day_names); i++) { - size_t l = strlen(day_names[i]); - if (strncasecmp(day_names[i], &str[si], l) == 0) { - si += l; - set_hash("wday", INT2FIX(i % 7)); - goto matched; - } - } - fail(); - } - case 'B': - case 'b': - case 'h': - { - int i; - - for (i = 0; i < (int)sizeof_array(month_names); i++) { - size_t l = strlen(month_names[i]); - if (strncasecmp(month_names[i], &str[si], l) == 0) { - si += l; - set_hash("mon", INT2FIX((i % 12) + 1)); - goto matched; - } - } - fail(); - } - - case 'C': - { - VALUE n; - - if (NUM_PATTERN_P()) - READ_DIGITS(n, 2) - else - READ_DIGITS_MAX(n) - set_hash("_cent", n); - goto matched; - } - - case 'c': - recur("%a %b %e %H:%M:%S %Y"); - goto matched; - - case 'D': - recur("%m/%d/%y"); - goto matched; - - case 'd': - case 'e': - { - VALUE n; - - if (str[si] == ' ') { - si++; - READ_DIGITS(n, 1); - } else { - READ_DIGITS(n, 2); - } - if (!valid_range_p(n, 1, 31)) - fail(); - set_hash("mday", n); - goto matched; - } - - case 'F': - recur("%Y-%m-%d"); - goto matched; - - case 'G': - { - VALUE n; - - if (NUM_PATTERN_P()) - READ_DIGITS(n, 4) - else - READ_DIGITS_MAX(n) - set_hash("cwyear", n); - goto matched; - } - - case 'g': - { - VALUE n; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 0, 99)) - fail(); - set_hash("cwyear",n); - if (NIL_P(ref_hash("_cent"))) - set_hash("_cent", - INT2FIX(f_ge_p(n, INT2FIX(69)) ? 19 : 20)); - goto matched; - } - - case 'H': - case 'k': - { - VALUE n; - - if (str[si] == ' ') { - si++; - READ_DIGITS(n, 1); - } else { - READ_DIGITS(n, 2); - } - if (!valid_range_p(n, 0, 24)) - fail(); - set_hash("hour", n); - goto matched; - } - - case 'I': - case 'l': - { - VALUE n; - - if (str[si] == ' ') { - si++; - READ_DIGITS(n, 1); - } else { - READ_DIGITS(n, 2); - } - if (!valid_range_p(n, 1, 12)) - fail(); - set_hash("hour", n); - goto matched; - } - - case 'j': - { - VALUE n; - - READ_DIGITS(n, 3); - if (!valid_range_p(n, 1, 366)) - fail(); - set_hash("yday", n); - goto matched; - } - - case 'L': - case 'N': - { - VALUE n; - int sign = 1; - size_t osi; - - if (issign(str[si])) { - if (str[si] == '-') - sign = -1; - si++; - } - osi = si; - if (NUM_PATTERN_P()) - READ_DIGITS(n, c == 'L' ? 3 : 9) - else - READ_DIGITS_MAX(n) - if (sign == -1) - n = f_negate(n); - set_hash("sec_fraction", - rb_rational_new2(n, - f_expt(INT2FIX(10), - ULONG2NUM(si - osi)))); - goto matched; - } - - case 'M': - { - VALUE n; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 0, 59)) - fail(); - set_hash("min", n); - goto matched; - } - - case 'm': - { - VALUE n; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 1, 12)) - fail(); - set_hash("mon", n); - goto matched; - } - - case 'n': - case 't': - recur(" "); - goto matched; - - case 'P': - case 'p': - { - int i; - - for (i = 0; i < 4; i++) { - size_t l = strlen(merid_names[i]); - if (strncasecmp(merid_names[i], &str[si], l) == 0) { - si += l; - set_hash("_merid", INT2FIX((i % 2) == 0 ? 0 : 12)); - goto matched; - } - } - fail(); - } - - case 'Q': - { - VALUE n; - int sign = 1; - - if (str[si] == '-') { - sign = -1; - si++; - } - READ_DIGITS_MAX(n); - if (sign == -1) - n = f_negate(n); - set_hash("seconds", - rb_rational_new2(n, - f_expt(INT2FIX(10), - INT2FIX(3)))); - goto matched; - } - - case 'R': - recur("%H:%M"); - goto matched; - - case 'r': - recur("%I:%M:%S %p"); - goto matched; - - case 'S': - { - VALUE n; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 0, 60)) - fail(); - set_hash("sec", n); - goto matched; - } - - case 's': - { - VALUE n; - int sign = 1; - - if (str[si] == '-') { - sign = -1; - si++; - } - READ_DIGITS_MAX(n); - if (sign == -1) - n = f_negate(n); - set_hash("seconds", n); - goto