Initial commit with draft parser inplace.

This commit is contained in:
knsv
2014-11-03 00:02:29 +01:00
parent a8e4d37c13
commit d9b9288da9
7 changed files with 1010 additions and 0 deletions

24
bower.json Normal file
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{
"name": "mermaid",
"version": "0.0.1",
"authors": [
"knsv <knut@sveido.com>"
],
"description": "Markdownish syntax for generating diagrams",
"main": "mermaid.js",
"moduleType": [
"amd"
],
"keywords": [
"diagram",
"markdown"
],
"license": "MIT",
"ignore": [
"**/.*",
"node_modules",
"bower_components",
"test",
"tests"
]
}

15
gulpfile.js Normal file
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var gulp = require('gulp');
var jison = require('gulp-jison');
var shell = require('gulp-shell')
gulp.task('jison', function() {
return gulp.src('./src/*.jison')
.pipe(jison({ moduleType: 'amd' }))
.pipe(gulp.dest('./src/'));
});
gulp.task('shorthand', shell.task([
'echo hello',
'echo world',
'jison src/mermaid.jison -o src/mermaid.js'
]))

17
package.json Normal file
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{
"name": "mermaid",
"version": "0.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "BSD-2-Clause",
"devDependencies": {
"gulp": "~3.8.9",
"jison": "~0.4.15",
"jasmine": "~2.0.1",
"gulp-jison": "~1.0.0"
}
}

60
src/calc.jison Normal file
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/* description: Parses end executes mathematical expressions. */
/* lexical grammar */
%lex
%%
\s+ /* skip whitespace */
[0-9]+("."[0-9]+)?\b return 'NUMBER';
\#[a-f0-9]+ return 'HEX';
"*" return '*';
"/" return '/';
"-" return '-';
"+" return '+';
"^" return '^';
"(" return '(';
")" return ')';
"PI" return 'PI';
"E" return 'E';
<<EOF>> return 'EOF';
/lex
/* operator associations and precedence */
%left '+' '-'
%left '*' '/'
%left '^'
%left UMINUS
%start expressions
%% /* language grammar */
expressions
: e EOF
{console.log($1); return $1;}
;
e
: e '+' e
{$$ = $1+$3;}
| e '-' e
{$$ = $1-$3;}
| e '*' e
{$$ = $1*$3;}
| e '/' e
{$$ = $1/$3;}
| e '^' e
{$$ = Math.pow($1, $3);}
| '-' e %prec UMINUS
{$$ = -$2;}
| '(' e ')'
{$$ = $2;}
| NUMBER
{$$ = Number(yytext);}
| E
{$$ = Math.E;}
| PI
{$$ = Math.PI;}
;

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src/mermaid.jison Normal file
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/* description: Parses end executes mathematical expressions. */
/* lexical grammar */
%lex
%%
"style" return 'STYLE';
"background" return 'BKG';
"red" return 'COLOR';
"blue" return 'COLOR';
"black" return 'COLOR';
\#[a-f0-9]+ return 'HEX';
[0-9]+ return 'NUM';
"border" return 'BORDER';
"dotted" return 'BORDER_STYLE';
"dashed" return 'BORDER_STYLE';
"solid" return 'BORDER_STYLE';
"px" return 'UNIT';
"pt" return 'UNIT';
"dot" return 'UNIT';
":" return 'COLON';
";" return ';';
"," return 'COMMA';
\-\-[x] return 'ARROW_CROSS';
\-\-">" return 'ARROW_POINT';
\-\-[o] return 'ARROW_CIRCLE';
\-\-\- return 'ARROW_OPEN';
[a-zA-Z]+ return 'ALPHA';
"|" return 'PIPE';
"(" return 'PS';
")" return 'PE';
"[" return 'SQS';
"]" return 'SQE';
"{" return 'DIAMOND_START'
"}" return 'DIAMOND_STOP'
\s return 'SPACE';
\n return 'NEWLINE';
<<EOF>> return 'EOF';
