Tcl_CreateFileHandler (man3)
Tcl_CreateFileHandler, Tcl_DeleteFileHandler − associate procedure callbacks with files or devices (Unix only)
Tcl_CreateFileHandler, Tcl_DeleteFileHandler − associate procedure callbacks with files or devices (Unix only)
MooseX::Getopt − A Moose role for processing command line options
error, error_at_line, error_message_count, error_one_per_line, error_print_progname − glibc error reporting functions
atexit − register a function to be called at normal process termination
Tcl_UniChar, Tcl_UniCharToUtf, Tcl_UtfToUniChar, Tcl_UniCharToUtfDString, Tcl_UtfToUniCharDString, Tcl_UniCharLen, Tcl_UniCharNcmp, Tcl_UniCharNcasecmp, Tcl_UniCharCaseMatch, Tcl_UtfNcmp, Tcl_UtfNcasecmp, Tcl_UtfCharComplete, Tcl_NumUtfChars, Tcl_UtfFindFirst, Tcl_UtfFindLast, Tcl_UtfNext, Tcl_UtfPrev, Tcl_UniCharAtIndex, Tcl_UtfAtIndex, Tcl_UtfBackslash − routines for manipulating UTF-8 strings
XML::SAX::Intro − An Introduction to SAX Parsing with Perl
Tcl_NewStringObj, Tcl_NewUnicodeObj, Tcl_SetStringObj, Tcl_SetUnicodeObj, Tcl_GetStringFromObj, Tcl_GetString, Tcl_GetUnicodeFromObj, Tcl_GetUnicode, Tcl_GetUniChar, Tcl_GetCharLength, Tcl_GetRange, Tcl_AppendToObj, Tcl_AppendUnicodeToObj, Tcl_AppendObjToObj, Tcl_AppendStringsToObj, Tcl_AppendStringsToObjVA, Tcl_AppendLimitedToObj, Tcl_Format, Tcl_AppendFormatToObj, Tcl_ObjPrintf, Tcl_AppendPrintfToObj, Tcl_SetObjLength, Tcl_AttemptSetObjLength, Tcl_ConcatObj − manipulate Tcl values as strings
fdim, fdimf, fdiml − positive difference
Tcl_Backslash − parse a backslash sequence
Data::Dump::Trace − Helpers to trace function and method calls