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https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
448e0d6668
_parse. [experimental] * ext/date/date_parse.c: new. * ext/date/lib/date/format.rb: removed ruby version of _parse. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@31322 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
1349 lines
26 KiB
C
1349 lines
26 KiB
C
/*
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date_parse.c: Coded by Tadayoshi Funaba 2011
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*/
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#include "ruby.h"
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#include "ruby/encoding.h"
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#include "ruby/re.h"
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#include <ctype.h>
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#define sizeof_array(o) (sizeof o / sizeof o[0])
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#define f_negate(x) rb_funcall(x, rb_intern("-@"), 0)
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#define f_add(x,y) rb_funcall(x, '+', 1, y)
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#define f_sub(x,y) rb_funcall(x, '-', 1, y)
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#define f_mul(x,y) rb_funcall(x, '*', 1, y)
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#define f_div(x,y) rb_funcall(x, '/', 1, y)
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#define f_mod(x,y) rb_funcall(x, '%', 1, y)
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#define f_expt(x,y) rb_funcall(x, rb_intern("**"), 1, y)
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#define f_lt_p(x,y) rb_funcall(x, '<', 1, y)
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#define f_gt_p(x,y) rb_funcall(x, '>', 1, y)
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#define f_le_p(x,y) rb_funcall(x, rb_intern("<="), 1, y)
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#define f_ge_p(x,y) rb_funcall(x, rb_intern(">="), 1, y)
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#define f_to_s(x) rb_funcall(x, rb_intern("to_s"), 0)
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#define f_match(r,s) rb_funcall(r, rb_intern("match"), 1, s)
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#define f_aref(o,i) rb_funcall(o, rb_intern("[]"), 1, i)
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#define f_aref2(o,i,j) rb_funcall(o, rb_intern("[]"), 2, i, j)
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#define f_begin(o,i) rb_funcall(o, rb_intern("begin"), 1, i)
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#define f_end(o,i) rb_funcall(o, rb_intern("end"), 1, i)
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#define f_aset(o,i,v) rb_funcall(o, rb_intern("[]="), 2, i, v)
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#define f_aset2(o,i,j,v) rb_funcall(o, rb_intern("[]="), 3, i, j, v)
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#define f_sub_bang(s,r,x) rb_funcall(s, rb_intern("sub!"), 2, r, x)
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#define f_gsub_bang(s,r,x) rb_funcall(s, rb_intern("gsub!"), 2, r, x)
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#define f_split(s,p) rb_funcall(s, rb_intern("split"), 1, p)
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#define f_downcase(x) rb_funcall(x, rb_intern("downcase"), 0)
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#define set_hash(k,v) rb_hash_aset(hash, ID2SYM(rb_intern(k)), v)
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#define ref_hash(k) rb_hash_aref(hash, ID2SYM(rb_intern(k)))
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#define del_hash(k) rb_hash_delete(hash, ID2SYM(rb_intern(k)))
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#define cstr2num(s) rb_cstr_to_inum(s, 10, 0)
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#define str2num(s) rb_str_to_inum(s, 10, 0)
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static const char *abbr_days[] = {
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"sun", "mon", "tue", "wed",
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"thu", "fri", "sat"
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};
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static const char *abbr_months[] = {
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"jan", "feb", "mar", "apr", "may", "jun",
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"jul", "aug", "sep", "oct", "nov", "dec"
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};
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static void
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s3e(VALUE hash, VALUE y, VALUE m, VALUE d, int bc)
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{
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VALUE c = Qnil;
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if (TYPE(m) != T_STRING)
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m = f_to_s(m);
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if (!NIL_P(y) && !NIL_P(m) && NIL_P(d)) {
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VALUE oy = y;
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VALUE om = m;
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VALUE od = d;
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y = od;
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m = oy;
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d = om;
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}
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if (NIL_P(y)) {
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if (!NIL_P(d) && RSTRING_LEN(d) > 2) {
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y = d;
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d = Qnil;
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}
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if (!NIL_P(d) && *RSTRING_PTR(d) == '\'') {
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y = d;
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d = Qnil;
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}
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}
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if (!NIL_P(y)) {
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const char *s, *bp, *ep;
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size_t l;
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s = RSTRING_PTR(y);
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while (*s != '-' && *s != '+' && !isdigit(*s))
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s++;
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bp = s;
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if (*s == '-' || *s == '+') {
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s++;
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}
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l = strspn(s, "0123456789");
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ep = s + l;
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if (*ep) {
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y = d;
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d = rb_str_new(bp, ep - bp);
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}
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}
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if (!NIL_P(m)) {
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const char *s;
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s = RSTRING_PTR(m);
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if (*s == '\'' || RSTRING_LEN(m) > 2) {
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/* us -> be */
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VALUE oy = y;
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VALUE om = m;
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VALUE od = d;
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y = om;
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m = od;
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d = oy;
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}
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}
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if (!NIL_P(d)) {
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const char *s;
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s = RSTRING_PTR(d);
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if (*s == '\'' || RSTRING_LEN(d) > 2) {
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VALUE oy = y;
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VALUE od = d;
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y = od;
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d = oy;
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}
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}
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if (!NIL_P(y)) {
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const char *s, *bp, *ep;
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int sign = 0;
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size_t l;
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VALUE iy;
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s = RSTRING_PTR(y);
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while (*s != '-' && *s != '+' && !isdigit(*s))
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s++;
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bp = s;
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if (*s == '-' || *s == '+') {
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s++;
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sign = 1;
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}
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if (sign)
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c = Qfalse;
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l = strspn(s, "0123456789");
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ep = s + l;
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if (l > 2)
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c = Qfalse;
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{
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char *buf;
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buf = ALLOC_N(char, ep - bp + 1);
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memcpy(buf, bp, ep - bp);
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buf[ep - bp] = '\0';
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iy = cstr2num(buf);
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}
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if (bc)
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iy = f_add(f_negate(iy), INT2FIX(1));
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set_hash("year", iy);