/lex
/* operator associations and precedence */
%left '^'
%start expressions
%% /* language grammar */
expressions
: graph EOF
{return $1;}
;
graph
: SPACE graph
{ $$ = $2;}
| edge ';' graph
{ $$ = $3;}
| edge ';'
{ $$ = $1;}
;
edge: vertex link vertex PIPE text
{ yy.addLink($1,$3,$2,$5);$$ = 'oy'}
| vertex link vertex
{ yy.addLink($1,$3,$2);$$ = 'oy'}
| vertex
{$$ = 'yo';}
;
vertex: STYLE SPACE ALPHA SPACE styles
{$$ = $1;yy.addVertex($3,undefined,undefined,$5);}
| ALPHA SQS text SQE
{$$ = $1;yy.addVertex($1,$3,'square');}
| ALPHA PS text PE
{$$ = $1;yy.addVertex($1,$3,'round');}
| ALPHA DIAMOND_START text DIAMOND_STOP
{$$ = $1;yy.addVertex($1,$3,'diamond');}
| ALPHA
{$$ = $1;yy.addVertex($1);}
;
// Characters and spaces
text: ALPHA SPACE text
{$$ = $1 + ' ' +$3;}
| ALPHA SPACE
{$$ = $1;}
| ALPHA
{$$ = $1;}
;
link: ARROW_POINT
{$$ = {"type":"arrow"};}
| ARROW_CIRCLE
{$$ = {"type":"arrow_circle"};}
| ARROW_CROSS
{$$ = {"type":"arrow_cross"};}
| ARROW_OPEN
{$$ = {"type":"arrow_open"};}
;
styles:
styledef
{$$ = [$1];}
| styles COMMA styledef
{console.log('in styles:'+JSON.stringify($1));$1.push($3);$$ = $1;}
;
styledef: BKG COLON colordef
{$$={"background":$3}}
| COL COLON COLORDEF
{$$={"color":$3}}
| BORDER COLON borderWidth SPACE borderStyle SPACE colordef
{$$={"border":$3+' '+$5+' '+$7}}
;
colordef: COLOR
{$$ = yytext;}
| HEX
{$$ = yytext;}
;
borderWidth: NUM UNIT
{$$ = $1+''+$2;}
;
borderStyle: BORDER_STYLE
{$$ = $1;}
;

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src/mermaid.js Normal file
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/* parser generated by jison 0.4.15 */
/*
Returns a Parser object of the following structure:
Parser: {
yy: {}
}
Parser.prototype: {
yy: {},
trace: function(),
symbols_: {associative list: name ==> number},
terminals_: {associative list: number ==> name},
productions_: [...],
performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate, $$, _$),
table: [...],
defaultActions: {...},
parseError: function(str, hash),
parse: function(input),
lexer: {
EOF: 1,
parseError: function(str, hash),
setInput: function(input),
input: function(),
unput: function(str),
more: function(),
less: function(n),
pastInput: function(),
upcomingInput: function(),
showPosition: function(),
test_match: function(regex_match_array, rule_index),
next: function(),
lex: function(),
begin: function(condition),
popState: function(),
_currentRules: function(),
topState: function(),
pushState: function(condition),
options: {
ranges: boolean (optional: true ==> token location info will include a .range[] member)
flex: boolean (optional: true ==> flex-like lexing behaviour where the rules are tested exhaustively to find the longest match)
backtrack_lexer: boolean (optional: true ==> lexer regexes are tested in order and for each matching regex the action code is invoked; the lexer terminates the scan when a token is returned by the action code)
},
performAction: function(yy, yy_, $avoiding_name_collisions, YY_START),
rules: [...],
conditions: {associative list: name ==> set},
}
}
token location info (@$, _$, etc.): {
first_line: n,
last_line: n,
first_column: n,
last_column: n,
