chrono-node
Version:
A natural language date parser in Javascript
58 lines • 2.36 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
const types_1 = require("../../../types");
const AbstractTimeExpressionParser_1 = require("../../../common/parsers/AbstractTimeExpressionParser");
class ENTimeExpressionParser extends AbstractTimeExpressionParser_1.AbstractTimeExpressionParser {
constructor(strictMode) {
super(strictMode);
}
followingPhase() {
return "\\s*(?:\\-|\\–|\\~|\\〜|to|until|through|till|\\?)\\s*";
}
primaryPrefix() {
return "(?:(?:at|from)\\s*)??";
}
primarySuffix() {
return "(?:\\s*(?:o\\W*clock|at\\s*night|in\\s*the\\s*(?:morning|afternoon)))?(?!/)(?=\\W|$)";
}
extractPrimaryTimeComponents(context, match) {
const components = super.extractPrimaryTimeComponents(context, match);
if (!components) {
return components;
}
if (match[0].endsWith("night")) {
const hour = components.get("hour");
if (hour >= 6 && hour < 12) {
components.assign("hour", components.get("hour") + 12);
components.assign("meridiem", types_1.Meridiem.PM);
}
else if (hour < 6) {
components.assign("meridiem", types_1.Meridiem.AM);
}
}
if (match[0].endsWith("afternoon")) {
components.assign("meridiem", types_1.Meridiem.PM);
const hour = components.get("hour");
if (hour >= 0 && hour <= 6) {
components.assign("hour", components.get("hour") + 12);
}
}
if (match[0].endsWith("morning")) {
components.assign("meridiem", types_1.Meridiem.AM);
const hour = components.get("hour");
if (hour < 12) {
components.assign("hour", components.get("hour"));
}
}
return components.addTag("parser/ENTimeExpressionParser");
}
extractFollowingTimeComponents(context, match, result) {
const followingComponents = super.extractFollowingTimeComponents(context, match, result);
if (followingComponents) {
followingComponents.addTag("parser/ENTimeExpressionParser");
}
return followingComponents;
}
}
exports.default = ENTimeExpressionParser;
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