mirror of
https://github.com/deployphp/action.git
synced 2024-11-23 20:39:02 +00:00
99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
export { createScalarToken, resolveAsScalar, setScalarValue } from './cst-scalar.js';
|
|
export { stringify } from './cst-stringify.js';
|
|
export { visit } from './cst-visit.js';
|
|
|
|
/** The byte order mark */
|
|
const BOM = '\u{FEFF}';
|
|
/** Start of doc-mode */
|
|
const DOCUMENT = '\x02'; // C0: Start of Text
|
|
/** Unexpected end of flow-mode */
|
|
const FLOW_END = '\x18'; // C0: Cancel
|
|
/** Next token is a scalar value */
|
|
const SCALAR = '\x1f'; // C0: Unit Separator
|
|
/** @returns `true` if `token` is a flow or block collection */
|
|
const isCollection = (token) => !!token && 'items' in token;
|
|
/** @returns `true` if `token` is a flow or block scalar; not an alias */
|
|
const isScalar = (token) => !!token &&
|
|
(token.type === 'scalar' ||
|
|
token.type === 'single-quoted-scalar' ||
|
|
token.type === 'double-quoted-scalar' ||
|
|
token.type === 'block-scalar');
|
|
/* istanbul ignore next */
|
|
/** Get a printable representation of a lexer token */
|
|
function prettyToken(token) {
|
|
switch (token) {
|
|
case BOM:
|
|
return '<BOM>';
|
|
case DOCUMENT:
|
|
return '<DOC>';
|
|
case FLOW_END:
|
|
return '<FLOW_END>';
|
|
case SCALAR:
|
|
return '<SCALAR>';
|
|
default:
|
|
return JSON.stringify(token);
|
|
}
|
|
}
|
|
/** Identify the type of a lexer token. May return `null` for unknown tokens. */
|
|
function tokenType(source) {
|
|
switch (source) {
|
|
case BOM:
|
|
return 'byte-order-mark';
|
|
case DOCUMENT:
|
|
return 'doc-mode';
|
|
case FLOW_END:
|
|
return 'flow-error-end';
|
|
case SCALAR:
|
|
return 'scalar';
|
|
case '---':
|
|
return 'doc-start';
|
|
case '...':
|
|
return 'doc-end';
|
|
case '':
|
|
case '\n':
|
|
case '\r\n':
|
|
return 'newline';
|
|
case '-':
|
|
return 'seq-item-ind';
|
|
case '?':
|
|
return 'explicit-key-ind';
|
|
case ':':
|
|
return 'map-value-ind';
|
|
case '{':
|
|
return 'flow-map-start';
|
|
case '}':
|
|
return 'flow-map-end';
|
|
case '[':
|
|
return 'flow-seq-start';
|
|
case ']':
|
|
return 'flow-seq-end';
|
|
case ',':
|
|
return 'comma';
|
|
}
|
|
switch (source[0]) {
|
|
case ' ':
|
|
case '\t':
|
|
return 'space';
|
|
case '#':
|
|
return 'comment';
|
|
case '%':
|
|
return 'directive-line';
|
|
case '*':
|
|
return 'alias';
|
|
case '&':
|
|
return 'anchor';
|
|
case '!':
|
|
return 'tag';
|
|
case "'":
|
|
return 'single-quoted-scalar';
|
|
case '"':
|
|
return 'double-quoted-scalar';
|
|
case '|':
|
|
case '>':
|
|
return 'block-scalar-header';
|
|
}
|
|
return null;
|
|
}
|
|
|
|
export { BOM, DOCUMENT, FLOW_END, SCALAR, isCollection, isScalar, prettyToken, tokenType };
|