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    【记录】使用Eclipse开发Antlr：创建antlr项目并编译

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    【背景】

    之前花了很多精力，终于下载到Antlr的Eclipse插件并安装成功：

    【记录】折腾Antlr的Eclipse插件

    并且配置好antlr：

    【记录】配置Eclipse中的antlr

    现在就可以用Eclipse去折腾Antlr的开发了。

    1.参考：

    Antlr+Eclipse开发环境的搭建

    去新建一个java项目：

    new a java project

    hart eddl antlr project

    finish for antlr project

    就可以新建好此java的项目了：

    newly created java project for antlr

    2.选中该java项目后，

    再去新建项目：

    harteddl new other

    choose antlr combined grammar

    create a new combined grammar using antlr

    3.然后就可以新建出对应的antlr的语法文件了：

    antlr g file created in eclipse

    然后写入新的内容：

    grammar HartEddl;

/*
Notes:
1. HART EDDL Spec
can find from
hart 7.3 -> SPEC500.pdf, that is Device Description Language Specification
*/
options {
	output = AST;
	ASTLabelType = CommonTree; // type of $stat.tree ref etc...
}

COMMENT
    :   '//' ~('\n'|'\r')* '\r'? '\n' {$channel=HIDDEN;}
    |   '/*' ( options {greedy=false;} : . )* '*/' {$channel=HIDDEN;}
    ;

WS  :   ( ' ' | '\t' | '\r' | '\n')+ {$channel=HIDDEN;};

//fragment
ID  :	('a'..'z'|'A'..'Z'|'_') ('a'..'z'|'A'..'Z'|'0'..'9'|'_')*;

fragment
DIGIT
	:	'0'..'9';

fragment
OCTAL_ESC
    :   '\\' ('0'..'3') ('0'..'7') ('0'..'7')
    |   '\\' ('0'..'7') ('0'..'7')
    |   '\\' ('0'..'7')
    ;

fragment
UNICODE_ESC
    :   '\\' 'u' HEX_DIGIT HEX_DIGIT HEX_DIGIT HEX_DIGIT
    ;

fragment
ESC_SEQ
    :   '\\' ('b'|'t'|'n'|'f'|'r'|'\"'|'\''|'\\')
    |   UNICODE_ESC
    |   OCTAL_ESC
    ;

//fragment
STRING
    :  '"' ( ESC_SEQ | ~('\\'|'"') )* '"'
    ;


fragment
IMPORTED_VALUE	:	'[' ID ']'; /* normal ID with [] */

//fragment
DEFINE_IMPORTED_VALUE
		:	ID | IMPORTED_VALUE;

fragment
HEX_DIGIT 	: ('a'..'f'|'A'..'F' | DIGIT) ;
//fragment
HEX_VALUE	:	'0x' HEX_DIGIT+;

//fragment
DECIMAL_VALUE	: 	DIGIT+;

//fragment
direct_value 	:	(DECIMAL_VALUE | HEX_VALUE);

string_value	:	(DEFINE_IMPORTED_VALUE | STRING);

expression_or_direct_value
		:	direct_value; //todo: add expression support
expression_or_string
		:	STRING;//todo:add string expression support


/*******************************************************************************
Main Entry Rule
*******************************************************************************/
startParse	:	(singleInclude | idInfos | variable | command | collection | menu)+;

/*******************************************************************************
include
*******************************************************************************/
singleInclude	:	'#include' STRING;

/*******************************************************************************
EDDL Identification Info
*******************************************************************************/
idInfos		:	idinfo (',' idinfo)+;
idinfo		:	idInfoKey idInfoValue;
idInfoKey	:	'MANUFACTURER' | 'DEVICE_TYPE' | 'DEVICE_REVISION' | 'DD_REVISION';
idInfoValue	:	direct_value | DEFINE_IMPORTED_VALUE;


/*******************************************************************************
Common definitions
*******************************************************************************/
common_label	:	'LABEL' string_value+ ';';
common_help	:	'HELP' help_value ';';



/*******************************************************************************
7.27 VARIABLE
Table 138 – VARIABLE attributes
*******************************************************************************/
variable	:	'VARIABLE' variable_identifier '{' variable_body '}';
variable_identifier
		:	ID;
variable_body	:	variable_field+;
variable_field	:	variable_class | variable_label | variable_type | variable_help | constant_unit | variable_handling;
variable_class	:	'CLASS' class_value ';' ;
class_value	:	single_class_value ('&' single_class_value)*;
single_class_value
		: 	('ALARM'| 'ANALOG_INPUT'| 'ANALOG_OUTPUT'| 'COMPUTATION'| 'CONTAINED'| 'CORRECTION'| 'DEVICE'| 'DIAGNOSTIC'| 'DIGITAL_INPUT'| 'DIGITAL_OUTPUT'| 'DISCRETE_INPUT'| 'DISCRETE_OUTPUT'| 'DYNAMIC'| 'FREQUENCY_INPUT'| 'FREQUENCY_OUTPUT'| 'HART'| 'INPUT'| 'LOCAL'| 'LOCAL_DISPLAY'| 'OPERATE'| 'OUTPUT'| 'SERVICE'| 'TUNE');
variable_label	:	common_label;
variable_type	:	integer_type_value | float_type_value | enumarated_type_value | bitEmurated_type_value; //todo: add more

