switch to plantuml

2026-03-07 00:13:14 +01:00
parent b7aa1079d4
commit cb89557998
6 changed files with 250 additions and 116 deletions
--- a/src/lib/plantumlLanguage.ts
+++ b/src/lib/plantumlLanguage.ts
@@ -0,0 +1,41 @@
+import { StreamLanguage } from '@codemirror/language'
+
+/** Simple PlantUML stream parser for syntax highlighting in CodeMirror */
+const plantumlParser = StreamLanguage.define({
+    name: 'plantuml',
+    token(stream) {
+        // Single-quote line comment (PlantUML)
+        if (stream.match(/^'/)) {
+            stream.skipToEnd()
+            return 'comment'
+        }
+        // Double-quoted string
+        if (stream.match(/^"/)) {
+            let escaped = false
+            while (!stream.eol()) {
+                if (escaped) {
+                    escaped = false
+                    stream.next()
+                    continue
+                }
+                const ch = stream.next()
+                if (ch === '\\') escaped = true
+                else if (ch === '"') break
+            }
+            return 'string'
+        }
+        // @directives (@startuml, @enduml, etc.)
+        if (stream.match(/^@\w+/)) return 'meta'
+        // Skip whitespace
+        if (stream.eatSpace()) return null
+        // Arrows and connectors
+        if (stream.match(/^->>?|<-<?|-->>?|<<--?|<-?>/)) return 'keyword'
+        // Keywords (participant, actor, as, title, etc.)
+        if (stream.match(/^(participant|actor|as|title|autonumber|left|right|of|over|activate|deactivate|destroy|create|group|opt|alt|else|loop|par|end|note|legend|skinparam|start|stop|if|endif|elseif|while|endwhile|repeat|until|switch|case|endswitch|class|interface|enum|package|namespace|abstract|static|extends|implements)\b/i)) return 'keyword'
+        // Any other character (identifier, punctuation, etc.)
+        stream.next()
+        return null
+    },
+})
+
+export const plantumlLanguage = plantumlParser