fix some bugs

mers/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mers"
-version = "0.8.20"
+version = "0.8.25"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "dynamically typed but type-checked programming language"
@@ -15,7 +15,7 @@ default = ["colored-output"]
 colored-output = ["mers_lib/ecolor-term", "mers_lib/pretty-print", "dep:colored"]
 
 [dependencies]
-mers_lib = "0.8.20"
+mers_lib = "0.8.25"
 # mers_lib = { path = "../mers_lib" }
 clap = { version = "4.3.19", features = ["derive"] }
 colored = { version = "2.1.0", optional = true }

mers_lib/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "mers_lib"
-version = "0.8.24"
+version = "0.8.25"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "library to use the mers language in other projects"
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/Dummi26/mers"
 
 [features]
-default = ["parse", "pretty-print", "ecolor-html"]
+default = ["parse"]
 
 # for parsing and running mers code (for most situations: just enable parse)
 parse = ["run"]

mers_lib/src/parsing/mod.rs

@@ -112,6 +112,7 @@ pub struct Source {
     comments: Vec<(usize, String)>,
     i: usize,
     sections: Vec<SectionMarker>,
+    allow_includes: bool,
 }
 impl Clone for Source {
     fn clone(&self) -> Self {
@@ -123,6 +124,7 @@ impl Clone for Source {
             comments: self.comments.clone(),
             i: self.i,
             sections: vec![],
+            allow_includes: self.allow_includes,
         }
     }
 }
@@ -150,12 +152,14 @@ impl Source {
             comments: vec![],
             i: 0,
             sections: vec![],
+            allow_includes: false,
         }
     }
     pub fn new_from_string(source: String) -> Self {
         Self::new(SourceFrom::Unspecified, source)
     }
     pub fn new(src_from: SourceFrom, source: String) -> Self {
+        let allow_includes = matches!(src_from, SourceFrom::File(_));
         let mut src = String::with_capacity(source.len());
         let mut comment = (0, String::new());
         let mut comments = Vec::new();
@@ -222,8 +226,13 @@ impl Source {
             comments,
             i: 0,
             sections: vec![],
+            allow_includes,
         }
     }
+    pub fn allow_includes(mut self, allow_includes: bool) -> Self {
+        self.allow_includes = allow_includes;
+        self
+    }
 
     pub fn src(&self) -> &String {
         &self.src

mers_lib/src/parsing/statements.rs

@@ -281,6 +281,14 @@ pub fn parse_no_chain(
             }
             match src.next_word() {
                 "include" => {
+                    if !src.allow_includes {
+                        return Err(CheckError::new()
+                            .src(vec![(
+                                (pos_in_src, src.get_pos(), srca).into(),
+                                Some(EColor::HashIncludeCantLoadFile),
+                            )])
+                            .msg_str(format!("not allowed to use #include (only allowed when source code is read from a file, or if allow_includes is explicitly set)")));
+                    }
                     let end_in_src = src.get_pos();
                     src.skip_whitespace();
                     let string_in_src = src.get_pos();

mers_lib/src/pretty_print.rs

@@ -75,6 +75,7 @@ impl ThemeGen for DefaultTheme {
     type T = std::io::Stdout;
     fn color(&self, text: &str, color: Self::C, t: &mut Self::T) {
         use colored::{Color, Colorize};
+        use std::io::Write;
         if let Some(color) = map_color(color) {
             let _ = write!(
                 t,
@@ -92,6 +93,7 @@ impl ThemeGen for DefaultTheme {
         }
     }
     fn nocolor(&self, text: &str, t: &mut Self::T) {
+        use std::io::Write;
         let _ = write!(t, "{}", text);
     }
 }