Allow svg and xml templates as well as html.

Allow template source files to be named *.rs.svg or *.rs.xml along
with *.rs.html.  The generated template functions will simlilarly be
suffixed _svg, _xml or _html (any template_html will get a template
alias, for backwards compatibility.

Helps #20.

examples/simple/src/main.rs

@@ -6,7 +6,7 @@ include!(concat!(env!("OUT_DIR"), "/templates.rs"));
 use templates::*;
 
 fn main() {
-    page::page(&mut io::stdout(), "sample page").unwrap();
+    page::page_html(&mut io::stdout(), "sample page").unwrap();
 }
 
 fn r2s<Call>(call: Call) -> String
@@ -21,78 +21,81 @@ where
 #[test]
 fn test_hello() {
     assert_eq!(
-        r2s(|o| hello(o)),
+        r2s(|o| hello_html(o)),
         "<h1>Hello World!</h1>\
          \n<p>Note: Brackets and @ signs needs to be escaped: { ... }</p>\n"
     );
 }
 
 #[test]
 fn test_hello_args() {
-    assert_eq!(r2s(|o| hello_args(o, "World")), "<h1>Hello World!</h1>\n");
+    assert_eq!(
+        r2s(|o| hello_args_html(o, "World")),
+        "<h1>Hello World!</h1>\n",
+    );
 }
 
 #[test]
 fn test_hello_encodes_args() {
     assert_eq!(
-        r2s(|o| hello_args(o, "encoded < & >")),
+        r2s(|o| hello_args_html(o, "encoded < & >")),
         "<h1>Hello encoded &lt; &amp; &gt;!</h1>\n"
     );
 }
 
 #[test]
 fn test_hello_args_two() {
     assert_eq!(
-        r2s(|o| hello_args_two(o, 56, "prime", false)),
+        r2s(|o| hello_args_two_html(o, 56, "prime", false)),
         "<p class=\"foo\" data-n=\"56\">Is 56 a prime? false!</p>\n"
     );
 }
 
 #[test]
 fn test_hello_args_three() {
     assert_eq!(
-        r2s(|o| hello_args_three(o, 56, &56, &56)),
+        r2s(|o| hello_args_three_html(o, 56, &56, &56)),
         "<p>56 56 56</p>\n"
     );
 }
 
 #[test]
 fn test_if_let_some() {
     assert_eq!(
-        r2s(|o| if_let(o, Some("thing"))),
+        r2s(|o| if_let_html(o, Some("thing"))),
         "<p> The item is thing </p>\n"
     )
 }
 #[test]
 fn test_if_let_none() {
-    assert_eq!(r2s(|o| if_let(o, None)), "<p> Got nothing </p>\n")
+    assert_eq!(r2s(|o| if_let_html(o, None)), "<p> Got nothing </p>\n")
 }
 
 #[test]
 fn test_if_let_destructure() {
     assert_eq!(
-        r2s(|o| if_let_destructure(o, &Some((47, 11)))),
+        r2s(|o| if_let_destructure_html(o, &Some((47, 11)))),
         "<p> We have 47 and 11 </p>\n"
     )
 }
 
 #[test]
 fn test_list() {
     assert_eq!(
-        r2s(|o| list(o, &["foo", "bar"])),
+        r2s(|o| list_html(o, &["foo", "bar"])),
         "\n<ul>\n  \n    <li>foo</li>\n  \n    <li>bar</li>\n  </ul>\n\n"
     );
 }
 
 #[test]
 fn test_list_empty() {
-    assert_eq!(r2s(|o| list(o, &[])), "\n<p>No items</p>\n\n");
+    assert_eq!(r2s(|o| list_html(o, &[])), "\n<p>No items</p>\n\n");
 }
 
