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;
96 struct grub2_script *script;
99 /* type for builtin functions */
100 typedef int (*grub2_function)(struct grub2_script *script, void *data,
101 int argc, char *argv[]);
103 struct grub2_statements *create_statements(struct grub2_parser *parser);
105 struct grub2_statement *create_statement_simple(struct grub2_parser *parser,
106 struct grub2_argv *argv);
108 struct grub2_statement *create_statement_menuentry(struct grub2_parser *parser,
109 struct grub2_argv *argv, struct grub2_statements *stmts);
111 struct grub2_statement *create_statement_conditional(
112 struct grub2_parser *parser, struct grub2_statement *condition,
113 struct grub2_statements *statements);
115 struct grub2_statement *create_statement_if(struct grub2_parser *parser,
116 struct grub2_statement *conditional,
117 struct grub2_statements *elifs,
118 struct grub2_statements *else_case);
120 struct grub2_statement *create_statement_block(struct grub2_parser *parser,
121 struct grub2_statements *stmts);
123 struct grub2_statement *create_statement_function(struct grub2_parser *parser,
124 struct grub2_word *name, struct grub2_statements *body);
126 struct grub2_word *create_word_text(struct grub2_parser *parser,
129 struct grub2_word *create_word_var(struct grub2_parser *parser,
130 const char *name, bool split);
132 struct grub2_argv *create_argv(struct grub2_parser *parser);
134 void statement_append(struct grub2_statements *stmts,
135 struct grub2_statement *stmt);
137 void argv_append(struct grub2_argv *argv, struct grub2_word *word);
139 void word_append(struct grub2_word *w1, struct grub2_word *w2);
141 /* script interface */
142 void script_execute(struct grub2_script *script);
144 int statement_simple_execute(struct grub2_script *script,
145 struct grub2_statement *statement);
146 int statement_block_execute(struct grub2_script *script,
147 struct grub2_statement *statement);
148 int statement_if_execute(struct grub2_script *script,
149 struct grub2_statement *statement);
150 int statement_menuentry_execute(struct grub2_script *script,
151 struct grub2_statement *statement);
152 int statement_function_execute(struct grub2_script *script,
153 struct grub2_statement *statement);
155 struct grub2_script *create_script(struct grub2_parser *parser,
156 struct discover_context *ctx);
158 const char *script_env_get(struct grub2_script *script, const char *name);
160 void script_env_set(struct grub2_script *script,
161 const char *name, const char *value);
163 void script_register_function(struct grub2_script *script,
164 const char *name, grub2_function fn, void *data);
166 void register_builtins(struct grub2_script *script);
169 struct resource *create_grub2_resource(void *ctx,
170 struct discover_device *orig_device,
171 const char *root, const char *path);
173 bool resolve_grub2_resource(struct device_handler *handler,
174 struct resource *res);
176 /* external parser api */
177 struct grub2_parser *grub2_parser_create(struct discover_context *ctx);
178 void grub2_parser_parse(struct grub2_parser *parser, char *buf, int len);