Init

.github/workflows/publish.yml

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+name: Publish
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write # The OIDC ID token is used for authentication with JSR.
+    steps:
+      - uses: actions/checkout@v4
+      - uses: denoland/setup-deno@v1
+        with:
+          deno-version: v2.x # Run with latest stable Deno.
+
+      - run: deno task check
+      - run: npx jsr publish

.vscode/settings.json

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+{
+  "deno.enable": true,
+  "editor.defaultFormatter": "denoland.vscode-deno",
+  "npm.autoDetect": "off",
+  "[typescript]": {
+    "editor.defaultFormatter": "denoland.vscode-deno"
+  }
+}

LICENSE

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+MIT License
+
+Copyright (c) 2024 Etienne Dldc
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# CSS console
+
+Print styled text in the console using CSS styles
+([using `%c` flag](https://developer.mozilla.org/en-US/docs/Web/API/console#styling_console_output)).

deno.json

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+{
+  "name": "@dldc/console-colors",
+  "version": "0.1.0",
+  "exports": "./mod.ts",
+  "tasks": {
+    "update": "deno run -A jsr:@molt/cli",
+    "update:commit": "deno task -q update --commit",
+    "check": "deno check **/*.ts && deno fmt --check && deno lint"
+  },
+  "imports": {}
+}

mod.ts

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+export * from "./src/applyStyles.ts";
+export * from "./src/base.ts";
+export * from "./src/colors.ts";
+export * from "./src/css.ts";
+export * from "./src/styledString.ts";

src/applyStyles.ts

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+import { CSS_SUBSTITUTIONS } from "./constants.ts";
+import type { TConsoleStyles } from "./css.ts";
+import { styledString, type TStyledString } from "./styledString.ts";
+
+export function applyStyles(
+  value: string | TStyledString,
+  styles: TConsoleStyles,
+): TStyledString {
+  if (typeof value === "string") {
+    if (value.includes(CSS_SUBSTITUTIONS)) {
+      throw new Error("Unexpected CSS_SUBSTITUTIONS in content");
+    }
+    return styledString(CSS_SUBSTITUTIONS + value, [styles]);
+  }
+  if (value.content.startsWith(CSS_SUBSTITUTIONS)) {
+    return styledString(
+      value.content,
+      value.styles.map((s) => ({ ...s, ...styles })),
+    );
+  }
+  return styledString(CSS_SUBSTITUTIONS + value.content, [
+    styles,
+    ...value.styles.map((s) => ({ ...s, ...styles })),
+  ]);
+}

src/base.ts

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+import { CSS_SUBSTITUTIONS } from "./constants.ts";
+import type { TConsoleStyles } from "./css.ts";
+import { styledString, type TStyledString } from "./styledString.ts";
+
+// template literal fn
+export function base(
+  strings: TemplateStringsArray,
+  ...values: (string | TStyledString)[]
+): TStyledString {
+  const parts: (string | TStyledString)[] = [];
+  const addPart = (part: string | TStyledString) => {
+    if (part === "") {
+      return;
+    }
+    const lastPart = parts[parts.length - 1];
+    if (typeof lastPart === "string") {
+      parts[parts.length - 1] = lastPart + part;
+    } else {
+      parts.push(part);
+    }
+  };
+
+  for (let i = 0; i < strings.length; i++) {
+    addPart(strings[i]);
+    if (i < values.length) {
+      addPart(values[i]);
+    }
+  }
+
+  let content = "";
+  const styles: TConsoleStyles[] = [];
+  let onlyString = true;
+
+  parts.forEach((part) => {
+    if (typeof part === "string") {
+      if (onlyString) {
+        content += part;
+        return;
+      }
+      content += CSS_SUBSTITUTIONS + part;
+      styles.push({});
+      return;
+    }
+    onlyString = false;
+    content += part.content;
+    styles.push(...part.styles);
+  });
+
+  return styledString(content, styles);
+}