[270] | 1 | /*
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| 2 | ** string.c - String class
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| 3 | **
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| 4 | ** See Copyright Notice in mruby.h
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| 5 | */
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| 6 |
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| 7 | #include <float.h>
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| 8 | #include <limits.h>
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| 9 | #include <stddef.h>
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| 10 | #include <stdlib.h>
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| 11 | #include <string.h>
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| 12 | #include "mruby.h"
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| 13 | #include "mruby/array.h"
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| 14 | #include "mruby/class.h"
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| 15 | #include "mruby/range.h"
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| 16 | #include "mruby/string.h"
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| 17 | #include "mruby/re.h"
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| 18 |
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| 19 | typedef struct mrb_shared_string {
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| 20 | mrb_bool nofree : 1;
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| 21 | int refcnt;
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| 22 | char *ptr;
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| 23 | mrb_int len;
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| 24 | } mrb_shared_string;
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| 25 |
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| 26 | const char mrb_digitmap[] = "0123456789abcdefghijklmnopqrstuvwxyz";
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| 27 |
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| 28 | #define mrb_obj_alloc_string(mrb) ((struct RString*)mrb_obj_alloc((mrb), MRB_TT_STRING, (mrb)->string_class))
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| 29 |
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| 30 | static struct RString*
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| 31 | str_new_static(mrb_state *mrb, const char *p, size_t len)
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| 32 | {
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| 33 | struct RString *s;
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| 34 |
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| 35 | if (len >= MRB_INT_MAX) {
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| 36 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string size too big");
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| 37 | }
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| 38 | s = mrb_obj_alloc_string(mrb);
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| 39 | s->as.heap.len = len;
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| 40 | s->as.heap.aux.capa = 0; /* nofree */
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| 41 | s->as.heap.ptr = (char *)p;
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| 42 | s->flags = MRB_STR_NOFREE;
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| 43 |
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| 44 | return s;
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| 45 | }
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| 46 |
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| 47 | static struct RString*
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| 48 | str_new(mrb_state *mrb, const char *p, size_t len)
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| 49 | {
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| 50 | struct RString *s;
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| 51 |
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| 52 | if (p && mrb_ro_data_p(p)) {
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| 53 | return str_new_static(mrb, p, len);
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| 54 | }
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| 55 | s = mrb_obj_alloc_string(mrb);
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| 56 | if (len < RSTRING_EMBED_LEN_MAX) {
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| 57 | RSTR_SET_EMBED_FLAG(s);
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| 58 | RSTR_SET_EMBED_LEN(s, len);
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| 59 | if (p) {
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| 60 | memcpy(s->as.ary, p, len);
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| 61 | }
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| 62 | } else {
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| 63 | if (len >= MRB_INT_MAX) {
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| 64 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string size too big");
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| 65 | }
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| 66 | s->as.heap.len = len;
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| 67 | s->as.heap.aux.capa = len;
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| 68 | s->as.heap.ptr = (char *)mrb_malloc(mrb, len+1);
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| 69 | if (p) {
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| 70 | memcpy(s->as.heap.ptr, p, len);
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| 71 | }
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| 72 | }
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| 73 | RSTR_PTR(s)[len] = '\0';
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| 74 | return s;
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| 75 | }
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| 76 |
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| 77 | static inline void
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| 78 | str_with_class(mrb_state *mrb, struct RString *s, mrb_value obj)
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| 79 | {
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| 80 | s->c = mrb_str_ptr(obj)->c;
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| 81 | }
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| 82 |
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| 83 | static mrb_value
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| 84 | mrb_str_new_empty(mrb_state *mrb, mrb_value str)
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| 85 | {
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| 86 | struct RString *s = str_new(mrb, 0, 0);
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| 87 |
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| 88 | str_with_class(mrb, s, str);
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| 89 | return mrb_obj_value(s);
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| 90 | }
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| 91 |
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| 92 | #ifndef MRB_STR_BUF_MIN_SIZE
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| 93 | # define MRB_STR_BUF_MIN_SIZE 128
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| 94 | #endif
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| 95 |
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| 96 | MRB_API mrb_value
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| 97 | mrb_str_buf_new(mrb_state *mrb, size_t capa)
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| 98 | {
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| 99 | struct RString *s;
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| 100 |
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| 101 | s = mrb_obj_alloc_string(mrb);
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| 102 |
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| 103 | if (capa >= MRB_INT_MAX) {
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| 104 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string capacity size too big");
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| 105 | }
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| 106 | if (capa < MRB_STR_BUF_MIN_SIZE) {
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| 107 | capa = MRB_STR_BUF_MIN_SIZE;
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| 108 | }
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| 109 | s->as.heap.len = 0;
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| 110 | s->as.heap.aux.capa = capa;
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| 111 | s->as.heap.ptr = (char *)mrb_malloc(mrb, capa+1);
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| 112 | RSTR_PTR(s)[0] = '\0';
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| 113 |
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| 114 | return mrb_obj_value(s);
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| 115 | }
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| 116 |
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| 117 | static inline void
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| 118 | resize_capa(mrb_state *mrb, struct RString *s, mrb_int capacity)
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| 119 | {
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| 120 | if (RSTR_EMBED_P(s)) {
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| 121 | if (RSTRING_EMBED_LEN_MAX < capacity) {
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| 122 | char *const tmp = (char *)mrb_malloc(mrb, capacity+1);
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| 123 | const mrb_int len = RSTR_EMBED_LEN(s);
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| 124 | memcpy(tmp, s->as.ary, len);
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| 125 | RSTR_UNSET_EMBED_FLAG(s);
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| 126 | s->as.heap.ptr = tmp;
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| 127 | s->as.heap.len = len;
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| 128 | s->as.heap.aux.capa = capacity;
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| 129 | }
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| 130 | }
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| 131 | else {
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| 132 | s->as.heap.ptr = (char *)mrb_realloc(mrb, RSTR_PTR(s), capacity+1);
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| 133 | s->as.heap.aux.capa = capacity;
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| 134 | }
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| 135 | }
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| 136 |
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| 137 | static void
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| 138 | str_buf_cat(mrb_state *mrb, struct RString *s, const char *ptr, size_t len)
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| 139 | {
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| 140 | size_t capa;
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| 141 | size_t total;
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| 142 | ptrdiff_t off = -1;
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| 143 |
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| 144 | if (len == 0) return;
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| 145 | mrb_str_modify(mrb, s);
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| 146 | if (ptr >= RSTR_PTR(s) && ptr <= RSTR_PTR(s) + (size_t)RSTR_LEN(s)) {
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| 147 | off = ptr - RSTR_PTR(s);
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| 148 | }
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| 149 |
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| 150 | if (RSTR_EMBED_P(s))
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| 151 | capa = RSTRING_EMBED_LEN_MAX;
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| 152 | else
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| 153 | capa = s->as.heap.aux.capa;
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| 154 |
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| 155 | if (RSTR_LEN(s) >= MRB_INT_MAX - (mrb_int)len) {
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| 156 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string size too big");
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| 157 | }
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| 158 | total = RSTR_LEN(s)+len;
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| 159 | if (capa <= total) {
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| 160 | while (total > capa) {
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| 161 | if (capa + 1 >= MRB_INT_MAX / 2) {
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| 162 | capa = (total + 4095) / 4096;
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| 163 | break;
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| 164 | }
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| 165 | capa = (capa + 1) * 2;
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| 166 | }
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| 167 | resize_capa(mrb, s, capa);
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| 168 | }
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| 169 | if (off != -1) {
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| 170 | ptr = RSTR_PTR(s) + off;
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| 171 | }
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| 172 | memcpy(RSTR_PTR(s) + RSTR_LEN(s), ptr, len);
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| 173 | mrb_assert_int_fit(size_t, total, mrb_int, MRB_INT_MAX);
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| 174 | RSTR_SET_LEN(s, total);
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| 175 | RSTR_PTR(s)[total] = '\0'; /* sentinel */
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| 176 | }
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| 177 |
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| 178 | MRB_API mrb_value
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| 179 | mrb_str_new(mrb_state *mrb, const char *p, size_t len)
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| 180 | {
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| 181 | return mrb_obj_value(str_new(mrb, p, len));
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| 182 | }
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| 183 |
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| 184 | /*
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| 185 | * call-seq: (Caution! NULL string)
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| 186 | * String.new(str="") => new_str
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| 187 | *
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| 188 | * Returns a new string object containing a copy of <i>str</i>.
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| 189 | */
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| 190 |
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| 191 | MRB_API mrb_value
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| 192 | mrb_str_new_cstr(mrb_state *mrb, const char *p)
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| 193 | {
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| 194 | struct RString *s;
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| 195 | size_t len;
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| 196 |
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| 197 | if (p) {
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| 198 | len = strlen(p);
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| 199 | }
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| 200 | else {
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| 201 | len = 0;
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| 202 | }
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| 203 |
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| 204 | s = str_new(mrb, p, len);
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| 205 |
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| 206 | return mrb_obj_value(s);
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| 207 | }
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| 208 |
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| 209 | MRB_API mrb_value
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| 210 | mrb_str_new_static(mrb_state *mrb, const char *p, size_t len)
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| 211 | {
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| 212 | struct RString *s = str_new_static(mrb, p, len);
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| 213 | return mrb_obj_value(s);
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| 214 | }
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| 215 |
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| 216 | static void
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| 217 | str_decref(mrb_state *mrb, mrb_shared_string *shared)
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| 218 | {
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| 219 | shared->refcnt--;
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| 220 | if (shared->refcnt == 0) {
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| 221 | if (!shared->nofree) {
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| 222 | mrb_free(mrb, shared->ptr);
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| 223 | }
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| 224 | mrb_free(mrb, shared);
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| 225 | }
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| 226 | }
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| 227 |
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| 228 | void
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| 229 | mrb_gc_free_str(mrb_state *mrb, struct RString *str)
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| 230 | {
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| 231 | if (RSTR_EMBED_P(str))
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| 232 | /* no code */;
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| 233 | else if (RSTR_SHARED_P(str))
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| 234 | str_decref(mrb, str->as.heap.aux.shared);
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| 235 | else if (!RSTR_NOFREE_P(str))
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| 236 | mrb_free(mrb, str->as.heap.ptr);
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| 237 | }
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| 238 |
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| 239 | #ifdef MRB_UTF8_STRING
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| 240 | static const char utf8len_codepage[256] =
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| 241 | {
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| 242 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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| 243 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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| 244 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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| 245 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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| 246 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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| 247 | 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
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| 248 | 2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
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| 249 | 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,4,4,4,4,4,1,1,1,1,1,1,1,1,1,1,1,
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| 250 | };
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| 251 |
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| 252 | static mrb_int
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| 253 | utf8len(const char* p, const char* e)
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| 254 | {
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| 255 | mrb_int len;
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| 256 | mrb_int i;
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| 257 |
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| 258 | len = utf8len_codepage[(unsigned char)*p];
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| 259 | if (p + len > e) return 1;
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| 260 | for (i = 1; i < len; ++i)
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| 261 | if ((p[i] & 0xc0) != 0x80)
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| 262 | return 1;
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| 263 | return len;
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| 264 | }
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| 265 |
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| 266 | static mrb_int
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| 267 | utf8_strlen(mrb_value str, mrb_int len)
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| 268 | {
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| 269 | mrb_int total = 0;
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| 270 | char* p = RSTRING_PTR(str);
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| 271 | char* e = p;
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| 272 | e += len < 0 ? RSTRING_LEN(str) : len;
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| 273 | while (p<e) {
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| 274 | p += utf8len(p, e);
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| 275 | total++;
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| 276 | }
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| 277 | return total;
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| 278 | }
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| 279 |
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| 280 | #define RSTRING_CHAR_LEN(s) utf8_strlen(s, -1)
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| 281 |
