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57 lines
1.9 KiB
57 lines
1.9 KiB
4 months ago
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import { finalizeSegment } from './finalize-segment';
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import { paramsCount } from './params-count';
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import { scanFlag } from './scan-flag';
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import { scanParam } from './scan-param';
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import { skipSpaces } from './skip-spaces';
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import { isPathCommand } from './is-path-command';
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import { isDigitStart } from './is-digit-start';
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import { isArcCommand } from './is-arc-command';
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/**
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* Scans every character in the path string to determine
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* where a segment starts and where it ends.
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*/
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export function scanSegment(path) {
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var max = path.max, pathValue = path.pathValue, index = path.index;
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var cmdCode = pathValue.charCodeAt(index);
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var reqParams = paramsCount[pathValue[index].toLowerCase()];
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path.segmentStart = index;
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if (!isPathCommand(cmdCode)) {
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path.err = "[path-util]: Invalid path value \"".concat(pathValue[index], "\" is not a path command");
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return;
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}
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path.index += 1;
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skipSpaces(path);
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path.data = [];
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if (!reqParams) {
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// Z
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finalizeSegment(path);
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return;
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}
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for (;;) {
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for (var i = reqParams; i > 0; i -= 1) {
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if (isArcCommand(cmdCode) && (i === 3 || i === 4))
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scanFlag(path);
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else
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scanParam(path);
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if (path.err.length) {
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return;
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}
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path.data.push(path.param);
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skipSpaces(path);
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// after ',' param is mandatory
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if (path.index < max && pathValue.charCodeAt(path.index) === 0x2c /* , */) {
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path.index += 1;
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skipSpaces(path);
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}
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}
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if (path.index >= path.max) {
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break;
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}
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// Stop on next segment
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if (!isDigitStart(pathValue.charCodeAt(path.index))) {
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break;
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}
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}
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finalizeSegment(path);
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}
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//# sourceMappingURL=scan-segment.js.map
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