// Copyright (C) 2006 Google Inc. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License.
/** * @fileoverview * some functions for browser-side pretty printing of code contained in html. * * <p> * For a fairly comprehensive set of languages see the * <a href="http://google-code-prettify.googlecode.com/svn/trunk/README.html#langs">README</a> * file that came with this source. At a minimum, the lexer should work on a * number of languages including C and friends, Java, Python, Bash, SQL, HTML, * XML, CSS, Javascript, and Makefiles. It works passably on Ruby, PHP and Awk * and a subset of Perl, but, because of commenting conventions, doesn't work on * Smalltalk, Lisp-like, or CAML-like languages without an explicit lang class. * <p> * Usage: <ol> * <li> include this source file in an html page via * {@code <script type="text/javascript" src="/path/to/prettify.js"></script>} * <li> define style rules. See the example page for examples. * <li> mark the {@code <pre>} and {@code <code>} tags in your source with * {@code class=prettyprint.} * You can also use the (html deprecated) {@code <xmp>} tag, but the pretty * printer needs to do more substantial DOM manipulations to support that, so * some css styles may not be preserved. * </ol> * That's it. I wanted to keep the API as simple as possible, so there's no * need to specify which language the code is in, but if you wish, you can add * another class to the {@code <pre>} or {@code <code>} element to specify the * language, as in {@code <pre class="prettyprint lang-java">}. Any class that * starts with "lang-" followed by a file extension, specifies the file type. * See the "lang-*.js" files in this directory for code that implements * per-language file handlers. * <p> * Change log:<br> * cbeust, 2006/08/22 * <blockquote> * Java annotations (start with "@") are now captured as literals ("lit") * </blockquote> * @requires console
*/
/** * Split {@code prettyPrint} into multiple timeouts so as not to interfere with * UI events. * If set to {@code false}, {@code prettyPrint()} is synchronous.
*/
window['PR_SHOULD_USE_CONTINUATION'] = true;
/** * Find all the {@code <pre>} and {@code <code>} tags in the DOM with * {@code class=prettyprint} and prettify them. * * @param {Function?} opt_whenDone if specified, called when the last entry * has been finished.
*/ var prettyPrintOne; /** * Pretty print a chunk of code. * * @param {string} sourceCodeHtml code as html * @return {string} code as html, but prettier
*/ var prettyPrint;
(function () { var win = window; // Keyword lists for various languages. // We use things that coerce to strings to make them compact when minified // and to defeat aggressive optimizers that fold large string constants. var FLOW_CONTROL_KEYWORDS = ["break,continue,do,else,for,if,return,while"]; var C_KEYWORDS = [FLOW_CONTROL_KEYWORDS,"auto,case,char,const,default," + "double,enum,extern,float,goto,int,long,register,short,signed,sizeof,module," + "static,struct,switch,typedef,union,unsigned,void,volatile"]; var COMMON_KEYWORDS = [C_KEYWORDS,"catch,class,delete,false,import," + "new,operator,private,protected,public,this,throw,true,try,typeof"]; var CPP_KEYWORDS = [COMMON_KEYWORDS,"alignof,align_union,asm,axiom,bool," + "concept,concept_map,const_cast,constexpr,decltype," + "dynamic_cast,explicit,export,friend,inline,late_check," + "mutable,namespace,nullptr,reinterpret_cast,static_assert,static_cast," + "template,typeid,typename,using,virtual,where,request_req"]; var JAVA_KEYWORDS = [COMMON_KEYWORDS, "abstract,boolean,byte,extends,final,finally,implements,import," + "instanceof,null,native,package,strictfp,super,synchronized,throws," + "transient"]; var CSHARP_KEYWORDS = [JAVA_KEYWORDS, "as,base,by,checked,decimal,delegate,descending,dynamic,event," + "fixed,foreach,from,group,implicit,in,interface,internal,into,is,let," + "lock,object,out,override,orderby,params,partial,readonly,ref,sbyte," + "sealed,stackalloc,string,select,uint,ulong,unchecked,unsafe,ushort," + "var,virtual,where"]; var COFFEE_KEYWORDS = "all,and,by,catch,class,else,extends,false,finally," + "for,if,in,is,isnt,loop,new,no,not,null,of,off,on,or,return,super,then," + "throw,true,try,unless,until,when,while,yes"; var JSCRIPT_KEYWORDS = [COMMON_KEYWORDS, "debugger,eval,export,function,get,null,set,undefined,var,with," + "Infinity,NaN"]; var PERL_KEYWORDS = "caller,delete,die,do,dump,else,elsif,eval,exit,foreach,for," + "goto,if,import,last,local,my,next,no,our,print,printf,package,redo,require," + "sub,undef,unless,until,use,wantarray,while,BEGIN,END"; var PHP_KEYWORDS = "abstract,and,array,as,break,case,catch,cfunction,class," + "clone,const,continue,declare,default,do,else,elseif,enddeclare,endfor," + "endforeach,endif,endswitch,endwhile,extends,final,for,foreach,function," + "global,goto,if,implements,interface,instanceof,namespace,new,old_function," + "or,private,protected,public,static,switch,throw,try,use,var,while,xor," + "die,echo,empty,exit,eval,include,include_once,isset,list,require," + "require_once,return,print,unset"; var PYTHON_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "and,as,assert,class,def,del," + "elif,except,exec,finally,from,global,import,in,is,lambda," + "nonlocal,not,or,pass,print,raise,try,with,yield," + "False,True,None"]; var