Mercurial > hg > toybox
annotate kconfig/expr.h @ 902:36993c59a3d3
Tighten up lsusb, default to "y".
author | Rob Landley <rob@landley.net> |
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date | Tue, 14 May 2013 20:42:54 -0500 |
parents | 4d21d59f3206 |
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rev | line source |
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1 /* |
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2 * Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org> |
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3 * Released under the terms of the GNU GPL v2.0. |
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4 */ |
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5 |
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6 #ifndef EXPR_H |
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7 #define EXPR_H |
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8 |
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9 #ifdef __cplusplus |
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10 extern "C" { |
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11 #endif |
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12 |
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13 #include <stdio.h> |
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14 #ifndef __cplusplus |
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15 #include <stdbool.h> |
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16 #endif |
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17 |
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18 struct file { |
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19 struct file *next; |
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20 struct file *parent; |
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21 char *name; |
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22 int lineno; |
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23 int flags; |
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24 }; |
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25 |
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26 #define FILE_BUSY 0x0001 |
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27 #define FILE_SCANNED 0x0002 |
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28 #define FILE_PRINTED 0x0004 |
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29 |
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30 typedef enum tristate { |
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31 no, mod, yes |
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32 } tristate; |
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33 |
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34 enum expr_type { |
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35 E_NONE, E_OR, E_AND, E_NOT, E_EQUAL, E_UNEQUAL, E_CHOICE, E_SYMBOL, E_RANGE |
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36 }; |
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37 |
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38 union expr_data { |
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39 struct expr *expr; |
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40 struct symbol *sym; |
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41 }; |
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42 |
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43 struct expr { |
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44 enum expr_type type; |
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45 union expr_data left, right; |
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46 }; |
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47 |
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48 #define E_OR(dep1, dep2) (((dep1)>(dep2))?(dep1):(dep2)) |
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49 #define E_AND(dep1, dep2) (((dep1)<(dep2))?(dep1):(dep2)) |
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50 #define E_NOT(dep) (2-(dep)) |
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51 |
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52 struct expr_value { |
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53 struct expr *expr; |
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54 tristate tri; |
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55 }; |
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56 |
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57 struct symbol_value { |
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58 void *val; |
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59 tristate tri; |
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60 }; |
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61 |
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62 enum symbol_type { |
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63 S_UNKNOWN, S_BOOLEAN, S_TRISTATE, S_INT, S_HEX, S_STRING, S_OTHER |
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64 }; |
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65 |
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66 enum { |
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67 S_DEF_USER, /* main user value */ |
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68 S_DEF_AUTO, |
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69 }; |
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70 |
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71 struct symbol { |
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72 struct symbol *next; |
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73 char *name; |
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74 char *help; |
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75 enum symbol_type type; |
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76 struct symbol_value curr; |
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77 struct symbol_value def[4]; |
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78 tristate visible; |
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79 int flags; |
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80 struct property *prop; |
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81 struct expr *dep, *dep2; |
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82 struct expr_value rev_dep; |
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83 }; |
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84 |
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85 #define for_all_symbols(i, sym) for (i = 0; i < 257; i++) for (sym = symbol_hash[i]; sym; sym = sym->next) if (sym->type != S_OTHER) |
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86 |
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87 #define SYMBOL_CONST 0x0001 |
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88 #define SYMBOL_CHECK 0x0008 |
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89 #define SYMBOL_CHOICE 0x0010 |
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90 #define SYMBOL_CHOICEVAL 0x0020 |
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91 #define SYMBOL_PRINTED 0x0040 |
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92 #define SYMBOL_VALID 0x0080 |
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93 #define SYMBOL_OPTIONAL 0x0100 |
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94 #define SYMBOL_WRITE 0x0200 |
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95 #define SYMBOL_CHANGED 0x0400 |
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96 #define SYMBOL_AUTO 0x1000 |
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97 #define SYMBOL_CHECKED 0x2000 |
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98 #define SYMBOL_WARNED 0x8000 |
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99 #define SYMBOL_DEF 0x10000 |
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100 #define SYMBOL_DEF_USER 0x10000 |
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101 #define SYMBOL_DEF_AUTO 0x20000 |
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102 #define SYMBOL_DEF3 0x40000 |
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103 #define SYMBOL_DEF4 0x80000 |
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104 |
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105 #define SYMBOL_MAXLENGTH 256 |
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106 #define SYMBOL_HASHSIZE 257 |