 #[test]
 fn test_list_destructure() {
     assert_eq!(
-        r2s(|o| list_destructure(o, &["foo", "bar"])),
+        r2s(|o| list_destructure_html(o, &["foo", "bar"])),
         "<ul>\n  \n    <li>0: foo</li>\n  \n    \
          <li>1: bar</li>\n  </ul>\n"
     );
@@ -101,7 +104,7 @@ fn test_list_destructure() {
 #[test]
 fn test_list_destructure_2() {
     assert_eq!(
-        r2s(|o| list_destructure_2(o)),
+        r2s(|o| list_destructure_2_html(o)),
         "\n    <p>Rasmus is 44 years old.</p>\n\n    \
          <p>Mike is 36 years old.</p>\n"
     );
@@ -110,7 +113,7 @@ fn test_list_destructure_2() {
 #[test]
 fn test_uselist() {
     assert_eq!(
-        r2s(|o| uselist(o)),
+        r2s(|o| uselist_html(o)),
         "<h1>Two items</h1>\n\n\
          <ul>\n  \n    <li>foo</li>\n  \
          \n    <li>bar</li>\n  </ul>\n\n\n\
@@ -122,7 +125,7 @@ fn test_uselist() {
 #[test]
 fn test_hello_utf8() {
     assert_eq!(
-        r2s(|o| hello_utf8(o, "δ", "ε", "δ < ε", "δ &lt; ε")),
+        r2s(|o| hello_utf8_html(o, "δ", "ε", "δ < ε", "δ &lt; ε")),
         "<p>δ &lt; ε</p>\n\
          <p>δ &lt; ε</p>\n\
          <p>δ &lt; ε</p>\n\
@@ -133,7 +136,7 @@ fn test_hello_utf8() {
 #[test]
 fn test_comments() {
     assert_eq!(
-        r2s(|o| comments(o)),
+        r2s(|o| comments_html(o)),
         "<!-- this is a real HTML comment, which gets send to the client -->\n\
          <p>This is visible</p>\n\n"
     );
@@ -166,7 +169,7 @@ fn test_hello_fields() {
         email: "[email protected]",
     };
     assert_eq!(
-        r2s(|o| hello_fields(o, &user)),
+        r2s(|o| hello_fields_html(o, &user)),
         "<h1>Hello Tom Puss!</h1>\n<p>Your email is \
          [email protected]</p>\n"
     );
@@ -179,7 +182,7 @@ fn test_hello_method() {
         email: "[email protected]",
     };
     assert_eq!(
-        r2s(|o| hello_method(o, &user)),
+        r2s(|o| hello_method_html(o, &user)),
         "<h1>Hello Tom Puss!</h1>\n<p>Your email is \
          <a href=\"mailto:[email protected]\">[email protected]</a></p>\n"
     );
@@ -189,15 +192,15 @@ fn test_hello_method() {
 fn test_hello_code() {
     use templates::Html;
     assert_eq!(
-        r2s(|o| hello_code(o, &"Paragraph:", &Html("<p>Hello.</p>"))),
+        r2s(|o| hello_code_html(o, &"Paragraph:", &Html("<p>Hello.</p>"))),
         "<h2>Paragraph:</h2>\n<p>Hello.</p>\n"
     );
 }
 
 #[test]
 fn test_for_loop() {
     assert_eq!(
-        r2s(|o| for_loop(o, &vec!["Hello", "World"])),
+        r2s(|o| for_loop_html(o, &vec!["Hello", "World"])),
         "<h1>Looped paragraphs</h1>\n\n  \
          <p>Hello</p>\n\n  <p>World</p>\n"
     );
@@ -216,15 +219,15 @@ fn test_for_destructure() {
         },
     ];
     assert_eq!(
-        r2s(|o| for_destructure(o, &users)),
+        r2s(|o| for_destructure_html(o, &users)),
         "<ul><li>Tom Puss</li><li>Heloise Walker</li></ul>\n",
     )
 }
 
 #[test]
 fn test_explicit_formatting() {
     assert_eq!(
-        r2s(|o| explicit_formatting(o, 5.212432234, "one\ntwo")),
+        r2s(|o| explicit_formatting_html(o, 5.212432234, "one\ntwo")),
         "<p>Value 1 is 5.2 (or really 5.212432234),\n\
          while value 2 is &quot;one\\ntwo&quot;.</p>\n"
     );
@@ -233,7 +236,7 @@ fn test_explicit_formatting() {
 #[test]
 fn test_hello_use_templates() {
     assert_eq!(
-        r2s(|o| hello_use_templates(o, &Html("<p>this is foo</p>"))),
+        r2s(|o| hello_use_templates_html(o, &Html("<p>this is foo</p>"))),
         "<h1>Hello World!</h1>\
          \n<p>Note: Brackets and @ signs needs to be escaped: { ... }</p>\n\
          \n<h2>foo</h2>\n<p>this is foo</p>\n\n"
@@ -243,7 +246,7 @@ fn test_hello_use_templates() {
 #[test]
 fn test_page_with_base() {
     assert_eq!(
-        r2s(|o| page::page(o, "World")),
+        r2s(|o| page::page_html(o, "World")),
         "<!doctype html>\
          \n<html>\
          \n  <head><title>Hello World!</title>\
@@ -262,7 +265,7 @@ fn test_page_with_base() {
 #[test]
 fn test_page_two() {
     assert_eq!(
-        r2s(|o| page::page_two(o, 2019)),
+        r2s(|o| page::page_two_html(o, 2019)),
         "<!doctype html>\
          \n<html lang=\"sv\">\
          \n  <head>\

examples/simple/templates/hello_use_templates.rs.html

@@ -1,7 +1,7 @@
-@use super::hello;
-@use super::hello_code;
+@use super::hello_html;
+@use super::hello_code_html;
 
 @(body: &ToHtml)
 
-@:hello()
-@:hello_code(&"foo", body)
+@:hello_html()
+@:hello_code_html(&"foo", body)

examples/simple/templates/page/page.rs.html

@@ -1,8 +1,8 @@
-@use super::base;
+@use super::base_html;
 
 @(who: &str)
 
