Initial Save

node_modules/graphql/language/blockString.js

@@ -0,0 +1,105 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.dedentBlockStringValue = dedentBlockStringValue;
+exports.getBlockStringIndentation = getBlockStringIndentation;
+exports.printBlockString = printBlockString;
+
+/**
+ * Produces the value of a block string from its parsed raw value, similar to
+ * CoffeeScript's block string, Python's docstring trim or Ruby's strip_heredoc.
+ *
+ * This implements the GraphQL spec's BlockStringValue() static algorithm.
+ */
+function dedentBlockStringValue(rawString) {
+  // Expand a block string's raw value into independent lines.
+  var lines = rawString.split(/\r\n|[\n\r]/g); // Remove common indentation from all lines but first.
+
+  var commonIndent = getBlockStringIndentation(lines);
+
+  if (commonIndent !== 0) {
+    for (var i = 1; i < lines.length; i++) {
+      lines[i] = lines[i].slice(commonIndent);
+    }
+  } // Remove leading and trailing blank lines.
+
+
+  while (lines.length > 0 && isBlank(lines[0])) {
+    lines.shift();
+  }
+
+  while (lines.length > 0 && isBlank(lines[lines.length - 1])) {
+    lines.pop();
+  } // Return a string of the lines joined with U+000A.
+
+
+  return lines.join('\n');
+} // @internal
+
+
+function getBlockStringIndentation(lines) {
+  var commonIndent = null;
+
+  for (var i = 1; i < lines.length; i++) {
+    var line = lines[i];
+    var indent = leadingWhitespace(line);
+
+    if (indent === line.length) {
+      continue; // skip empty lines
+    }
+
+    if (commonIndent === null || indent < commonIndent) {
+      commonIndent = indent;
+
+      if (commonIndent === 0) {
+        break;
+      }
+    }
+  }
+
+  return commonIndent === null ? 0 : commonIndent;
+}
+
+function leadingWhitespace(str) {
+  var i = 0;
+
+  while (i < str.length && (str[i] === ' ' || str[i] === '\t')) {
+    i++;
+  }
+
+  return i;
+}
+
+function isBlank(str) {
+  return leadingWhitespace(str) === str.length;
+}
+/**
+ * Print a block string in the indented block form by adding a leading and
+ * trailing blank line. However, if a block string starts with whitespace and is
+ * a single-line, adding a leading blank line would strip that whitespace.
+ */
+
+
+function printBlockString(value) {
+  var indentation = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
+  var preferMultipleLines = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;
+  var isSingleLine = value.indexOf('\n') === -1;
+  var hasLeadingSpace = value[0] === ' ' || value[0] === '\t';
+  var hasTrailingQuote = value[value.length - 1] === '"';
+  var printAsMultipleLines = !isSingleLine || hasTrailingQuote || preferMultipleLines;
+  var result = ''; // Format a multi-line block quote to account for leading space.
+
+  if (printAsMultipleLines && !(isSingleLine && hasLeadingSpace)) {
+    result += '\n' + indentation;
+  }
+
+  result += indentation ? value.replace(/\n/g, '\n' + indentation) : value;
+
+  if (printAsMultipleLines) {
+    result += '\n';
+  }
+
+  return '"""' + result.replace(/"""/g, '\\"""') + '"""';
+}