Replace ansi_up with code from Classic Notebook (#5336)

* WIP: Try to replace ansi_up with code from Classic Notebook

Fixes #3773.

* Add html escape and clean up lint

* TST: Update ANSI tests

* revert changes to staging

* Move code to Private namespace

* Rename main function: fixConsole() -> ansiSpan()

* Use ES6-style string formatting and arrow function

* Add return type annotations

buildutils/package-lock.json

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+    "signal-exit": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
+      "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0="
+    },
+    "sort-keys": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/sort-keys/-/sort-keys-2.0.0.tgz",
+      "integrity": "sha1-ZYU1WEhh7JfXMNbPQYIuH1ZoQSg=",
+      "requires": {
+        "is-plain-obj": "^1.0.0"
+      }
+    },
+    "sort-object-keys": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/sort-object-keys/-/sort-object-keys-1.1.2.tgz",
+      "integrity": "sha1-06bEjcKsl+a8lDZ2luA/bQnTeVI="
+    },
+    "sort-package-json": {
+      "version": "1.7.1",
+      "resolved": "https://registry.npmjs.org/sort-package-json/-/sort-package-json-1.7.1.tgz",
+      "integrity": "sha1-8uX7/+hCDMG7BEhfRQnwXnO0wPI=",
+      "requires": {
+        "sort-object-keys": "^1.1.1"
+      }
+    },
+    "strict-uri-encode": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz",
+      "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM="
+    },
+    "string-width": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+      "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+      "requires": {
+        "is-fullwidth-code-point": "^2.0.0",
+        "strip-ansi": "^4.0.0"
+      }
+    },
+    "string_decoder": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.1.1.tgz",
+      "integrity": "sha512-n/ShnvDi6FHbbVfviro+WojiFzv+s8MPMHBczVePfUpDJLwoLT0ht1l4YwBCbi8pJAveEEdnkHyPyTP/mzRfwg==",
+      "requires": {
+        "safe-buffer": "~5.1.0"
+      }
+    },
+    "strip-ansi": {
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+      "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+      "requires": {
+        "ansi-regex": "^3.0.0"
+      }
+    },
+    "strip-json-comments": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
+      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo="
+    },
+    "supports-color": {
+      "version": "5.5.0",
+      "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+      "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+      "requires": {
+        "has-flag": "^3.0.0"
+      }
+    },
+    "through": {
+      "version": "2.3.8",
+      "resolved": "http://registry.npmjs.org/through/-/through-2.3.8.tgz",
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
+    },
+    "timed-out": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz",
+      "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8="
+    },
+    "tmp": {
+      "version": "0.0.33",
+      "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
+      "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
+      "requires": {
+        "os-tmpdir": "~1.0.2"
+      }
+    },
+    "typescript": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.1.1.tgz",
+      "integrity": "sha512-Veu0w4dTc/9wlWNf2jeRInNodKlcdLgemvPsrNpfu5Pq39sgfFjvIIgTsvUHCoLBnMhPoUA+tFxsXjU6VexVRQ=="
+    },
+    "universalify": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/universalify/-/universalify-0.1.2.tgz",
+      "integrity": "sha512-rBJeI5CXAlmy1pV+617WB9J63U6XcazHHF2f2dbJix4XzpUF0RS3Zbj0FGIOCAva5P/d/GBOYaACQ1w+0azUkg=="
+    },
+    "url-parse-lax": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/url-parse-lax/-/url-parse-lax-3.0.0.tgz",
+      "integrity": "sha1-FrXK/Afb42dsGxmZF3gj1lA6yww=",
+      "requires": {
+        "prepend-http": "^2.0.0"
+      }
+    },
+    "url-to-options": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/url-to-options/-/url-to-options-1.0.1.tgz",
+      "integrity": "sha1-FQWgOiiaSMvXpDTvuu7FBV9WM6k="
+    },
+    "util": {
+      "version": "0.10.4",
+      "resolved": "https://registry.npmjs.org/util/-/util-0.10.4.tgz",
+      "integrity": "sha512-0Pm9hTQ3se5ll1XihRic3FDIku70C+iHUdT/W926rSgHV5QgXsYbKZN8MSC3tJtSkhuROzvsQjAaFENRXr+19A==",
+      "requires": {
+        "inherits": "2.0.3"
+      }
+    },
+    "util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+    },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+    }
+  }
+}

