experimental linters

commit 5b31740d967bb61bfed6a2338d07e8fc6e4957b3
Author: Hans Pagel <hans.pagel@ueber.io>
Date:   Tue Jan 19 14:48:00 2021 +0100

    refactoring, disable TS checks for now

commit 6fcc5082287ba4dd5457b8ea6e6d8300efaaafb6
Author: Hans Pagel <hans.pagel@ueber.io>
Date:   Tue Jan 19 14:42:14 2021 +0100

    move everything to a new experiments structure

commit 2b5f394ad4c916f7ac364fa03d05e2f4311e9b1d
Author: Hans Pagel <hans.pagel@ueber.io>
Date:   Mon Jan 18 20:22:35 2021 +0100

    refactoring

commit 91a3747adca114fbce0972a2a2efa751e94d4ea4
Author: Hans Pagel <hans.pagel@ueber.io>
Date:   Mon Jan 18 17:48:59 2021 +0100

    refactoring

commit 4550fa70059060b6702425970ba33bcf6a0f3e66
Author: Hans Pagel <hans.pagel@ueber.io>
Date:   Mon Jan 18 17:37:43 2021 +0100

    load plugins in the example

commit a7087af14044673c587c233c44a5e767ff23b160
Author: Hans Pagel <hans.pagel@ueber.io>
Date:   Mon Jan 18 17:31:47 2021 +0100

    init new linter plugin

docs/src/demos/Experiments/Linter/extension/plugins/BadWords.ts

@@ -0,0 +1,26 @@
+// @ts-nocheck
+import LinterPlugin from '../LinterPlugin'
+
+export class BadWords extends LinterPlugin {
+
+  public regex = /\b(obviously|clearly|evidently|simply)\b/ig
+
+  scan() {
+    this.doc.descendants((node: any, position: any) => {
+      if (!node.isText) {
+        return
+      }
+
+      const matches = this.regex.exec(node.text)
+
+      if (matches) {
+        this.record(
+          `Try not to say '${matches[0]}'`,
+          position + matches.index, position + matches.index + matches[0].length,
+        )
+      }
+    })
+
+    return this
+  }
+}

docs/src/demos/Experiments/Linter/extension/plugins/HeadingLevel.ts

@@ -0,0 +1,30 @@
+// @ts-nocheck
+import LinterPlugin from '../LinterPlugin'
+
+export class HeadingLevel extends LinterPlugin {
+  fixHeader(level) {
+    return function ({ state, dispatch }) {
+      dispatch(state.tr.setNodeMarkup(this.from - 1, null, { level }))
+    }
+  }
+
+  scan() {
+    let lastHeadLevel = null
+
+    this.doc.descendants((node, position) => {
+      if (node.type.name == 'heading') {
+        // Check whether heading levels fit under the current level
+        const { level } = node.attrs
+
+        if (lastHeadLevel != null && level > lastHeadLevel + 1) {
+          this.record(`Heading too small (${level} under ${lastHeadLevel})`,
+            position + 1, position + 1 + node.content.size,
+            this.fixHeader(lastHeadLevel + 1))
+        }
+        lastHeadLevel = level
+      }
+    })
+
+    return this
+  }
+}

docs/src/demos/Experiments/Linter/extension/plugins/Punctuation.ts

@@ -0,0 +1,37 @@
+// @ts-nocheck
+import LinterPlugin from '../LinterPlugin'
+
+export class Punctuation extends LinterPlugin {
+  public regex = / ([,.!?:]) ?/g
+
+  fix(replacement: any) {
+    return function ({ state, dispatch }) {
+      dispatch(
+        state.tr.replaceWith(
+          this.from, this.to,
+          state.schema.text(replacement),
+        ),
+      )
+    }
+  }
+
+  scan() {
+    this.doc.descendants((node, position) => {
+      if (!node.isText) {
+        return
+      }
+
+      const matches = this.regex.exec(node.text)
+
+      if (matches) {
+        this.record(
+          'Suspicious spacing around punctuation',
+          position + matches.index, position + matches.index + matches[0].length,
+          this.fix(`${matches[1]} `),
+        )
+      }
+    })
+
+    return this
+  }
+}