readme
This commit is contained in:
parent
ab8477b834
commit
d32375c1f1
12
README.md
12
README.md
@ -38,6 +38,18 @@ Result fill write in <lexer.js> file.
|
||||
-web-template=<web_template_file>
|
||||
```
|
||||
|
||||
## Web template example
|
||||
You can create template file for simplify web develop
|
||||
```javascript
|
||||
(function(){
|
||||
var deps = [];
|
||||
define(deps, function(){
|
||||
<%%LEXER%%>
|
||||
return Lexer;
|
||||
});
|
||||
})();
|
||||
```
|
||||
|
||||
## Test
|
||||
```bash
|
||||
node test.js
|
||||
|
@ -1,3 +1,3 @@
|
||||
#!/usr/bin/env bash
|
||||
|
||||
node main.js -in=./example/lexer.l -o=./example/lexer.js -t=node -logs
|
||||
node main.js -in=./lexer.l -o=./example/lexer.js -t=node -logs
|
456
example/lexer.l
456
example/lexer.l
@ -1,456 +0,0 @@
|
||||
var types = [
|
||||
"SLASH",
|
||||
"LSB",
|
||||
"RSB",
|
||||
"LCB",
|
||||
"RCB",
|
||||
"COLON",
|
||||
"COMMA",
|
||||
"DOT",
|
||||
"REM",
|
||||
"GT",
|
||||
"GTE",
|
||||
"LT",
|
||||
"LTE",
|
||||
"EQ",
|
||||
"NEQ",
|
||||
"LIKE",
|
||||
"NLIKE",
|
||||
"AND",
|
||||
"OR",
|
||||
"NOT",
|
||||
"ADDRESS",
|
||||
"OID",
|
||||
"OID_LITERAL",
|
||||
"TIME",
|
||||
"TIMEDIFF",
|
||||
"INTEGER_LITERAL",
|
||||
"FLOAT_LITERAL",
|
||||
"BOOL_LITERAL",
|
||||
"ID"
|
||||
];
|
||||
|
||||
var errors = {
|
||||
"-2": "end of search",
|
||||
"-1": "not found any lexemes or errors or anything else",
|
||||
"0": "success",
|
||||
"1": "found unknown symbol",
|
||||
"2": "not found close quote or singleQuote",
|
||||
"3": "Unexpected symbol in oid structure",
|
||||
"4": "Not found close bracket for Oid",
|
||||
};
|
||||
|
||||
var Lexer = function(_string){
|
||||
this._last_found_lexeme = {error: -1};
|
||||
this._end = false;
|
||||
this._error = false;
|
||||
this._string = _string;
|
||||
this._state = 1;
|
||||
this._yy_char = null;
|
||||
this._yy_lex_start = 0;
|
||||
this._yy_cursor = 0;
|
||||
this._yy_marker = 0;
|
||||
this._yy_accept = 0;
|
||||
};
|
||||
|
||||
Lexer.prototype = {
|
||||
types: types,
|
||||
errors: errors,
|
||||
_notFoundCloseQuote: function() {
|
||||
this._error = true;
|
||||
this._last_found_lexeme = {
|
||||
error: 2,
|
||||
start: this._yy_lex_start,
|
||||
end: this._yy_cursor
|
||||
};
|
||||
|
||||
console.log( print_f("Not found close quote start: %s", this._yy_cursor));
|
||||
},
|
||||
_unknownSymbol: function(){
|
||||
this._error = true;
|
||||
this._last_found_lexeme = {
|
||||
error: 1,
|
||||
start: this._yy_lex_start,
|
||||
end: this._yy_cursor
|
||||
};
|
||||
|
||||
console.log( print_f("Found unknown symbol on position: %s", this._yy_cursor));
|
||||
},
|
||||
_oidUnexpectedSymbol: function(){
|
||||
this._error = true;
|
||||
this._last_found_lexeme = {
|
||||
error: 3,
|
||||
start: this._yy_lex_start,
|
||||
end: this._yy_cursor
|
||||
};
|
||||
|
||||
console.log( print_f("Found unknown symbol in Oid on position: %s", this._yy_cursor));
|
||||
},
|
||||
_oidNotFoundCloseBracket: function(){
|
||||
this._error = true;
|
||||
this._last_found_lexeme = {
|
||||
error: 4,
|
||||
start: this._yy_lex_start,
|
||||
end: this._yy_cursor
|
||||
};
|
||||
|
||||
console.log( print_f("Not found close bracket for Oid"));
