diff options
| author |  ridiculousfish <corydoras@ridiculousfish.com> | 2013-06-30 15:38:31 -0700 |
|---|---|---|
| committer | ridiculousfish <corydoras@ridiculousfish.com> | 2013-06-30 15:38:31 -0700 |
| commit | 70b83a3bbbb7b4b7809d7164fc4ed62342355eb3 (patch) | |
| tree | 560fef5c551d090f6175ba7108bd12036d1d6fb4 /parse_tree.h | |
| parent | eba5b0e4c5c079aaf9b5e1cf69d096ca9965342a (diff) | |
Implement support for switch
Diffstat (limited to 'parse_tree.h')
| -rw-r--r-- | parse_tree.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/parse_tree.h b/parse_tree.h index 4530a632..525480f3 100644 --- a/parse_tree.h +++ b/parse_tree.h @@ -68,11 +68,18 @@ enum parse_token_type_t symbol_else_clause, symbol_else_continuation, + symbol_switch_statement, + symbol_case_item_list, + symbol_case_item, + symbol_boolean_statement, symbol_decorated_statement, symbol_plain_statement, symbol_arguments_or_redirections_list, symbol_argument_or_redirection, + + symbol_argument_list_nonempty, + symbol_argument_list, // Terminal types parse_token_type_string, @@ -96,6 +103,7 @@ enum parse_keyword_t parse_keyword_begin, parse_keyword_function, parse_keyword_switch, + parse_keyword_case, parse_keyword_end, parse_keyword_and, parse_keyword_or, @@ -164,7 +172,7 @@ class parse_node_tree_t : public std::vector<parse_node_t> # A statement is a normal command, or an if / while / and etc - statement = boolean_statement | block_statement | if_statement | decorated_statement + statement = boolean_statement | block_statement | if_statement | switch_statement | decorated_statement # A block is a conditional, loop, or begin/end @@ -174,16 +182,21 @@ class parse_node_tree_t : public std::vector<parse_node_t> <ELSE> else_continuation else_continuation = if_clause else_clause | STATEMENT_TERMINATOR job_list + + switch_statement = SWITCH <TOK_STRING> STATEMENT_TERMINATOR case_item_list <END> + case_item_list = <empty> | + case_item case_item_list + case_item = CASE argument_list STATEMENT_TERMINATOR job_list + + argument_list_nonempty = <TOK_STRING> argument_list + argument_list = <empty> | argument_list_nonempty block_statement = block_header STATEMENT_TERMINATOR job_list <END> arguments_or_redirections_list block_header = for_header | while_header | function_header | begin_header for_header = FOR var_name IN arguments_or_redirections_list while_header = WHILE statement begin_header = BEGIN - function_header = FUNCTION function_name arguments_or_redirections_list - - -#(TODO: functions should not support taking redirections in their arguments) + function_header = FUNCTION function_name argument_list # A boolean statement is AND or OR or NOT |