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}
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if (!NIL_P(m)) {
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const char *s, *bp, *ep;
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size_t l;
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VALUE im;
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s = RSTRING_PTR(m);
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while (!isdigit(*s))
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s++;
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bp = s;
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l = strspn(s, "0123456789");
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ep = s + l;
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{
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char *buf;
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buf = ALLOC_N(char, ep - bp + 1);
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memcpy(buf, bp, ep - bp);
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buf[ep - bp] = '\0';
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im = cstr2num(buf);
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}
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set_hash("mon", im);
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}
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if (!NIL_P(d)) {
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const char *s, *bp, *ep;
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size_t l;
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VALUE id;
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s = RSTRING_PTR(d);
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while (!isdigit(*s))
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s++;
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bp = s;
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l = strspn(s, "0123456789");
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ep = s + l;
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{
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char *buf;
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buf = ALLOC_N(char, ep - bp + 1);
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memcpy(buf, bp, ep - bp);
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buf[ep - bp] = '\0';
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id = cstr2num(buf);
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}
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set_hash("mday", id);
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}
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if (!NIL_P(c))
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set_hash("_comp", c);
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}
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#define ABBR_DAYS "sun|mon|tue|wed|thu|fri|sat"
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#define ABBR_MONTHS "jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec"
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static VALUE
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regcomp(const char *source, long len, int opt)
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{
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VALUE pat;
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pat = rb_reg_new(source, len, opt);
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rb_gc_register_mark_object(pat);
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return pat;
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}
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#define REGCOMP(pat,opt) \
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{ \
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if (NIL_P(pat)) \
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pat = regcomp(pat##_source, sizeof pat##_source - 1, opt); \
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}
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#define REGCOMP_0(pat) REGCOMP(pat, 0)
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#define REGCOMP_I(pat) REGCOMP(pat, ONIG_OPTION_IGNORECASE)
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#define SUBS(s,p,c) \
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{ \
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return subs(s, p, hash, c); \
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}
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static int
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subs(VALUE str, VALUE pat, VALUE hash, int (*cb)(VALUE, VALUE))
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{
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VALUE m;
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m = f_match(pat, str);
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if (NIL_P(m))
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return 0;
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{
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VALUE be, en;
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be = f_begin(m, INT2FIX(0));
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en = f_end(m, INT2FIX(0));
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f_aset2(str, be, LONG2NUM(NUM2LONG(en) - NUM2LONG(be)),
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rb_str_new(" ", 1));
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(*cb)(m, hash);
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}
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return 1;
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}
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static int
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day_num(VALUE s)
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{
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int i;
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for (i = 0; i < (int)sizeof_array(abbr_days); i++)
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if (strncasecmp(abbr_days[i], RSTRING_PTR(s), 3) == 0)
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break;
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return i;
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}
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static int
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mon_num(VALUE s)
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{
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int i;
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for (i = 0; i < (int)sizeof_array(abbr_months); i++)
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if (strncasecmp(abbr_months[i], RSTRING_PTR(s), 3) == 0)
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break;
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return i + 1;
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}
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static int
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parse_day_cb(VALUE m, VALUE hash)
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{
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VALUE s;
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s = f_aref(m, INT2FIX(1));
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set_hash("wday", INT2FIX(day_num(s)));
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return 1;
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}
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static int
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parse_day(VALUE str, VALUE hash)
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{
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static const char pat_source[] =
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"\\b(" ABBR_DAYS ")[^-\\d\\s]*";
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static VALUE pat = Qnil;
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REGCOMP_I(pat);
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SUBS(str, pat, parse_day_cb);
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}
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static int
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parse_time2_cb(VALUE m, VALUE hash)
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{
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VALUE h, min, s, f, p;
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h = f_aref(m, INT2FIX(1));
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h = str2num(h);
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min = f_aref(m, INT2FIX(2));
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if (!NIL_P(min))
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min = str2num(min);
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s = f_aref(m, INT2FIX(3));
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if (!NIL_P(s))
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s = str2num(s);
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f = f_aref(m, INT2FIX(4));
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if (!NIL_P(f))
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f = rb_rational_new2(str2num(f),
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f_expt(INT2FIX(10), LONG2NUM(RSTRING_LEN(f))));
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p = f_aref(m, INT2FIX(5));
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if (!NIL_P(p)) {
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int ih = NUM2INT(h);
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ih %= 12;
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if (*RSTRING_PTR(p) == 'P' || *RSTRING_PTR(p) == 'p')
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ih += 12;
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h = INT2FIX(ih);
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}
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set_hash("hour", h);
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if (!NIL_P(min))
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set_hash("min", min);
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if (!NIL_P(s))
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set_hash("sec", s);
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if (!NIL_P(f))
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set_hash("sec_fraction", f);
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return 1;
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}
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static int
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parse_time_cb(VALUE m, VALUE hash)
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{
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static const char pat_source[] =
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"\\A(\\d+)h?"