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| 282 | /* map character index to byte offset index */
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| 283 | static mrb_int
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| 284 | chars2bytes(mrb_value s, mrb_int off, mrb_int idx)
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| 285 | {
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| 286 | mrb_int i, b, n;
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| 287 | const char *p = RSTRING_PTR(s) + off;
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| 288 | const char *e = RSTRING_END(s);
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| 289 |
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| 290 | for (b=i=0; p<e && i<idx; i++) {
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| 291 | n = utf8len(p, e);
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| 292 | b += n;
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| 293 | p += n;
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| 294 | }
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| 295 | return b;
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| 296 | }
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| 297 |
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| 298 | /* map byte offset to character index */
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| 299 | static mrb_int
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| 300 | bytes2chars(char *p, mrb_int bi)
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| 301 | {
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| 302 | mrb_int i, b, n;
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| 303 |
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| 304 | for (b=i=0; b<bi; i++) {
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| 305 | n = utf8len(p, p+bi);
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| 306 | b += n;
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| 307 | p += n;
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| 308 | }
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| 309 | return i;
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| 310 | }
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| 311 |
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| 312 | #else
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| 313 | #define RSTRING_CHAR_LEN(s) RSTRING_LEN(s)
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| 314 | #define chars2bytes(p, off, ci) (ci)
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| 315 | #define bytes2chars(p, bi) (bi)
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| 316 | #endif
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| 317 |
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| 318 | static inline mrb_int
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| 319 | mrb_memsearch_qs(const unsigned char *xs, mrb_int m, const unsigned char *ys, mrb_int n)
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| 320 | {
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| 321 | const unsigned char *x = xs, *xe = xs + m;
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| 322 | const unsigned char *y = ys;
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| 323 | int i, qstable[256];
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| 324 |
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| 325 | /* Preprocessing */
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| 326 | for (i = 0; i < 256; ++i)
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| 327 | qstable[i] = m + 1;
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| 328 | for (; x < xe; ++x)
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| 329 | qstable[*x] = xe - x;
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| 330 | /* Searching */
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| 331 | for (; y + m <= ys + n; y += *(qstable + y[m])) {
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| 332 | if (*xs == *y && memcmp(xs, y, m) == 0)
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| 333 | return y - ys;
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| 334 | }
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| 335 | return -1;
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| 336 | }
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| 337 |
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| 338 | static mrb_int
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| 339 | mrb_memsearch(const void *x0, mrb_int m, const void *y0, mrb_int n)
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| 340 | {
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| 341 | const unsigned char *x = (const unsigned char *)x0, *y = (const unsigned char *)y0;
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| 342 |
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| 343 | if (m > n) return -1;
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| 344 | else if (m == n) {
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| 345 | return memcmp(x0, y0, m) == 0 ? 0 : -1;
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| 346 | }
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| 347 | else if (m < 1) {
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| 348 | return 0;
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| 349 | }
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| 350 | else if (m == 1) {
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| 351 | const unsigned char *ys = y, *ye = ys + n;
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| 352 | for (; y < ye; ++y) {
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| 353 | if (*x == *y)
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| 354 | return y - ys;
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| 355 | }
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| 356 | return -1;
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| 357 | }
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| 358 | return mrb_memsearch_qs((const unsigned char *)x0, m, (const unsigned char *)y0, n);
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| 359 | }
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| 360 |
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| 361 | static void
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| 362 | str_make_shared(mrb_state *mrb, struct RString *s)
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| 363 | {
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| 364 | if (!RSTR_SHARED_P(s)) {
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| 365 | mrb_shared_string *shared = (mrb_shared_string *)mrb_malloc(mrb, sizeof(mrb_shared_string));
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| 366 |
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| 367 | shared->refcnt = 1;
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| 368 | if (RSTR_EMBED_P(s)) {
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| 369 | const mrb_int len = RSTR_EMBED_LEN(s);
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| 370 | char *const tmp = (char *)mrb_malloc(mrb, len+1);
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| 371 | memcpy(tmp, s->as.ary, len);
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| 372 | tmp[len] = '\0';
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| 373 | RSTR_UNSET_EMBED_FLAG(s);
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| 374 | s->as.heap.ptr = tmp;
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| 375 | s->as.heap.len = len;
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| 376 | shared->nofree = FALSE;
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| 377 | shared->ptr = s->as.heap.ptr;
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| 378 | }
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| 379 | else if (RSTR_NOFREE_P(s)) {
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| 380 | shared->nofree = TRUE;
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| 381 | shared->ptr = s->as.heap.ptr;
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| 382 | RSTR_UNSET_NOFREE_FLAG(s);
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| 383 | }
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| 384 | else {
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| 385 | shared->nofree = FALSE;
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| 386 | if (s->as.heap.aux.capa > s->as.heap.len) {
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| 387 | s->as.heap.ptr = shared->ptr = (char *)mrb_realloc(mrb, s->as.heap.ptr, s->as.heap.len+1);
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| 388 | }
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| 389 | else {
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| 390 | shared->ptr = s->as.heap.ptr;
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| 391 | }
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| 392 | }
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| 393 | shared->len = s->as.heap.len;
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| 394 | s->as.heap.aux.shared = shared;
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| 395 | RSTR_SET_SHARED_FLAG(s);
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| 396 | }
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| 397 | }
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| 398 |
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| 399 | static mrb_value
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| 400 | byte_subseq(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len)
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| 401 | {
|
---|
| 402 | struct RString *orig, *s;
|
---|
| 403 | mrb_shared_string *shared;
|
---|
| 404 |
|
---|
| 405 | orig = mrb_str_ptr(str);
|
---|
| 406 | if (RSTR_EMBED_P(orig)) {
|
---|
| 407 | s = str_new(mrb, orig->as.ary+beg, len);
|
---|
| 408 | }
|
---|
| 409 | else {
|
---|
| 410 | str_make_shared(mrb, orig);
|
---|
| 411 | shared = orig->as.heap.aux.shared;
|
---|
| 412 | s = mrb_obj_alloc_string(mrb);
|
---|
| 413 | s->as.heap.ptr = orig->as.heap.ptr + beg;
|
---|
| 414 | s->as.heap.len = len;
|
---|
| 415 | s->as.heap.aux.shared = shared;
|
---|
| 416 | RSTR_SET_SHARED_FLAG(s);
|
---|
| 417 | shared->refcnt++;
|
---|
| 418 | }
|
---|
| 419 |
|
---|
| 420 | return mrb_obj_value(s);
|
---|
| 421 | }
|
---|
| 422 | #ifdef MRB_UTF8_STRING
|
---|
| 423 | static inline mrb_value
|
---|
| 424 | str_subseq(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len)
|
---|
| 425 | {
|
---|
| 426 | beg = chars2bytes(str, 0, beg);
|
---|
| 427 | len = chars2bytes(str, beg, len);
|
---|
| 428 |
|
---|
| 429 | return byte_subseq(mrb, str, beg, len);
|
---|
| 430 | }
|
---|
| 431 | #else
|
---|
| 432 | #define str_subseq(mrb, str, beg, len) byte_subseq(mrb, str, beg, len)
|
---|
| 433 | #endif
|
---|
| 434 |
|
---|
| 435 | static mrb_value
|
---|
| 436 | str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len)
|
---|
| 437 | {
|
---|
| 438 | mrb_int clen = RSTRING_CHAR_LEN(str);
|
---|
| 439 |
|
---|
| 440 | if (len < 0) return mrb_nil_value();
|
---|
| 441 | if (clen == 0) {
|
---|
| 442 | len = 0;
|
---|
| 443 | }
|
---|
| 444 | else if (beg < 0) {
|
---|
| 445 | beg = clen + beg;
|
---|
| 446 | }
|
---|
| 447 | if (beg > clen) return mrb_nil_value();
|
---|
| 448 | if (beg < 0) {
|
---|
| 449 | beg += clen;
|
---|
| 450 | if (beg < 0) return mrb_nil_value();
|
---|
| 451 | }
|
---|
| 452 | if (beg + len > clen)
|
---|
| 453 | len = clen - beg;
|
---|
| 454 | if (len <= 0) {
|
---|
| 455 | len = 0;
|
---|
| 456 | }
|
---|
| 457 | return str_subseq(mrb, str, beg, len);
|
---|
| 458 | }
|
---|
| 459 |
|
---|
| 460 | static mrb_int
|
---|
| 461 | str_index(mrb_state *mrb, mrb_value str, mrb_value sub, mrb_int offset)
|
---|
| 462 | {
|
---|
| 463 | mrb_int pos;
|
---|
| 464 | char *s, *sptr;
|
---|
| 465 | mrb_int len, slen;
|
---|
| 466 |
|
---|
| 467 | len = RSTRING_LEN(str);
|
---|
| 468 | slen = RSTRING_LEN(sub);
|
---|
| 469 | if (offset < 0) {
|
---|
| 470 | offset += len;
|
---|
| 471 | if (offset < 0) return -1;
|
---|
| 472 | }
|
---|
| 473 | if (len - offset < slen) return -1;
|
---|
| 474 | s = RSTRING_PTR(str);
|
---|
| 475 | if (offset) {
|
---|
| 476 | s += offset;
|
---|
| 477 | }
|
---|
| 478 | if (slen == 0) return offset;
|
---|
| 479 | /* need proceed one character at a time */
|
---|
| 480 | sptr = RSTRING_PTR(sub);
|
---|
| 481 | slen = RSTRING_LEN(sub);
|
---|
| 482 | len = RSTRING_LEN(str) - offset;
|
---|
| 483 | pos = mrb_memsearch(sptr, slen, s, len);
|
---|
| 484 | if (pos < 0) return pos;
|
---|
| 485 | return pos + offset;
|
---|
| 486 | }
|
---|
| 487 |
|
---|
| 488 | static void
|
---|
| 489 | check_frozen(mrb_state *mrb, struct RString *s)
|
---|
| 490 | {
|
---|
| 491 | if (RSTR_FROZEN_P(s)) {
|
---|
| 492 | mrb_raise(mrb, E_RUNTIME_ERROR, "can't modify frozen string");
|
---|
| 493 | }
|
---|
| 494 | }
|
---|
| 495 |
|
---|
| 496 | static mrb_value
|
---|
| 497 | str_replace(mrb_state *mrb, struct RString *s1, struct RString *s2)
|
---|
| 498 | {
|
---|
| 499 | long len;
|
---|
| 500 |
|
---|
| 501 | check_frozen(mrb, s1);
|
---|
| 502 | len = RSTR_LEN(s2);
|
---|
| 503 | if (RSTR_SHARED_P(s1)) {
|
---|
| 504 | str_decref(mrb, s1->as.heap.aux.shared);
|
---|
| 505 | }
|
---|
| 506 | else if (!RSTR_EMBED_P(s1) && !RSTR_NOFREE_P(s1)) {
|
---|
| 507 | mrb_free(mrb, s1->as.heap.ptr);
|
---|
| 508 | }
|
---|
| 509 |
|
---|
| 510 | RSTR_UNSET_NOFREE_FLAG(s1);
|
---|
| 511 |
|
---|
| 512 | if (RSTR_SHARED_P(s2)) {
|
---|
| 513 | L_SHARE:
|
---|
| 514 | RSTR_UNSET_EMBED_FLAG(s1);
|
---|
| 515 | s1->as.heap.ptr = s2->as.heap.ptr;
|
---|
| 516 | s1->as.heap.len = len;
|
---|
| 517 | s1->as.heap.aux.shared = s2->as.heap.aux.shared;
|
---|
| 518 | RSTR_SET_SHARED_FLAG(s1);
|
---|
| 519 | s1->as.heap.aux.shared->refcnt++;
|
---|
| 520 | }
|
---|
| 521 | else {
|
---|
| 522 | if (len <= RSTRING_EMBED_LEN_MAX) {
|
---|
| 523 | RSTR_UNSET_SHARED_FLAG(s1);
|
---|
| 524 | RSTR_SET_EMBED_FLAG(s1);
|
---|
| 525 | memcpy(s1->as.ary, RSTR_PTR(s2), len);
|
---|
| 526 | RSTR_SET_EMBED_LEN(s1, len);
|
---|
| 527 | }
|
---|
| 528 | else {
|
---|
| 529 | str_make_shared(mrb, s2);
|
---|
| 530 | goto L_SHARE;
|
---|
| 531 | }
|
---|
| 532 | }
|
---|
| 533 |
|
---|
| 534 | return mrb_obj_value(s1);
|
---|
| 535 | }
|
---|
| 536 |
|
---|
| 537 | static mrb_int
|
---|
| 538 | str_rindex(mrb_state *mrb, mrb_value str, mrb_value sub, mrb_int pos)
|
---|
| 539 | {
|
---|
| 540 | char *s, *sbeg, *t;
|
---|
| 541 | struct RString *ps = mrb_str_ptr(str);
|
---|
| 542 | mrb_int len = RSTRING_LEN(sub);
|
---|
| 543 |
|
---|
| 544 | /* substring longer than string */
|
---|
| 545 | if (RSTR_LEN(ps) < len) return -1;
|
---|
| 546 | if (RSTR_LEN(ps) - pos < len) {
|
---|
| 547 | pos = RSTR_LEN(ps) - len;
|
---|
| 548 | }
|
---|
| 549 | sbeg = RSTR_PTR(ps);
|
---|
| 550 | s = RSTR_PTR(ps) + pos;
|
---|
| 551 | t = RSTRING_PTR(sub);
|
---|
| 552 | if (len) {
|
---|
| 553 | while (sbeg <= s) {
|
---|
| 554 | if (memcmp(s, t, len) == 0) {
|
---|
| 555 | return s - RSTR_PTR(ps);
|
---|
| 556 | }
|
---|
| 557 | s--;
|
---|
| 558 | }
|
---|
| 559 | return -1;
|
---|
| 560 | }
|
---|
| 561 | else {
|
---|
| 562 | return pos;
|
---|
| 563 | }
|
---|
| 564 | }
|
---|
| 565 |
|
---|
| 566 | MRB_API mrb_int
|
---|
| 567 | mrb_str_strlen(mrb_state *mrb, struct RString *s)
|
---|
| 568 | {
|
---|
| 569 | mrb_int i, max = RSTR_LEN(s);
|
---|
| 570 | char *p = RSTR_PTR(s);
|
---|
| 571 |
|
---|
| 572 | if (!p) return 0;
|
---|
| 573 | for (i=0; i<max; i++) {
|
---|
| 574 | if (p[i] == '\0') {
|
---|
| 575 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string contains null byte");
|
---|
| 576 | }
|
---|
| 577 | }
|
---|
| 578 | return max;
|
---|
| 579 | }
|
---|
| 580 |
|
---|
| 581 | #ifdef _WIN32
|
---|
| 582 | #include <windows.h>
|
---|
| 583 |
|
---|
| 584 | char*
|
---|
| 585 | mrb_utf8_from_locale(const char *str, size_t len)
|
---|
| 586 | {
|
---|
| 587 | wchar_t* wcsp;
|
---|
| 588 | char* mbsp;
|
---|
| 589 | size_t mbssize, wcssize;
|
---|
| 590 |
|
---|
| 591 | if (len == 0)
|
---|
| 592 | return strdup("");
|
---|
| 593 | if (len == -1)
|
---|
| 594 | len = strlen(str);
|
---|
| 595 | wcssize = MultiByteToWideChar(GetACP(), 0, str, len, NULL, 0);
|
---|
| 596 | wcsp = (wchar_t*) malloc((wcssize + 1) * sizeof(wchar_t));
|
---|
| 597 | if (!wcsp)
|
---|
| 598 | return NULL;
|
---|
| 599 | wcssize = MultiByteToWideChar(GetACP(), 0, str, len, wcsp, wcssize + 1);
|
---|
| 600 | wcsp[wcssize] = 0;
|
---|
| 601 |
|
---|
| 602 | mbssize = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR) wcsp, -1, NULL, 0, NULL, NULL);
|
---|
| 603 | mbsp = (char*) malloc((mbssize + 1));
|
---|
| 604 | if (!mbsp) {
|
---|
| 605 | free(wcsp);
|
---|
| 606 | return NULL;
|
---|
| 607 | }
|
---|
| 608 | mbssize = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR) wcsp, -1, mbsp, mbssize, NULL, NULL);
|
---|
| 609 | mbsp[mbssize] = 0;
|
---|
| 610 | free(wcsp);
|
---|
| 611 | return mbsp;
|
---|
| 612 | }
|
---|
| 613 |
|
---|
| 614 | char*
|
---|
| 615 | mrb_locale_from_utf8(const char *utf8, size_t len)
|
---|
| 616 | {
|
---|
| 617 | wchar_t* wcsp;
|
---|
| 618 | char* mbsp;
|
---|
| 619 | size_t mbssize, wcssize;
|
---|
| 620 |
|
---|
| 621 | if (len == 0)
|
---|
| 622 | return strdup("");
|
---|
| 623 | if (len == -1)
|
---|
| 624 | len = strlen(utf8);
|
---|
| 625 | wcssize = MultiByteToWideChar(CP_UTF8, 0, utf8, len, NULL, 0);
|
---|
| 626 | wcsp = (wchar_t*) malloc((wcssize + 1) * sizeof(wchar_t));
|
---|
| 627 | if (!wcsp)
|
---|
| 628 | return NULL;
|
---|
| 629 | wcssize = MultiByteToWideChar(CP_UTF8, 0, utf8, len, wcsp, wcssize + 1);
|
---|
| 630 | wcsp[wcssize] = 0;
|
---|
| 631 | mbssize = WideCharToMultiByte(GetACP(), 0, (LPCWSTR) wcsp, -1, NULL, 0, NULL, NULL);
|
---|
| 632 | mbsp = (char*) malloc((mbssize + 1));
|
---|
| 633 | if (!mbsp) {
|
---|
| 634 | free(wcsp);
|
---|
| 635 | return NULL;
|
---|
| 636 | }
|
---|
| 637 | mbssize = WideCharToMultiByte(GetACP(), 0, (LPCWSTR) wcsp, -1, mbsp, mbssize, NULL, NULL);
|
---|
| 638 | mbsp[mbssize] = 0;
|
---|
| 639 | free(wcsp);
|
---|
| 640 | return mbsp;
|
---|
| 641 | }
|
---|
| 642 | #endif
|
---|
| 643 |
|
---|
| 644 | MRB_API void
|
---|
| 645 | mrb_str_modify(mrb_state *mrb, struct RString *s)
|
---|
| 646 | {
|
---|
| 647 | check_frozen(mrb, s);
|
---|
| 648 | if (RSTR_SHARED_P(s)) {
|
---|
| 649 | mrb_shared_string *shared = s->as.heap.aux.shared;
|
---|
| 650 |
|
---|
| 651 | if (shared->refcnt == 1 && s->as.heap.ptr == shared->ptr) {
|
---|
| 652 | s->as.heap.ptr = shared->ptr;
|
---|
| 653 | s->as.heap.aux.capa = shared->len;
|
---|
| 654 | RSTR_PTR(s)[s->as.heap.len] = '\0';
|
---|
| 655 | mrb_free(mrb, shared);
|
---|
| 656 | }
|
---|
| 657 | else {
|
---|
| 658 | char *ptr, *p;
|
---|
| 659 | mrb_int len;
|
---|
| 660 |
|
---|
| 661 | p = RSTR_PTR(s);
|
---|
| 662 | len = s->as.heap.len;
|
---|
| 663 | ptr = (char *)mrb_malloc(mrb, (size_t)len + 1);
|
---|
| 664 | if (p) {
|
---|
| 665 | memcpy(ptr, p, len);
|
---|
| 666 | }
|
---|
| 667 | ptr[len] = '\0';
|
---|
| 668 | s->as.heap.ptr = ptr;
|
---|
| 669 | s->as.heap.aux.capa = len;
|
---|
| 670 | str_decref(mrb, shared);
|
---|
| 671 | }
|
---|
| 672 | RSTR_UNSET_SHARED_FLAG(s);
|
---|
| 673 | return;
|
---|
| 674 | }
|
---|
| 675 | if (RSTR_NOFREE_P(s)) {
|
---|
| 676 | char *p = s->as.heap.ptr;
|
---|
| 677 |
|
---|
| 678 | s->as.heap.ptr = (char *)mrb_malloc(mrb, (size_t)s->as.heap.len+1);
|
---|
| 679 | if (p) {
|
---|
| 680 | memcpy(RSTR_PTR(s), p, s->as.heap.len);
|
---|
| 681 | }
|
---|
| 682 | RSTR_PTR(s)[s->as.heap.len] = '\0';
|
---|
| 683 | s->as.heap.aux.capa = s->as.heap.len;
|
---|
| 684 | RSTR_UNSET_NOFREE_FLAG(s);
|
---|
| 685 | return;
|
---|
| 686 | }
|
---|
| 687 | }
|
---|
| 688 |
|
---|
| 689 | static mrb_value
|
---|
| 690 | mrb_str_freeze(mrb_state *mrb, mrb_value str)
|
---|
| 691 | {
|
---|
| 692 | struct RString *s = mrb_str_ptr(str);
|
---|
| 693 |
|
---|
| 694 | RSTR_SET_FROZEN_FLAG(s);
|
---|
| 695 | return str;
|
---|
| 696 | }
|
---|
| 697 |
|
---|
| 698 | MRB_API mrb_value
|
---|
| 699 | mrb_str_resize(mrb_state *mrb, mrb_value str, mrb_int len)
|
---|
| 700 | {
|
---|
| 701 | mrb_int slen;
|
---|
| 702 | struct RString *s = mrb_str_ptr(str);
|
---|
| 703 |
|
---|
| 704 | mrb_str_modify(mrb, s);
|
---|
| 705 | slen = RSTR_LEN(s);
|
---|
| 706 | if (len != slen) {
|
---|
| 707 | if (slen < len || slen - len > 256) {
|
---|
| 708 | resize_capa(mrb, s, len);
|
---|
| 709 | }
|
---|
| 710 | RSTR_SET_LEN(s, len);
|
---|
| 711 | RSTR_PTR(s)[len] = '\0'; /* sentinel */
|
---|
| 712 | }
|
---|
| 713 | return str;
|
---|
| 714 | }
|
---|
| 715 |
|
---|
| 716 | MRB_API char*
|
---|
| 717 | mrb_str_to_cstr(mrb_state *mrb, mrb_value str0)
|
---|
| 718 | {
|
---|
| 719 | struct RString *s;
|
---|
| 720 |
|
---|
| 721 | if (!mrb_string_p(str0)) {
|
---|
| 722 | mrb_raise(mrb, E_TYPE_ERROR, "expected String");
|
---|
| 723 | }
|
---|
| 724 |
|
---|
| 725 | s = str_new(mrb, RSTRING_PTR(str0), RSTRING_LEN(str0));
|
---|
| 726 | if ((strlen(RSTR_PTR(s)) ^ RSTR_LEN(s)) != 0) {
|
---|
| 727 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string contains null byte");
|
---|
| 728 | }
|
---|
| 729 | return RSTR_PTR(s);
|
---|
| 730 | }
|
---|
| 731 |
|
---|
| 732 | /*
|
---|
| 733 | * call-seq: (Caution! String("abcd") change)
|
---|
| 734 | * String("abcdefg") = String("abcd") + String("efg")
|
---|
| 735 | *
|
---|
| 736 | * Returns a new string object containing a copy of <i>str</i>.
|
---|
| 737 | */
|
---|
| 738 | MRB_API void
|
---|
| 739 | mrb_str_concat(mrb_state *mrb, mrb_value self, mrb_value other)
|
---|
| 740 | {
|
---|
| 741 | struct RString *s1 = mrb_str_ptr(self), *s2;
|
---|
| 742 | mrb_int len;
|
---|
| 743 |
|
---|
| 744 | mrb_str_modify(mrb, s1);
|
---|
| 745 | if (!mrb_string_p(other)) {
|
---|
| 746 | other = mrb_str_to_str(mrb, other);
|
---|
| 747 | }
|
---|
| 748 | s2 = mrb_str_ptr(other);
|
---|
| 749 | len = RSTR_LEN(s1) + RSTR_LEN(s2);
|
---|
| 750 |
|
---|
| 751 | if (RSTRING_CAPA(self) < len) {
|
---|
| 752 | resize_capa(mrb, s1, len);
|
---|
| 753 | }
|
---|
| 754 | memcpy(RSTR_PTR(s1)+RSTR_LEN(s1), RSTR_PTR(s2), RSTR_LEN(s2));
|
---|
| 755 | RSTR_SET_LEN(s1, len);
|
---|
| 756 | RSTR_PTR(s1)[len] = '\0';
|
---|
| 757 | }
|
---|
| 758 |
|
---|
| 759 | /*
|
---|
| 760 | * call-seq: (Caution! String("abcd") remain)
|
---|
| 761 | * String("abcdefg") = String("abcd") + String("efg")
|
---|
| 762 | *
|
---|
| 763 | * Returns a new string object containing a copy of <i>str</i>.