dev_mode/package.json

@@ -90,7 +90,6 @@
     "@phosphor/virtualdom": "^1.1.2",
     "@phosphor/widgets": "^1.6.0",
     "ajv": "~5.1.6",
-    "ansi_up": "^3.0.0",
     "codemirror": "~5.39.0",
     "comment-json": "^1.1.3",
     "es6-promise": "~4.1.1",
@@ -206,7 +205,6 @@
       "@phosphor/virtualdom",
       "@phosphor/widgets",
       "ajv",
-      "ansi_up",
       "codemirror",
       "comment-json",
       "es6-promise",

packages/rendermime/package.json

@@ -42,10 +42,11 @@
     "@phosphor/messaging": "^1.2.2",
     "@phosphor/signaling": "^1.2.2",
     "@phosphor/widgets": "^1.6.0",
-    "ansi_up": "^3.0.0",
+    "lodash.escape": "^4.0.1",
     "marked": "0.5.1"
   },
   "devDependencies": {
+    "@types/lodash.escape": "^4.0.4",
     "@types/marked": "~0.3.0",
     "rimraf": "~2.6.2",
     "typedoc": "~0.12.0",

packages/rendermime/src/renderers.ts

@@ -3,8 +3,6 @@
 | Distributed under the terms of the Modified BSD License.
 |----------------------------------------------------------------------------*/
 
-import { default as AnsiUp } from 'ansi_up';
-
 import marked from 'marked';
 
 import { ISanitizer } from '@jupyterlab/apputils';
@@ -17,6 +15,8 @@ import { IRenderMime } from '@jupyterlab/rendermime-interfaces';
 
 import { toArray } from '@phosphor/algorithm';
 
+import escape = require('lodash.escape');
+
 import { removeMath, replaceMath } from './latex';
 
 /**
@@ -527,12 +527,8 @@ export function renderText(options: renderText.IRenderOptions): Promise<void> {
   // Unpack the options.
   let { host, source } = options;
 
-  const ansiUp = new AnsiUp();
-  ansiUp.escape_for_html = true;
-  ansiUp.use_classes = true;
-
   // Create the HTML content.
-  let content = ansiUp.ansi_to_html(source);
+  let content = Private.ansiSpan(source);
 