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"(?:\\s*:?\\s*(\\d+)m?"
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"(?:"
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"\\s*:?\\s*(\\d+)(?:[,.](\\d+))?s?"
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")?"
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")?"
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"(?:\\s*([ap])(?:m\\b|\\.m\\.))?";
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static VALUE pat = Qnil;
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VALUE s1, s2;
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s1 = f_aref(m, INT2FIX(1));
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s2 = f_aref(m, INT2FIX(2));
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if (!NIL_P(s2))
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set_hash("zone", s2);
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REGCOMP_I(pat);
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{
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VALUE m = f_match(pat, s1);
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if (NIL_P(m))
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return 0;
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parse_time2_cb(m, hash);
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}
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return 1;
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}
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static int
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parse_time(VALUE str, VALUE hash)
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{
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static const char pat_source[] =
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"("
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"(?:"
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"\\d+\\s*:\\s*\\d+"
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"(?:"
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"\\s*:\\s*\\d+(?:[,.]\\d*)?"
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")?"
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"|"
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"\\d+\\s*h(?:\\s*\\d+m?(?:\\s*\\d+s?)?)?"
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")"
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"(?:"
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"\\s*"
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"[ap](?:m\\b|\\.m\\.)"
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")?"
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"|"
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"\\d+\\s*[ap](?:m\\b|\\.m\\.)"
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")"
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"(?:"
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"\\s*"
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"("
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"(?:gmt|utc?)?[-+]\\d+(?:[,.:]\\d+(?::\\d+)?)?"
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"|"
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"[[:alpha:].\\s]+(?:standard|daylight)\\stime\\b"
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"|"
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"[[:alpha:]]+(?:\\sdst)?\\b"
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")"
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")?";
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static VALUE pat = Qnil;
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REGCOMP_I(pat);
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SUBS(str, pat, parse_time_cb);
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}
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static int
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parse_eu_cb(VALUE m, VALUE hash)
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{
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VALUE y, mon, d, b;
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d = f_aref(m, INT2FIX(1));
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mon = f_aref(m, INT2FIX(2));
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b = f_aref(m, INT2FIX(3));
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y = f_aref(m, INT2FIX(4));
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mon = INT2FIX(mon_num(mon));
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s3e(hash, y, mon, d, !NIL_P(b) &&
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(*RSTRING_PTR(b) == 'B' ||
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*RSTRING_PTR(b) == 'b'));
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return 1;
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}
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static int
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parse_eu(VALUE str, VALUE hash)
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{
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static const char pat_source[] =
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"'?(\\d+)[^-\\d\\s]*"
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"\\s*"
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"(" ABBR_MONTHS ")[^-\\d\\s']*"
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"(?:"
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"\\s*"
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"(c(?:e|\\.e\\.)|b(?:ce|\\.c\\.e\\.)|a(?:d|\\.d\\.)|b(?:c|\\.c\\.))?"
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"\\s*"
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"('?-?\\d+(?:(?:st|nd|rd|th)\\b)?)"
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")?";
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static VALUE pat = Qnil;
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REGCOMP_I(pat);
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SUBS(str, pat, parse_eu_cb);
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}
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static int
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parse_us_cb(VALUE m, VALUE hash)
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{
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VALUE y, mon, d, b;
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mon = f_aref(m, INT2FIX(1));
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d = f_aref(m, INT2FIX(2));
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b = f_aref(m, INT2FIX(3));
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y = f_aref(m, INT2FIX(4));
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mon = INT2FIX(mon_num(mon));
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s3e(hash, y, mon, d, !NIL_P(b) &&
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(*RSTRING_PTR(b) == 'B' ||
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*RSTRING_PTR(b) == 'b'));
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return 1;
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}
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static int
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parse_us(VALUE str, VALUE hash)
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{
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static const char pat_source[] =
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"\\b(" ABBR_MONTHS ")[^-\\d\\s']*"
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"\\s*"
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"('?\\d+)[^-\\d\\s']*"
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"(?:"
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"\\s*"
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"(c(?:e|\\.e\\.)|b(?:ce|\\.c\\.e\\.)|a(?:d|\\.d\\.)|b(?:c|\\.c\\.))?"
