Mercurial > hg > toybox
annotate kconfig/menu.c @ 70:a1b464bbef08
Add "echo". Has -n and -e (but not \0123 yet).
author | Rob Landley <rob@landley.net> |
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date | Sat, 20 Jan 2007 18:04:20 -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 #include <stdlib.h> |
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7 #include <string.h> |
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8 |
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9 #define LKC_DIRECT_LINK |
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10 #include "lkc.h" |
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11 |
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12 struct menu rootmenu; |
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13 static struct menu **last_entry_ptr; |
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14 |
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15 struct file *file_list; |
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16 struct file *current_file; |
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17 |
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18 static void menu_warn(struct menu *menu, const char *fmt, ...) |
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19 { |
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20 va_list ap; |
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21 va_start(ap, fmt); |
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22 fprintf(stderr, "%s:%d:warning: ", menu->file->name, menu->lineno); |
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23 vfprintf(stderr, fmt, ap); |
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24 fprintf(stderr, "\n"); |
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25 va_end(ap); |
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26 } |
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27 |
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28 static void prop_warn(struct property *prop, const char *fmt, ...) |
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29 { |
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30 va_list ap; |
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31 va_start(ap, fmt); |
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32 fprintf(stderr, "%s:%d:warning: ", prop->file->name, prop->lineno); |
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33 vfprintf(stderr, fmt, ap); |
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34 fprintf(stderr, "\n"); |
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35 va_end(ap); |
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36 } |
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37 |
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38 void menu_init(void) |
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39 { |
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40 current_entry = current_menu = &rootmenu; |
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41 last_entry_ptr = &rootmenu.list; |
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42 } |
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43 |
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44 void menu_add_entry(struct symbol *sym) |
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45 { |
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46 struct menu *menu; |
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47 |
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48 menu = malloc(sizeof(*menu)); |
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49 memset(menu, 0, sizeof(*menu)); |
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50 menu->sym = sym; |
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51 menu->parent = current_menu; |
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52 menu->file = current_file; |
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53 menu->lineno = zconf_lineno(); |
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54 |
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55 *last_entry_ptr = menu; |
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56 last_entry_ptr = &menu->next; |
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57 current_entry = menu; |
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58 } |
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59 |
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60 void menu_end_entry(void) |
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61 { |
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62 } |
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63 |
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64 struct menu *menu_add_menu(void) |
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65 { |
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66 menu_end_entry(); |
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67 last_entry_ptr = ¤t_entry->list; |
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68 return current_menu = current_entry; |
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69 } |
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70 |
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71 void menu_end_menu(void) |
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72 { |
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73 last_entry_ptr = ¤t_menu->next; |
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74 current_menu = current_menu->parent; |
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75 } |
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76 |
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77 struct expr *menu_check_dep(struct expr *e) |
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78 { |
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79 if (!e) |
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80 return e; |
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81 |
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82 switch (e->type) { |
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83 case E_NOT: |
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84 e->left.expr = menu_check_dep(e->left.expr); |
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85 break; |
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86 case E_OR: |
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87 case E_AND: |
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88 e->left.expr = menu_check_dep(e->left.expr); |
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89 e->right.expr = menu_check_dep(e->right.expr); |
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90 break; |
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91 case E_SYMBOL: |
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92 /* change 'm' into 'm' && MODULES */ |
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93 if (e->left.sym == &symbol_mod) |
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94 return expr_alloc_and(e, expr_alloc_symbol(modules_sym)); |
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95 break; |
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96 default: |
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97 break; |
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98 } |
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99 return e; |
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100 } |
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101 |
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102 void menu_add_dep(struct expr *dep) |
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103 { |
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104 current_entry->dep = expr_alloc_and(current_entry->dep, menu_check_dep(dep)); |
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105 } |
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106 |
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107 void menu_set_type(int type) |
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108 { |
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109 struct symbol *sym = current_entry->sym; |
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110 |
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111 if (sym->type == type) |
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112 return; |
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113 if (sym->type == S_UNKNOWN) { |
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114 sym->type = type; |