   // Set the inner HTML for the host node.
   host.innerHTML = `<pre>${content}</pre>`;
@@ -855,4 +851,274 @@ namespace Private {
       }
     });
   }
+
+  let ANSI_COLORS = [
+    'ansi-black',
+    'ansi-red',
+    'ansi-green',
+    'ansi-yellow',
+    'ansi-blue',
+    'ansi-magenta',
+    'ansi-cyan',
+    'ansi-white',
+    'ansi-black-intense',
+    'ansi-red-intense',
+    'ansi-green-intense',
+    'ansi-yellow-intense',
+    'ansi-blue-intense',
+    'ansi-magenta-intense',
+    'ansi-cyan-intense',
+    'ansi-white-intense'
+  ];
+
+  /**
+   * Create HTML tags for a string with given foreground, background etc. and
+   * add them to the `out` array.
+   */
+  function pushColoredChunk(
+    chunk: string,
+    fg: number | Array<number>,
+    bg: number | Array<number>,
+    bold: boolean,
+    underline: boolean,
+    inverse: boolean,
+    out: Array<string>
+  ): void {
+    if (chunk) {
+      let classes = [];
+      let styles = [];
+
+      if (bold && typeof fg === 'number' && 0 <= fg && fg < 8) {
+        fg += 8; // Bold text uses "intense" colors
+      }
+      if (inverse) {
+        [fg, bg] = [bg, fg];
+      }
+
+      if (typeof fg === 'number') {
+        classes.push(ANSI_COLORS[fg] + '-fg');
+      } else if (fg.length) {
+        styles.push(`color: rgb(${fg})`);
+      } else if (inverse) {
+        classes.push('ansi-default-inverse-fg');
+      }
+
+      if (typeof bg === 'number') {
+        classes.push(ANSI_COLORS[bg] + '-bg');
+      } else if (bg.length) {
+        styles.push(`background-color: rgb(${bg})`);
+      } else if (inverse) {
+        classes.push('ansi-default-inverse-bg');
+      }
+
+      if (bold) {
+        classes.push('ansi-bold');
+      }
+
+      if (underline) {
+        classes.push('ansi-underline');
+      }
+
+      if (classes.length || styles.length) {
+        out.push('<span');
+        if (classes.length) {
+          out.push(` class="${classes.join(' ')}"`);
+        }
+        if (styles.length) {
+          out.push(` style="${styles.join('; ')}"`);
+        }
+        out.push('>');
+        out.push(chunk);
+        out.push('</span>');
+      } else {
+        out.push(chunk);
+      }
+    }
+  }
+
+  /**
+   * Convert ANSI extended colors to R/G/B triple.
+   */
+  function getExtendedColors(numbers: Array<number>): number | Array<number> {
+    let r;
+    let g;
+    let b;
+    let n = numbers.shift();
+    if (n === 2 && numbers.length >= 3) {
+      // 24-bit RGB
+      r = numbers.shift();
+      g = numbers.shift();
+      b = numbers.shift();
+      if ([r, g, b].some(c => c < 0 || 255 < c)) {
+        throw new RangeError('Invalid range for RGB colors');
+      }
+    } else if (n === 5 && numbers.length >= 1) {
+      // 256 colors
+      let idx = numbers.shift();
+      if (idx < 0) {
+        throw new RangeError('Color index must be >= 0');
+      } else if (idx < 16) {
+        // 16 default terminal colors
+        return idx;
+      } else if (idx < 232) {
+        // 6x6x6 color cube, see https://stackoverflow.com/a/27165165/500098
+        r = Math.floor((idx - 16) / 36);
+        r = r > 0 ? 55 + r * 40 : 0;
+        g = Math.floor(((idx - 16) % 36) / 6);
+        g = g > 0 ? 55 + g * 40 : 0;
+        b = (idx - 16) % 6;
+        b = b > 0 ? 55 + b * 40 : 0;
+      } else if (idx < 256) {
+        // grayscale, see https://stackoverflow.com/a/27165165/500098
+        r = g = b = (idx - 232) * 10 + 8;
+      } else {
+        throw new RangeError('Color index must be < 256');
+      }
+    } else {
+      throw new RangeError('Invalid extended color specification');
+    }
+    return [r, g, b];
+  }
+
+  /**
+   * Transform ANSI color escape codes into HTML <span> tags with CSS
+   * classes such as "ansi-green-intense-fg".
+   * The actual colors used are set in the CSS file.
+   * This also removes non-color escape sequences.
+   * This is supposed to have the same behavior as nbconvert.filters.ansi2html()
+   */
+  export function ansiSpan(str: string): string {
+    let ansiRe = /\x1b\[(.*?)([@-~])/g;
+    let fg: number | Array<number> = [];
+    let bg: number | Array<number> = [];
+    let bold = false;
+    let underline = false;
+    let inverse = false;
+    let match;
+    let out: Array<string> = [];
+    let numbers = [];
+    let start = 0;
+
+    str = escape(str);
+
+    str += '\x1b[m'; // Ensure markup for trailing text
+    // tslint:disable-next-line
+    while ((match = ansiRe.exec(str))) {
+      if (match[2] === 'm') {
+        let items = match[1].split(';');
+        for (let i = 0; i < items.length; i++) {
+          let item = items[i];
+          if (item === '') {
+            numbers.push(0);
+          } else if (item.search(/^\d+$/) !== -1) {
+            numbers.push(parseInt(item, 10));
+          } else {
+            // Ignored: Invalid color specification
+            numbers.length = 0;
+            break;
+          }
+        }
+      } else {
+        // Ignored: Not a color code
+      }
+      let chunk = str.substring(start, match.index);
+      pushColoredChunk(chunk, fg, bg, bold, underline, inverse, out);
+      start = ansiRe.lastIndex;
+
+      while (numbers.length) {
+        let n = numbers.shift();
+        switch (n) {
+          case 0:
+            fg = bg = [];
+            bold = false;
+            underline = false;
+            inverse = false;
+            break;
+          case 1:
+          case 5:
+            bold = true;
+            break;
+          case 4:
+            underline = true;
+            break;
+          case 7:
+            inverse = true;
+            break;
+          case 21:
+          case 22:
+            bold = false;
+            break;
+          case 24:
+            underline = false;
+            break;
+          case 27:
+            inverse = false;
+            break;
+          case 30:
+          case 31:
+          case 32:
+          case 33:
+          case 34:
+          case 35:
+          case 36:
+          case 37:
+            fg = n - 30;
+            break;
+          case 38:
+            try {
+              fg = getExtendedColors(numbers);
+            } catch (e) {
+              numbers.length = 0;
+            }
+            break;
+          case 39:
+            fg = [];
+            break;
+          case 40:
+          case 41:
+          case 42:
+          case 43:
+          case 44:
+          case 45:
+          case 46:
+          case 47:
+            bg = n - 40;
+            break;
+          case 48:
+            try {
+              bg = getExtendedColors(numbers);
+            } catch (e) {
+              numbers.length = 0;
+            }
+            break;
+          case 49:
+            bg = [];
+            break;
+          case 90:
+          case 91:
+          case 92:
+          case 93:
+          case 94:
+          case 95:
+          case 96:
+          case 97:
+            fg = n - 90 + 8;
+            break;
+          case 100:
+          case 101:
+          case 102:
+          case 103:
+          case 104:
+          case 105:
+          case 106:
+          case 107:
+            bg = n - 100 + 8;
+            break;
+          default:
+          // Unknown codes are ignored
+        }
+      }
+    }
+    return out.join('');
+  }
 }

