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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
#/
/#
Reserved words and characters, as well as
helper funcs for checking their token types.
#/
;{}{}charp PREWORDS = {
"include",
"define",
"extern",
"size",
"align",
"address",
"rootfile",
"if",
"else",
"abi"
}
;{}{}charp KEYTYPES = {
"int8",
"int16",
"int32",
"int64",
"int",
"uint8",
"uint16",
"uint32",
"uint64",
"uint",
"float32",
"float64",
"float",
"bool",
"void",
"type"
}
;{}{}charp KEYWORDS = {
"struct",
"interface",
"enum",
"extends",
"loop",
"continue",
"break",
"match",
"case",
"default",
"label",
"goto",
"if",
"else",
"const",
"static",
"volatile",
"method",
"override",
"operator",
"raw",
"asm",
"inline",
"virtual",
"delete",
"alloc",
"salloc",
"realloc",
"module",
"export"
}
;{}{}charp LITERALS = {
"true",
"false",
"null",
"self",
"super"
}
;{}charp RESERVED = "`~!#%^&*()-=+[]{}|;:,.<>/"
;{}charp DELIMITS = "()[]{}"
;{}charp LINESEPS = ";:#"
;{}charp INLNSEPS = ","
;{}charp AUGMENTS = "~`.&|^><!+-*/%"
;{}{}charp MDELIMITS = {
# Code block
"/;",
";/",
# Comment block
"/#",
"#/",
# Preproc block
"/:",
":/",
# Redef blocks
";;",
"::",
";#",
":#",
"#;",
"#:"
}
;{}{}charp MAUGMENTS = {
# Boolean
"==",
"&&",
"||",
# Bitwise shifts
"<<",
">>",
# PREaugmented augmentors
"&=",
"|=",
"^=",
"+=",
"-=",
"*=",
"/=",
"%=",
"~=",
"`=",
# POSTaugmented augmentors
"!&",
"!|",
"!^",
"!==",
"!&&",
"!||",
"!>",
"!<",
">==",
"<==",
# Increment and De-increment
"++",
"--",
"is",
"len",
"size"
}
;int MAX_MRESERVED = 3
/##
Checks if the character point p is in the string cmp
#; is_in_string (~{}charp cmp, charp p) [bool]
/; loop (int i = 0; i < len cmp`) [i++]
/; if (p == cmp`{i})
;return true
;/
;/
;return false
;/
/##
Checks if the string s is in the list cmp
#; is_in_string_list (~{}{}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})
;break 1
;/
;/
;return true
;/
;/
;return false
;/
/; is_numeric_literal(~{}charp dat) [bool]
/; if (len dat` == 0)
;return false
;/
;bool dec = true, flt = false
;int i = 0
/; if (len dat` > 1)
/; if (dat`{0} == '0' && !is_digit(dat`{1}) && dat`{1} !== '.')
;dec = false
;i = 2
;/
;/
/; loop (i < len dat`) [i++]
/; if (!is_digit(dat`{i}) && dec)
/; if (dat`{i} == '.')
/; if (flt || !dec)
;return false
;/
;flt = true
;; else if (dec)
;return false
;/
;/
;/
;return true
;/
/; is_text_literal(~{}charp dat) [bool]
/; if (len dat` < 1)
;return false
;/
;return dat`{0} == '"' || dat`{0} == '\''
;/
/; string_closed ({}charp dat, charp c) [bool]
/; if (len dat < 2)
;return false
;/
;charp closing = dat{0}
;bool escaping = false
/; loop (int i = 1; i < len dat) [i++]
/; if (dat{i} == closing && !escaping)
;return true
;; else if (dat{i} == '\\' && !escaping)
;escaping = true
;; else
;escaping = false
;/
;/
;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_numeric_literal(s) || s`{0} == '"' || s`{0} == '\'')
;return TOKEN_TYPE.LITERAL
;/
/; 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_digit(s`{0}))
;return TOKEN_TYPE.LITERAL
;/
/; 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
;/
|