values_display_format
		:	'DISPLAY_FORMAT' expression_or_string ';';
values_default_value
		:	'DEFAULT_VALUE' expression_or_direct_value ';';
enumarated_value:	direct_value;
enumarated_desc	:	string_value;
enumarated_help	:	string_value;
enumarated_desc_help
	:	enumarated_desc_help_call | enumarated_desc_help_direct;
enumarated_desc_help_direct
	:	enumarated_desc (',' enumarated_help)?;
enumarated_desc_help_call
	:	ID '(' direct_value ')'; // call some variable
//	:	variable_identifier '(' direct_value ')'; // call some variable
//	:	'units_code(57)'; // call some variable
	
//Note:
//7.27.2.2.3.2 ENUMERATED
//[(description, value, help)<exp>]+,
//should be
//[(value, description, help)<exp>]+,
values_enumarated
		:	'{' enumarated_value ',' enumarated_desc_help '}' ','?; //TODO: add DEFAULT_VALUE,help,INITIAL_VALUE,size
//7.27.2.2.3.2 ENUMERATED
enumarated_type_value
		:	'TYPE' 'ENUMERATED' '{' values_enumarated+ '}';

values_attribute
		:	values_default_value | values_display_format;//todo: add more EDIT_FORMAT, ...
float_type_value
		:	'TYPE' 'FLOAT' '{' values_attribute+ '}';
integer_type_value
		:	'TYPE' 'INTEGER' '{' values_attribute+ '}';

bitEnumarated_action	:	ID ('&' ID)* ('(' ID '&' ID ')')?;
bitEnumarated_value	:	direct_value;
bitEnumarated_desc	:	string_value;
values_bitEnumarated
		:	'{' bitEnumarated_value ',' bitEnumarated_desc (',' bitEnumarated_action)?'}' ','?;
bitEmurated_type_value
		:	'TYPE' 'BIT_ENUMERATED' '{' values_bitEnumarated+ '}';

constant_unit	:	'CONSTANT_UNIT' string_value ';' ;

variable_help	:	common_help;
help_value	:	string_value;

/*
7.27.2.5 HANDLING
*/
single_handling_value
		:	('READ' | 'READ_WRITE' | 'WRITE');
handling_value	:	single_handling_value ('&' single_handling_value)*;
variable_handling
		:	'HANDLING' handling_value ';' ;


/*******************************************************************************
7.7 COMMAND
*******************************************************************************/
command		:	'COMMAND' command_identifier '{' command_body '}';
command_body	:	command_field+;//command_number command_operation command_transaction+ command_responseCode*;
command_field	:	command_number | command_operation | command_transaction | command_responseCode;
command_identifier
		:	ID;
command_number	:	'NUMBER' direct_value ';';	

command_operation
		:	'OPERATION' command_operation_attr  ';';	
command_operation_attr
		:	'READ'|'WRITE'|'COMMAND'|'DATA_EXCHANGE'|string_value;
	
command_transaction
		:'TRANSACTION' command_transaction_number? '{' command_transaction_body '}';
command_transaction_number
		:	direct_value;
command_transaction_body
		:	command_transaction_request command_transaction_reply command_transaction_responseCode*;
//for HART EDDL
//9.1 Transactions
command_transaction_request
		:	'REQUEST' '{' request_reply_dataItem? (',' request_reply_dataItem)* '}'; //TODO: add more for: Table 46 – REPLY and REQUEST attributes
command_transaction_reply
		:	'REPLY' '{' request_reply_dataItem (',' request_reply_dataItem)* '}';
request_reply_dataItem
		:	direct_value | request_reply_dataItem_reference;
request_reply_dataItem_reference
		:	ID; //TODO: add "9.1.1 Data Item Masks", "9.1.2 Data Item Qualifiers", ""

/*
//for Profibus EDDL
command_transaction_request
		:	'REQUEST' '{' request_reply_attibutes '}'; //TODO: add more for: Table 46 – REPLY and REQUEST attributes
command_transaction_reply
		:	'REPLY' '{' request_reply_attibutes '}';
request_reply_attibutes
		:	(requestReply_attibute_reference (',' requestReply_attibute_itemMask (',' requestReply_attibute_info (',' requestReply_attibute_index)?)?)?)?;
	//here set to optional, which is not confrom to :
	//Table 46 – REPLY and REQUEST attributes
	//but can match our demo file, which REQUEST is empty
requestReply_attibute_reference
		:	ID;
requestReply_attibute_itemMask
		:	ID;
requestReply_attibute_info
		:	ID;
requestReply_attibute_index
		:	ID;
*/
command_transaction_responseCode
		:	command_responseCode;

command_responseCode
		:	'RESPONSE_CODES' '{' responseCode_body '}';
responseCode_body
		:	responseCode_exp+;
responseCode_exp: 	responseCode_exp_value ',' responseCode_exp_type ',' responseCode_exp_description (','? responseCode_exp_help)? ';';
responseCode_exp_value
		:	direct_value;
responseCode_exp_type
		:	'DATA_ENTRY_ERROR'|'DATA_ENTRY_WARNING'|'MISC_ERROR'|'MISC_WARNING'|'MODE_ERROR'|'PROCESS_ERROR'|'SUCCESS';
responseCode_exp_description
		:	string_value;
responseCode_exp_help
		:	string_value;


