diff --git a/CHANGELOG.md b/CHANGELOG.md
index c1c8d15..0744574 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@
 - Added `renderInline()` and `parseInline()` methods.
 - Added abbreviations support.
 - Fixed problem with tables, having single column.
-- Changed internal api, related to Ruler use.
+- Changed internal api (ruler, inline, block classes).
 - Removed typographer chain (rules moved to `core`).
 - Removed all typographer options. Quote chars defs moved to `options.quotes`.
 
diff --git a/lib/parser_block.js b/lib/parser_block.js
index 4e8ef7a..2c58849 100644
--- a/lib/parser_block.js
+++ b/lib/parser_block.js
@@ -5,7 +5,7 @@
 
 
 var Ruler           = require('./ruler');
-var State           = require('./rules_block/state_block');
+var StateBlock      = require('./rules_block/state_block');
 
 
 var _rules = [
@@ -88,7 +88,7 @@ var TABS_SCAN_RE = /[\n\t]/g;
 var NEWLINES_RE  = /\r[\n\u0085]|[\u2424\u2028\u0085]/g;
 var SPACES_RE    = /\u00a0/g;
 
-ParserBlock.prototype.parse = function (src, options, env) {
+ParserBlock.prototype.parse = function (src, options, env, outTokens) {
   var state, lineStart = 0, lastTabPos = 0;
 
   if (!src) { return []; }
@@ -115,28 +115,25 @@ ParserBlock.prototype.parse = function (src, options, env) {
   }
 
   if (env.inlineMode) {
-    return [
-      {
-        type: 'inline',
-        content: src.replace(/\n/g, ' ').trim(),
-        level: 0,
-        lines: [ 0, 1 ],
-        children: []
-      }
-    ];
-  }
-
-  state = new State(
-    src,
-    this,
-    [],
-    options,
-    env
-  );
+    outTokens.push({
+      type: 'inline',
+      content: src.replace(/\n/g, ' ').trim(),
+      level: 0,
+      lines: [ 0, 1 ],
+      children: []
+    });
 
-  this.tokenize(state, state.line, state.lineMax);
+  } else {
+    state = new StateBlock(
+      src,
+      this,
+      options,
+      env,
+      outTokens
+    );
 
-  return state.tokens;
+    this.tokenize(state, state.line, state.lineMax);
+  }
 };
 
 
diff --git a/lib/parser_inline.js b/lib/parser_inline.js
index 6906a43..ad99182 100644
--- a/lib/parser_inline.js
+++ b/lib/parser_inline.js
@@ -111,17 +111,15 @@ ParserInline.prototype.tokenize = function (state) {
   if (state.pending) {
     state.pushPending();
   }
-
-  return state.tokens;
 };
 
 
 // Parse input string.
 //
-ParserInline.prototype.parse = function (str, options, env) {
-  var state = new StateInline(str, this, options, env);
+ParserInline.prototype.parse = function (str, options, env, outTokens) {
+  var state = new StateInline(str, this, options, env, outTokens);
 
-  return this.tokenize(state);
+  this.tokenize(state);
 };
 
 
diff --git a/lib/rules_block/state_block.js b/lib/rules_block/state_block.js
index 39e8e4e..3dabd50 100644
--- a/lib/rules_block/state_block.js
+++ b/lib/rules_block/state_block.js
@@ -3,7 +3,7 @@
 'use strict';
 
 
-function StateBlock(src, parser, tokens, options, env) {
+function StateBlock(src, parser, options, env, tokens) {
   var ch, s, start, pos, len, indent, indent_found;
 
   this.src = src;
diff --git a/lib/rules_core/abbr.js b/lib/rules_core/abbr.js
index 1ce2976..9ec9467 100644
--- a/lib/rules_core/abbr.js
+++ b/lib/rules_core/abbr.js
@@ -8,7 +8,7 @@ var StateInline    = require('../rules_inline/state_inline');
 var parseLinkLabel = require('../helpers/parse_link_label');
 
 
-function parseAbbr(str, parser, options, env) {
+function parseAbbr(str, parserInline, options, env) {
   var state, labelEnd, pos, max, label, title;
 
   if (str.charCodeAt(0) !== 0x2A/* * */) { return -1; }
@@ -16,7 +16,7 @@ function parseAbbr(str, parser, options, env) {
 
   if (str.indexOf(']:') === -1) { return -1; }
 
-  state = new StateInline(str, parser, options, env);
+  state = new StateInline(str, parserInline, options, env, []);
   labelEnd = parseLinkLabel(state, 1);
 
   if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; }
diff --git a/lib/rules_core/block.js b/lib/rules_core/block.js
index 01769bc..78134eb 100644
--- a/lib/rules_core/block.js
+++ b/lib/rules_core/block.js
@@ -1,6 +1,5 @@
 'use strict';
 
 module.exports = function block(state) {
-  var tokens = state.block.parse(state.src, state.options, state.env);
-  state.tokens = state.tokens.concat(tokens);
+  state.block.parse(state.src, state.options, state.env, state.tokens);
 };
diff --git a/lib/rules_core/inline.js b/lib/rules_core/inline.js
index a019de9..8b2280b 100644
--- a/lib/rules_core/inline.js
+++ b/lib/rules_core/inline.js
@@ -7,7 +7,7 @@ module.exports = function inline(state) {
   for (i = 0, l = tokens.length; i < l; i++) {
     tok = tokens[i];
     if (tok.type === 'inline') {
-      tok.children = state.inline.parse(tok.content, state.options, state.env);
+      state.inline.parse(tok.content, state.options, state.env, tok.children);
     }
   }
 };
diff --git a/lib/rules_core/references.js b/lib/rules_core/references.js
index eaa3313..a01336e 100644
--- a/lib/rules_core/references.js
+++ b/lib/rules_core/references.js
@@ -15,7 +15,7 @@ function parseReference(str, parser, options, env) {
 
   if (str.indexOf(']:') === -1) { return -1; }
 
-  state = new StateInline(str, parser, options, env);
+  state = new StateInline(str, parser, options, env, []);
   labelEnd = parseLinkLabel(state, 0);
 
   if (labelEnd < 0 || str.charCodeAt(labelEnd + 1) !== 0x3A/* : */) { return -1; }
diff --git a/lib/rules_inline/state_inline.js b/lib/rules_inline/state_inline.js
index 5a85bb0..9d134ad 100644
--- a/lib/rules_inline/state_inline.js
+++ b/lib/rules_inline/state_inline.js
@@ -3,12 +3,12 @@
 'use strict';
 
 
-function StateInline(src, parser, options, env) {
+function StateInline(src, parserInline, options, env, outTokens) {
   this.src = src;
   this.env = env;
   this.options = options;
-  this.parser = parser;
-  this.tokens = [];
+  this.parser = parserInline;
+  this.tokens = outTokens;
   this.pos = 0;
   this.posMax = this.src.length;
   this.level = 0;