mirror of
https://github.com/mermaid-js/mermaid.git
synced 2025-09-14 21:09:50 +02:00
Fixed flowchart parsing (broken tests - grammar changes were not 100% correct)
This commit is contained in:
chris moran
@@ -6,8 +6,6 @@
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/* lexical grammar */
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%lex
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%options case-insensitive
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%x string
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%x dir
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%x vertex
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@@ -20,9 +18,9 @@
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\%\%\{ { this.begin('open_directive'); return 'open_directive'; }
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<open_directive>((?:(?!\}\%\%)[^:.])*) { this.begin('type_directive'); return 'type_directive'; }
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<type_directive>":" { this.popState(); this.begin('arg_directive'); return ':'; }
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<type_directive,arg_directive>\}\%\%[^\n]* { this.popState(); this.popState(); return 'close_directive'; }
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<type_directive,arg_directive>\}\%\% { this.popState(); this.popState(); return 'close_directive'; }
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<arg_directive>((?:(?!\}\%\%).|\n)*) return 'arg_directive';
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\%%(?!\{)[^\n]* /* skip comments */
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\%\%(?!\{)[^\n]* /* skip comments */
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[^\}]\%\%[^\n]* /* skip comments */
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["] this.begin("string");
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<string>["] this.popState();
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@@ -38,7 +36,7 @@
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"flowchart" {if(yy.lex.firstGraph()){this.begin("dir");} return 'GRAPH';}
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"subgraph" return 'subgraph';
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"end"\b\s* return 'end';
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<dir>[^\n\s]* { this.popState(); }
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<dir>(\r?\n)*\s*\n { this.popState(); return 'NODIR'; }
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<dir>\s*"LR" { this.popState(); return 'DIR'; }
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<dir>\s*"RL" { this.popState(); return 'DIR'; }
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<dir>\s*"TB" { this.popState(); return 'DIR'; }
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@@ -203,13 +201,38 @@
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%left '^'
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%start mermaidDoc
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%start start
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%% /* language grammar */
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start
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: mermaidDoc
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| directive start
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;
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directive
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: openDirective typeDirective closeDirective separator
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| openDirective typeDirective ':' argDirective closeDirective separator
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;
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openDirective
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: open_directive { yy.parseDirective('%%{', 'open_directive'); }
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;
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typeDirective
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: type_directive { yy.parseDirective($1, 'type_directive'); }
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;
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argDirective
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: arg_directive { $1 = $1.trim().replace(/'/g, '"'); yy.parseDirective($1, 'arg_directive'); }
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;
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closeDirective
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: close_directive { yy.parseDirective('}%%', 'close_directive', 'flowchart'); }
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;
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mermaidDoc
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: graphConfig document
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| directive mermaidDoc
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;
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document
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@@ -224,25 +247,21 @@ document
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;
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line
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: statement {$$=$1;}
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: statement
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{$$=$1;}
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| SEMI
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| NEWLINE
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| SPACE
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| EOF
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;
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directive
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: openDirective typeDirective closeDirective separator
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| openDirective typeDirective ':' argDirective closeDirective separator
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;
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graphConfig
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: SPACE graphConfig
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| NEWLINE graphConfig
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| GRAPH FirstStmtSeperator
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{ console.log('GRAPH FirstStmtSeperator');yy.setDirection('TB');$$ = 'TB';}
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| GRAPH NODIR
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{ yy.setDirection('TB');$$ = 'TB';}
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| GRAPH DIR FirstStmtSeperator
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{ console.log('GRAPH DIR FirstStmtSeperator');yy.setDirection($2);$$ = $2;}
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{ yy.setDirection($2);$$ = $2;}
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// | GRAPH SPACE TAGEND FirstStmtSeperator
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// { yy.setDirection("LR");$$ = $3;}
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// | GRAPH SPACE TAGSTART FirstStmtSeperator
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@@ -297,7 +316,6 @@ statement
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// {$$=yy.addSubGraph($3,$5,$3);}
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| subgraph separator document end
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{$$=yy.addSubGraph(undefined,$3,undefined);}
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| directive
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;
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separator: NEWLINE | SEMI | EOF ;
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@@ -370,7 +388,7 @@ vertex: idString SQS text SQE
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link: linkStatement arrowText
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{$1.text = $2;$$ = $1;}
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| linkStatement STR SPACE
