1 | /* moddef2.c (emx+gcc) -- Copyright (c) 1992-1995 by Eberhard Mattes */
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2 |
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3 | #include <stdio.h>
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4 | #include <string.h>
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5 | #include <sys/moddef.h>
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6 |
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7 | #define FALSE 0
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8 | #define TRUE 1
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9 |
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10 | typedef int _md_callback (struct _md *md, const _md_stmt *stmt,
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11 | _md_token token, void *arg);
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12 |
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13 | static int error (struct _md *md, _md_callback *callback, _md_stmt *stmt,
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14 | _md_token stmt_token, _md_error code, void *arg)
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15 | {
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16 | stmt->error.code = code;
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17 | stmt->error.stmt = stmt_token;
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18 | return callback (md, stmt, _MD_parseerror, arg);
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19 | }
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20 |
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21 | static _md_token sync (struct _md *md)
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22 | {
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23 | _md_token token;
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24 |
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25 | token = _md_get_token (md);
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26 | for (;;)
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27 | switch (token)
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28 | {
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29 | case _MD_BASE:
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30 | case _MD_CODE:
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31 | case _MD_DATA:
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32 | case _MD_DESCRIPTION:
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33 | case _MD_EXETYPE:
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34 | case _MD_EXPORTS:
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35 | case _MD_HEAPSIZE:
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36 | case _MD_IMPORTS:
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37 | case _MD_OLD:
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38 | case _MD_PROTMODE:
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39 | case _MD_REALMODE:
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40 | case _MD_SEGMENTS:
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41 | case _MD_STACKSIZE:
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42 | case _MD_STUB:
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43 | case _MD_eof:
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44 | case _MD_ioerror:
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45 | case _MD_missingquote:
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46 | return token;
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47 | default:
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48 | token = _md_next_token (md);
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49 | break;
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50 | }
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51 | }
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52 |
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53 |
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54 | #define ERROR(CODE) \
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55 | do { result = error (md, callback, &stmt, stmt_token, (CODE), arg); \
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56 | if (result != 0) return result; \
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57 | token = sync (md); goto next_stmt;} while (FALSE)
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58 |
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59 | #define CALLBACK \
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60 | do { result = callback (md, &stmt, stmt_token, arg); \
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61 | if (result != 0) return result; } while (FALSE)
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62 |
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63 | int _md_parse (struct _md *md, _md_callback *callback, void *arg)
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64 | {
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65 | _md_token token, stmt_token;
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66 | _md_stmt stmt;
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67 | const char *s;
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68 | long n;
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69 | int ok, result;
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70 |
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71 | token = _md_get_token (md);
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72 | stmt_token = token;
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73 | switch (stmt_token)
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74 | {
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75 | case _MD_eof:
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76 | ERROR (_MDE_EMPTY);
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77 | break;
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78 |
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79 | case _MD_NAME:
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80 | token = _md_next_token (md);
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81 | stmt.name.name[0] = 0;
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82 | if (token == _MD_quote || token == _MD_word)
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83 | {
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84 | _strncpy (stmt.name.name, _md_get_string (md),
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85 | sizeof (stmt.name.name));
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86 | token = _md_next_token (md);
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87 | }
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88 | switch (token)
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89 | {
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90 | case _MD_WINDOWAPI:
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91 | stmt.name.pmtype = _MDT_WINDOWAPI;