range: [start_number, end_number] (where the numbers are indexes into the input string, regular zero-based)
}
the parseError function receives a 'hash' object with these members for lexer and parser errors: {
text: (matched text)
token: (the produced terminal token, if any)
line: (yylineno)
}
while parser (grammar) errors will also provide these members, i.e. parser errors deliver a superset of attributes: {
loc: (yylloc)
expected: (string describing the set of expected tokens)
recoverable: (boolean: TRUE when the parser has a error recovery rule available for this particular error)
}
*/
var parser = (function(){
var o=function(k,v,o,l){for(o=o||{},l=k.length;l--;o[k[l]]=v);return o},$V0=[1,3],$V1=[1,6],$V2=[1,7],$V3=[8,11,22,23,24,25],$V4=[13,14],$V5=[1,24],$V6=[8,17,19,21],$V7=[1,36],$V8=[1,37],$V9=[1,38],$Va=[8,11,22,23,24,25,27],$Vb=[1,46],$Vc=[1,47];
var parser = {trace: function trace() { },
yy: {},
symbols_: {"error":2,"expressions":3,"graph":4,"EOF":5,"SPACE":6,"edge":7,";":8,"vertex":9,"link":10,"PIPE":11,"text":12,"STYLE":13,"ALPHA":14,"styles":15,"SQS":16,"SQE":17,"PS":18,"PE":19,"DIAMOND_START":20,"DIAMOND_STOP":21,"ARROW_POINT":22,"ARROW_CIRCLE":23,"ARROW_CROSS":24,"ARROW_OPEN":25,"styledef":26,"COMMA":27,"BKG":28,"COLON":29,"colordef":30,"COL":31,"COLORDEF":32,"BORDER":33,"borderWidth":34,"borderStyle":35,"COLOR":36,"HEX":37,"NUM":38,"UNIT":39,"BORDER_STYLE":40,"$accept":0,"$end":1},
terminals_: {2:"error",5:"EOF",6:"SPACE",8:";",11:"PIPE",13:"STYLE",14:"ALPHA",16:"SQS",17:"SQE",18:"PS",19:"PE",20:"DIAMOND_START",21:"DIAMOND_STOP",22:"ARROW_POINT",23:"ARROW_CIRCLE",24:"ARROW_CROSS",25:"ARROW_OPEN",27:"COMMA",28:"BKG",29:"COLON",31:"COL",32:"COLORDEF",33:"BORDER",36:"COLOR",37:"HEX",38:"NUM",39:"UNIT",40:"BORDER_STYLE"},
productions_: [0,[3,2],[4,2],[4,3],[4,2],[7,5],[7,3],[7,1],[9,5],[9,4],[9,4],[9,4],[9,1],[12,3],[12,2],[12,1],[10,1],[10,1],[10,1],[10,1],[15,1],[15,3],[26,3],[26,3],[26,7],[30,1],[30,1],[34,2],[35,1]],
performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate /* action[1] */, $$ /* vstack */, _$ /* lstack */) {
/* this == yyval */
var $0 = $$.length - 1;
switch (yystate) {
case 1:
return $$[$0-1];
break;
case 2: case 3:
this.$ = $$[$0];
break;
case 4:
this.$ = $$[$0-1];
break;
case 5:
yy.addLink($$[$0-4],$$[$0-2],$$[$0-3],$$[$0]);this.$ = 'oy'
break;
case 6:
yy.addLink($$[$0-2],$$[$0],$$[$0-1]);this.$ = 'oy'
break;
case 7:
this.$ = 'yo';
break;
case 8:
this.$ = $$[$0-4];yy.addVertex($$[$0-2],undefined,undefined,$$[$0]);
break;
case 9:
this.$ = $$[$0-3];yy.addVertex($$[$0-3],$$[$0-1],'square');
break;
case 10:
this.$ = $$[$0-3];yy.addVertex($$[$0-3],$$[$0-1],'round');
break;
case 11:
this.$ = $$[$0-3];yy.addVertex($$[$0-3],$$[$0-1],'diamond');
break;
case 12:
this.$ = $$[$0];yy.addVertex($$[$0]);
break;
case 13:
this.$ = $$[$0-2] + ' ' +$$[$0];
break;
case 14:
this.$ = $$[$0-1];
break;
case 15: case 28:
this.$ = $$[$0];
break;
case 16:
this.$ = {"type":"arrow"};
break;
case 17:
this.$ = {"type":"arrow_circle"};
break;
case 18:
this.$ = {"type":"arrow_cross"};
break;
case 19:
this.$ = {"type":"arrow_open"};
break;
case 20:
this.$ = [$$[$0]];
break;
case 21:
console.log('in styles:'+JSON.stringify($$[$0-2]));$$[$0-2].push($$[$0]);this.$ = $$[$0-2];