RUBY_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "alias,and,begin,case,class," + "def,defined,elsif,end,ensure,false,in,module,next,nil,not,or,redo," + "rescue,retry,self,super,then,true,undef,unless,until,when,yield," + "BEGIN,END"]; var SH_KEYWORDS = [FLOW_CONTROL_KEYWORDS, "case,done,elif,esac,eval,fi," + "function,in,local,set,then,until,echo"]; var CONFIG_ENVS = ["User-Agent,HTTP_USER_AGENT,HTTP_REFERER,HTTP_COOKIE,HTTP_FORWARDED,HTTP_HOST,HTTP_PROXY_CONNECTION,HTTP_ACCEPT,REMOTE_ADDR,REMOTE_HOST,REMOTE_PORT,REMOTE_USER,REMOTE_IDENT,REQUEST_METHOD,SCRIPT_FILENAME,PATH_INFO,QUERY_STRING,AUTH_TYPE,DOCUMENT_ROOT,SERVER_ADMIN,SERVER_NAME,SERVER_ADDR,SERVER_PORT,SERVER_PROTOCOL,SERVER_SOFTWARE,TIME_YEAR,TIME_MON,TIME_DAY,TIME_HOUR,TIME_MIN,TIME_SEC,TIME_WDAY,TIME,API_VERSION,THE_REQUEST,REQUEST_URI,REQUEST_FILENAME,IS_SUBREQ,HTTPS,REQUEST_SCHEME"]; var CONFIG_KEYWORDS = ["AcceptFilter,AcceptPathInfo,AccessFileName,Action,AddAlt,AddAltByEncoding,AddAltByType,AddCharset,AddDefaultCharset,AddDescription,AddEncoding,AddHandler,AddIcon,AddIconByEncoding,AddIconByType,AddInputFilter,AddLanguage,AddModuleInfo,AddOutputFilter,AddOutputFilterByType,AddType,Alias,AliasMatch,Allow,AllowCONNECT,AllowEncodedSlashes,AllowMethods,AllowOverride,AllowOverrideList,Anonymous,Anonymous_LogEmail,Anonymous_MustGiveEmail,Anonymous_NoUserID,Anonymous_VerifyEmail,AsyncRequestWorkerFactor,AuthBasicAuthoritative,AuthBasicFake,AuthBasicProvider,AuthBasicUseDigestAlgorithm,AuthDBDUserPWQuery,AuthDBDUserRealmQuery,AuthDBMGroupFile,AuthDBMType,AuthDBMUserFile,AuthDigestAlgorithm,AuthDigestDomain,AuthDigestNonceLifetime,AuthDigestProvider,AuthDigestQop,AuthDigestShmemSize,AuthFormAuthoritative,AuthFormBody,AuthFormDisableNoStore,AuthFormFakeBasicAuth,AuthFormLocation,AuthFormLoginRequiredLocation,AuthFormLoginSuccessLocation,AuthFormLogoutLocation,AuthFormMethod,AuthFormMimetype,AuthFormPassword,AuthFormProvider,AuthFormSitePassphrase,AuthFormSize,AuthFormUsername,AuthGroupFile,AuthLDAPAuthorizePrefix,AuthLDAPBindAuthoritative,AuthLDAPBindDN,AuthLDAPBindPassword,AuthLDAPCharsetConfig,AuthLDAPCompareAsUser,AuthLDAPCompareDNOnServer,AuthLDAPDereferenceAliases,AuthLDAPGroupAttribute,AuthLDAPGroupAttributeIsDN,AuthLDAPInitialBindAsUser,AuthLDAPInitialBindPattern,AuthLDAPMaxSubGroupDepth,AuthLDAPRemoteUserAttribute,AuthLDAPRemoteUserIsDN,AuthLDAPSearchAsUser,AuthLDAPSubGroupAttribute,AuthLDAPSubGroupClass,AuthLDAPURL,AuthMerging,AuthName,AuthnCacheContext,AuthnCacheEnable,AuthnCacheProvideFor,AuthnCacheSOCache,AuthnCacheTimeout,,AuthnzFcgiCheckAuthnProvider,AuthnzFcgiDefineProvider,AuthType,AuthUserFile,AuthzDBDLoginToReferer,AuthzDBDQuery,AuthzDBDRedirectQuery,AuthzDBMType,,AuthzSendForbiddenOnFailure,BalancerGrowth,BalancerInherit,BalancerMember,BalancerPersist,BrotliAlterETag,BrotliCompressionMaxInputBlock,BrotliCompressionQuality,BrotliCompressionWindow,BrotliFilterNote,BrowserMatch,BrowserMatchNoCase,BufferedLogs,BufferSize,CacheDefaultExpire,CacheDetailHeader,CacheDirLength,CacheDirLevels,CacheDisable,CacheEnable,CacheFile,CacheHeader,CacheIgnoreCacheControl,CacheIgnoreHeaders,CacheIgnoreNoLastMod,CacheIgnoreQueryString,CacheIgnoreURLSessionIdentifiers,CacheKeyBaseURL,CacheLastModifiedFactor,CacheLock,CacheLockMaxAge,CacheLockPath,CacheMaxExpire,CacheMaxFileSize,CacheMinExpire,CacheMinFileSize,CacheNegotiatedDocs,CacheQuickHandler,CacheReadSize,CacheReadTime,CacheRoot,CacheSocache,CacheSocacheMaxSize,CacheSocacheMaxTime,CacheSocacheMinTime,CacheSocacheReadSize,CacheSocacheReadTime,CacheStaleOnError,CacheStoreExpired,CacheStoreNoStore,CacheStorePrivate,CGIDScriptTimeout,CGIMapExtension,CGIPassAuth,CGIScriptTimeout,CGIVar,CharsetDefault,CharsetOptions,CharsetSourceEnc,CheckBasenameMatch,CheckCaseOnly,CheckSpelling,ChrootDir,ContentDigest,CookieDomain,CookieExpires,CookieHTTPOnly,CookieName,CookieSameSite,CookieSecure,CookieStyle,CookieTracking,CoreDumpDirectory,CustomLog,Dav,DavBasePath,DavDepthInfinity,DavGenericLockDB,DavLockDB,DavLockDiscovery,DavMinTimeout,DBDExptime,DBDInitSQL,DBDKeep,DBDMax,DBDMin,DBDParams,DBDPersist,DBDPrepareSQL,DBDriver,DefaultIcon,DefaultLanguage,DefaultRuntimeDir,DefaultType,Define,DeflateAlterETag,DeflateBufferSize,DeflateCompressionLevel,DeflateFilterNote,DeflateInflateLimitRequestBody,DeflateInflateRatioBurst,DeflateInflateRatioLimit,DeflateMemLevel,DeflateWindowSize,Deny,,DirectoryCheckHandler,DirectoryIndex,DirectoryIndexRedirect,,DirectorySlash,DocumentRoot,DTracePrivileges,DumpIOInput,DumpIOOutput,,,EnableExceptionHook,EnableMMAP,EnableSendfile,Error,ErrorDocument,ErrorLog,ErrorLogFormat,Example,ExpiresActive,ExpiresByType,ExpiresDefault,ExtendedStatus,ExtFilterDefine,ExtFilterOptions,FallbackResource,FileETag,,,FilterChain,FilterDeclare,FilterProtocol,FilterProvider,FilterTrace,FlushMaxPipelined,FlushMaxThreshold,ForceLanguagePriority,ForceType,ForensicLog,GlobalLog,GprofDir,GracefulShutdownTimeout,Group,H2CopyFiles,H2Direct,H2EarlyHint,H2EarlyHints,H2MaxDataFrameLen,H2MaxSessionStreams,H2MaxWorkerIdleSeconds,H2MaxWorkers,H2MinWorkers,H2ModernTLSOnly,H2OutputBuffering,H2Padding,H2ProxyRequests,H2Push,H2PushDiarySize,H2PushPriority,H2PushResource,H2SerializeHeaders,H2StreamMaxMemSize,H2StreamTimeout,H2TLSCoolDownSecs,H2TLSWarmUpSize,H2Upgrade,H2WebSockets,H2WindowSize,Header,HeaderName,HeartbeatAddress,HeartbeatListen,HeartbeatMaxServers,HeartbeatStorage,HeartbeatStorage,HostnameLookups,HttpProtocolOptions,IdentityCheck,IdentityCheckTimeout,,,,,,,,ImapBase,ImapDefault,ImapMenu,Include,IncludeOptional,IndexHeadInsert,IndexIgnore,IndexIgnoreReset,IndexOptions,IndexOrderDefault,IndexStyleSheet,InputSed,ISAPIAppendLogToErrors,ISAPIAppendLogToQuery,ISAPICacheFile,ISAPIFakeAsync,ISAPILogNotSupported,ISAPIReadAheadBuffer,KeepAlive,KeepAliveTimeout,KeptBodySize,LanguagePriority,LDAPCacheEntries,LDAPCacheTTL,LDAPConnectionPoolTTL,LDAPConnectionTimeout,LDAPLibraryDebug,LDAPOpCacheEntries,LDAPOpCacheTTL,LDAPReferralHopLimit,LDAPReferrals,LDAPRetries,LDAPRetryDelay,LDAPSharedCacheFile,LDAPSharedCacheSize,LDAPTimeout,LDAPTrustedClientCert,LDAPTrustedGlobalCert,LDAPTrustedMode,LDAPVerifyServerCert,,,LimitInternalRecursion,LimitRequestBody,LimitRequestFields,LimitRequestFieldSize,LimitRequestLine,LimitXMLRequestBody,Listen,ListenBackLog,ListenCoresBucketsRatio,LoadFile,LoadModule,,,LogFormat,LogIOTrackTTFB,LogLevel,LogMessage,LuaAuthzProvider,LuaCodeCache,LuaHookAccessChecker,LuaHookAuthChecker,LuaHookCheckUserID,LuaHookFixups,LuaHookInsertFilter,LuaHookLog,LuaHookMapToStorage,LuaHookPreTranslate,LuaHookTranslateName,LuaHookTypeChecker,LuaInherit,LuaInputFilter,LuaMapHandler,LuaOutputFilter,LuaPackageCPath,LuaPackagePath,LuaQuickHandler,LuaRoot,LuaScope,,MaxConnectionsPerChild,MaxKeepAliveRequests,MaxMemFree,MaxRangeOverlaps,MaxRangeReversals,MaxRanges,MaxRequestWorkers,MaxSpareServers,MaxSpareThreads,MaxThreads,MDActivationDelay,MDBaseServer,MDCAChallenges,MDCertificateAgreement,MDCertificateAuthority,MDCertificateCheck,MDCertificateFile,MDCertificateKeyFile,MDCertificateMonitor,MDCertificateProtocol,MDCertificateStatus,MDChallengeDns01,MDChallengeDns01Version,MDContactEmail,MDDriveMode,MDExternalAccountBinding,MDHttpProxy,MDMatchNames,MDMember,MDMembers,MDMessageCmd,MDMustStaple,MDNotifyCmd,MDomain,,MDPortMap,MDPrivateKeys,MDRenewMode,MDRenewWindow,MDRequireHttps,MDRetryDelay,MDRetryFailover,MDServerStatus,MDStapleOthers,MDStapling,MDStaplingKeepResponse,MDStaplingRenewWindow,MDStoreDir,MDStoreLocks,MDWarnWindow,MemcacheConnTTL,MergeSlashes,MergeTrailers,MetaDir,MetaFiles,MetaSuffix,MimeMagicFile,MinSpareServers,MinSpareThreads,MMapFile,ModemStandard,ModMimeUsePathInfo,MultiviewsMatch,Mutex,NameVirtualHost,NoProxy,NWSSLTrustedCerts,NWSSLUpgradeable,Options,Order,OutputSed,PassEnv,PidFile,PrivilegesMode,Protocol,ProtocolEcho,Protocols,ProtocolsHonorOrder,,Proxy100Continue,ProxyAddHeaders,ProxyBadHeader,ProxyBlock,ProxyDomain,ProxyErrorOverride,ProxyExpressDBMFile,ProxyExpressDBMType,ProxyExpressEnable,ProxyFCGIBackendType,ProxyFCGISetEnvIf,ProxyFtpDirCharset,ProxyFtpEscapeWildcards,ProxyFtpListOnWildcard,ProxyHCExpr,ProxyHCTemplate,ProxyHCTPsize,ProxyHTMLBufSize,ProxyHTMLCharsetOut,ProxyHTMLDocType,ProxyHTMLEnable,ProxyHTMLEvents,ProxyHTMLExtended,ProxyHTMLFixups,ProxyHTMLInterp,ProxyHTMLLinks,ProxyHTMLMeta,ProxyHTMLStripComments,ProxyHTMLURLMap,ProxyIOBufferSize,,ProxyMaxForwards,ProxyPass,ProxyPassInherit,ProxyPassInterpolateEnv,ProxyPassMatch,ProxyPassReverse,ProxyPassReverseCookieDomain,ProxyPassReverseCookiePath,ProxyPreserveHost,ProxyReceiveBufferSize,ProxyRemote,ProxyRemoteMatch,ProxyRequests,ProxySCGIInternalRedirect,ProxySCGISendfile,ProxySet,ProxySourceAddress,ProxyStatus,ProxyTimeout,ProxyVia,ProxyWebsocketFallbackToProxyHttp,QualifyRedirectURL,ReadBufferSize,ReadmeName,ReceiveBufferSize,Redirect,RedirectMatch,RedirectPermanent,RedirectRelative,RedirectTemp,RedisConnPoolTTL,RedisTimeout,ReflectorHeader,RegexDefaultOptions,RegisterHttpMethod,RemoteIPHeader,RemoteIPInternalProxy,RemoteIPInternalProxyList,RemoteIPProxiesHeader,RemoteIPProxyProtocol,RemoteIPProxyProtocolExceptions,RemoteIPTrustedProxy,RemoteIPTrustedProxyList,RemoveCharset,RemoveEncoding,RemoveHandler,RemoveInputFilter,RemoveLanguage,RemoveOutputFilter,RemoveType,RequestHeader,RequestReadTimeout,Require,,,,RewriteBase,RewriteCond,RewriteEngine,RewriteMap,RewriteOptions,RewriteRule,RLimitCPU,RLimitMEM,RLimitNPROC,Satisfy,ScoreBoardFile,Script,ScriptAlias,ScriptAliasMatch,ScriptInterpreterSource,ScriptLog,ScriptLogBuffer,ScriptLogLength,ScriptSock,SecureListen,SeeRequestTail,SendBufferSize,ServerAdmin,ServerAlias,ServerLimit,ServerName,ServerPath,ServerRoot,ServerSignature,ServerTokens,Session,SessionCookieName,SessionCookieName2,SessionCookieRemove,SessionCryptoCipher,SessionCryptoDriver,SessionCryptoPassphrase,SessionCryptoPassphraseFile,SessionDBDCookieName,SessionDBDCookieName2,SessionDBDCookieRemove,SessionDBDDeleteLabel,SessionDBDInsertLabel,SessionDBDPerUser,SessionDBDSelectLabel,SessionDBDUpdateLabel,SessionEnv,SessionExclude,SessionExpiryUpdateInterval,SessionHeader,SessionInclude,SessionMaxAge,SetEnv,SetEnvIf,SetEnvIfExpr,SetEnvIfNoCase,SetHandler,SetInputFilter,SetOutputFilter,SSIEndTag,SSIErrorMsg,SSIETag,SSILastModified,SSILegacyExprParser,SSIStartTag,SSITimeFormat,SSIUndefinedEcho,SSLCACertificateFile,SSLCACertificatePath,SSLCADNRequestFile,SSLCADNRequestPath,SSLCARevocationCheck,SSLCARevocationFile,SSLCARevocationPath,SSLCertificateChainFile,