Gentee Language in BNF

You can use ANSI character set from 0 to 255 in a source code. ANSI character set from 32 to 128 are specified in the diagram defined above, other characters are represented in hexadecimal notation, for example 0x09 - a tab character. Some preprocessor commands are not shown in these diagrams.

<binary digit> ::= '0' | '1'

<decimal digit> ::= <binary digit> | '2' | '3' | '4' | '5' | '6' | '7' | '8' | '9'

<hexadecimal digit> ::= <decimal digit> | 'A' | 'B' | 'C' | 'D' | 'E' | 'F' | 'a' | 'b' | 'c' | 'd' | 'e' | 'f'

<byte> ::= <hexadecimal digit><hexadecimal digit>

<decimal number> ::= <decimal digit> {<decimal digit>}

<hexadecimal number> ::= '0' ('x' | 'X') <hexadecimal number> {<hexadecimal number>}

<binary number> ::= '0' ('b' | 'B') <binary number> {<binary number>}

<character code> ::= '''<any character>'''

<floating point number> ::= <decimal number>'.'[<decimal number>]

<real number> ::= ['-'] (<floating point number> | <floating point number> ('e' | 'E') ['+' | '-'] <decimal number>) ['d' | 'D']

<natural number> ::= <decimal number> | <hexadecimal number> | <binary number> | <character code>

<integer number> ::= ['-'] <natural number> ['l' | 'L']

<number> := <integer number> | <floating point number> | <real number>

<letter> ::= 'A' | 'B' | ... | 'Z' | 'a' | 'b' | ... | 'z' | 0x80 | 0x81 | ... | 0xFF

<space> ::= 0x20

<tabulation> ::= 0x09

<end-of-line> := 0x0D 0x0A

<delimiter> ::= '!' | '"' | '#' | '$' | '%' | '&' | ''' | '(' | ')' | '*' | '+' | ',' | '-' | '.' | '/' | '<' | '=' | '>' | '?' | '@' | '[' | '\' | ']' | '^' | '_' | '|' | '}' | '{' | '~' | <tabulation> | <space> | <end-of-line>

<character> ::= <decimal digit> | <letter> | <delimiter>

<name> ::= (<letter> | '_') {<letter> | '_' | <decimal digit>}

<function name> ::= <name>

<variable name> ::= <name>

<type name> ::= <name>

<field name> ::= <name>

<method name> ::= <name>

<attribute name> ::= <name>

<macro name> ::= <name>

<str character> ::= <tabulation> | <space> | '!' | '#' | ... | '[' | ']' | ... | 0xFF

<ext str character> ::= <str character> | '\'

<any character> ::= <ext str character> | '"'

<macrostring element> ::= {<str character>|<end-of-line>| '$'<macro name>}

<const string element> ::= <str character> | <end-of-line> | '\\' | '\"' | '\a' | '\b' | '\f' | '\n' | '\r' | '\t' | '\l' | '\0'<byte> | '\$'<macro name>'$' | '\$"' {<macrostring element>} '"' | '\#' | '\=' ( '\' | '/' | '~' | '^' | '&' | ':') | '\%['[ {<ext str character>} ]']'{<ext str character>}[{<ext str character>}] | '\[' {<any character>}']' | '\<'{<macrostring element>}'>'

<string element> ::= {<ext str character>} | '\('<expression>')'

<const string> ::= '"' { <const string element> | '\!'{<const string element>| '"'}'\!' }'"'

<string> ::= '"' { <string element>| '\!'{<string element>| '"'}'\!' }'"'

<const binary data element> ::= '\h'<space> [ ( '2' | '4' | '8' ) <space>] | '\i'<space> [ ( '2' | '4' | '8' ) <space>] | <hexadecimal digit> {<hexadecimal digit>} { (<space> | ',' | <end-of-line>) <hexadecimal digit> {<hexadecimal digit>} } | <integer number> { (<space> | ',' | <end-of-line>) <integer number> } | '\'<const string> | '\[' {<any character>}']' | '\$'<macro name>'$' | '\$"' {<macrostring element>} '"' | '\<'{<macrostring element>}'>'

<binary data element> ::= <const binary data element> | '\('<expression>')'

<const binary data> ::= ''' {<const binary data element>} '''

<binary data> ::= ''' {<binary data element>} '''

<const collection> ::= '%{' <constant> {','<constant>} '}'

<collection> ::= '%{' <expression> {','<expression>} '}'

<constant> ::= <number> | <const string> | <const binary data> | <const collection>

<array> ::= [ '[' {','} ']' ] [of <type name>]

<pointer> ::= <expression> '->' <type name> [<array>]

<parameters> ::= <expression> {','<expression>}

<array element> ::= <object>'['<parameters>']'

<field> ::= [<object>]'.'<field name>

<late binding> ::=<object>'~' (<field name> | <method name>'(' [<parameters>] ')')

<function call> ::= (<function name> | <expression>'->'func ) '(' [<parameters>] ')'

<method call> ::= [<object>]'.'<method name>'(' [<parameters>] ')'

<lvalue> ::= <object> | <variable name> | <pointer> | <array element> | <field>

<as operation> ::= <variable name>'as' ((<type name>[<array>]) | <object>)

<increment operator> ::= '++' | '--'

<assignment operator> ::= '=' | '%=' | '&=' | '*=' | '+=' | '-=' | '/=' | '<<=' | '>>=' | '^=' | '|='