break;
case 22:
this.$={"background":$$[$0]}
break;
case 23:
this.$={"color":$$[$0]}
break;
case 24:
this.$={"border":$$[$0-4]+' '+$$[$0-2]+' '+$$[$0]}
break;
case 25: case 26:
this.$ = yytext;
break;
case 27:
this.$ = $$[$0-1]+''+$$[$0];
break;
}
},
table: [{3:1,4:2,6:$V0,7:4,9:5,13:$V1,14:$V2},{1:[3]},{5:[1,8]},{4:9,6:$V0,7:4,9:5,13:$V1,14:$V2},{8:[1,10]},{8:[2,7],10:11,22:[1,12],23:[1,13],24:[1,14],25:[1,15]},{6:[1,16]},o($V3,[2,12],{16:[1,17],18:[1,18],20:[1,19]}),{1:[2,1]},{5:[2,2]},{4:20,5:[2,4],6:$V0,7:4,9:5,13:$V1,14:$V2},{9:21,13:$V1,14:$V2},o($V4,[2,16]),o($V4,[2,17]),o($V4,[2,18]),o($V4,[2,19]),{14:[1,22]},{12:23,14:$V5},{12:25,14:$V5},{12:26,14:$V5},{5:[2,3]},{8:[2,6],11:[1,27]},{6:[1,28]},{17:[1,29]},o($V6,[2,15],{6:[1,30]}),{19:[1,31]},{21:[1,32]},{12:33,14:$V5},{15:34,26:35,28:$V7,31:$V8,33:$V9},o($V3,[2,9]),o($V6,[2,14],{12:39,14:$V5}),o($V3,[2,10]),o($V3,[2,11]),{8:[2,5]},o($V3,[2,8],{27:[1,40]}),o($Va,[2,20]),{29:[1,41]},{29:[1,42]},{29:[1,43]},o($V6,[2,13]),{26:44,28:$V7,31:$V8,33:$V9},{30:45,36:$Vb,37:$Vc},{32:[1,48]},{34:49,38:[1,50]},o($Va,[2,21]),o($Va,[2,22]),o($Va,[2,25]),o($Va,[2,26]),o($Va,[2,23]),{6:[1,51]},{39:[1,52]},{35:53,40:[1,54]},{6:[2,27]},{6:[1,55]},{6:[2,28]},{30:56,36:$Vb,37:$Vc},o($Va,[2,24])],
defaultActions: {8:[2,1],9:[2,2],20:[2,3],33:[2,5],52:[2,27],54:[2,28]},
parseError: function parseError(str, hash) {
if (hash.recoverable) {
this.trace(str);
} else {
throw new Error(str);
}
},
parse: function parse(input) {
var self = this, stack = [0], tstack = [], vstack = [null], lstack = [], table = this.table, yytext = '', yylineno = 0, yyleng = 0, recovering = 0, TERROR = 2, EOF = 1;
var args = lstack.slice.call(arguments, 1);
var lexer = Object.create(this.lexer);
var sharedState = { yy: {} };
for (var k in this.yy) {
if (Object.prototype.hasOwnProperty.call(this.yy, k)) {
sharedState.yy[k] = this.yy[k];
}
}
lexer.setInput(input, sharedState.yy);
sharedState.yy.lexer = lexer;
sharedState.yy.parser = this;
if (typeof lexer.yylloc == 'undefined') {
lexer.yylloc = {};
}
var yyloc = lexer.yylloc;
lstack.push(yyloc);
var ranges = lexer.options && lexer.options.ranges;
if (typeof sharedState.yy.parseError === 'function') {
this.parseError = sharedState.yy.parseError;
} else {
this.parseError = Object.getPrototypeOf(this).parseError;
}
function popStack(n) {
stack.length = stack.length - 2 * n;
vstack.length = vstack.length - n;
lstack.length = lstack.length - n;
}
_token_stack:
function lex() {
var token;
token = lexer.lex() || EOF;
if (typeof token !== 'number') {
token = self.symbols_[token] || token;
}
return token;
}
var symbol, preErrorSymbol, state, action, a, r, yyval = {}, p, len, newState, expected;
while (true) {
state = stack[stack.length - 1];
if (this.defaultActions[state]) {
action = this.defaultActions[state];
} else {
if (symbol === null || typeof symbol == 'undefined') {
symbol = lex();
}
action = table[state] && table[state][symbol];
}
if (typeof action === 'undefined' || !action.length || !action[0]) {
var errStr = '';
expected = [];
for (p in table[state]) {
if (this.terminals_[p] && p > TERROR) {
expected.push('\'' + this.terminals_[p] + '\'');
