# core/parsers/tool.yamllint.parser.ts

> 34 lines of code and 13 definitions.

Tree: GovLab Quality
Language: typescript
Layer: processing
Canonical: https://banes-lab.com/anatomy/quality#file-quality-core-parsers-tool-yamllint-parser-ts
Source text: https://banes-lab.com/source/quality/core/parsers/tool.yamllint.parser.ts.txt

Listed in [core/parsers](https://banes-lab.com/api/source/quality/core/parsers.md), after [core/parsers/tool.ts-prune.parser.ts](https://banes-lab.com/source/quality/core/parsers/tool.ts-prune.parser.ts.md) and before [core/parsers/word.parser.ts](https://banes-lab.com/source/quality/core/parsers/word.parser.ts.md).

## Definitions

- `parseLine` (lexical_declaration, line 27)
- `parseYamllintOutput` (lexical_declaration, line 37, exported)
- `locationOf` (lexical_declaration, line 16)
- `TOOL` (lexical_declaration, line 6)
- `MARKER` (lexical_declaration, line 7)
- `extractRule` (lexical_declaration, line 9)
- `open` (lexical_declaration, line 10)
- `lastColon` (lexical_declaration, line 17)
- `beforeCol` (lexical_declaration, line 18)
- `lineColon` (lexical_declaration, line 19)
- `marker` (lexical_declaration, line 28)
- `rest` (lexical_declaration, line 32)
- `{ message, ruleId }` (lexical_declaration, line 33)

## Contained in

- [core/parsers](https://banes-lab.com/anatomy/quality/folder-quality-core-parsers.md)

## Uses

- [core/factories/finding.factory.ts](https://banes-lab.com/source/quality/core/factories/finding.factory.ts.md)
- [core/parsers/location.parser.ts](https://banes-lab.com/source/quality/core/parsers/location.parser.ts.md)

## Used by

- [core/adapters/tool.yamllint.adapter.ts](https://banes-lab.com/source/quality/core/adapters/tool.yamllint.adapter.ts.md)

## Linked from

- [core/adapters](https://banes-lab.com/anatomy/quality/folder-quality-core-adapters.md)
- [core/factories](https://banes-lab.com/anatomy/quality/folder-quality-core-factories.md)
- [core/parsers](https://banes-lab.com/anatomy/quality/folder-quality-core-parsers.md)

## Source

```typescript
import type { Finding, SourceLocation } from "#types/finding.types";
import { POSITION } from "#configuration/constants/tool.constants";
import { parseLines } from "#core/parsers/location.parser";
import { toolFinding } from "#core/factories/finding.factory";

const TOOL = "yamllint";
const MARKER = ": [";

const extractRule = function extractRule(body: string): { message: string; ruleId: string } {
    const open = body.endsWith(")") ? body.lastIndexOf("(") : -1;
    return open === -1
        ? { message: body, ruleId: TOOL }
        : { message: body.slice(0, open).trim(), ruleId: body.slice(open + 1, -1) };
};

const locationOf = function locationOf(location: string): SourceLocation {
    const lastColon = location.lastIndexOf(":");
    const beforeCol = location.slice(0, lastColon);
    const lineColon = beforeCol.lastIndexOf(":");
    return {
        column: Number(location.slice(lastColon + 1)) || POSITION,
        file: beforeCol.slice(0, lineColon),
        line: Number(beforeCol.slice(lineColon + 1)) || POSITION,
    };
};

const parseLine = function parseLine(line: string, ecosystem: string): Finding | null {
    const marker = line.indexOf(MARKER);
    if (marker === -1) {
        return null;
    }
    const rest = line.slice(marker + MARKER.length);
    const { message, ruleId } = extractRule(rest.slice(rest.indexOf("]") + 1).trim());
    return toolFinding({ ...locationOf(line.slice(0, marker)), ecosystem, message, ruleId, tool: TOOL });
};

export const parseYamllintOutput = function parseYamllintOutput(output: string, ecosystem: string): Finding[] {
    return parseLines(output, (line) => parseLine(line, ecosystem));
};
```