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"\\s*"
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"('?-?\\d+)"
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")?";
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static VALUE pat = Qnil;
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REGCOMP_I(pat);
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SUBS(str, pat, parse_us_cb);
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}
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static int
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parse_iso_cb(VALUE m, VALUE hash)
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{
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VALUE y, mon, d;
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y = f_aref(m, INT2FIX(1));
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mon = f_aref(m, INT2FIX(2));
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d = f_aref(m, INT2FIX(3));
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s3e(hash, y, mon, d, 0);
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return 1;
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}
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static int
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parse_iso(VALUE str, VALUE hash)
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{
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static const char pat_source[] = "('?[-+]?\\d+)-(\\d+)-('?-?\\d+)";
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static VALUE pat = Qnil;
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|
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REGCOMP_0(pat);
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SUBS(str, pat, parse_iso_cb);
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}
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static int
|
|
parse_iso21_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y, w, d;
|
|
|
|
y = f_aref(m, INT2FIX(1));
|
|
w = f_aref(m, INT2FIX(2));
|
|
d = f_aref(m, INT2FIX(3));
|
|
|
|
if (!NIL_P(y))
|
|
set_hash("cwyear", str2num(y));
|
|
set_hash("cweek", str2num(w));
|
|
if (!NIL_P(d))
|
|
set_hash("cwday", str2num(d));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_iso21(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"\\b(\\d{2}|\\d{4})?-?w(\\d{2})(?:-?(\\d))?\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_iso21_cb);
|
|
}
|
|
|
|
static int
|
|
parse_iso22_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE d;
|
|
|
|
d = f_aref(m, INT2FIX(1));
|
|
set_hash("cwday", str2num(d));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_iso22(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"-w-(\\d)\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_iso22_cb);
|
|
}
|
|
|
|
static int
|
|
parse_iso23_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE mon, d;
|
|
|
|
mon = f_aref(m, INT2FIX(1));
|
|
d = f_aref(m, INT2FIX(2));
|
|
|
|
if (!NIL_P(mon))
|
|
set_hash("mon", str2num(mon));
|
|
set_hash("mday", str2num(d));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_iso23(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"--(\\d{2})?-(\\d{2})\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_0(pat);
|
|
SUBS(str, pat, parse_iso23_cb);
|
|
}
|
|
|
|
static int
|
|
parse_iso24_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE mon, d;
|
|
|
|
mon = f_aref(m, INT2FIX(1));
|
|
d = f_aref(m, INT2FIX(2));
|
|
|
|
set_hash("mon", str2num(mon));
|
|
if (!NIL_P(d))
|
|
set_hash("mday", str2num(d));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_iso24(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"--(\\d{2})(\\d{2})?\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_0(pat);
|
|
SUBS(str, pat, parse_iso24_cb);
|
|
}
|
|
|
|
static int
|
|
parse_iso25_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y, d;
|
|
|
|
y = f_aref(m, INT2FIX(1));
|
|
d = f_aref(m, INT2FIX(2));
|
|
|
|
set_hash("year", str2num(y));
|
|
set_hash("yday", str2num(d));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_iso25(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat0_source[] =
|
|