matched; - } - - case 'T': - recur("%H:%M:%S"); - goto matched; - - case 'U': - case 'W': - { - VALUE n; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 0, 53)) - fail(); - set_hash(c == 'U' ? "wnum0" : "wnum1", n); - goto matched; - } - - case 'u': - { - VALUE n; - - READ_DIGITS(n, 1); - if (!valid_range_p(n, 1, 7)) - fail(); - set_hash("cwday", n); - goto matched; - } - - case 'V': - { - VALUE n; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 1, 53)) - fail(); - set_hash("cweek", n); - goto matched; - } - - case 'v': - recur("%e-%b-%Y"); - goto matched; - - case 'w': - { - VALUE n; - - READ_DIGITS(n, 1); - if (!valid_range_p(n, 0, 6)) - fail(); - set_hash("wday", n); - goto matched; - } - - case 'X': - recur("%H:%M:%S"); - goto matched; - - case 'x': - recur("%m/%d/%y"); - goto matched; - - case 'Y': - { - VALUE n; - int sign = 1; - - if (issign(str[si])) { - if (str[si] == '-') - sign = -1; - si++; - } - if (NUM_PATTERN_P()) - READ_DIGITS(n, 4) - else - READ_DIGITS_MAX(n) - if (sign == -1) - n = f_negate(n); - set_hash("year", n); - goto matched; - } - - case 'y': - { - VALUE n; - int sign = 1; - - READ_DIGITS(n, 2); - if (!valid_range_p(n, 0, 99)) - fail(); - if (sign == -1) - n = f_negate(n); - set_hash("year", n); - if (NIL_P(ref_hash("_cent"))) - set_hash("_cent", - INT2FIX(f_ge_p(n, INT2FIX(69)) ? 19 : 20)); - goto matched; - } - - case 'Z': - case 'z': - { - static const char pat_source[] = - "\\A(" - "(?:gmt|utc?)?[-+]\\d+(?:[,.:]\\d+(?::\\d+)?)?" - "|(?-i:[[:alpha:].\\s]+)(?:standard|daylight)\\s+time\\b" - "|(?-i:[[:alpha:]]+)(?:\\s+dst)?\\b" - ")"; - static VALUE pat = Qnil; - VALUE m, b; - - if (NIL_P(pat)) { - pat = rb_reg_new(pat_source, sizeof pat_source - 1, - ONIG_OPTION_IGNORECASE); - rb_gc_register_mark_object(pat); - } - - b = rb_backref_get(); - rb_match_busy(b); - m = f_match(pat, rb_usascii_str_new2(&str[si])); - - if (!NIL_P(m)) { - VALUE s, l, o; - - s = rb_reg_nth_match(1, m); - l = f_end(m, INT2FIX(0)); - o = date_zone_to_diff(s); - si += NUM2LONG(l); - set_hash("zone", s); - set_hash("offset", o); - rb_backref_set(b); - goto matched; - } - rb_backref_set(b); - fail(); - } - - case '%': - if (str[si] != '%') - fail(); - si++; - goto matched; - - case '+': - recur("%a %b %e %H:%M:%S %Z %Y"); - goto matched; - - default: - if (str[si] != '%') - fail(); - si++; - if (fi < flen) - if (str[si] != fmt[fi]) - fail(); - si++; - goto matched; - } - case ' ': - case '\t': - case '\n': - case '\v': - case '\f': - case '\r': - while (isspace((unsigned char)str[si])) - si++; - fi++; - break; - default: - ordinal: - if (str[si] != fmt[fi]) - fail(); - si++; - fi++; - break; - matched: - fi++; - break; - } - } - - return si; -} - -VALUE -date__strptime(const char *str, size_t slen, - const char *fmt, size_t flen, VALUE hash) -{ - size_t si; - VALUE cent, merid; - - si = date__strptime_internal(str, slen, fmt, flen, hash); - - if (slen > si) { - VALUE s; - - s = rb_usascii_str_new(&str[si], slen - si); - set_hash("leftover", s); - } - - if (fail_p()) - return Qnil; - - cent = ref_hash("_cent"); - if (!NIL_P(cent)) { - VALUE year; - - year = ref_hash("cwyear"); - if (!NIL_P(year)) - set_hash("cwyear", f_add(year, f_mul(cent, INT2FIX(100)))); - year = ref_hash("year"); - if (!NIL_P(year)) - set_hash("year", f_add(year, f_mul(cent, INT2FIX(100)))); - del_hash("_cent"); - } - - merid = ref_hash("_merid"); - if (!NIL_P(merid)) { - VALUE hour; - - hour = ref_hash("hour"); - if (!NIL_P(hour)) { - hour = f_mod(hour, INT2FIX(12)); - set_hash("hour", f_add(hour, merid)); - } - del_hash("_merid"); - } - - return hash; -} - -/* -Local variables: -c-file-style: "ruby" -End: -*/ |