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115 return; |
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116 } |
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117 menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'", |
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118 sym->name ? sym->name : "<choice>", |
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119 sym_type_name(sym->type), sym_type_name(type)); |
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120 } |
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121 |
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122 struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep) |
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123 { |
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124 struct property *prop = prop_alloc(type, current_entry->sym); |
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125 |
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126 prop->menu = current_entry; |
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127 prop->expr = expr; |
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128 prop->visible.expr = menu_check_dep(dep); |
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129 |
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130 if (prompt) { |
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131 if (isspace(*prompt)) { |
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132 prop_warn(prop, "leading whitespace ignored"); |
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133 while (isspace(*prompt)) |
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134 prompt++; |
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135 } |
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136 if (current_entry->prompt) |
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137 prop_warn(prop, "prompt redefined"); |
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138 current_entry->prompt = prop; |
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139 } |
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140 prop->text = prompt; |
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141 |
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142 return prop; |
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143 } |
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144 |
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145 struct property *menu_add_prompt(enum prop_type type, char *prompt, struct expr *dep) |
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146 { |
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147 return menu_add_prop(type, prompt, NULL, dep); |
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148 } |
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149 |
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150 void menu_add_expr(enum prop_type type, struct expr *expr, struct expr *dep) |
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151 { |
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152 menu_add_prop(type, NULL, expr, dep); |
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153 } |
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154 |
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155 void menu_add_symbol(enum prop_type type, struct symbol *sym, struct expr *dep) |
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156 { |
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157 menu_add_prop(type, NULL, expr_alloc_symbol(sym), dep); |
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158 } |
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159 |
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160 void menu_add_option(int token, char *arg) |
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161 { |
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162 struct property *prop; |
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163 |
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164 switch (token) { |
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165 case T_OPT_MODULES: |
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166 prop = prop_alloc(P_DEFAULT, modules_sym); |
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167 prop->expr = expr_alloc_symbol(current_entry->sym); |
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168 break; |
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169 case T_OPT_DEFCONFIG_LIST: |
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170 if (!sym_defconfig_list) |
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171 sym_defconfig_list = current_entry->sym; |
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172 else if (sym_defconfig_list != current_entry->sym) |
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173 zconf_error("trying to redefine defconfig symbol"); |
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174 break; |
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175 } |
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176 } |
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177 |
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178 static int menu_range_valid_sym(struct symbol *sym, struct symbol *sym2) |
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179 { |
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180 return sym2->type == S_INT || sym2->type == S_HEX || |
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181 (sym2->type == S_UNKNOWN && sym_string_valid(sym, sym2->name)); |
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182 } |
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183 |
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184 void sym_check_prop(struct symbol *sym) |
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185 { |
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186 struct property *prop; |
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187 struct symbol *sym2; |
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188 for (prop = sym->prop; prop; prop = prop->next) { |
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189 switch (prop->type) { |
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190 case P_DEFAULT: |
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191 if ((sym->type == S_STRING || sym->type == S_INT || sym->type == S_HEX) && |
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192 prop->expr->type != E_SYMBOL) |
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193 prop_warn(prop, |
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194 "default for config symbol '%'" |
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195 " must be a single symbol", sym->name); |
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196 break; |
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197 case P_SELECT: |
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198 sym2 = prop_get_symbol(prop); |
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199 if (sym->type != S_BOOLEAN && sym->type != S_TRISTATE) |
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200 prop_warn(prop, |
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201 "config symbol '%s' uses select, but is " |
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202 "not boolean or tristate", sym->name); |
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203 else if (sym2->type == S_UNKNOWN) |
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204 prop_warn(prop, |
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205 "'select' used by config symbol '%s' " |
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206 "refer to undefined symbol '%s'", |
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207 sym->name, sym2->name); |
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208 else if (sym2->type != S_BOOLEAN && sym2->type != S_TRISTATE) |
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209 prop_warn(prop, |
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210 "'%s' has wrong type. 'select' only " |
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211 "accept arguments of boolean and " |
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212 "tristate type", sym2->name); |
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213 break; |
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214 case P_RANGE: |
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215 if (sym->type != S_INT && sym->type != S_HEX) |