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92 | token = _md_next_token (md);
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93 | break;
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94 | case _MD_WINDOWCOMPAT:
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95 | stmt.name.pmtype = _MDT_WINDOWCOMPAT;
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96 | token = _md_next_token (md);
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97 | break;
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98 | case _MD_NOTWINDOWCOMPAT:
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99 | stmt.name.pmtype = _MDT_NOTWINDOWCOMPAT;
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100 | token = _md_next_token (md);
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101 | break;
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102 | default:
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103 | stmt.name.pmtype = _MDT_DEFAULT;
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104 | break;
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105 | }
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106 | stmt.name.newfiles = FALSE;
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107 | if (token == _MD_NEWFILES)
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108 | {
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109 | stmt.name.newfiles = TRUE;
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110 | token = _md_next_token (md);
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111 | }
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112 | CALLBACK;
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113 | break;
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114 |
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115 | case _MD_LIBRARY:
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116 | token = _md_next_token (md);
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117 | if (token == _MD_quote || token == _MD_word)
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118 | {
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119 | _strncpy (stmt.library.name, _md_get_string (md),
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120 | sizeof (stmt.library.name));
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121 | token = _md_next_token (md);
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122 | }
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123 | switch (token)
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124 | {
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125 | case _MD_INITGLOBAL:
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126 | stmt.library.init = _MDIT_GLOBAL;
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127 | token = _md_next_token (md);
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128 | break;
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129 | case _MD_INITINSTANCE:
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130 | stmt.library.init = _MDIT_INSTANCE;
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131 | token = _md_next_token (md);
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132 | break;
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133 | default:
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134 | stmt.library.init = _MDIT_DEFAULT;
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135 | break;
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136 | }
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137 | switch (token)
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138 | {
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139 | case _MD_TERMGLOBAL:
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140 | stmt.library.term = _MDIT_GLOBAL;
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141 | token = _md_next_token (md);
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142 | break;
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143 | case _MD_TERMINSTANCE:
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144 | stmt.library.term = _MDIT_INSTANCE;
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145 | token = _md_next_token (md);
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146 | break;
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147 | default:
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148 | stmt.library.term = _MDIT_DEFAULT;
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149 | break;
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150 | }
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151 | if (token == _MD_PRIVATELIB)
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152 | token = _md_next_token (md);
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153 | CALLBACK;
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154 | break;
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155 |
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156 | case _MD_VIRTUAL:
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157 | case _MD_PHYSICAL:
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158 | token = _md_next_token (md);
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159 | if (token != _MD_DEVICE)
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160 | ERROR (_MDE_DEVICE_EXPECTED);
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161 | token = _md_next_token (md);
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162 | stmt.device.name[0] = 0;
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163 | if (token == _MD_quote || token == _MD_word)
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164 | {
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165 | _strncpy (stmt.device.name, _md_get_string (md),
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166 | sizeof (stmt.device.name));
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167 | token = _md_next_token (md);
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168 | }
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169 | CALLBACK;
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170 | break;
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171 |
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172 | default:
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173 | break;
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174 | }
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175 |
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176 | next_stmt:
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177 | while (token != _MD_eof)
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178 | {
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179 | stmt_token = token;
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180 | switch (stmt_token)
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181 | {
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182 | case _MD_BASE:
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183 | token = _md_next_token (md);
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184 | if (token != _MD_equal)
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185 | ERROR (_MDE_EQUAL_EXPECTED);
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186 | token = _md_next_token (md);
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187 | if (token != _MD_number)
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188 | ERROR (_MDE_NUMBER_EXPECTED);
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189 | stmt.base.addr = _md_get_number (md);
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190 | token = _md_next_token (md);
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191 | CALLBACK;
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192 | break;
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193 |
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194 | case _MD_CODE:
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195 | token = _md_next_token (md);
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196 | stmt.segment.segname[0] = 0;
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197 | stmt.segment.classname[0] = 0;
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198 | stmt.segment.attr = 0;
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199 | ok = TRUE;
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200 | while (ok)
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201 | {
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202 | switch (token)
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203 | {
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204 | case _MD_CONFORMING:
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205 | stmt.segment.attr |= _MDS_CONFORMING;
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206 | break;
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207 | case _MD_DISCARDABLE:
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208 | stmt.segment.attr |= _MDS_DISCARDABLE;
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209 | break;
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210 | case _MD_EXECUTEONLY:
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211 | stmt.segment.attr |= _MDS_EXECUTEONLY;
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212 | break;
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213 | case _MD_EXECUTEREAD:
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214 | stmt.segment.attr |= _MDS_EXECUTEREAD;
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215 | break;
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216 | case _MD_FIXED:
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217 | stmt.segment.attr |= _MDS_FIXED;
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218 | break;
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219 | case _MD_IOPL:
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220 | stmt.segment.attr |= _MDS_IOPL;
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221 | break;
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222 | case _MD_LOADONCALL:
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223 | stmt.segment.attr |= _MDS_LOADONCALL;
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224 | break;
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225 | case _MD_MOVEABLE:
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226 | stmt.segment.attr |= _MDS_MOVEABLE;
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227 | break;
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228 | case _MD_NOIOPL:
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229 | stmt.segment.attr |= _MDS_NOIOPL;
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230 | break;
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231 | case _MD_NONCONFORMING:
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232 | stmt.segment.attr |= _MDS_NONCONFORMING;
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233 | break;
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234 | case _MD_NONDISCARDABLE:
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235 | stmt.segment.attr |= _MDS_NONDISCARDABLE;
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236 | break;
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237 | case _MD_NONSHARED:
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238 | case _MD_IMPURE:
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239 | stmt.segment.attr |= _MDS_NONSHARED;
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240 | break;
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241 | case _MD_PRELOAD:
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242 | stmt.segment.attr |= _MDS_PRELOAD;
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243 | break;
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244 | case _MD_SHARED:
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245 | case _MD_PURE:
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246 | stmt.segment.attr |= _MDS_SHARED;
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247 | break;
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248 | default:
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249 | ok = FALSE;
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250 | break;
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251 | }
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252 | if (ok)
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253 | token = _md_next_token (md);
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254 | }
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255 | CALLBACK;
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256 | break;
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257 |
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258 | case _MD_DATA:
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259 | token = _md_next_token (md);
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260 | stmt.segment.segname[0] = 0;
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261 | stmt.segment.classname[0] = 0;
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262 | stmt.segment.attr = 0;
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263 | ok = TRUE;
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264 | while (ok)
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265 | {
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266 | switch (token)
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267 | {
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268 | case _MD_FIXED:
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269 | stmt.segment.attr |= _MDS_FIXED;
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270 | break;
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271 | case _MD_IOPL:
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272 | stmt.segment.attr |= _MDS_IOPL;
