725 lines
22 KiB
Text
725 lines
22 KiB
Text
var _REPL_dbg_level = "debug";
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#var _REPL_dbg_level = "alert";
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var REPL = {
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df_status: 0,
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whitespace: [" ", "\t", "\n", "\r"],
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end_statement: [";", ","],
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statement_types: [
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"for", "foreach", "forindex",
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"while", "else", "func", "if", "elsif"
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],
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operators_binary_unary: [
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"~", "+", "-", "*", "/",
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"!", "?", ":", ".", ",",
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"<", ">", "=", "|", "&", "^"
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],
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brackets: {
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"(":")",
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"[":"]",
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"{":"}",
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},
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str_chars: ["'", '"', "`"],
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brackets_rev: {},
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brackets_start: [], brackets_end: [],
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new: func(placement, name="<repl>", keep_history=1, namespace=nil) {
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if (namespace == nil) namespace = {};
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elsif (typeof(namespace) == 'scalar') namespace = globals[namespace];
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if (typeof(namespace) != 'hash') die("bad namespace!");
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var m = {
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parents: [REPL],
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placement: placement,
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name: name,
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keep_history: keep_history,
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namespace: namespace,
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history: [],
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current: nil,
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};
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return m;
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},
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execute: func() {
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var code = string.join("\n", me.current.line);
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me.current = nil;
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printlog(_REPL_dbg_level, "compiling code..."~debug.string(code));
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var fn = call(func compile(code, me.name), nil, var err=[]);
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if (size(err)) {
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var msg = err[0];
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var prefix = "Parse error: ";
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if (substr(msg, 0, size(prefix)) == prefix)
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msg = substr(msg, size(prefix));
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var (msg, line) = split(" at line ", msg);
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#debug.dump(err);
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me.placement.handle_parse_error(msg, me.name, line); # message, (file)name, line number
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return 0;
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}
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var res = call(bind(fn, globals), nil, nil, me.namespace, err);
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if (size(err)) {
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me.placement.handle_runtime_error(err); # err vec
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return 0;
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}
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me.placement.display_result(res);
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return 1;
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},
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_is_str_char: func(char) {
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foreach (var c; me.str_chars)
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if (c == char or c[0] == char) return 1;
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return 0;
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},
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_handle_level: func(level, str, line_number) {
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if (size(str) != 1)
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var str = substr(str, 0, 1);
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if (contains(me.brackets, str)) {
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append(level, str);
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printlog(_REPL_dbg_level, "> level add "~str);
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return 1;
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} elsif (contains(me.brackets_rev, str)) {
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var l = pop(level);
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if (l == nil) {
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me.placement.handle_parse_error("extra closing bracket "'"'~str~'"', me.name, line_number);
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return nil;
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} elsif (me.brackets[l] != str) {
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me.placement.handle_parse_error("bracket mismatch: "~me.brackets[l]~" vs "~str, me.name, line_number);
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return nil;
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} else {
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printlog(_REPL_dbg_level, "< level pop "~str);
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return 1;
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}
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}
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return 0;
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},
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get_input: func() {
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var lines = me.placement.get_line();
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if (lines == nil or string.trim(lines) == "") return me.df_status;
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var ls = split("\n", lines); var lines = [];
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foreach (var l; ls) lines ~= split("\r", l);
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foreach (var line; lines) {
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var len = size(line);
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if (me.current == nil)
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me.current = {
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line: [],
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brackets: [],
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level: [],
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statement: nil,
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statement_level: nil,
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last_operator: nil,
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};
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for (var i=0; i<len; i+=1) {
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if (string.isxspace(line[i])) continue;
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if (size(me.current.level) and me._is_str_char(me.current.level[-1])) {
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me.current.last_operator = nil;
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if (line[i] == `\\`) {
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i += 1; # skip the next character
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printlog(_REPL_dbg_level, " skip backslash");
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} elsif (line[i] == me.current.level[-1][0]) {