}
}
if (lexer.showPosition) {
errStr = 'Parse error on line ' + (yylineno + 1) + ':\n' + lexer.showPosition() + '\nExpecting ' + expected.join(', ') + ', got \'' + (this.terminals_[symbol] || symbol) + '\'';
} else {
errStr = 'Parse error on line ' + (yylineno + 1) + ': Unexpected ' + (symbol == EOF ? 'end of input' : '\'' + (this.terminals_[symbol] || symbol) + '\'');
}
this.parseError(errStr, {
text: lexer.match,
token: this.terminals_[symbol] || symbol,
line: lexer.yylineno,
loc: yyloc,
expected: expected
});
}
if (action[0] instanceof Array && action.length > 1) {
throw new Error('Parse Error: multiple actions possible at state: ' + state + ', token: ' + symbol);
}
switch (action[0]) {
case 1:
stack.push(symbol);
vstack.push(lexer.yytext);
lstack.push(lexer.yylloc);
stack.push(action[1]);
symbol = null;
if (!preErrorSymbol) {
yyleng = lexer.yyleng;
yytext = lexer.yytext;
yylineno = lexer.yylineno;
yyloc = lexer.yylloc;
if (recovering > 0) {
recovering--;
}
} else {
symbol = preErrorSymbol;
preErrorSymbol = null;
}
break;
case 2:
len = this.productions_[action[1]][1];
yyval.$ = vstack[vstack.length - len];
yyval._$ = {
first_line: lstack[lstack.length - (len || 1)].first_line,
last_line: lstack[lstack.length - 1].last_line,
first_column: lstack[lstack.length - (len || 1)].first_column,
last_column: lstack[lstack.length - 1].last_column
};
if (ranges) {
yyval._$.range = [
lstack[lstack.length - (len || 1)].range[0],
lstack[lstack.length - 1].range[1]
];
}
r = this.performAction.apply(yyval, [
yytext,
yyleng,
yylineno,
sharedState.yy,
action[1],
vstack,
lstack
].concat(args));
if (typeof r !== 'undefined') {
return r;
}
if (len) {
stack = stack.slice(0, -1 * len * 2);
vstack = vstack.slice(0, -1 * len);
lstack = lstack.slice(0, -1 * len);
}
stack.push(this.productions_[action[1]][0]);
vstack.push(yyval.$);
lstack.push(yyval._$);
newState = table[stack[stack.length - 2]][stack[stack.length - 1]];
stack.push(newState);
break;
case 3:
return true;
}
}
return true;
}};
/* generated by jison-lex 0.3.4 */
var lexer = (function(){
var lexer = ({
EOF:1,
parseError:function parseError(str, hash) {
if (this.yy.parser) {
this.yy.parser.parseError(str, hash);
} else {
throw new Error(str);
}
},
// resets the lexer, sets new input
setInput:function (input, yy) {
this.yy = yy || this.yy || {};
this._input = input;
this._more = this._backtrack = this.done = false;
this.yylineno = this.yyleng = 0;
this.yytext = this.matched = this.match = '';
this.conditionStack = ['INITIAL'];
this.yylloc = {
first_line: 1,
first_column: 0,
last_line: 1,
last_column: 0
};
if (this.options.ranges) {
this.yylloc.range = [0,0];
}
this.offset = 0;
return this;
},
// consumes and returns one char from the input
input:function () {
var ch = this._input[0];
this.yytext += ch;
this.yyleng++;
this.offset++;
this.match += ch;
this.matched += ch;
var lines = ch.match(/(?:\r\n?|\n).*/g);
if (lines) {
this.yylineno++;
this.yylloc.last_line++;
} else {
this.yylloc.last_column++;
}
if (this.options.ranges) {
this.yylloc.range[1]++;
}
this._input = this._input.slice(1);
return ch;
},
// unshifts one char (or a string) into the input
unput:function (ch) {
var len = ch.length;
