Add support for inferring line ending, configurable

*   Rename `CompileOptions` to `Options`
*   Add support for an optional default line ending style
*   Add support for inferring the used line ending style

1 files changed, 161 insertions, 0 deletions

diff --git a/tests/misc_line_ending.rs b/tests/misc_line_ending.rs
new file mode 100644
index 0000000..195ddaa
--- /dev/null
+++ b/tests/misc_line_ending.rs
@@ -0,0 +1,161 @@
+extern crate micromark;
+use micromark::{micromark, micromark_with_options, Options};
+
+const DANGER: &Options = &Options {
+    allow_dangerous_html: true,
+    allow_dangerous_protocol: true,
+    default_line_ending: None,
+};
+
+#[test]
+fn line_ending() {
+    assert_eq!(
+        micromark("a\nb"),
+        "<p>a\nb</p>",
+        "should support a line feed for a line ending inside a paragraph"
+    );
+
+    assert_eq!(
+        micromark("a\rb"),
+        "<p>a\rb</p>",
+        "should support a carriage return for a line ending inside a paragraph"
+    );
+
+    assert_eq!(
+        micromark("a\r\nb"),
+        "<p>a\r\nb</p>",
+        "should support a carriage return + line feed for a line ending inside a paragraph"
+    );
+
+    assert_eq!(
+        micromark("\ta\n\tb"),
+        "<pre><code>a\nb\n</code></pre>",
+        "should support a line feed in indented code (and prefer it)"
+    );
+
+    assert_eq!(
+        micromark("\ta\r\tb"),
+        "<pre><code>a\rb\r</code></pre>",
+        "should support a carriage return in indented code (and prefer it)"
+    );
+
+    assert_eq!(
+        micromark("\ta\r\n\tb"),
+        "<pre><code>a\r\nb\r\n</code></pre>",
+        "should support a carriage return + line feed in indented code (and prefer it)"
+    );
+
+    assert_eq!(
+        micromark("***\n### Heading"),
+        "<hr />\n<h3>Heading</h3>",
+        "should support a line feed between flow"
+    );
+
+    assert_eq!(
+        micromark("***\r### Heading"),
+        "<hr />\r<h3>Heading</h3>",
+        "should support a carriage return between flow"
+    );
+
+    assert_eq!(
+        micromark("***\r\n### Heading"),
+        "<hr />\r\n<h3>Heading</h3>",
+        "should support a carriage return + line feed between flow"
+    );
+
+    assert_eq!(
+        micromark("***\n\n\n### Heading\n"),
+        "<hr />\n<h3>Heading</h3>\n",
+        "should support several line feeds between flow"
+    );
+
+    assert_eq!(
+        micromark("***\r\r\r### Heading\r"),
+        "<hr />\r<h3>Heading</h3>\r",
+        "should support several carriage returns between flow"
+    );
+
+    assert_eq!(
+        micromark("***\r\n\r\n\r\n### Heading\r\n"),
+        "<hr />\r\n<h3>Heading</h3>\r\n",
+        "should support several carriage return + line feeds between flow"
+    );
+
+    assert_eq!(
+        micromark("```x\n\n\ny\n\n\n```\n\n\n"),
+        "<pre><code class=\"language-x\">\n\ny\n\n\n</code></pre>\n",
+        "should support several line feeds in fenced code"
+    );
+
+    assert_eq!(
+        micromark("```x\r\r\ry\r\r\r```\r\r\r"),
+        "<pre><code class=\"language-x\">\r\ry\r\r\r</code></pre>\r",
+        "should support several carriage returns in fenced code"
+    );
+
+    assert_eq!(
+        micromark("```x\r\n\r\n\r\ny\r\n\r\n\r\n```\r\n\r\n\r\n"),
+        "<pre><code class=\"language-x\">\r\n\r\ny\r\n\r\n\r\n</code></pre>\r\n",
+        "should support several carriage return + line feeds in fenced code"
+    );
+
+    assert_eq!(
+        micromark("A\r\nB\r\n-\r\nC"),
+        "<h2>A\r\nB</h2>\r\n<p>C</p>",
+        "should support a carriage return + line feed in content"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div\n", DANGER),
+        "<div\n",
+        "should support a line feed after html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div\r", DANGER),
+        "<div\r",
+        "should support a carriage return after html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div\r\n", DANGER),
+        "<div\r\n",
+        "should support a carriage return + line feed after html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div>\n\nx", DANGER),
+        "<div>\n<p>x</p>",
+        "should support a blank line w/ line feeds after html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div>\r\rx", DANGER),
+        "<div>\r<p>x</p>",
+        "should support a blank line w/ carriage returns after html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div>\r\n\r\nx", DANGER),
+        "<div>\r\n<p>x</p>",
+        "should support a blank line w/ carriage return + line feeds after html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div>\nx", DANGER),
+        "<div>\nx",
+        "should support a non-blank line w/ line feed in html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div>\rx", DANGER),
+        "<div>\rx",
+        "should support a non-blank line w/ carriage return in html"
+    );
+
+    assert_eq!(
+        micromark_with_options("<div>\r\nx", DANGER),
+        "<div>\r\nx",
+        "should support a non-blank line w/ carriage return + line feed in html"
+    );
+}