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stateDiagram.jison
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stateDiagram.jison
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/** mermaid
* https://mermaidjs.github.io/
* (c) 2014-2021 Knut Sveidqvist
* MIT license.
*
* Based on js sequence diagrams jison grammr
* http://bramp.github.io/js-sequence-diagrams/
* (c) 2012-2013 Andrew Brampton (bramp.net)
* Simplified BSD license.
*/
%lex
%options case-insensitive
// Special states for recognizing aliases
%x ID
%x STATE
%x FORK_STATE
%x STATE_STRING
%x STATE_ID
%x ALIAS
%x SCALE
%x acc_title
%x acc_descr
%x acc_descr_multiline
%x NOTE
%x NOTE_ID
%x NOTE_TEXT
%x FLOATING_NOTE
%x FLOATING_NOTE_ID
%x struct
%x open_directive
%x type_directive
%x arg_directive
%x close_directive
// A special state for grabbing text up to the first comment/newline
%x LINE
%%
.*direction\s+TB[^\n]* return 'direction_tb';
.*direction\s+BT[^\n]* return 'direction_bt';
.*direction\s+RL[^\n]* return 'direction_rl';
.*direction\s+LR[^\n]* return 'direction_lr';
\%\%\{ { this.begin('open_directive'); return 'open_directive'; }
<open_directive>((?:(?!\}\%\%)[^:.])*) { this.begin('type_directive'); return 'type_directive'; }
<type_directive>":" { this.popState(); this.begin('arg_directive'); return ':'; }
<type_directive,arg_directive>\}\%\% { this.popState(); this.popState(); return 'close_directive'; }
<arg_directive>((?:(?!\}\%\%).|\n)*) return 'arg_directive';
\%\%(?!\{)[^\n]* /* skip comments */
[^\}]\%\%[^\n]* /* skip comments */{ /*console.log('Crap after close');*/ }
[\n]+ return 'NL';
[\s]+ /* skip all whitespace */
<ID,STATE,struct,LINE,open_directive,type_directive,arg_directive,close_directive>((?!\n)\s)+ /* skip same-line whitespace */
<INITIAL,ID,STATE,struct,LINE,open_directive,type_directive,arg_directive,close_directive>\#[^\n]* /* skip comments */
\%%[^\n]* /* skip comments */
"scale"\s+ { this.pushState('SCALE'); /* console.log('Got scale', yytext);*/ return 'scale'; }
<SCALE>\d+ return 'WIDTH';
<SCALE>\s+"width" {this.popState();}
accTitle\s*":"\s* { this.begin("acc_title");return 'acc_title'; }
<acc_title>(?!\n|;|#)*[^\n]* { this.popState(); return "acc_title_value"; }
accDescr\s*":"\s* { this.begin("acc_descr");return 'acc_descr'; }
<acc_descr>(?!\n|;|#)*[^\n]* { this.popState(); return "acc_descr_value"; }
accDescr\s*"{"\s* { this.begin("acc_descr_multiline");}
<acc_descr_multiline>[\}] { this.popState(); }
<acc_descr_multiline>[^\}]* return "acc_descr_multiline_value";
<INITIAL,struct>"state"\s+ { /*console.log('Starting STATE zxzx'+yy.getDirection());*/this.pushState('STATE'); }
<STATE>.*"<<fork>>" {this.popState();yytext=yytext.slice(0,-8).trim(); /*console.warn('Fork Fork: ',yytext);*/return 'FORK';}
<STATE>.*"<<join>>" {this.popState();yytext=yytext.slice(0,-8).trim();/*console.warn('Fork Join: ',yytext);*/return 'JOIN';}
<STATE>.*"<<choice>>" {this.popState();yytext=yytext.slice(0,-10).trim();/*console.warn('Fork Join: ',yytext);*/return 'CHOICE';}
<STATE>.*"[[fork]]" {this.popState();yytext=yytext.slice(0,-8).trim();/*console.warn('Fork Fork: ',yytext);*/return 'FORK';}
<STATE>.*"[[join]]" {this.popState();yytext=yytext.slice(0,-8).trim();/*console.warn('Fork Join: ',yytext);*/return 'JOIN';}
