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 <ctype.h>
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7 | #include <stdlib.h>
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8 | #include <string.h>
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9 | #include <regex.h>
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10 | #include <sys/utsname.h>
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11 |
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12 | #define LKC_DIRECT_LINK
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13 | #include "lkc.h"
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14 |
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15 | struct symbol symbol_yes = {
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16 | .name = "y",
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17 | .curr = { "y", yes },
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18 | .flags = SYMBOL_YES|SYMBOL_VALID,
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19 | }, symbol_mod = {
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20 | .name = "m",
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21 | .curr = { "m", mod },
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22 | .flags = SYMBOL_MOD|SYMBOL_VALID,
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23 | }, symbol_no = {
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24 | .name = "n",
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25 | .curr = { "n", no },
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26 | .flags = SYMBOL_NO|SYMBOL_VALID,
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27 | }, symbol_empty = {
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28 | .name = "",
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29 | .curr = { "", no },
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30 | .flags = SYMBOL_VALID,
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31 | };
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32 |
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33 | int sym_change_count;
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34 | struct symbol *modules_sym;
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35 | tristate modules_val;
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36 |
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37 | void sym_add_default(struct symbol *sym, const char *def)
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38 | {
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39 | struct property *prop = prop_alloc(P_DEFAULT, sym);
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40 |
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41 | prop->expr = expr_alloc_symbol(sym_lookup(def, 1));
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42 | }
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43 |
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44 | void sym_init(void)
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45 | {
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46 | struct symbol *sym;
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47 | struct utsname uts;
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48 | char *p;
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49 | static bool inited = false;
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50 |
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51 | if (inited)
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52 | return;
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53 | inited = true;
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54 |
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55 | uname(&uts);
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56 |
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57 | sym = sym_lookup("ARCH", 0);
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58 | sym->type = S_STRING;
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59 | sym->flags |= SYMBOL_AUTO;
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60 | p = getenv("ARCH");
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61 | if (p)
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62 | sym_add_default(sym, p);
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63 |
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64 | sym = sym_lookup("KERNELVERSION", 0);
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65 | sym->type = S_STRING;
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66 | sym->flags |= SYMBOL_AUTO;
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67 | p = getenv("KERNELVERSION");
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68 | if (p)
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69 | sym_add_default(sym, p);
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70 |
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71 | sym = sym_lookup("UNAME_RELEASE", 0);
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72 | sym->type = S_STRING;
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73 | sym->flags |= SYMBOL_AUTO;
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74 | sym_add_default(sym, uts.release);
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75 | }
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76 |
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77 | enum symbol_type sym_get_type(struct symbol *sym)
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78 | {
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79 | enum symbol_type type = sym->type;
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80 |
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81 | if (type == S_TRISTATE) {
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82 | if (sym_is_choice_value(sym) && sym->visible == yes)
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83 | type = S_BOOLEAN;
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84 | else if (modules_val == no)
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85 | type = S_BOOLEAN;
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86 | }
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87 | return type;
