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feat(lineOutputParser): return undefined on invalid tags

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ItzCrazyKns
2025-10-02 17:17:31 +05:30
parent 5cc11ac0bf
commit a19cf00873
1 changed files with 3 additions and 3 deletions
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6
src/lib/outputParsers/lineOutputParser.ts
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@@ -4,7 +4,7 @@ interface LineOutputParserArgs {
key?: string;
}
class LineOutputParser extends BaseOutputParser<string> {
class LineOutputParser extends BaseOutputParser<string | undefined> {
private key = 'questions';
constructor(args?: LineOutputParserArgs) {
@@ -18,7 +18,7 @@ class LineOutputParser extends BaseOutputParser<string> {
lc_namespace = ['langchain', 'output_parsers', 'line_output_parser'];
async parse(text: string): Promise<string> {
async parse(text: string): Promise<string | undefined> {
text = text.trim() || '';
const regex = /^(\s*(-|\*|\d+\.\s|\d+\)\s|\u2022)\s*)+/;
@@ -26,7 +26,7 @@ class LineOutputParser extends BaseOutputParser<string> {
const endKeyIndex = text.indexOf(`</${this.key}>`);
if (startKeyIndex === -1 || endKeyIndex === -1) {
return '';
return undefined;
}
const questionsStartIndex =