|
---|
| 764 | */
|
---|
| 765 | MRB_API mrb_value
|
---|
| 766 | mrb_str_plus(mrb_state *mrb, mrb_value a, mrb_value b)
|
---|
| 767 | {
|
---|
| 768 | struct RString *s = mrb_str_ptr(a);
|
---|
| 769 | struct RString *s2 = mrb_str_ptr(b);
|
---|
| 770 | struct RString *t;
|
---|
| 771 |
|
---|
| 772 | t = str_new(mrb, 0, RSTR_LEN(s) + RSTR_LEN(s2));
|
---|
| 773 | memcpy(RSTR_PTR(t), RSTR_PTR(s), RSTR_LEN(s));
|
---|
| 774 | memcpy(RSTR_PTR(t) + RSTR_LEN(s), RSTR_PTR(s2), RSTR_LEN(s2));
|
---|
| 775 |
|
---|
| 776 | return mrb_obj_value(t);
|
---|
| 777 | }
|
---|
| 778 |
|
---|
| 779 | /* 15.2.10.5.2 */
|
---|
| 780 |
|
---|
| 781 | /*
|
---|
| 782 | * call-seq: (Caution! String("abcd") remain) for stack_argument
|
---|
| 783 | * String("abcdefg") = String("abcd") + String("efg")
|
---|
| 784 | *
|
---|
| 785 | * Returns a new string object containing a copy of <i>str</i>.
|
---|
| 786 | */
|
---|
| 787 | static mrb_value
|
---|
| 788 | mrb_str_plus_m(mrb_state *mrb, mrb_value self)
|
---|
| 789 | {
|
---|
| 790 | mrb_value str;
|
---|
| 791 |
|
---|
| 792 | mrb_get_args(mrb, "S", &str);
|
---|
| 793 | return mrb_str_plus(mrb, self, str);
|
---|
| 794 | }
|
---|
| 795 |
|
---|
| 796 | /* 15.2.10.5.26 */
|
---|
| 797 | /* 15.2.10.5.33 */
|
---|
| 798 | /*
|
---|
| 799 | * call-seq:
|
---|
| 800 | * "abcd".size => int
|
---|
| 801 | *
|
---|
| 802 | * Returns the length of string.
|
---|
| 803 | */
|
---|
| 804 | static mrb_value
|
---|
| 805 | mrb_str_size(mrb_state *mrb, mrb_value self)
|
---|
| 806 | {
|
---|
| 807 | mrb_int len = RSTRING_CHAR_LEN(self);
|
---|
| 808 | return mrb_fixnum_value(len);
|
---|
| 809 | }
|
---|
| 810 |
|
---|
| 811 | static mrb_value
|
---|
| 812 | mrb_str_bytesize(mrb_state *mrb, mrb_value self)
|
---|
| 813 | {
|
---|
| 814 | mrb_int len = RSTRING_LEN(self);
|
---|
| 815 | return mrb_fixnum_value(len);
|
---|
| 816 | }
|
---|
| 817 |
|
---|
| 818 | /* 15.2.10.5.1 */
|
---|
| 819 | /*
|
---|
| 820 | * call-seq:
|
---|
| 821 | * str * integer => new_str
|
---|
| 822 | *
|
---|
| 823 | * Copy---Returns a new <code>String</code> containing <i>integer</i> copies of
|
---|
| 824 | * the receiver.
|
---|
| 825 | *
|
---|
| 826 | * "Ho! " * 3 #=> "Ho! Ho! Ho! "
|
---|
| 827 | */
|
---|
| 828 | static mrb_value
|
---|
| 829 | mrb_str_times(mrb_state *mrb, mrb_value self)
|
---|
| 830 | {
|
---|
| 831 | mrb_int n,len,times;
|
---|
| 832 | struct RString *str2;
|
---|
| 833 | char *p;
|
---|
| 834 |
|
---|
| 835 | mrb_get_args(mrb, "i", ×);
|
---|
| 836 | if (times < 0) {
|
---|
| 837 | mrb_raise(mrb, E_ARGUMENT_ERROR, "negative argument");
|
---|
| 838 | }
|
---|
| 839 | if (times && MRB_INT_MAX / times < RSTRING_LEN(self)) {
|
---|
| 840 | mrb_raise(mrb, E_ARGUMENT_ERROR, "argument too big");
|
---|
| 841 | }
|
---|
| 842 |
|
---|
| 843 | len = RSTRING_LEN(self)*times;
|
---|
| 844 | str2 = str_new(mrb, 0, len);
|
---|
| 845 | str_with_class(mrb, str2, self);
|
---|
| 846 | p = RSTR_PTR(str2);
|
---|
| 847 | if (len > 0) {
|
---|
| 848 | n = RSTRING_LEN(self);
|
---|
| 849 | memcpy(p, RSTRING_PTR(self), n);
|
---|
| 850 | while (n <= len/2) {
|
---|
| 851 | memcpy(p + n, p, n);
|
---|
| 852 | n *= 2;
|
---|
| 853 | }
|
---|
| 854 | memcpy(p + n, p, len-n);
|
---|
| 855 | }
|
---|
| 856 | p[RSTR_LEN(str2)] = '\0';
|
---|
| 857 |
|
---|
| 858 | return mrb_obj_value(str2);
|
---|
| 859 | }
|
---|
| 860 | /* -------------------------------------------------------------- */
|
---|
| 861 |
|
---|
| 862 | #define lesser(a,b) (((a)>(b))?(b):(a))
|
---|
| 863 |
|
---|
| 864 | /* ---------------------------*/
|
---|
| 865 | /*
|
---|
| 866 | * call-seq:
|
---|
| 867 | * mrb_value str1 <=> mrb_value str2 => int
|
---|
| 868 | * > 1
|
---|
| 869 | * = 0
|
---|
| 870 | * < -1
|
---|
| 871 | */
|
---|
| 872 | MRB_API int
|
---|
| 873 | mrb_str_cmp(mrb_state *mrb, mrb_value str1, mrb_value str2)
|
---|
| 874 | {
|
---|
| 875 | mrb_int len;
|
---|
| 876 | mrb_int retval;
|
---|
| 877 | struct RString *s1 = mrb_str_ptr(str1);
|
---|
| 878 | struct RString *s2 = mrb_str_ptr(str2);
|
---|
| 879 |
|
---|
| 880 | len = lesser(RSTR_LEN(s1), RSTR_LEN(s2));
|
---|
| 881 | retval = memcmp(RSTR_PTR(s1), RSTR_PTR(s2), len);
|
---|
| 882 | if (retval == 0) {
|
---|
| 883 | if (RSTR_LEN(s1) == RSTR_LEN(s2)) return 0;
|
---|
| 884 | if (RSTR_LEN(s1) > RSTR_LEN(s2)) return 1;
|
---|
| 885 | return -1;
|
---|
| 886 | }
|
---|
| 887 | if (retval > 0) return 1;
|
---|
| 888 | return -1;
|
---|
| 889 | }
|
---|
| 890 |
|
---|
| 891 | /* 15.2.10.5.3 */
|
---|
| 892 |
|
---|
| 893 | /*
|
---|
| 894 | * call-seq:
|
---|
| 895 | * str <=> other_str => -1, 0, +1
|
---|
| 896 | *
|
---|
| 897 | * Comparison---Returns -1 if <i>other_str</i> is less than, 0 if
|
---|
| 898 | * <i>other_str</i> is equal to, and +1 if <i>other_str</i> is greater than
|
---|
| 899 | * <i>str</i>. If the strings are of different lengths, and the strings are
|
---|
| 900 | * equal when compared up to the shortest length, then the longer string is
|
---|
| 901 | * considered greater than the shorter one. If the variable <code>$=</code> is
|
---|
| 902 | * <code>false</code>, the comparison is based on comparing the binary values
|
---|
| 903 | * of each character in the string. In older versions of Ruby, setting
|
---|
| 904 | * <code>$=</code> allowed case-insensitive comparisons; this is now deprecated
|
---|
| 905 | * in favor of using <code>String#casecmp</code>.
|
---|
| 906 | *
|
---|
| 907 | * <code><=></code> is the basis for the methods <code><</code>,
|
---|
| 908 | * <code><=</code>, <code>></code>, <code>>=</code>, and <code>between?</code>,
|
---|
| 909 | * included from module <code>Comparable</code>. The method
|
---|
| 910 | * <code>String#==</code> does not use <code>Comparable#==</code>.
|
---|
| 911 | *
|
---|
| 912 | * "abcdef" <=> "abcde" #=> 1
|
---|
| 913 | * "abcdef" <=> "abcdef" #=> 0
|
---|
| 914 | * "abcdef" <=> "abcdefg" #=> -1
|
---|
| 915 | * "abcdef" <=> "ABCDEF" #=> 1
|
---|
| 916 | */
|
---|
| 917 | static mrb_value
|
---|
| 918 | mrb_str_cmp_m(mrb_state *mrb, mrb_value str1)
|
---|
| 919 | {
|
---|
| 920 | mrb_value str2;
|
---|
| 921 | mrb_int result;
|
---|
| 922 |
|
---|
| 923 | mrb_get_args(mrb, "o", &str2);
|
---|
| 924 | if (!mrb_string_p(str2)) {
|
---|
| 925 | if (!mrb_respond_to(mrb, str2, mrb_intern_lit(mrb, "to_s"))) {
|
---|
| 926 | return mrb_nil_value();
|
---|
| 927 | }
|
---|
| 928 | else if (!mrb_respond_to(mrb, str2, mrb_intern_lit(mrb, "<=>"))) {
|
---|
| 929 | return mrb_nil_value();
|
---|
| 930 | }
|
---|
| 931 | else {
|
---|
| 932 | mrb_value tmp = mrb_funcall(mrb, str2, "<=>", 1, str1);
|
---|
| 933 |
|
---|
| 934 | if (mrb_nil_p(tmp)) return mrb_nil_value();
|
---|
| 935 | if (!mrb_fixnum(tmp)) {
|
---|
| 936 | return mrb_funcall(mrb, mrb_fixnum_value(0), "-", 1, tmp);
|
---|
| 937 | }
|
---|
| 938 | result = -mrb_fixnum(tmp);
|
---|
| 939 | }
|
---|
| 940 | }
|
---|
| 941 | else {
|
---|
| 942 | result = mrb_str_cmp(mrb, str1, str2);
|
---|
| 943 | }
|
---|
| 944 | return mrb_fixnum_value(result);
|
---|
| 945 | }
|
---|
| 946 |
|
---|
| 947 | static mrb_bool
|
---|
| 948 | str_eql(mrb_state *mrb, const mrb_value str1, const mrb_value str2)
|
---|
| 949 | {
|
---|
| 950 | const mrb_int len = RSTRING_LEN(str1);
|
---|
| 951 |
|
---|
| 952 | if (len != RSTRING_LEN(str2)) return FALSE;
|
---|
| 953 | if (memcmp(RSTRING_PTR(str1), RSTRING_PTR(str2), (size_t)len) == 0)
|
---|
| 954 | return TRUE;
|
---|
| 955 | return FALSE;
|
---|
| 956 | }
|
---|
| 957 |
|
---|
| 958 | MRB_API mrb_bool
|
---|
| 959 | mrb_str_equal(mrb_state *mrb, mrb_value str1, mrb_value str2)
|
---|
| 960 | {
|
---|
| 961 | if (mrb_immediate_p(str2)) return FALSE;
|
---|
| 962 | if (!mrb_string_p(str2)) {
|
---|
| 963 | if (mrb_nil_p(str2)) return FALSE;
|
---|
| 964 | if (!mrb_respond_to(mrb, str2, mrb_intern_lit(mrb, "to_str"))) {
|
---|
| 965 | return FALSE;
|
---|
| 966 | }
|
---|
| 967 | str2 = mrb_funcall(mrb, str2, "to_str", 0);
|
---|
| 968 | return mrb_equal(mrb, str2, str1);
|
---|
| 969 | }
|
---|
| 970 | return str_eql(mrb, str1, str2);
|
---|
| 971 | }
|
---|
| 972 |
|
---|
| 973 | /* 15.2.10.5.4 */
|
---|
| 974 | /*
|
---|
| 975 | * call-seq:
|
---|
| 976 | * str == obj => true or false
|
---|
| 977 | *
|
---|
| 978 | * Equality---
|
---|
| 979 | * If <i>obj</i> is not a <code>String</code>, returns <code>false</code>.
|
---|
| 980 | * Otherwise, returns <code>false</code> or <code>true</code>
|
---|
| 981 | *
|
---|
| 982 | * caution:if <i>str</i> <code><=></code> <i>obj</i> returns zero.
|
---|
| 983 | */
|
---|
| 984 | static mrb_value
|
---|
| 985 | mrb_str_equal_m(mrb_state *mrb, mrb_value str1)
|
---|
| 986 | {
|
---|
| 987 | mrb_value str2;
|
---|
| 988 |
|
---|
| 989 | mrb_get_args(mrb, "o", &str2);
|
---|
| 990 |
|
---|
| 991 | return mrb_bool_value(mrb_str_equal(mrb, str1, str2));
|
---|
| 992 | }
|
---|
| 993 | /* ---------------------------------- */
|
---|
| 994 | MRB_API mrb_value
|
---|
| 995 | mrb_str_to_str(mrb_state *mrb, mrb_value str)
|
---|
| 996 | {
|
---|
| 997 | mrb_value s;
|
---|
| 998 |
|
---|
| 999 | if (!mrb_string_p(str)) {
|
---|
| 1000 | s = mrb_check_convert_type(mrb, str, MRB_TT_STRING, "String", "to_str");
|
---|
| 1001 | if (mrb_nil_p(s)) {
|
---|
| 1002 | s = mrb_convert_type(mrb, str, MRB_TT_STRING, "String", "to_s");
|
---|
| 1003 | }
|
---|
| 1004 | return s;
|
---|
| 1005 | }
|
---|
| 1006 | return str;
|
---|
| 1007 | }
|
---|
| 1008 |
|
---|
| 1009 | MRB_API const char*
|
---|
| 1010 | mrb_string_value_ptr(mrb_state *mrb, mrb_value ptr)
|
---|
| 1011 | {
|
---|
| 1012 | mrb_value str = mrb_str_to_str(mrb, ptr);
|
---|
| 1013 | return RSTRING_PTR(str);
|
---|
| 1014 | }
|
---|
| 1015 |
|
---|
| 1016 | void
|
---|
| 1017 | mrb_noregexp(mrb_state *mrb, mrb_value self)
|
---|
| 1018 | {
|
---|
| 1019 | mrb_raise(mrb, E_NOTIMP_ERROR, "Regexp class not implemented");
|
---|
| 1020 | }
|
---|
| 1021 |
|
---|
| 1022 | void
|
---|
| 1023 | mrb_regexp_check(mrb_state *mrb, mrb_value obj)
|
---|
| 1024 | {
|
---|
| 1025 | if (mrb_regexp_p(mrb, obj)) {
|
---|
| 1026 | mrb_noregexp(mrb, obj);
|
---|
| 1027 | }
|
---|
| 1028 | }
|
---|
| 1029 |
|
---|
| 1030 | MRB_API mrb_value
|
---|
| 1031 | mrb_str_dup(mrb_state *mrb, mrb_value str)
|
---|
| 1032 | {
|
---|
| 1033 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1034 | struct RString *dup = str_new(mrb, 0, 0);
|
---|
| 1035 |
|
---|
| 1036 | str_with_class(mrb, dup, str);
|
---|
| 1037 | return str_replace(mrb, dup, s);
|
---|
| 1038 | }
|
---|
| 1039 |
|
---|
| 1040 | static mrb_value
|
---|
| 1041 | mrb_str_aref(mrb_state *mrb, mrb_value str, mrb_value indx)
|
---|
| 1042 | {
|
---|
| 1043 | mrb_int idx;
|
---|
| 1044 |
|
---|
| 1045 | mrb_regexp_check(mrb, indx);
|
---|
| 1046 | switch (mrb_type(indx)) {
|
---|
| 1047 | case MRB_TT_FIXNUM:
|
---|
| 1048 | idx = mrb_fixnum(indx);
|
---|
| 1049 |
|
---|
| 1050 | num_index:
|
---|
| 1051 | str = str_substr(mrb, str, idx, 1);
|
---|
| 1052 | if (!mrb_nil_p(str) && RSTRING_LEN(str) == 0) return mrb_nil_value();
|
---|
| 1053 | return str;
|
---|
| 1054 |
|
---|
| 1055 | case MRB_TT_STRING:
|
---|
| 1056 | if (str_index(mrb, str, indx, 0) != -1)
|
---|
| 1057 | return mrb_str_dup(mrb, indx);
|
---|
| 1058 | return mrb_nil_value();
|
---|
| 1059 |
|
---|
| 1060 | case MRB_TT_RANGE:
|
---|
| 1061 | /* check if indx is Range */
|
---|
| 1062 | {
|
---|
| 1063 | mrb_int beg, len;
|
---|
| 1064 |
|
---|
| 1065 | len = RSTRING_CHAR_LEN(str);
|
---|
| 1066 | if (mrb_range_beg_len(mrb, indx, &beg, &len, len)) {
|
---|
| 1067 | return str_subseq(mrb, str, beg, len);
|
---|
| 1068 | }
|
---|
| 1069 | else {
|
---|
| 1070 | return mrb_nil_value();
|
---|
| 1071 | }
|
---|
| 1072 | }
|
---|
| 1073 | case MRB_TT_FLOAT:
|
---|
| 1074 | default:
|
---|
| 1075 | indx = mrb_Integer(mrb, indx);
|
---|
| 1076 | if (mrb_nil_p(indx)) {
|
---|
| 1077 | mrb_raise(mrb, E_TYPE_ERROR, "can't convert to Fixnum");
|
---|
| 1078 | }
|
---|
| 1079 | idx = mrb_fixnum(indx);
|
---|
| 1080 | goto num_index;
|
---|
| 1081 | }
|
---|
| 1082 | return mrb_nil_value(); /* not reached */
|
---|
| 1083 | }
|
---|
| 1084 |
|
---|
| 1085 | /* 15.2.10.5.6 */
|
---|
| 1086 | /* 15.2.10.5.34 */
|
---|
| 1087 | /*
|
---|
| 1088 | * call-seq:
|
---|
| 1089 | * str[fixnum] => fixnum or nil
|
---|
| 1090 | * str[fixnum, fixnum] => new_str or nil
|
---|
| 1091 | * str[range] => new_str or nil
|
---|
| 1092 | * str[regexp] => new_str or nil
|
---|
| 1093 | * str[regexp, fixnum] => new_str or nil
|
---|
| 1094 | * str[other_str] => new_str or nil
|
---|
| 1095 | * str.slice(fixnum) => fixnum or nil
|
---|
| 1096 | * str.slice(fixnum, fixnum) => new_str or nil
|
---|
| 1097 | * str.slice(range) => new_str or nil
|
---|
| 1098 | * str.slice(other_str) => new_str or nil
|
---|
| 1099 | *
|
---|
| 1100 | * Element Reference---If passed a single <code>Fixnum</code>, returns the code
|
---|
| 1101 | * of the character at that position. If passed two <code>Fixnum</code>
|
---|
| 1102 | * objects, returns a substring starting at the offset given by the first, and
|
---|
| 1103 | * a length given by the second. If given a range, a substring containing
|
---|
| 1104 | * characters at offsets given by the range is returned. In all three cases, if
|
---|
| 1105 | * an offset is negative, it is counted from the end of <i>str</i>. Returns
|
---|
| 1106 | * <code>nil</code> if the initial offset falls outside the string, the length
|
---|
| 1107 | * is negative, or the beginning of the range is greater than the end.