SSLCertificateFile,SSLCertificateKeyFile,SSLCipherSuite,SSLCompression,SSLCryptoDevice,SSLEngine,SSLFIPS,SSLHonorCipherOrder,SSLInsecureRenegotiation,SSLOCSPDefaultResponder,SSLOCSPEnable,SSLOCSPNoverify,SSLOCSPOverrideResponder,SSLOCSPProxyURL,SSLOCSPResponderCertificateFile,SSLOCSPResponderTimeout,SSLOCSPResponseMaxAge,SSLOCSPResponseTimeSkew,SSLOCSPUseRequestNonce,SSLOpenSSLConfCmd,SSLOptions,SSLPassPhraseDialog,SSLProtocol,SSLProxyCACertificateFile,SSLProxyCACertificatePath,SSLProxyCARevocationCheck,SSLProxyCARevocationFile,SSLProxyCARevocationPath,SSLProxyCheckPeerCN,SSLProxyCheckPeerExpire,SSLProxyCheckPeerName,SSLProxyCipherSuite,SSLProxyEngine,SSLProxyMachineCertificateChainFile,SSLProxyMachineCertificateFile,SSLProxyMachineCertificatePath,SSLProxyProtocol,SSLProxyVerify,SSLProxyVerifyDepth,SSLRandomSeed,SSLRenegBufferSize,SSLRequire,SSLRequireSSL,SSLSessionCache,SSLSessionCacheTimeout,SSLSessionTicketKeyFile,SSLSessionTickets,SSLSRPUnknownUserSeed,SSLSRPVerifierFile,SSLStaplingCache,SSLStaplingErrorCacheTimeout,SSLStaplingFakeTryLater,SSLStaplingForceURL,SSLStaplingResponderTimeout,SSLStaplingResponseMaxAge,SSLStaplingResponseTimeSkew,SSLStaplingReturnResponderErrors,SSLStaplingStandardCacheTimeout,SSLStrictSNIVHostCheck,SSLUserName,SSLUseStapling,SSLVerifyClient,SSLVerifyDepth,StartServers,StartThreads,StrictHostCheck,Substitute,SubstituteInheritBefore,SubstituteMaxLineLength,Suexec,SuexecUserGroup,ThreadLimit,ThreadsPerChild,ThreadStackSize,TimeOut,TraceEnable,TransferLog,TypesConfig,UNCList,UnDefine,UndefMacro,UnsetEnv,Use,UseCanonicalName,UseCanonicalPhysicalPort,User,UserDir,VHostCGIMode,VHostCGIPrivs,VHostGroup,VHostPrivs,VHostSecure,VHostUser,VirtualDocumentRoot,VirtualDocumentRootIP,,VirtualScriptAlias,VirtualScriptAliasIP,WatchdogInterval,XBitHack,xml2EncAlias,xml2EncDefault,xml2StartParse"]; var CONFIG_OPTIONS = /^[\\+\\-]?(AuthConfig|IncludesNOEXEC|ExecCGI|FollowSymLinks|MultiViews|Includes|Indexes|SymLinksIfOwnerMatch)\b/i; var ALL_KEYWORDS = [
CPP_KEYWORDS, CSHARP_KEYWORDS, JSCRIPT_KEYWORDS, PERL_KEYWORDS +
PYTHON_KEYWORDS, RUBY_KEYWORDS, SH_KEYWORDS, CONFIG_KEYWORDS, PHP_KEYWORDS]; var C_TYPES = /^(DIR|FILE|vector|(de|priority_)?queue|list|stack|(const_)?iterator|(multi)?(set|map)|bitset|u?(int|float|char|void|const|static|struct)\d*(_t)?\b)|[a-z_]+_rec|cmd_parms\b/;
// token style names. correspond to css classes /** * token style for a string literal * @const
*/ var PR_STRING = 'str'; /** * token style for a keyword * @const
*/ var PR_KEYWORD = 'kwd'; /** * token style for a comment * @const
*/ var PR_COMMENT = 'com'; /** * token style for a type * @const
*/ var PR_TYPE = 'typ'; /** * token style for a literal value. e.g. 1, null, true. * @const
*/ var PR_LITERAL = 'lit'; /** * token style for a punctuation string. * @const
*/ var PR_PUNCTUATION = 'pun'; /** * token style for plain text. * @const
*/ var PR_PLAIN = 'pln';
/** * token style for an sgml tag. * @const
*/ var PR_TAG = 'tag'; /** * token style for a markup declaration such as a DOCTYPE. * @const
*/ var PR_DECLARATION = 'dec'; /** * token style for embedded source. * @const
*/ var PR_SOURCE = 'src'; /** * token style for an sgml attribute name. * @const
*/ var PR_ATTRIB_NAME = 'atn'; /** * token style for an sgml attribute value. * @const
*/ var PR_ATTRIB_VALUE = 'atv';
/** * A class that indicates a section of markup that is not code, e.g. to allow * embedding of line numbers within code listings. * @const
*/ var PR_NOCODE = 'nocode';
/** * A set of tokens that can precede a regular expression literal in * javascript * http://web.archive.org/web/20070717142515/http://www.mozilla.org/js/language/js20/rationale/syntax.html * has the full list, but I've removed ones that might be problematic when * seen in languages that don't support regular expression literals. * * <p>Specifically, I've removed any keywords that can't precede a regexp * literal in a syntactically legal javascript program, and I've removed the * "in" keyword since it's not a keyword in many languages, and might be used * as a count of inches. * * <p>The link above does not accurately describe EcmaScript rules since * it fails to distinguish between (a=++/b/i) and (a++/b/i) but it works * very well in practice. * * @private * @const
*/ var REGEXP_PRECEDER_PATTERN = '(?:^^\\.?|[+-]|[!=]=?=?|\\#|%=?|&&?=?|\\(|\\*=?|[+\\-]=|->|\\/=?|::?|<=?|>>?>?=?|,|;|\\?|@|\\[|~|{|\\^\\^?=?|\\|\\|?=?|break|case|continue|delete|do|else|finally|instanceof|return|throw|try|typeof)\\s*';
// CAVEAT: this does not properly handle the case where a regular // expression immediately follows another since a regular expression may // have flags for case-sensitivity and the like. Having regexp tokens // adjacent is not valid in any language I'm aware of, so I'm punting. // TODO: maybe style special characters inside a regexp as punctuation.
/** * Given a group of {@link RegExp}s, returns a {@code RegExp} that globally * matches the union of the sets of strings matched by the input RegExp. * Since it matches globally, if the input strings have a start-of-input * anchor (/^.../), it is ignored for the purposes of unioning. * @param {Array.<RegExp>} regexs non multiline, non-global regexs. * @return {RegExp} a global regex.
