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81 lines
3.1 KiB
81 lines
3.1 KiB
2 years ago
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import { SCALAR, isScalar } from '../nodes/Node.js';
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import { Scalar } from '../nodes/Scalar.js';
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import { resolveBlockScalar } from './resolve-block-scalar.js';
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import { resolveFlowScalar } from './resolve-flow-scalar.js';
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function composeScalar(ctx, token, tagToken, onError) {
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const { value, type, comment, range } = token.type === 'block-scalar'
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? resolveBlockScalar(token, ctx.options.strict, onError)
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: resolveFlowScalar(token, ctx.options.strict, onError);
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const tagName = tagToken
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? ctx.directives.tagName(tagToken.source, msg => onError(tagToken, 'TAG_RESOLVE_FAILED', msg))
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: null;
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const tag = tagToken && tagName
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? findScalarTagByName(ctx.schema, value, tagName, tagToken, onError)
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: token.type === 'scalar'
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? findScalarTagByTest(ctx, value, token, onError)
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: ctx.schema[SCALAR];
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let scalar;
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try {
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const res = tag.resolve(value, msg => onError(tagToken ?? token, 'TAG_RESOLVE_FAILED', msg), ctx.options);
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scalar = isScalar(res) ? res : new Scalar(res);
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}
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catch (error) {
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const msg = error instanceof Error ? error.message : String(error);
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onError(tagToken ?? token, 'TAG_RESOLVE_FAILED', msg);
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scalar = new Scalar(value);
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}
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scalar.range = range;
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scalar.source = value;
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if (type)
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scalar.type = type;
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if (tagName)
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scalar.tag = tagName;
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if (tag.format)
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scalar.format = tag.format;
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if (comment)
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scalar.comment = comment;
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return scalar;
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}
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function findScalarTagByName(schema, value, tagName, tagToken, onError) {
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if (tagName === '!')
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return schema[SCALAR]; // non-specific tag
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const matchWithTest = [];
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for (const tag of schema.tags) {
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if (!tag.collection && tag.tag === tagName) {
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if (tag.default && tag.test)
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matchWithTest.push(tag);
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else
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return tag;
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}
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}
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for (const tag of matchWithTest)
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if (tag.test?.test(value))
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return tag;
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const kt = schema.knownTags[tagName];
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if (kt && !kt.collection) {
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// Ensure that the known tag is available for stringifying,
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// but does not get used by default.
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schema.tags.push(Object.assign({}, kt, { default: false, test: undefined }));
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return kt;
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}
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onError(tagToken, 'TAG_RESOLVE_FAILED', `Unresolved tag: ${tagName}`, tagName !== 'tag:yaml.org,2002:str');
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return schema[SCALAR];
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}
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function findScalarTagByTest({ directives, schema }, value, token, onError) {
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const tag = schema.tags.find(tag => tag.default && tag.test?.test(value)) || schema[SCALAR];
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if (schema.compat) {
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const compat = schema.compat.find(tag => tag.default && tag.test?.test(value)) ??
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schema[SCALAR];
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if (tag.tag !== compat.tag) {
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const ts = directives.tagString(tag.tag);
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const cs = directives.tagString(compat.tag);
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const msg = `Value may be parsed as either ${ts} or ${cs}`;
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onError(token, 'TAG_RESOLVE_FAILED', msg, true);
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}
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}
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return tag;
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}
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export { composeScalar };
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