italic && bold declarative

index.js

@@ -7,18 +7,19 @@ const syntax = {
     bold: {
         paired: true,
         recursive: true,
-        startRegexp: /\s\*\*\S.*/,
+        startRegexp: /\*\*\S.*/,
         endRegexp:   /\S\*\*\s/,
         content: {
             start: {
                 point: 'start',
-                offset: 3
+                offset: 2
             },
             end: {
                 point: 'end',
                 offset: 1
             }
         },
+        begin: 0,
         forward: {
             point: 'endEnd', //start, startEnd, end, endEnd
             offset: -1
@@ -27,7 +28,7 @@ const syntax = {
     bold2: {
         paired: true,
         recursive: true,
-        startRegexp:  /__\S.*/,
+        startRegexp:  /\s__\S.*/,
         endRegexp:    /\S__\s/,
         content: {
             start: {
@@ -39,6 +40,7 @@ const syntax = {
                 offset: 1
             }
         },
+        begin: 1,
         forward: {
             point: 'endEnd', //start, startEnd, end, endEnd
             offset: -1
@@ -47,7 +49,7 @@ const syntax = {
     italic: {
         paired: true,
         recursive: true,
-        startRegexp: /\s\*\S.*/,
+        startRegexp: /\*\S.*/,
         endRegexp:   /\S\*\s/,
         content: {
             start: {
@@ -59,6 +61,7 @@ const syntax = {
                 offset: 1
             }
         },
+        begin: 0,
         forward: {
             point: 'endEnd', //start, startEnd, end, endEnd
             offset: -1
@@ -67,7 +70,7 @@ const syntax = {
     italic2: {
         paired: true,
         recursive: true,
-        startRegexp:  /_\S.*/,
+        startRegexp:  /\s_\S.*/,
         endRegexp:   /\S_\s/,
         content: {
             start: {
@@ -79,6 +82,7 @@ const syntax = {
                 offset: 1
             }
         },
+        begin: 1,
         forward: {
             point: 'endEnd', //start, startEnd, end, endEnd
             offset: -1
@@ -89,14 +93,10 @@ const syntax = {
 function findNearest(md, mdTags){
     let nearest, nearestMatch = {index: Infinity};
     for (let [mdTag, {paired, 
-                        recursive, 
                         startRegexp, 
-                        endRegexp, 
-                        content: {start, 
-                                    end}, 
-                        forward}] of  Object.entries(mdTags)) {
+                        rexexp}] of  Object.entries(mdTags)) {
 
-        let match = md.match(startRegexp)
+        let match = md.match(startRegexp || regexp)
         if (match && match.index < nearestMatch.index){
             nearestMatch = match
             nearest = mdTag
@@ -105,10 +105,35 @@ function findNearest(md, mdTags){
     return [nearest, nearestMatch]
 }
 
+function cutNode(md, match, tagName, {paired, recursive, startRegexp, endRegexp, content: {start, end}, begin, forward}){
+    //if (paired){
+        //md.match()
+    //}
+}
+
 
 function buildAST(md, mdTags=syntax, tree=[], path=[]){
-    console.log(findNearest(md, mdTags))
+    const result = []
+    while(md){
+        const [nearest, nearestMatch] = findNearest(md, mdTags)
+        if (nearest){
+            const {begin} = mdTags[nearest]
+            if (nearestMatch.index){
+                result.push(md.slice(0, nearestMatch.index + begin))
+                md = md.slice(nearestMatch.index)
+            }
+            else {
+                console.log(nearestMatch)
+                break //to avoid infinite loop, add cutNode here
+            }
+        }
+        else {
+            result.push(md)
+            md = ''
+        }
+    }
+    return result
 }
 
-buildAST("I just __love__ __bold text__.	")
+console.log(buildAST("I just __love__ __bold text__.	"))