Class: String

Inherits:
Object show all
Defined in:
(unknown)

Instance Method Summary collapse

Instance Method Details

#as_blank? ⇒ Boolean

Returns:

  • (Boolean) 


9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
 
# File 'ext/faster_support/core_ext/object/blank/string_blank.c', line 9

static VALUE rb_str_as_blank(VALUE str)
{
  rb_encoding *enc;
  char *s, *e;

  enc = STR_ENC_GET(str);
  s = RSTRING_PTR(str);

  if (!s || RSTRING_LEN(str) == 0) return Qtrue;

  e = RSTRING_END(str);

  while (s < e) {
    int n;
    unsigned int cc = rb_enc_codepoint_len(s, e, &n, enc);

    switch (cc) {
    case 9:
    case 0xa:
    case 0xb:
    case 0xc:
    case 0xd:
    case 0x20:
    case 0x85:
    case 0xa0:
    case 0x1680:
    case 0x2000:
    case 0x2001:
    case 0x2002:
    case 0x2003:
    case 0x2004:
    case 0x2005:
    case 0x2006:
    case 0x2007:
    case 0x2008:
    case 0x2009:
    case 0x200a:
    case 0x2028:
    case 0x2029:
    case 0x202f:
    case 0x205f:
    case 0x3000:
#if RUBY_BEFORE_2_2
    case 0x180e:
#endif
      /* found a blank char */
      break;

    default:
      return Qfalse;
    }

    s += n;
  }

  /* if we get here, all chars were blank chars */
  return Qtrue;
}

#ascii_8bit ⇒ Object Also known as: as_ascii_8bit, as_8bit_ascii 



7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
 
# File 'ext/faster_support/core_ext/string/string.c', line 7

static VALUE rb_str_to_ascii8bit(VALUE str)
{
  rb_encoding *enc;
  VALUE new_str;

  enc = STR_ENC_GET(str);

  if (enc == ascii_8bit_enc) {
    return str;
  }

  if (OBJ_FROZEN(str)) {
    new_str = rb_obj_dup(str);
  }
  else {
    new_str = str;
  }

  rb_check_frozen(new_str);
  rb_enc_associate(new_str, ascii_8bit_enc);
  ENC_CODERANGE_CLEAR(new_str);

  return new_str;
}

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
 
# File 'ext/faster_support/core_ext/object/blank/string_blank.c', line 90

static VALUE rb_str_blank(VALUE str)
{
  FasterSupport_blank_impl impl = FasterSupport_get_blank_impl();

  switch (impl) {
  case Impl_MRI:
    return rb_str_mri_blank(str);
  case Impl_ActiveSupport:
    return rb_str_as_blank(str);
  default:
    break;
  }

  return rb_str_as_blank(str);
}

#mri_blank? ⇒ Boolean

Returns:

  • (Boolean) 


68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
 
# File 'ext/faster_support/core_ext/object/blank/string_blank.c', line 68

static VALUE rb_str_mri_blank(VALUE str)
{
  rb_encoding *enc;
  char *s, *e;

  enc = STR_ENC_GET(str);
  s = RSTRING_PTR(str);
  if (!s || RSTRING_LEN(str) == 0) return Qtrue;

  e = RSTRING_END(str);

  while (s < e) {
    int n;
    unsigned int cc = rb_enc_codepoint_len(s, e, &n, enc);

    if (!rb_isspace(cc) && cc != 0) return Qfalse;
    s += n;
  }

  return Qtrue;
}

#present? ⇒ Boolean

Returns:

  • (Boolean) 


106
107
108
109
 
# File 'ext/faster_support/core_ext/object/blank/string_blank.c', line 106

static VALUE rb_str_present(VALUE str)
{
  return RB_NEGATE(rb_str_blank(str));
}