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| linkStatement TESTSTR SPACE
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{$1.text = $2;$$ = $1;}
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| linkStatement arrowText SPACE
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{$1.text = $2;$$ = $1;}
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@@ -389,16 +407,24 @@ arrowText:
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{$$ = $2;}
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;
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text: textToken {$$=$1;}
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| text textToken {$$=$1+''+$2;}
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text: textToken
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{$$=$1;}
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| text textToken
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{$$=$1+''+$2;}
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| STR
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{$$=$1;}
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;
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keywords
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: STYLE | LINKSTYLE | CLASSDEF | CLASS | CLICK | GRAPH | DIR | subgraph | end | DOWN | UP;
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textNoTags: textNoTagsToken {$$=$1;}
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| textNoTags textNoTagsToken {$$=$1+''+$2;}
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textNoTags: textNoTagsToken
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{$$=$1;}
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| textNoTags textNoTagsToken
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{$$=$1+''+$2;}
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;
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@@ -440,42 +466,54 @@ linkStyleStatement
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{$$ = $1;yy.updateLinkInterpolate($3,$7);}
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;
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numList
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: NUM {$$ = [$1]}
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| numList COMMA NUM {$1.push($3);$$ = $1;}
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numList: NUM
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{$$ = [$1]}
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| numList COMMA NUM
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{$1.push($3);$$ = $1;}
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;
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stylesOpt: style {$$ = [$1]}
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| stylesOpt COMMA style {$1.push($3);$$ = $1;}
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stylesOpt: style
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{$$ = [$1]}
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| stylesOpt COMMA style
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{$1.push($3);$$ = $1;}
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;
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style: styleComponent
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| style styleComponent {$$ = $1 + $2;}
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|style styleComponent
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{$$ = $1 + $2;}
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;
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styleComponent: ALPHA | COLON | MINUS | NUM | UNIT | SPACE | HEX | BRKT | DOT | STYLE | PCT ;
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/* Token lists */
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textToken : textNoTagsToken | STR {$$=$1;} | TAGSTART | TAGEND | START_LINK | PCT | DEFAULT;
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textToken : textNoTagsToken | TAGSTART | TAGEND | START_LINK | PCT | DEFAULT;
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textNoTagsToken: alphaNumToken | SPACE | MINUS | keywords ;
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idString
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: idStringToken {$$=$1}
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| idString idStringToken {$$=$1+''+$2}
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:idStringToken
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{$$=$1}
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| idString idStringToken
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{$$=$1+''+$2}
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;
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alphaNum
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: alphaNumStatement {$$=$1;}
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| alphaNum alphaNumStatement {$$=$1+''+$2;}
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: alphaNumStatement
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{$$=$1;}
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| alphaNum alphaNumStatement
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{$$=$1+''+$2;}
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;
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alphaNumStatement
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: DIR {$$=$1;}
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| alphaNumToken {$$=$1;}
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| DOWN {$$='v';}
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| MINUS {$$='-';}
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: DIR
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{$$=$1;}
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| alphaNumToken
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{$$=$1;}
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| DOWN
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{$$='v';}
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| MINUS
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{$$='-';}
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;
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alphaNumToken : PUNCTUATION | AMP | UNICODE_TEXT | NUM| ALPHA | COLON | COMMA | PLUS | EQUALS | MULT | DOT | BRKT| UNDERSCORE ;
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@@ -483,21 +521,4 @@ alphaNumToken : PUNCTUATION | AMP | UNICODE_TEXT | NUM| ALPHA | COLON | COMMA |
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idStringToken : ALPHA|UNDERSCORE |UNICODE_TEXT | NUM| COLON | COMMA | PLUS | MINUS | DOWN |EQUALS | MULT | BRKT | DOT | PUNCTUATION | AMP;
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graphCodeTokens: STADIUMSTART | STADIUMEND | SUBROUTINESTART | SUBROUTINEEND | CYLINDERSTART | CYLINDEREND | TRAPSTART | TRAPEND | INVTRAPSTART | INVTRAPEND | PIPE | PS | PE | SQS | SQE | DIAMOND_START | DIAMOND_STOP | TAGSTART | TAGEND | ARROW_CROSS | ARROW_POINT | ARROW_CIRCLE | ARROW_OPEN | QUOTE | SEMI;
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openDirective
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: open_directive { yy.parseDirective('%%{', 'open_directive'); }
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;
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typeDirective
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: type_directive { yy.parseDirective($1, 'type_directive'); }
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;
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argDirective
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: arg_directive { $1 = $1.trim().replace(/'/g, '"'); yy.parseDirective($1, 'arg_directive'); }
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;
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closeDirective
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: close_directive { yy.parseDirective('}%%', 'close_directive', 'flowchart'); }
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;
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%%
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