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88 | }
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89 |
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90 | const char *sym_type_name(enum symbol_type type)
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91 | {
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92 | switch (type) {
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93 | case S_BOOLEAN:
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94 | return "boolean";
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95 | case S_TRISTATE:
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96 | return "tristate";
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97 | case S_INT:
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98 | return "integer";
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99 | case S_HEX:
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100 | return "hex";
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101 | case S_STRING:
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102 | return "string";
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103 | case S_UNKNOWN:
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104 | return "unknown";
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105 | case S_OTHER:
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106 | break;
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107 | }
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108 | return "???";
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109 | }
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110 |
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111 | struct property *sym_get_choice_prop(struct symbol *sym)
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112 | {
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113 | struct property *prop;
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114 |
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115 | for_all_choices(sym, prop)
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116 | return prop;
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117 | return NULL;
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118 | }
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119 |
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120 | struct property *sym_get_default_prop(struct symbol *sym)
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121 | {
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122 | struct property *prop;
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123 |
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124 | for_all_defaults(sym, prop) {
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125 | prop->visible.tri = expr_calc_value(prop->visible.expr);
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126 | if (prop->visible.tri != no)
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127 | return prop;
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128 | }
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129 | return NULL;
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130 | }
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131 |
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132 | struct property *sym_get_range_prop(struct symbol *sym)
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133 | {
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134 | struct property *prop;
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135 |
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136 | for_all_properties(sym, prop, P_RANGE) {
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137 | prop->visible.tri = expr_calc_value(prop->visible.expr);
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138 | if (prop->visible.tri != no)
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139 | return prop;
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140 | }
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141 | return NULL;
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142 | }
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143 |
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144 | static int sym_get_range_val(struct symbol *sym, int base)
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145 | {
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146 | sym_calc_value(sym);
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147 | switch (sym->type) {
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148 | case S_INT:
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149 | base = 10;
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150 | break;
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151 | case S_HEX:
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152 | base = 16;
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153 | break;
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154 | default:
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155 | break;
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156 | }
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157 | return strtol(sym->curr.val, NULL, base);
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158 | }
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159 |
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160 | static void sym_validate_range(struct symbol *sym)
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161 | {
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162 | struct property *prop;
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163 | int base, val, val2;
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164 | char str[64];
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165 |
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166 | switch (sym->type) {
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167 | case S_INT:
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168 | base = 10;
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169 | break;
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170 | case S_HEX:
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171 | base = 16;
