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author | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-16 18:49:26 +0900 |
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committer | Jari Vetoniemi <jari.vetoniemi@indooratlas.com> | 2020-03-30 00:39:06 +0900 |
commit | fcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch) | |
tree | 64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/ext/-test-/string/cstr.c |
Fresh start
Diffstat (limited to 'jni/ruby/ext/-test-/string/cstr.c')
-rw-r--r-- | jni/ruby/ext/-test-/string/cstr.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/jni/ruby/ext/-test-/string/cstr.c b/jni/ruby/ext/-test-/string/cstr.c new file mode 100644 index 0000000..ba2e46b --- /dev/null +++ b/jni/ruby/ext/-test-/string/cstr.c @@ -0,0 +1,57 @@ +#include "ruby.h" +#include "ruby/encoding.h" + +static VALUE +bug_str_cstr_term(VALUE str) +{ + long len; + char *s; + int c; + rb_encoding *enc; + + rb_str_modify(str); + len = RSTRING_LEN(str); + RSTRING_PTR(str)[len] = 'x'; + s = StringValueCStr(str); + rb_gc(); + enc = rb_enc_get(str); + c = rb_enc_codepoint(&s[len], &s[len+rb_enc_mbminlen(enc)], enc); + return INT2NUM(c); +} + +static VALUE +bug_str_cstr_term_char(VALUE str) +{ + long len; + char *s; + int c; + rb_encoding *enc = rb_enc_get(str); + + RSTRING_GETMEM(str, s, len); + s += len; + len = rb_enc_mbminlen(enc); + c = rb_enc_precise_mbclen(s, s + len, enc); + if (!MBCLEN_CHARFOUND_P(c)) { + c = (unsigned char)*s; + } + else { + c = rb_enc_mbc_to_codepoint(s, s + len, enc); + if (!c) return Qnil; + } + return rb_enc_uint_chr((unsigned int)c, enc); +} + +static VALUE +bug_str_s_cstr_term_char(VALUE self, VALUE str) +{ + Check_Type(str, T_STRING); + return bug_str_cstr_term_char(str); +} + +void +Init_cstr(VALUE klass) +{ + rb_define_method(klass, "cstr_term", bug_str_cstr_term, 0); + rb_define_method(klass, "cstr_term_char", bug_str_cstr_term_char, 0); + rb_define_singleton_method(klass, "cstr_term_char", bug_str_s_cstr_term_char, 1); +} |