Merge pull request #64 from marclipovsky/feature/float

Fix #29: Add incrementFloat and decrementFloat commands for floating …

Author: Marc Lipovsky

README.md

@@ -40,6 +40,8 @@ Number related functions:
 1. duplicate and increment - duplicates selection and increments all numbers
 1. duplicate and decrement - duplicates selection and decrements all numbers
 1. sequence - replaces numbers with a sequence starting from the first number
+1. incrementFloat - increases all floating point numbers in the selection by 1
+1. decrementFloat - decreases all floating point numbers in the selection by 1
 
 Additional utility commands:
 

content.txt

@@ -51,3 +51,5 @@ Test123!
 No quotes at all
 'It's'
 "My name's %20 Minalike!"
+Lorem -1.234 ipsum 5.678 dolor sit amet, consectetur adipiscing.
+Sed do 9.876 eiusmod -4.321 tempor incididunt labore.

package.json

@@ -180,6 +180,16 @@
         "category": "String Manipulation",
         "command": "string-manipulation.duplicateAndDecrement"
       },
+      {
+        "title": "Increment all floats",
+        "category": "String Manipulation",
+        "command": "string-manipulation.incrementFloat"
+      },
+      {
+        "title": "Decrement all floats",
+        "category": "String Manipulation",
+        "command": "string-manipulation.decrementFloat"
+      },
       {
         "title": "Sequence all numbers from first number",
         "category": "String Manipulation",
@@ -329,6 +339,14 @@
           "command": "string-manipulation.duplicateAndDecrement",
           "group": "7_modification"
         },
+        {
+          "command": "string-manipulation.incrementFloat",
+          "group": "7_modification"
+        },
+        {
+          "command": "string-manipulation.decrementFloat",
+          "group": "7_modification"
+        },
         {
           "command": "string-manipulation.sequence",
           "group": "7_modification"

src/commands/increment-decrement.ts

@@ -7,6 +7,22 @@ export const increment: CommandFunction = (str: string) =>
 export const decrement: CommandFunction = (str: string) =>
   str.replace(/-?\d+/g, (n) => String(Number(n) - 1));
 
+export const incrementFloat: CommandFunction = (str: string) => {
+  return str.replace(/-?\d+\.\d+/g, (n) => {
+    let decimalPlaces = (n.split(".")[1] || "").length;
+    let factor = Math.pow(10, decimalPlaces);
+    return String((Number(n) * factor + 1) / factor);
+  });
+};
+
+export const decrementFloat: CommandFunction = (str: string) => {
+  return str.replace(/-?\d+\.\d+/g, (n) => {
+    let decimalPlaces = (n.split(".")[1] || "").length;
+    let factor = Math.pow(10, decimalPlaces);
+    return String((Number(n) * factor - 1) / factor);
+  });
+};
+
 // These functions are placeholders as the actual implementation is in the stringFunction
 // They're kept here for type consistency in the command registry
 export const duplicateAndIncrement: CommandFunction = () => "";

src/commands/index.ts

@@ -13,6 +13,8 @@ import {
   duplicateAndDecrement,
   handleDuplicateAndIncrementDecrement,
   updateSelectionsAfterDuplicate,
+  incrementFloat,
+  decrementFloat,
 } from "./increment-decrement";
 import { sequence } from "./sequence";
 import { randomCase } from "./random-case";
@@ -49,6 +51,8 @@ export const commandNameFunctionMap: CommandRegistry = {
   decrement,
   duplicateAndIncrement,
   duplicateAndDecrement,
+  incrementFloat,
+  decrementFloat,
   sequence,
   utf8ToChar,
   charToUtf8,

src/commands/types.ts

@@ -23,6 +23,8 @@ export const numberFunctionNames = [
   "sequence",
   "duplicateAndIncrement",
   "duplicateAndDecrement",
+  "incrementFloat",
+  "decrementFloat",
 ];
 
 export const functionNamesWithArgument = [

src/test/extension.test.ts

@@ -455,6 +455,40 @@ suite("Extension Test Suite", () => {
       );
     });
 
+    test("incrementFloat increases all floats in the selection by 1", async () => {
+      const [output] = await getTextForSelectionsByCommand(
+        "string-manipulation.incrementFloat",
+        [
+          {
+            start: { line: 53, character: 0 },
+            end: { line: 53, character: 64 },
+          },
+        ]
+      );
+
+      assert.strictEqual(
+        output /* Lorem -1.234 ipsum 5.678 dolor sit amet, consectetur adipiscing. */,
+        "Lorem -1.233 ipsum 5.679 dolor sit amet, consectetur adipiscing."
+      );
+    });
+
+    test("decrementFloat decreases all floats in the selection by 1", async () => {
+      const [output] = await getTextForSelectionsByCommand(
+        "string-manipulation.decrementFloat",
+        [
+          {
+            start: { line: 54, character: 0 },
+            end: { line: 54, character: 53 },
+          },
+        ]
+      );
+
+      assert.strictEqual(
+        output /* Sed do 9.876 eiusmod -4.321 tempor incididunt labore. */,
+        "Sed do 9.875 eiusmod -4.322 tempor incididunt labore."
+      );
+    });
+
     test("duplicateAndIncrement duplicates selection and increments numbers in duplicate", async () => {
       const [output] = await getTextForSelectionsByCommand(
         "string-manipulation.duplicateAndIncrement",