packages/rendermime/style/index.css

@@ -24,7 +24,7 @@
   padding: 0px;
 }
 
-/* ansi_up creates classed spans for console foregrounds and backgrounds. */
+/* console foregrounds and backgrounds */
 .jp-RenderedText pre .ansi-black-fg {
   color: #3e424d;
 }
@@ -75,56 +75,70 @@
   background-color: #c5c1b4;
 }
 
-.jp-RenderedText pre .ansi-bright-black-fg {
+.jp-RenderedText pre .ansi-black-intense-fg {
   color: #282c36;
 }
-.jp-RenderedText pre .ansi-bright-red-fg {
+.jp-RenderedText pre .ansi-red-intense-fg {
   color: #b22b31;
 }
-.jp-RenderedText pre .ansi-bright-green-fg {
+.jp-RenderedText pre .ansi-green-intense-fg {
   color: #007427;
 }
-.jp-RenderedText pre .ansi-bright-yellow-fg {
+.jp-RenderedText pre .ansi-yellow-intense-fg {
   color: #b27d12;
 }
-.jp-RenderedText pre .ansi-bright-blue-fg {
+.jp-RenderedText pre .ansi-blue-intense-fg {
   color: #0065ca;
 }
-.jp-RenderedText pre .ansi-bright-magenta-fg {
+.jp-RenderedText pre .ansi-magenta-intense-fg {
   color: #a03196;
 }
-.jp-RenderedText pre .ansi-bright-cyan-fg {
+.jp-RenderedText pre .ansi-cyan-intense-fg {
   color: #258f8f;
 }
-.jp-RenderedText pre .ansi-bright-white-fg {
+.jp-RenderedText pre .ansi-white-intense-fg {
   color: #a1a6b2;
 }
 
-.jp-RenderedText pre .ansi-bright-black-bg {
+.jp-RenderedText pre .ansi-black-intense-bg {
   background-color: #282c36;
 }
-.jp-RenderedText pre .ansi-bright-red-bg {
+.jp-RenderedText pre .ansi-red-intense-bg {
   background-color: #b22b31;
 }
-.jp-RenderedText pre .ansi-bright-green-bg {
+.jp-RenderedText pre .ansi-green-intense-bg {
   background-color: #007427;
 }
-.jp-RenderedText pre .ansi-bright-yellow-bg {
+.jp-RenderedText pre .ansi-yellow-intense-bg {
   background-color: #b27d12;
 }
-.jp-RenderedText pre .ansi-bright-blue-bg {
+.jp-RenderedText pre .ansi-blue-intense-bg {
   background-color: #0065ca;
 }
-.jp-RenderedText pre .ansi-bright-magenta-bg {
+.jp-RenderedText pre .ansi-magenta-intense-bg {
   background-color: #a03196;
 }
-.jp-RenderedText pre .ansi-bright-cyan-bg {
+.jp-RenderedText pre .ansi-cyan-intense-bg {
   background-color: #258f8f;
 }
-.jp-RenderedText pre .ansi-bright-white-bg {
+.jp-RenderedText pre .ansi-white-intense-bg {
   background-color: #a1a6b2;
 }
 
