Fix issue with numbers

Cargo.lock

@@ -224,7 +224,7 @@ checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
 
 [[package]]
 name = "openapi-parser"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "clap",
  "env_logger",

src/main.rs

@@ -138,10 +138,28 @@ fn tex_export_inner(tree: &ObjectChild, out: &mut String, required: bool) {
     .unwrap();
 }
 
+fn tex_adapt_name(i: &str) -> String {
+    i.replace('0', "zero")
+        .replace('1', "one")
+        .replace('2', "two")
+        .replace('3', "three")
+        .replace('4', "four")
+        .replace('5', "five")
+        .replace('6', "six")
+        .replace('7', "seven")
+        .replace('8', "height")
+        .replace('9', "nine")
+}
+
 fn tex_export(tree: &TreeNode) -> String {
     let mut out = String::new();
     writeln!(out, "% START OF EXPORT OF SCHEMA {}", tree.name).unwrap();
-    writeln!(out, "\\newcommand{{\\schemadef{}}}{{", tree.name).unwrap();
+    writeln!(
+        out,
+        "\\newcommand{{\\schemadef{}}}{{",
+        tex_adapt_name(&tree.name)
+    )
+    .unwrap();
 
     match &tree.r#type {
         NodeType::Object { children, required } => {