*/ function combinePrefixPatterns(regexs) { var capturedGroupIndex = 0;
var needToFoldCase = false; var ignoreCase = false; for (var i = 0, n = regexs.length; i < n; ++i) { var regex = regexs[i]; if (regex.ignoreCase) {
ignoreCase = true;
} elseif (/[a-z]/i.test(regex.source.replace(
/\\u[0-9a-f]{4}|\\x[0-9a-f]{2}|\\[^ux]/gi, ''))) {
needToFoldCase = true;
ignoreCase = false; break;
}
}
function caseFoldCharset(charSet) { var charsetParts = charSet.substring(1, charSet.length - 1).match( new RegExp( '\\\\u[0-9A-Fa-f]{4}'
+ '|\\\\x[0-9A-Fa-f]{2}'
+ '|\\\\[0-3][0-7]{0,2}'
+ '|\\\\[0-7]{1,2}'
+ '|\\\\[\\s\\S]'
+ '|-'
+ '|[^-\\\\]', 'g')); var ranges = []; var inverse = charsetParts[0] === '^';
var out = ['[']; if (inverse) { out.push('^'); }
for (var i = inverse ? 1 : 0, n = charsetParts.length; i < n; ++i) { var p = charsetParts[i]; if (/\\[bdsw]/i.test(p)) { // Don't muck with named groups.
out.push(p);
} else { var start = decodeEscape(p); var end; if (i + 2 < n && '-' === charsetParts[i + 1]) {
end = decodeEscape(charsetParts[i + 2]);
i += 2;
} else {
end = start;
}
ranges.push([start, end]); // If the range might intersect letters, then expand it. // This case handling is too simplistic. // It does not deal with non-latin case folding. // It works for latin source code identifiers though. if (!(end < 65 || start > 122)) { if (!(end < 65 || start > 90)) {
ranges.push([Math.max(65, start) | 32, Math.min(end, 90) | 32]);
} if (!(end < 97 || start > 122)) {
ranges.push([Math.max(97, start) & ~32, Math.min(end, 122) & ~32]);
}
}
}
}
// [[1, 10], [3, 4], [8, 12], [14, 14], [16, 16], [17, 17]] // -> [[1, 12], [14, 14], [16, 17]]
ranges.sort(function (a, b) { return (a[0] - b[0]) || (b[1] - a[1]); }); var consolidatedRanges = []; var lastRange = []; for (var i = 0; i < ranges.length; ++i) { var range = ranges[i]; if (range[0] <= lastRange[1] + 1) {
lastRange[1] = Math.max(lastRange[1], range[1]);
} else {
consolidatedRanges.push(lastRange = range);
}
}
for (var i = 0; i < consolidatedRanges.length; ++i) { var range = consolidatedRanges[i];
out.push(encodeEscape(range[0])); if (range[1] > range[0]) { if (range[1] + 1 > range[0]) { out.push('-'); }
out.push(encodeEscape(range[1]));
}
}
out.push(']'); return out.join('');
}
function allowAnywhereFoldCaseAndRenumberGroups(regex) { // Split into character sets, escape sequences, punctuation strings // like ('(', '(?:', ')', '^'), and runs of characters that do not // include any of the above. var parts = regex.source.match( new RegExp( '(?:'
+ '\\[(?:[^\\x5C\\x5D]|\\\\[\\s\\S])*\\]'// a character set
+ '|\\\\u[A-Fa-f0-9]{4}'// a unicode escape
+ '|\\\\x[A-Fa-f0-9]{2}'// a hex escape
+ '|\\\\[0-9]+'// a back-reference or octal escape
+ '|\\\\[^ux0-9]'// other escape sequence
+ '|\\(\\?[:!=]'// start of a non-capturing group
+ '|[\\(\\)\\^]'// start/end of a group, or line start
+ '|[^\\x5B\\x5C\\(\\)\\^]+'// run of other characters
+ ')', 'g')); var n = parts.length;
// Maps captured group numbers to the number they will occupy in // the output or to -1 if that has not been determined, or to // undefined if they need not be capturing in the output. var capturedGroups = [];
// Walk over and identify back references to build the capturedGroups // mapping. for (var i = 0, groupIndex = 0; i < n; ++i) { var p = parts[i]; if (p === '(') { // groups are 1-indexed, so max group index is count of '('
++groupIndex;
} elseif ('\\' === p.charAt(0)) { var decimalValue = +p.substring(1); if (decimalValue) { if (decimalValue <= groupIndex) {
capturedGroups[decimalValue] = -1;
} else { // Replace with an unambiguous escape sequence so that // an octal escape sequence does not turn into a backreference // to a capturing group from an earlier regex.
parts[i] = encodeEscape(decimalValue);
}
}
}
}
// Renumber groups and reduce capturing groups to non-capturing groups // where possible. for (var i = 1; i < capturedGroups.length; ++i) { if (-1 === capturedGroups[i]) {
capturedGroups[i] = ++capturedGroupIndex;
}
} for (var i = 0, groupIndex = 0; i < n; ++i) { var p = parts[i]; if (p === '(') {
++groupIndex; if (!capturedGroups[groupIndex]) {
parts[i] = '(?:';
}
} elseif ('\\' === p.charAt(0)) { var decimalValue = +p.substring(1); if (decimalValue && decimalValue <= groupIndex) {
parts[i] = '\\' + capturedGroups[decimalValue];
}
}
}
// Remove any prefix anchors so that the output will match anywhere. // ^^ really does mean an anchored match though. for (var i = 0; i < n; ++i) { if ('^' === parts[i] && '^' !== parts[i + 1]) { parts[i] = ''; }
}
// Expand letters to groups to handle mixing of case-sensitive and // case-insensitive patterns if necessary. if (regex.ignoreCase && needToFoldCase) { for (var i = 0; i < n; ++i) { var p = parts[i]; var ch0 = p.charAt(0); if (p.length >= 2 && ch0 === '[') {
parts[i] = caseFoldCharset(p);
} elseif (ch0 !== '\\') { // TODO: handle letters in numeric escapes.
parts[i] = p.replace(
/[a-zA-Z]/g, function (ch) { var cc = ch.charCodeAt(0); return'[' + String.fromCharCode(cc & ~32, cc | 32) + ']';
});
}
}
}
return parts.join('');
}
var rewritten = []; for (var i = 0, n = regexs.length; i < n; ++i) { var regex = regexs[i]; if (regex.global || regex.multiline) { thrownew Error('' + regex); }
rewritten.push( '(?:' + allowAnywhereFoldCaseAndRenumberGroups(regex) + ')');
}
/** * Split markup into a string of source code and an array mapping ranges in * that string to the text nodes in which they appear. * * <p> * The HTML DOM structure:</p> * <pre> * (Element "p" * (Element "b" * (Text "print ")) ; #1 * (Text "'Hello '") ; #2 * (Element "br") ; #3 * (Text " + 'World';")) ; #4 * </pre> * <p> * corresponds to the HTML * {@code <p><b>print </b>'Hello '<br> + 'World';</p>}.</p> * * <p> * It will produce the output:</p> * <pre> * { * sourceCode: "print 'Hello '\n + 'World';", * // 1 2 * // 012345678901234 5678901234567 * spans: [0, #1, 6, #2, 14, #3, 15, #4] * } * </pre> * <p> * where #1 is a reference to the {@code "print "} text node above, and so * on for the other text nodes. * </p> * * <p> * The {@code} spans array is an array of pairs. Even elements are the start * indices of substrings, and odd elements are the text nodes (or BR elements) * that contain the text for those substrings. * Substrings continue until the next index or the end of the source. * </p> * * @param {Node} node an HTML DOM subtree containing source-code. * @param {boolean} isPreformatted true if white-space in text nodes should * be considered significant. * @return {Object} source code and the text nodes in which they occur.