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172 | break;
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173 | default:
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174 | return;
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175 | }
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176 | prop = sym_get_range_prop(sym);
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177 | if (!prop)
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178 | return;
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179 | val = strtol(sym->curr.val, NULL, base);
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180 | val2 = sym_get_range_val(prop->expr->left.sym, base);
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181 | if (val >= val2) {
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182 | val2 = sym_get_range_val(prop->expr->right.sym, base);
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183 | if (val <= val2)
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184 | return;
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185 | }
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186 | if (sym->type == S_INT)
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187 | sprintf(str, "%d", val2);
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188 | else
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189 | sprintf(str, "0x%x", val2);
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190 | sym->curr.val = strdup(str);
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191 | }
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192 |
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193 | static void sym_calc_visibility(struct symbol *sym)
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194 | {
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195 | struct property *prop;
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196 | tristate tri;
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197 |
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198 | /* any prompt visible? */
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199 | tri = no;
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200 | for_all_prompts(sym, prop) {
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201 | prop->visible.tri = expr_calc_value(prop->visible.expr);
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202 | tri = E_OR(tri, prop->visible.tri);
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203 | }
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204 | if (tri == mod && (sym->type != S_TRISTATE || modules_val == no))
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205 | tri = yes;
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206 | if (sym->visible != tri) {
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207 | sym->visible = tri;
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208 | sym_set_changed(sym);
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209 | }
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210 | if (sym_is_choice_value(sym))
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211 | return;
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212 | tri = no;
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213 | if (sym->rev_dep.expr)
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214 | tri = expr_calc_value(sym->rev_dep.expr);
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215 | if (tri == mod && sym_get_type(sym) == S_BOOLEAN)
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216 | tri = yes;
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217 | if (sym->rev_dep.tri != tri) {
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218 | sym->rev_dep.tri = tri;
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219 | sym_set_changed(sym);
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220 | }
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221 | }
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222 |
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223 | static struct symbol *sym_calc_choice(struct symbol *sym)
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224 | {
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225 | struct symbol *def_sym;
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226 | struct property *prop;
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227 | struct expr *e;
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228 |
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229 | /* is the user choice visible? */
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230 | def_sym = sym->user.val;
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231 | if (def_sym) {
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232 | sym_calc_visibility(def_sym);
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233 | if (def_sym->visible != no)
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234 | return def_sym;
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235 | }
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236 |
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237 | /* any of the defaults visible? */
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238 | for_all_defaults(sym, prop) {
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239 | prop->visible.tri = expr_calc_value(prop->visible.expr);
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240 | if (prop->visible.tri == no)
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241 | continue;
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242 | def_sym = prop_get_symbol(prop);
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243 | sym_calc_visibility(def_sym);
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244 | if (def_sym->visible != no)
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245 | return def_sym;
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246 | }
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247 |
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248 | /* just get the first visible value */
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249 | prop = sym_get_choice_prop(sym);