<unary operator> ::= '+' | '-' | '*' | '!' | '~' | '@'

<binary operator> ::= '==' | '!=' | '>' | '<' | '<=' | '>=' | '&&' | '||' | '&' | '%' | '*' | '/' | '+' | '-' | '<<' | '>>' | '^' | '%==' | '%!=' | '%>' | '%<' | '%<=' | '%>=' | '@'

<operator> ::= <increment operator> | <assignment operator> | <unary operator> | <binary operator>

<assignment expression> ::= <lvalue><assignment operator><expression>

<lvalue expression> ::= '&'<lvalue> | '&'<function name> | <increment operator><lvalue> | <lvalue><increment operator>

<question> ::= '?''(' <expression>',' [<expression>] ',' [<expression>] ')'

<variable declaration> ::= <variable name> ['['<expression> { [','] <expression>} ']'] [of <type name>]

<variable list> ::= <variable declaration> ['='<expression>','<variable list>] | <variable declaration> [[',']<variable list>]

<variables declaration> ::= <type name><variable list><end-of-line>

<if> ::= if <expression><block> {elif <expression> <block>} [else <block>]

<while> ::= while <expression><block>

<dowhile> ::= do <block> while <expression>

<for> ::= for [<expression>] ','<expression>',' [<expression>] <block>

<fornum> ::= fornum <variable name> ['='<expression>] ','<expression><block>

<foreach> ::= foreach [<type name>] <variable name> [<array>]','<expression><block>

<return> ::= return [<expression>]

<label> ::= label <name>

<goto> ::= goto <name>

<switch> ::= switch <expression>'{' {case <expression> {','<expression>} {<label>} <block>} [default {<label>} <block>] '}'

<block contents> ::= <block command> {<end-of-line><block command>}

<block> ::= '{'<block contents>'}'

<block command> ::= {<label>} (<block> | <expression> | <variables declaration> | <if> | <for> | <fornum> | <while> | <dowhile> | <foreach> | <switch> | break | continue | <return>)

<parameter declaration> ::= <variable name> [<array>]

<parameters declaration> ::= <type name><parameter declaration> { [','] <parameter declaration>} [<parameters declaration>]

<attributes> ::= '<'<attribute name> { [','] <attribute name>} '>'

<subfunction> ::= subfunc [<type name>] <function name> ['(' [<parameters declaration>] ')'] <block>

<function body> ::= '{' (<block command> | <subfunction>) <block command> {<end-of-line> (<block command> | <subfunction>) } '}'

<function declaration> ::= func [<type name>] <function name> [<attributes>] ['(' [<parameters declaration>] ')']

<func> ::= <function declaration><function body>

<method declaration> ::= method [<type name>] <type name>'.'<method name>[<attributes>] ['(' [<parameters declaration>] ')']

<method> ::= <method declaration><function body>

<property declaration> ::= property [<type name>] <type name>'.'<method name> [<attributes>] ['(' [<parameters declaration>] ')']

<property> ::= <property declaration><function body>

<operator declaration> ::= operator <type name> <operator> [<attributes>] '(' <parameters declaration> ')'

<operator function> ::= <operator declaration><function body>

<text-function declaration> ::= text <function name> [<attributes>]['(' [<parameters declaration>] ')']

<text-function body> ::= { <const string element> | '\@'<function name>'(' [<parameters>]> | '\('<expression>')' | '\{'(<block command> | <subfunction>) <block command> {<end-of-line> (<block command> | <subfunction>) }'}' }['\!']

<text> ::= <text-function declaration><end-of-line><text-function body>

<macro declaration> ::= <macro name> ['=' (<constant>|<name>) ]

<define> ::= define [<name>][<attributes>] '{'<macro declaration> {<end-of-line><macro declaration>} '}'

<macro expression> ::= '$'<macro name> | <constant> | '!'<macro expression> | '('<macro expression>')' | <macro expression> ( '&&' | '||' | '==' | '!=' ) <macro expression>

<ifdef> ::= ifdef <macro expression> '{' ... '}' { elif <macro expression> '{' ... '}' } [ else '{' ... '}']

<file name> ::= '"' {<str character>} '"'

<include> ::= include '{'<file name> {<end-of-line><file name>} '}'

<imported function declaration> ::= [ <type name> ] <function name> '(' [ <type name> { ','<type name> } ] ')' [ '->' <function name>]

<import> ::= import <file name> [<attributes>] '{' <imported function declaration> { <end-of-line><imported function declaration> } '}'

<field declaration> ::= <field declaration> [<array declaration>]

<fields declaration> ::= <type name><field declaration> {[','] <field declaration>}<end-of-line>

<type> ::= type [<attributes>] '{'<fields declaration>{<fields declaration>} '}'

<array declaration> ::= ['['<natural number> { [','] <natural number>} ']'] [of <type name>]

<global variable declaration> ::= <variable name> [<array declaration>]['=' <constant> ]

<global variables declaration> ::= <type name><global variable declaration> {[','] <global variable declaration>}<end-of-line>

<global> ::= global '{' {<global variables declaration>} '}'

<public> ::= public

<private> ::= private

<extern> ::= extern '{' {(<function declaration> | <method declaration> | <operator declaration> | <property declaration> )<end-of-line>} '}'

<program> ::= <command> {<end-of-line><command>}

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Gentee Language in BNF