<STATE>.*"[[choice]]" {this.popState();yytext=yytext.slice(0,-10).trim();/*console.warn('Fork Join: ',yytext);*/return 'CHOICE';}
<struct>.*direction\s+TB[^\n]* { return 'direction_tb';}
<struct>.*direction\s+BT[^\n]* { return 'direction_bt';}
<struct>.*direction\s+RL[^\n]* { return 'direction_rl';}
<struct>.*direction\s+LR[^\n]* { return 'direction_lr';}
<STATE>["] { /*console.log('Starting STATE_STRING zxzx');*/this.begin("STATE_STRING");}
<STATE>\s*"as"\s+ {this.popState();this.pushState('STATE_ID');return "AS";}
<STATE_ID>[^\n\{]* {this.popState();/* console.log('STATE_ID', yytext);*/return "ID";}
<STATE_STRING>["] this.popState();
<STATE_STRING>[^"]* { /*console.log('Long description:', yytext);*/return "STATE_DESCR";}
<STATE>[^\n\s\{]+ {/*console.log('COMPOSIT_STATE', yytext);*/return 'COMPOSIT_STATE';}
<STATE>\n {this.popState();}
<INITIAL,STATE>\{ {this.popState();this.pushState('struct'); /*console.log('begin struct', yytext);*/return 'STRUCT_START';}
<struct>\} { /*console.log('Ending struct');*/ this.popState(); return 'STRUCT_STOP';}}
<struct>[\n] /* nothing */
<INITIAL,struct>"note"\s+ { this.begin('NOTE'); return 'note'; }
<NOTE>"left of" { this.popState();this.pushState('NOTE_ID');return 'left_of';}
<NOTE>"right of" { this.popState();this.pushState('NOTE_ID');return 'right_of';}
<NOTE>\" { this.popState();this.pushState('FLOATING_NOTE');}
<FLOATING_NOTE>\s*"as"\s* {this.popState();this.pushState('FLOATING_NOTE_ID');return "AS";}
<FLOATING_NOTE>["] /**/
<FLOATING_NOTE>[^"]* { /*console.log('Floating note text: ', yytext);*/return "NOTE_TEXT";}
<FLOATING_NOTE_ID>[^\n]* {this.popState();/*console.log('Floating note ID', yytext);*/return "ID";}
<NOTE_ID>\s*[^:\n\s\-]+ { this.popState();this.pushState('NOTE_TEXT');/*console.log('Got ID for note', yytext);*/return 'ID';}
<NOTE_TEXT>\s*":"[^:\n;]+ { this.popState();/*console.log('Got NOTE_TEXT for note',yytext);*/yytext = yytext.substr(2).trim();return 'NOTE_TEXT';}
<NOTE_TEXT>[\s\S]*?"end note" { this.popState();/*console.log('Got NOTE_TEXT for note',yytext);*/yytext = yytext.slice(0,-8).trim();return 'NOTE_TEXT';}
"stateDiagram"\s+ { /*console.log('Got state diagram', yytext,'#');*/return 'SD'; }
"stateDiagram-v2"\s+ { /*console.log('Got state diagram', yytext,'#');*/return 'SD'; }
"hide empty description" { /*console.log('HIDE_EMPTY', yytext,'#');*/return 'HIDE_EMPTY'; }
<INITIAL,struct>"[*]" { /*console.log('EDGE_STATE=',yytext);*/ return 'EDGE_STATE';}
<INITIAL,struct>[^:\n\s\-\{]+ { /*console.log('=>ID=',yytext);*/ return 'ID';}
// <INITIAL,struct>\s*":"[^\+\->:\n;]+ { yytext = yytext.trim(); /*console.log('Descr = ', yytext);*/ return 'DESCR'; }
<INITIAL,struct>\s*":"[^:\n;]+ { yytext = yytext.trim(); /*console.log('Descr = ', yytext);*/ return 'DESCR'; }
<INITIAL,struct>"-->" return '-->';
<struct>"--" return 'CONCURRENT';
<<EOF>> return 'NL';
. return 'INVALID';
/lex
%left '^'
%start start
%% /* language grammar */
start
: SPACE start
| NL start
| directive start
| SD document { /*console.warn('Root document', $2);*/ yy.setRootDoc($2);return $2; }
;
document
: /* empty */ { $$ = [] }
| document line {
if($2!='nl'){
$1.push($2);$$ = $1
}