"[,.](\\d{2}|\\d{4})-\\d{3}\\b";
|
|
static VALUE pat0 = Qnil;
|
|
static const char pat_source[] =
|
|
"\\b(\\d{2}|\\d{4})-(\\d{3})\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_0(pat0);
|
|
REGCOMP_0(pat);
|
|
|
|
if (!NIL_P(f_match(pat0, str)))
|
|
return 0;
|
|
SUBS(str, pat, parse_iso25_cb);
|
|
}
|
|
|
|
static int
|
|
parse_iso26_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE d;
|
|
|
|
d = f_aref(m, INT2FIX(1));
|
|
set_hash("yday", str2num(d));
|
|
|
|
return 1;
|
|
}
|
|
static int
|
|
parse_iso26(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat0_source[] =
|
|
"\\d-\\d{3}\\b";
|
|
static VALUE pat0 = Qnil;
|
|
static const char pat_source[] =
|
|
"\\b-(\\d{3})\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_0(pat0);
|
|
REGCOMP_0(pat);
|
|
|
|
if (!NIL_P(f_match(pat0, str)))
|
|
return 0;
|
|
SUBS(str, pat, parse_iso26_cb);
|
|
}
|
|
|
|
static int
|
|
parse_iso2(VALUE str, VALUE hash)
|
|
{
|
|
if (parse_iso21(str, hash))
|
|
goto ok;
|
|
if (parse_iso22(str, hash))
|
|
goto ok;
|
|
if (parse_iso23(str, hash))
|
|
goto ok;
|
|
if (parse_iso24(str, hash))
|
|
goto ok;
|
|
if (parse_iso25(str, hash))
|
|
goto ok;
|
|
if (parse_iso26(str, hash))
|
|
goto ok;
|
|
return 0;
|
|
|
|
ok:
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_jis_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE e, y, mon, d;
|
|
int ep;
|
|
|
|
e = f_aref(m, INT2FIX(1));
|
|
y = f_aref(m, INT2FIX(2));
|
|
mon = f_aref(m, INT2FIX(3));
|
|
d = f_aref(m, INT2FIX(4));
|
|
|
|
switch (*RSTRING_PTR(e)) {
|
|
case 'M': case 'm': ep = 1867; break;
|
|
case 'T': case 't': ep = 1911; break;
|
|
case 'S': case 's': ep = 1925; break;
|
|
case 'H': case 'h': ep = 1988; break;
|
|
default: ep = 0; break;
|
|
}
|
|
|
|
set_hash("year", f_add(str2num(y), INT2FIX(ep)));
|
|
set_hash("mon", str2num(mon));
|
|
set_hash("mday", str2num(d));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_jis(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] = "\\b([mtsh])(\\d+)\\.(\\d+)\\.(\\d+)";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_jis_cb);
|
|
}
|
|
|
|
static int
|
|
parse_vms11_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y, mon, d;
|
|
|
|
d = f_aref(m, INT2FIX(1));
|
|
mon = f_aref(m, INT2FIX(2));
|
|
y = f_aref(m, INT2FIX(3));
|
|
|
|
mon = INT2FIX(mon_num(mon));
|
|
|
|
s3e(hash, y, mon, d, 0);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_vms11(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"('?-?\\d+)-(" ABBR_MONTHS ")[^-]*"
|
|
"-('?-?\\d+)";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_vms11_cb);
|
|
}
|
|
|
|
static int
|
|
parse_vms12_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y, mon, d;
|
|
|
|
mon = f_aref(m, INT2FIX(1));
|
|
d = f_aref(m, INT2FIX(2));
|
|
y = f_aref(m, INT2FIX(3));
|
|
|
|
mon = INT2FIX(mon_num(mon));
|
|
|
|
s3e(hash, y, mon, d, 0);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_vms12(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"\\b(" ABBR_MONTHS ")[^-]*"
|
|
"-('?-?\\d+)(?:-('?-?\\d+))?";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_vms12_cb);
|
|
}
|
|
|
|
static int
|
|
parse_vms(VALUE str, VALUE hash)
|
|
{
|
|
if (parse_vms11(str, hash))
|
|
goto ok;
|
|
if (parse_vms12(str, hash))
|
|
goto ok;
|
|
return 0;
|
|
|
|
ok:
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_sla_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y, mon, d;
|
|
|
|
y = f_aref(m, INT2FIX(1));
|
|
mon = f_aref(m, INT2FIX(2));
|
|
d = f_aref(m, INT2FIX(3));
|
|
|
|
s3e(hash, y, mon, d, 0);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_sla(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"('?-?\\d+)/\\s*('?\\d+)(?:\\D\\s*('?-?\\d+))?";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_sla_cb);
|
|
}
|
|
|
|
static int
|
|
parse_dot_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y, mon, d;
|
|
|
|
y = f_aref(m, INT2FIX(1));
|
|
mon = f_aref(m, INT2FIX(2));
|
|
d = f_aref(m, INT2FIX(3));
|
|
|
|
s3e(hash, y, mon, d, 0);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_dot(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"('?-?\\d+)\\.\\s*('?\\d+)\\.\\s*('?-?\\d+)";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_dot_cb);
