decode_character_references() — svelte Function Reference

Architecture documentation for the decode_character_references() function in html.js from the svelte codebase.

Function javascript Compiler Transformer calls 1 called by 3

Entity Profile

Compiler→ Transformer→ decode_character_references() — svelte Function Reference

Dependency Diagram

graph TD
  83712aa1_c83d_1cd5_c47d_1cdb04dd210c["decode_character_references()"]
  06660fad_daa2_c824_01c8_ebafc63758a1["html.js"]
  83712aa1_c83d_1cd5_c47d_1cdb04dd210c -->|defined in| 06660fad_daa2_c824_01c8_ebafc63758a1
  dc598a1a_5625_fb76_e8ae_097c399278e6["read_static_attribute()"]
  dc598a1a_5625_fb76_e8ae_097c399278e6 -->|calls| 83712aa1_c83d_1cd5_c47d_1cdb04dd210c
  babf57bd_0606_e8ec_fde4_75ed47bb1407["read_sequence()"]
  babf57bd_0606_e8ec_fde4_75ed47bb1407 -->|calls| 83712aa1_c83d_1cd5_c47d_1cdb04dd210c
  336f9996_ecb1_725a_1c20_d9de54fd73b9["text()"]
  336f9996_ecb1_725a_1c20_d9de54fd73b9 -->|calls| 83712aa1_c83d_1cd5_c47d_1cdb04dd210c
  6109b795_2fdc_5107_388c_1e07cbee6bac["validate_code()"]
  83712aa1_c83d_1cd5_c47d_1cdb04dd210c -->|calls| 6109b795_2fdc_5107_388c_1e07cbee6bac
  style 83712aa1_c83d_1cd5_c47d_1cdb04dd210c fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/src/compiler/phases/1-parse/utils/html.js lines 40–66

export function decode_character_references(html, is_attribute_value) {
	const entity_pattern = is_attribute_value ? entity_pattern_attr_value : entity_pattern_content;
	return html.replace(
		entity_pattern,
		/**
		 * @param {any} match
		 * @param {keyof typeof entities} entity
		 */ (match, entity) => {
			let code;

			// Handle named entities
			if (entity[0] !== '#') {
				code = entities[entity];
			} else if (entity[1] === 'x') {
				code = parseInt(entity.substring(2), 16);
			} else {
				code = parseInt(entity.substring(1), 10);
			}

			if (!code) {
				return match;
			}

			return String.fromCodePoint(validate_code(code));
		}
	);
}