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273 | break;
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274 | case _MD_LOADONCALL:
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275 | stmt.segment.attr |= _MDS_LOADONCALL;
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276 | break;
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277 | case _MD_MOVEABLE:
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278 | stmt.segment.attr |= _MDS_MOVEABLE;
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279 | break;
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280 | case _MD_MULTIPLE:
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281 | stmt.segment.attr |= _MDS_MULTIPLE;
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282 | break;
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283 | case _MD_NOIOPL:
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284 | stmt.segment.attr |= _MDS_NOIOPL;
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285 | break;
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286 | case _MD_NONE:
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287 | stmt.segment.attr |= _MDS_NONE;
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288 | break;
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289 | case _MD_NONSHARED:
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290 | case _MD_IMPURE:
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291 | stmt.segment.attr |= _MDS_NONSHARED;
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292 | break;
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293 | case _MD_PRELOAD:
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294 | stmt.segment.attr |= _MDS_PRELOAD;
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295 | break;
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296 | case _MD_READONLY:
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297 | stmt.segment.attr |= _MDS_READONLY;
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298 | break;
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299 | case _MD_READWRITE:
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300 | stmt.segment.attr |= _MDS_READWRITE;
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301 | break;
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302 | case _MD_SHARED:
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303 | case _MD_PURE:
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304 | stmt.segment.attr |= _MDS_SHARED;
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305 | break;
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306 | case _MD_SINGLE:
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307 | stmt.segment.attr |= _MDS_SINGLE;
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308 | break;
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309 | default:
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310 | ok = FALSE;
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311 | break;
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312 | }
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313 | if (ok)
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314 | token = _md_next_token (md);
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315 | }
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316 | CALLBACK;
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317 | break;
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318 |
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319 | case _MD_DESCRIPTION:
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320 | token = _md_next_token (md);
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321 | if (token != _MD_quote)
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322 | ERROR (_MDE_STRING_EXPECTED);
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323 | s = _md_get_string (md);
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324 | if (*s == 0 || strlen (s) > 255)
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325 | ERROR (_MDE_STRING_TOO_LONG);
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326 | _strncpy (stmt.descr.string, s, sizeof (stmt.descr.string));
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327 | token = _md_next_token (md);
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328 | CALLBACK;
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329 | break;
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330 |
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331 | case _MD_EXETYPE:
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332 | token = _md_next_token (md);
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333 | switch (token)
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334 | {
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335 | case _MD_OS2:
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336 | stmt.exetype.type = _MDX_OS2;
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337 | token = _md_next_token (md);
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338 | break;
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339 | case _MD_UNKNOWN:
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340 | stmt.exetype.type = _MDX_UNKNOWN;
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341 | token = _md_next_token (md);
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342 | break;
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343 | case _MD_WINDOWS:
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344 | stmt.exetype.type = _MDX_WINDOWS;
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345 | stmt.exetype.major_version = 0;
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346 | stmt.exetype.minor_version = 0;
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347 | token = _md_next_token (md);
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348 | if (token == _MD_number)
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349 | {
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350 | stmt.exetype.major_version = _md_get_number (md);
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351 | token = _md_next_token (md);
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352 | if (token == _MD_dot)
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353 | {
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354 | token = _md_next_token (md);
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355 | if (token == _MD_number)
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356 | {
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357 | stmt.exetype.minor_version = _md_get_number (md);
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358 | token = _md_next_token (md);
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359 | }
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360 | }
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361 | }
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362 | break;
