Text replacement show rules

4 files changed, 16 insertions, 11 deletions

diff --git a/src/library/mod.rs b/src/library/mod.rs
index e90e5cc4..eeda620d 100644
--- a/src/library/mod.rs
+++ b/src/library/mod.rs
@@ -83,6 +83,7 @@ pub fn new() -> Scope {
     std.def_fn("cmyk", utility::cmyk);
     std.def_fn("repr", utility::repr);
     std.def_fn("str", utility::str);
+    std.def_fn("regex", utility::regex);
     std.def_fn("lower", utility::lower);
     std.def_fn("upper", utility::upper);
     std.def_fn("letter", utility::letter);
diff --git a/src/library/utility/blind.rs b/src/library/utility/blind.rs
deleted file mode 100644
index 0075ab91..00000000
--- a/src/library/utility/blind.rs
+++ /dev/null
@@ -1,9 +0,0 @@
-use lipsum::lipsum_from_seed;
-
-use crate::library::prelude::*;
-
-/// Create blind text.
-pub fn lorem(_: &mut Context, args: &mut Args) -> TypResult<Value> {
-    let words: usize = args.expect("number of words")?;
-    Ok(Value::Str(lipsum_from_seed(words, 97).into()))
-}
diff --git a/src/library/utility/mod.rs b/src/library/utility/mod.rs
index 4244ccbf..13220242 100644
--- a/src/library/utility/mod.rs
+++ b/src/library/utility/mod.rs
@@ -1,11 +1,9 @@
 //! Computational utility functions.
 
-mod blind;
 mod color;
 mod math;
 mod string;
 
-pub use blind::*;
 pub use color::*;
 pub use math::*;
 pub use string::*;
diff --git a/src/library/utility/string.rs b/src/library/utility/string.rs
index 92d80be2..0b309b31 100644
--- a/src/library/utility/string.rs
+++ b/src/library/utility/string.rs
@@ -1,3 +1,6 @@
+use lipsum::lipsum_from_seed;
+
+use crate::eval::Regex;
 use crate::library::prelude::*;
 use crate::library::text::{Case, TextNode};
 
@@ -37,6 +40,18 @@ fn case(case: Case, args: &mut Args) -> TypResult<Value> {
     })
 }
 
+/// Create blind text.
+pub fn lorem(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    let words: usize = args.expect("number of words")?;
+    Ok(Value::Str(lipsum_from_seed(words, 97).into()))
+}
+
+/// Create a regular expression.
+pub fn regex(_: &mut Context, args: &mut Args) -> TypResult<Value> {
+    let Spanned { v, span } = args.expect::<Spanned<EcoString>>("regular expression")?;
+    Ok(Regex::new(&v).at(span)?.into())
+}
+
 /// Converts an integer into one or multiple letters.
 pub fn letter(_: &mut Context, args: &mut Args) -> TypResult<Value> {
     convert(Numbering::Letter, args)