/*******************************************************************************
7.6 COLLECTION in Profibus EDDL
8.4 Collections in HART EDDL
*******************************************************************************/
collection	:	'COLLECTION' collection_name '{' collection_body '}';
collection_name	:	collection_of | ID;
collection_of	:	'OF' collection_attr_itemType ID;
collection_body
		:	collection_attribute+;
collection_attribute
		:	collection_attr_lable | collection_attr_help | collection_attr_members; //collection_attr_validity
collection_attr_lable
		:	common_label;
collection_attr_help
		:	common_help;
collection_attr_itemType
		:	'AXIS' | 'BLOCK_A' | 'BLOCK_B' | 'CHART' | 'COLLECTION' | 'COMMAND' | 'CONNECTION' | 'DOMAIN' | 'EDIT_DISPLAY' | 'FILE' | 'GRAPH' | 'LIST' | 'MENU' | 'METHOD' | 'PROGRAM' | 'RECORD' | 'REFERENCE_ARRAY' | 'REFRESH' | 'RESPONSE_CODES' | 'SOURCE' | 'UNIT' | 'VALUE_ARRAY' | 'VARIABLE' | 'VARIABLE_LIST' | 'WAVEFORM' | 'WRITE_AS_ONE';
collection_attr_members
		:	'MEMBERS' '{' collection_attr_members_body '}';
collection_attr_members_body
		:	collection_attr_members_item+;
collection_attr_members_item
		:	collection_attr_members_item_name ',' collection_attr_members_item_ref (',' collection_attr_members_item_desc ',' collection_attr_members_item_help)? ';';
collection_attr_members_item_name
		:	ID;
collection_attr_members_item_ref
		:	ID;
collection_attr_members_item_desc
		:	DEFINE_IMPORTED_VALUE;
collection_attr_members_item_help
		:	DEFINE_IMPORTED_VALUE;


/*******************************************************************************
7.18 MENU
10.1 Menus
*******************************************************************************/
menu	:	'MENU' menu_identifier '{' menu_body '}' ;
menu_identifier
	:	ID;
menu_body
	:	menu_attribute+;
menu_attribute
	:	menu_label | menu_items; //TODO: add help,...
menu_label
	:	common_label;
menu_items
	:	'ITEMS' '{' menu_items_body '}';
menu_items_body
	:	menu_item (',' menu_item)*;
menu_item
	:	ID menu_item_attributes?;
menu_item_attributes
	:	'(' menu_item_attribute (',' menu_item_attribute)* ')';
menu_item_attribute
	:	'DISPLAY_VALUE' | 'HIDDEN' | 'READ_ONLY' | 'NO_LABEL' | 'NO_UNIT' | 'REVIEW';

    变成：

    copy into the antlr grammar code

    注意到，其.g的语法文件下面，除了Grammar，还有对应的Interpreter和Railroad View。

    4.然后再去转换为Antlr项目：

    configure Convert to ANTLR project

    然后什么变化好像都没有。

    不过再去查看选项时，就没了Configure项了：

    no configure option anymore

    5.然后就可以去编译项目了：

    antlr project then build project

    对应的，编译成功后：

    can found generated lexer and parser java and token file and console output

    console中有对应的log输出：

    ANTLR Parser Generator  Version 3.5.

    Using project classpath: No.

    Grammar: D:\DevRoot\android\android_root\HartEddl\HartEddl.g

    BUILD SUCCESSFUL

    Total time: 1 second

    然后也生成了对应的输出文件夹output和对应的lexer和parser的java文件，以及token文件。

    至此，编译.g文件，算是OK了。

    6.不过，此时注意到，当前环境下，还是无法识别antlr的库的：

    can not recognize antlr lib

    鼠标移动上去，出现提示：

    fix project setup for antlr lib

    但是却看到检测出来的antlr的jar是3.4的：

    projects setup fixes but is antlr 3.4 complete jar not 3.5 jar

    不是我们之前配置antlr时所添加的3.5的。

    7.所以，此处不用此办法。

    而是自己去添加正确的路径去：

    右击antlr项目->Properties->Java Build Path -> Libraries -> Add External JARs

    right antlr project choose properties

    java build path libraries add external jars

    添加对应的antlr的complete的jar包，此处为antlr-3.5-complete.jar，即可：

    added external antlr complete 3.5 jar lib

    然后项目中的代码，就可以找到antlr的库，就可以消除错误了：

    then can see referenced lib and code is ok

     

    【总结】

    至此，创建并编译antlr的项目，就完成了。

    接着，就是去折腾如何调试antlr代码：

    【记录】使用Eclipse开发Antlr：如何调试antlr项目

    转载请注明：在路上 » 【记录】使用Eclipse开发Antlr：创建antlr项目并编译

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