+.jp-RenderedText pre .ansi-default-inverse-fg {
+  color: #ffffff;
+}
+.jp-RenderedText pre .ansi-default-inverse-bg {
+  background-color: #000000;
+}
+
+.jp-RenderedText pre .ansi-bold {
+  font-weight: bold;
+}
+.jp-RenderedText pre .ansi-underline {
+  text-decoration: underline;
+}
+
 .jp-RenderedText[data-mime-type='application/vnd.jupyter.stderr'] {
   background: var(--jp-rendermime-error-background);
   padding-top: var(--jp-code-padding);

tests/test-rendermime/src/factories.spec.ts

@@ -74,7 +74,7 @@ describe('rendermime/factories', () => {
         const w = f.createRenderer({ mimeType, ...defaultOptions });
         await w.renderModel(model);
         expect(w.node.innerHTML).to.equal(
-          '<pre>There is no text but <span style="font-weight:bold" class="ansi-green-fg ansi-red-bg">text</span>.\nWoo.</pre>'
+          '<pre>There is no text but <span class="ansi-green-intense-fg ansi-red-bg ansi-bold">text</span>.\nWoo.</pre>'
         );
       });
 
@@ -87,7 +87,7 @@ describe('rendermime/factories', () => {
         const w = f.createRenderer({ mimeType, ...defaultOptions });
         await w.renderModel(model);
         expect(w.node.innerHTML).to.equal(
-          '<pre>There is no text &lt;script&gt;window.x=1&lt;/script&gt; but <span style="font-weight:bold" class="ansi-green-fg ansi-red-bg">text</span>.\nWoo.</pre>'
+          '<pre>There is no text &lt;script&gt;window.x=1&lt;/script&gt; but <span class="ansi-green-intense-fg ansi-red-bg ansi-bold">text</span>.\nWoo.</pre>'
         );
       });
     });

yarn.lock

@@ -717,7 +717,13 @@
   version "1.0.32"
   resolved "https://registry.yarnpkg.com/@types/json-stable-stringify/-/json-stable-stringify-1.0.32.tgz#121f6917c4389db3923640b2e68de5fa64dda88e"
 
-"@types/lodash@^4.14.110":
+"@types/lodash.escape@^4.0.4":
+  version "4.0.4"
+  resolved "https://registry.yarnpkg.com/@types/lodash.escape/-/lodash.escape-4.0.4.tgz#61312495e5ff48e142e176530903e3aac1146eb5"
+  dependencies:
+    "@types/lodash" "*"
+
+"@types/lodash@*", "@types/lodash@^4.14.110":
   version "4.14.116"
   resolved "https://registry.yarnpkg.com/@types/lodash/-/lodash-4.14.116.tgz#5ccf215653e3e8c786a58390751033a9adca0eb9"
 
@@ -1211,10 +1217,6 @@ ansi-styles@^3.2.0, ansi-styles@^3.2.1:
   dependencies:
     color-convert "^1.9.0"
 
-ansi_up@^3.0.0:
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/ansi_up/-/ansi_up-3.0.0.tgz#27f45d8f457d9ceff59e4ea03c8e6f13c1a303e8"
-
 any-observable@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/any-observable/-/any-observable-0.3.0.tgz#af933475e5806a67d0d7df090dd5e8bef65d119b"
@@ -6105,6 +6107,10 @@ lodash.endswith@^4.2.1:
   version "4.2.1"
   resolved "https://registry.yarnpkg.com/lodash.endswith/-/lodash.endswith-4.2.1.tgz#fed59ac1738ed3e236edd7064ec456448b37bc09"
 
+lodash.escape@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/lodash.escape/-/lodash.escape-4.0.1.tgz#c9044690c21e04294beaa517712fded1fa88de98"
+
 lodash.escaperegexp@^4.1.2:
   version "4.1.2"
   resolved "https://registry.yarnpkg.com/lodash.escaperegexp/-/lodash.escaperegexp-4.1.2.tgz#64762c48618082518ac3df4ccf5d5886dae20347"