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sualeh · May 6, 2024 · 72408c2 · 72408c2
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diff --git a/Notebooks/1_go_unicode_char_literals.ipynb b/Notebooks/1_go_unicode_char_literals.ipynb
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-{"cells":[{"cell_type":"markdown","metadata":{"id":"FWzjioUI63tT"},"source":["# Unicode Character Literals"]},{"cell_type":"markdown","metadata":{"id":"i-bezriyHDdD"},"source":["----------\n","\n","## Google Colab\n","\n","You can run this notebook in Google Colab. The cell below should be run only once, and then followed by a change of runtime to `Go (gonb)`. Refresh the browser before running any subsequent code. If you are not running the notebook in Google Colab, skip this section."]},{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"elapsed":102512,"status":"ok","timestamp":1714945867744,"user":{"displayName":"Sualeh Fatehi","userId":"04758152281280757291"},"user_tz":240},"id":"3PaXSu67xkrg","outputId":"7d5ee853-d919-442a-c2f1-742e82717f3d"},"outputs":[],"source":["#@title Prepare Google Colab for Go Kernel\n","\n","# Install Go and goimports.\n","!echo -n \"Installing go ...\"\n","!mkdir -p cache\n","!wget -q -O cache/go.tar.gz 'https://go.dev/dl/go1.22.2.linux-amd64.tar.gz'\n","!tar xzf cache/go.tar.gz\n","%env GOROOT=/content/go\n","!ln -sf \"/content/go/bin/go\" /usr/bin/go\n","!echo \" done.\"\n","!go version\n","\n","# Install gonb, goimports, gopls.\n","!echo -n \"Installing gonb ...\"\n","!go install github.com/janpfeifer/gonb@latest >& /tmp/output || cat /tmp/output\n","!echo \" done.\"\n","!ln -sf /root/go/bin/gonb /usr/bin/gonb\n","\n","!echo -n \"Installing goimports ...\"\n","!go install golang.org/x/tools/cmd/goimports@latest >& /tmp/output || cat /tmp/output\n","!echo \" done.\"\n","!ln -sf /root/go/bin/goimports /usr/bin/goimports\n","\n","!echo -n \"Installing gopls ...\"\n","!go install golang.org/x/tools/gopls@latest >& /tmp/output || cat /tmp/output\n","!echo \" done.\"\n","!ln -sf /root/go/bin/gopls /usr/bin/gopls\n","\n","# Install gonb kernel configuration.\n","!gonb --install --logtostderr\n","!echo \"Done!\""]},{"cell_type":"markdown","metadata":{},"source":["----------"]},{"cell_type":"markdown","metadata":{"id":"HadGU80XudVz"},"source":["## Valid Character Literals"]},{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"elapsed":481,"status":"ok","timestamp":1714946946017,"user":{"displayName":"Sualeh Fatehi","userId":"04758152281280757291"},"user_tz":240},"id":"FqH3tlqjsDpV","outputId":"41d6db36-9726-49db-f332-b8917290a625"},"outputs":[],"source":["%%\n","ch1 := 'a'\n","ch2 := '東' // (Not an ASCII character!)\n","ch3 := '𐐀' // (Not a BMP character!)\n","// ch4 := '\\' // (Backslash is a syntax error in Go!)\n","\n","fmt.Printf(\"%c %c %c\\n\", ch1, ch2, ch3)"]},{"cell_type":"markdown","metadata":{"id":"FXz5BuqczgzZ"},"source":["## Unicode Notation in Strings\n","\n","- `\\uHHHH` - where H is a case-insensitive hexadecimal character\n","- Only supports the Basic Multilingual Plane"]},{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"elapsed":616,"status":"ok","timestamp":1714947118452,"user":{"displayName":"Sualeh Fatehi","userId":"04758152281280757291"},"user_tz":240},"id":"aK16puWgzhsl","outputId":"7a560cec-d4b4-4977-f026-05c2e3657f3b"},"outputs":[],"source":["%%\n","ch5 := '\\u00EA' // ‘ê’\n","str1 := \"a\\u00ea\\u00f1\\u00fcc\" // “aêñüc”\n","str2 := \"A\\u00EA\\u00F1\\u00FCC\" // “AêñüC”\n","\n","fmt.Printf(\"%c\\n\", ch5)\n","fmt.Println(str1)\n","fmt.Println(str2)"]},{"cell_type":"markdown","metadata":{"id":"prsKwd-m2nT_"},"source":["## Unicode Code Point Literals\n","\n","- `\\U00HHHHHH` for specifying code point plane and code point for characters outside the BMP"]},{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"elapsed":315,"status":"ok","timestamp":1714947868441,"user":{"displayName":"Sualeh Fatehi","userId":"04758152281280757291"},"user_tz":240},"id":"lVkkNx5S2oqi","outputId":"febbed40-6623-4bfe-e6c4-4e9eba18ff6a"},"outputs":[],"source":["%%\n","str3 := \"\\U00010400\" // '𐐀'\n","\n","fmt.Println(str3)\n","fmt.Printf(\"length: %d\\n\", utf8.RuneCountInString(str3))"]},{"cell_type":"markdown","metadata":{"id":"CtIvqiZy3C50"},"source":["## Unicode Code Point Literals as Integers\n","\n","- `0xHHHHHH` for specifying code point plane and code point for characters outside the BMP\n","- Use the `chr()` function"]},{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"elapsed":136,"status":"ok","timestamp":1714951765615,"user":{"displayName":"Sualeh Fatehi","userId":"04758152281280757291"},"user_tz":240},"id":"mx9GXV4J3EtZ","outputId":"8e98b5e4-e949-494e-f656-1a58ff1ae0b3"},"outputs":[],"source":["%%\n","cp1 := '\\U00010400' // '𐐀'\n","str4 := string(cp1)\n","\n","fmt.Println(str4)\n","fmt.Printf(\"length: %d\\n\", utf8.RuneCountInString(str4))"]},{"cell_type":"markdown","metadata":{"id":"6nVgUBOTGmcY"},"source":["## Escape Sequences"]},{"cell_type":"code","execution_count":null,"metadata":{"colab":{"base_uri":"https://localhost:8080/"},"executionInfo":{"elapsed":657,"status":"ok","timestamp":1714952032909,"user":{"displayName":"Sualeh Fatehi","userId":"04758152281280757291"},"user_tz":240},"id":"KMGAl1njGoJE","outputId":"47be2164-bf77-4977-b215-8df2d084876b"},"outputs":[],"source":["func printUnicode(ch rune) {\n","    fmt.Printf(\"\\\\u%04x\\n\", ch)\n","}\n","\n","%%\n","printUnicode('\\t')\n","printUnicode('\\b')\n","printUnicode('\\n')\n","printUnicode('\\r')\n","printUnicode('\\f')\n","printUnicode('\\'')\n","printUnicode('\"')\n","printUnicode('\\\\')"]}],"metadata":{"colab":{"provenance":[{"file_id":"1vUd3SSoOm2K6UQLnkJQursZZx4CaIT_1","timestamp":1714945497637}]},"kernelspec":{"display_name":"Go (gonb)","name":"gonb"}},"nbformat":4,"nbformat_minor":0}
+{
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "view-in-github",
+        "colab_type": "text"
+      },
+      "source": [
+        "<a href=\"https://colab.research.google.com/github/sualeh/What-a-Character/blob/go/Notebooks/1_go_unicode_char_literals.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "FWzjioUI63tT"
+      },
+      "source": [
+        "# Unicode Character Literals"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "i-bezriyHDdD"
+      },
+      "source": [
+        "----------\n",
+        "\n",
+        "## Google Colab\n",
+        "\n",
+        "You can run this notebook in Google Colab. The cell below should be run only once, and then followed by a change of runtime to `Go (gonb)`. Refresh the browser before running any subsequent code. If you are not running the notebook in Google Colab, skip this section."