// console.warn('Got document',$1, $2);
}
;
line
: SPACE statement { $$ = $2 }
| statement { $$ = $1 }
| NL { $$='nl';}
;
statement
: idStatement { /*console.warn('got id and descr', $1);*/$$={ stmt: 'state', id: $1, type: 'default', description: ''};}
| idStatement DESCR { /*console.warn('got id and descr', $1, $2.trim());*/$$={ stmt: 'state', id: $1, type: 'default', description: yy.trimColon($2)};}
| idStatement '-->' idStatement
{
/*console.warn('got id', $1);yy.addRelation($1, $3);*/
$$={ stmt: 'relation', state1: { stmt: 'state', id: $1, type: 'default', description: '' }, state2:{ stmt: 'state', id: $3 ,type: 'default', description: ''}};
}
| idStatement '-->' idStatement DESCR
{
/*yy.addRelation($1, $3, $4.substr(1).trim());*/
$$={ stmt: 'relation', state1: { stmt: 'state', id: $1, type: 'default', description: '' }, state2:{ stmt: 'state', id: $3 ,type: 'default', description: ''}, description: $4.substr(1).trim()};
}
| HIDE_EMPTY
| scale WIDTH
| COMPOSIT_STATE
| COMPOSIT_STATE STRUCT_START document STRUCT_STOP
{
/* console.warn('Adding document for state without id ', $1);*/
$$={ stmt: 'state', id: $1, type: 'default', description: '', doc: $3 }
}
| STATE_DESCR AS ID {
var id=$3;
var description = $1.trim();
if($3.match(':')){
var parts = $3.split(':');
id=parts[0];
description = [description, parts[1]];
}
$$={stmt: 'state', id: id, type: 'default', description: description};
}
| STATE_DESCR AS ID STRUCT_START document STRUCT_STOP
{
// console.warn('Adding document for state with id zxzx', $3, $4, yy.getDirection()); yy.addDocument($3);
$$={ stmt: 'state', id: $3, type: 'default', description: $1, doc: $5 }
}
| FORK {
$$={ stmt: 'state', id: $1, type: 'fork' }
}
| JOIN {
$$={ stmt: 'state', id: $1, type: 'join' }
}
| CHOICE {
$$={ stmt: 'state', id: $1, type: 'choice' }
}
| CONCURRENT {
$$={ stmt: 'state', id: yy.getDividerId(), type: 'divider' }
}
| note notePosition ID NOTE_TEXT
{
/* console.warn('got NOTE, position: ', $2.trim(), 'id = ', $3.trim(), 'note: ', $4);*/
$$={ stmt: 'state', id: $3.trim(), note:{position: $2.trim(), text: $4.trim()}};
}
| note NOTE_TEXT AS ID
| directive
| direction
| acc_title acc_title_value { $$=$2.trim();yy.setAccTitle($$); }
| acc_descr acc_descr_value { $$=$2.trim();yy.setAccDescription($$); }
| acc_descr_multiline_value { $$=$1.trim();yy.setAccDescription($$); } ;
directive
: openDirective typeDirective closeDirective
| openDirective typeDirective ':' argDirective closeDirective
;
direction
: direction_tb
{ yy.setDirection('TB');$$={stmt:'dir', value:'TB'};}
| direction_bt
{ yy.setDirection('BT');$$={stmt:'dir', value:'BT'};}
| direction_rl
{ yy.setDirection('RL'); $$={stmt:'dir', value:'RL'};}
| direction_lr
{ yy.setDirection('LR');$$={stmt:'dir', value:'LR'};}
;
eol
: NL
| ';'
;
idStatement
: ID {$$=$1;}
| EDGE_STATE {$$=$1;}
;
notePosition
: left_of
| right_of
;
openDirective
: open_directive { yy.parseDirective('%%{', 'open_directive'); }
;
typeDirective
: type_directive { yy.parseDirective($1, 'type_directive'); }
;
argDirective
: arg_directive { $1 = $1.trim().replace(/'/g, '"'); yy.parseDirective($1, 'arg_directive'); }
;
closeDirective
: close_directive { yy.parseDirective('}%%', 'close_directive', 'state'); }
;
%%