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printlog(_REPL_dbg_level, "< out of string with "~me.current.level[-1]);
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pop(me.current.level);
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}
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continue;
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}
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if (line[i] == `#`) {
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while(i<len and line[i] != `\n` and line[i] != `\r`) i+=1;
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continue;
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}
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if (me.current.statement != nil) {
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me.current.last_operator = nil;
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if (me.current.statement_level == size(me.current.level) and
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(line[i] == `;` or line[i] == `,`)) {
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printlog(_REPL_dbg_level, "statement ended by ;/,");
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me.current.statement = nil;
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me.current.statement_level = nil;
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} else {
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var ret = me._handle_level(me.current.level, chr(line[i]), size(me.current.line)+1);
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if (ret == nil) {# error
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me.current = nil;
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return 0;
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} elsif (me.current.statement_level > size(me.current.level)) {
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printlog(_REPL_dbg_level, "statement ended by level below");
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# cancel out of statement
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me.current.statement = nil;
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me.current.statement_level = nil;
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} elsif (line[i] == `{`) {
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# cancel out of looking for `;`, because we have a real block here
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printlog(_REPL_dbg_level, "statement ended by braces");
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me.current.statement = nil;
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me.current.statement_level = nil;
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}
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}
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continue;
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} elsif (string.isalpha(line[i])) {
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me.current.last_operator = nil;
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foreach (var stmt; me.statement_types) {
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if (substr(line, i, size(stmt)) == stmt and
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(i+size(stmt) >= len
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or !string.isalnum(line[i+size(stmt)])
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and line[i+size(stmt)] != `_`)) {
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printlog(_REPL_dbg_level, "found: "~stmt);
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me.current.statement = stmt;
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me.current.statement_level = size(me.current.level);
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i += size(stmt)-1;
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break;
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}
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}
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} elsif (me._is_str_char(line[i])) {
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me.current.last_operator = nil;
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append(me.current.level, chr(line[i]));
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printlog(_REPL_dbg_level, "> into string with "~me.current.level[-1]);
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} else {
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var ret = me._handle_level(me.current.level, chr(line[i]), size(me.current.line)+1);
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me.current.last_operator = nil;
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if (ret == nil) # error
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return 0;
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elsif (ret == 0) {
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foreach (var o; me.operators_binary_unary)
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if (line[i] == o[0])
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{ me.current.last_operator = o; printlog(_REPL_dbg_level, "found operator "~o); break }
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}
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}
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}
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append(me.current.line, line);
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if (me.keep_history)
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append(me.history, {
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type: "input",
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line: line,
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});
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}
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var execute = (me.current.statement == nil and me.current.last_operator == nil and !size(me.current.level));
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if (execute) {
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me.df_status = 0;
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return me.execute();
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} else
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return (me.df_status = -1);
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},
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};
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foreach (var b; keys(REPL.brackets)) {
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var v = REPL.brackets[b];
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append(REPL.brackets_start, b);
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append(REPL.brackets_end, v);
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REPL.brackets_rev[v] = b;
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}
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var CanvasPlacement = {
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instances: [],
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current_instance: nil,
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keys: [
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"ESC", "Exit/close this dialog",
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"Ctrl-d", "Same as ESC",
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"Ctrl-v", "Insert text (at the end of the current line)",
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"Ctrl-c", "Copy the current line of text",
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"Ctrl-x", "Copy and delete the current line of text",
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"Up", "Previous line in history",
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"Down", "Next line in history",
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"Left", nil,
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"Right", nil,
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"Shift+Left", nil,
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"Shift+Right", nil,
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],
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translations: {
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"bad-result": "[Error: cannot display output]",
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"key-not-mapped": "[Not Implemented]",
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"help": "Welcome to the Nasal REPL Interpreter. Press any key to "
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"exit this message, ESC to exit the dialog (at any time "
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"afterwards), and type away to test code :).\n\nNote: "
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"this dialog will capture nearly all key-presses, so don't "
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"try to fly with the keyboard while this is open!"
