mirror of
https://github.com/mruby/mruby
synced 2026-06-08 16:11:16 +00:00
Yukihiro "Matz" Matsumoto
104 lines
3.6 KiB
C
104 lines
3.6 KiB
C
/*
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** mruby/string.h - String class
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**
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** See Copyright Notice in mruby.h
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*/
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#ifndef MRUBY_STRING_H
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#define MRUBY_STRING_H
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#if defined(__cplusplus)
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extern "C" {
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#endif
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#define IS_EVSTR(p,e) ((p) < (e) && (*(p) == '$' || *(p) == '@' || *(p) == '{'))
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extern const char mrb_digitmap[];
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#define RSTRING_EMBED_LEN_MAX ((mrb_int)(sizeof(void*) * 3 - 1))
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struct RString {
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MRB_OBJECT_HEADER;
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union {
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struct {
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mrb_int len;
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union {
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mrb_int capa;
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struct mrb_shared_string *shared;
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} aux;
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char *ptr;
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} heap;
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char ary[RSTRING_EMBED_LEN_MAX + 1];
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} as;
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};
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#define mrb_str_ptr(s) ((struct RString*)(mrb_ptr(s)))
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#define RSTRING(s) ((struct RString*)(mrb_ptr(s)))
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#define RSTRING_PTR(s)\
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((RSTRING(s)->flags & MRB_STR_EMBED) ?\
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RSTRING(s)->as.ary :\
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RSTRING(s)->as.heap.ptr)
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#define RSTRING_LEN(s)\
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((RSTRING(s)->flags & MRB_STR_EMBED) ?\
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(mrb_int)((RSTRING(s)->flags & MRB_STR_EMBED_LEN_MASK) >> MRB_STR_EMBED_LEN_SHIFT) :\
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RSTRING(s)->as.heap.len)
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#define RSTRING_CAPA(s)\
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((RSTRING(s)->flags & MRB_STR_EMBED) ?\
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RSTRING_EMBED_LEN_MAX :\
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RSTRING(s)->as.heap.aux.capa)
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#define RSTRING_END(s) (RSTRING_PTR(s) + RSTRING_LEN(s))
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mrb_int mrb_str_strlen(mrb_state*, struct RString*);
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#define MRB_STR_SHARED 1
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#define MRB_STR_NOFREE 2
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#define MRB_STR_EMBED 4
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#define MRB_STR_EMBED_LEN_MASK 0xf8
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#define MRB_STR_EMBED_LEN_SHIFT 3
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void mrb_gc_free_str(mrb_state*, struct RString*);
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void mrb_str_modify(mrb_state*, struct RString*);
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void mrb_str_concat(mrb_state*, mrb_value, mrb_value);
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mrb_value mrb_str_plus(mrb_state*, mrb_value, mrb_value);
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mrb_value mrb_ptr_to_str(mrb_state *, void*);
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mrb_value mrb_obj_as_string(mrb_state *mrb, mrb_value obj);
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mrb_value mrb_str_resize(mrb_state *mrb, mrb_value str, mrb_int len);
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mrb_value mrb_str_substr(mrb_state *mrb, mrb_value str, mrb_int beg, mrb_int len);
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mrb_value mrb_string_type(mrb_state *mrb, mrb_value str);
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mrb_value mrb_check_string_type(mrb_state *mrb, mrb_value str);
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mrb_value mrb_str_buf_new(mrb_state *mrb, size_t capa);
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mrb_value mrb_str_buf_cat(mrb_state *mrb, mrb_value str, const char *ptr, size_t len);
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char *mrb_string_value_cstr(mrb_state *mrb, mrb_value *ptr);
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char *mrb_string_value_ptr(mrb_state *mrb, mrb_value ptr);
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int mrb_str_offset(mrb_state *mrb, mrb_value str, int pos);
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mrb_value mrb_str_dup(mrb_state *mrb, mrb_value str);
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mrb_value mrb_str_intern(mrb_state *mrb, mrb_value self);
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mrb_value mrb_str_to_inum(mrb_state *mrb, mrb_value str, int base, mrb_bool badcheck);
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double mrb_str_to_dbl(mrb_state *mrb, mrb_value str, mrb_bool badcheck);
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mrb_value mrb_str_to_str(mrb_state *mrb, mrb_value str);
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mrb_int mrb_str_hash(mrb_state *mrb, mrb_value str);
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mrb_value mrb_str_buf_append(mrb_state *mrb, mrb_value str, mrb_value str2);
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mrb_value mrb_str_inspect(mrb_state *mrb, mrb_value str);
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mrb_bool mrb_str_equal(mrb_state *mrb, mrb_value str1, mrb_value str2);
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mrb_value mrb_str_dump(mrb_state *mrb, mrb_value str);
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mrb_value mrb_str_cat(mrb_state *mrb, mrb_value str, const char *ptr, size_t len);
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mrb_value mrb_str_cat_cstr(mrb_state *mrb, mrb_value str, const char *ptr);
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#define mrb_str_cat_lit(mrb, str, lit) mrb_str_cat(mrb, str, lit, mrb_strlen_lit(lit))
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mrb_value mrb_str_append(mrb_state *mrb, mrb_value str, mrb_value str2);
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int mrb_str_cmp(mrb_state *mrb, mrb_value str1, mrb_value str2);
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char *mrb_str_to_cstr(mrb_state *mrb, mrb_value str);
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mrb_value mrb_str_pool(mrb_state *mrb, mrb_value str);
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/* For backward compatibility */
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static inline mrb_value
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mrb_str_cat2(mrb_state *mrb, mrb_value str, const char *ptr) {
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return mrb_str_cat_cstr(mrb, str, ptr);
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}
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#if defined(__cplusplus)
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} /* extern "C" { */
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#endif
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#endif /* MRUBY_STRING_H */
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