From 7f36cfacab765dc0b2d1fc053c4d7151f355004f Mon Sep 17 00:00:00 2001
From: Sergey Belozyorcev <nextdrift@gmail.com>
Date: Tue, 12 Jul 2016 21:53:00 +0300
Subject: [PATCH] Merge from 'pobems v0.3.1'

---
 lib/index.js      | 66 +++++++++++++++++++++++++++++++++--------------
 test/lib/index.js | 49 +++++++++++++++++++++++++++++++++++
 2 files changed, 95 insertions(+), 20 deletions(-)

diff --git a/lib/index.js b/lib/index.js
index 6f17e3a..4f8c0cb 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -3,32 +3,32 @@ import postcss from 'postcss';
 const modDelim = process.env.REBEM_MOD_DELIM || '_';
 const elemDelim = process.env.REBEM_ELEM_DELIM || '__';
 
-function buildSelector (block) {
+function buildSelector (ctx, mod) {
     let selector = '.';
 
-    if (block.blockName) {
-        selector += block.blockName;
+    if (ctx.blockName) {
+        selector += ctx.blockName;
     }
-    if (block.elemName) {
-        selector += elemDelim + block.elemName;
+    if (ctx.elemName) {
+        selector += elemDelim + ctx.elemName;
     }
-    if (block.modName) {
-        selector += modDelim + block.modName;
+    if (mod) {
+        selector += modDelim + mod;
     }
 
     return selector;
 }
 
-export default postcss.plugin('rebem-css', () => (css) => {
+export default postcss.plugin('pobems', () => (css) => {
     css.walkRules((rule) => {
         rule.selector = rule.selector
             .replace(/(:block\(.+)/g, (match, rawSelector) => {
 
                 // ":block(b):mod(m v) div :block(b2)" -> [":block(b):mod(m v)", "div", "block(b2)"]
-                const groups = rawSelector.split(/\s+(?!\w+\))/gi);
+                const groups = rawSelector.split(/\s+(?![\w\s->'",]+\))/gi);
 
-                const re = /:(block|elem|mod)\(([\w-\s]+)\)(\s+)?/g;
-                const blockDecl = { blockName: false, elemName: false, modName: false };
+                const re = /(:+)([\w-]+)(\((['",\w->\s]+)\))?/g;
+                const ctx = { blockName: false, elemName: false };
 
                 // Convert all groups to CSS selectors
                 // :block(b):mod(m v) -> .b_m_v
@@ -43,25 +43,51 @@ export default postcss.plugin('rebem-css', () => (css) => {
 
                     let selector = '';
                     let mathes = null;
+                    let requiredBuild = false;
 
                     while ((mathes = re.exec(group)) !== null) {
+                        const _spliter = 1;
+                        const _tag = 2;
+                        const _rawValue = 3;
+                        const _value = 4;
+                        const spliter = mathes[_spliter];
+                        const tag = mathes[_tag];
+                        const rawValue = mathes[_rawValue];
+                        const value = mathes[_value] ?
+                          mathes[_value].replace(/([\(\)'"])/g, '').trim() : false;
+
+
+                        if (tag === 'block') {
+                            requiredBuild = true;
+                            ctx.blockName = value;
+                            continue;
+                        }
 
-                        if (mathes[1] === 'block') {
-                            blockDecl.blockName = mathes[2];
+                        if (tag === 'elem') {
+                            requiredBuild = true;
+                            ctx.elemName = value;
+                            continue;
                         }
 
-                        if (mathes[1] === 'elem') {
-                            blockDecl.elemName = mathes[2];
+                        if (tag === 'mod') {
+                            requiredBuild = false;
+                            const mod = value.replace(/(\s?->\s?|,\s?|\s+?)/g, modDelim);
+
+                            selector += buildSelector(ctx, mod);
+                            continue;
                         }
 
-                        if (mathes[1] === 'mod') {
-                            blockDecl.modName = mathes[2].replace(' ', modDelim);
-                            selector += buildSelector(blockDecl);
+                        // For pseudo-classes
+                        selector += requiredBuild ? buildSelector(ctx) : '';
+                        selector += spliter + tag;
+                        if (rawValue) {
+                            selector += rawValue;
                         }
 
+                        requiredBuild = false;
                     }
-                    if (!blockDecl.modName) {
-                        selector += buildSelector(blockDecl);
+                    if (requiredBuild) {
+                        selector += buildSelector(ctx);
                     }
 
                     result.push(selector);
diff --git a/test/lib/index.js b/test/lib/index.js
index 986e38f..cae7917 100644
--- a/test/lib/index.js
+++ b/test/lib/index.js
@@ -27,6 +27,27 @@ describe('plugin', () => {
             );
         });
 
+        it('block name with double quotes', () => {
+            test(
+                ':block("block1") :block("block2")',
+                '.block1 .block2'
+            );
+        });
+
+        it('block name with single quotes', () => {
+            test(
+                ':block(\'block1\') :block(\'block2\')',
+                '.block1 .block2'
+            );
+        });
+
+        it('with pseudo classes', () => {
+            test(
+                ':root :block(block1):mod(m v):hover::before :block(block1):nth-of-type(2)',
+                ':root .block1_m_v:hover::before .block1:nth-of-type(2)'
+            );
+        });
+
         it('with other tags', () => {
             test(
                 ':block(block1) div :block(bl2) img',
@@ -81,6 +102,13 @@ describe('plugin', () => {
                 );
             });
 
+            it('multiple blocks mods with delimeter "-" in value', () => {
+                test(
+                    ':block(block):mod(mod val-1) :block(block):elem(icon)',
+                    '.block_mod_val-1 .block__icon'
+                );
+            });
+
             it('block mod', () => {
                 test(
                     ':block(block):mod(mod val)',
@@ -88,12 +116,33 @@ describe('plugin', () => {
                 );
             });
 
+            it('block mod with double quotes', () => {
+                test(
+                    ':block("block1"):mod("mod", "val")',
+                    '.block1_mod_val'
+                );
+            });
+
+            it('block mod with single quotes', () => {
+                test(
+                    ':block(\'block1\'):mod(\'mod\',\'val\')',
+                    '.block1_mod_val'
+                );
+            });
+
             it('multiple blocks mods', () => {
                 test(
                     ':block(block1):mod(mod1 val1) :block(block2):mod(mod2 val2)',
                     '.block1_mod1_val1 .block2_mod2_val2'
                 );
             });
+
+            it('mod val with delimeter "->"', () => {
+                test(
+                    ':block(block1):mod(mod1 -> val1) :block(block2):mod("mod2" -> "val2")',
+                    '.block1_mod1_val1 .block2_mod2_val2'
+                );
+            });
         });
 
         describe('elem', () => {