update elements and fix some bugs

lib/src/prism/components/prism-sas.js

 Prism.languages.sas = {
         'datalines': {
-                pattern: /(^|[\r\n])\s*(?:(?:data)?lines|cards);[\s\S]+?[\r\n];/i,
-                lookbehind: true,
+                pattern: /^\s*(?:(?:data)?lines|cards);[\s\S]+?(?:\r?\n|\r);/im,
+                alias: 'string',
                 inside: {
                         'keyword': {
                                 pattern: /^(\s*)(?:(?:data)?lines|cards)/i,
                                 lookbehind: true
                         },
-                        'punctuation': /;/,
-                        'data': {
-                                pattern: /[\s\S]+/,
-                                alias: 'string'
-                        }
+                        'punctuation': /;/
                 }
         },
         'comment': [
                 {
                         pattern: /(^\s*|;\s*)\*.*;/m,
                         lookbehind: true
                 },
                 /\/\*[\s\S]+?\*\//
         ],
         'datetime': {
                 // '1jan2013'd, '9:25:19pm't, '18jan2003:9:27:05am'dt
-                pattern: /'[^']+'(?:d|d?t)\b/i,
+                pattern: /'[^']+'(?:dt?|t)\b/i,
                 alias: 'number'
         },
         'string': /(["'])(?:\1\1|(?!\1)[\s\S])*\1/,
         'keyword': /\b(?:data|else|format|if|input|proc|run|then)\b/i,
         // Decimal (1.2e23), hexadecimal (0c1x)
         'number': /(?:\B-|\b)(?:[\da-f]+x|\d+(?:\.\d+)?(?:e[+-]?\d+)?)/i,
-        'operator': /\*\*|\|\||!!|¦¦|<>|><|[~¬^<>]?=|[*\/+\-<>&\|!¦~¬^]|\b(?:eq|ne|gt|lt|ge|le|in|not)\b/i,
+        'operator': /\*\*?|\|\|?|!!?|¦¦?|<[>=]?|>[<=]?|[-+\/=&]|[~¬^]=?|\b(?:eq|ne|gt|lt|ge|le|in|not)\b/i,
         'punctuation': /[$%@.(){}\[\];,\\]/
 };