*/ function extractSourceSpans(node, isPreformatted) { var nocode = /(?:^|\s)nocode(?:\s|$)/;
var chunks = []; var length = 0; var spans = []; var k = 0;
function walk(node) { switch (node.nodeType) { case 1: // Element if (nocode.test(node.className)) { return; } for (var child = node.firstChild; child; child = child.nextSibling) {
walk(child);
} var nodeName = node.nodeName.toLowerCase(); if ('br' === nodeName || 'li' === nodeName) {
chunks[k] = '\n';
spans[k << 1] = length++;
spans[(k++ << 1) | 1] = node;
} break; case 3: case 4: // Text var text = node.nodeValue; if (text.length) { if (!isPreformatted) {
text = text.replace(/[ \t\r\n]+/g, ' ');
} else {
text = text.replace(/\r\n?/g, '\n'); // Normalize newlines.
text = text.replace(/^(\r?\n\s*)+/g, ''); // Remove leading newlines
text = text.replace(/^\s*/g, ''); // Remove leading spaces due to indented formatting
text = text.replace(/(\r?\n\s*)+$/g, ''); // Remove ending newlines
/** * Apply the given language handler to sourceCode and add the resulting * decorations to out. * @param {number} basePos the index of sourceCode within the chunk of source * whose decorations are already present on out.
*/ function appendDecorations(basePos, sourceCode, langHandler, out) { if (!sourceCode) { return; } var job = {
sourceCode: sourceCode,
basePos: basePos
};
langHandler(job);
out.push.apply(out, job.decorations);
}
var notWs = /\S/;
/** * Given an element, if it contains only one child element and any text nodes * it contains contain only space characters, return the sole child element. * Otherwise returns undefined. * <p> * This is meant to return the CODE element in {@code <pre><code ...>} when * there is a single child element that contains all the non-space textual * content, but not to return anything where there are multiple child elements * as in {@code <pre><code>...</code><code>...</code></pre>} or when there * is textual content.
*/ function childContentWrapper(element) { var wrapper = undefined; for (var c = element.firstChild; c; c = c.nextSibling) { var type = c.nodeType;
wrapper = (type === 1) // Element Node
? (wrapper ? element : c)
: (type === 3) // Text Node
? (notWs.test(c.nodeValue) ? element : wrapper)
: wrapper;
} return wrapper === element ? undefined : wrapper;
}
/** Given triples of [style, pattern, context] returns a lexing function, * The lexing function interprets the patterns to find token boundaries and * returns a decoration list of the form * [index_0, style_0, index_1, style_1, ..., index_n, style_n] * where index_n is an index into the sourceCode, and style_n is a style * constant like PR_PLAIN. index_n-1 <= index_n, and style_n-1 applies to * all characters in sourceCode[index_n-1:index_n]. * * The stylePatterns is a list whose elements have the form * [style : string, pattern : RegExp, DEPRECATED, shortcut : string]. * * Style is a style constant like PR_PLAIN, or can be a string of the * form 'lang-FOO', where FOO is a language extension describing the * language of the portion of the token in $1 after pattern executes. * E.g., if style is 'lang-lisp', and group 1 contains the text * '(hello (world))', then that portion of the token will be passed to the * registered lisp handler for formatting. * The text before and after group 1 will be restyled using this decorator * so decorators should take care that this doesn't result in infinite * recursion. For example, the HTML lexer rule for SCRIPT elements looks * something like ['lang-js', /<[s]cript>(.+?)<\/script>/]. This may match * '<script>foo()<\/script>', which would cause the current decorator to * be called with '<script>' which would not match the same rule since * group 1 must not be empty, so it would be instead styled as PR_TAG by * the generic tag rule. The handler registered for the 'js' extension would * then be called with 'foo()', and finally, the current decorator would * be called with '<\/script>' which would not match the original rule and * so the generic tag rule would identify it as a tag. * * Pattern must only match prefixes, and if it matches a prefix, then that * match is considered a token with the same style. * * Context is applied to the last non-whitespace, non-comment token * recognized. * * Shortcut is an optional string of characters, any of which, if the first * character, guarantee that this pattern and only this pattern matches. * * @param {Array} shortcutStylePatterns patterns that always start with * a known character. Must have a shortcut string. * @param {Array} fallthroughStylePatterns patterns that will be tried in * order if the shortcut ones fail. May have shortcuts. * * @return {function (Object)} a * function that takes source code and returns a list of decorations.
*/ function createSimpleLexer(shortcutStylePatterns, fallthroughStylePatterns) { var shortcuts = {}; var tokenizer;
(function () { var allPatterns = shortcutStylePatterns.concat(fallthroughStylePatterns); var allRegexs = []; var regexKeys = {}; for (var i = 0, n = allPatterns.length; i < n; ++i) { var patternParts = allPatterns[i]; var shortcutChars = patternParts[3]; if (shortcutChars) { for (var c = shortcutChars.length; --c >= 0;) {
shortcuts[shortcutChars.charAt(c)] = patternParts;
}
} var regex = patternParts[1]; var k = '' + regex; if (!regexKeys.hasOwnProperty(k)) {
allRegexs.push(regex);
regexKeys[k] = null;
}
}
allRegexs.push(/[\0-\uffff]/);
tokenizer = combinePrefixPatterns(allRegexs);
})();
var nPatterns = fallthroughStylePatterns.length;
/** * Lexes job.sourceCode and produces an output array job.decorations of * style classes preceded by the position at which they start in * job.sourceCode in order. * * @param {Object} job an object like <pre>{ * sourceCode: {string} sourceText plain text, * basePos: {int} position of job.sourceCode in the larger chunk of * sourceCode. * }</pre>
*/ var decorate = function (job) { var sourceCode = job.sourceCode, basePos = job.basePos; /** Even entries are positions in source in ascending order. Odd enties * are style markers (e.g., PR_COMMENT) that run from that position until * the end. * @type {Array.<number|string>}
*/ var decorations = [basePos, PR_PLAIN]; var pos = 0; // index into sourceCode var tokens = sourceCode.match(tokenizer) || []; var styleCache = {};
for (var ti = 0, nTokens = tokens.length; ti < nTokens; ++ti) { var token = tokens[ti]; var style = styleCache[token]; var match = void 0;
var isEmbedded; if (typeof style === 'string') {
isEmbedded = false;
} else { var patternParts = shortcuts[token.charAt(0)]; if (patternParts) {
match = token.match(patternParts[1]);
style = patternParts[0];
} else { for (var i = 0; i < nPatterns; ++i) {
patternParts = fallthroughStylePatterns[i];
match = token.match(patternParts[1]); if (match) {
style = patternParts[0]; break;
}
}
if (!match) { // make sure that we make progress
style = PR_PLAIN;
}
}
if (!isEmbedded) {
decorations.push(basePos + tokenStart, style);
} else { // Treat group 1 as an embedded block of source code. var embeddedSource = match[1]; var embeddedSourceStart = token.indexOf(embeddedSource); var embeddedSourceEnd = embeddedSourceStart + embeddedSource.length; if (match[2]) { // If embeddedSource can be blank, then it would match at the // beginning which would cause us to infinitely recurse on the // entire token, so we catch the right context in match[2].