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216 prop_warn(prop, "range is only allowed " |
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217 "for int or hex symbols"); |
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218 if (!menu_range_valid_sym(sym, prop->expr->left.sym) || |
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219 !menu_range_valid_sym(sym, prop->expr->right.sym)) |
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220 prop_warn(prop, "range is invalid"); |
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221 break; |
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222 default: |
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223 ; |
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224 } |
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225 } |
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226 } |
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227 |
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228 void menu_finalize(struct menu *parent) |
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229 { |
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230 struct menu *menu, *last_menu; |
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231 struct symbol *sym; |
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232 struct property *prop; |
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233 struct expr *parentdep, *basedep, *dep, *dep2, **ep; |
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234 |
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235 sym = parent->sym; |
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236 if (parent->list) { |
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237 if (sym && sym_is_choice(sym)) { |
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238 /* find the first choice value and find out choice type */ |
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239 for (menu = parent->list; menu; menu = menu->next) { |
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240 if (menu->sym) { |
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241 current_entry = parent; |
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242 menu_set_type(menu->sym->type); |
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243 current_entry = menu; |
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244 menu_set_type(sym->type); |
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245 break; |
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246 } |
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247 } |
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248 parentdep = expr_alloc_symbol(sym); |
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249 } else if (parent->prompt) |
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250 parentdep = parent->prompt->visible.expr; |
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251 else |
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252 parentdep = parent->dep; |
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253 |
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254 for (menu = parent->list; menu; menu = menu->next) { |
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255 basedep = expr_transform(menu->dep); |
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256 basedep = expr_alloc_and(expr_copy(parentdep), basedep); |
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257 basedep = expr_eliminate_dups(basedep); |
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258 menu->dep = basedep; |
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259 if (menu->sym) |
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260 prop = menu->sym->prop; |
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261 else |
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262 prop = menu->prompt; |
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263 for (; prop; prop = prop->next) { |
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264 if (prop->menu != menu) |
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265 continue; |
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266 dep = expr_transform(prop->visible.expr); |
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267 dep = expr_alloc_and(expr_copy(basedep), dep); |
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268 dep = expr_eliminate_dups(dep); |
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269 if (menu->sym && menu->sym->type != S_TRISTATE) |
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270 dep = expr_trans_bool(dep); |
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271 prop->visible.expr = dep; |
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272 if (prop->type == P_SELECT) { |
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273 struct symbol *es = prop_get_symbol(prop); |
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274 es->rev_dep.expr = expr_alloc_or(es->rev_dep.expr, |
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275 expr_alloc_and(expr_alloc_symbol(menu->sym), expr_copy(dep))); |
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276 } |
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277 } |
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278 } |
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279 for (menu = parent->list; menu; menu = menu->next) |
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280 menu_finalize(menu); |
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281 } else if (sym) { |
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282 basedep = parent->prompt ? parent->prompt->visible.expr : NULL; |
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283 basedep = expr_trans_compare(basedep, E_UNEQUAL, &symbol_no); |
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284 basedep = expr_eliminate_dups(expr_transform(basedep)); |
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285 last_menu = NULL; |
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286 for (menu = parent->next; menu; menu = menu->next) { |
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287 dep = menu->prompt ? menu->prompt->visible.expr : menu->dep; |
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288 if (!expr_contains_symbol(dep, sym)) |
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289 break; |
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290 if (expr_depends_symbol(dep, sym)) |
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291 goto next; |
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292 dep = expr_trans_compare(dep, E_UNEQUAL, &symbol_no); |
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293 dep = expr_eliminate_dups(expr_transform(dep)); |
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294 dep2 = expr_copy(basedep); |
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295 expr_eliminate_eq(&dep, &dep2); |
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296 expr_free(dep); |
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297 if (!expr_is_yes(dep2)) { |
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298 expr_free(dep2); |
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299 break; |
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300 } |
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301 expr_free(dep2); |
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302 next: |
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303 menu_finalize(menu); |
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304 menu->parent = parent; |
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305 last_menu = menu; |
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306 } |
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307 if (last_menu) { |
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308 parent->list = parent->next; |
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309 parent->next = last_menu->next; |
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310 last_menu->next = NULL; |
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311 } |
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312 } |
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313 for (menu = parent->list; menu; menu = menu->next) { |
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314 if (sym && sym_is_choice(sym) && menu->sym) { |
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315 menu->sym->flags |= SYMBOL_CHOICEVAL; |
