Initial commit, 90% there

node_modules/command-line-usage/lib/content.js

@@ -0,0 +1,81 @@
+'use strict'
+const Table = require('table-layout')
+const ansi = require('ansi-escape-sequences')
+const t = require('typical')
+
+class Content {
+  constructor (content) {
+    this._content = content
+  }
+
+  lines () {
+    const content = this._content
+    const defaultPadding = { left: '  ', right: ' ' }
+
+    if (content) {
+      /* string content */
+      if (t.isString(content)) {
+        const table = new Table({ column: ansi.format(content) }, {
+          padding: defaultPadding,
+          maxWidth: 80
+        })
+        return table.renderLines()
+
+      /* array of strings */
+      } else if (Array.isArray(content) && content.every(t.isString)) {
+        const rows = content.map(string => ({ column: ansi.format(string) }))
+        const table = new Table(rows, {
+          padding: defaultPadding,
+          maxWidth: 80
+        })
+        return table.renderLines()
+
+      /* array of objects (use table-layout) */
+      } else if (Array.isArray(content) && content.every(t.isPlainObject)) {
+        const table = new Table(content.map(row => ansiFormatRow(row)), {
+          padding: defaultPadding
+        })
+        return table.renderLines()
+
+      /* { options: object, data: object[] } */
+      } else if (t.isPlainObject(content)) {
+        if (!content.options || !content.data) {
+          throw new Error('must have an "options" or "data" property\n' + JSON.stringify(content))
+        }
+        const options = Object.assign(
+          { padding: defaultPadding },
+          content.options
+        )
+
+        /* convert nowrap to noWrap to avoid breaking compatibility */
+        if (options.columns) {
+          options.columns = options.columns.map(column => {
+            if (column.nowrap) {
+              column.noWrap = column.nowrap
+              delete column.nowrap
+            }
+            return column
+          })
+        }
+
+        const table = new Table(
+          content.data.map(row => ansiFormatRow(row)),
+          options
+        )
+        return table.renderLines()
+      } else {
+        const message = `invalid input - 'content' must be a string, array of strings, or array of plain objects:\n\n${JSON.stringify(content)}`
+        throw new Error(message)
+      }
+    }
+  }
+}
+
+function ansiFormatRow (row) {
+  for (const key in row) {
+    row[key] = ansi.format(row[key])
+  }
+  return row
+}
+
+module.exports = Content