embeddedSourceEnd = token.length - match[2].length;
embeddedSourceStart = embeddedSourceEnd - embeddedSource.length;
} var lang = style.substring(5); // Decorate the left of the embedded source
appendDecorations(
basePos + tokenStart,
token.substring(0, embeddedSourceStart),
decorate, decorations); // Decorate the embedded source
appendDecorations(
basePos + tokenStart + embeddedSourceStart,
embeddedSource,
langHandlerForExtension(lang, embeddedSource),
decorations); // Decorate the right of the embedded section
appendDecorations(
basePos + tokenStart + embeddedSourceEnd,
token.substring(embeddedSourceEnd),
decorate, decorations);
}
}
job.decorations = decorations;
}; return decorate;
}
/** returns a function that produces a list of decorations from source text. * * This code treats ", ', and ` as string delimiters, and \ as a string * escape. It does not recognize perl's qq() style strings. * It has no special handling for double delimiter escapes as in basic, or * the tripled delimiters used in python, but should work on those regardless * although in those cases a single string literal may be broken up into * multiple adjacent string literals. * * It recognizes C, C++, and shell style comments. * * @param {Object} options a set of optional parameters. * @return {function (Object)} a function that examines the source code * in the input job and builds the decoration list.
*/ function sourceDecorator(options) { var shortcutStylePatterns = [], fallthroughStylePatterns = []; if (options['tripleQuotedStrings']) { // '''multi-line-string''', 'single-line-string', and double-quoted
shortcutStylePatterns.push(
[PR_STRING, /^(?:\'\'\'(?:[^\'\\]|\\[\s\S]|\'{1,2}(?=[^\']))*(?:\'\'\'|$)|\"\"\"(?:[^\"\\]|\\[\s\S]|\"{1,2}(?=[^\"]))*(?:\"\"\"|$)|\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$))/, null, '\'"']);
} elseif (options['multiLineStrings']) { // 'multi-line-string', "multi-line-string"
shortcutStylePatterns.push(
[PR_STRING, /^(?:\'(?:[^\\\']|\\[\s\S])*(?:\'|$)|\"(?:[^\\\"]|\\[\s\S])*(?:\"|$)|\`(?:[^\\\`]|\\[\s\S])*(?:\`|$))/, null, '\'"`']);
} else { // 'single-line-string', "single-line-string"
shortcutStylePatterns.push(
[PR_STRING,
/^(?:\'(?:[^\\\'\r\n]|\\.)*(?:\'|$)|\"(?:[^\\\"\r\n]|\\.)*(?:\"|$))/, null, '"\'']);
} if (options['verbatimStrings']) { // verbatim-string-literal production from the C# grammar. See issue 93.
fallthroughStylePatterns.push(
[PR_STRING, /^@\"(?:[^\"]|\"\")*(?:\"|$)/, null]);
} var hc = options['hashComments']; if (hc) { if (options['cStyleComments']) { if (hc > 1) { // multiline hash comments
shortcutStylePatterns.push(
[PR_COMMENT, /^#(?:##(?:[^#]|#(?!##))*(?:###|$)|.*)/, null, '#']);
} else { // Stop C preprocessor declarations at an unclosed open comment
shortcutStylePatterns.push(
[PR_COMMENT, /^#(?:(?:define|elif|else|endif|error|ifdef|include|ifndef|line|pragma|undef|warning)\b|[^\r\n]*)/, null, '#']);
} // #include <stdio.h>
fallthroughStylePatterns.push(
[PR_STRING,
/^<(?:(?:(?:\.\.\/)*|\/?)(?:[\w-]+(?:\/[\w-]+)+)?[\w-]+\.h(?:h|pp|\+\+)?|[a-z]\w*)>/, null]);
} else {
shortcutStylePatterns.push([PR_COMMENT, /^#[^\r\n]*/, null, '#']);
}
} if (options['cStyleComments']) {
fallthroughStylePatterns.push([PR_COMMENT, /^\/\/[^\r\n]*/, null]);
fallthroughStylePatterns.push(
[PR_COMMENT, /^\/\*[\s\S]*?(?:\*\/|$)/, null]);
} if (options['regexLiterals']) { /** * @const
*/ var REGEX_LITERAL = ( // A regular expression literal starts with a slash that is // not followed by * or / so that it is not confused with // comments. '/(?=[^/*])' // and then contains any number of raw characters,
+ '(?:[^/\\x5B\\x5C]' // escape sequences (\x5C),
+ '|\\x5C[\\s\\S]' // or non-nesting character sets (\x5B\x5D);
+ '|\\x5B(?:[^\\x5C\\x5D]|\\x5C[\\s\\S])*(?:\\x5D|$))+' // finally closed by a /.
+ '/');
fallthroughStylePatterns.push(
['lang-regex', new RegExp('^' + REGEXP_PRECEDER_PATTERN + '(' + REGEX_LITERAL + ')')
]);
}
var types = options['types']; if (types) {
fallthroughStylePatterns.push([PR_TYPE, types]);
}
if (options['strings']) { var strings = ("" + options['strings']).replace(/^ | $/g, '').replace(/-/g, '\\-');
fallthroughStylePatterns.push(
[PR_STRING, new RegExp('(?:' + strings.replace(/[\s,]+/g, '|') + ')'),
, null]
);
}
var keywords = ("" + options['keywords']).replace(/^ | $/g, ''); if (keywords.length) {
fallthroughStylePatterns.push(
[PR_KEYWORD, new RegExp('^(?:' + keywords.replace(/[\s,]+/g, '|') + ')\\b'), null]);
}
/** * Given a DOM subtree, wraps it in a list, and puts each line into its own * list item. * * @param {Node} node modified in place. Its content is pulled into an * HTMLOListElement, and each line is moved into a separate list item. * This requires cloning elements, so the input might not have unique * IDs after numbering. * @param {boolean} isPreformatted true iff white-space in text nodes should * be treated as significant.
