abstract syntax tree - How to check if given line of code is written in java? -
what right way check if given line java code?
input: logsupport.java:44 com/sun/activation/registries/logsupport log (ljava/lang/string;)v
expected output: false.
input: scanner in = new scanner(system.in);
expected output: true.
i tried eclipse jdt astparser check if can create ast. here's code:
public static boolean isjava(string line) { boolean isjava = false; astparser parser = astparser.newparser(ast.jls3); parser.setsource(line.tochararray()); parser.setresolvebindings(false); astnode node = null; parser.setkind(astparser.k_statements); try { node = parser.createast(null); if (node == null) return false; isjava = true; } catch (exception e) { return false; } return isjava; } but not work. ideas? thanks!
try beanshell
http://www.beanshell.org/intro.html
java evaluation features:
evaluate full java source classes dynamically isolated java methods, statements, , expressions.
summary of features
dynamic execution of full java syntax, java code fragments, loosely typed java , additional scripting conveniences.
transparent access java objects , apis.
runs in 4 modes: command line, console, applet, remote session server. can work in security constrained environments without classloader or bytecode generation features.
the interpreter small ~150k jar file.
pure java.
it's free!!
the link below has other option try