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0001 % testing for the erlang syntax highlighter 0002 % NOTE alerts work in comments to TODO ! 0003 0004 % pragmas (show as keywords) 0005 -module 0006 -export 0007 -define 0008 -undef 0009 -ifdef 0010 -ifndef 0011 -else 0012 -endif 0013 -include 0014 -include_lib 0015 0016 % key words 0017 after begin case catch cond end fun if let of query receive all_true some_true 0018 0019 % operators 0020 div rem or xor bor bxor bsl bsr and band not bnot 0021 + - * / == /= =:= =/= < =< > >= ++ -- = ! <- 0022 0023 % separators (show as functions) 0024 ( ) { } [ ] . : | || ; , ? -> # 0025 0026 % functions - predefined (part of erlang module) - show as functions 0027 abs accept alarm apply atom_to_list binary_to_list binary_to_term check_process_code 0028 concat_binary date delete_module disconnect_node element erase exit float float_to_list 0029 garbage_collect get get_keys group_leader halt hd integer_to_list is_alive is_atom is_binary 0030 is_boolean is_float is_function is_integer is_list is_number is_pid is_port is_process_alive 0031 is_record is_reference is_tuple length link list_to_atom list_to_binary list_to_float list_to_integer 0032 list_to_pid list_to_tuple load_module loaded localtime make_ref module_loaded node nodes now 0033 open_port pid_to_list port_close port_command port_connect port_control ports pre_loaded process_flag 0034 process_info processes purge_module put register registered round self setelement size 0035 spawn spawn_link spawn_opt split_binary statistics term_to_binary throw time tl trunc tuple_to_list 0036 unlink unregister whereis 0037 0038 % functions - inferred 0039 module:function 0040 function() 0041 0042 % atoms (show as "char") 0043 % begin with underscore, lowercase, contain numbers letters and @ - or anything between '' 0044 middle_underscore 0045 abc ab4d a@cd8 a@ 0046 'And this is (\012) an atom \' Atoo' Variable 'atom again' 0047 0048 % variables (begin with capital letter or underscore, contain numbers, letters and @) 0049 _leadingUnderscore AbdD@ B45@c 0050 0051 % this is a string 0052 "a string sits between \" double quotes" atom "more string" 0053 0054 % integers (decimal) 0055 1. 234 $A 0056 0057 % integers (specified base) 0058 2#10101 34#567 0059 0060 % float 0061 12.23 12.9e-67 12.8E+89 33.34e89 0062 0063 % and finally some real code, so we can see what it looks like... 0064 -module(codetest). % everything is in a module 0065 -export([fac/1]). % name and number of arguments - need this to be called outside of the module 0066 0067 fac(N) when N > 0 -> N * fac(N-1); 0068 fac(N) when N == 0 -> 1.