parse EOL as a token

2026-05-15 00:16:13 -07:00
parent c8ad7e74e7
commit 64e5467062
8 changed files with 16909 additions and 15378 deletions
@@ -0,0 +1,249 @@
+================================================================
+shorthand if — single statement body, terminated by newline
+================================================================
+
+if (cond) honk()
+toot()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments)))
+  (function_call
+    name: (identifier)
+    arguments: (arguments)))
+
+================================================================
+shorthand if — single statement body, terminated by EOF
+================================================================
+
+if (cond) honk()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))))
+
+================================================================
+shorthand if — multi-statement body collected into shorthand
+================================================================
+
+if (is_falling()) wheeee() splat()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))))
+
+================================================================
+shorthand if — same-line else
+================================================================
+
+if (cond) honk() else toot()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    alternative: (function_call
+      name: (identifier)
+      arguments: (arguments))))
+
+================================================================
+shorthand if — same-line multi-statement else
+================================================================
+
+if (cond) honk() else toot() squawk()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    alternative: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    alternative: (function_call
+      name: (identifier)
+      arguments: (arguments))))
+
+================================================================
+shorthand if nested in standard if — `else` on later line binds
+to OUTER if, not the shorthand (PICO-8 line-significance)
+================================================================
+
+if is_noisy then
+  if (is_goose()) honk()
+else
+  toot()
+end
+
+----------------------------------------------------------------
+
+(chunk
+  (if_statement
+    condition: (identifier)
+    consequence: (block
+      (shorthand_if_statement
+        condition: (function_call
+          name: (identifier)
+          arguments: (arguments))
+        consequence: (function_call
+          name: (identifier)
+          arguments: (arguments))))
+    alternative: (else_statement
+      body: (block
+        (function_call
+          name: (identifier)
+          arguments: (arguments))))))
+
+================================================================
+shorthand if — line comment between body and newline still
+terminates the shorthand at the newline (line comment is in
+extras and is attached to the deepest enclosing node)
+================================================================
+
+if (cond) honk() -- inline
+toot()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    (comment
+      content: (comment_content)))
+  (function_call
+    name: (identifier)
+    arguments: (arguments)))
+
+================================================================
+shorthand if inside a do-block — newline before `end` terminates
+shorthand, then `end` closes the do-block
+================================================================
+
+do
+  if (cond) honk()
+end
+
+----------------------------------------------------------------
+
+(chunk
+  (do_statement
+    body: (block
+      (shorthand_if_statement
+        condition: (identifier)
+        consequence: (function_call
+          name: (identifier)
+          arguments: (arguments))))))
+
+================================================================
+shorthand while — multi-statement body, terminated by newline
+================================================================
+
+while (running) tick() draw()
+cleanup()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_while_statement
+    condition: (identifier)
+    body: (function_call
+      name: (identifier)
+      arguments: (arguments))
+    body: (function_call
+      name: (identifier)
+      arguments: (arguments)))
+  (function_call
+    name: (identifier)
+    arguments: (arguments)))
+
+================================================================
+shorthand while — single statement body, terminated by EOF
+================================================================
+
+while (cond) tick()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_while_statement
+    condition: (identifier)
+    body: (function_call
+      name: (identifier)
+      arguments: (arguments))))
+
+================================================================
+nested shorthand ifs on the same line — a single newline must
+terminate BOTH shorthands (otherwise the outer one greedily
+absorbs the next-line statement)
+================================================================
+
+if (a) if (b) c()
+d()
+
+----------------------------------------------------------------
+
+(chunk
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (shorthand_if_statement
+      condition: (identifier)
+      consequence: (function_call
+        name: (identifier)
+        arguments: (arguments))))
+  (function_call
+    name: (identifier)
+    arguments: (arguments)))
+
+================================================================
+standard if with parenthesized condition coexists with shorthand
+— GLR resolves on the token after `)` (then vs statement)
+================================================================
+
+if (cond) then a() end
+if (cond) a()
+
+----------------------------------------------------------------
+
+(chunk
+  (if_statement
+    condition: (parenthesized_expression
+      (identifier))
+    consequence: (block
+      (function_call
+        name: (identifier)
+        arguments: (arguments))))
+  (shorthand_if_statement
+    condition: (identifier)
+    consequence: (function_call
+      name: (identifier)
+      arguments: (arguments))))