4 #include <discover/device-handler.h>
21 struct grub2_word *next;
22 struct grub2_word *last;
23 struct list_item argv_list;
29 /* postprocessing (with process_expansions) populates these to hand to
30 * the grub2_command callbacks */
35 struct grub2_statements {
39 struct grub2_statement {
40 struct list_item list;
46 STMT_TYPE_CONDITIONAL,
48 int (*exec)(struct grub2_script *,
49 struct grub2_statement *);
52 struct grub2_statement_simple {
53 struct grub2_statement st;
54 struct grub2_argv *argv;
57 struct grub2_statement_menuentry {
58 struct grub2_statement st;
59 struct grub2_argv *argv;
60 struct grub2_statements *statements;
63 struct grub2_statement_conditional {
64 struct grub2_statement st;
65 struct grub2_statement *condition;
66 struct grub2_statements *statements;
69 struct grub2_statement_if {
70 struct grub2_statement st;
71 struct grub2_statements *conditionals;
72 struct grub2_statements *else_case;
75 struct grub2_statement_block {
76 struct grub2_statement st;
77 struct grub2_statements *statements;
80 struct grub2_statement_function {
81 struct grub2_statement st;
82 struct grub2_word *name;
83 struct grub2_statements *body;
86 struct grub2_statement_for {
87 struct grub2_statement st;
88 struct grub2_word *var;
89 struct grub2_argv *list;
90 struct grub2_statements *body;
94 struct grub2_statements *statements;
95 struct list environment;
97 struct discover_context *ctx;
98 struct discover_boot_option *opt;
100 unsigned int n_options;
103 struct grub2_parser {
105 struct grub2_script *script;
109 /* type for builtin functions */
110 typedef int (*grub2_function)(struct grub2_script *script, void *data,
111 int argc, char *argv[]);
113 struct grub2_statements *create_statements(struct grub2_parser *parser);
115 struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
116 struct grub2_argv *argv);
118 struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
119 struct grub2_argv *argv, struct grub2_statements *stmts);
121 struct grub2_statement *create_statement_conditional(
122 struct grub2_parser *parser, struct grub2_statement *condition,
123 struct grub2_statements *statements);
125 struct grub2_statement *create_statement_if(struct grub2_parser *parser,
126 struct grub2_statement *conditional,
127 struct grub2_statements *elifs,
128 struct grub2_statements *else_case);
130 struct grub2_statement *create_statement_block(struct grub2_parser *parser,
131 struct grub2_statements *stmts);
133 struct grub2_statement *create_statement_function(struct grub2_parser *parser,
134 struct grub2_word *name, struct grub2_statements *body);
136 struct grub2_statement *create_statement_for(struct grub2_parser *parser,
137 struct grub2_word *var, struct grub2_argv *list,
138 struct grub2_statements *body);
140 struct grub2_word *create_word_text(struct grub2_parser *parser,
143 struct grub2_word *create_word_var(struct grub2_parser *parser,
144 const char *name, bool split);
146 struct grub2_argv *create_argv(struct grub2_parser *parser);
148 void statement_append(struct grub2_statements *stmts,
149 struct grub2_statement *stmt);
151 void argv_append(struct grub2_argv *argv, struct grub2_word *word);
153 void word_append(struct grub2_word *w1, struct grub2_word *w2);
155 /* script interface */
156 void script_execute(struct grub2_script *script);
158 int statement_simple_execute(struct grub2_script *script,
159 struct grub2_statement *statement);
160 int statement_block_execute(struct grub2_script *script,
161 struct grub2_statement *statement);
162 int statement_if_execute(struct grub2_script *script,
163 struct grub2_statement *statement);
164 int statement_menuentry_execute(struct grub2_script *script,
165 struct grub2_statement *statement);
166 int statement_function_execute(struct grub2_script *script,
167 struct grub2_statement *statement);
168 int statement_for_execute(struct grub2_script *script,
169 struct grub2_statement *statement);
171 struct grub2_script *create_script(struct grub2_parser *parser,
172 struct discover_context *ctx);
174 const char *script_env_get(struct grub2_script *script, const char *name);
176 void script_env_set(struct grub2_script *script,
177 const char *name, const char *value);
179 void script_register_function(struct grub2_script *script,
180 const char *name, grub2_function fn, void *data);
182 void register_builtins(struct grub2_script *script);
185 struct resource *create_grub2_resource(struct discover_boot_option *opt,
186 struct discover_device *orig_device,
187 const char *root, const char *path);
189 bool resolve_grub2_resource(struct device_handler *handler,
190 struct resource *res);
192 /* external parser api */
193 struct grub2_parser *grub2_parser_create(struct discover_context *ctx);
194 void grub2_parser_parse(struct grub2_parser *parser, const char *filename,