1 | /* Mapping tables for EUC-JP handling. |
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2 | Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc. |
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3 | This file is part of the GNU C Library. |
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4 | Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. |
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5 | |
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6 | The GNU C Library is free software; you can redistribute it and/or |
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7 | modify it under the terms of the GNU Lesser General Public |
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8 | License as published by the Free Software Foundation; either |
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9 | version 2.1 of the License, or (at your option) any later version. |
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10 | |
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11 | The GNU C Library is distributed in the hope that it will be useful, |
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12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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14 | Lesser General Public License for more details. |
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15 | |
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16 | You should have received a copy of the GNU Lesser General Public |
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17 | License along with the GNU C Library; if not, write to the Free |
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18 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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19 | 02111-1307 USA. */ |
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20 | |
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21 | #include <dlfcn.h> |
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22 | #include <stdint.h> |
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23 | #include <gconv.h> |
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24 | #include <jis0201.h> |
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25 | #include <jis0208.h> |
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26 | #include <jis0212.h> |
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27 | |
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28 | /* Definitions used in the body of the `gconv' function. */ |
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29 | #define CHARSET_NAME "EUC-JP//" |
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30 | #define FROM_LOOP from_euc_jp |
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31 | #define TO_LOOP to_euc_jp |
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32 | #define DEFINE_INIT 1 |
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33 | #define DEFINE_FINI 1 |
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34 | #define MIN_NEEDED_FROM 1 |
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35 | #define MAX_NEEDED_FROM 3 |
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36 | #define MIN_NEEDED_TO 4 |
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37 | |
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38 | |
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39 | /* First define the conversion function from EUC-JP to UCS4. */ |
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40 | #define MIN_NEEDED_INPUT MIN_NEEDED_FROM |
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41 | #define MAX_NEEDED_INPUT MAX_NEEDED_FROM |
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42 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_TO |
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43 | #define LOOPFCT FROM_LOOP |
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44 | #define BODY \ |
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45 | { \ |
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46 | uint32_t ch = *inptr; \ |
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47 | \ |
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48 | if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f)) \ |
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49 | ++inptr; \ |
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50 | else if (ch == 0xff) \ |
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51 | { \ |
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52 | /* This is illegal. */ \ |
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53 | if (! ignore_errors_p ()) \ |
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54 | { \ |
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55 | result = __GCONV_ILLEGAL_INPUT; \ |
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56 | break; \ |
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57 | } \ |
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58 | \ |
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59 | ++inptr; \ |
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60 | ++*irreversible; \ |
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61 | continue; \ |
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62 | } \ |
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63 | else \ |
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64 | { \ |
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65 | /* Two or more byte character. First test whether the next \ |
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66 | character is also available. */ \ |
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67 | int ch2; \ |
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68 | \ |
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69 | if (__builtin_expect (inptr + 1 >= inend, 0)) \ |
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70 | { \ |
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71 | /* The second character is not available. Store the \ |
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72 | intermediate result. */ \ |
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73 | result = __GCONV_INCOMPLETE_INPUT; \ |
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74 | break; \ |
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75 | } \ |
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76 | \ |
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77 | ch2 = inptr[1]; \ |
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78 | \ |
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79 | /* All second bytes of a multibyte character must be >= 0xa1. */ \ |
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80 | if (__builtin_expect (ch2 < 0xa1, 0)) \ |
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81 | { \ |
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82 | /* This is an illegal character. */ \ |
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83 | if (! ignore_errors_p ()) \ |
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84 | { \ |
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85 | result = __GCONV_ILLEGAL_INPUT; \ |
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86 | break; \ |
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87 | } \ |
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88 | \ |
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89 | ++inptr; \ |
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90 | ++*irreversible; \ |
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91 | continue; \ |
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92 | } \ |
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93 | \ |
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94 | if (ch == 0x8e) \ |
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95 | { \ |
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96 | /* This is code set 2: half-width katakana. */ \ |
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97 | ch = jisx0201_to_ucs4 (ch2); \ |
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98 | if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \ |
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99 | { \ |
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100 | /* Illegal character. */ \ |
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101 | if (! ignore_errors_p ()) \ |
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102 | { \ |
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103 | /* This is an illegal character. */ \ |
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104 | result = __GCONV_ILLEGAL_INPUT; \ |
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105 | break; \ |
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106 | } \ |
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107 | } \ |
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108 | \ |
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109 | inptr += 2; \ |
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110 | } \ |
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111 | else \ |
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112 | { \ |
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113 | const unsigned char *endp; \ |
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114 | \ |
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115 | if (ch == 0x8f) \ |
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116 | { \ |
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117 | /* This is code set 3: JIS X 0212-1990. */ \ |
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118 | endp = inptr + 1; \ |
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119 | \ |
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120 | ch = jisx0212_to_ucs4 (&endp, inend - endp, 0x80); \ |
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121 | } \ |
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122 | else \ |
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123 | { \ |