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250 | for (e = prop->expr; e; e = e->left.expr) {
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251 | def_sym = e->right.sym;
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252 | sym_calc_visibility(def_sym);
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253 | if (def_sym->visible != no)
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254 | return def_sym;
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255 | }
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256 |
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257 | /* no choice? reset tristate value */
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258 | sym->curr.tri = no;
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259 | return NULL;
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260 | }
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261 |
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262 | void sym_calc_value(struct symbol *sym)
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263 | {
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264 | struct symbol_value newval, oldval;
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265 | struct property *prop;
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266 | struct expr *e;
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267 |
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268 | if (!sym)
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269 | return;
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270 |
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271 | if (sym->flags & SYMBOL_VALID)
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272 | return;
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273 | sym->flags |= SYMBOL_VALID;
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274 |
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275 | oldval = sym->curr;
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276 |
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277 | switch (sym->type) {
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278 | case S_INT:
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279 | case S_HEX:
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280 | case S_STRING:
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281 | newval = symbol_empty.curr;
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282 | break;
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283 | case S_BOOLEAN:
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284 | case S_TRISTATE:
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285 | newval = symbol_no.curr;
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286 | break;
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287 | default:
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288 | sym->curr.val = sym->name;
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289 | sym->curr.tri = no;
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290 | return;
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291 | }
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292 | if (!sym_is_choice_value(sym))
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293 | sym->flags &= ~SYMBOL_WRITE;
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294 |
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295 | sym_calc_visibility(sym);
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296 |
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297 | /* set default if recursively called */
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298 | sym->curr = newval;
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299 |
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300 | switch (sym_get_type(sym)) {
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301 | case S_BOOLEAN:
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302 | case S_TRISTATE:
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303 | if (sym_is_choice_value(sym) && sym->visible == yes) {
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304 | prop = sym_get_choice_prop(sym);
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305 | newval.tri = (prop_get_symbol(prop)->curr.val == sym) ? yes : no;
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306 | } else if (E_OR(sym->visible, sym->rev_dep.tri) != no) {
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307 | sym->flags |= SYMBOL_WRITE;
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308 | if (sym_has_value(sym))
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309 | newval.tri = sym->user.tri;
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310 | else if (!sym_is_choice(sym)) {
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311 | prop = sym_get_default_prop(sym);
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312 | if (prop)
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313 | newval.tri = expr_calc_value(prop->expr);
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314 | }
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315 | newval.tri = E_OR(E_AND(newval.tri, sym->visible), sym->rev_dep.tri);
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316 | } else if (!sym_is_choice(sym)) {
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317 | prop = sym_get_default_prop(sym);
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318 | if (prop) {
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319 | sym->flags |= SYMBOL_WRITE;
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320 | newval.tri = expr_calc_value(prop->expr);
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321 | }
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322 | }
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323 | if (newval.tri == mod && sym_get_type(sym) == S_BOOLEAN)
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324 | newval.tri = yes;
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325 | break;
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326 | case S_STRING:
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327 | case S_HEX:
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328 | case S_INT:
