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refactor: simplify MEDIA parsing, drop invalid lines, keep valid tokens

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This commit is contained in:
Peter Steinberger
2025-11-25 06:17:48 +01:00
parent 9f952f3ab8
commit d925d9849c
1 changed files with 33 additions and 48 deletions
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81
src/media/parse.ts
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@@ -1,12 +1,21 @@
// Shared helpers for parsing MEDIA tokens from command/stdout text.
export const MEDIA_LINE_RE = /\bMEDIA:/i;
// Allow optional wrapping backticks and punctuation after the token; capture the core token.
export const MEDIA_TOKEN_RE = /\bMEDIA:\s*`?([^\s`]+)`?/i;
export function normalizeMediaSource(src: string) {
if (src.startsWith("file://")) return src.replace("file://", "");
return src;
return src.startsWith("file://") ? src.replace("file://", "") : src;
}
function cleanCandidate(raw: string) {
return raw.replace(/^[`"'[{(]+/, "").replace(/[`"'\\})\],]+$/, "");
}
function isValidMedia(candidate: string) {
if (!candidate) return false;
if (candidate.length > 1024) return false;
if (/\s/.test(candidate)) return false;
return /^https?:\/\//i.test(candidate) || candidate.startsWith("/") || candidate.startsWith("./");
}
export function splitMediaFromOutput(raw: string): {
@@ -14,52 +23,28 @@ export function splitMediaFromOutput(raw: string): {
mediaUrl?: string;
} {
const trimmedRaw = raw.trim();
let text = trimmedRaw;
let mediaUrl: string | undefined;
const match = MEDIA_TOKEN_RE.exec(trimmedRaw);
if (!match?.[1]) return { text: trimmedRaw };
const globalMatch = trimmedRaw.match(MEDIA_TOKEN_RE);
let mediaLine = trimmedRaw.split("\n").find((line) => MEDIA_LINE_RE.test(line));
let mediaMatch = mediaLine?.match(MEDIA_TOKEN_RE) ?? globalMatch;
if (!mediaMatch) {
return { text: trimmedRaw };
}
if (!mediaLine && mediaMatch) {
mediaLine = mediaMatch[0];
}
const candidate = normalizeMediaSource(cleanCandidate(match[1]));
const mediaUrl = isValidMedia(candidate) ? candidate : undefined;
let isValidMedia = false;
if (mediaMatch?.[1]) {
const cleaned = mediaMatch[1]
.replace(/^[`"'[{(]+/, "")
.replace(/[`"'\\})\],]+$/, "");
const candidate = normalizeMediaSource(cleaned);
const looksLikeUrl = /^https?:\/\//i.test(candidate);
const looksLikePath = candidate.startsWith("/") || candidate.startsWith("./");
const hasWhitespace = /\s/.test(candidate);
isValidMedia =
!hasWhitespace && candidate.length <= 1024 && (looksLikeUrl || looksLikePath);
if (isValidMedia) {
mediaUrl = candidate;
}
}
const cleanedText =
mediaUrl
? trimmedRaw
.replace(match[0], "")
.replace(/[ \t]+\n/g, "\n")
.replace(/[ \t]{2,}/g, " ")
.replace(/\n{2,}/g, "\n")
.trim()
: trimmedRaw
.split("\n")
.filter((line) => !MEDIA_TOKEN_RE.test(line))
.join("\n")
.replace(/[ \t]+\n/g, "\n")
.replace(/[ \t]{2,}/g, " ")
.replace(/\n{2,}/g, "\n")
.trim();
if (isValidMedia && mediaMatch?.[0]) {
text = trimmedRaw
.replace(mediaMatch[0], "")
.replace(/[ \t]{2,}/g, " ")
.replace(/[ \t]+\n/g, "\n")
.replace(/\n{2,}/g, "\n")
.trim();
} else {
text = trimmedRaw
.split("\n")
.filter((line) => line !== mediaLine)
.join("\n")
.replace(/[ \t]{2,}/g, " ")
.replace(/[ \t]+\n/g, "\n")
.replace(/\n{2,}/g, "\n")
.trim();
}
return { text, mediaUrl };
return mediaUrl ? { text: cleanedText, mediaUrl } : { text: cleanedText };
}