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316 if (!menu->prompt) |
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317 menu_warn(menu, "choice value must have a prompt"); |
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318 for (prop = menu->sym->prop; prop; prop = prop->next) { |
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319 if (prop->type == P_PROMPT && prop->menu != menu) { |
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320 prop_warn(prop, "choice values " |
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321 "currently only support a " |
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322 "single prompt"); |
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323 } |
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324 if (prop->type == P_DEFAULT) |
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325 prop_warn(prop, "defaults for choice " |
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326 "values not supported"); |
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327 } |
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328 current_entry = menu; |
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329 menu_set_type(sym->type); |
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330 menu_add_symbol(P_CHOICE, sym, NULL); |
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331 prop = sym_get_choice_prop(sym); |
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332 for (ep = &prop->expr; *ep; ep = &(*ep)->left.expr) |
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333 ; |
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334 *ep = expr_alloc_one(E_CHOICE, NULL); |
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335 (*ep)->right.sym = menu->sym; |
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336 } |
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337 if (menu->list && (!menu->prompt || !menu->prompt->text)) { |
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338 for (last_menu = menu->list; ; last_menu = last_menu->next) { |
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339 last_menu->parent = parent; |
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340 if (!last_menu->next) |
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341 break; |
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342 } |
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343 last_menu->next = menu->next; |
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344 menu->next = menu->list; |
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345 menu->list = NULL; |
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346 } |
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347 } |
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348 |
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349 if (sym && !(sym->flags & SYMBOL_WARNED)) { |
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350 if (sym->type == S_UNKNOWN) |
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351 menu_warn(parent, "config symbol defined without type"); |
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352 |
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353 if (sym_is_choice(sym) && !parent->prompt) |
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354 menu_warn(parent, "choice must have a prompt"); |
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355 |
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356 /* Check properties connected to this symbol */ |
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357 sym_check_prop(sym); |
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358 sym->flags |= SYMBOL_WARNED; |
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359 } |
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360 |
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361 if (sym && !sym_is_optional(sym) && parent->prompt) { |
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362 sym->rev_dep.expr = expr_alloc_or(sym->rev_dep.expr, |
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363 expr_alloc_and(parent->prompt->visible.expr, |
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364 expr_alloc_symbol(&symbol_mod))); |
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365 } |
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366 } |
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367 |
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368 bool menu_is_visible(struct menu *menu) |
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369 { |
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370 struct menu *child; |
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371 struct symbol *sym; |
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372 tristate visible; |
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373 |
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374 if (!menu->prompt) |
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375 return false; |
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376 sym = menu->sym; |
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377 if (sym) { |
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378 sym_calc_value(sym); |
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379 visible = menu->prompt->visible.tri; |
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380 } else |
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381 visible = menu->prompt->visible.tri = expr_calc_value(menu->prompt->visible.expr); |
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382 |
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383 if (visible != no) |
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384 return true; |
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385 if (!sym || sym_get_tristate_value(menu->sym) == no) |
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386 return false; |
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387 |
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388 for (child = menu->list; child; child = child->next) |
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389 if (menu_is_visible(child)) |
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390 return true; |
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391 return false; |
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392 } |
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393 |
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394 const char *menu_get_prompt(struct menu *menu) |
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395 { |
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396 if (menu->prompt) |
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397 return _(menu->prompt->text); |
4d21d59f3206
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398 else if (menu->sym) |
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399 return _(menu->sym->name); |
4d21d59f3206
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400 return NULL; |
4d21d59f3206
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401 } |
4d21d59f3206
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402 |
4d21d59f3206
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403 struct menu *menu_get_root_menu(struct menu *menu) |
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404 { |
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405 return &rootmenu; |
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406 } |
4d21d59f3206
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407 |
4d21d59f3206
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408 struct menu *menu_get_parent_menu(struct menu *menu) |
4d21d59f3206
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409 { |
4d21d59f3206
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410 enum prop_type type; |
4d21d59f3206
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411 |
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412 for (; menu != &rootmenu; menu = menu->parent) { |
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413 type = menu->prompt ? menu->prompt->type : 0; |
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414 if (type == P_MENU) |
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415 break; |
4d21d59f3206
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416 } |
4d21d59f3206
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417 return menu; |
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418 } |
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419 |