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329 | if (sym->visible != no) {
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330 | sym->flags |= SYMBOL_WRITE;
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331 | if (sym_has_value(sym)) {
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332 | newval.val = sym->user.val;
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333 | break;
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334 | }
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335 | }
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336 | prop = sym_get_default_prop(sym);
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337 | if (prop) {
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338 | struct symbol *ds = prop_get_symbol(prop);
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339 | if (ds) {
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340 | sym->flags |= SYMBOL_WRITE;
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341 | sym_calc_value(ds);
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342 | newval.val = ds->curr.val;
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343 | }
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344 | }
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345 | break;
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346 | default:
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347 | ;
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348 | }
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349 |
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350 | sym->curr = newval;
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351 | if (sym_is_choice(sym) && newval.tri == yes)
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352 | sym->curr.val = sym_calc_choice(sym);
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353 | sym_validate_range(sym);
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354 |
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355 | if (memcmp(&oldval, &sym->curr, sizeof(oldval)))
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356 | sym_set_changed(sym);
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357 | if (modules_sym == sym)
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358 | modules_val = modules_sym->curr.tri;
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359 |
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360 | if (sym_is_choice(sym)) {
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361 | int flags = sym->flags & (SYMBOL_CHANGED | SYMBOL_WRITE);
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362 | prop = sym_get_choice_prop(sym);
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363 | for (e = prop->expr; e; e = e->left.expr) {
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364 | e->right.sym->flags |= flags;
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365 | if (flags & SYMBOL_CHANGED)
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366 | sym_set_changed(e->right.sym);
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367 | }
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368 | }
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369 | }
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370 |
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371 | void sym_clear_all_valid(void)
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372 | {
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373 | struct symbol *sym;
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374 | int i;
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375 |
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376 | for_all_symbols(i, sym)
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377 | sym->flags &= ~SYMBOL_VALID;
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378 | sym_change_count++;
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379 | if (modules_sym)
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380 | sym_calc_value(modules_sym);
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381 | }
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382 |
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383 | void sym_set_changed(struct symbol *sym)
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384 | {
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385 | struct property *prop;
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386 |
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387 | sym->flags |= SYMBOL_CHANGED;
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388 | for (prop = sym->prop; prop; prop = prop->next) {
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389 | if (prop->menu)
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390 | prop->menu->flags |= MENU_CHANGED;
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391 | }
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392 | }
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393 |
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394 | void sym_set_all_changed(void)
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395 | {
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396 | struct symbol *sym;
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397 | int i;
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398 |
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399 | for_all_symbols(i, sym)
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400 | sym_set_changed(sym);
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401 | }
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402 |
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403 | bool sym_tristate_within_range(struct symbol *sym, tristate val)
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404 | {
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405 | int type = sym_get_type(sym);
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406 |
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407 | if (sym->visible == no)
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408 | return false;
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409 |
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410 | if (type != S_BOOLEAN && type != S_TRISTATE)