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363 | default:
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364 | stmt.exetype.type = _MDX_DEFAULT;
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365 | break;
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366 | }
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367 | CALLBACK;
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368 | break;
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369 |
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370 | case _MD_EXPORTS:
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371 | token = _md_next_token (md);
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372 | while (token == _MD_quote || token == _MD_word)
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373 | {
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374 | stmt.export.ordinal = 0;
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375 | stmt.export.pwords = 0;
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376 | stmt.export.flags = 0;
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377 | stmt.export.internalname[0] = 0;
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378 | _strncpy (stmt.export.entryname, _md_get_string (md),
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379 | sizeof (stmt.export.entryname));
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380 | token = _md_next_token (md);
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381 | if (token == _MD_equal)
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382 | {
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383 | token = _md_next_token (md);
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384 | if (token != _MD_quote && token != _MD_word)
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385 | ERROR (_MDE_NAME_EXPECTED);
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386 | _strncpy (stmt.export.internalname, _md_get_string (md),
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387 | sizeof (stmt.export.internalname));
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388 | token = _md_next_token (md);
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389 | }
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390 | if (token == _MD_at)
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391 | {
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392 | stmt.export.flags |= _MDEP_ORDINAL;
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393 | token = _md_next_token (md);
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394 | if (token != _MD_number)
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395 | ERROR (_MDE_NUMBER_EXPECTED);
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396 | n = _md_get_number (md);
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397 | if (n < 1 || n > 65535)
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398 | ERROR (_MDE_INVALID_ORDINAL);
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399 | stmt.export.ordinal = n;
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400 | token = _md_next_token (md);
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401 | if (token == _MD_NONAME)
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402 | {
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403 | stmt.export.flags |= _MDEP_NONAME;
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404 | token = _md_next_token (md);
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405 | }
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406 | else if (token == _MD_RESIDENTNAME)
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407 | {
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408 | stmt.export.flags |= _MDEP_RESIDENTNAME;
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409 | token = _md_next_token (md);
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410 | }
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411 | }
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412 | if (token == _MD_NODATA)
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413 | {
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414 | stmt.export.flags |= _MDEP_NODATA;
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415 | token = _md_next_token (md);
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416 | }
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417 | if (token == _MD_number)
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418 | {
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419 | stmt.export.flags |= _MDEP_PWORDS;
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420 | stmt.export.pwords = _md_get_number (md);
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421 | token = _md_next_token (md);
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422 | }
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423 | CALLBACK;
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424 | }
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425 | break;
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426 |
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427 | case _MD_HEAPSIZE:
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428 | token = _md_next_token (md);
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429 | if (token == _MD_number)
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430 | {
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431 | stmt.heapsize.maxval = FALSE;
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432 | stmt.heapsize.size = _md_get_number (md);
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433 | }
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434 | else if (token == _MD_MAXVAL)
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435 | {
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436 | stmt.heapsize.size = 0;
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437 | stmt.heapsize.maxval = TRUE;
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438 | }
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439 | else
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440 | ERROR (_MDE_NUMBER_EXPECTED);
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441 | token = _md_next_token (md);
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442 | CALLBACK;
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443 | break;
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444 |
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445 | case _MD_IMPORTS:
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446 | token = _md_next_token (md);
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447 | while (token == _MD_quote || token == _MD_word)
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448 | {
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449 | _strncpy (stmt.import.modulename, _md_get_string (md),
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450 | sizeof (stmt.import.modulename));