|
||||
},
|
||||
_foundLexeme: function(_lexeme) {
|
||||
console.log(print_f("found lex: %s; start: %s; end: %s; result => %s", _lexeme, this._yy_lex_start, this._yy_cursor, this._string.substring(this._yy_lex_start, this._yy_cursor)));
|
||||
this._last_found_lexeme = {
|
||||
error: 0,
|
||||
lexeme: _lexeme,
|
||||
value: this._string.substring(this._yy_lex_start, this._yy_cursor),
|
||||
start: this._yy_lex_start,
|
||||
end: this._yy_cursor
|
||||
};
|
||||
},
|
||||
_foundOidLexeme: function(_lexeme, _lsb, _rsb) {
|
||||
console.log(print_f("found lex: %s; start: %s; end: %s; result => %s", _lexeme, this._yy_lex_start, this._yy_cursor, this._string.substring(this._yy_lex_start, this._yy_cursor)));
|
||||
this._last_found_lexeme = {
|
||||
error: 0,
|
||||
lexeme: _lexeme,
|
||||
value: this._string.substring(this._yy_lex_start, this._yy_cursor),
|
||||
start: this._yy_lex_start,
|
||||
end: this._yy_cursor,
|
||||
lsb: _lsb,
|
||||
rsb: _rsb
|
||||
};
|
||||
},
|
||||
_endOfString: function(){
|
||||
console.log(print_f("search end\n"));
|
||||
this._end = true;
|
||||
this._last_found_lexeme = {
|
||||
error: -2
|
||||
};
|
||||
},
|
||||
_searchString: function () {
|
||||
var _quote = this._string[this._yy_cursor - 1];
|
||||
var found_back_slash = false;
|
||||
while(this._yy_cursor < this._string.length){
|
||||
this._yy_char = this._string[this._yy_cursor];
|
||||
if(_quote == '"') {
|
||||
switch (this._yy_char) {
|
||||
case "\\":
|
||||
found_back_slash = true;
|
||||
break;
|
||||
case '"':
|
||||
if(!found_back_slash) {
|
||||
this._yy_cursor++;
|
||||
this._foundLexeme("STRING_LITERAL");
|
||||
return;
|
||||
}
|
||||
found_back_slash = false;
|
||||
break;
|
||||
}
|
||||
} else if(_quote == "'") {
|
||||
switch (this._yy_char) {
|
||||
case "\\":
|
||||
found_back_slash = true;
|
||||
break;
|
||||
case "'":
|
||||
if(!found_back_slash) {
|
||||
this._yy_cursor++;
|
||||
this._foundLexeme("STRING_LITERAL");
|
||||
return;
|
||||
}
|
||||
found_back_slash = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
this._yy_cursor++;
|
||||
}
|
||||
|
||||
this._notFoundCloseQuote();
|
||||
},
|
||||
_searchOid: function (){
|
||||
var lsb, rsb;
|
||||
var state = 0;
|
||||
while(this._yy_cursor < this._string.length){
|
||||
switch(state){
|
||||
case 0:
|
||||
this._yy_char = this._string[this._yy_cursor];
|
||||
(function(){
|
||||
switch(this._yy_char){
|
||||
case " ":
|
||||
state = 0;
|
||||
this._yy_cursor++;
|
||||
break;
|
||||
case "[":
|
||||
lsb = {start: this._yy_cursor, end: this._yy_cursor + 1};
|
||||
state = 1;
|
||||
break;
|
||||
default:
|
||||
state = 5;
|
||||
}
|
||||
}.bind(this))();
|
||||
break;
|
||||
case 1:
|
||||
this._yy_char = this._string[++this._yy_cursor];
|
||||
(function(){
|
||||
switch(this._yy_char){
|
||||
case " ":
|
||||
state = 1;
|
||||
break;
|
||||
case "0":
|
||||
case "1":
|
||||
case "2":
|
||||
case "3":
|
||||
case "4":
|
||||
case "5":
|
||||
case "6":
|
||||
case "7":
|
||||
case "8":
|
||||
case "9":
|
||||
state = 2;
|
||||
break;
|
||||
case "]":
|
||||
state = 4;
|
||||
break;
|
||||
default:
|
||||
state = 5;
|
||||
}
|
||||