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411 | return false;
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412 |
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413 | if (type == S_BOOLEAN && val == mod)
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414 | return false;
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415 | if (sym->visible <= sym->rev_dep.tri)
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416 | return false;
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417 | if (sym_is_choice_value(sym) && sym->visible == yes)
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418 | return val == yes;
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419 | return val >= sym->rev_dep.tri && val <= sym->visible;
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420 | }
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421 |
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422 | bool sym_set_tristate_value(struct symbol *sym, tristate val)
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423 | {
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424 | tristate oldval = sym_get_tristate_value(sym);
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425 |
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426 | if (oldval != val && !sym_tristate_within_range(sym, val))
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427 | return false;
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428 |
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429 | if (sym->flags & SYMBOL_NEW) {
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430 | sym->flags &= ~SYMBOL_NEW;
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431 | sym_set_changed(sym);
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432 | }
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433 | /*
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434 | * setting a choice value also resets the new flag of the choice
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435 | * symbol and all other choice values.
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436 | */
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437 | if (sym_is_choice_value(sym) && val == yes) {
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438 | struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
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439 | struct property *prop;
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440 | struct expr *e;
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441 |
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442 | cs->user.val = sym;
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443 | cs->flags &= ~SYMBOL_NEW;
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444 | prop = sym_get_choice_prop(cs);
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445 | for (e = prop->expr; e; e = e->left.expr) {
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446 | if (e->right.sym->visible != no)
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447 | e->right.sym->flags &= ~SYMBOL_NEW;
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448 | }
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449 | }
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450 |
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451 | sym->user.tri = val;
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452 | if (oldval != val) {
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453 | sym_clear_all_valid();
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454 | if (sym == modules_sym)
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455 | sym_set_all_changed();
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456 | }
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457 |
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458 | return true;
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459 | }
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460 |
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461 | tristate sym_toggle_tristate_value(struct symbol *sym)
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462 | {
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463 | tristate oldval, newval;
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464 |
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465 | oldval = newval = sym_get_tristate_value(sym);
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466 | do {
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467 | switch (newval) {
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468 | case no:
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469 | newval = mod;
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470 | break;
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471 | case mod:
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472 | newval = yes;
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473 | break;
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474 | case yes:
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475 | newval = no;
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476 | break;
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477 | }
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478 | if (sym_set_tristate_value(sym, newval))
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479 | break;
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480 | } while (oldval != newval);
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481 | return newval;
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482 | }
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483 |
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484 | bool sym_string_valid(struct symbol *sym, const char *str)
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485 | {
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486 | signed char ch;
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487 |
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488 | switch (sym->type) {
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489 | case S_STRING:
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490 | return true;
