Add special DNL macro, do a bunch of skaldpress-stuff

3 files changed, 75 insertions, 33 deletions

diff --git a/src/macro_processor/macro_processor.rs b/src/macro_processor/macro_processor.rs
index f26780e..82a94ef 100644
--- a/src/macro_processor/macro_processor.rs
+++ b/src/macro_processor/macro_processor.rs
@@ -51,9 +51,9 @@ fn smp_builtin_define(
     let arg0 = smp.process_input(&args[0])?;
     if args.len() > 1 {
         let arg1 = smp.process_input(&args[1])?;
-        smp.define_macro(arg0, arg1);
+        smp.define_macro(arg0, MacroType::String(arg1));
     } else {
-        smp.define_macro(arg0, String::new());
+        smp.define_macro(arg0, MacroType::String(String::new()));
     }
     Ok(String::new())
 }
@@ -212,6 +212,7 @@ enum ParserState {
     Normal,
     InMacro,
     InMacroArgs,
+    DNL,
 }
 
 /// Defines a MacroProcessor object, with it's associated state
@@ -233,32 +234,32 @@ impl MacroProcessor {
     /// Bootstrapping-function for defining all builtins,
     /// the same way all other macros might be defined
     fn define_builtins(&mut self) {
-        self.define_macro_fn(
+        self.define_macro(
             String::from("define"),
             MacroType::Function(smp_builtin_define),
         );
-        self.define_macro_fn(
+        self.define_macro(
             String::from("ifdef"),
             MacroType::Function(smp_builtin_ifdef),
         );
-        self.define_macro_fn(
+        self.define_macro(
             String::from("ifndef"),
             MacroType::Function(smp_builtin_ifndef),
         );
-        self.define_macro_fn(String::from("ifeq"), MacroType::Function(smp_builtin_ifeq));
-        self.define_macro_fn(
+        self.define_macro(String::from("ifeq"), MacroType::Function(smp_builtin_ifeq));
+        self.define_macro(
             String::from("ifneq"),
             MacroType::Function(smp_builtin_ifneq),
         );
-        self.define_macro_fn(
+        self.define_macro(
             String::from("include"),
             MacroType::Function(smp_builtin_include),
         );
-        self.define_macro_fn(
+        self.define_macro(
             String::from("shell"),
             MacroType::Function(smp_builtin_shell),
         );
-        self.define_macro_fn(String::from("expr"), MacroType::Function(smp_builtin_expr));
+        self.define_macro(String::from("expr"), MacroType::Function(smp_builtin_expr));
         // format('Result id %d', 3282)
     }
 
@@ -268,7 +269,7 @@ impl MacroProcessor {
     ///
     /// * `name` - The name of the new macro
     /// * `body` - The body of the new macro, this will be expanded when macro is executed
-    pub fn define_macro(&mut self, name: String, body: String) {
+    pub fn define_macro_string(&mut self, name: String, body: String) {
         self.macros.insert(name, MacroType::String(body));
     }
 
@@ -278,7 +279,7 @@ impl MacroProcessor {
     ///
     /// * `name` - The name of the new macro
     /// * `macro_expansion` - The MacroType struct to use.
-    pub fn define_macro_fn(&mut self, name: String, macro_expansion: MacroType) {
+    pub fn define_macro(&mut self, name: String, macro_expansion: MacroType) {
         self.macros.insert(name, macro_expansion);
     }
 
@@ -303,11 +304,12 @@ impl MacroProcessor {
                     let placeholder = format!("${}", i + 1);
                     expanded = expanded.replace(&placeholder, arg);
                 }
-                return Ok(expanded);
+                self.process_input(&expanded)
             }
             MacroType::Function(func) => {
                 return func(self, macro_name, args);
             }
+            MacroType::Array(vec) => return Ok(format!("Array[{}]", vec.len())),
         }
     }
 
@@ -339,6 +341,11 @@ impl MacroProcessor {
             highlight_debug!(input, macro_name_start, i);
 
             match state {
+                ParserState::DNL => {
+                    if c == '\n' {
+                        state = ParserState::Normal;
+                    }
+                }
                 ParserState::Normal => {
                     macro_name_start = i;
 
@@ -365,6 +372,12 @@ impl MacroProcessor {
                         }
                         if macro_name == "SNNL" {
                             skip_next_line_ending = c != '\n';
+                        } else if macro_name == "DNL" {
+                            if c != '\n' {
+                                state = ParserState::DNL;
+                            }
+                            macro_name.clear();
+                            continue;
                         } else {
                             let expanded = self.expand_macro(&macro_name, &mut [])?;
                             output.push_str(&expanded);
diff --git a/src/skaldpress/error.rs b/src/skaldpress/error.rs
index 65a89ab..ae769a5 100644
--- a/src/skaldpress/error.rs
+++ b/src/skaldpress/error.rs
@@ -6,7 +6,8 @@ pub const SP_COMPILE_FILE_TEMPLATE_READ_ERROR: u8 = 2;
 pub const SP_COMPILE_FILE_EXTENSION_ERROR_2: u8 = 3;
 pub const SP_GEN_DEST_STRIP_PREFIX_ERROR: u8 = 4;
 pub const SP_COMPILE_FILE_EXTENSION_ERROR: u8 = 7;
-pub const SP_COMPILE_FILE_MACRO_PROCESS_ERROR: u8 = 9;
+pub const SP_COMPILE_TEMPLATE_MACRO_PROCESS_ERROR: u8 = 9;
+pub const SP_COMPILE_FILE_MACRO_PROCESS_ERROR: u8 = 10;
 
