Initial commit

node_modules/pug-strip-comments/index.js

@@ -0,0 +1,77 @@
+'use strict';
+
+var error = require('pug-error');
+
+module.exports = stripComments;
+
+function unexpectedToken(type, occasion, filename, line) {
+  var msg = '`' + type + '` encountered when ' + occasion;
+  throw error('UNEXPECTED_TOKEN', msg, {filename: filename, line: line});
+}
+
+function stripComments(input, options) {
+  options = options || {};
+
+  // Default: strip unbuffered comments and leave buffered ones alone
+  var stripUnbuffered = options.stripUnbuffered !== false;
+  var stripBuffered = options.stripBuffered === true;
+  var filename = options.filename;
+
+  var out = [];
+  // If we have encountered a comment token and are not sure if we have gotten
+  // out of the comment or not
+  var inComment = false;
+  // If we are sure that we are in a block comment and all tokens except
+  // `end-pipeless-text` should be ignored
+  var inPipelessText = false;
+
+  return input.filter(function(tok) {
+    switch (tok.type) {
+      case 'comment':
+        if (inComment) {
+          unexpectedToken(
+            'comment',
+            'already in a comment',
+            filename,
+            tok.line
+          );
+        } else {
+          inComment = tok.buffer ? stripBuffered : stripUnbuffered;
+          return !inComment;
+        }
+      case 'start-pipeless-text':
+        if (!inComment) return true;
+        if (inPipelessText) {
+          unexpectedToken(
+            'start-pipeless-text',
+            'already in pipeless text mode',
+            filename,
+            tok.line
+          );
+        }
+        inPipelessText = true;
+        return false;
+      case 'end-pipeless-text':
+        if (!inComment) return true;
+        if (!inPipelessText) {
+          unexpectedToken(
+            'end-pipeless-text',
+            'not in pipeless text mode',
+            filename,
+            tok.line
+          );
+        }
+        inPipelessText = false;
+        inComment = false;
+        return false;
+      // There might be a `text` right after `comment` but before
+      // `start-pipeless-text`. Treat it accordingly.
+      case 'text':
+        return !inComment;
+      default:
+        if (inPipelessText) return false;
+        inComment = false;
+        return true;
+    }
+  });
+}