|
|
}
|
|
|
|
static int
|
|
parse_year_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y;
|
|
|
|
y = f_aref(m, INT2FIX(1));
|
|
set_hash("year", str2num(y));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_year(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] = "'(\\d+)\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_0(pat);
|
|
SUBS(str, pat, parse_year_cb);
|
|
}
|
|
|
|
static int
|
|
parse_mon_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE mon;
|
|
|
|
mon = f_aref(m, INT2FIX(1));
|
|
set_hash("mon", INT2FIX(mon_num(mon)));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_mon(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] = "\\b(" ABBR_MONTHS ")\\S*";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_mon_cb);
|
|
}
|
|
|
|
static int
|
|
parse_mday_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE d;
|
|
|
|
d = f_aref(m, INT2FIX(1));
|
|
set_hash("mday", str2num(d));
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_mday(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] = "(\\d+)(st|nd|rd|th)\\b";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_mday_cb);
|
|
}
|
|
|
|
static int
|
|
n2i(const char *s, int f, int w)
|
|
{
|
|
int e, v, i;
|
|
|
|
e = f + w;
|
|
v = 0;
|
|
for (i = f; i < e; i++) {
|
|
v *= 10;
|
|
v += s[i] - '0';
|
|
}
|
|
return v;
|
|
}
|
|
|
|
static int
|
|
parse_ddd_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE s1, s2, s3, s4, s5;
|
|
const char *cs2, *cs3, *cs5;
|
|
long l2, l3, l4, l5;
|
|
|
|
s1 = f_aref(m, INT2FIX(1));
|
|
s2 = f_aref(m, INT2FIX(2));
|
|
s3 = f_aref(m, INT2FIX(3));
|
|
s4 = f_aref(m, INT2FIX(4));
|
|
s5 = f_aref(m, INT2FIX(5));
|
|
|
|
cs2 = RSTRING_PTR(s2);
|
|
l2 = RSTRING_LEN(s2);
|
|
|
|
switch (l2) {
|
|
case 2:
|
|
if (NIL_P(s3) && !NIL_P(s4))
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
else
|
|
set_hash("mday", INT2FIX(n2i(cs2, 0, 2)));
|
|
break;
|
|
case 4:
|
|
if (NIL_P(s3) && !NIL_P(s4)) {
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
set_hash("min", INT2FIX(n2i(cs2, l2-4, 2)));
|
|
}
|
|
else {
|
|
set_hash("mon", INT2FIX(n2i(cs2, 0, 2)));
|
|
set_hash("mday", INT2FIX(n2i(cs2, 2, 2)));
|
|
}
|
|
break;
|
|
case 6:
|
|
if (NIL_P(s3) && !NIL_P(s4)) {
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
set_hash("min", INT2FIX(n2i(cs2, l2-4, 2)));
|
|
set_hash("hour", INT2FIX(n2i(cs2, l2-6, 2)));
|
|
}
|
|
else {
|
|
int y = n2i(cs2, 0, 2);
|
|
if (!NIL_P(s1) && *RSTRING_PTR(s1) == '-')
|
|
y = -y;
|
|
set_hash("year", INT2FIX(y));
|
|
set_hash("mon", INT2FIX(n2i(cs2, 2, 2)));
|
|
set_hash("mday", INT2FIX(n2i(cs2, 4, 2)));
|
|
}
|
|
break;
|
|
case 8:
|
|
case 10:
|
|
case 12:
|
|
case 14:
|
|
if (NIL_P(s3) && !NIL_P(s4)) {
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
set_hash("min", INT2FIX(n2i(cs2, l2-4, 2)));
|
|
set_hash("hour", INT2FIX(n2i(cs2, l2-6, 2)));
|
|
set_hash("mday", INT2FIX(n2i(cs2, l2-8, 2)));
|
|
if (l2 >= 10)
|
|
set_hash("mon", INT2FIX(n2i(cs2, l2-10, 2)));
|
|
if (l2 == 12) {
|
|
int y = n2i(cs2, l2-12, 2);
|
|
if (!NIL_P(s1) && *RSTRING_PTR(s1) == '-')
|
|
y = -y;
|
|
set_hash("year", INT2FIX(y));
|
|
}
|
|
if (l2 == 14) {
|
|
int y = n2i(cs2, l2-14, 4);
|
|
if (!NIL_P(s1) && *RSTRING_PTR(s1) == '-')
|
|
y = -y;
|
|
set_hash("year", INT2FIX(y));
|
|
set_hash("_comp", Qfalse);
|
|
}
|
|
}
|
|
else {
|
|
int y = n2i(cs2, 0, 4);
|
|
if (!NIL_P(s1) && *RSTRING_PTR(s1) == '-')
|
|
y = -y;
|
|
set_hash("year", INT2FIX(y));
|
|
set_hash("mon", INT2FIX(n2i(cs2, 4, 2)));
|
|
set_hash("mday", INT2FIX(n2i(cs2, 6, 2)));
|
|
if (l2 >= 10)
|
|
set_hash("hour", INT2FIX(n2i(cs2, 8, 2)));
|
|
if (l2 >= 12)
|
|
set_hash("min", INT2FIX(n2i(cs2, 10, 2)));
|
|
if (l2 >= 14)
|
|
set_hash("sec", INT2FIX(n2i(cs2, 12, 2)));
|
|
set_hash("_comp", Qfalse);
|
|
}
|
|
break;
|
|
case 3:
|
|
if (NIL_P(s3) && !NIL_P(s4)) {
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
set_hash("min", INT2FIX(n2i(cs2, l2-3, 1)));
|
|
}
|
|
else
|
|
set_hash("yday", INT2FIX(n2i(cs2, 0, 3)));
|
|
break;
|
|
case 5:
|
|
if (NIL_P(s3) && !NIL_P(s4)) {
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
set_hash("min", INT2FIX(n2i(cs2, l2-4, 2)));