|
---|
| 1108 | *
|
---|
| 1109 | * If a <code>String</code> is given, that string is returned if it occurs in
|
---|
| 1110 | * <i>str</i>. In both cases, <code>nil</code> is returned if there is no
|
---|
| 1111 | * match.
|
---|
| 1112 | *
|
---|
| 1113 | * a = "hello there"
|
---|
| 1114 | * a[1] #=> 101(1.8.7) "e"(1.9.2)
|
---|
| 1115 | * a[1.1] #=> "e"(1.9.2)
|
---|
| 1116 | * a[1,3] #=> "ell"
|
---|
| 1117 | * a[1..3] #=> "ell"
|
---|
| 1118 | * a[-3,2] #=> "er"
|
---|
| 1119 | * a[-4..-2] #=> "her"
|
---|
| 1120 | * a[12..-1] #=> nil
|
---|
| 1121 | * a[-2..-4] #=> ""
|
---|
| 1122 | * a["lo"] #=> "lo"
|
---|
| 1123 | * a["bye"] #=> nil
|
---|
| 1124 | */
|
---|
| 1125 | static mrb_value
|
---|
| 1126 | mrb_str_aref_m(mrb_state *mrb, mrb_value str)
|
---|
| 1127 | {
|
---|
| 1128 | mrb_value a1, a2;
|
---|
| 1129 | int argc;
|
---|
| 1130 |
|
---|
| 1131 | argc = mrb_get_args(mrb, "o|o", &a1, &a2);
|
---|
| 1132 | if (argc == 2) {
|
---|
| 1133 | mrb_regexp_check(mrb, a1);
|
---|
| 1134 | return str_substr(mrb, str, mrb_fixnum(a1), mrb_fixnum(a2));
|
---|
| 1135 | }
|
---|
| 1136 | if (argc != 1) {
|
---|
| 1137 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "wrong number of arguments (%S for 1)", mrb_fixnum_value(argc));
|
---|
| 1138 | }
|
---|
| 1139 | return mrb_str_aref(mrb, str, a1);
|
---|
| 1140 | }
|
---|
| 1141 |
|
---|
| 1142 | /* 15.2.10.5.8 */
|
---|
| 1143 | /*
|
---|
| 1144 | * call-seq:
|
---|
| 1145 | * str.capitalize! => str or nil
|
---|
| 1146 | *
|
---|
| 1147 | * Modifies <i>str</i> by converting the first character to uppercase and the
|
---|
| 1148 | * remainder to lowercase. Returns <code>nil</code> if no changes are made.
|
---|
| 1149 | *
|
---|
| 1150 | * a = "hello"
|
---|
| 1151 | * a.capitalize! #=> "Hello"
|
---|
| 1152 | * a #=> "Hello"
|
---|
| 1153 | * a.capitalize! #=> nil
|
---|
| 1154 | */
|
---|
| 1155 | static mrb_value
|
---|
| 1156 | mrb_str_capitalize_bang(mrb_state *mrb, mrb_value str)
|
---|
| 1157 | {
|
---|
| 1158 | char *p, *pend;
|
---|
| 1159 | mrb_bool modify = FALSE;
|
---|
| 1160 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1161 |
|
---|
| 1162 | mrb_str_modify(mrb, s);
|
---|
| 1163 | if (RSTR_LEN(s) == 0 || !RSTR_PTR(s)) return mrb_nil_value();
|
---|
| 1164 | p = RSTR_PTR(s); pend = RSTR_PTR(s) + RSTR_LEN(s);
|
---|
| 1165 | if (ISLOWER(*p)) {
|
---|
| 1166 | *p = TOUPPER(*p);
|
---|
| 1167 | modify = TRUE;
|
---|
| 1168 | }
|
---|
| 1169 | while (++p < pend) {
|
---|
| 1170 | if (ISUPPER(*p)) {
|
---|
| 1171 | *p = TOLOWER(*p);
|
---|
| 1172 | modify = TRUE;
|
---|
| 1173 | }
|
---|
| 1174 | }
|
---|
| 1175 | if (modify) return str;
|
---|
| 1176 | return mrb_nil_value();
|
---|
| 1177 | }
|
---|
| 1178 |
|
---|
| 1179 | /* 15.2.10.5.7 */
|
---|
| 1180 | /*
|
---|
| 1181 | * call-seq:
|
---|
| 1182 | * str.capitalize => new_str
|
---|
| 1183 | *
|
---|
| 1184 | * Returns a copy of <i>str</i> with the first character converted to uppercase
|
---|
| 1185 | * and the remainder to lowercase.
|
---|
| 1186 | *
|
---|
| 1187 | * "hello".capitalize #=> "Hello"
|
---|
| 1188 | * "HELLO".capitalize #=> "Hello"
|
---|
| 1189 | * "123ABC".capitalize #=> "123abc"
|
---|
| 1190 | */
|
---|
| 1191 | static mrb_value
|
---|
| 1192 | mrb_str_capitalize(mrb_state *mrb, mrb_value self)
|
---|
| 1193 | {
|
---|
| 1194 | mrb_value str;
|
---|
| 1195 |
|
---|
| 1196 | str = mrb_str_dup(mrb, self);
|
---|
| 1197 | mrb_str_capitalize_bang(mrb, str);
|
---|
| 1198 | return str;
|
---|
| 1199 | }
|
---|
| 1200 |
|
---|
| 1201 | /* 15.2.10.5.10 */
|
---|
| 1202 | /*
|
---|
| 1203 | * call-seq:
|
---|
| 1204 | * str.chomp!(separator="\n") => str or nil
|
---|
| 1205 | *
|
---|
| 1206 | * Modifies <i>str</i> in place as described for <code>String#chomp</code>,
|
---|
| 1207 | * returning <i>str</i>, or <code>nil</code> if no modifications were made.
|
---|
| 1208 | */
|
---|
| 1209 | static mrb_value
|
---|
| 1210 | mrb_str_chomp_bang(mrb_state *mrb, mrb_value str)
|
---|
| 1211 | {
|
---|
| 1212 | mrb_value rs;
|
---|
| 1213 | mrb_int newline;
|
---|
| 1214 | char *p, *pp;
|
---|
| 1215 | mrb_int rslen;
|
---|
| 1216 | mrb_int len;
|
---|
| 1217 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1218 |
|
---|
| 1219 | mrb_str_modify(mrb, s);
|
---|
| 1220 | len = RSTR_LEN(s);
|
---|
| 1221 | if (mrb_get_args(mrb, "|S", &rs) == 0) {
|
---|
| 1222 | if (len == 0) return mrb_nil_value();
|
---|
| 1223 | smart_chomp:
|
---|
| 1224 | if (RSTR_PTR(s)[len-1] == '\n') {
|
---|
| 1225 | RSTR_SET_LEN(s, RSTR_LEN(s) - 1);
|
---|
| 1226 | if (RSTR_LEN(s) > 0 &&
|
---|
| 1227 | RSTR_PTR(s)[RSTR_LEN(s)-1] == '\r') {
|
---|
| 1228 | RSTR_SET_LEN(s, RSTR_LEN(s) - 1);
|
---|
| 1229 | }
|
---|
| 1230 | }
|
---|
| 1231 | else if (RSTR_PTR(s)[len-1] == '\r') {
|
---|
| 1232 | RSTR_SET_LEN(s, RSTR_LEN(s) - 1);
|
---|
| 1233 | }
|
---|
| 1234 | else {
|
---|
| 1235 | return mrb_nil_value();
|
---|
| 1236 | }
|
---|
| 1237 | RSTR_PTR(s)[RSTR_LEN(s)] = '\0';
|
---|
| 1238 | return str;
|
---|
| 1239 | }
|
---|
| 1240 |
|
---|
| 1241 | if (len == 0 || mrb_nil_p(rs)) return mrb_nil_value();
|
---|
| 1242 | p = RSTR_PTR(s);
|
---|
| 1243 | rslen = RSTRING_LEN(rs);
|
---|
| 1244 | if (rslen == 0) {
|
---|
| 1245 | while (len>0 && p[len-1] == '\n') {
|
---|
| 1246 | len--;
|
---|
| 1247 | if (len>0 && p[len-1] == '\r')
|
---|
| 1248 | len--;
|
---|
| 1249 | }
|
---|
| 1250 | if (len < RSTR_LEN(s)) {
|
---|
| 1251 | RSTR_SET_LEN(s, len);
|
---|
| 1252 | p[len] = '\0';
|
---|
| 1253 | return str;
|
---|
| 1254 | }
|
---|
| 1255 | return mrb_nil_value();
|
---|
| 1256 | }
|
---|
| 1257 | if (rslen > len) return mrb_nil_value();
|
---|
| 1258 | newline = RSTRING_PTR(rs)[rslen-1];
|
---|
| 1259 | if (rslen == 1 && newline == '\n')
|
---|
| 1260 | newline = RSTRING_PTR(rs)[rslen-1];
|
---|
| 1261 | if (rslen == 1 && newline == '\n')
|
---|
| 1262 | goto smart_chomp;
|
---|
| 1263 |
|
---|
| 1264 | pp = p + len - rslen;
|
---|
| 1265 | if (p[len-1] == newline &&
|
---|
| 1266 | (rslen <= 1 ||
|
---|
| 1267 | memcmp(RSTRING_PTR(rs), pp, rslen) == 0)) {
|
---|
| 1268 | RSTR_SET_LEN(s, len - rslen);
|
---|
| 1269 | p[RSTR_LEN(s)] = '\0';
|
---|
| 1270 | return str;
|
---|
| 1271 | }
|
---|
| 1272 | return mrb_nil_value();
|
---|
| 1273 | }
|
---|
| 1274 |
|
---|
| 1275 | /* 15.2.10.5.9 */
|
---|
| 1276 | /*
|
---|
| 1277 | * call-seq:
|
---|
| 1278 | * str.chomp(separator="\n") => new_str
|
---|
| 1279 | *
|
---|
| 1280 | * Returns a new <code>String</code> with the given record separator removed
|
---|
| 1281 | * from the end of <i>str</i> (if present). If <code>$/</code> has not been
|
---|
| 1282 | * changed from the default Ruby record separator, then <code>chomp</code> also
|
---|
| 1283 | * removes carriage return characters (that is it will remove <code>\n</code>,
|
---|
| 1284 | * <code>\r</code>, and <code>\r\n</code>).
|
---|
| 1285 | *
|
---|
| 1286 | * "hello".chomp #=> "hello"
|
---|
| 1287 | * "hello\n".chomp #=> "hello"
|
---|
| 1288 | * "hello\r\n".chomp #=> "hello"
|
---|
| 1289 | * "hello\n\r".chomp #=> "hello\n"
|
---|
| 1290 | * "hello\r".chomp #=> "hello"
|
---|
| 1291 | * "hello \n there".chomp #=> "hello \n there"
|
---|
| 1292 | * "hello".chomp("llo") #=> "he"
|
---|
| 1293 | */
|
---|
| 1294 | static mrb_value
|
---|
| 1295 | mrb_str_chomp(mrb_state *mrb, mrb_value self)
|
---|
| 1296 | {
|
---|
| 1297 | mrb_value str;
|
---|
| 1298 |
|
---|
| 1299 | str = mrb_str_dup(mrb, self);
|
---|
| 1300 | mrb_str_chomp_bang(mrb, str);
|
---|
| 1301 | return str;
|
---|
| 1302 | }
|
---|
| 1303 |
|
---|
| 1304 | /* 15.2.10.5.12 */
|
---|
| 1305 | /*
|
---|
| 1306 | * call-seq:
|
---|
| 1307 | * str.chop! => str or nil
|
---|
| 1308 | *
|
---|
| 1309 | * Processes <i>str</i> as for <code>String#chop</code>, returning <i>str</i>,
|
---|
| 1310 | * or <code>nil</code> if <i>str</i> is the empty string. See also
|
---|
| 1311 | * <code>String#chomp!</code>.
|
---|
| 1312 | */
|
---|
| 1313 | static mrb_value
|
---|
| 1314 | mrb_str_chop_bang(mrb_state *mrb, mrb_value str)
|
---|
| 1315 | {
|
---|
| 1316 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1317 |
|
---|
| 1318 | mrb_str_modify(mrb, s);
|
---|
| 1319 | if (RSTR_LEN(s) > 0) {
|
---|
| 1320 | mrb_int len;
|
---|
| 1321 | #ifdef MRB_UTF8_STRING
|
---|
| 1322 | const char* t = RSTR_PTR(s), *p = t;
|
---|
| 1323 | const char* e = p + RSTR_LEN(s);
|
---|
| 1324 | while (p<e) {
|
---|
| 1325 | mrb_int clen = utf8len(p, e);
|
---|
| 1326 | if (p + clen>=e) break;
|
---|
| 1327 | p += clen;
|
---|
| 1328 | }
|
---|
| 1329 | len = p - t;
|
---|
| 1330 | #else
|
---|
| 1331 | len = RSTR_LEN(s) - 1;
|
---|
| 1332 | #endif
|
---|
| 1333 | if (RSTR_PTR(s)[len] == '\n') {
|
---|
| 1334 | if (len > 0 &&
|
---|
| 1335 | RSTR_PTR(s)[len-1] == '\r') {
|
---|
| 1336 | len--;
|
---|
| 1337 | }
|
---|
| 1338 | }
|
---|
| 1339 | RSTR_SET_LEN(s, len);
|
---|
| 1340 | RSTR_PTR(s)[len] = '\0';
|
---|
| 1341 | return str;
|
---|
| 1342 | }
|
---|
| 1343 | return mrb_nil_value();
|
---|
| 1344 | }
|
---|
| 1345 |
|
---|
| 1346 | /* 15.2.10.5.11 */
|
---|
| 1347 | /*
|
---|
| 1348 | * call-seq:
|
---|
| 1349 | * str.chop => new_str
|
---|
| 1350 | *
|
---|
| 1351 | * Returns a new <code>String</code> with the last character removed. If the
|
---|
| 1352 | * string ends with <code>\r\n</code>, both characters are removed. Applying
|
---|
| 1353 | * <code>chop</code> to an empty string returns an empty
|
---|
| 1354 | * string. <code>String#chomp</code> is often a safer alternative, as it leaves
|
---|
| 1355 | * the string unchanged if it doesn't end in a record separator.
|
---|
| 1356 | *
|
---|
| 1357 | * "string\r\n".chop #=> "string"
|
---|
| 1358 | * "string\n\r".chop #=> "string\n"
|
---|
| 1359 | * "string\n".chop #=> "string"
|
---|
| 1360 | * "string".chop #=> "strin"
|
---|
| 1361 | * "x".chop #=> ""
|
---|
| 1362 | */
|
---|
| 1363 | static mrb_value
|
---|
| 1364 | mrb_str_chop(mrb_state *mrb, mrb_value self)
|
---|
| 1365 | {
|
---|
| 1366 | mrb_value str;
|
---|
| 1367 | str = mrb_str_dup(mrb, self);
|
---|
| 1368 | mrb_str_chop_bang(mrb, str);
|
---|
| 1369 | return str;
|
---|
| 1370 | }
|
---|
| 1371 |
|
---|
| 1372 | /* 15.2.10.5.14 */
|
---|
| 1373 | /*
|
---|
| 1374 | * call-seq:
|
---|
| 1375 | * str.downcase! => str or nil
|
---|
| 1376 | *
|
---|
| 1377 | * Downcases the contents of <i>str</i>, returning <code>nil</code> if no
|
---|
| 1378 | * changes were made.
|
---|
| 1379 | */
|
---|
| 1380 | static mrb_value
|
---|
| 1381 | mrb_str_downcase_bang(mrb_state *mrb, mrb_value str)
|
---|
| 1382 | {
|
---|
| 1383 | char *p, *pend;
|
---|
| 1384 | mrb_bool modify = FALSE;
|
---|
| 1385 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1386 |
|
---|
| 1387 | mrb_str_modify(mrb, s);
|
---|
| 1388 | p = RSTR_PTR(s);
|
---|
| 1389 | pend = RSTR_PTR(s) + RSTR_LEN(s);
|
---|
| 1390 | while (p < pend) {
|
---|
| 1391 | if (ISUPPER(*p)) {
|
---|
| 1392 | *p = TOLOWER(*p);
|
---|
| 1393 | modify = TRUE;
|
---|
| 1394 | }
|
---|
| 1395 | p++;
|
---|
| 1396 | }
|
---|
| 1397 |
|
---|
| 1398 | if (modify) return str;
|
---|
| 1399 | return mrb_nil_value();
|
---|
| 1400 | }
|
---|
| 1401 |
|
---|
| 1402 | /* 15.2.10.5.13 */
|
---|
| 1403 | /*
|
---|
| 1404 | * call-seq:
|
---|
| 1405 | * str.downcase => new_str
|
---|
| 1406 | *
|
---|
| 1407 | * Returns a copy of <i>str</i> with all uppercase letters replaced with their
|
---|
| 1408 | * lowercase counterparts. The operation is locale insensitive---only
|
---|
| 1409 | * characters 'A' to 'Z' are affected.
|
---|
| 1410 | *
|
---|
| 1411 | * "hEllO".downcase #=> "hello"
|
---|
| 1412 | */
|
---|
| 1413 | static mrb_value
|
---|
| 1414 | mrb_str_downcase(mrb_state *mrb, mrb_value self)
|
---|
| 1415 | {
|
---|
| 1416 | mrb_value str;
|
---|
| 1417 |
|
---|
| 1418 | str = mrb_str_dup(mrb, self);
|
---|
| 1419 | mrb_str_downcase_bang(mrb, str);
|
---|
| 1420 | return str;
|
---|
| 1421 | }
|
---|
| 1422 |
|
---|
| 1423 | /* 15.2.10.5.16 */
|
---|
| 1424 | /*
|
---|
| 1425 | * call-seq:
|
---|
| 1426 | * str.empty? => true or false
|
---|
| 1427 | *
|
---|
| 1428 | * Returns <code>true</code> if <i>str</i> has a length of zero.
