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;
104 struct grub2_parser {
106 struct grub2_script *script;
110 /* type for builtin functions */
111 typedef int (*grub2_function)(struct grub2_script *script, void *data,
112 int argc, char *argv[]);
114 struct grub2_statements *create_statements(struct grub2_parser *parser);
116 struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
117 struct grub2_argv *argv);
119 struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
120 struct grub2_argv *argv, struct grub2_statements *stmts);
122 struct grub2_statement *create_statement_conditional(
123 struct grub2_parser *parser, struct grub2_statement *condition,
124 struct grub2_statements *statements);
126 struct grub2_statement *create_statement_if(struct grub2_parser *parser,
127 struct grub2_statement *conditional,
128 struct grub2_statements *elifs,
129 struct grub2_statements *else_case);
131 struct grub2_statement *create_statement_block(struct grub2_parser *parser,
132 struct grub2_statements *stmts);
134 struct grub2_statement *create_statement_function(struct grub2_parser *parser,
135 struct grub2_word *name, struct grub2_statements *body);
137 struct grub2_statement *create_statement_for(struct grub2_parser *parser,
138 struct grub2_word *var, struct grub2_argv *list,
139 struct grub2_statements *body);
141 struct grub2_word *create_word_text(struct grub2_parser *parser,
144 struct grub2_word *create_word_var(struct grub2_parser *parser,
145 const char *name, bool split);
147 struct grub2_argv *create_argv(struct grub2_parser *parser);
149 void statement_append(struct grub2_statements *stmts,
150 struct grub2_statement *stmt);
152 void argv_append(struct grub2_argv *argv, struct grub2_word *word);
154 void word_append(struct grub2_word *w1, struct grub2_word *w2);
156 /* script interface */
157 void script_execute(struct grub2_script *script);
159 int statement_simple_execute(struct grub2_script *script,
160 struct grub2_statement *statement);
161 int statement_block_execute(struct grub2_script *script,
162 struct grub2_statement *statement);
163 int statement_if_execute(struct grub2_script *script,
164 struct grub2_statement *statement);
165 int statement_menuentry_execute(struct grub2_script *script,
166 struct grub2_statement *statement);
167 int statement_function_execute(struct grub2_script *script,
168 struct grub2_statement *statement);
169 int statement_for_execute(struct grub2_script *script,
170 struct grub2_statement *statement);
172 struct grub2_script *create_script(struct grub2_parser *parser,
173 struct discover_context *ctx);
175 const char *script_env_get(struct grub2_script *script, const char *name);
177 void script_env_set(struct grub2_script *script,
178 const char *name, const char *value);
180 void script_register_function(struct grub2_script *script,
181 const char *name, grub2_function fn, void *data);
183 void register_builtins(struct grub2_script *script);
186 struct resource *create_grub2_resource(struct discover_boot_option *opt,
187 struct discover_device *orig_device,
188 const char *root, const char *path);
190 bool resolve_grub2_resource(struct device_handler *handler,
191 struct resource *res);
193 /* external parser api */
194 struct grub2_parser *grub2_parser_create(struct discover_context *ctx);
195 void grub2_parser_parse(struct grub2_parser *parser, const char *filename,