|
|
set_hash("hour", INT2FIX(n2i(cs2, l2-5, 1)));
|
|
}
|
|
else {
|
|
int y = n2i(cs2, 0, 2);
|
|
if (!NIL_P(s1) && *RSTRING_PTR(s1) == '-')
|
|
y = -y;
|
|
set_hash("year", INT2FIX(y));
|
|
set_hash("yday", INT2FIX(n2i(cs2, 2, 3)));
|
|
}
|
|
break;
|
|
case 7:
|
|
if (NIL_P(s3) && !NIL_P(s4)) {
|
|
set_hash("sec", INT2FIX(n2i(cs2, l2-2, 2)));
|
|
set_hash("min", INT2FIX(n2i(cs2, l2-4, 2)));
|
|
set_hash("hour", INT2FIX(n2i(cs2, l2-6, 2)));
|
|
set_hash("mday", INT2FIX(n2i(cs2, l2-7, 1)));
|
|
}
|
|
else {
|
|
int y = n2i(cs2, 0, 4);
|
|
if (!NIL_P(s1) && *RSTRING_PTR(s1) == '-')
|
|
y = -y;
|
|
set_hash("year", INT2FIX(y));
|
|
set_hash("yday", INT2FIX(n2i(cs2, 4, 3)));
|
|
}
|
|
break;
|
|
}
|
|
if (!NIL_P(s3)) {
|
|
cs3 = RSTRING_PTR(s3);
|
|
l3 = RSTRING_LEN(s3);
|
|
|
|
if (!NIL_P(s4)) {
|
|
switch (l3) {
|
|
case 2:
|
|
case 4:
|
|
case 6:
|
|
set_hash("sec", INT2FIX(n2i(cs3, l3-2, 2)));
|
|
if (l3 >= 4)
|
|
set_hash("min", INT2FIX(n2i(cs3, l3-4, 2)));
|
|
if (l3 >= 6)
|
|
set_hash("hour", INT2FIX(n2i(cs3, l3-6, 2)));
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
switch (l3) {
|
|
case 2:
|
|
case 4:
|
|
case 6:
|
|
set_hash("hour", INT2FIX(n2i(cs3, 0, 2)));
|
|
if (l3 >= 4)
|
|
set_hash("min", INT2FIX(n2i(cs3, 2, 2)));
|
|
if (l3 >= 6)
|
|
set_hash("sec", INT2FIX(n2i(cs3, 4, 2)));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (!NIL_P(s4)) {
|
|
l4 = RSTRING_LEN(s4);
|
|
|
|
set_hash("sec_fraction",
|
|
rb_rational_new2(str2num(s4),
|
|
f_expt(INT2FIX(10), LONG2NUM(l4))));
|
|
}
|
|
if (!NIL_P(s5)) {
|
|
VALUE zone_to_diff(VALUE s);
|
|
cs5 = RSTRING_PTR(s5);
|
|
l5 = RSTRING_LEN(s5);
|
|
|
|
set_hash("zone", s5);
|
|
|
|
if (*cs5 == '[') {
|
|
char *buf = ALLOC_N(char, l5 + 1);
|
|
char *s1, *s2, *s3;
|
|
VALUE zone;
|
|
|
|
memcpy(buf, cs5, l5);
|
|
buf[l5 - 1] = '\0';
|
|
|
|
s1 = buf + 1;
|
|
s2 = index(buf, ':');
|
|
if (s2) {
|
|
*s2 = '\0';
|
|
s2++;
|
|
}
|
|
if (s2)
|
|
s3 = s2;
|
|
else
|
|
s3 = s1;
|
|
zone = rb_str_new2(s3);
|
|
set_hash("zone", zone);
|
|
if (isdigit(*s1))
|
|
*--s1 = '+';
|
|
set_hash("offset", zone_to_diff(rb_str_new2(s1)));
|
|
}
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_ddd(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"([-+]?)(\\d{2,14})"
|
|
"(?:"
|
|
"\\s*"
|
|
"t?"
|
|
"\\s*"
|
|
"(\\d{2,6})?(?:[,.](\\d*))?"
|
|
")?"
|
|
"(?:"
|
|
"\\s*"
|
|
"("
|
|
"z\\b"
|
|
"|"
|
|
"[-+]\\d{1,4}\\b"
|
|
"|"
|
|
"\\[[-+]?\\d[^\\]]*\\]"
|
|
")"
|
|
")?";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_ddd_cb);
|
|
}
|
|
|
|
static int
|
|
parse_bc_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE y;
|
|
|
|
y = ref_hash("year");
|
|
if (!NIL_P(y))
|
|
set_hash("year", f_add(f_negate(y), INT2FIX(1)));
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_bc(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] =
|
|
"\\b(bc\\b|bce\\b|b\\.c\\.|b\\.c\\.e\\.)";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_bc_cb);
|
|
}
|
|
|
|
static int
|
|
parse_frag_cb(VALUE m, VALUE hash)
|
|
{
|
|
VALUE s, n;
|
|
|
|
s = f_aref(m, INT2FIX(1));
|
|
|
|
if (!NIL_P(ref_hash("hour")) && NIL_P(ref_hash("mday"))) {
|
|
n = str2num(s);
|
|
if (f_ge_p(n, INT2FIX(1)) &&
|
|
f_le_p(n, INT2FIX(31)))
|
|
set_hash("mday", n);
|
|
}
|
|
if (!NIL_P(ref_hash("mday")) && NIL_P(ref_hash("hour"))) {
|
|
n = str2num(s);
|
|
if (f_ge_p(n, INT2FIX(0)) &&
|
|
f_le_p(n, INT2FIX(24)))
|
|
set_hash("hour", n);
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
parse_frag(VALUE str, VALUE hash)
|
|
{
|
|
static const char pat_source[] = "\\A\\s*(\\d{1,2})\\s*\\z";
|
|
static VALUE pat = Qnil;
|
|
|
|
REGCOMP_I(pat);
|
|
SUBS(str, pat, parse_frag_cb);
|
|
}
|
|
|
|
#define HAVE_ALPHA (1<<0)
|
|
#define HAVE_DIGIT (1<<1)
|
|
#define HAVE_DASH (1<<2)
|
|
#define HAVE_DOT (1<<3)
|
|
#define HAVE_SLASH (1<<4)
|
|
|
|
static unsigned
|
|
check_class(VALUE s)
|
|
{
|
|
unsigned flags;
|
|
long i;
|
|
|
|
flags = 0;
|
|
for (i = 0; i < RSTRING_LEN(s); i++) {
|
|
if (isalpha(RSTRING_PTR(s)[i]))
|
|
flags |= HAVE_ALPHA;
|
|
if (isdigit(RSTRING_PTR(s)[i]))
|
|
flags |= HAVE_DIGIT;
|
|
if (RSTRING_PTR(s)[i] == '-')
|
|
flags |= HAVE_DASH;
|
|
if (RSTRING_PTR(s)[i] == '.')