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "3PaXSu67xkrg",
+        "cellView": "form"
+      },
+      "outputs": [],
+      "source": [
+        "#@title Prepare Google Colab for Go Kernel\n",
+        "\n",
+        "# Install Go and goimports.\n",
+        "!echo -n \"Installing go ...\"\n",
+        "!mkdir -p cache\n",
+        "!wget -q -O cache/go.tar.gz 'https://go.dev/dl/go1.22.2.linux-amd64.tar.gz'\n",
+        "!tar xzf cache/go.tar.gz\n",
+        "%env GOROOT=/content/go\n",
+        "!ln -sf \"/content/go/bin/go\" /usr/bin/go\n",
+        "!echo \" done.\"\n",
+        "!go version\n",
+        "\n",
+        "# Install gonb, goimports, gopls.\n",
+        "!echo -n \"Installing gonb ...\"\n",
+        "!go install github.com/janpfeifer/gonb@latest >& /tmp/output || cat /tmp/output\n",
+        "!echo \" done.\"\n",
+        "!ln -sf /root/go/bin/gonb /usr/bin/gonb\n",
+        "\n",
+        "!echo -n \"Installing goimports ...\"\n",
+        "!go install golang.org/x/tools/cmd/goimports@latest >& /tmp/output || cat /tmp/output\n",
+        "!echo \" done.\"\n",
+        "!ln -sf /root/go/bin/goimports /usr/bin/goimports\n",
+        "\n",
+        "!echo -n \"Installing gopls ...\"\n",
+        "!go install golang.org/x/tools/gopls@latest >& /tmp/output || cat /tmp/output\n",
+        "!echo \" done.\"\n",
+        "!ln -sf /root/go/bin/gopls /usr/bin/gopls\n",
+        "\n",
+        "# Install gonb kernel configuration.\n",
+        "!gonb --install --logtostderr\n",
+        "!echo \"Done!\""
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "8Qp_s5HtUBcA"
+      },
+      "source": [
+        "----------"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "HadGU80XudVz"
+      },
+      "source": [
+        "## Valid Character Literals"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "FqH3tlqjsDpV"
+      },
+      "outputs": [],
+      "source": [
+        "%%\n",
+        "ch1 := 'a'\n",
+        "ch2 := '東' // (Not an ASCII character!)\n",
+        "ch3 := '𐐀' // (Not a BMP character!)\n",
+        "// ch4 := '\\' // (Backslash is a syntax error in Go!)\n",
+        "\n",
+        "fmt.Printf(\"%c %c %c\\n\", ch1, ch2, ch3)"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "FXz5BuqczgzZ"
+      },
+      "source": [
+        "## Unicode Notation in Strings\n",
+        "\n",
+        "- `\\uHHHH` - where H is a case-insensitive hexadecimal character\n",
+        "- Only supports the Basic Multilingual Plane"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "aK16puWgzhsl"
+      },
+      "outputs": [],
+      "source": [
+        "%%\n",
+        "ch5 := '\\u00EA' // ‘ê’\n",
+        "str1 := \"a\\u00ea\\u00f1\\u00fcc\" // “aêñüc”\n",
+        "str2 := \"A\\u00EA\\u00F1\\u00FCC\" // “AêñüC”\n",
+        "\n",
+        "fmt.Printf(\"%c\\n\", ch5)\n",
+        "fmt.Println(str1)\n",
+        "fmt.Println(str2)"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "prsKwd-m2nT_"
+      },
+      "source": [
+        "## Unicode Code Point Literals\n",
+        "\n",
+        "- `\\U00HHHHHH` for specifying code point plane and code point for characters outside the BMP"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "lVkkNx5S2oqi"
+      },
+      "outputs": [],
+      "source": [
+        "%%\n",
+        "str3 := \"\\U00010400\" // '𐐀'\n",
+        "\n",
+        "fmt.Println(str3)\n",
+        "fmt.Printf(\"length: %d\\n\", utf8.RuneCountInString(str3))"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "CtIvqiZy3C50"
+      },
+      "source": [
+        "## Unicode Code Point Literals as Integers\n",
+        "\n",
+        "- `0xHHHHHH` for specifying code point plane and code point for characters outside the BMP\n",
+        "- Use the `chr()` function"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "mx9GXV4J3EtZ"
+      },
+      "outputs": [],
+      "source": [
+        "%%\n",
+        "cp1 := '\\U00010400' // '𐐀'\n",
+        "str4 := string(cp1)\n",
+        "\n",
+        "fmt.Println(str4)\n",
+        "fmt.Printf(\"length: %d\\n\", utf8.RuneCountInString(str4))"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "6nVgUBOTGmcY"
+      },
+      "source": [
+        "## Escape Sequences"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "metadata": {
+        "id": "KMGAl1njGoJE"
+      },
+      "outputs": [],
+      "source": [
+        "func printUnicode(ch rune) {\n",
+        "    fmt.Printf(\"\\\\u%04x\\n\", ch)\n",
+        "}\n",
+        "\n",
+        "%%\n",
+        "printUnicode('\\t')\n",
+        "printUnicode('\\b')\n",
+        "printUnicode('\\n')\n",
+        "printUnicode('\\r')\n",
+        "printUnicode('\\f')\n",
+        "printUnicode('\\'')\n",
+        "printUnicode('\"')\n",
+        "printUnicode('\\\\')"
+      ]
+    }
+  ],
+  "metadata": {
+    "colab": {
+      "provenance": [],
+      "include_colab_link": true
+    },
+    "kernelspec": {
+      "display_name": "Go (gonb)",
+      "name": "gonb"
+    }
+  },
+  "nbformat": 4,
+  "nbformat_minor": 0
+}