*/ function numberLines(node, opt_startLineNum, isPreformatted) { var nocode = /(?:^|\s)nocode(?:\s|$)/; var lineBreak = /\r\n?|\n/;
var document = node.ownerDocument;
var li = document.createElement('li'); while (node.firstChild) {
li.appendChild(node.firstChild);
} // An array of lines. We split below, so this is initialized to one // un-split line. var listItems = [li];
function walk(node) { switch (node.nodeType) { case 1: // Element if (nocode.test(node.className)) { break; } if ('br' === node.nodeName) {
breakAfter(node); // Discard the <BR> since it is now flush against a </LI>. if (node.parentNode) {
node.parentNode.removeChild(node);
}
} else { for (var child = node.firstChild; child; child = child.nextSibling) {
walk(child);
}
} break; case 3: case 4: // Text if (isPreformatted) { var text = node.nodeValue; var match = text.match(lineBreak); if (match) { var firstLine = text.substring(0, match.index);
node.nodeValue = firstLine; var tail = text.substring(match.index + match[0].length); if (tail) { var parent = node.parentNode;
parent.insertBefore(
document.createTextNode(tail), node.nextSibling);
}
breakAfter(node); if (!firstLine) { // Don't leave blank text nodes in the DOM.
node.parentNode.removeChild(node);
}
}
} break;
}
}
// Split a line after the given node. function breakAfter(lineEndNode) { // If there's nothing to the right, then we can skip ending the line // here, and move root-wards since splitting just before an end-tag // would require us to create a bunch of empty copies. while (!lineEndNode.nextSibling) {
lineEndNode = lineEndNode.parentNode; if (!lineEndNode) { return; }
}
function breakLeftOf(limit, copy) { // Clone shallowly if this node needs to be on both sides of the break. var rightSide = copy ? limit.cloneNode(false) : limit; var parent = limit.parentNode; if (parent) { // We clone the parent chain. // This helps us resurrect important styling elements that cross lines. // E.g. in <i>Foo<br>Bar</i> // should be rewritten to <li><i>Foo</i></li><li><i>Bar</i></li>. var parentClone = breakLeftOf(parent, 1); // Move the clone and everything to the right of the original // onto the cloned parent. var next = limit.nextSibling;
parentClone.appendChild(rightSide); for (var sibling = next; sibling; sibling = next) {
next = sibling.nextSibling;
parentClone.appendChild(sibling);
}
} return rightSide;
}
var copiedListItem = breakLeftOf(lineEndNode.nextSibling, 0);
// Walk the parent chain until we reach an unattached LI. for (var parent; // Check nodeType since IE invents document fragments.
(parent = copiedListItem.parentNode) && parent.nodeType === 1;) {
copiedListItem = parent;
} // Put it on the list of lines for later processing.
listItems.push(copiedListItem);
}
// Split lines while there are lines left to split. for (var i = 0; // Number of lines that have been split so far.
i < listItems.length; // length updated by breakAfter calls.
++i) {
walk(listItems[i]);
}
// Make sure numeric indices show correctly. if (opt_startLineNum === (opt_startLineNum|0)) {
listItems[0].setAttribute('value', opt_startLineNum);
}
var ol = document.createElement('ol');
ol.className = 'linenums'; var offset = Math.max(0, ((opt_startLineNum - 1 /* zero index */)) | 0) || 0; for (var i = 0, n = listItems.length; i < n; ++i) {
li = listItems[i]; // Stick a class on the LIs so that stylesheets can // color odd/even rows, or any other row pattern that // is co-prime with 10.
li.className = 'L' + ((i + offset) % 1); if (!li.firstChild) {
li.appendChild(document.createTextNode('\xA0'));
}
ol.appendChild(li);
}
node.appendChild(ol);
}
/** * Breaks {@code job.sourceCode} around style boundaries in * {@code job.decorations} and modifies {@code job.sourceNode} in place. * @param {Object} job like <pre>{ * sourceCode: {string} source as plain text, * spans: {Array.<number|Node>} alternating span start indices into source * and the text node or element (e.g. {@code <BR>}) corresponding to that * span. * decorations: {Array.<number|string} an array of style classes preceded * by the position at which they start in job.sourceCode in order * }</pre> * @private
*/ function recombineTagsAndDecorations(job) { var isIE8OrEarlier = /\bMSIE\s(\d+)/.exec(navigator.userAgent);
isIE8OrEarlier = isIE8OrEarlier && +isIE8OrEarlier[1] <= 8; var newlineRe = /\n/g;
var source = job.sourceCode; var sourceLength = source.length; // Index into source after the last code-unit recombined. var sourceIndex = 0;
var spans = job.spans; var nSpans = spans.length; // Index into spans after the last span which ends at or before sourceIndex. var spanIndex = 0;
var decorations = job.decorations; var nDecorations = decorations.length; // Index into decorations after the last decoration which ends at or before // sourceIndex. var decorationIndex = 0;
// Remove all zero-length decorations.
decorations[nDecorations] = sourceLength; var decPos, i; for (i = decPos = 0; i < nDecorations;) { if (decorations[i] !== decorations[i + 2]) {
decorations[decPos++] = decorations[i++];
decorations[decPos++] = decorations[i++];
} else {
i += 2;
}
}
nDecorations = decPos;
// Simplify decorations. for (i = decPos = 0; i < nDecorations;) { var startPos = decorations[i]; // Conflate all adjacent decorations that use the same style. var startDec = decorations[i + 1]; var end = i + 2; while (end + 2 <= nDecorations && decorations[end + 1] === startDec) {
end += 2;
}
decorations[decPos++] = startPos;
decorations[decPos++] = startDec;
i = end;
}
nDecorations = decorations.length = decPos;
var sourceNode = job.sourceNode; var oldDisplay; if (sourceNode) {
oldDisplay = sourceNode.style.display;
sourceNode.style.display = 'none';
} try { var decoration = null; var X = 0; while (spanIndex < nSpans) {
X = X + 1; if (X > 5000) { break; } var spanStart = spans[spanIndex]; var spanEnd = spans[spanIndex + 2] || sourceLength;
var decEnd = decorations[decorationIndex + 2] || sourceLength;
var end = Math.min(spanEnd, decEnd);
var textNode = spans[spanIndex + 1]; var styledText; if (textNode.nodeType !== 1 // Don't muck with <BR>s or <LI>s // Don't introduce spans around empty text nodes.
&& (styledText = source.substring(sourceIndex, end))) { // This may seem bizarre, and it is. Emitting LF on IE causes the // code to display with spaces instead of line breaks. // Emitting Windows standard issue linebreaks (CRLF) causes a blank // space to appear at the beginning of every line but the first. // Emitting an old Mac OS 9 line separator makes everything spiffy. if (isIE8OrEarlier) {
styledText = styledText.replace(newlineRe, '\r');
}
textNode.nodeValue = styledText; var document = textNode.ownerDocument; var span = document.createElement('span');
span.className = decorations[decorationIndex + 1]; var parentNode = textNode.parentNode;
parentNode.replaceChild(span, textNode);
span.appendChild(textNode); if (sourceIndex < spanEnd) { // Split off a text node.
spans[spanIndex + 1] = textNode // TODO: Possibly optimize by using '' if there's no flicker.
= document.createTextNode(source.substring(end, spanEnd));
parentNode.insertBefore(textNode, span.nextSibling);
}
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.