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451 | stmt.import.entryname[0] = 0;
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452 | stmt.import.internalname[0] = 0;
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453 | stmt.import.ordinal = 0;
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454 | stmt.import.flags = 0;
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455 | token = _md_next_token (md);
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456 | if (token == _MD_equal)
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457 | {
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458 | _strncpy (stmt.import.internalname, stmt.import.modulename,
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459 | sizeof (stmt.import.internalname));
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460 | token = _md_next_token (md);
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461 | if (token != _MD_quote && token != _MD_word)
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462 | ERROR (_MDE_NAME_EXPECTED);
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463 | _strncpy (stmt.import.modulename, _md_get_string (md),
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464 | sizeof (stmt.import.modulename));
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465 | token = _md_next_token (md);
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---|
466 | }
|
---|
467 | if (token != _MD_dot)
|
---|
468 | ERROR (_MDE_DOT_EXPECTED);
|
---|
469 | token = _md_next_token (md);
|
---|
470 | if (token == _MD_word)
|
---|
471 | _strncpy (stmt.import.entryname, _md_get_string (md),
|
---|
472 | sizeof (stmt.import.entryname));
|
---|
473 | else if (token == _MD_number)
|
---|
474 | {
|
---|
475 | stmt.import.flags |= _MDIP_ORDINAL;
|
---|
476 | n = _md_get_number (md);
|
---|
477 | if (n < 1 || n > 65535)
|
---|
478 | ERROR (_MDE_INVALID_ORDINAL);
|
---|
479 | stmt.import.ordinal = n;
|
---|
480 | }
|
---|
481 | else
|
---|
482 | ERROR (_MDE_NUMBER_EXPECTED);
|
---|
483 | token = _md_next_token (md);
|
---|
484 | CALLBACK;
|
---|
485 | }
|
---|
486 | break;
|
---|
487 |
|
---|
488 | case _MD_OLD:
|
---|
489 | token = _md_next_token (md);
|
---|
490 | if (token != _MD_quote)
|
---|
491 | ERROR (_MDE_STRING_EXPECTED);
|
---|
492 | _strncpy (stmt.old.name, _md_get_string (md),
|
---|
493 | sizeof (stmt.old.name));
|
---|
494 | token = _md_next_token (md);
|
---|
495 | CALLBACK;
|
---|
496 | break;
|
---|
497 |
|
---|
498 | case _MD_PROTMODE:
|
---|
499 | case _MD_REALMODE:
|
---|
500 | token = _md_next_token (md);
|
---|
501 | CALLBACK;
|
---|
502 | break;
|
---|
503 |
|
---|
504 | case _MD_SEGMENTS:
|
---|
505 | token = _md_next_token (md);
|
---|
506 | while (token == _MD_quote || token == _MD_word)
|
---|
507 | {
|
---|
508 | _strncpy (stmt.segment.segname, _md_get_string (md),
|
---|
509 | sizeof (stmt.segment.segname));
|
---|
510 | token = _md_next_token (md);
|
---|
511 | if (token == _MD_CLASS)
|
---|
512 | {
|
---|
513 | token = _md_next_token (md);
|
---|
514 | if (token != _MD_quote && token != _MD_word)
|
---|
515 | ERROR (_MDE_NAME_EXPECTED);
|
---|
516 | _strncpy (stmt.segment.classname, _md_get_string (md),
|
---|
517 | sizeof (stmt.segment.classname));
|
---|
518 | token = _md_next_token (md);
|
---|
519 | }
|
---|
520 | else
|
---|
521 | stmt.segment.classname[0] = 0;
|
---|
522 | stmt.segment.attr = 0;
|
---|
523 | ok = TRUE;
|
---|
524 | while (ok)
|
---|
525 | {
|
---|
526 | switch (token)
|
---|
527 | {
|
---|
528 | case _MD_ALIAS:
|
---|
529 | stmt.segment.attr |= _MDS_ALIAS;
|
---|
530 | break;
|
---|
531 | case _MD_CONFORMING:
|
---|
532 | stmt.segment.attr |= _MDS_CONFORMING;
|
---|
533 | break;
|
---|
534 | case _MD_DISCARDABLE:
|
---|
535 | stmt.segment.attr |= _MDS_DISCARDABLE;
|
---|
536 | break;
|
---|
537 | case _MD_EXECUTEONLY:
|
---|
538 | stmt.segment.attr |= _MDS_EXECUTEONLY;
|
---|
539 | break;
|
---|
540 | case _MD_EXECUTEREAD:
|
---|
541 | stmt.segment.attr |= _MDS_EXECUTEREAD;
|
---|
542 | break;
|
---|
543 | case _MD_FIXED:
|
---|
544 | stmt.segment.attr |= _MDS_FIXED;
|
---|
545 | break;
|
---|
546 | case _MD_INVALID:
|
---|
547 | stmt.segment.attr |= _MDS_INVALID;
|
---|
548 | break;
|
---|
549 | case _MD_IOPL:
|
---|
550 | stmt.segment.attr |= _MDS_IOPL;
|
---|
551 | break;
|
---|
552 | case _MD_LOADONCALL:
|
---|
553 | stmt.segment.attr |= _MDS_LOADONCALL;
|
---|
554 | break;
|
---|
555 | case _MD_MIXED1632:
|
---|
556 | stmt.segment.attr |= _MDS_MIXED1632;
|
---|
557 | break;
|
---|
558 | case _MD_MOVEABLE:
|
---|
559 | stmt.segment.attr |= _MDS_MOVEABLE;
|
---|
560 | break;
|
---|
561 | case _MD_NOIOPL:
|
---|
562 | stmt.segment.attr |= _MDS_NOIOPL;
|
---|
563 | break;
|
---|
564 | case _MD_NONCONFORMING:
|
---|
565 | stmt.segment.attr |= _MDS_NONCONFORMING;
|
---|
566 | break;
|
---|
567 | case _MD_NONDISCARDABLE:
|
---|
568 | stmt.segment.attr |= _MDS_NONDISCARDABLE;
|
---|
569 | break;
|
---|
570 | case _MD_NONSHARED:
|
---|
571 | case _MD_IMPURE:
|
---|
572 | stmt.segment.attr |= _MDS_NONSHARED;
|
---|
573 | break;
|
---|
574 | case _MD_PRELOAD:
|
---|
575 | stmt.segment.attr |= _MDS_PRELOAD;
|
---|
576 | break;
|
---|
577 | case _MD_READONLY:
|
---|
578 | stmt.segment.attr |= _MDS_READONLY;
|
---|
579 | break;
|
---|
580 | case _MD_READWRITE:
|
---|
581 | stmt.segment.attr |= _MDS_READWRITE;
|
---|
582 | break;
|
---|
583 | case _MD_SHARED:
|
---|
584 | case _MD_PURE:
|
---|
585 | stmt.segment.attr |= _MDS_SHARED;
|
---|
586 | break;
|
---|
587 | default:
|
---|
588 | ok = FALSE;
|
---|
589 | break;
|
---|
590 | }
|
---|
591 | if (ok)
|
---|
592 | token = _md_next_token (md);
|
---|
593 | }
|
---|
594 | CALLBACK;
|
---|
595 | }
|
---|
596 | break;
|
---|
597 |
|
---|
598 | case _MD_STACKSIZE:
|
---|
599 | token = _md_next_token (md);
|
---|
600 | if (token != _MD_number)
|
---|
601 | ERROR (_MDE_NUMBER_EXPECTED);
|
---|
602 | stmt.stacksize.size = _md_get_number (md);
|
---|
603 | token = _md_next_token (md);
|
---|
604 | CALLBACK;
|
---|
605 | break;
|
---|
606 |
|
---|
607 | case _MD_STUB:
|
---|
608 | token = _md_next_token (md);
|
---|
609 | if (token == _MD_quote)
|
---|
610 | {
|
---|
611 | _strncpy (stmt.stub.name, _md_get_string (md),
|
---|
612 | sizeof (stmt.stub.name));
|
---|
613 | stmt.stub.none = FALSE;
|
---|
614 | }
|
---|
615 | else if (token == _MD_NONE)
|
---|
616 | {
|
---|
617 | stmt.stub.name[0] = 0;
|
---|
618 | stmt.stub.none = TRUE;
|
---|
619 | }
|
---|
620 | else
|
---|
621 | ERROR (_MDE_STRING_EXPECTED);
|
---|
622 | token = _md_next_token (md);
|
---|
623 | CALLBACK;
|
---|
624 | break;
|
---|
625 |
|
---|
626 | case _MD_ioerror:
|
---|
627 | ERROR (_MDE_IO_ERROR);
|
---|
628 | break;
|
---|
629 |
|
---|
630 | case _MD_missingquote:
|
---|
631 | ERROR (_MDE_MISSING_QUOTE);
|
---|
632 | break;
|
---|
633 |
|
---|
634 | default:
|
---|
635 | ERROR (_MDE_INVALID_STMT);
|
---|
636 | }
|
---|
637 | }
|
---|
638 | return 0;
|
---|
639 | }
|
---|