Improve things (#1)

fix: Handle negative numbers

Author: huacnlee

examples/example.csv

@@ -0,0 +1,4 @@
+name,city,state,zip,"latitude","longitude",signed
+Mcdonalds,"Los Angeles",CA,90001,33.973951,-118.248405,true
+Dennys,"New York",NY,10001,40.750634,-73.997177,true
+"Burger King",Chicago,IL,60601,41.884151,-87.622848,false

grammar.js

@@ -30,9 +30,9 @@ module.exports = grammar({
       $.float,
       $.integer,
     ),
-    integer: $ => /\d+/,
+    integer: $ => /-?\d+/,
     hex: $ => /0[xX][\da-fA-F]+/,
-    float: $ => /(0|[1-9]\d*)\.\d+/,
+    float: $ => /-?(0|[1-9]\d*)\.\d+/,
     string: $ => choice(
       seq($.quote, $.quote),
       seq($.quote, $.escaped, $.quote),

package.json

@@ -3,16 +3,13 @@
   "version": "0.1.0",
   "description": "CSV grammar for tree-sitter",
   "main": "bindings/node",
-  "keywords": [
-    "parser",
-    "tree-sitter",
-    "csv"
-  ],
+  "keywords": ["parser", "tree-sitter", "csv"],
   "author": "Arnau Siches",
   "license": "MIT",
   "scripts": {
     "build": "tree-sitter generate && node-gyp build",
-    "test": "tree-sitter test"
+    "test": "tree-sitter test",
+    "dev": "npm run build && tree-sitter highlight examples/*.csv"
   },
   "dependencies": {
     "nan": "^2.17.0",
@@ -24,9 +21,7 @@
   "tree-sitter": [
     {
       "scope": "source.csv",
-      "file-types": [
-        "csv"
-      ]
+      "file-types": ["csv"]
     }
   ]
 }

queries/highlights.scm

@@ -9,12 +9,11 @@
   (null)
   (na)
 ] @constant.builtin
+
 (string) @string
 
 (escape_sequence) @constant.character.escape
 
-
 ; Punctuation
 (delimiter) @punctuation.delimiter
 (quote) @punctuation.bracket
-

src/grammar.json

@@ -120,33 +120,50 @@
       "value": "true|TRUE|false|FALSE"
     },
     "_number": {
-      "type": "CHOICE",
+      "type": "SEQ",
       "members": [
         {
-          "type": "SYMBOL",
-          "name": "hex"
-        },
-        {
-          "type": "SYMBOL",
-          "name": "float"
+          "type": "CHOICE",
+          "members": [
+            {
+              "type": "STRING",
+              "value": "-"
+            },
+            {
+              "type": "BLANK"
+            }
+          ]
         },
         {
-          "type": "SYMBOL",
-          "name": "integer"
+          "type": "CHOICE",
+          "members": [
+            {
+              "type": "SYMBOL",
+              "name": "hex"
+            },
+            {
+              "type": "SYMBOL",
+              "name": "float"
+            },
+            {
+              "type": "SYMBOL",
+              "name": "integer"
+            }
+          ]
         }
       ]
     },
     "integer": {
       "type": "PATTERN",
-      "value": "\\d+"
+      "value": "-?\\d+"
     },
     "hex": {
       "type": "PATTERN",
       "value": "0[xX][\\da-fA-F]+"
     },
     "float": {
       "type": "PATTERN",
-      "value": "(0|[1-9]\\d*)\\.\\d+"
+      "value": "-?(0|[1-9]\\d*)\\.\\d+"
     },
     "string": {
       "type": "CHOICE",

src/node-types.json

@@ -114,6 +114,10 @@
     "type": "\r\n",
     "named": false
   },
+  {
+    "type": "-",
+    "named": false
+  },
   {
     "type": "boolean",
     "named": true