|
---|
| 1429 | *
|
---|
| 1430 | * "hello".empty? #=> false
|
---|
| 1431 | * "".empty? #=> true
|
---|
| 1432 | */
|
---|
| 1433 | static mrb_value
|
---|
| 1434 | mrb_str_empty_p(mrb_state *mrb, mrb_value self)
|
---|
| 1435 | {
|
---|
| 1436 | struct RString *s = mrb_str_ptr(self);
|
---|
| 1437 |
|
---|
| 1438 | return mrb_bool_value(RSTR_LEN(s) == 0);
|
---|
| 1439 | }
|
---|
| 1440 |
|
---|
| 1441 | /* 15.2.10.5.17 */
|
---|
| 1442 | /*
|
---|
| 1443 | * call-seq:
|
---|
| 1444 | * str.eql?(other) => true or false
|
---|
| 1445 | *
|
---|
| 1446 | * Two strings are equal if the have the same length and content.
|
---|
| 1447 | */
|
---|
| 1448 | static mrb_value
|
---|
| 1449 | mrb_str_eql(mrb_state *mrb, mrb_value self)
|
---|
| 1450 | {
|
---|
| 1451 | mrb_value str2;
|
---|
| 1452 | mrb_bool eql_p;
|
---|
| 1453 |
|
---|
| 1454 | mrb_get_args(mrb, "o", &str2);
|
---|
| 1455 | eql_p = (mrb_type(str2) == MRB_TT_STRING) && str_eql(mrb, self, str2);
|
---|
| 1456 |
|
---|
| 1457 | return mrb_bool_value(eql_p);
|
---|
| 1458 | }
|
---|
| 1459 |
|
---|
| 1460 | MRB_API mrb_value
|
---|
| 1461 | mrb_str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len)
|
---|
| 1462 | {
|
---|
| 1463 | return str_substr(mrb, str, beg, len);
|
---|
| 1464 | }
|
---|
| 1465 |
|
---|
| 1466 | mrb_int
|
---|
| 1467 | mrb_str_hash(mrb_state *mrb, mrb_value str)
|
---|
| 1468 | {
|
---|
| 1469 | /* 1-8-7 */
|
---|
| 1470 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1471 | mrb_int len = RSTR_LEN(s);
|
---|
| 1472 | char *p = RSTR_PTR(s);
|
---|
| 1473 | mrb_int key = 0;
|
---|
| 1474 |
|
---|
| 1475 | while (len--) {
|
---|
| 1476 | key = key*65599 + *p;
|
---|
| 1477 | p++;
|
---|
| 1478 | }
|
---|
| 1479 | return key + (key>>5);
|
---|
| 1480 | }
|
---|
| 1481 |
|
---|
| 1482 | /* 15.2.10.5.20 */
|
---|
| 1483 | /*
|
---|
| 1484 | * call-seq:
|
---|
| 1485 | * str.hash => fixnum
|
---|
| 1486 | *
|
---|
| 1487 | * Return a hash based on the string's length and content.
|
---|
| 1488 | */
|
---|
| 1489 | static mrb_value
|
---|
| 1490 | mrb_str_hash_m(mrb_state *mrb, mrb_value self)
|
---|
| 1491 | {
|
---|
| 1492 | mrb_int key = mrb_str_hash(mrb, self);
|
---|
| 1493 | return mrb_fixnum_value(key);
|
---|
| 1494 | }
|
---|
| 1495 |
|
---|
| 1496 | /* 15.2.10.5.21 */
|
---|
| 1497 | /*
|
---|
| 1498 | * call-seq:
|
---|
| 1499 | * str.include? other_str => true or false
|
---|
| 1500 | * str.include? fixnum => true or false
|
---|
| 1501 | *
|
---|
| 1502 | * Returns <code>true</code> if <i>str</i> contains the given string or
|
---|
| 1503 | * character.
|
---|
| 1504 | *
|
---|
| 1505 | * "hello".include? "lo" #=> true
|
---|
| 1506 | * "hello".include? "ol" #=> false
|
---|
| 1507 | * "hello".include? ?h #=> true
|
---|
| 1508 | */
|
---|
| 1509 | static mrb_value
|
---|
| 1510 | mrb_str_include(mrb_state *mrb, mrb_value self)
|
---|
| 1511 | {
|
---|
| 1512 | mrb_int i;
|
---|
| 1513 | mrb_value str2;
|
---|
| 1514 | mrb_bool include_p;
|
---|
| 1515 |
|
---|
| 1516 | mrb_get_args(mrb, "o", &str2);
|
---|
| 1517 | if (mrb_fixnum_p(str2)) {
|
---|
| 1518 | include_p = (memchr(RSTRING_PTR(self), mrb_fixnum(str2), RSTRING_LEN(self)) != NULL);
|
---|
| 1519 | }
|
---|
| 1520 | else {
|
---|
| 1521 | str2 = mrb_str_to_str(mrb, str2);
|
---|
| 1522 | i = str_index(mrb, self, str2, 0);
|
---|
| 1523 |
|
---|
| 1524 | include_p = (i != -1);
|
---|
| 1525 | }
|
---|
| 1526 |
|
---|
| 1527 | return mrb_bool_value(include_p);
|
---|
| 1528 | }
|
---|
| 1529 |
|
---|
| 1530 | /* 15.2.10.5.22 */
|
---|
| 1531 | /*
|
---|
| 1532 | * call-seq:
|
---|
| 1533 | * str.index(substring [, offset]) => fixnum or nil
|
---|
| 1534 | * str.index(fixnum [, offset]) => fixnum or nil
|
---|
| 1535 | * str.index(regexp [, offset]) => fixnum or nil
|
---|
| 1536 | *
|
---|
| 1537 | * Returns the index of the first occurrence of the given
|
---|
| 1538 | * <i>substring</i>,
|
---|
| 1539 | * character (<i>fixnum</i>), or pattern (<i>regexp</i>) in <i>str</i>.
|
---|
| 1540 | * Returns
|
---|
| 1541 | * <code>nil</code> if not found.
|
---|
| 1542 | * If the second parameter is present, it
|
---|
| 1543 | * specifies the position in the string to begin the search.
|
---|
| 1544 | *
|
---|
| 1545 | * "hello".index('e') #=> 1
|
---|
| 1546 | * "hello".index('lo') #=> 3
|
---|
| 1547 | * "hello".index('a') #=> nil
|
---|
| 1548 | * "hello".index(101) #=> 1(101=0x65='e')
|
---|
| 1549 | * "hello".index(/[aeiou]/, -3) #=> 4
|
---|
| 1550 | */
|
---|
| 1551 | static mrb_value
|
---|
| 1552 | mrb_str_index(mrb_state *mrb, mrb_value str)
|
---|
| 1553 | {
|
---|
| 1554 | mrb_value *argv;
|
---|
| 1555 | mrb_int argc;
|
---|
| 1556 | mrb_value sub;
|
---|
| 1557 | mrb_int pos, clen;
|
---|
| 1558 |
|
---|
| 1559 | mrb_get_args(mrb, "*", &argv, &argc);
|
---|
| 1560 | if (argc == 2) {
|
---|
| 1561 | pos = mrb_fixnum(argv[1]);
|
---|
| 1562 | sub = argv[0];
|
---|
| 1563 | }
|
---|
| 1564 | else {
|
---|
| 1565 | pos = 0;
|
---|
| 1566 | if (argc > 0)
|
---|
| 1567 | sub = argv[0];
|
---|
| 1568 | else
|
---|
| 1569 | sub = mrb_nil_value();
|
---|
| 1570 | }
|
---|
| 1571 | mrb_regexp_check(mrb, sub);
|
---|
| 1572 | clen = RSTRING_CHAR_LEN(str);
|
---|
| 1573 | if (pos < 0) {
|
---|
| 1574 | pos += clen;
|
---|
| 1575 | if (pos < 0) {
|
---|
| 1576 | return mrb_nil_value();
|
---|
| 1577 | }
|
---|
| 1578 | }
|
---|
| 1579 | if (pos >= clen) return mrb_nil_value();
|
---|
| 1580 | pos = chars2bytes(str, 0, pos);
|
---|
| 1581 |
|
---|
| 1582 | switch (mrb_type(sub)) {
|
---|
| 1583 | default: {
|
---|
| 1584 | mrb_value tmp;
|
---|
| 1585 |
|
---|
| 1586 | tmp = mrb_check_string_type(mrb, sub);
|
---|
| 1587 | if (mrb_nil_p(tmp)) {
|
---|
| 1588 | mrb_raisef(mrb, E_TYPE_ERROR, "type mismatch: %S given", sub);
|
---|
| 1589 | }
|
---|
| 1590 | sub = tmp;
|
---|
| 1591 | }
|
---|
| 1592 | /* fall through */
|
---|
| 1593 | case MRB_TT_STRING:
|
---|
| 1594 | pos = str_index(mrb, str, sub, pos);
|
---|
| 1595 | break;
|
---|
| 1596 | }
|
---|
| 1597 |
|
---|
| 1598 | if (pos == -1) return mrb_nil_value();
|
---|
| 1599 | pos = bytes2chars(RSTRING_PTR(str), pos);
|
---|
| 1600 | return mrb_fixnum_value(pos);
|
---|
| 1601 | }
|
---|
| 1602 |
|
---|
| 1603 | #define STR_REPLACE_SHARED_MIN 10
|
---|
| 1604 |
|
---|
| 1605 | /* 15.2.10.5.24 */
|
---|
| 1606 | /* 15.2.10.5.28 */
|
---|
| 1607 | /*
|
---|
| 1608 | * call-seq:
|
---|
| 1609 | * str.replace(other_str) => str
|
---|
| 1610 | *
|
---|
| 1611 | * s = "hello" #=> "hello"
|
---|
| 1612 | * s.replace "world" #=> "world"
|
---|
| 1613 | */
|
---|
| 1614 | static mrb_value
|
---|
| 1615 | mrb_str_replace(mrb_state *mrb, mrb_value str)
|
---|
| 1616 | {
|
---|
| 1617 | mrb_value str2;
|
---|
| 1618 |
|
---|
| 1619 | mrb_get_args(mrb, "S", &str2);
|
---|
| 1620 | return str_replace(mrb, mrb_str_ptr(str), mrb_str_ptr(str2));
|
---|
| 1621 | }
|
---|
| 1622 |
|
---|
| 1623 | /* 15.2.10.5.23 */
|
---|
| 1624 | /*
|
---|
| 1625 | * call-seq:
|
---|
| 1626 | * String.new(str="") => new_str
|
---|
| 1627 | *
|
---|
| 1628 | * Returns a new string object containing a copy of <i>str</i>.
|
---|
| 1629 | */
|
---|
| 1630 | static mrb_value
|
---|
| 1631 | mrb_str_init(mrb_state *mrb, mrb_value self)
|
---|
| 1632 | {
|
---|
| 1633 | mrb_value str2;
|
---|
| 1634 |
|
---|
| 1635 | if (mrb_get_args(mrb, "|S", &str2) == 1) {
|
---|
| 1636 | str_replace(mrb, mrb_str_ptr(self), mrb_str_ptr(str2));
|
---|
| 1637 | }
|
---|
| 1638 | return self;
|
---|
| 1639 | }
|
---|
| 1640 |
|
---|
| 1641 | /* 15.2.10.5.25 */
|
---|
| 1642 | /* 15.2.10.5.41 */
|
---|
| 1643 | /*
|
---|
| 1644 | * call-seq:
|
---|
| 1645 | * str.intern => symbol
|
---|
| 1646 | * str.to_sym => symbol
|
---|
| 1647 | *
|
---|
| 1648 | * Returns the <code>Symbol</code> corresponding to <i>str</i>, creating the
|
---|
| 1649 | * symbol if it did not previously exist. See <code>Symbol#id2name</code>.
|
---|
| 1650 | *
|
---|
| 1651 | * "Koala".intern #=> :Koala
|
---|
| 1652 | * s = 'cat'.to_sym #=> :cat
|
---|
| 1653 | * s == :cat #=> true
|
---|
| 1654 | * s = '@cat'.to_sym #=> :@cat
|
---|
| 1655 | * s == :@cat #=> true
|
---|
| 1656 | *
|
---|
| 1657 | * This can also be used to create symbols that cannot be represented using the
|
---|
| 1658 | * <code>:xxx</code> notation.
|
---|
| 1659 | *
|
---|
| 1660 | * 'cat and dog'.to_sym #=> :"cat and dog"
|
---|
| 1661 | */
|
---|
| 1662 | MRB_API mrb_value
|
---|
| 1663 | mrb_str_intern(mrb_state *mrb, mrb_value self)
|
---|
| 1664 | {
|
---|
| 1665 | return mrb_symbol_value(mrb_intern_str(mrb, self));
|
---|
| 1666 | }
|
---|
| 1667 | /* ---------------------------------- */
|
---|
| 1668 | MRB_API mrb_value
|
---|
| 1669 | mrb_obj_as_string(mrb_state *mrb, mrb_value obj)
|
---|
| 1670 | {
|
---|
| 1671 | mrb_value str;
|
---|
| 1672 |
|
---|
| 1673 | if (mrb_string_p(obj)) {
|
---|
| 1674 | return obj;
|
---|
| 1675 | }
|
---|
| 1676 | str = mrb_funcall(mrb, obj, "to_s", 0);
|
---|
| 1677 | if (!mrb_string_p(str))
|
---|
| 1678 | return mrb_any_to_s(mrb, obj);
|
---|
| 1679 | return str;
|
---|
| 1680 | }
|
---|
| 1681 |
|
---|
| 1682 | MRB_API mrb_value
|
---|
| 1683 | mrb_ptr_to_str(mrb_state *mrb, void *p)
|
---|
| 1684 | {
|
---|
| 1685 | struct RString *p_str;
|
---|
| 1686 | char *p1;
|
---|
| 1687 | char *p2;
|
---|
| 1688 | uintptr_t n = (uintptr_t)p;
|
---|
| 1689 |
|
---|
| 1690 | p_str = str_new(mrb, NULL, 2 + sizeof(uintptr_t) * CHAR_BIT / 4);
|
---|
| 1691 | p1 = RSTR_PTR(p_str);
|
---|
| 1692 | *p1++ = '0';
|
---|
| 1693 | *p1++ = 'x';
|
---|
| 1694 | p2 = p1;
|
---|
| 1695 |
|
---|
| 1696 | do {
|
---|
| 1697 | *p2++ = mrb_digitmap[n % 16];
|
---|
| 1698 | n /= 16;
|
---|
| 1699 | } while (n > 0);
|
---|
| 1700 | *p2 = '\0';
|
---|
| 1701 | RSTR_SET_LEN(p_str, (mrb_int)(p2 - RSTR_PTR(p_str)));
|
---|
| 1702 |
|
---|
| 1703 | while (p1 < p2) {
|
---|
| 1704 | const char c = *p1;
|
---|
| 1705 | *p1++ = *--p2;
|
---|
| 1706 | *p2 = c;
|
---|
| 1707 | }
|
---|
| 1708 |
|
---|
| 1709 | return mrb_obj_value(p_str);
|
---|
| 1710 | }
|
---|
| 1711 |
|
---|
| 1712 | MRB_API mrb_value
|
---|
| 1713 | mrb_string_type(mrb_state *mrb, mrb_value str)
|
---|
| 1714 | {
|
---|
| 1715 | return mrb_convert_type(mrb, str, MRB_TT_STRING, "String", "to_str");
|
---|
| 1716 | }
|
---|
| 1717 |
|
---|
| 1718 | MRB_API mrb_value
|
---|
| 1719 | mrb_check_string_type(mrb_state *mrb, mrb_value str)
|
---|
| 1720 | {
|
---|
| 1721 | return mrb_check_convert_type(mrb, str, MRB_TT_STRING, "String", "to_str");
|
---|
| 1722 | }
|
---|
| 1723 |
|
---|
| 1724 | /* 15.2.10.5.30 */
|
---|
| 1725 | /*
|
---|
| 1726 | * call-seq:
|
---|
| 1727 | * str.reverse! => str
|
---|
| 1728 | *
|
---|
| 1729 | * Reverses <i>str</i> in place.
|
---|
| 1730 | */
|
---|
| 1731 | static mrb_value
|
---|
| 1732 | mrb_str_reverse_bang(mrb_state *mrb, mrb_value str)
|
---|
| 1733 | {
|
---|
| 1734 | #ifdef MRB_UTF8_STRING
|
---|
| 1735 | mrb_int utf8_len = RSTRING_CHAR_LEN(str);
|
---|
| 1736 | mrb_int len = RSTRING_LEN(str);
|
---|
| 1737 |
|
---|
| 1738 | if (utf8_len == len) goto bytes;
|
---|
| 1739 | if (utf8_len > 1) {
|
---|
| 1740 | char *buf;
|
---|
| 1741 | char *p, *e, *r;
|
---|
| 1742 |
|
---|
| 1743 | mrb_str_modify(mrb, mrb_str_ptr(str));
|
---|
| 1744 | len = RSTRING_LEN(str);
|
---|
| 1745 | buf = mrb_malloc(mrb, (size_t)len);
|
---|
| 1746 | p = buf;
|
---|
| 1747 | e = buf + len;
|
---|
| 1748 |
|
---|
| 1749 | memcpy(buf, RSTRING_PTR(str), len);
|
---|
| 1750 | r = RSTRING_PTR(str) + len;
|
---|
| 1751 |
|
---|
| 1752 | while (p<e) {
|
---|
| 1753 | mrb_int clen = utf8len(p, e);
|
---|
| 1754 | r -= clen;
|
---|
| 1755 | memcpy(r, p, clen);
|
---|
| 1756 | p += clen;
|
---|
| 1757 | }
|
---|
| 1758 | mrb_free(mrb, buf);
|
---|
| 1759 | }
|
---|
| 1760 | return str;
|
---|
| 1761 |
|
---|
| 1762 | bytes:
|
---|
| 1763 | #endif
|
---|
| 1764 | {
|
---|
| 1765 | struct RString *s = mrb_str_ptr(str);
|
---|
| 1766 | char *p, *e;
|
---|
| 1767 | char c;
|
---|
| 1768 |
|
---|
| 1769 | mrb_str_modify(mrb, s);
|
---|
| 1770 | if (RSTR_LEN(s) > 1) {
|
---|
| 1771 | p = RSTR_PTR(s);
|
---|
| 1772 | e = p + RSTR_LEN(s) - 1;
|
---|
| 1773 | while (p < e) {
|
---|
| 1774 | c = *p;
|
---|
| 1775 | *p++ = *e;
|
---|
| 1776 | *e-- = c;
|
---|
| 1777 | }
|
---|
| 1778 | }
|
---|
| 1779 | return str;
|
---|
| 1780 | }
|
---|
| 1781 | }
|
---|
| 1782 |
|
---|
| 1783 | /* ---------------------------------- */
|
---|
| 1784 | /* 15.2.10.5.29 */
|
---|
| 1785 | /*
|
---|
| 1786 | * call-seq:
|
---|
| 1787 | * str.reverse => new_str
|
---|
| 1788 | *
|
---|
| 1789 | * Returns a new string with the characters from <i>str</i> in reverse order.