-@:base(&format!("Hello {}!", who), {
+@:base_html(&format!("Hello {}!", who), {
   <p>This is page content for @who</p>
 }, {
   <meta property="og:description" content="A simple example"/>

examples/simple/templates/page/page_two.rs.html

@@ -1,7 +1,7 @@
-@use super::base_two;
+@use super::base_two_html;
 
 @(year: u16)
-@:base_two(&format!("Year {}", year), {
+@:base_two_html(&format!("Year {}", year), {
   <p>Welcome to this page about the year @year.</p>
 },
 {

examples/simple/templates/uselist.rs.html

@@ -1,4 +1,4 @@
-@use super::list;
+@use super::list_html as list;
 
 @()
 

src/Template_syntax.rs

@@ -207,12 +207,12 @@ pub mod d_Calling_other_templates {
     //! It can be used like this:
     //!
     //! ```text
-    //! @use super::header;
+    //! @use super::header_html;
     //!
     //! @()
     //!
     //! <html>
-    //!   @:header("Example")
+    //!   @:header_html("Example")
     //!   <body>
     //!     <h1>Example</h1>
     //!     <p>page content ...</p>
@@ -242,11 +242,11 @@ pub mod d_Calling_other_templates {
     //! And use it like this:
     //!
     //! ```text
-    //! @use super::base_page;
+    //! @use super::base_page_html;
     //!
     //! @()
     //!
-    //! @:base_page("Example", {
+    //! @:base_page_html("Example", {
     //!     <p>page content ...</p>
     //! })
     //! ```

src/lib.rs

@@ -74,7 +74,7 @@
 //! #[test]
 //! fn test_hello() {
 //!     let mut buf = Vec::new();
-//!     templates::hello(&mut buf, "World").unwrap();
+//!     templates::hello_html(&mut buf, "World").unwrap();
 //!     assert_eq!(buf, b"<h1>Hello World!</h1>\n");
 //! }
 //! ```
@@ -103,7 +103,7 @@
 //! build = "src/build.rs"
 //!
 //! [build-dependencies]
-//! ructe = { version = "0.6.0", features = ["sass", "mime03"]
+//! ructe = { version = "0.6.0", features = ["sass", "mime03"] }
 //!
 //! [dependencies]
 //! mime = "0.3.13"
@@ -237,6 +237,15 @@ impl Ructe {
     /// If indir is a relative path, it should be relative to the main
     /// directory of your crate, i.e. the directory containing your
     /// `Cargo.toml` file.
+    ///
+    /// Files with suffix `.rs.html`, `.rs.svg`, or `.rs.xml` are
+    /// considered templates.
+    /// A templete file called `template.rs.html`, `template.rs.svg`,
+    /// etc, will result in a callable function named `template_html`,
+    /// `template_svg`, etc.
+    /// The `template_html` function will get a `template` alias for
+    /// backwards compatibility, but that will be removed in a future
+    /// release.
     pub fn compile_templates<P>(&mut self, indir: P) -> Result<()>
     where
         P: AsRef<Path>,
@@ -305,7 +314,6 @@ fn handle_entries(
     outdir: &Path,
 ) -> Result<()> {
     println!("cargo:rerun-if-changed={}", indir.display());
-    let suffix = ".rs.html";
     for entry in read_dir(indir)? {
         let entry = entry?;
         let path = entry.path();
@@ -325,16 +333,31 @@ fn handle_entries(
                 writeln!(f, "pub mod {name};\n", name = filename)?;
             }
         } else if let Some(filename) = entry.file_name().to_str() {
-            if filename.ends_with(suffix) {
-                println!("cargo:rerun-if-changed={}", path.display());
-                let name = &filename[..filename.len() - suffix.len()];
-                if handle_template(name, &path, outdir)? {
-                    writeln!(
-                        f,
-                        "mod template_{name};\n\
-                         pub use self::template_{name}::{name};\n",
-                        name = name,
-                    )?;
+            for suffix in &[".rs.html", ".rs.svg", ".rs.xml"] {
+                if filename.ends_with(suffix) {
+                    println!("cargo:rerun-if-changed={}", path.display());
+                    let prename = &filename[..filename.len() - suffix.len()];
+                    let name =
+                        format!("{}_{}", prename, &suffix[".rs.".len()..]);
+                    if handle_template(&name, &path, outdir)? {
+                        writeln!(
+                            f,
+                            "mod template_{name};\n\
+                             pub use self::template_{name}::{name};\n",
+                            name = name,
+                        )?;
+                        // Backwards compatibility to 0.7.2 and earlier.
+                        if suffix == &".rs.html" {
+                            writeln!(
+                                f,
+                                "#[deprecated(since=\"0.7.4\", \
+                                 note=\"please use `{name}` instead\")]\n\
+                                 pub use self::{name} as {alias};\n",
+                                alias = prename,
+                                name = name,
+                            )?;
+                        }
+                    }
                 }
             }
         }