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107 #define SYMBOL_HASHMASK 0xff |
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108 |
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109 enum prop_type { |
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110 P_UNKNOWN, P_PROMPT, P_COMMENT, P_MENU, P_DEFAULT, P_CHOICE, P_SELECT, P_RANGE |
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111 }; |
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112 |
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113 struct property { |
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114 struct property *next; |
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115 struct symbol *sym; |
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116 enum prop_type type; |
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117 const char *text; |
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118 struct expr_value visible; |
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119 struct expr *expr; |
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120 struct menu *menu; |
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121 struct file *file; |
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122 int lineno; |
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123 }; |
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124 |
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125 #define for_all_properties(sym, st, tok) \ |
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126 for (st = sym->prop; st; st = st->next) \ |
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127 if (st->type == (tok)) |
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128 #define for_all_defaults(sym, st) for_all_properties(sym, st, P_DEFAULT) |
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129 #define for_all_choices(sym, st) for_all_properties(sym, st, P_CHOICE) |
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130 #define for_all_prompts(sym, st) \ |
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131 for (st = sym->prop; st; st = st->next) \ |
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132 if (st->text) |
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133 |
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134 struct menu { |
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135 struct menu *next; |
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136 struct menu *parent; |
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137 struct menu *list; |
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138 struct symbol *sym; |
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139 struct property *prompt; |
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140 struct expr *dep; |
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141 unsigned int flags; |
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142 //char *help; |
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143 struct file *file; |
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144 int lineno; |
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145 void *data; |
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146 }; |
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147 |
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148 #define MENU_CHANGED 0x0001 |
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149 #define MENU_ROOT 0x0002 |
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150 |
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151 #ifndef SWIG |
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152 |
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153 extern struct file *file_list; |
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154 extern struct file *current_file; |
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155 struct file *lookup_file(const char *name); |
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156 |
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157 extern struct symbol symbol_yes, symbol_no, symbol_mod; |
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158 extern struct symbol *modules_sym; |
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159 extern struct symbol *sym_defconfig_list; |
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160 extern int cdebug; |
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161 struct expr *expr_alloc_symbol(struct symbol *sym); |
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162 struct expr *expr_alloc_one(enum expr_type type, struct expr *ce); |
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163 struct expr *expr_alloc_two(enum expr_type type, struct expr *e1, struct expr *e2); |
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164 struct expr *expr_alloc_comp(enum expr_type type, struct symbol *s1, struct symbol *s2); |
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165 struct expr *expr_alloc_and(struct expr *e1, struct expr *e2); |
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166 struct expr *expr_alloc_or(struct expr *e1, struct expr *e2); |
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167 struct expr *expr_copy(struct expr *org); |
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168 void expr_free(struct expr *e); |
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169 int expr_eq(struct expr *e1, struct expr *e2); |
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170 void expr_eliminate_eq(struct expr **ep1, struct expr **ep2); |
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171 tristate expr_calc_value(struct expr *e); |
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172 struct expr *expr_eliminate_yn(struct expr *e); |
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173 struct expr *expr_trans_bool(struct expr *e); |
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174 struct expr *expr_eliminate_dups(struct expr *e); |
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175 struct expr *expr_transform(struct expr *e); |
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176 int expr_contains_symbol(struct expr *dep, struct symbol *sym); |
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177 bool expr_depends_symbol(struct expr *dep, struct symbol *sym); |
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178 struct expr *expr_extract_eq_and(struct expr **ep1, struct expr **ep2); |
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179 struct expr *expr_extract_eq_or(struct expr **ep1, struct expr **ep2); |
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180 void expr_extract_eq(enum expr_type type, struct expr **ep, struct expr **ep1, struct expr **ep2); |
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181 struct expr *expr_trans_compare(struct expr *e, enum expr_type type, struct symbol *sym); |
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182 |
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183 void expr_fprint(struct expr *e, FILE *out); |
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184 struct gstr; /* forward */ |
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185 void expr_gstr_print(struct expr *e, struct gstr *gs); |
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186 |
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187 static inline int expr_is_yes(struct expr *e) |
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188 { |
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189 return !e || (e->type == E_SYMBOL && e->left.sym == &symbol_yes); |
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190 } |
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191 |
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192 static inline int expr_is_no(struct expr *e) |
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193 { |
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194 return e && (e->type == E_SYMBOL && e->left.sym == &symbol_no); |
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195 } |
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196 #endif |
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197 |
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198 #ifdef __cplusplus |
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199 } |
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200 #endif |
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201 |
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202 #endif /* EXPR_H */ |