1 files changed, 70 insertions, 0 deletions
diff --git a/devtools/client/debugger/src/workers/search/project-search.js b/devtools/client/debugger/src/workers/search/project-search.js
new file mode 100644
index 0000000000..f3751b57c4
--- /dev/null
+++ b/devtools/client/debugger/src/workers/search/project-search.js
@@ -0,0 +1,70 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at <http://mozilla.org/MPL/2.0/>. */
+
+// Maybe reuse file search's functions?
+
+import getMatches from "./get-matches";
+
+export function findSourceMatches(content, queryText, options) {
+  if (queryText == "") {
+    return [];
+  }
+
+  const text = content.value;
+  const lines = text.split("\n");
+
+  return getMatches(queryText, text, options).map(({ line, ch, match }) => {
+    const { value, matchIndex } = truncateLine(lines[line], ch);
+    return {
+      line: line + 1,
+      column: ch,
+
+      matchIndex,
+      match,
+      value,
+    };
+  });
+}
+
+// This is used to find start of a word, so that cropped string look nice
+const startRegex = /([ !@#$%^&*()_+\-=\[\]{};':"\\|,.<>\/?])/g;
+// Similarly, find
+const endRegex = new RegExp(
+  [
+    "([ !@#$%^&*()_+-=[]{};':\"\\|,.<>/?])",
+    '[^ !@#$%^&*()_+-=[]{};\':"\\|,.<>/?]*$"/',
+  ].join("")
+);
+// For texts over 100 characters this truncates the text (for display)
+// around the context of the matched text.
+function truncateLine(text, column) {
+  if (text.length < 100) {
+    return {
+      matchIndex: column,
+      value: text,
+    };
+  }
+
+  // Initially take 40 chars left to the match
+  const offset = Math.max(column - 40, 0);
+  // 400 characters should be enough to figure out the context of the match
+  const truncStr = text.slice(offset, column + 400);
+  let start = truncStr.search(startRegex);
+  let end = truncStr.search(endRegex);
+
+  if (start > column) {
+    // No word separator found before the match, so we take all characters
+    // before the match
+    start = -1;
+  }
+  if (end < column) {
+    end = truncStr.length;
+  }
+  const value = truncStr.slice(start + 1, end);
+
+  return {
+    matchIndex: column - start - offset - 1,
+    value,
+  };
+}