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124 | /* This is code set 1: JIS X 0208. */ \ |
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125 | endp = inptr; \ |
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126 | \ |
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127 | ch = jisx0208_to_ucs4 (&endp, inend - inptr, 0x80); \ |
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128 | } \ |
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129 | \ |
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130 | if (__builtin_expect (ch, 1) == 0) \ |
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131 | { \ |
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132 | /* Not enough input available. */ \ |
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133 | result = __GCONV_INCOMPLETE_INPUT; \ |
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134 | break; \ |
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135 | } \ |
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136 | if (__builtin_expect (ch, 0) == __UNKNOWN_10646_CHAR) \ |
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137 | { \ |
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138 | /* Illegal character. */ \ |
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139 | if (! ignore_errors_p ()) \ |
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140 | { \ |
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141 | /* This is an illegal character. */ \ |
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142 | result = __GCONV_ILLEGAL_INPUT; \ |
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143 | break; \ |
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144 | } \ |
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145 | \ |
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146 | inptr += 2; \ |
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147 | ++*irreversible; \ |
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148 | continue; \ |
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149 | } \ |
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150 | inptr = endp; \ |
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151 | } \ |
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152 | } \ |
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153 | \ |
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154 | put32 (outptr, ch); \ |
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155 | outptr += 4; \ |
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156 | } |
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157 | #define LOOP_NEED_FLAGS |
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158 | #include <iconv/loop.c> |
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159 | |
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160 | |
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161 | /* Next, define the other direction. */ |
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162 | #define MIN_NEEDED_INPUT MIN_NEEDED_TO |
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163 | #define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM |
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164 | #define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM |
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165 | #define LOOPFCT TO_LOOP |
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166 | #define BODY \ |
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167 | { \ |
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168 | uint32_t ch = get32 (inptr); \ |
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169 | \ |
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170 | if (ch < 0x8e || (ch >= 0x90 && ch <= 0x9f)) \ |
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171 | /* It's plain ASCII or C1. */ \ |
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172 | *outptr++ = ch; \ |
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173 | else if (ch == 0xa5) \ |
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174 | /* YEN sign => backslash */ \ |
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175 | *outptr++ = 0x5c; \ |
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176 | else if (ch == 0x203e) \ |
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177 | /* overscore => asciitilde */ \ |
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178 | *outptr++ = 0x7e; \ |
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179 | else \ |
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180 | { \ |
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181 | /* Try the JIS character sets. */ \ |
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182 | size_t found; \ |
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183 | \ |
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184 | /* See whether we have room for at least two characters. */ \ |
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185 | if (__builtin_expect (outptr + 1 >= outend, 0)) \ |
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186 | { \ |
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187 | result = __GCONV_FULL_OUTPUT; \ |
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188 | break; \ |
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189 | } \ |
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190 | \ |
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191 | found = ucs4_to_jisx0201 (ch, outptr + 1); \ |
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192 | if (found != __UNKNOWN_10646_CHAR) \ |
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193 | { \ |
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194 | /* Yes, it's a JIS 0201 character. Store the shift byte. */ \ |
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195 | *outptr = 0x8e; \ |
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196 | outptr += 2; \ |
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197 | } \ |
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198 | else \ |
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199 | { \ |
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200 | /* No JIS 0201 character. */ \ |
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201 | found = ucs4_to_jisx0208 (ch, outptr, 2); \ |
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202 | /* Please note that we always have enough room for the output. */ \ |
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203 | if (found != __UNKNOWN_10646_CHAR) \ |
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204 | { \ |
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205 | /* It's a JIS 0208 character, adjust it for EUC-JP. */ \ |
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206 | *outptr++ += 0x80; \ |
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207 | *outptr++ += 0x80; \ |
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208 | } \ |
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209 | else \ |
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210 | { \ |
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211 | /* No JIS 0208 character. */ \ |
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212 | found = ucs4_to_jisx0212 (ch, outptr + 1, \ |
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213 | outend - outptr - 1); \ |
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214 | \ |
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215 | if (__builtin_expect (found, 1) == 0) \ |
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216 | { \ |
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217 | /* We ran out of space. */ \ |
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218 | result = __GCONV_FULL_OUTPUT; \ |
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219 | break; \ |
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220 | } \ |
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221 | else if (__builtin_expect (found, 0) != __UNKNOWN_10646_CHAR) \ |
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222 | { \ |
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223 | /* It's a JIS 0212 character, adjust it for EUC-JP. */ \ |
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224 | *outptr++ = 0x8f; \ |
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225 | *outptr++ += 0x80; \ |
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226 | *outptr++ += 0x80; \ |
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227 | } \ |
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228 | else \ |
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229 | { \ |
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230 | UNICODE_TAG_HANDLER (ch, 4); \ |
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231 | \ |
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232 | /* Illegal character. */ \ |
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233 | STANDARD_ERR_HANDLER (4); \ |
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234 | } \ |
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235 | } \ |
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236 | } \ |
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237 | } \ |
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238 | \ |
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239 | inptr += 4; \ |
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240 | } |
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241 | #define LOOP_NEED_FLAGS |
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242 | #include <iconv/loop.c> |
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243 | |
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244 | |
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245 | /* Now define the toplevel functions. */ |
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246 | #include <iconv/skeleton.c> |
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