From da917757763628238577ad669cea19a90cbb4d01 Mon Sep 17 00:00:00 2001
From: Miroslav Oujesky <mira@oujesky.cz>
Date: Tue, 3 Nov 2015 17:05:17 +0100
Subject: [PATCH] Fixed handling of literal text blocks enclosed in {literal}
 command.

---
 .../phpsrc/internal/GenPhpExprsVisitor.java   |  2 +-
 .../soy/phpsrc/restricted/PhpExprUtils.java   | 37 +++++++++++++++++++
 .../internal/GenPhpCodeVisitorTest.java       | 14 +++++++
 3 files changed, 52 insertions(+), 1 deletion(-)

diff --git a/java/src/com/google/template/soy/phpsrc/internal/GenPhpExprsVisitor.java b/java/src/com/google/template/soy/phpsrc/internal/GenPhpExprsVisitor.java
index 0f7353dc6..fea496640 100644
--- a/java/src/com/google/template/soy/phpsrc/internal/GenPhpExprsVisitor.java
+++ b/java/src/com/google/template/soy/phpsrc/internal/GenPhpExprsVisitor.java
@@ -134,7 +134,7 @@ List<PhpExpr> execOnChildren(ParentSoyNode<?> node) {
      */
     @Override protected void visitRawTextNode(RawTextNode node) {
         // Escape special characters in the text before writing as a string.
-        String exprText = BaseUtils.escapeToSoyString(node.getRawText(), false);
+        String exprText = PhpExprUtils.escapeLiteralString(node.getRawText());
         phpExprs.add(new PhpStringExpr(exprText));
     }
 
diff --git a/java/src/com/google/template/soy/phpsrc/restricted/PhpExprUtils.java b/java/src/com/google/template/soy/phpsrc/restricted/PhpExprUtils.java
index d65b077cc..ad7140149 100644
--- a/java/src/com/google/template/soy/phpsrc/restricted/PhpExprUtils.java
+++ b/java/src/com/google/template/soy/phpsrc/restricted/PhpExprUtils.java
@@ -242,4 +242,41 @@ public static String escapePhpMethodName(String phpMethodName) {
 
         return phpMethodName;
     }
+
+    /**
+     * Escapes raw literal string to PHP string
+     *
+     * Based on BaseUtil.escapeSoyString(), but adjusted to work with PHP apostrophe enclosed strings
+     *
+     * Line breaks are transformed as PHP_EOL constants, backslashes and apostrohpes are escaped,
+     * other characters are left in their literal form
+     *
+     * @param value
+     * @return Prepared PHP string
+     */
+    public static String escapeLiteralString(String value) {
+
+        int len = value.length();
+        StringBuilder out = new StringBuilder(len * 9 / 8);
+        out.append('\'');
+
+        int codePoint;
+        for (int i = 0; i < len; i += Character.charCount(codePoint)) {
+            codePoint = value.codePointAt(i);
+
+            switch (codePoint) {
+                case '\n': out.append("'.PHP_EOL.'"); break;
+                // remove \r completely, line breaks are handled on \n
+                case '\r': out.append(""); break;
+                case '\\': out.append("\\\\"); break;
+                case '\'': out.append("\\'"); break;
+                default:
+                    out.appendCodePoint(codePoint);
+                    break;
+            }
+        }
+
+        out.append('\'');
+        return out.toString();
+    }
 }
diff --git a/java/tests/com/google/template/soy/phpsrc/internal/GenPhpCodeVisitorTest.java b/java/tests/com/google/template/soy/phpsrc/internal/GenPhpCodeVisitorTest.java
index e8a4139a0..9de2d0ebc 100644
--- a/java/tests/com/google/template/soy/phpsrc/internal/GenPhpCodeVisitorTest.java
+++ b/java/tests/com/google/template/soy/phpsrc/internal/GenPhpCodeVisitorTest.java
@@ -343,4 +343,18 @@ public void testCallReturnsString() {
 
         assertThatSoyCode(soyCode).compilesTo(expectedPhpCode);
     }
+
+    public void testLiteral() {
+        String soyCode = "{literal}\n" +
+                "    /* some\n" +
+                "       multiline\n" +
+                "       string */\n" +
+                "    {$a}\n" +
+                "\t'\"test&\n" +
+                "{/literal}";
+
+        String expectedPhpCode = "$output .= ''.PHP_EOL.'    /* some'.PHP_EOL.'       multiline'.PHP_EOL.'       string */'.PHP_EOL.'    {$a}'.PHP_EOL.'\t\\'\"test&'.PHP_EOL.'';\n";
+
+        assertThatSoyCode(soyCode).compilesTo(expectedPhpCode);
+    }
 }