}.bind(this))();
|
||||
break;
|
||||
case 2:
|
||||
this._yy_char = this._string[++this._yy_cursor];
|
||||
(function(){
|
||||
switch(this._yy_char){
|
||||
case " ":
|
||||
case "0":
|
||||
case "1":
|
||||
case "2":
|
||||
case "3":
|
||||
case "4":
|
||||
case "5":
|
||||
case "6":
|
||||
case "7":
|
||||
case "8":
|
||||
case "9":
|
||||
state = 2;
|
||||
break;
|
||||
case ".":
|
||||
state = 3;
|
||||
break;
|
||||
case "]":
|
||||
state = 4;
|
||||
break;
|
||||
default:
|
||||
state = 5;
|
||||
}
|
||||
}.bind(this))();
|
||||
break;
|
||||
case 3:
|
||||
this._yy_char = this._string[++this._yy_cursor];
|
||||
(function(){
|
||||
switch(this._yy_char){
|
||||
case " ":
|
||||
case "0":
|
||||
case "1":
|
||||
case "2":
|
||||
case "3":
|
||||
case "4":
|
||||
case "5":
|
||||
case "6":
|
||||
case "7":
|
||||
case "8":
|
||||
case "9":
|
||||
state = 2;
|
||||
break;
|
||||
default:
|
||||
state = 5;
|
||||
}
|
||||
}.bind(this))();
|
||||
break;
|
||||
case 4:
|
||||
rsb = {start: this._yy_cursor, end: this._yy_cursor + 1};
|
||||
++this._yy_cursor;
|
||||
this._foundOidLexeme("OID_LITERAL", lsb, rsb);
|
||||
return;
|
||||
case 5:
|
||||
this._oidUnexpectedSymbol();
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
this._oidNotFoundCloseBracket();
|
||||
},
|
||||
_set_next: function(){
|
||||
this._yy_accept = 0;
|
||||
this._state = 1;
|
||||
this._yy_lex_start = this._yy_cursor;
|
||||
this._yy_marker = this._yy_cursor;
|
||||
},
|
||||
next: function(){
|
||||
if(this._end || this._error) return null;
|
||||
|
||||
this.search();
|
||||
return this.token();
|
||||
},
|
||||
token: function(){
|
||||
return this._last_found_lexeme;
|
||||
},
|
||||
search: function(){
|
||||
if(this._end) return false;
|
||||
|
||||
while(true){
|
||||
switch(id) {
|
||||
|
||||
START/*!re2c
|
||||
re2c:define:YYCTYPE = _r2c_var_;
|
||||
re2c:define:YYCURSOR = this._yy_cursor;
|
||||
re2c:define:YYMARKER = this._yy_marker;
|
||||
re2c:yyfill:enable = 0;
|
||||
|
||||
D = [0-9];
|
||||
DSEQ = D+;
|
||||
|
||||
end = "\x00";
|
||||
L = [A-Za-z_];
|
||||
|
||||
CR = "\r";
|
||||
LF = "\n";
|
||||
CRLF = CR?LF;
|
||||
INTEGER = "-"?D+;
|
||||
SP = " ";
|
||||
TAB = "\t";
|
||||
|
||||
DELIM = SP|TAB|CR|LF;
|
||||
|
||||
LSB = "[";
|
||||
SLASH = "/";
|
||||
RSB = "]";
|
||||
LCB = "(";
|
||||
RCB = ")";
|
||||
COLON = ":";
|
||||
COMMA = ",";
|
||||
DOT = ".";
|
||||
REM = "%";
|
||||
GT = ">";
|
||||
GTE = ">=";
|
||||
LT = "<";
|
||||
LTE = "<=";
|
||||
EQ = "==";
|
||||
NEQ = "!=";
|
||||
|
||||
AND = 'AND';
|
||||
OR = 'OR';
|
||||
NOT = 'NOT';
|
||||
LIKE = 'LIKE';
|
||||
NLIKE = 'NLIKE';
|
||||
|
||||
ADDRESS = "Address";
|
||||
TIME = "Time";
|
||||
OID = "Oid";
|
||||
TIMEDIFF = "TimeDiff";
|
||||
|
||||
ID = L(L|D)*;
|
||||
BOOL_LITERAL = 'true'|'false';
|
||||
INTEGER_LITERAL = INTEGER;
|
||||
FLOAT_LITERAL = "-"? D* "." D+ ("e" "-"? D+)?;
|
||||
|
||||
QU = "\"";
|
||||
SQU = "'";
|
||||
|
||||
|
||||
|
||||
|
||||
end { this._endOfString(); return; }
|
||||
|
||||
SLASH { this._foundLexeme("SLASH"); this._set_next(); return; }
|
||||
LSB { this._foundLexeme("LSB"); this._set_next(); return; }
|
||||