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491 | case S_INT:
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492 | ch = *str++;
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493 | if (ch == '-')
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494 | ch = *str++;
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---|
495 | if (!isdigit(ch))
|
---|
496 | return false;
|
---|
497 | if (ch == '0' && *str != 0)
|
---|
498 | return false;
|
---|
499 | while ((ch = *str++)) {
|
---|
500 | if (!isdigit(ch))
|
---|
501 | return false;
|
---|
502 | }
|
---|
503 | return true;
|
---|
504 | case S_HEX:
|
---|
505 | if (str[0] == '0' && (str[1] == 'x' || str[1] == 'X'))
|
---|
506 | str += 2;
|
---|
507 | ch = *str++;
|
---|
508 | do {
|
---|
509 | if (!isxdigit(ch))
|
---|
510 | return false;
|
---|
511 | } while ((ch = *str++));
|
---|
512 | return true;
|
---|
513 | case S_BOOLEAN:
|
---|
514 | case S_TRISTATE:
|
---|
515 | switch (str[0]) {
|
---|
516 | case 'y': case 'Y':
|
---|
517 | case 'm': case 'M':
|
---|
518 | case 'n': case 'N':
|
---|
519 | return true;
|
---|
520 | }
|
---|
521 | return false;
|
---|
522 | default:
|
---|
523 | return false;
|
---|
524 | }
|
---|
525 | }
|
---|
526 |
|
---|
527 | bool sym_string_within_range(struct symbol *sym, const char *str)
|
---|
528 | {
|
---|
529 | struct property *prop;
|
---|
530 | int val;
|
---|
531 |
|
---|
532 | switch (sym->type) {
|
---|
533 | case S_STRING:
|
---|
534 | return sym_string_valid(sym, str);
|
---|
535 | case S_INT:
|
---|
536 | if (!sym_string_valid(sym, str))
|
---|
537 | return false;
|
---|
538 | prop = sym_get_range_prop(sym);
|
---|
539 | if (!prop)
|
---|
540 | return true;
|
---|
541 | val = strtol(str, NULL, 10);
|
---|
542 | return val >= sym_get_range_val(prop->expr->left.sym, 10) &&
|
---|
543 | val <= sym_get_range_val(prop->expr->right.sym, 10);
|
---|
544 | case S_HEX:
|
---|
545 | if (!sym_string_valid(sym, str))
|
---|
546 | return false;
|
---|
547 | prop = sym_get_range_prop(sym);
|
---|
548 | if (!prop)
|
---|
549 | return true;
|
---|
550 | val = strtol(str, NULL, 16);
|
---|
551 | return val >= sym_get_range_val(prop->expr->left.sym, 16) &&
|
---|
552 | val <= sym_get_range_val(prop->expr->right.sym, 16);
|
---|
553 | case S_BOOLEAN:
|
---|
554 | case S_TRISTATE:
|
---|
555 | switch (str[0]) {
|
---|
556 | case 'y': case 'Y':
|
---|
557 | return sym_tristate_within_range(sym, yes);
|
---|
558 | case 'm': case 'M':
|
---|
559 | return sym_tristate_within_range(sym, mod);
|
---|
560 | case 'n': case 'N':
|
---|
561 | return sym_tristate_within_range(sym, no);
|
---|
562 | }
|
---|
563 | return false;
|
---|
564 | default:
|
---|
565 | return false;
|
---|
566 | }
|
---|
567 | }
|
---|
568 |
|
---|
569 | bool sym_set_string_value(struct symbol *sym, const char *newval)
|
---|
570 | {
|
---|
571 | const char *oldval;
|
---|
572 | char *val;
|
---|
573 | int size;
|
---|
574 |
|
---|
575 | switch (sym->type) {
|
---|
576 | case S_BOOLEAN:
|
---|
577 | case S_TRISTATE:
|
---|
578 | switch (newval[0]) {
|
---|
579 | case 'y': case 'Y':
|
---|
580 | return sym_set_tristate_value(sym, yes);
|
---|
581 | case 'm': case 'M':
|
---|
582 | return sym_set_tristate_value(sym, mod);
|
---|
583 | case 'n': case 'N':
|
---|
584 | return sym_set_tristate_value(sym, no);
|
---|
585 | }
|
---|
586 | return false;
|
---|
587 | default:
|
---|
588 | ;
|
---|
589 | }
|
---|
590 |
|
---|
591 | if (!sym_string_within_range(sym, newval))
|
---|
592 | return false;
|
---|
593 |
|
---|
594 | if (sym->flags & SYMBOL_NEW) {
|
---|
595 | sym->flags &= ~SYMBOL_NEW;
|
---|
596 | sym_set_changed(sym);
|
---|
597 | }
|
---|
598 |
|
---|
599 | oldval = sym->user.val;
|
---|
600 | size = strlen(newval) + 1;
|
---|
601 | if (sym->type == S_HEX && (newval[0] != '0' || (newval[1] != 'x' && newval[1] != 'X'))) {
|
---|
602 | size += 2;
|
---|
603 | sym->user.val = val = malloc(size);
|
---|
604 | *val++ = '0';
|
---|
605 | *val++ = 'x';
|
---|
606 | } else if (!oldval || strcmp(oldval, newval))
|
---|
607 | sym->user.val = val = malloc(size);
|
---|
608 | else
|
---|
609 | return true;
|
---|
610 |
|
---|
611 | strcpy(val, newval);
|
---|
612 | free((void *)oldval);
|
---|
613 | sym_clear_all_valid();
|
---|
614 |
|
---|
615 | return true;
|
---|
616 | }
|
---|
617 |
|
---|
618 | const char *sym_get_string_value(struct symbol *sym)
|
---|
619 | {
|
---|
620 | tristate val;
|
---|
621 |
|
---|
622 | switch (sym->type) {
|
---|
623 | case S_BOOLEAN:
|
---|
624 | case S_TRISTATE:
|
---|
625 | val = sym_get_tristate_value(sym);
|
---|
626 | switch (val) {
|
---|
627 | case no:
|
---|
628 | return "n";
|
---|
629 | case mod:
|
---|
630 | return "m";
|
---|
631 | case yes:
|
---|
632 | return "y";
|
---|
633 | }
|
---|
634 | break;
|
---|
635 | default:
|
---|
636 | ;
|
---|
637 | }
|
---|
638 | return (const char *)sym->curr.val;
|
---|
639 | }
|
---|
640 |
|
---|
641 | bool sym_is_changable(struct symbol *sym)
|
---|
642 | {
|
---|
643 | return sym->visible > sym->rev_dep.tri;
|
---|
644 | }
|
---|
645 |
|
---|
646 | struct symbol *sym_lookup(const char *name, int isconst)
|
---|
647 | {
|
---|
648 | struct symbol *symbol;
|
---|
649 | const char *ptr;
|
---|
650 | char *new_name;
|
---|
651 | int hash = 0;
|
---|
652 |
|
---|
653 | if (name) {
|
---|
654 | if (name[0] && !name[1]) {
|
---|
655 | switch (name[0]) {
|
---|
656 | case 'y': return &symbol_yes;
|
---|
657 | case 'm': return &symbol_mod;
|
---|
658 | case 'n': return &symbol_no;
|
---|
659 | }
|
---|
660 | }
|
---|
661 | for (ptr = name; *ptr; ptr++)
|
---|
662 | hash += *ptr;
|
---|
663 | hash &= 0xff;
|
---|
664 |
|
---|
665 | for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
|
---|
666 | if (!strcmp(symbol->name, name)) {
|
---|
667 | if ((isconst && symbol->flags & SYMBOL_CONST) ||
|
---|
668 | (!isconst && !(symbol->flags & SYMBOL_CONST)))
|
---|
669 | return symbol;
|
---|
670 | }
|
---|
671 | }
|
---|
672 | new_name = strdup(name);
|
---|
673 | } else {
|
---|
674 | new_name = NULL;
|
---|
675 | hash = 256;
|
---|
676 | }
|
---|
677 |
|
---|
678 | symbol = malloc(sizeof(*symbol));
|
---|
679 | memset(symbol, 0, sizeof(*symbol));
|
---|
680 | symbol->name = new_name;
|
---|
681 | symbol->type = S_UNKNOWN;
