erl_scan:string返回值的具体组成请看官方文档http://www.erlang.org/doc/man/erl_scan.html#type-token erl_scan:tokens的用法差不多,下面也给一个例子 erl_scan:tokens([],binary_to_list(Data),0,text). {done,{ok,[{'{',[{line,0},{text,"{"}]}, {atom,[{line,0},{text,"rssAPVg"}]...
Tokens是来自Erlang的令牌String。EndLocation是最后一个令牌之后的第一个位置。 {error, ErrorInfo, ErrorLocation} 发生了一个错误。ErrorLocation是错误令牌之后的第一个位置。 string(String)相当于string(String, 1),string(String, StartLocation)相当于string(String, StartLocation, [])。
功能column(),end_location(),line(),location(),和text()中erl_scan模块能够用于在令牌检查注释。 功能anno_from_term(),anno_to_term(),fold_anno(),map_anno(),mapfold_anno(),和new_anno(),在所述erl_parse模块可用于在抽象代码操纵注释。
<context:component-scan base-package="com.kuang.pojo"/> <context:annotation-config/> 1. 2. 包下的类增加注解@Component,属性注入 @Value(如果提供了set方法,在set方法上添加@value(“值”) @Component("user") // 相当于配置文件中 <bean id="user" class="当前注解的类"/> public class User { ...
erl_eval:exprs 1、 erl_scan:string(String) -> erl_parse:parse_exprs(Ts) -> erl_eval:exprs(Expr, []) 2、 io:parse_erl_exprs(Prompt, StartLine) -> erl_eval:exprs(Expr, [])
xscanimage(1) xscope(1) Xserver(1) xset(1) xsetroot(1) xslt-config(1) xsltproc(1) xstdcmap(1) xstr(1) xsubpp(1) xterm(1) xtotroff(1) Xvfb(1) xvidtune(1) xvinfo(1) Xvnc(1) xwd(1) xwininfo(1) xwud(1) xxd(1) xz(1) xzdec(1) xzdiff(1) xzgrep(1) xzless(1) xz...
Example: 23> io:scan_erl_exprs('enter>'). enter>abc(), "hey". {ok,[{atom,1,abc},{'(',1},{')',1},{',',1},{string,1,"hey"},{dot,1}],2} 24> io:scan_erl_exprs('enter>'). enter>1.0er. {error,{1,erl_scan,{illegal,float}},2}scan...
erl_scanThe Erlang Token Scanner erl_tarUnix tar utility for reading and writing tar arc error_logger_file_h error_logger_tty_h escript etsBuilt-In Term Storage eval_bits file_sorterFile Sorter filelibFile utilities, such as wildcard matching of filen filenameFilename Manipulation Functions gb...
compileErlang Compiler core_lib core_pp core_scan erl_bifs rec_envAbstract environments, supporting self-referential bindings and automatic new-key generation. sys_core_dsetel sys_core_fold sys_core_inline sys_expand_pmod sys_pre_attributes sys_pre_expand v3_codegen v3_core v3_kernel v3_kernel...
case erl_scan:string(Str) of {ok, Tokens, _} -> case erl_parse:parse_term(Tokens ++ [{dot, erl_anno:new(1)}]) of {ok, Term} -> Term; {error, {_,_,Reason}} -> io:format("~ts: ~ts~n", [Reason, Str]), throw(error) ...