|
---|
| 1790 | *
|
---|
| 1791 | * "stressed".reverse #=> "desserts"
|
---|
| 1792 | */
|
---|
| 1793 | static mrb_value
|
---|
| 1794 | mrb_str_reverse(mrb_state *mrb, mrb_value str)
|
---|
| 1795 | {
|
---|
| 1796 | mrb_value str2 = mrb_str_dup(mrb, str);
|
---|
| 1797 | mrb_str_reverse_bang(mrb, str2);
|
---|
| 1798 | return str2;
|
---|
| 1799 | }
|
---|
| 1800 |
|
---|
| 1801 | /* 15.2.10.5.31 */
|
---|
| 1802 | /*
|
---|
| 1803 | * call-seq:
|
---|
| 1804 | * str.rindex(substring [, fixnum]) => fixnum or nil
|
---|
| 1805 | * str.rindex(fixnum [, fixnum]) => fixnum or nil
|
---|
| 1806 | * str.rindex(regexp [, fixnum]) => fixnum or nil
|
---|
| 1807 | *
|
---|
| 1808 | * Returns the index of the last occurrence of the given <i>substring</i>,
|
---|
| 1809 | * character (<i>fixnum</i>), or pattern (<i>regexp</i>) in <i>str</i>. Returns
|
---|
| 1810 | * <code>nil</code> if not found. If the second parameter is present, it
|
---|
| 1811 | * specifies the position in the string to end the search---characters beyond
|
---|
| 1812 | * this point will not be considered.
|
---|
| 1813 | *
|
---|
| 1814 | * "hello".rindex('e') #=> 1
|
---|
| 1815 | * "hello".rindex('l') #=> 3
|
---|
| 1816 | * "hello".rindex('a') #=> nil
|
---|
| 1817 | * "hello".rindex(101) #=> 1
|
---|
| 1818 | * "hello".rindex(/[aeiou]/, -2) #=> 1
|
---|
| 1819 | */
|
---|
| 1820 | static mrb_value
|
---|
| 1821 | mrb_str_rindex(mrb_state *mrb, mrb_value str)
|
---|
| 1822 | {
|
---|
| 1823 | mrb_value *argv;
|
---|
| 1824 | mrb_int argc;
|
---|
| 1825 | mrb_value sub;
|
---|
| 1826 | mrb_value vpos;
|
---|
| 1827 | mrb_int pos, len = RSTRING_CHAR_LEN(str);
|
---|
| 1828 |
|
---|
| 1829 | mrb_get_args(mrb, "*", &argv, &argc);
|
---|
| 1830 | if (argc == 2) {
|
---|
| 1831 | sub = argv[0];
|
---|
| 1832 | vpos = argv[1];
|
---|
| 1833 | pos = mrb_fixnum(vpos);
|
---|
| 1834 | if (pos < 0) {
|
---|
| 1835 | pos += len;
|
---|
| 1836 | if (pos < 0) {
|
---|
| 1837 | mrb_regexp_check(mrb, sub);
|
---|
| 1838 | return mrb_nil_value();
|
---|
| 1839 | }
|
---|
| 1840 | }
|
---|
| 1841 | if (pos > len) pos = len;
|
---|
| 1842 | }
|
---|
| 1843 | else {
|
---|
| 1844 | pos = len;
|
---|
| 1845 | if (argc > 0)
|
---|
| 1846 | sub = argv[0];
|
---|
| 1847 | else
|
---|
| 1848 | sub = mrb_nil_value();
|
---|
| 1849 | }
|
---|
| 1850 | pos = chars2bytes(str, 0, pos);
|
---|
| 1851 | len = chars2bytes(str, pos, len);
|
---|
| 1852 | mrb_regexp_check(mrb, sub);
|
---|
| 1853 |
|
---|
| 1854 | switch (mrb_type(sub)) {
|
---|
| 1855 | default: {
|
---|
| 1856 | mrb_value tmp;
|
---|
| 1857 |
|
---|
| 1858 | tmp = mrb_check_string_type(mrb, sub);
|
---|
| 1859 | if (mrb_nil_p(tmp)) {
|
---|
| 1860 | mrb_raisef(mrb, E_TYPE_ERROR, "type mismatch: %S given", sub);
|
---|
| 1861 | }
|
---|
| 1862 | sub = tmp;
|
---|
| 1863 | }
|
---|
| 1864 | /* fall through */
|
---|
| 1865 | case MRB_TT_STRING:
|
---|
| 1866 | pos = str_rindex(mrb, str, sub, pos);
|
---|
| 1867 | if (pos >= 0) {
|
---|
| 1868 | pos = bytes2chars(RSTRING_PTR(str), pos);
|
---|
| 1869 | return mrb_fixnum_value(pos);
|
---|
| 1870 | }
|
---|
| 1871 | break;
|
---|
| 1872 |
|
---|
| 1873 | } /* end of switch (TYPE(sub)) */
|
---|
| 1874 | return mrb_nil_value();
|
---|
| 1875 | }
|
---|
| 1876 |
|
---|
| 1877 | /* 15.2.10.5.35 */
|
---|
| 1878 |
|
---|
| 1879 | /*
|
---|
| 1880 | * call-seq:
|
---|
| 1881 | * str.split(pattern="\n", [limit]) => anArray
|
---|
| 1882 | *
|
---|
| 1883 | * Divides <i>str</i> into substrings based on a delimiter, returning an array
|
---|
| 1884 | * of these substrings.
|
---|
| 1885 | *
|
---|
| 1886 | * If <i>pattern</i> is a <code>String</code>, then its contents are used as
|
---|
| 1887 | * the delimiter when splitting <i>str</i>. If <i>pattern</i> is a single
|
---|
| 1888 | * space, <i>str</i> is split on whitespace, with leading whitespace and runs
|
---|
| 1889 | * of contiguous whitespace characters ignored.
|
---|
| 1890 | *
|
---|
| 1891 | * If <i>pattern</i> is a <code>Regexp</code>, <i>str</i> is divided where the
|
---|
| 1892 | * pattern matches. Whenever the pattern matches a zero-length string,
|
---|
| 1893 | * <i>str</i> is split into individual characters.
|
---|
| 1894 | *
|
---|
| 1895 | * If <i>pattern</i> is omitted, the value of <code>$;</code> is used. If
|
---|
| 1896 | * <code>$;</code> is <code>nil</code> (which is the default), <i>str</i> is
|
---|
| 1897 | * split on whitespace as if ' ' were specified.
|
---|
| 1898 | *
|
---|
| 1899 | * If the <i>limit</i> parameter is omitted, trailing null fields are
|
---|
| 1900 | * suppressed. If <i>limit</i> is a positive number, at most that number of
|
---|
| 1901 | * fields will be returned (if <i>limit</i> is <code>1</code>, the entire
|
---|
| 1902 | * string is returned as the only entry in an array). If negative, there is no
|
---|
| 1903 | * limit to the number of fields returned, and trailing null fields are not
|
---|
| 1904 | * suppressed.
|
---|
| 1905 | *
|
---|
| 1906 | * " now's the time".split #=> ["now's", "the", "time"]
|
---|
| 1907 | * " now's the time".split(' ') #=> ["now's", "the", "time"]
|
---|
| 1908 | * " now's the time".split(/ /) #=> ["", "now's", "", "the", "time"]
|
---|
| 1909 | * "hello".split(//) #=> ["h", "e", "l", "l", "o"]
|
---|
| 1910 | * "hello".split(//, 3) #=> ["h", "e", "llo"]
|
---|
| 1911 | *
|
---|
| 1912 | * "mellow yellow".split("ello") #=> ["m", "w y", "w"]
|
---|
| 1913 | * "1,2,,3,4,,".split(',') #=> ["1", "2", "", "3", "4"]
|
---|
| 1914 | * "1,2,,3,4,,".split(',', 4) #=> ["1", "2", "", "3,4,,"]
|
---|
| 1915 | * "1,2,,3,4,,".split(',', -4) #=> ["1", "2", "", "3", "4", "", ""]
|
---|
| 1916 | */
|
---|
| 1917 |
|
---|
| 1918 | static mrb_value
|
---|
| 1919 | mrb_str_split_m(mrb_state *mrb, mrb_value str)
|
---|
| 1920 | {
|
---|
| 1921 | int argc;
|
---|
| 1922 | mrb_value spat = mrb_nil_value();
|
---|
| 1923 | enum {awk, string, regexp} split_type = string;
|
---|
| 1924 | long i = 0, lim_p;
|
---|
| 1925 | mrb_int beg;
|
---|
| 1926 | mrb_int end;
|
---|
| 1927 | mrb_int lim = 0;
|
---|
| 1928 | mrb_value result, tmp;
|
---|
| 1929 |
|
---|
| 1930 | argc = mrb_get_args(mrb, "|oi", &spat, &lim);
|
---|
| 1931 | lim_p = (lim > 0 && argc == 2);
|
---|
| 1932 | if (argc == 2) {
|
---|
| 1933 | if (lim == 1) {
|
---|
| 1934 | if (RSTRING_LEN(str) == 0)
|
---|
| 1935 | return mrb_ary_new_capa(mrb, 0);
|
---|
| 1936 | return mrb_ary_new_from_values(mrb, 1, &str);
|
---|
| 1937 | }
|
---|
| 1938 | i = 1;
|
---|
| 1939 | }
|
---|
| 1940 |
|
---|
| 1941 | if (argc == 0 || mrb_nil_p(spat)) {
|
---|
| 1942 | split_type = awk;
|
---|
| 1943 | }
|
---|
| 1944 | else {
|
---|
| 1945 | if (mrb_string_p(spat)) {
|
---|
| 1946 | split_type = string;
|
---|
| 1947 | if (RSTRING_LEN(spat) == 1 && RSTRING_PTR(spat)[0] == ' ') {
|
---|
| 1948 | split_type = awk;
|
---|
| 1949 | }
|
---|
| 1950 | }
|
---|
| 1951 | else {
|
---|
| 1952 | mrb_noregexp(mrb, str);
|
---|
| 1953 | }
|
---|
| 1954 | }
|
---|
| 1955 |
|
---|
| 1956 | result = mrb_ary_new(mrb);
|
---|
| 1957 | beg = 0;
|
---|
| 1958 | if (split_type == awk) {
|
---|
| 1959 | mrb_bool skip = TRUE;
|
---|
| 1960 | mrb_int idx = 0;
|
---|
| 1961 | mrb_int str_len = RSTRING_LEN(str);
|
---|
| 1962 | unsigned int c;
|
---|
| 1963 | int ai = mrb_gc_arena_save(mrb);
|
---|
| 1964 |
|
---|
| 1965 | idx = end = beg;
|
---|
| 1966 | while (idx < str_len) {
|
---|
| 1967 | c = (unsigned char)RSTRING_PTR(str)[idx++];
|
---|
| 1968 | if (skip) {
|
---|
| 1969 | if (ISSPACE(c)) {
|
---|
| 1970 | beg = idx;
|
---|
| 1971 | }
|
---|
| 1972 | else {
|
---|
| 1973 | end = idx;
|
---|
| 1974 | skip = FALSE;
|
---|
| 1975 | if (lim_p && lim <= i) break;
|
---|
| 1976 | }
|
---|
| 1977 | }
|
---|
| 1978 | else if (ISSPACE(c)) {
|
---|
| 1979 | mrb_ary_push(mrb, result, byte_subseq(mrb, str, beg, end-beg));
|
---|
| 1980 | mrb_gc_arena_restore(mrb, ai);
|
---|
| 1981 | skip = TRUE;
|
---|
| 1982 | beg = idx;
|
---|
| 1983 | if (lim_p) ++i;
|
---|
| 1984 | }
|
---|
| 1985 | else {
|
---|
| 1986 | end = idx;
|
---|
| 1987 | }
|
---|
| 1988 | }
|
---|
| 1989 | }
|
---|
| 1990 | else if (split_type == string) {
|
---|
| 1991 | mrb_int str_len = RSTRING_LEN(str);
|
---|
| 1992 | mrb_int pat_len = RSTRING_LEN(spat);
|
---|
| 1993 | mrb_int idx = 0;
|
---|
| 1994 | int ai = mrb_gc_arena_save(mrb);
|
---|
| 1995 |
|
---|
| 1996 | while (idx < str_len) {
|
---|
| 1997 | if (pat_len > 0) {
|
---|
| 1998 | end = mrb_memsearch(RSTRING_PTR(spat), pat_len, RSTRING_PTR(str)+idx, str_len - idx);
|
---|
| 1999 | if (end < 0) break;
|
---|
| 2000 | } else {
|
---|
| 2001 | end = chars2bytes(str, idx, 1);
|
---|
| 2002 | }
|
---|
| 2003 | mrb_ary_push(mrb, result, byte_subseq(mrb, str, idx, end));
|
---|
| 2004 | mrb_gc_arena_restore(mrb, ai);
|
---|
| 2005 | idx += end + pat_len;
|
---|
| 2006 | if (lim_p && lim <= ++i) break;
|
---|
| 2007 | }
|
---|
| 2008 | beg = idx;
|
---|
| 2009 | }
|
---|
| 2010 | else {
|
---|
| 2011 | mrb_noregexp(mrb, str);
|
---|
| 2012 | }
|
---|
| 2013 | if (RSTRING_LEN(str) > 0 && (lim_p || RSTRING_LEN(str) > beg || lim < 0)) {
|
---|
| 2014 | if (RSTRING_LEN(str) == beg) {
|
---|
| 2015 | tmp = mrb_str_new_empty(mrb, str);
|
---|
| 2016 | }
|
---|
| 2017 | else {
|
---|
| 2018 | tmp = byte_subseq(mrb, str, beg, RSTRING_LEN(str)-beg);
|
---|
| 2019 | }
|
---|
| 2020 | mrb_ary_push(mrb, result, tmp);
|
---|
| 2021 | }
|
---|
| 2022 | if (!lim_p && lim == 0) {
|
---|
| 2023 | mrb_int len;
|
---|
| 2024 | while ((len = RARRAY_LEN(result)) > 0 &&
|
---|
| 2025 | (tmp = RARRAY_PTR(result)[len-1], RSTRING_LEN(tmp) == 0))
|
---|
| 2026 | mrb_ary_pop(mrb, result);
|
---|
| 2027 | }
|
---|
| 2028 |
|
---|
| 2029 | return result;
|
---|
| 2030 | }
|
---|
| 2031 |
|
---|
| 2032 | MRB_API mrb_value
|
---|
| 2033 | mrb_cstr_to_inum(mrb_state *mrb, const char *str, int base, int badcheck)
|
---|
| 2034 | {
|
---|
| 2035 | const char *p;
|
---|
| 2036 | char sign = 1;
|
---|
| 2037 | int c, uscore;
|
---|
| 2038 | uint64_t n = 0;
|
---|
| 2039 | mrb_int val;
|
---|
| 2040 |
|
---|
| 2041 | #define conv_digit(c) \
|
---|
| 2042 | (ISDIGIT(c) ? ((c) - '0') : \
|
---|
| 2043 | ISLOWER(c) ? ((c) - 'a' + 10) : \
|
---|
| 2044 | ISUPPER(c) ? ((c) - 'A' + 10) : \
|
---|
| 2045 | -1)
|
---|
| 2046 |
|
---|
| 2047 | if (!str) {
|
---|
| 2048 | if (badcheck) goto bad;
|
---|
| 2049 | return mrb_fixnum_value(0);
|
---|
| 2050 | }
|
---|
| 2051 | while (ISSPACE(*str)) str++;
|
---|
| 2052 |
|
---|
| 2053 | if (str[0] == '+') {
|
---|
| 2054 | str++;
|
---|
| 2055 | }
|
---|
| 2056 | else if (str[0] == '-') {
|
---|
| 2057 | str++;
|
---|
| 2058 | sign = 0;
|
---|
| 2059 | }
|
---|
| 2060 | if (str[0] == '+' || str[0] == '-') {
|
---|
| 2061 | if (badcheck) goto bad;
|
---|
| 2062 | return mrb_fixnum_value(0);
|
---|
| 2063 | }
|
---|
| 2064 | if (base <= 0) {
|
---|
| 2065 | if (str[0] == '0') {
|
---|
| 2066 | switch (str[1]) {
|
---|
| 2067 | case 'x': case 'X':
|
---|
| 2068 | base = 16;
|
---|
| 2069 | break;
|
---|
| 2070 | case 'b': case 'B':
|
---|
| 2071 | base = 2;
|
---|
| 2072 | break;
|
---|
| 2073 | case 'o': case 'O':
|
---|
| 2074 | base = 8;
|
---|
| 2075 | break;
|
---|
| 2076 | case 'd': case 'D':
|
---|
| 2077 | base = 10;
|
---|
| 2078 | break;
|
---|
| 2079 | default:
|
---|
| 2080 | base = 8;
|
---|
| 2081 | }
|
---|
| 2082 | }
|
---|
| 2083 | else if (base < -1) {
|
---|
| 2084 | base = -base;
|
---|
| 2085 | }
|
---|
| 2086 | else {
|
---|
| 2087 | base = 10;
|
---|
| 2088 | }
|
---|
| 2089 | }
|
---|
| 2090 | switch (base) {
|
---|
| 2091 | case 2:
|
---|
| 2092 | if (str[0] == '0' && (str[1] == 'b'||str[1] == 'B')) {
|
---|
| 2093 | str += 2;
|
---|
| 2094 | }
|
---|
| 2095 | break;
|
---|
| 2096 | case 3:
|
---|
| 2097 | break;
|
---|
| 2098 | case 8:
|
---|
| 2099 | if (str[0] == '0' && (str[1] == 'o'||str[1] == 'O')) {
|
---|
| 2100 | str += 2;
|
---|
| 2101 | }
|
---|
| 2102 | case 4: case 5: case 6: case 7:
|
---|
| 2103 | break;
|
---|
| 2104 | case 10:
|
---|
| 2105 | if (str[0] == '0' && (str[1] == 'd'||str[1] == 'D')) {
|
---|
| 2106 | str += 2;
|
---|
| 2107 | }
|
---|
| 2108 | case 9: case 11: case 12: case 13: case 14: case 15:
|
---|
| 2109 | break;
|
---|
| 2110 | case 16:
|
---|
| 2111 | if (str[0] == '0' && (str[1] == 'x'||str[1] == 'X')) {
|
---|
| 2112 | str += 2;
|
---|
| 2113 | }
|
---|
| 2114 | break;
|
---|
| 2115 | default:
|
---|
| 2116 | if (base < 2 || 36 < base) {
|
---|
| 2117 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal radix %S", mrb_fixnum_value(base));
|
---|
| 2118 | }
|
---|
| 2119 | break;
|
---|
| 2120 | } /* end of switch (base) { */
|
---|
| 2121 | if (*str == '0') { /* squeeze preceding 0s */
|
---|
| 2122 | uscore = 0;
|
---|
| 2123 | while ((c = *++str) == '0' || c == '_') {
|
---|
| 2124 | if (c == '_') {
|
---|
| 2125 | if (++uscore >= 2)
|
---|
| 2126 | break;
|
---|
| 2127 | }
|
---|
| 2128 | else
|
---|
| 2129 | uscore = 0;
|
---|
| 2130 | }
|
---|
| 2131 | if (!(c = *str) || ISSPACE(c)) --str;
|
---|
| 2132 | }
|
---|
| 2133 | c = *str;
|
---|
| 2134 | c = conv_digit(c);
|
---|
| 2135 | if (c < 0 || c >= base) {
|
---|
| 2136 | if (badcheck) goto bad;
|
---|
| 2137 | return mrb_fixnum_value(0);
|
---|
| 2138 | }
|
---|
| 2139 |
|
---|
| 2140 | uscore = 0;
|
---|
| 2141 | for (p=str;*p;p++) {
|
---|
| 2142 | if (*p == '_') {
|
---|
| 2143 | if (uscore == 0) {
|
---|
| 2144 | uscore++;
|
---|
| 2145 | continue;
|
---|
| 2146 | }
|
---|
| 2147 | if (badcheck) goto bad;
|
---|
| 2148 | break;
|
---|
| 2149 | }
|
---|
| 2150 | uscore = 0;
|
---|
| 2151 | c = conv_digit(*p);
|
---|
| 2152 | if (c < 0 || c >= base) {
|
---|
| 2153 | if (badcheck) goto bad;
|
---|
| 2154 | break;
|
---|
| 2155 | }
|
---|
| 2156 | n *= base;
|
---|
| 2157 | n += c;
|
---|
| 2158 | if (n > MRB_INT_MAX) {
|
---|
| 2159 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "string (%S) too big for integer", mrb_str_new_cstr(mrb, str));
|
---|
| 2160 | }
|
---|
| 2161 | }
|
---|
| 2162 | val = n;
|
---|
| 2163 | if (badcheck) {
|
---|
| 2164 | if (p == str) goto bad; /* no number */
|
---|
| 2165 | while (*p && ISSPACE(*p)) p++;
|
---|
| 2166 | if (*p) goto bad; /* trailing garbage */
|
---|
| 2167 | }
|
---|
| 2168 |
|
---|
| 2169 | return mrb_fixnum_value(sign ? val : -val);
|
---|
| 2170 | bad:
|
---|
| 2171 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "invalid string for number(%S)", mrb_str_new_cstr(mrb, str));
|
---|
| 2172 | /* not reached */
|
---|
| 2173 | return mrb_fixnum_value(0);
|
---|
| 2174 | }
|
---|
| 2175 |
|
---|
| 2176 | MRB_API const char*
|
---|
| 2177 | mrb_string_value_cstr(mrb_state *mrb, mrb_value *ptr)
|
---|
| 2178 | {
|
---|
| 2179 | mrb_value str = mrb_str_to_str(mrb, *ptr);
|
---|
| 2180 | struct RString *ps = mrb_str_ptr(str);
|
---|
| 2181 | mrb_int len = mrb_str_strlen(mrb, ps);
|
---|
| 2182 | char *p = RSTR_PTR(ps);
|
---|
| 2183 |
|
---|
| 2184 | if (!p || p[len] != '\0') {
|
---|
| 2185 | mrb_str_modify(mrb, ps);
|
---|
| 2186 | return RSTR_PTR(ps);
|
---|
| 2187 | }
|
---|
| 2188 | return p;
|
---|
| 2189 | }
|
---|
| 2190 |
|
---|
| 2191 | MRB_API mrb_value
|
---|
| 2192 | mrb_str_to_inum(mrb_state *mrb, mrb_value str, mrb_int base, mrb_bool badcheck)
|
---|
| 2193 | {
|
---|
| 2194 | const char *s;
|
---|
| 2195 | mrb_int len;
|
---|
| 2196 |
|
---|
| 2197 | if (badcheck) {
|
---|
| 2198 | /* Raises if the string contains a null character (the badcheck) */
|
---|
| 2199 | s = mrb_string_value_cstr(mrb, &str);
|
---|
| 2200 | }
|
---|
| 2201 | else {
|
---|
| 2202 | s = mrb_string_value_ptr(mrb, str);
|
---|
| 2203 | }
|
---|
| 2204 | if (s) {
|
---|
| 2205 | len = RSTRING_LEN(str);
|
---|
| 2206 | if (s[len]) { /* no sentinel somehow */
|
---|
| 2207 | struct RString *temp_str = str_new(mrb, s, len);
|
---|
| 2208 | s = RSTR_PTR(temp_str);
|
---|
| 2209 | }
|
---|
| 2210 | }
|
---|
| 2211 | return mrb_cstr_to_inum(mrb, s, base, badcheck);
|
---|
| 2212 | }
|
---|
| 2213 |
|
---|
| 2214 | /* 15.2.10.5.38 */
|
---|
| 2215 | /*
|
---|
| 2216 | * call-seq:
|
---|
| 2217 | * str.to_i(base=10) => integer
|
---|
| 2218 | *
|
---|
| 2219 | * Returns the result of interpreting leading characters in <i>str</i> as an
|
---|
| 2220 | * integer base <i>base</i> (between 2 and 36). Extraneous characters past the
|
---|
| 2221 | * end of a valid number are ignored. If there is not a valid number at the
|
---|
| 2222 | * start of <i>str</i>, <code>0</code> is returned. This method never raises an
|
---|
| 2223 | * exception.
|
---|
| 2224 | *
|
---|
| 2225 | * "12345".to_i #=> 12345
|
---|
| 2226 | * "99 red balloons".to_i #=> 99
|
---|
| 2227 | * "0a".to_i #=> 0
|
---|
| 2228 | * "0a".to_i(16) #=> 10
|
---|
| 2229 | * "hello".to_i #=> 0
|
---|
| 2230 | * "1100101".to_i(2) #=> 101
|
---|
| 2231 | * "1100101".to_i(8) #=> 294977
|
---|
| 2232 | * "1100101".to_i(10) #=> 1100101
|
---|
| 2233 | * "1100101".to_i(16) #=> 17826049
|
---|
| 2234 | */
|
---|
| 2235 | static mrb_value
|
---|
| 2236 | mrb_str_to_i(mrb_state *mrb, mrb_value self)
|
---|
| 2237 | {
|
---|
| 2238 | mrb_int base = 10;
|
---|
| 2239 |
|
---|
| 2240 | mrb_get_args(mrb, "|i", &base);
|
---|
| 2241 | if (base < 0) {
|
---|
| 2242 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "illegal radix %S", mrb_fixnum_value(base));
|
---|
| 2243 | }
|
---|
| 2244 | return mrb_str_to_inum(mrb, self, base, FALSE);
|
---|
| 2245 | }
|
---|
| 2246 |
|
---|
| 2247 | MRB_API double
|
---|
| 2248 | mrb_cstr_to_dbl(mrb_state *mrb, const char * p, mrb_bool badcheck)
|
---|
| 2249 | {
|
---|
| 2250 | char *end;
|
---|
| 2251 | char buf[DBL_DIG * 4 + 10];
|
---|
| 2252 | double d;
|
---|
| 2253 |
|
---|
| 2254 | enum {max_width = 20};
|
---|
| 2255 |
|
---|
| 2256 | if (!p) return 0.0;
|
---|
| 2257 | while (ISSPACE(*p)) p++;
|
---|
| 2258 |
|
---|
| 2259 | if (!badcheck && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
|
---|
| 2260 | return 0.0;
|
---|
| 2261 | }
|
---|
| 2262 | d = strtod(p, &end);
|
---|
| 2263 | if (p == end) {
|
---|
| 2264 | if (badcheck) {
|
---|
| 2265 | bad:
|
---|
| 2266 | mrb_raisef(mrb, E_ARGUMENT_ERROR, "invalid string for float(%S)", mrb_str_new_cstr(mrb, p));
|
---|
| 2267 | /* not reached */
|
---|
| 2268 | }
|
---|
| 2269 | return d;
|
---|
| 2270 | }
|
---|
| 2271 | if (*end) {
|
---|
| 2272 | char *n = buf;
|
---|
| 2273 | char *e = buf + sizeof(buf) - 1;
|
---|
| 2274 | char prev = 0;
|
---|
| 2275 |
|
---|
| 2276 | while (p < end && n < e) prev = *n++ = *p++;
|
---|
| 2277 | while (*p) {
|
---|
| 2278 | if (*p == '_') {
|
---|
| 2279 | /* remove underscores between digits */
|
---|
| 2280 | if (badcheck) {
|
---|
| 2281 | if (n == buf || !ISDIGIT(prev)) goto bad;
|
---|
| 2282 | ++p;
|
---|
| 2283 | if (!ISDIGIT(*p)) goto bad;
|
---|
| 2284 | }
|
---|
| 2285 | else {
|
---|
| 2286 | while (*++p == '_');
|
---|
| 2287 | continue;
|
---|
| 2288 | }
|
---|
| 2289 | }
|
---|
| 2290 | prev = *p++;
|
---|
| 2291 | if (n < e) *n++ = prev;
|
---|
| 2292 | }
|
---|
| 2293 | *n = '\0';
|
---|
| 2294 | p = buf;
|
---|
| 2295 |
|
---|
| 2296 | if (!badcheck && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) {
|
---|
| 2297 | return 0.0;
|
---|
| 2298 | }
|
---|
| 2299 |
|
---|
| 2300 | d = strtod(p, &end);
|
---|
| 2301 | if (badcheck) {
|
---|
| 2302 | if (!end || p == end) goto bad;
|
---|
| 2303 | while (*end && ISSPACE(*end)) end++;
|
---|
| 2304 | if (*end) goto bad;
|
---|
| 2305 | }
|
---|
| 2306 | }
|
---|
| 2307 | return d;
|
---|
| 2308 | }
|
---|
| 2309 |
|
---|
| 2310 | MRB_API double
|
---|
| 2311 | mrb_str_to_dbl(mrb_state *mrb, mrb_value str, mrb_bool badcheck)
|
---|
| 2312 | {
|
---|
| 2313 | char *s;
|
---|
| 2314 | mrb_int len;
|
---|
| 2315 |
|
---|
| 2316 | str = mrb_str_to_str(mrb, str);
|
---|
| 2317 | s = RSTRING_PTR(str);
|
---|
| 2318 | len = RSTRING_LEN(str);
|
---|
| 2319 | if (s) {
|
---|
| 2320 | if (badcheck && memchr(s, '\0', len)) {
|
---|
| 2321 | mrb_raise(mrb, E_ARGUMENT_ERROR, "string for Float contains null byte");
|
---|
| 2322 | }
|
---|
| 2323 | if (s[len]) { /* no sentinel somehow */
|
---|
| 2324 | struct RString *temp_str = str_new(mrb, s, len);
|
---|
| 2325 | s = RSTR_PTR(temp_str);
|
---|
| 2326 | }
|
---|
| 2327 | }
|
---|
| 2328 | return mrb_cstr_to_dbl(mrb, s, badcheck);
|
---|
| 2329 | }
|
---|
| 2330 |
|
---|
| 2331 | /* 15.2.10.5.39 */
|
---|
| 2332 | /*
|
---|
| 2333 | * call-seq:
|
---|
| 2334 | * str.to_f => float
|
---|
| 2335 | *
|
---|
| 2336 | * Returns the result of interpreting leading characters in <i>str</i> as a
|
---|
| 2337 | * floating point number. Extraneous characters past the end of a valid number
|
---|
| 2338 | * are ignored. If there is not a valid number at the start of <i>str</i>,
|
---|
| 2339 | * <code>0.0</code> is returned. This method never raises an exception.
|
---|
| 2340 | *
|
---|
| 2341 | * "123.45e1".to_f #=> 1234.5
|
---|
| 2342 | * "45.67 degrees".to_f #=> 45.67
|
---|
| 2343 | * "thx1138".to_f #=> 0.0
|
---|
| 2344 | */
|
---|
| 2345 | static mrb_value
|
---|
| 2346 | mrb_str_to_f(mrb_state *mrb, mrb_value self)
|
---|
| 2347 | {
|
---|
| 2348 | return mrb_float_value(mrb, mrb_str_to_dbl(mrb, self, FALSE));
|
---|
| 2349 | }
|
---|
| 2350 |
|
---|
| 2351 | /* 15.2.10.5.40 */
|
---|
| 2352 | /*
|
---|
| 2353 | * call-seq:
|
---|
| 2354 | * str.to_s => str
|
---|
| 2355 | * str.to_str => str
|
---|
| 2356 | *
|
---|
| 2357 | * Returns the receiver.
|
---|
| 2358 | */
|
---|
| 2359 | static mrb_value
|
---|
| 2360 | mrb_str_to_s(mrb_state *mrb, mrb_value self)
|
---|
| 2361 | {
|
---|
| 2362 | if (mrb_obj_class(mrb, self) != mrb->string_class) {
|
---|
| 2363 | return mrb_str_dup(mrb, self);
|
---|
| 2364 | }
|
---|
| 2365 | return self;
|
---|
| 2366 | }
|
---|
| 2367 |
|
---|
| 2368 | /* 15.2.10.5.43 */
|
---|
| 2369 | /*
|
---|
| 2370 | * call-seq:
|
---|
| 2371 | * str.upcase! => str or nil
|
---|
| 2372 | *
|
---|
| 2373 | * Upcases the contents of <i>str</i>, returning <code>nil</code> if no changes
|
---|
| 2374 | * were made.
|
---|
| 2375 | */
|
---|
| 2376 | static mrb_value
|
---|
| 2377 | mrb_str_upcase_bang(mrb_state *mrb, mrb_value str)
|
---|
| 2378 | {
|
---|
| 2379 | struct RString *s = mrb_str_ptr(str);
|
---|
| 2380 | char *p, *pend;
|
---|
| 2381 | mrb_bool modify = FALSE;
|
---|
| 2382 |
|
---|
| 2383 | mrb_str_modify(mrb, s);
|
---|
| 2384 | p = RSTRING_PTR(str);
|
---|
| 2385 | pend = RSTRING_END(str);
|
---|
| 2386 | while (p < pend) {
|
---|
| 2387 | if (ISLOWER(*p)) {
|
---|
| 2388 | *p = TOUPPER(*p);
|
---|
| 2389 | modify = TRUE;
|
---|
| 2390 | }
|
---|
| 2391 | p++;
|
---|
| 2392 | }
|
---|
| 2393 |
|
---|
| 2394 | if (modify) return str;
|
---|
| 2395 | return mrb_nil_value();
|
---|
| 2396 | }
|
---|
| 2397 |
|
---|
| 2398 | /* 15.2.10.5.42 */
|
---|
| 2399 | /*
|
---|
| 2400 | * call-seq:
|
---|
| 2401 | * str.upcase => new_str
|
---|
| 2402 | *
|
---|
| 2403 | * Returns a copy of <i>str</i> with all lowercase letters replaced with their
|
---|
| 2404 | * uppercase counterparts. The operation is locale insensitive---only
|
---|
| 2405 | * characters 'a' to 'z' are affected.
|
---|
| 2406 | *
|
---|
| 2407 | * "hEllO".upcase #=> "HELLO"
|
---|
| 2408 | */
|
---|
| 2409 | static mrb_value
|
---|
| 2410 | mrb_str_upcase(mrb_state *mrb, mrb_value self)
|
---|
| 2411 | {
|
---|
| 2412 | mrb_value str;
|
---|
| 2413 |
|
---|
| 2414 | str = mrb_str_dup(mrb, self);
|
---|
| 2415 | mrb_str_upcase_bang(mrb, str);
|
---|
| 2416 | return str;
|
---|
| 2417 | }
|
---|
| 2418 |
|
---|
| 2419 | #define IS_EVSTR(p,e) ((p) < (e) && (*(p) == '$' || *(p) == '@' || *(p) == '{'))
|
---|
| 2420 |
|
---|
| 2421 | /*
|
---|
| 2422 | * call-seq:
|
---|
| 2423 | * str.dump -> new_str
|
---|
| 2424 | *
|
---|
| 2425 | * Produces a version of <i>str</i> with all nonprinting characters replaced by
|
---|
| 2426 | * <code>\nnn</code> notation and all special characters escaped.
