From e70139ddb39ac6c6b41387548dde9d6cd0937961 Mon Sep 17 00:00:00 2001
From: jim <james.p.edwards@protonmail.com>
Date: Tue, 26 Sep 2023 08:05:24 -0500
Subject: [PATCH] Add escape quote utility method.

---
 .github/workflows/gradle-nightly.yml          | 39 -------------------
 .github/workflows/gradle.yml                  |  2 -
 .../java/systems/comodal/jsoniter/JIUtil.java | 32 +++++++++++++++
 .../systems/comodal/jsoniter/TestString.java  | 13 +++++++
 4 files changed, 45 insertions(+), 41 deletions(-)
 delete mode 100644 .github/workflows/gradle-nightly.yml

diff --git a/.github/workflows/gradle-nightly.yml b/.github/workflows/gradle-nightly.yml
deleted file mode 100644
index 3662944..0000000
--- a/.github/workflows/gradle-nightly.yml
+++ /dev/null
@@ -1,39 +0,0 @@
-name: Gradle Nightly Check
-
-on:
-  push:
-    branches:
-      - master
-  schedule:
-    - cron: '0 0 * * 1,4'
-
-jobs:
-  check:
-    strategy:
-      matrix:
-        os: [ ubuntu-latest, macOS-latest ]
-    runs-on: ${{ matrix.os }}
-
-    steps:
-      - uses: actions/checkout@v4
-      - uses: gradle/wrapper-validation-action@v1
-
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: 20
-          java-package: jre
-          cache: 'gradle'
-      - run: printf "org.gradle.java.home=%s" "$JAVA_HOME" > gradle.properties
-
-      - uses: actions/setup-java@v3
-        with:
-          distribution: 'zulu'
-          java-version: 22-ea
-          check-latest: true
-      - run: printf "\norg.gradle.java.installations.paths=%s" "$JAVA_HOME" >> gradle.properties
-      - run: java --version
-
-      - name: Gradle Check
-        run: ./gradlew -PtargetJava=22 check --warning-mode=all --stacktrace --no-daemon
-
diff --git a/.github/workflows/gradle.yml b/.github/workflows/gradle.yml
index 1616dff..a63b613 100644
--- a/.github/workflows/gradle.yml
+++ b/.github/workflows/gradle.yml
@@ -5,8 +5,6 @@ on:
     branches:
       - master
   pull_request:
-  schedule:
-    - cron: '0 0 * * 1,4'
 
 jobs:
   check:
diff --git a/systems.comodal.json_iterator/src/main/java/systems/comodal/jsoniter/JIUtil.java b/systems.comodal.json_iterator/src/main/java/systems/comodal/jsoniter/JIUtil.java
index 8421bc6..31b69c5 100644
--- a/systems.comodal.json_iterator/src/main/java/systems/comodal/jsoniter/JIUtil.java
+++ b/systems.comodal.json_iterator/src/main/java/systems/comodal/jsoniter/JIUtil.java
@@ -38,4 +38,36 @@ public static long compileReplacePattern(final byte byteToFind) {
         | (pattern << 48)
         | (pattern << 56);
   }
+
+  public static String escapeQuotes(final String str) {
+    final char[] chars = str.toCharArray();
+    final char[] escaped = new char[chars.length << 1];
+    char c;
+    for (int escapes = 0, from = 0, dest = 0, to = 0; ; to++) {
+      if (to == chars.length) {
+        if (from == 0) {
+          return str;
+        } else {
+          final int len = to - from;
+          System.arraycopy(chars, from, escaped, dest, len);
+          dest += len;
+          return new String(escaped, 0, dest);
+        }
+      } else {
+        c = chars[to];
+        if (c == '\\') {
+          escapes++;
+        } else if (c == '"' && (escapes & 1) == 0) {
+          final int len = to - from;
+          System.arraycopy(chars, from, escaped, dest, len);
+          dest += len;
+          escaped[dest++] = '\\';
+          from = to;
+          escapes = 0;
+        } else {
+          escapes = 0;
+        }
+      }
+    }
+  }
 }
diff --git a/systems.comodal.json_iterator/src/test/java/systems/comodal/jsoniter/TestString.java b/systems.comodal.json_iterator/src/test/java/systems/comodal/jsoniter/TestString.java
index 2a155d4..c0c4696 100644
--- a/systems.comodal.json_iterator/src/test/java/systems/comodal/jsoniter/TestString.java
+++ b/systems.comodal.json_iterator/src/test/java/systems/comodal/jsoniter/TestString.java
@@ -31,6 +31,19 @@ void test_ascii_string(final JsonIteratorFactory factory) {
     assertArrayEquals(world, ji.decodeBase64String());
   }
 
+  @Test
+  void testEscapeQuotes() {
+    var nestedJson = """
+        {"hello": "world"}""";
+    assertEquals("""
+        {\\"hello\\": \\"world\\"}""", JIUtil.escapeQuotes(nestedJson));
+
+    nestedJson = """
+        {"hello": "\\"world\\""}""";
+    assertEquals("""
+        {\\"hello\\": \\"\\"world\\"\\"}""", JIUtil.escapeQuotes(nestedJson));
+  }
+
   @ParameterizedTest
   @MethodSource("systems.comodal.jsoniter.TestFactories#factories")
   void testRandomBase64Data(final JsonIteratorFactory factory) {