fix: css: don't parse after getting EOF error

xTrayambak · xTrayambak · commit c8fc3a8b9dbc · 2025-03-07T16:22:33.000+05:30
diff --git a/samples/001.html b/samples/001.html
@@ -3,6 +3,12 @@
     <title>Hello there</title>
   </head>
   <body>
+    <style>
+      h1 {
+        font-size: 64px;
+      }
+    </style>
+
     <h1>Heya.</h1>
     <p>This is just a test.</p>
 
diff --git a/src/components/parsers/css/parser.nim b/src/components/parsers/css/parser.nim
@@ -116,7 +116,14 @@ proc consumeRules*(parser: CSSParser): Stylesheet =
   var stylesheet: Stylesheet
 
   while not parser.eof:
-    let init = &parser.state.next()
+    let initToken = parser.state.next()
+
+    if !initToken:
+      let err = initToken.error()
+      if err.kind == bpEndOfInput:
+        break
+
+    let init = &initToken
     case init.kind
     of tkIdent:
       stylesheet &= parser.onEncounterIdentifier(init)
diff --git a/src/components/renderer/core.nim b/src/components/renderer/core.nim
@@ -297,7 +297,7 @@ proc renderDocument*(renderer: FerusRenderer, document: HTMLDocument) =
       if !child.text:
         warn "renderer: <style> tag has no content; ignoring."
         continue
-
+      
       var parser = newCSSParser(&child.text())
       layout.stylesheet &= parser.consumeRules()
 
diff --git a/tests/basic_css.nim b/tests/basic_css.nim
@@ -2,7 +2,12 @@ import std/[tables]
 import components/parsers/css/parser
 import pretty
 
-var src = readFile "assets/user-agent.css"
+var src = """
+      h1 {
+        font-size: 64px;
+      }
+
+"""
 
 let css = newCSSParser(src)
 let rules = css.consumeRules()
