Add support for let <variable> be <expression>

Fixes #186
RockstarLang · Mar 24, 2019 · 7a59c3a · 7a59c3a
1 parent 7257682
commit 7a59c3a
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Showing 7 changed files with 300 additions and 151 deletions.
diff --git a/satriani/package.json b/satriani/package.json
@@ -21,7 +21,7 @@
     "deploy": "node_modules/gh-pages/bin/gh-pages.js -u 'CircleCI <circleci@codewithrockstar.com>' -r git@github.com:RockstarLang/codewithrockstar.com.git --add --src docs/js/satriani.js -m 'Updated js/satriani.js from main repo' -b master -d deploy",
     "serve": "python -m SimpleHTTPServer 8000",
     "pegjs": "node node_modules/pegjs/bin/pegjs -o satriani.parser.js rockstar.peg",
-    "test": "mocha test/*.js"
+    "test": "yarn pegjs && mocha test/*.js"
   },
   "repository": {
     "type": "git",

diff --git a/satriani/rockstar.peg b/satriani/rockstar.peg
@@ -256,6 +256,8 @@ assignment 	= v:variable ('\'s' / (_* ('=' / 'is 'i / 'was 'i / 'are 'i / 'were
                 { return { assign: { variable: v, expression: e} }; }
               / 'put'i _+ e:expression _+ 'into'i _+ v:variable
         { return { assign: { variable: v, expression: e} }; }
+    / 'let'i _+ v:variable _+ 'be'i _+ e:expression
+			{ return { assign: { variable: v, expression: e} }; }
 
 poetic_string = s:$[^\n]*
   { return { string: s} }