var lines = ch.split(/(?:\r\n?|\n)/g);
this._input = ch + this._input;
this.yytext = this.yytext.substr(0, this.yytext.length - len);
//this.yyleng -= len;
this.offset -= len;
var oldLines = this.match.split(/(?:\r\n?|\n)/g);
this.match = this.match.substr(0, this.match.length - 1);
this.matched = this.matched.substr(0, this.matched.length - 1);
if (lines.length - 1) {
this.yylineno -= lines.length - 1;
}
var r = this.yylloc.range;
this.yylloc = {
first_line: this.yylloc.first_line,
last_line: this.yylineno + 1,
first_column: this.yylloc.first_column,
last_column: lines ?
(lines.length === oldLines.length ? this.yylloc.first_column : 0)
+ oldLines[oldLines.length - lines.length].length - lines[0].length :
this.yylloc.first_column - len
};
if (this.options.ranges) {
this.yylloc.range = [r[0], r[0] + this.yyleng - len];
}
this.yyleng = this.yytext.length;
return this;
},
// When called from action, caches matched text and appends it on next action
more:function () {
this._more = true;
return this;
},
// When called from action, signals the lexer that this rule fails to match the input, so the next matching rule (regex) should be tested instead.
reject:function () {
if (this.options.backtrack_lexer) {
this._backtrack = true;
} else {
return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n' + this.showPosition(), {
text: "",
token: null,
line: this.yylineno
});
}
return this;
},
// retain first n characters of the match
less:function (n) {
this.unput(this.match.slice(n));
},
// displays already matched input, i.e. for error messages
pastInput:function () {
var past = this.matched.substr(0, this.matched.length - this.match.length);
return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, "");
},
// displays upcoming input, i.e. for error messages
upcomingInput:function () {
var next = this.match;
if (next.length < 20) {
next += this._input.substr(0, 20-next.length);
}
return (next.substr(0,20) + (next.length > 20 ? '...' : '')).replace(/\n/g, "");
},
// displays the character position where the lexing error occurred, i.e. for error messages
showPosition:function () {
var pre = this.pastInput();
var c = new Array(pre.length + 1).join("-");
return pre + this.upcomingInput() + "\n" + c + "^";
},
// test the lexed token: return FALSE when not a match, otherwise return token
test_match:function (match, indexed_rule) {
var token,
lines,
backup;
if (this.options.backtrack_lexer) {
// save context
backup = {
yylineno: this.yylineno,
yylloc: {
first_line: this.yylloc.first_line,
last_line: this.last_line,
first_column: this.yylloc.first_column,
last_column: this.yylloc.last_column
},
yytext: this.yytext,
match: this.match,
matches: this.matches,
matched: this.matched,
yyleng: this.yyleng,
offset: this.offset,
_more: this._more,
_input: this._input,
yy: this.yy,
conditionStack: this.conditionStack.slice(0),
done: this.done
};
if (this.options.ranges) {
backup.yylloc.range = this.yylloc.range.slice(0);
}
}
lines = match[0].match(/(?:\r\n?|\n).*/g);
if (lines) {
this.yylineno += lines.length;
}
this.yylloc = {
first_line: this.yylloc.last_line,
last_line: this.yylineno + 1,
first_column: this.yylloc.last_column,
last_column: lines ?
