Merge pull request #104 from abirchall/style_lists

This is good, sorry it took so long to merge!

Author: iamacup

src/lib/parser.js

@@ -2,6 +2,7 @@ import tokensToAST from './util/tokensToAST';
 import {stringToTokens} from './util/stringToTokens';
 import {cleanupTokens} from './util/cleanupTokens';
 import groupTextTokens from './util/groupTextTokens';
+import omitListItemParagraph from './util/omitListItemParagraph';
 
 /**
  *
@@ -18,6 +19,7 @@ export default function parser(source, renderer, markdownIt) {
   let tokens = stringToTokens(source, markdownIt);
   tokens = cleanupTokens(tokens);
   tokens = groupTextTokens(tokens);
+  tokens = omitListItemParagraph(tokens);
 
   const astTree = tokensToAST(tokens);
 

src/lib/styles.js

@@ -68,28 +68,6 @@ export const styles = {
   bullet_list_icon: {
     marginLeft: 10,
     marginRight: 10,
-    ...Platform.select({
-      android: {
-        marginTop: 5,
-      },
-      ios: {
-        marginTop: 0,
-      },
-      default: {
-        marginTop: 0,
-      },
-    }),
-    ...Platform.select({
-      ios: {
-        lineHeight: 36,
-      },
-      android: {
-        lineHeight: 30,
-      },
-      default: {
-        lineHeight: 36,
-      },
-    }),
   },
   // @pseudo class, does not have a unique render rule
   bullet_list_content: {
@@ -100,25 +78,6 @@ export const styles = {
   ordered_list_icon: {
     marginLeft: 10,
     marginRight: 10,
-    ...Platform.select({
-      android: {
-        marginTop: 4,
-      },
-      default: {
-        marginTop: 0,
-      },
-    }),
-    ...Platform.select({
-      ios: {
-        lineHeight: 36,
-      },
-      android: {
-        lineHeight: 30,
-      },
-      default: {
-        lineHeight: 36,
-      },
-    }),
   },
   // @pseudo class, does not have a unique render rule
   ordered_list_content: {

src/lib/util/omitListItemParagraph.js

@@ -0,0 +1,29 @@
+export default function omitListItemParagraph(tokens) {
+  // used to ensure that we remove the correct ending paragraph token
+  let depth = null;
+  return tokens.filter((token, index) => {
+    // update depth if we've already removed a starting paragraph token
+    if (depth !== null) {
+      depth = depth + token.nesting;
+    }
+
+    // check for a list_item token followed by paragraph token (to remove)
+    if (token.type === 'list_item' && token.nesting === 1 && depth === null) {
+      const next = index + 1 in tokens ? tokens[index + 1] : null;
+      if (next && next.type === 'paragraph' && next.nesting === 1) {
+        depth = 0;
+        return true;
+      }
+    } else if (token.type === 'paragraph') {
+      if (token.nesting === 1 && depth === 1) {
+        // remove the paragraph token immediately after the list_item token
+        return false;
+      } else if (token.nesting === -1 && depth === 0) {
+        // remove the ending paragraph token; reset depth
+        depth = null;
+        return false;
+      }
+    }
+    return true;
+  });
+}