RSB { this._foundLexeme("RSB"); this._set_next(); return; }
|
||||
LCB { this._foundLexeme("LCB"); this._set_next(); return; }
|
||||
RCB { this._foundLexeme("RCB"); this._set_next(); return; }
|
||||
COLON { this._foundLexeme("COLON"); this._set_next(); return; }
|
||||
COMMA { this._foundLexeme("COMMA"); this._set_next(); return; }
|
||||
DOT { this._foundLexeme("DOT"); this._set_next(); return; }
|
||||
REM { this._foundLexeme("REM"); this._set_next(); return; }
|
||||
|
||||
GT { this._foundLexeme("GT"); this._set_next(); return; }
|
||||
GTE { this._foundLexeme("GTE"); this._set_next(); return; }
|
||||
LT { this._foundLexeme("LT"); this._set_next(); return; }
|
||||
LTE { this._foundLexeme("LTE"); this._set_next(); return; }
|
||||
EQ { this._foundLexeme("EQ"); this._set_next(); return; }
|
||||
NEQ { this._foundLexeme("NEQ"); this._set_next(); return; }
|
||||
LIKE { this._foundLexeme("LIKE"); this._set_next(); return; }
|
||||
NLIKE { this._foundLexeme("NLIKE"); this._set_next(); return; }
|
||||
|
||||
AND { this._foundLexeme("AND"); this._set_next(); return; }
|
||||
OR { this._foundLexeme("OR"); this._set_next(); return; }
|
||||
NOT { this._foundLexeme("NOT"); this._set_next(); return; }
|
||||
|
||||
ADDRESS { this._foundLexeme("ADDRESS"); this._set_next(); return; }
|
||||
TIME { this._foundLexeme("TIME"); this._set_next(); return; }
|
||||
TIMEDIFF { this._foundLexeme("TIMEDIFF"); this._set_next(); return; }
|
||||
OID { id = 100000001; break; }
|
||||
|
||||
INTEGER_LITERAL { this._foundLexeme("INTEGER_LITERAL"); this._set_next(); return; }
|
||||
FLOAT_LITERAL { this._foundLexeme("FLOAT_LITERAL"); this._set_next(); return; }
|
||||
BOOL_LITERAL { this._foundLexeme("BOOL_LITERAL"); this._set_next(); return; }
|
||||
|
||||
ID { this._foundLexeme("ID"); this._set_next(); return; }
|
||||
DELIM { this._set_next(); break; }
|
||||
|
||||
QU|SQU { id = 100000000; break;}
|
||||
|
||||
[^] { this._unknownSymbol(); this._set_next(); return; }
|
||||
*/END &&<STRING&&
|
||||
&&<OID&&
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
&&>STRING
|
||||
case 100000000:
|
||||
this._searchString();
|
||||
this._set_next();
|
||||
return;
|
||||
&&
|
||||
|
||||
&&>OID
|
||||
case 100000001:
|
||||
this._searchOid();
|
||||
this._set_next();
|
||||
return;
|
||||
&&
|
||||
|
||||
var print_f = function() {
|
||||
var r_str = "";
|
||||
var next = arguments[0];
|
||||
|
||||
var rx = /(%[a-zA-Z]{1})/;
|
||||
var a = 1,
|
||||
match;
|
||||
while (match = rx.exec(next)) {
|
||||
var prev = next.substring(0, match.index);
|
||||
var macro = next.substring(match.index + 1, match.index + 2);
|
||||
next = next.substring(match.index + 2, next.length);
|
||||
r_str += prev;
|
||||
|
||||
var arg = arguments[a];
|
||||
|
||||
if (arg !== undefined) {
|
||||
switch (macro) {
|
||||
case "s":
|
||||
r_str += arg.toString();
|
||||
break;
|
||||
case "i":
|
||||
r_str += parseInt(arg);
|
||||
break;
|
||||
case "f":
|
||||
r_str += parseFloat(arg);
|
||||
break;
|
||||
}
|
||||
} else {
|
||||
r_str += "%" + macro;
|
||||
}
|
||||
a++;
|
||||
}
|
||||
|
||||
r_str += next;
|
||||
|
||||
return r_str;
|
||||
};
|
Loading…
Reference in New Issue
Block a user