From c9889f7c6622def3b6badde2738c3e912b48144f Mon Sep 17 00:00:00 2001
From: Mike Buland <mike@xagasoft.com>
Date: Thu, 11 Jun 2026 13:42:31 -0700
Subject: Basic if statements work.

I need to tweak the parser to get mid-tags working, then we can have
else, and maybe elif.

After that is expressions.
---
 src/parser.rs | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

(limited to 'src/parser.rs')

diff --git a/src/parser.rs b/src/parser.rs
index be5492c..6ba6cfe 100644
--- a/src/parser.rs
+++ b/src/parser.rs
@@ -70,7 +70,7 @@ impl<'a> SymbolHelper for Option<Symbol<'a>> {
                 SymbolType::Output |
                 SymbolType::Loop |
                 SymbolType::If |
-                SymbolType::ElseIf |
+                SymbolType::ElIf |
                 SymbolType::Else |
                 SymbolType::Show => true,
                 _ => false
@@ -88,13 +88,23 @@ pub struct Parser {
 }
 
 /**
- * input: input tag
- *      | input tag_pair
+ * input: input complete_tag
  *      | input text
  *      |
  *      ;
  *
- * tag: '[|' tag_guts '|]'
+ * tag: unary_tag
+ *    | multinary_open_tag
+ *    | multinary_mid_tag
+ *    | multinary_close_tag
+ *    ;
+ *
+ * unary_tag: '[|' tag_guts '|]'
+ *          ;
+ *
+ *    | '[|' tag_guts '|>'
+ *    | '<|' tag_guts '|>'
+ *    | '<|' tag_guts '|]'
  *    ;
  *
  * tag_pair: open_tag tag_body close_tag
@@ -295,7 +305,7 @@ impl Parser {
         if ctx.next().is_some() {
             match ctx.cur().unwrap().symbol() {
                 SymbolType::View | SymbolType::Show | SymbolType::Loop |
-                SymbolType::If | SymbolType::ElseIf | SymbolType::Else |
+                SymbolType::If | SymbolType::ElIf | SymbolType::Else |
                 SymbolType::Output => {
                     let name_sym = ctx.cur().unwrap();
                     ctx.next();
@@ -638,6 +648,14 @@ impl<'a> TagBuilder<'a> {
                     };
                     Ok(Token::Show(id, self.props))
                 }
+                SymbolType::If => {
+                    let id = if let ParamValue::Identifier(id) = self.params.swap_remove(0) {
+                        id
+                    } else {
+                        return Err(CrimError::parse(Position::none(), "Identifier for show variable name.".into()));
+                    };
+                    Ok(Token::If(id, self.children))
+                }
                 _ => {
                     Err(CrimError::parse( self.start_pos, "Bad tag type".into()))
                 }
-- 
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