lines[lines.length - 1].length - lines[lines.length - 1].match(/\r?\n?/)[0].length :
this.yylloc.last_column + match[0].length
};
this.yytext += match[0];
this.match += match[0];
this.matches = match;
this.yyleng = this.yytext.length;
if (this.options.ranges) {
this.yylloc.range = [this.offset, this.offset += this.yyleng];
}
this._more = false;
this._backtrack = false;
this._input = this._input.slice(match[0].length);
this.matched += match[0];
token = this.performAction.call(this, this.yy, this, indexed_rule, this.conditionStack[this.conditionStack.length - 1]);
if (this.done && this._input) {
this.done = false;
}
if (token) {
return token;
} else if (this._backtrack) {
// recover context
for (var k in backup) {
this[k] = backup[k];
}
return false; // rule action called reject() implying the next rule should be tested instead.
}
return false;
},
// return next match in input
next:function () {
if (this.done) {
return this.EOF;
}
if (!this._input) {
this.done = true;
}
var token,
match,
tempMatch,
index;
if (!this._more) {
this.yytext = '';
this.match = '';
}
var rules = this._currentRules();
for (var i = 0; i < rules.length; i++) {
tempMatch = this._input.match(this.rules[rules[i]]);
if (tempMatch && (!match || tempMatch[0].length > match[0].length)) {
match = tempMatch;
index = i;
if (this.options.backtrack_lexer) {
token = this.test_match(tempMatch, rules[i]);
if (token !== false) {
return token;
} else if (this._backtrack) {
match = false;
continue; // rule action called reject() implying a rule MISmatch.
} else {
// else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
return false;
}
} else if (!this.options.flex) {
break;
}
}
}
if (match) {
token = this.test_match(match, rules[index]);
if (token !== false) {
return token;
}
// else: this is a lexer rule which consumes input without producing a token (e.g. whitespace)
return false;
}
if (this._input === "") {
return this.EOF;
} else {
return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. Unrecognized text.\n' + this.showPosition(), {
text: "",
token: null,
line: this.yylineno
});
}
},
// return next match that has a token
lex:function lex() {
var r = this.next();
if (r) {
return r;
} else {
return this.lex();
}
},
// activates a new lexer condition state (pushes the new lexer condition state onto the condition stack)
begin:function begin(condition) {
this.conditionStack.push(condition);
},
// pop the previously active lexer condition state off the condition stack
popState:function popState() {
var n = this.conditionStack.length - 1;
if (n > 0) {
return this.conditionStack.pop();
} else {
return this.conditionStack[0];
}
},
// produce the lexer rule set which is active for the currently active lexer condition state
_currentRules:function _currentRules() {
if (this.conditionStack.length && this.conditionStack[this.conditionStack.length - 1]) {
return this.conditions[this.conditionStack[this.conditionStack.length - 1]].rules;
} else {
return this.conditions["INITIAL"].rules;
}
},
// return the currently active lexer condition state; when an index argument is provided it produces the N-th previous condition state, if available
topState:function topState(n) {
n = this.conditionStack.length - 1 - Math.abs(n || 0);
if (n >= 0) {
return this.conditionStack[n];
} else {
return "INITIAL";
}
},
// alias for begin(condition)
pushState:function pushState(condition) {
this.begin(condition);
},
// return the number of states currently on the stack
stateStackSize:function stateStackSize() {