|
|
flags |= HAVE_DOT;
|
|
if (RSTRING_PTR(s)[i] == '/')
|
|
flags |= HAVE_SLASH;
|
|
}
|
|
return flags;
|
|
}
|
|
|
|
#define HAVE_ALPHA_P() (check_class(str) & HAVE_ALPHA)
|
|
#define HAVE_DIGIT_P() (check_class(str) & HAVE_DIGIT)
|
|
#define HAVE_ELEM_P(x) ((check_class(str) & (x)) == (x))
|
|
|
|
VALUE
|
|
date__parse(VALUE str, VALUE comp)
|
|
{
|
|
VALUE zone_to_diff(VALUE s);
|
|
VALUE backref, hash;
|
|
|
|
backref = rb_backref_get();
|
|
rb_match_busy(backref);
|
|
|
|
{
|
|
static const char pat_source[] = "[^-+',./:@[:alnum:]\\[\\]]+";
|
|
static VALUE pat = Qnil;
|
|
|
|
str = rb_str_dup(str);
|
|
REGCOMP_0(pat);
|
|
f_gsub_bang(str, pat, rb_str_new(" ", 1));
|
|
}
|
|
|
|
hash = rb_hash_new();
|
|
set_hash("_comp", comp);
|
|
|
|
if (HAVE_ELEM_P(HAVE_ALPHA))
|
|
parse_day(str, hash);
|
|
if (HAVE_ELEM_P(HAVE_DIGIT))
|
|
parse_time(str, hash);
|
|
|
|
if (HAVE_ELEM_P(HAVE_ALPHA|HAVE_DIGIT))
|
|
if (parse_eu(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_ALPHA|HAVE_DIGIT))
|
|
if (parse_us(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT|HAVE_DASH))
|
|
if (parse_iso(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT|HAVE_DOT))
|
|
if (parse_jis(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_ALPHA|HAVE_DIGIT|HAVE_DASH))
|
|
if (parse_vms(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT|HAVE_SLASH))
|
|
if (parse_sla(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT|HAVE_DOT))
|
|
if (parse_dot(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT))
|
|
if (parse_iso2(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT))
|
|
if (parse_year(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_ALPHA))
|
|
if (parse_mon(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT))
|
|
if (parse_mday(str, hash))
|
|
goto ok;
|
|
if (HAVE_ELEM_P(HAVE_DIGIT))
|
|
if (parse_ddd(str, hash))
|
|
goto ok;
|
|
|
|
ok:
|
|
if (HAVE_ELEM_P(HAVE_ALPHA))
|
|
parse_bc(str, hash);
|
|
if (HAVE_ELEM_P(HAVE_DIGIT))
|
|
parse_frag(str, hash);
|
|
|
|
{
|
|
if (RTEST(ref_hash("_comp"))) {
|
|
VALUE y;
|
|
|
|
y = ref_hash("cwyear");
|
|
if (!NIL_P(y))
|
|
if (f_ge_p(y, INT2FIX(0)) && f_le_p(y, INT2FIX(99))) {
|
|
if (f_ge_p(y, INT2FIX(69)))
|
|
set_hash("cwyear", f_add(y, INT2FIX(1900)));
|
|
else
|
|
set_hash("cwyear", f_add(y, INT2FIX(2000)));
|
|
}
|
|
y = ref_hash("year");
|
|
if (!NIL_P(y))
|
|
if (f_ge_p(y, INT2FIX(0)) && f_le_p(y, INT2FIX(99))) {
|
|
if (f_ge_p(y, INT2FIX(69)))
|
|
set_hash("year", f_add(y, INT2FIX(1900)));
|
|
else
|
|
set_hash("year", f_add(y, INT2FIX(2000)));
|
|
}
|
|
}
|
|
}
|
|
|
|
del_hash("_comp");
|
|
|
|
{
|
|
VALUE zone = ref_hash("zone");
|
|
if (!NIL_P(zone) && NIL_P(ref_hash("offset")))
|
|
set_hash("offset", zone_to_diff(zone));
|
|
}
|
|
|
|
rb_backref_set(backref);
|
|
|
|
return hash;
|
|
}
|
|
|
|
/*
|
|
Local variables:
|
|
c-file-style: "ruby"
|
|
End:
|
|
*/
|