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fix #3391: Remove flowchart as fallback for diagram detection.

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This commit is contained in:
Sidharth Vinod
2022-10-06 19:14:25 +08:00
parent d59f878020
commit 1615c6d9f9
6 changed files with 53 additions and 25 deletions
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14
cypress/platform/sidv.html Normal file
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@@ -0,0 +1,14 @@
<html>
<body>
<pre class="mermaid">
none
hello world
</pre>
<script src="./mermaid.js"></script>
<script>
mermaid.initialize({
logLevel: 1,
});
</script>
</body>
</html>

3
package.json
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@@ -48,7 +48,8 @@
"e2e": "start-server-and-test dev http://localhost:9000/ cypress",
"ci": "vitest run",
"test": "pnpm lint && vitest run",
"test:watch": "vitest --coverage --watch",
"test:watch": "vitest --watch",
"test:coverage": "vitest --coverage",
"prepublishOnly": "pnpm build && pnpm test",
"prepare": "concurrently \"husky install\" \"pnpm build\"",
"pre-commit": "lint-staged"

47
packages/mermaid/src/Diagram.ts
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@@ -8,11 +8,18 @@ export class Diagram {
parser;
renderer;
db;
private detectTypeFailed = false;
// eslint-disable-next-line @typescript-eslint/ban-types
constructor(public txt: string, parseError?: Function) {
const cnf = configApi.getConfig();
this.txt = txt;
this.type = detectType(txt, cnf);
try {
this.type = detectType(txt, cnf);
} catch (e) {
this.handleError(e, parseError);
this.type = 'error';
this.detectTypeFailed = true;
}
const diagram = getDiagram(this.type);
log.debug('Type ' + this.type);
// Setup diagram
@@ -32,31 +39,39 @@ export class Diagram {
// eslint-disable-next-line @typescript-eslint/ban-types
parse(text: string, parseError?: Function): boolean {
if (this.detectTypeFailed) {
return false;
}
try {
text = text + '\n';
this.db.clear();
this.parser.parse(text);
return true;
} catch (error) {
// Is this the correct way to access mermiad's parseError()
// method ? (or global.mermaid.parseError()) ?
if (parseError) {
if (isDetailedError(error)) {
// handle case where error string and hash were
// wrapped in object like`const error = { str, hash };`
parseError(error.str, error.hash);
} else {
// assume it is just error string and pass it on
parseError(error);
}
} else {
// No mermaid.parseError() handler defined, so re-throw it
throw error;
}
this.handleError(error, parseError);
}
return false;
}
// eslint-disable-next-line @typescript-eslint/ban-types
handleError(error: unknown, parseError?: Function) {
// Is this the correct way to access mermiad's parseError()
// method ? (or global.mermaid.parseError()) ?
if (parseError) {
if (isDetailedError(error)) {
// handle case where error string and hash were
// wrapped in object like`const error = { str, hash };`
parseError(error.str, error.hash);
} else {
// assume it is just error string and pass it on
parseError(error);
}
} else {
// No mermaid.parseError() handler defined, so re-throw it
throw error;
}
}
getParser() {
return this.parser;
}

7
packages/mermaid/src/diagram-api/detectType.ts
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@@ -35,16 +35,13 @@ const detectors: Record<string, DetectorRecord> = {};
export const detectType = function (text: string, config?: MermaidConfig): string {
text = text.replace(directive, '').replace(anyComment, '\n');
// console.log(detectors);
for (const [key, detectorRecord] of Object.entries(detectors)) {
if (detectorRecord.detector(text, config)) {
return key;
}
}
// TODO: #3391
// throw new Error(`No diagram type detected for text: ${text}`);
return 'flowchart';
throw new Error(`No diagram type detected for text: ${text}`);
};
export const addDetector = (key: string, detector: DiagramDetector, path: string) => {

4
packages/mermaid/src/diagram-api/diagramAPI.spec.ts
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@@ -15,7 +15,9 @@ describe('DiagramAPI', () => {
it('should handle diagram registrations', () => {
expect(() => getDiagram('loki')).toThrow();
expect(() => detectType('loki diagram')).not.toThrow(); // TODO: #3391
expect(() => detectType('loki diagram')).toThrow(
'No diagram type detected for text: loki diagram'
);
const detector: DiagramDetector = (str: string) => {
return str.match('loki') !== null;
};

3
packages/mermaid/src/diagrams/flowchart/flowDb.js
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@@ -429,8 +429,7 @@ export const clear = function (ver = 'gen-1') {
vertices = {};
classes = {};
edges = [];
funs = [];
funs.push(setupToolTips);
funs = [setupToolTips];
subGraphs = [];
subGraphLookup = {};
subCount = 0;