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Merge 5366b0d0ccd4ba620da1e4375b1e30058660d760 into 4290ea753912378913b1f3f54e0fc5720afeda5d

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Oliver Mitchell 2026-08-10 00:23:24 -07:00 committed by GitHub
commit 0a608808c1
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2 changed files with 83 additions and 12 deletions
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24
src/core/operations/PadLines.mjs
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@ -19,7 +19,7 @@ class PadLines extends Operation {
this.name = "Pad lines";
this.module = "Default";
this.description = "Add the specified number of the specified character to the beginning or end of each line";
this.description = "Add the specified character to the start or end of each line. Padding can use either a fixed character count or a target final line length.";
this.inputType = "string";
this.outputType = "string";
this.args = [
@ -37,6 +37,11 @@ class PadLines extends Operation {
"name": "Character",
"type": "binaryShortString",
"value": " "
},
{
"name": "Mode",
"type": "option",
"value": ["Fixed Count", "Target Length"]
}
];
}
@ -47,22 +52,21 @@ class PadLines extends Operation {
* @returns {string}
*/
run(input, args) {
const [position, len, chr] = args,
const [position, len, chr, mode] = args,
lines = input.split("\n");
let output = "",
i = 0;
for (let i = 0; i < lines.length; i++) {
const line = lines[i];
const targetLength = mode === "Fixed Count" ? line.length + len : len;
if (position === "Start") {
for (i = 0; i < lines.length; i++) {
output += lines[i].padStart(lines[i].length+len, chr) + "\n";
}
lines[i] = line.padStart(targetLength, chr);
} else if (position === "End") {
for (i = 0; i < lines.length; i++) {
output += lines[i].padEnd(lines[i].length+len, chr) + "\n";
lines[i] = line.padEnd(targetLength, chr);
}
}
return output.slice(0, output.length-1);
return lines.join("\n");
}
}

67
tests/operations/tests/PadLines.mjs Normal file
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@ -0,0 +1,67 @@
/**
* Pad Lines tests.
*
* @author oliver-mitchell [oliver@polymerlabs.dev]
*
* @copyright Crown Copyright 2026
* @license Apache-2.0
*/
import TestRegister from "../../lib/TestRegister.mjs";
TestRegister.addTests([
{
name: "Can pad Lines adds the specified number of characters to the start.",
input: "ABCD\nEF",
expectedOutput: `--ABCD\n--EF`,
recipeConfig: [
{
op: "Pad Lines",
args: ["Start", 2, "-", "Fixed Count"], // [Position, Length, Character, Mode]
},
],
},
{
name: "Can pad lines adds the specified number of characters to the start.",
input: "ABCD\nEF",
expectedOutput: `--ABCD\n--EF`,
recipeConfig: [
{
op: "Pad Lines",
args: ["Start", 2, "-", "Fixed Count"], // [Position, Length, Character, Mode]
},
],
},
{
name: "Can pad lines adds the specified number of characters to the end.",
input: "ABCD\nEF",
expectedOutput: `ABCD--\nEF--`,
recipeConfig: [
{
op: "Pad Lines",
args: ["End", 2, "-", "Fixed Count"], // [Position, Length, Character, Mode]
},
],
},
{
name: "Can pad lines with enough characters to the start in target length mode.",
input: "ABCD\nEF",
expectedOutput: `------ABCD\n--------EF`,
recipeConfig: [
{
op: "Pad Lines",
args: ["Start", 10, "-", "Target Length"], // [Position, Length, Character, Mode]
},
],
},
{
name: "Can pad lines with enough characters to the end in target length mode.",
input: "ABCD\nEF",
expectedOutput: `ABCD------\nEF--------`,
recipeConfig: [
{
op: "Pad Lines",
args: ["End", 10, "-", "Target Length"], // [Position, Length, Character, Mode]
},
],
},
]);