return this.conditionStack.length;
},
options: {},
performAction: function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) {
var YYSTATE=YY_START;
switch($avoiding_name_collisions) {
case 0:return 13;
break;
case 1:return 28;
break;
case 2:return 36;
break;
case 3:return 36;
break;
case 4:return 36;
break;
case 5:return 37;
break;
case 6:return 38;
break;
case 7:return 33;
break;
case 8:return 40;
break;
case 9:return 40;
break;
case 10:return 40;
break;
case 11:return 39;
break;
case 12:return 39;
break;
case 13:return 39;
break;
case 14:return 29;
break;
case 15:return 8;
break;
case 16:return 27;
break;
case 17:return 24;
break;
case 18:return 22;
break;
case 19:return 23;
break;
case 20:return 25;
break;
case 21:return 14;
break;
case 22:return 11;
break;
case 23:return 18;
break;
case 24:return 19;
break;
case 25:return 16;
break;
case 26:return 17;
break;
case 27:return 20
break;
case 28:return 21
break;
case 29:return 6;
break;
case 30:return 'NEWLINE';
break;
case 31:return 5;
break;
}
},
rules: [/^(?:style\b)/,/^(?:background\b)/,/^(?:red\b)/,/^(?:blue\b)/,/^(?:black\b)/,/^(?:#[a-f0-9]+)/,/^(?:[0-9]+)/,/^(?:border\b)/,/^(?:dotted\b)/,/^(?:dashed\b)/,/^(?:solid\b)/,/^(?:px\b)/,/^(?:pt\b)/,/^(?:dot\b)/,/^(?::)/,/^(?:;)/,/^(?:,)/,/^(?:--[x])/,/^(?:-->)/,/^(?:--[o])/,/^(?:---)/,/^(?:[a-zA-Z]+)/,/^(?:\|)/,/^(?:\()/,/^(?:\))/,/^(?:\[)/,/^(?:\])/,/^(?:\{)/,/^(?:\})/,/^(?:\s)/,/^(?:\n)/,/^(?:$)/],
conditions: {"INITIAL":{"rules":[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31],"inclusive":true}}
});
return lexer;
})();
parser.lexer = lexer;
function Parser () {
this.yy = {};
}
Parser.prototype = parser;parser.Parser = Parser;
return new Parser;
})();
if (typeof require !== 'undefined' && typeof exports !== 'undefined') {
exports.parser = parser;
exports.Parser = parser.Parser;
exports.parse = function () { return parser.parse.apply(parser, arguments); };
exports.main = function commonjsMain(args) {
if (!args[1]) {
console.log('Usage: '+args[0]+' FILE');
process.exit(1);
}
var source = require('fs').readFileSync(require('path').normalize(args[1]), "utf8");
return exports.parser.parse(source);
};
if (typeof module !== 'undefined' && require.main === module) {
exports.main(process.argv.slice(1));
}
}

34
src/test.js Normal file
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@@ -0,0 +1,34 @@
//console.log(p.parse('#fcfcfc'));
//console.log(p.parse('background: #fcfcfc'));
//console.log(p.parse('background: black'));
var scope={
addVertex:function(id,text,type,style){
console.log('Got node '+id+' '+type+' '+text+' styles: '+JSON.stringify(style));
},
addLink:function(start,end,type,linktext){
console.log('Got link from '+start+' to '+end+' type:'+type.type+' linktext:'+linktext);
}
};
var p = require('./mermaid.js');
p.parser.yy = scope;
console.log(p.parse('A-->B;'));
console.log(p.parse('A---B;'));
console.log(p.parse('A--xB;'));
console.log(p.parse('A--oB|apan;'));
console.log(p.parse('A--oB|apan hoppar;\nB-->C|apan hoppar vidare;'));
console.log(p.parse('A-->B|apan hoppar;\nB-->C;'));
console.log(p.parse('A-->B|apan hoppar;'));
console.log(p.parse('A[chimpansen hoppar]-->C;'));
console.log(p.parse('A(chimpansen hoppar)-->C;'));
//console.log(p.parse('A{chimpansen hoppar}-->C;'));
console.log(p.parse('style Q background:#fff;'));
console.log(p.parse('style R background:#fff,border:1px solid red;'));
console.log(p.parse('style S background:#aaa;\nstyle T background:#bbb,border:1px solid red;'));
//console.log(p.parse('A;'));