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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
#/
/# The various types of tokens #/
; enum TOKEN_TYPE [uint] {
LINESEP = 0,
INLNSEP = 1,
DELIMIT = 2,
AUGMENT = 3,
LITERAL = 4,
KEYTYPE = 5,
PREWORD = 6,
KEYWORD = 7,
DEFWORD = 8
}
/# Token struct definition #/
;raw struct Token {
uint
token_type,
line,
col,
~{}charp
data
}
/; method Token
/; operator delete
;delete this.data
;/
/; add_char (`{}charp part)
;uint l = len `this.data
;realloc this.data, l + len part
/;loop (uint i = 0; i < len part) [i++]
`this.data{l + i} = part{i}
;/
;/
;/
/#
Reserved words and characters, as well as
helper funcs for checking their token types.
#/
;const {}{}charp PREWORDS = {
"include",
"define",
"extern",
"size",
"align",
"address",
"rootfile",
"if",
"else",
"abi"
}
;const {}{}charp KEYTYPES = {
"bool",
"char",
"charp",
"int8",
"int16",
"int32",
"int64",
"int",
"uint8",
"uint16",
"uint32",
"uint64",
"uint",
"float32",
"float64",
"float",
"void",
"type"
}
;const {}{}charp KEYWORDS = {
"struct",
"interface",
"enum",
"is",
"extends",
"loop",
"continue",
"break",
"match",
"case",
"default",
"label",
"goto",
"if",
"else",
"const",
"static",
"volatile",
"method",
"override",
"self",
"super",
"operator",
"raw",
"asm",
"inline",
"delete",
"module",
"export",
}
;const {}{}charp LITERALS = {
"true",
"false"
}
;const {}charp DELIMITS = "()[]{}"
;const {}charp LINESEPS = ";:#"
;const {}charp INLNSEPS = ","
;const {}charp AUGMENTS = "~`.&|^><!+-*/%"
;const {}{}charp MDELIMITS = {
# Code block
"/;",
";/",
# Comment block
"/#",
"#/",
# Preproc block
"/:",
":/",
# Redef blocks
";;",
"::",
";#",
":#",
"#;",
"#:"
}
;const {}{}charp MAUGMENTS = {
# Boolean
"==",
"&&",
"||",
# Bitwise shifts
"<<",
">>",
# PREaugmented augmentors
"&=",
"|=",
"^=",
"+=",
"-=",
"*=",
"/=",
"%=",
"~=",
"`=",
# POSTaugmented augmentors
"!&",
"!|",
"!^",
"!==",
"!&&",
"!||",
"!>",
"!<",
">==",
"<==",
# Increment and De-increment
"++",
"--"
}
; const uint MAX_MRESERVED = 3
/##
Checks if the character point p is in the string cmp
#; is_in_string (`const {}charp cmp, charp p) [bool]
/; loop (int i = 0; i < len cmp) [i++]
/; if (s == cmp{i})
;return true
;/
;/
;return false
;/
/##
Checks if the string s is in the list cmp
#; is_in_string_list (`const {}{}charp cmp, `{}charp s) [bool]
/; loop (int i = 0; i < len cmp) [i++]
/; if (len s == len cmp{i})
/; loop (int j = 0; j < len s) [j++]
/; if (s{j} !== cmp{i}{j})
;goto cont_outer
;/
;/
;return true
;/
;label cont_outer
;/
;return false
;/
/#
Get the token_type value for a given string of character points
#; get_token_type (`{}charp s) [int]
/; if (len s > 1)
/; if (is_in_string_list(~PREWORDS, ~s))
;return TOKEN_TYPE.PREWORD
;; else if (is_in_string_list(~KEYTYPES, ~s))
;return TOKEN_TYPE.KEYTYPE
;; else if (is_in_string_list(~KEYWORDS, ~s))
;return TOKEN_TYPE.KEYWORD
;; else if (is_in_string_list(~LITERALS, ~s))
;return TOKEN_TYPE.LITERAL
;; else if (is_in_string_list(~MDELIMITS, ~s))
;return TOKEN_TYPE.DELIMIT
;; else if (is_in_string_list(~MAUGMENTS, ~s))
;return TOKEN_TYPE.AUGMENT
;/
;return TOKEN_TYPE.DEFWORD
;;else if (len s == 1)
/; if (is_in_string(~DELIMITS, s{0}))
;return TOKEN_TYPE.DELIMIT
;; else if (is_in_string(~LINESEPS, s{0}))
;return TOKEN_TYPE.LINESEP
;; else if (is_in_string(~INLNSEPS, s{0}))
;return TOKEN_TYPE.INLNSEP
;; else if (is_in_string(~AUGMENTS, s{0}))
;return TOKEN_TYPE.AUGMENT
;/
;return TOKEN_TYPE.DEFWORD
;/
# What, we just produce vacant tokens now?
# Something has gone wrong.
;return -1
;/
|