|
---|
| 2427 | */
|
---|
| 2428 | mrb_value
|
---|
| 2429 | mrb_str_dump(mrb_state *mrb, mrb_value str)
|
---|
| 2430 | {
|
---|
| 2431 | mrb_int len;
|
---|
| 2432 | const char *p, *pend;
|
---|
| 2433 | char *q;
|
---|
| 2434 | struct RString *result;
|
---|
| 2435 |
|
---|
| 2436 | len = 2; /* "" */
|
---|
| 2437 | p = RSTRING_PTR(str); pend = p + RSTRING_LEN(str);
|
---|
| 2438 | while (p < pend) {
|
---|
| 2439 | unsigned char c = *p++;
|
---|
| 2440 | switch (c) {
|
---|
| 2441 | case '"': case '\\':
|
---|
| 2442 | case '\n': case '\r':
|
---|
| 2443 | case '\t': case '\f':
|
---|
| 2444 | case '\013': case '\010': case '\007': case '\033':
|
---|
| 2445 | len += 2;
|
---|
| 2446 | break;
|
---|
| 2447 |
|
---|
| 2448 | case '#':
|
---|
| 2449 | len += IS_EVSTR(p, pend) ? 2 : 1;
|
---|
| 2450 | break;
|
---|
| 2451 |
|
---|
| 2452 | default:
|
---|
| 2453 | if (ISPRINT(c)) {
|
---|
| 2454 | len++;
|
---|
| 2455 | }
|
---|
| 2456 | else {
|
---|
| 2457 | len += 4; /* \NNN */
|
---|
| 2458 | }
|
---|
| 2459 | break;
|
---|
| 2460 | }
|
---|
| 2461 | }
|
---|
| 2462 |
|
---|
| 2463 | result = str_new(mrb, 0, len);
|
---|
| 2464 | str_with_class(mrb, result, str);
|
---|
| 2465 | p = RSTRING_PTR(str); pend = p + RSTRING_LEN(str);
|
---|
| 2466 | q = RSTR_PTR(result);
|
---|
| 2467 | *q++ = '"';
|
---|
| 2468 | while (p < pend) {
|
---|
| 2469 | unsigned char c = *p++;
|
---|
| 2470 |
|
---|
| 2471 | switch (c) {
|
---|
| 2472 | case '"':
|
---|
| 2473 | case '\\':
|
---|
| 2474 | *q++ = '\\';
|
---|
| 2475 | *q++ = c;
|
---|
| 2476 | break;
|
---|
| 2477 |
|
---|
| 2478 | case '\n':
|
---|
| 2479 | *q++ = '\\';
|
---|
| 2480 | *q++ = 'n';
|
---|
| 2481 | break;
|
---|
| 2482 |
|
---|
| 2483 | case '\r':
|
---|
| 2484 | *q++ = '\\';
|
---|
| 2485 | *q++ = 'r';
|
---|
| 2486 | break;
|
---|
| 2487 |
|
---|
| 2488 | case '\t':
|
---|
| 2489 | *q++ = '\\';
|
---|
| 2490 | *q++ = 't';
|
---|
| 2491 | break;
|
---|
| 2492 |
|
---|
| 2493 | case '\f':
|
---|
| 2494 | *q++ = '\\';
|
---|
| 2495 | *q++ = 'f';
|
---|
| 2496 | break;
|
---|
| 2497 |
|
---|
| 2498 | case '\013':
|
---|
| 2499 | *q++ = '\\';
|
---|
| 2500 | *q++ = 'v';
|
---|
| 2501 | break;
|
---|
| 2502 |
|
---|
| 2503 | case '\010':
|
---|
| 2504 | *q++ = '\\';
|
---|
| 2505 | *q++ = 'b';
|
---|
| 2506 | break;
|
---|
| 2507 |
|
---|
| 2508 | case '\007':
|
---|
| 2509 | *q++ = '\\';
|
---|
| 2510 | *q++ = 'a';
|
---|
| 2511 | break;
|
---|
| 2512 |
|
---|
| 2513 | case '\033':
|
---|
| 2514 | *q++ = '\\';
|
---|
| 2515 | *q++ = 'e';
|
---|
| 2516 | break;
|
---|
| 2517 |
|
---|
| 2518 | case '#':
|
---|
| 2519 | if (IS_EVSTR(p, pend)) *q++ = '\\';
|
---|
| 2520 | *q++ = '#';
|
---|
| 2521 | break;
|
---|
| 2522 |
|
---|
| 2523 | default:
|
---|
| 2524 | if (ISPRINT(c)) {
|
---|
| 2525 | *q++ = c;
|
---|
| 2526 | }
|
---|
| 2527 | else {
|
---|
| 2528 | *q++ = '\\';
|
---|
| 2529 | q[2] = '0' + c % 8; c /= 8;
|
---|
| 2530 | q[1] = '0' + c % 8; c /= 8;
|
---|
| 2531 | q[0] = '0' + c % 8;
|
---|
| 2532 | q += 3;
|
---|
| 2533 | }
|
---|
| 2534 | }
|
---|
| 2535 | }
|
---|
| 2536 | *q = '"';
|
---|
| 2537 | return mrb_obj_value(result);
|
---|
| 2538 | }
|
---|
| 2539 |
|
---|
| 2540 | MRB_API mrb_value
|
---|
| 2541 | mrb_str_cat(mrb_state *mrb, mrb_value str, const char *ptr, size_t len)
|
---|
| 2542 | {
|
---|
| 2543 | str_buf_cat(mrb, mrb_str_ptr(str), ptr, len);
|
---|
| 2544 | return str;
|
---|
| 2545 | }
|
---|
| 2546 |
|
---|
| 2547 | MRB_API mrb_value
|
---|
| 2548 | mrb_str_cat_cstr(mrb_state *mrb, mrb_value str, const char *ptr)
|
---|
| 2549 | {
|
---|
| 2550 | return mrb_str_cat(mrb, str, ptr, strlen(ptr));
|
---|
| 2551 | }
|
---|
| 2552 |
|
---|
| 2553 | MRB_API mrb_value
|
---|
| 2554 | mrb_str_cat_str(mrb_state *mrb, mrb_value str, mrb_value str2)
|
---|
| 2555 | {
|
---|
| 2556 | return mrb_str_cat(mrb, str, RSTRING_PTR(str2), RSTRING_LEN(str2));
|
---|
| 2557 | }
|
---|
| 2558 |
|
---|
| 2559 | MRB_API mrb_value
|
---|
| 2560 | mrb_str_append(mrb_state *mrb, mrb_value str1, mrb_value str2)
|
---|
| 2561 | {
|
---|
| 2562 | str2 = mrb_str_to_str(mrb, str2);
|
---|
| 2563 | return mrb_str_cat_str(mrb, str1, str2);
|
---|
| 2564 | }
|
---|
| 2565 |
|
---|
| 2566 | #define CHAR_ESC_LEN 13 /* sizeof(\x{ hex of 32bit unsigned int } \0) */
|
---|
| 2567 |
|
---|
| 2568 | /*
|
---|
| 2569 | * call-seq:
|
---|
| 2570 | * str.inspect -> string
|
---|
| 2571 | *
|
---|
| 2572 | * Returns a printable version of _str_, surrounded by quote marks,
|
---|
| 2573 | * with special characters escaped.
|
---|
| 2574 | *
|
---|
| 2575 | * str = "hello"
|
---|
| 2576 | * str[3] = "\b"
|
---|
| 2577 | * str.inspect #=> "\"hel\\bo\""
|
---|
| 2578 | */
|
---|
| 2579 | mrb_value
|
---|
| 2580 | mrb_str_inspect(mrb_state *mrb, mrb_value str)
|
---|
| 2581 | {
|
---|
| 2582 | const char *p, *pend;
|
---|
| 2583 | char buf[CHAR_ESC_LEN + 1];
|
---|
| 2584 | mrb_value result = mrb_str_new_lit(mrb, "\"");
|
---|
| 2585 |
|
---|
| 2586 | p = RSTRING_PTR(str); pend = RSTRING_END(str);
|
---|
| 2587 | for (;p < pend; p++) {
|
---|
| 2588 | unsigned char c, cc;
|
---|
| 2589 | #ifdef MRB_UTF8_STRING
|
---|
| 2590 | mrb_int clen;
|
---|
| 2591 |
|
---|
| 2592 | clen = utf8len(p, pend);
|
---|
| 2593 | if (clen > 1) {
|
---|
| 2594 | mrb_int i;
|
---|
| 2595 |
|
---|
| 2596 | for (i=0; i<clen; i++) {
|
---|
| 2597 | buf[i] = p[i];
|
---|
| 2598 | }
|
---|
| 2599 | mrb_str_cat(mrb, result, buf, clen);
|
---|
| 2600 | p += clen-1;
|
---|
| 2601 | continue;
|
---|
| 2602 | }
|
---|
| 2603 | #endif
|
---|
| 2604 | c = *p;
|
---|
| 2605 | if (c == '"'|| c == '\\' || (c == '#' && IS_EVSTR(p, pend))) {
|
---|
| 2606 | buf[0] = '\\'; buf[1] = c;
|
---|
| 2607 | mrb_str_cat(mrb, result, buf, 2);
|
---|
| 2608 | continue;
|
---|
| 2609 | }
|
---|
| 2610 | if (ISPRINT(c)) {
|
---|
| 2611 | buf[0] = c;
|
---|
| 2612 | mrb_str_cat(mrb, result, buf, 1);
|
---|
| 2613 | continue;
|
---|
| 2614 | }
|
---|
| 2615 | switch (c) {
|
---|
| 2616 | case '\n': cc = 'n'; break;
|
---|
| 2617 | case '\r': cc = 'r'; break;
|
---|
| 2618 | case '\t': cc = 't'; break;
|
---|
| 2619 | case '\f': cc = 'f'; break;
|
---|
| 2620 | case '\013': cc = 'v'; break;
|
---|
| 2621 | case '\010': cc = 'b'; break;
|
---|
| 2622 | case '\007': cc = 'a'; break;
|
---|
| 2623 | case 033: cc = 'e'; break;
|
---|
| 2624 | default: cc = 0; break;
|
---|
| 2625 | }
|
---|
| 2626 | if (cc) {
|
---|
| 2627 | buf[0] = '\\';
|
---|
| 2628 | buf[1] = (char)cc;
|
---|
| 2629 | mrb_str_cat(mrb, result, buf, 2);
|
---|
| 2630 | continue;
|
---|
| 2631 | }
|
---|
| 2632 | else {
|
---|
| 2633 | buf[0] = '\\';
|
---|
| 2634 | buf[3] = '0' + c % 8; c /= 8;
|
---|
| 2635 | buf[2] = '0' + c % 8; c /= 8;
|
---|
| 2636 | buf[1] = '0' + c % 8;
|
---|
| 2637 | mrb_str_cat(mrb, result, buf, 4);
|
---|
| 2638 | continue;
|
---|
| 2639 | }
|
---|
| 2640 | }
|
---|
| 2641 | mrb_str_cat_lit(mrb, result, "\"");
|
---|
| 2642 |
|
---|
| 2643 | return result;
|
---|
| 2644 | }
|
---|
| 2645 |
|
---|
| 2646 | /*
|
---|
| 2647 | * call-seq:
|
---|
| 2648 | * str.bytes -> array of fixnums
|
---|
| 2649 | *
|
---|
| 2650 | * Returns an array of bytes in _str_.
|
---|
| 2651 | *
|
---|
| 2652 | * str = "hello"
|
---|
| 2653 | * str.bytes #=> [104, 101, 108, 108, 111]
|
---|
| 2654 | */
|
---|
| 2655 | static mrb_value
|
---|
| 2656 | mrb_str_bytes(mrb_state *mrb, mrb_value str)
|
---|
| 2657 | {
|
---|
| 2658 | struct RString *s = mrb_str_ptr(str);
|
---|
| 2659 | mrb_value a = mrb_ary_new_capa(mrb, RSTR_LEN(s));
|
---|
| 2660 | unsigned char *p = (unsigned char *)(RSTR_PTR(s)), *pend = p + RSTR_LEN(s);
|
---|
| 2661 |
|
---|
| 2662 | while (p < pend) {
|
---|
| 2663 | mrb_ary_push(mrb, a, mrb_fixnum_value(p[0]));
|
---|
| 2664 | p++;
|
---|
| 2665 | }
|
---|
| 2666 | return a;
|
---|
| 2667 | }
|
---|
| 2668 |
|
---|
| 2669 | /* ---------------------------*/
|
---|
| 2670 | void
|
---|
| 2671 | mrb_init_string(mrb_state *mrb)
|
---|
| 2672 | {
|
---|
| 2673 | struct RClass *s;
|
---|
| 2674 |
|
---|
| 2675 | mrb_static_assert(RSTRING_EMBED_LEN_MAX < (1 << 5), "pointer size too big for embedded string");
|
---|
| 2676 |
|
---|
| 2677 | mrb->string_class = s = mrb_define_class(mrb, "String", mrb->object_class); /* 15.2.10 */
|
---|
| 2678 | MRB_SET_INSTANCE_TT(s, MRB_TT_STRING);
|
---|
| 2679 |
|
---|
| 2680 | mrb_define_method(mrb, s, "bytesize", mrb_str_bytesize, MRB_ARGS_NONE());
|
---|
| 2681 |
|
---|
| 2682 | mrb_define_method(mrb, s, "<=>", mrb_str_cmp_m, MRB_ARGS_REQ(1)); /* 15.2.10.5.1 */
|
---|
| 2683 | mrb_define_method(mrb, s, "==", mrb_str_equal_m, MRB_ARGS_REQ(1)); /* 15.2.10.5.2 */
|
---|
| 2684 | mrb_define_method(mrb, s, "+", mrb_str_plus_m, MRB_ARGS_REQ(1)); /* 15.2.10.5.4 */
|
---|
| 2685 | mrb_define_method(mrb, s, "*", mrb_str_times, MRB_ARGS_REQ(1)); /* 15.2.10.5.5 */
|
---|
| 2686 | mrb_define_method(mrb, s, "[]", mrb_str_aref_m, MRB_ARGS_ANY()); /* 15.2.10.5.6 */
|
---|
| 2687 | mrb_define_method(mrb, s, "capitalize", mrb_str_capitalize, MRB_ARGS_NONE()); /* 15.2.10.5.7 */
|
---|
| 2688 | mrb_define_method(mrb, s, "capitalize!", mrb_str_capitalize_bang, MRB_ARGS_NONE()); /* 15.2.10.5.8 */
|
---|
| 2689 | mrb_define_method(mrb, s, "chomp", mrb_str_chomp, MRB_ARGS_ANY()); /* 15.2.10.5.9 */
|
---|
| 2690 | mrb_define_method(mrb, s, "chomp!", mrb_str_chomp_bang, MRB_ARGS_ANY()); /* 15.2.10.5.10 */
|
---|
| 2691 | mrb_define_method(mrb, s, "chop", mrb_str_chop, MRB_ARGS_REQ(1)); /* 15.2.10.5.11 */
|
---|
| 2692 | mrb_define_method(mrb, s, "chop!", mrb_str_chop_bang, MRB_ARGS_REQ(1)); /* 15.2.10.5.12 */
|
---|
| 2693 | mrb_define_method(mrb, s, "downcase", mrb_str_downcase, MRB_ARGS_NONE()); /* 15.2.10.5.13 */
|
---|
| 2694 | mrb_define_method(mrb, s, "downcase!", mrb_str_downcase_bang, MRB_ARGS_NONE()); /* 15.2.10.5.14 */
|
---|
| 2695 | mrb_define_method(mrb, s, "empty?", mrb_str_empty_p, MRB_ARGS_NONE()); /* 15.2.10.5.16 */
|
---|
| 2696 | mrb_define_method(mrb, s, "eql?", mrb_str_eql, MRB_ARGS_REQ(1)); /* 15.2.10.5.17 */
|
---|
| 2697 |
|
---|
| 2698 | mrb_define_method(mrb, s, "hash", mrb_str_hash_m, MRB_ARGS_NONE()); /* 15.2.10.5.20 */
|
---|
| 2699 | mrb_define_method(mrb, s, "include?", mrb_str_include, MRB_ARGS_REQ(1)); /* 15.2.10.5.21 */
|
---|
| 2700 | mrb_define_method(mrb, s, "index", mrb_str_index, MRB_ARGS_ANY()); /* 15.2.10.5.22 */
|
---|
| 2701 | mrb_define_method(mrb, s, "initialize", mrb_str_init, MRB_ARGS_REQ(1)); /* 15.2.10.5.23 */
|
---|
| 2702 | mrb_define_method(mrb, s, "initialize_copy", mrb_str_replace, MRB_ARGS_REQ(1)); /* 15.2.10.5.24 */
|
---|
| 2703 | mrb_define_method(mrb, s, "intern", mrb_str_intern, MRB_ARGS_NONE()); /* 15.2.10.5.25 */
|
---|
| 2704 | mrb_define_method(mrb, s, "length", mrb_str_size, MRB_ARGS_NONE()); /* 15.2.10.5.26 */
|
---|
| 2705 | mrb_define_method(mrb, s, "replace", mrb_str_replace, MRB_ARGS_REQ(1)); /* 15.2.10.5.28 */
|
---|
| 2706 | mrb_define_method(mrb, s, "reverse", mrb_str_reverse, MRB_ARGS_NONE()); /* 15.2.10.5.29 */
|
---|
| 2707 | mrb_define_method(mrb, s, "reverse!", mrb_str_reverse_bang, MRB_ARGS_NONE()); /* 15.2.10.5.30 */
|
---|
| 2708 | mrb_define_method(mrb, s, "rindex", mrb_str_rindex, MRB_ARGS_ANY()); /* 15.2.10.5.31 */
|
---|
| 2709 | mrb_define_method(mrb, s, "size", mrb_str_size, MRB_ARGS_NONE()); /* 15.2.10.5.33 */
|
---|
| 2710 | mrb_define_method(mrb, s, "slice", mrb_str_aref_m, MRB_ARGS_ANY()); /* 15.2.10.5.34 */
|
---|
| 2711 | mrb_define_method(mrb, s, "split", mrb_str_split_m, MRB_ARGS_ANY()); /* 15.2.10.5.35 */
|
---|
| 2712 |
|
---|
| 2713 | mrb_define_method(mrb, s, "to_f", mrb_str_to_f, MRB_ARGS_NONE()); /* 15.2.10.5.38 */
|
---|
| 2714 | mrb_define_method(mrb, s, "to_i", mrb_str_to_i, MRB_ARGS_ANY()); /* 15.2.10.5.39 */
|
---|
| 2715 | mrb_define_method(mrb, s, "to_s", mrb_str_to_s, MRB_ARGS_NONE()); /* 15.2.10.5.40 */
|
---|
| 2716 | mrb_define_method(mrb, s, "to_str", mrb_str_to_s, MRB_ARGS_NONE());
|
---|
| 2717 | mrb_define_method(mrb, s, "to_sym", mrb_str_intern, MRB_ARGS_NONE()); /* 15.2.10.5.41 */
|
---|
| 2718 | mrb_define_method(mrb, s, "upcase", mrb_str_upcase, MRB_ARGS_NONE()); /* 15.2.10.5.42 */
|
---|
| 2719 | mrb_define_method(mrb, s, "upcase!", mrb_str_upcase_bang, MRB_ARGS_NONE()); /* 15.2.10.5.43 */
|
---|
| 2720 | mrb_define_method(mrb, s, "inspect", mrb_str_inspect, MRB_ARGS_NONE()); /* 15.2.10.5.46(x) */
|
---|
| 2721 | mrb_define_method(mrb, s, "bytes", mrb_str_bytes, MRB_ARGS_NONE());
|
---|
| 2722 |
|
---|
| 2723 | mrb_define_method(mrb, s, "freeze", mrb_str_freeze, MRB_ARGS_NONE());
|
---|
| 2724 | }
|
---|