regular-grammar - npm Package Compare versions

Comparing version 0.1.1 to 0.1.2-b

package.json

 {
     "name": "regular-grammar",
-    "version": "0.1.1",
+    "version": "0.1.2b",
     "description": "A simple regular grammar/parser generator",
@@ -5,0 +5,0 @@ "author": "Victor Grishchenko <[e-mail]>",

src/Grammar.js

@@ -49,3 +49,18 @@ /** The class generates regex _parsers for simple regular languages
             const formula = m[0];
-            const marker = m[2] ? JSON.parse(m[2]) : (m[1] || '');
+            let marker;
+            if ( !m[1] ) {
+                marker = '';
+            } else if (m[1].length===1) {
+                marker = m[1];
+            } else if (m[1][0]==='"') {
+                marker = JSON.parse(m[1]);
+            } else if (m[1][0]==='[') {
+                const re_mrk = new RegExp(m[1]);
+                marker = re_mrk.source;
+            } else if (m[1][0]==='/') {
+                const re_mrk = new RegExp(m[2]);
+                marker = re_mrk.source;
+            } else {
+                throw new Error('marker parse fail: '+m);
+            }
             const rule = m[3] || 'EMPTY';
@@ -80,3 +95,3 @@ const quantifier = m[4] || '';
         if (this._splitters[t.formula]) { return this._splitters[t.formula]; }
-        let p = (t.marker.length === 1 ? '\\' : '') + t.marker;
+        let p = (t.marker.length === 1 ? '\\' : '') + t.marker + '\\s*';
         p += '(' + this.pattern(t.rule) + ')';
@@ -142,3 +157,2 @@ const splitter = new RegExp(p, 'g');
         // TODO test: no capture group for bodyless triplets
-        //console.log(rule_name, joined)
 
@@ -187,3 +201,3 @@ this._patterns[rule_name] = joined;
 
-Grammar.TRIPLET_RE = /(\[\S*?\]|("(?:\\.|[^"])*")|[^A-Za-z0-9\s])?([A-Z][A-Z0-9_]*)?([*+?|]|{\d+(?:,\d+)?})?/g;
+Grammar.TRIPLET_RE = /(\[\S*?\]|"(?:\\.|[^"])*"|\/([^\/\s]+)\/|[^A-Za-z0-9\s])?([A-Z][A-Z0-9_]*)?([*+?|]|{\d+(?:,\d+)?})?/g;
 
@@ -190,0 +204,0 @@ function sterilize (pattern) {

test/01_grammar.js

@@ -16,3 +16,3 @@ const tap = require('tape');
 
-    RUN: 'INT /BASE? [+%-]INT?',
+    RUN: 'INT /BASE? /[+%-]/INT?',
     CONSTRUN: 'CONSTANT /BASE?',
@@ -39,2 +39,3 @@ IDS: 'RUN ,RUN*',
             formula: 'INT',
+            empty: false,
             marker: '',
@@ -47,2 +48,3 @@ rule: 'INT',
             formula: '[+%-]INT?',
+            empty: false,
             marker: '[+%-]',
@@ -49,0 +51,0 @@ rule: 'INT',

test/03_examples.js

@@ -47,4 +47,3 @@ const tape = require('tape');
     tap.ok(is);
-    tap.equals(parts[1].length, entry_count);
-    console.log(parts);
+    tap.equals(parts[1].length, entry_count-1);
 
@@ -51,0 +50,0 @@ tap.end();

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51649

increased by1.04%

Lines of code

451

increased by3.44%

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