|
---|
682 | symbol->flags = SYMBOL_NEW;
|
---|
683 | if (isconst)
|
---|
684 | symbol->flags |= SYMBOL_CONST;
|
---|
685 |
|
---|
686 | symbol->next = symbol_hash[hash];
|
---|
687 | symbol_hash[hash] = symbol;
|
---|
688 |
|
---|
689 | return symbol;
|
---|
690 | }
|
---|
691 |
|
---|
692 | struct symbol *sym_find(const char *name)
|
---|
693 | {
|
---|
694 | struct symbol *symbol = NULL;
|
---|
695 | const char *ptr;
|
---|
696 | int hash = 0;
|
---|
697 |
|
---|
698 | if (!name)
|
---|
699 | return NULL;
|
---|
700 |
|
---|
701 | if (name[0] && !name[1]) {
|
---|
702 | switch (name[0]) {
|
---|
703 | case 'y': return &symbol_yes;
|
---|
704 | case 'm': return &symbol_mod;
|
---|
705 | case 'n': return &symbol_no;
|
---|
706 | }
|
---|
707 | }
|
---|
708 | for (ptr = name; *ptr; ptr++)
|
---|
709 | hash += *ptr;
|
---|
710 | hash &= 0xff;
|
---|
711 |
|
---|
712 | for (symbol = symbol_hash[hash]; symbol; symbol = symbol->next) {
|
---|
713 | if (!strcmp(symbol->name, name) &&
|
---|
714 | !(symbol->flags & SYMBOL_CONST))
|
---|
715 | break;
|
---|
716 | }
|
---|
717 |
|
---|
718 | return symbol;
|
---|
719 | }
|
---|
720 |
|
---|
721 | struct symbol **sym_re_search(const char *pattern)
|
---|
722 | {
|
---|
723 | struct symbol *sym, **sym_arr = NULL;
|
---|
724 | int i, cnt, size;
|
---|
725 | regex_t re;
|
---|
726 |
|
---|
727 | cnt = size = 0;
|
---|
728 | /* Skip if empty */
|
---|
729 | if (strlen(pattern) == 0)
|
---|
730 | return NULL;
|
---|
731 | if (regcomp(&re, pattern, REG_EXTENDED|REG_NOSUB|REG_ICASE))
|
---|
732 | return NULL;
|
---|
733 |
|
---|
734 | for_all_symbols(i, sym) {
|
---|
735 | if (sym->flags & SYMBOL_CONST || !sym->name)
|
---|
736 | continue;
|
---|
737 | if (regexec(&re, sym->name, 0, NULL, 0))
|
---|
738 | continue;
|
---|
739 | if (cnt + 1 >= size) {
|
---|
740 | void *tmp = sym_arr;
|
---|
741 | size += 16;
|
---|
742 | sym_arr = realloc(sym_arr, size * sizeof(struct symbol *));
|
---|
743 | if (!sym_arr) {
|
---|
744 | free(tmp);
|
---|
745 | return NULL;
|
---|
746 | }
|
---|
747 | }
|
---|
748 | sym_arr[cnt++] = sym;
|
---|
749 | }
|
---|
750 | if (sym_arr)
|
---|
751 | sym_arr[cnt] = NULL;
|
---|
752 | regfree(&re);
|
---|
753 |
|
---|
754 | return sym_arr;
|
---|
755 | }
|
---|
756 |
|
---|
757 |
|
---|
758 | struct symbol *sym_check_deps(struct symbol *sym);
|
---|
759 |
|
---|
760 | static struct symbol *sym_check_expr_deps(struct expr *e)
|
---|
761 | {
|
---|
762 | struct symbol *sym;
|
---|
763 |
|
---|
764 | if (!e)
|
---|
765 | return NULL;
|
---|
766 | switch (e->type) {
|
---|
767 | case E_OR:
|
---|
768 | case E_AND:
|
---|
769 | sym = sym_check_expr_deps(e->left.expr);
|
---|
770 | if (sym)
|
---|
771 | return sym;
|
---|
772 | return sym_check_expr_deps(e->right.expr);
|
---|
773 | case E_NOT:
|
---|
774 | return sym_check_expr_deps(e->left.expr);
|
---|
775 | case E_EQUAL:
|
---|
776 | case E_UNEQUAL:
|
---|
777 | sym = sym_check_deps(e->left.sym);
|
---|
778 | if (sym)
|
---|
779 | return sym;
|
---|
780 | return sym_check_deps(e->right.sym);
|
---|
781 | case E_SYMBOL:
|
---|
782 | return sym_check_deps(e->left.sym);
|
---|
783 | default:
|
---|
784 | break;
|
---|
785 | }
|
---|
786 | printf("Oops! How to check %d?\n", e->type);
|
---|
787 | return NULL;
|
---|
788 | }
|
---|
789 |
|
---|
790 | struct symbol *sym_check_deps(struct symbol *sym)
|
---|
791 | {
|
---|
792 | struct symbol *sym2;
|
---|
793 | struct property *prop;
|
---|
794 |
|
---|
795 | if (sym->flags & SYMBOL_CHECK) {
|
---|
796 | printf("Warning! Found recursive dependency: %s", sym->name);
|
---|
797 | return sym;
|
---|
798 | }
|
---|
799 | if (sym->flags & SYMBOL_CHECKED)
|
---|
800 | return NULL;
|
---|
801 |
|
---|
802 | sym->flags |= (SYMBOL_CHECK | SYMBOL_CHECKED);
|
---|
803 | sym2 = sym_check_expr_deps(sym->rev_dep.expr);
|
---|
804 | if (sym2)
|
---|
805 | goto out;
|
---|
806 |
|
---|
807 | for (prop = sym->prop; prop; prop = prop->next) {
|
---|
808 | if (prop->type == P_CHOICE || prop->type == P_SELECT)
|
---|
809 | continue;
|
---|
810 | sym2 = sym_check_expr_deps(prop->visible.expr);
|
---|
811 | if (sym2)
|
---|
812 | goto out;
|
---|
813 | if (prop->type != P_DEFAULT || sym_is_choice(sym))
|
---|
814 | continue;
|
---|
815 | sym2 = sym_check_expr_deps(prop->expr);
|
---|
816 | if (sym2)
|
---|
817 | goto out;
|
---|
818 | }
|
---|
819 | out:
|
---|
820 | if (sym2) {
|
---|
821 | printf(" %s", sym->name);
|
---|
822 | if (sym2 == sym) {
|
---|
823 | printf("\n");
|
---|
824 | sym2 = NULL;
|
---|
825 | }
|
---|
826 | }
|
---|
827 | sym->flags &= ~SYMBOL_CHECK;
|
---|
828 | return sym2;
|
---|
829 | }
|
---|
830 |
|
---|
831 | struct property *prop_alloc(enum prop_type type, struct symbol *sym)
|
---|
832 | {
|
---|
833 | struct property *prop;
|
---|
834 | struct property **propp;
|
---|
835 |
|
---|
836 | prop = malloc(sizeof(*prop));
|
---|
837 | memset(prop, 0, sizeof(*prop));
|
---|
838 | prop->type = type;
|
---|
839 | prop->sym = sym;
|
---|
840 | prop->file = current_file;
|
---|
841 | prop->lineno = zconf_lineno();
|
---|
842 |
|
---|
843 | /* append property to the prop list of symbol */
|
---|
844 | if (sym) {
|
---|
845 | for (propp = &sym->prop; *propp; propp = &(*propp)->next)
|
---|
846 | ;
|
---|
847 | *propp = prop;
|
---|
848 | }
|
---|
849 |
|
---|
850 | return prop;
|
---|
851 | }
|
---|
852 |
|
---|
853 | struct symbol *prop_get_symbol(struct property *prop)
|
---|
854 | {
|
---|
855 | if (prop->expr && (prop->expr->type == E_SYMBOL ||
|
---|
856 | prop->expr->type == E_CHOICE))
|
---|
857 | return prop->expr->left.sym;
|
---|
858 | return NULL;
|
---|
859 | }
|
---|
860 |
|
---|
861 | const char *prop_get_type_name(enum prop_type type)
|
---|
862 | {
|
---|
863 | switch (type) {
|
---|
864 | case P_PROMPT:
|
---|
865 | return "prompt";
|
---|
866 | case P_COMMENT:
|
---|
867 | return "comment";
|
---|
868 | case P_MENU:
|
---|
869 | return "menu";
|
---|
870 | case P_DEFAULT:
|
---|
871 | return "default";
|
---|
872 | case P_CHOICE:
|
---|
873 | return "choice";
|
---|
874 | case P_SELECT:
|
---|
875 | return "select";
|
---|
876 | case P_RANGE:
|
---|
877 | return "range";
|
---|
878 | case P_UNKNOWN:
|
---|
879 | break;
|
---|
880 | }
|
---|
881 | return "unknown";
|
---|
882 | }
|
---|