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;
87 struct grub2_statements *statements;
88 struct list environment;
90 struct discover_context *ctx;
91 struct discover_boot_option *opt;
92 unsigned int n_options;
97 struct grub2_script *script;
100 /* type for builtin functions */
101 typedef int (*grub2_function)(struct grub2_script *script, void *data,
102 int argc, char *argv[]);
104 struct grub2_statements *create_statements(struct grub2_parser *parser);
106 struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
107 struct grub2_argv *argv);
109 struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
110 struct grub2_argv *argv, struct grub2_statements *stmts);
112 struct grub2_statement *create_statement_conditional(
113 struct grub2_parser *parser, struct grub2_statement *condition,
114 struct grub2_statements *statements);
116 struct grub2_statement *create_statement_if(struct grub2_parser *parser,
117 struct grub2_statement *conditional,
118 struct grub2_statements *elifs,
119 struct grub2_statements *else_case);
121 struct grub2_statement *create_statement_block(struct grub2_parser *parser,
122 struct grub2_statements *stmts);
124 struct grub2_statement *create_statement_function(struct grub2_parser *parser,
125 struct grub2_word *name, struct grub2_statements *body);
127 struct grub2_word *create_word_text(struct grub2_parser *parser,
130 struct grub2_word *create_word_var(struct grub2_parser *parser,
131 const char *name, bool split);
133 struct grub2_argv *create_argv(struct grub2_parser *parser);
135 void statement_append(struct grub2_statements *stmts,
136 struct grub2_statement *stmt);
138 void argv_append(struct grub2_argv *argv, struct grub2_word *word);
140 void word_append(struct grub2_word *w1, struct grub2_word *w2);
142 /* script interface */
143 void script_execute(struct grub2_script *script);
145 int statement_simple_execute(struct grub2_script *script,
146 struct grub2_statement *statement);
147 int statement_block_execute(struct grub2_script *script,
148 struct grub2_statement *statement);
149 int statement_if_execute(struct grub2_script *script,
150 struct grub2_statement *statement);
151 int statement_menuentry_execute(struct grub2_script *script,
152 struct grub2_statement *statement);
153 int statement_function_execute(struct grub2_script *script,
154 struct grub2_statement *statement);
156 struct grub2_script *create_script(struct grub2_parser *parser,
157 struct discover_context *ctx);
159 const char *script_env_get(struct grub2_script *script, const char *name);
161 void script_env_set(struct grub2_script *script,
162 const char *name, const char *value);
164 void script_register_function(struct grub2_script *script,
165 const char *name, grub2_function fn, void *data);
167 void register_builtins(struct grub2_script *script);
170 struct resource *create_grub2_resource(void *ctx,
171 struct discover_device *orig_device,
172 const char *root, const char *path);
174 bool resolve_grub2_resource(struct device_handler *handler,
175 struct resource *res);
177 /* external parser api */
178 struct grub2_parser *grub2_parser_create(struct discover_context *ctx);
179 void grub2_parser_parse(struct grub2_parser *parser, char *buf, int len);