 #[derive(Debug)]
 pub enum SkaldpressError {
diff --git a/src/skaldpress/main.rs b/src/skaldpress/main.rs
index 3563bf7..c1b2006 100644
--- a/src/skaldpress/main.rs
+++ b/src/skaldpress/main.rs
@@ -1,3 +1,4 @@
+use std::collections::HashMap;
 use std::fs;
 use std::path::Path;
 
@@ -6,15 +7,22 @@ use skaldpress::skaldpress::error::SkaldpressError;
 use skaldpress::skaldpress::error::{
     SP_COMPILE_FILE_EXTENSION_ERROR, SP_COMPILE_FILE_EXTENSION_ERROR_2,
     SP_COMPILE_FILE_MACRO_PROCESS_ERROR, SP_COMPILE_FILE_TEMPLATE_READ_ERROR,
-    SP_GEN_DEST_STRIP_PREFIX_ERROR,
+    SP_COMPILE_TEMPLATE_MACRO_PROCESS_ERROR, SP_GEN_DEST_STRIP_PREFIX_ERROR,
 };
 use skaldpress::skaldpress::metadata_parser::extract_parse_yaml_metadata;
+use skaldpress::skaldpress::metadata_parser::YamlValue;
 
 const TEMPLATES_DIR: &str = "templates/";
 const CONTENT_DIR: &str = "content/";
 const BUILD_DIR: &str = "build/";
 
-fn compile_file(file_path: &Path) -> Result<String, SkaldpressError> {
+struct CompiledFile {
+    content: String,
+    metadata: HashMap<String, YamlValue>,
+}
+
+/// Will attempt to compile a specific file, potentially storing some state about the file
+fn compile_file(file_path: &Path) -> Result<CompiledFile, SkaldpressError> {
     let extension = file_path
         .extension()
         .ok_or(SkaldpressError::PathOperationError(
@@ -40,33 +48,54 @@ fn compile_file(file_path: &Path) -> Result<String, SkaldpressError> {
         _ => file_content.to_string(),
     };
 
-    let Some(template) = map.get("template") else {
-        return Ok(file_content);
+    let mut macro_processor = MacroProcessor::new();
+    for (key, value) in &map {
+        macro_processor.define_macro_string(format!("METADATA_{}", key), value.to_string());
+    }
+
+    let Some(template) = &map.get("template") else {
+        let file_content = macro_processor
+            .process_input(&file_content)
+            .map_err(|e| SkaldpressError::SMPError(SP_COMPILE_FILE_MACRO_PROCESS_ERROR, e))?;
+        return Ok(CompiledFile {
+            content: file_content,
+            metadata: map,
+        });
     };
 
-    let template_file = format!("{}{}.html", TEMPLATES_DIR, template);
+    let template_file = format!("{}{}", TEMPLATES_DIR, template);
     let template = fs::read_to_string(&template_file).map_err(|e| {
         SkaldpressError::TemplateReadError(SP_COMPILE_FILE_TEMPLATE_READ_ERROR, e, template_file)
     })?;
 
-    let mut macro_processor = MacroProcessor::new();
-    for (key, value) in map {
-        macro_processor.define_macro(format!("METADATA_{}", key), value.to_string());
-    }
-    macro_processor.define_macro(String::from("CONTENT"), file_content);
-    macro_processor
+    macro_processor.define_macro_string(String::from("CONTENT"), file_content);
+    let content = macro_processor
         .process_input(&template)
-        .map_err(|e| SkaldpressError::SMPError(SP_COMPILE_FILE_MACRO_PROCESS_ERROR, e))
+        .map_err(|e| SkaldpressError::SMPError(SP_COMPILE_TEMPLATE_MACRO_PROCESS_ERROR, e))?;
+    Ok(CompiledFile {
+        content,
+        metadata: map,
+    })
 }
 
 fn compile_file_and_write(source_file_path: &Path) -> Result<(), Box<dyn std::error::Error>> {
+    let cfile = compile_file(&source_file_path)?;
+
+    if let Some(skip_build) = cfile.metadata.get("skip_build") {
+        if let YamlValue::Scalar(skip_build) = skip_build {
+            if skip_build.to_lowercase() == "true" {
+                return Ok(());
+            }
+        }
+    }
+
     let dest_file_path = Path::new(BUILD_DIR)
-        .join(
-            source_file_path
-                .strip_prefix(CONTENT_DIR)
-                .map_err(|e| SkaldpressError::PathOperationError(SP_GEN_DEST_STRIP_PREFIX_ERROR, Some(Box::new(e))))?,
-        )
+        .join(source_file_path.strip_prefix(CONTENT_DIR).map_err(|e| {
+            SkaldpressError::PathOperationError(SP_GEN_DEST_STRIP_PREFIX_ERROR, Some(Box::new(e)))
+        })?)
         .with_extension("html");
+    // Here we need to do something about the extension, read it from the metadata of the template,
+    // or the main file
 
     let dest_dir = &dest_file_path
         .parent()
@@ -79,8 +108,7 @@ fn compile_file_and_write(source_file_path: &Path) -> Result<(), Box<dyn std::er
         )
     })?;
 
-    let file_content = compile_file(&source_file_path)?;
-    fs::write(&dest_file_path, file_content)?;
+    fs::write(&dest_file_path, cfile.content)?;
     Ok(())
 }