* etags.c [ETAGS_REGEXP]: All the new code that deals with regexps
is compiled if this is defined. The new functions and variables added #ifdef ETAGS_REGEXP are not listed in this ChangeLog. [VMS]: All VMS specific code previously contained in etags-vmslib.c is now included here, modified for dealing with language and regex options intermixed with filenames. (header_file): Global variable deleted. (Lang_Function): New typedef. All language parser functions changed to this new type. (string_numeric_p, substr, prestr): Functions deleted. (readline_internal): Does the job that readline did previously. (longopts): --language and --regex options added. (lang_names, lang_extensions, lang_func, print_language_names): New structures, variables and functions for choosing languages. (print_help): Help strings updated. Calls print_language_names. (argument_type, ARGUMENT): Typedefs for dealing with language and regex options intermixed with filenames. (main): Changed the way of dealing with arguments on the command line to deal with language and regex options intermixed with filenames. (get_language, default_C_entries, Cplusplus_entries, Cstar_entries, Yacc_entries, just_read_file): New functions. (find_entries): Use the new method for choosing the language. (Pascal_functions): Allow intermixing of comment styles. (prolog_getit, skip_comment): Rewritten for speed. (readline): Rewritten to deal with regexps.
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