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/##
Copyright 2021 Kyle Gunger
This file is licensed under the CDDL 1.0 (the License)
and may only be used in accordance with the License.
You should have received a copy of the License with this
software/source code. If you did not, a copy can be found
at the following URL:
https://opensource.org/licenses/CDDL-1.0
THIS SOFTWARE/SOURCE CODE IS PROVIDED "AS IS" WITH NO
WARRANTY, GUARANTEE, OR CLAIM OF FITNESS FOR ANY PURPOSE
EXPRESS OR IMPLIED
#/
/; is_keyword_statement ({}charp word) [bool]
;return string_equate(word, "struct") || string_equate(word, "interface") || string_equate(word, "enum") ||
string_equate(word, "continue") || string_equate(word, "break") || string_equate(word, "label") ||
string_equate(word, "goto") || string_equate(word, "virtual") || string_equate(word, "asm") ||
string_equate(word, "delete")
;/
/; is_closing (Token t) [bool]
/; if (t.token_type == TOKEN_TYPE.DELIMIT)
;return string_equate(t.data`, ")") || string_equate(t.data`, "]") || string_equate(t.data`, "}")
;/
;return false
;/
/; get_closing (~{}Token tokens, int i) [int]
;{}charp end = ")"
/; if (string_equate(tokens`{i}.data`, "["))
;end = "]"
;; else if (string_equate(tokens`{i}.data`, "{"))
;end = "}"
;/
;int delims = 0
/; loop (i++; i < len tokens`) [i++]
/; if (is_closing(tokens`{i}))
/; if (delims > 0)
;delims--
;; else if (string_equate(end, tokens`{i}.data`))
;return i
;; else
;return -1
;/
;; else if (tokens`{i}.token_type == TOKEN_TYPE.DELIMIT)
;delims++
;/
;/
;return -1
;/
/; is_definition (~{}Token tokens, ~int i) [bool]
/; loop (int j = i`; j < len tokens`) [j++]
/; if (tokens`{j}.token_type == TOKEN_TYPE.KEYTYPE)
;; else if ()
;/
;/
;return false
;/
/; tree_keyword_statement (~{}Token tokens, ~int i) [Node]
;Token def_tok = {TOKEN_TYPE.KEYWORD, 0, 0, ~CNULL}
;{}Node def_sub = {}
;return {def_tok, ~def_sub}
;/
/; tree_statement (~{}Token tokens, ~int i) [Node]
;i`++
/; if (i` !< len tokens`)
;return make_null_node()
;; else if (is_keyword_statement(tokens`{i`}.data`))
;return tree_keyword_statement(tokens, i)
;; else if (is_definition(tokens, i))
;return tree_definition(tokens, i)
;/
;return tree_value(tokens, i)
;/
/; tree_preproc [Node]
;/
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