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"\n\nImportant keys:",
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},
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styles: {
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"default": {
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size: [600, 300],
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separate_lines: 1,
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window_style: "default",
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padding: 5,
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max_output_chars: 200,
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colors: {
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# TODO: integrate colors from debug.nas?
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text: [1,1,1],
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text_fill: nil,
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background: [0.1,0.06,0.4,0.3],
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error: [1,0.2,0.1],
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},
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font_size: 17,
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font_file: "LiberationFonts/LiberationMono-Bold.ttf",
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font_aspect_ratio: 1.5,
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font_max_width: nil,
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},
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"transparent-blue": {
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size: [600, 300],
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separate_lines: 1,
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window_style: nil,
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padding: 5,
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max_output_chars: 200,
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colors: {
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text: [1,1,1],
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text_fill: nil,
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background: [0.1,0.06,0.4,0.3],
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error: [1,0.2,0.1],
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},
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font_size: 17,
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font_file: "LiberationFonts/LiberationMono-Bold.ttf",
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font_aspect_ratio: 1.5,
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font_max_width: nil,
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},
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"transparent-red": {
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size: [600, 300],
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separate_lines: 1,
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window_style: nil,
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padding: 5,
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max_output_chars: 200,
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colors: {
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text: [1,1,1],
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text_fill: nil,
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background: [0.8,0.06,0.07,0.4],
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error: [1,0.2,0.1],
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},
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font_size: 17,
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font_file: "LiberationFonts/LiberationMono-Bold.ttf",
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font_aspect_ratio: 1.5,
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font_max_width: nil,
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},
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"canvas-default": {
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size: [600, 300],
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separate_lines: 1,
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window_style: "default",
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padding: 5,
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max_output_chars: 87,
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colors: {
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text: [0.8,0.86,0.8],
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text_fill: nil,
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background: [0.05,0.03,0.2],
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error: [1,0.2,0.1],
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},
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font_size: 17,
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font_file: "LiberationFonts/LiberationMono-Bold.ttf",
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font_aspect_ratio: 1.5,
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font_max_width: nil,
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#font_max_width: 588,
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},
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},
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new: func(name="<canvas-repl>", style="canvas-default") {
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if (typeof(style) == 'scalar') {
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style = CanvasPlacement.styles[style];
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}
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if (typeof(style) != 'hash') die("bad style");
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var m = {
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parents: [CanvasPlacement, style],
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state: "startup",
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listeners: [],
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window: canvas.Window.new(style.size, style.window_style, "REPL-interpreter-"~name),
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lines_of_text: [],
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history: [],
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curr: 0,
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completion_pos: 0,
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#tabs: [], # TODO: support multiple tabs
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};
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m.window.set("title", "Nasal REPL Interpreter");
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#debug.dump(m.window._node);
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m.window.del = func() {
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delete(me, "del");
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me.del(); # inherited canvas.Window.del();
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m.window = nil;
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m.del();
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};
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if (m.window_style != nil) m.window.setBool("resize", 1);
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m.canvas = m.window.createCanvas()
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.setColorBackground(m.colors.background);
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m.group = m.canvas.createGroup("content");
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m.vbox = canvas.VBoxLayout.new();
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m.window.setLayout(m.vbox);
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m.scroll = canvas.gui.widgets
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.ScrollArea.new(m.group, canvas.style, {});
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m.scroll.setColorBackground(m.colors.background);
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m.vbox.addItem(m.scroll);
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m.group = m.scroll.getContent();
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m.create_msg();
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m.text_group = m.group.createChild("group", "text-display");
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m.text = nil;
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m.cursor = m.group.createChild("path")
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.moveTo(0, -m.padding)
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.lineTo(0, -11-m.padding)
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.setStrokeLineWidth(2)
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.setColor(m.colors.text)
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.hide();
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m.repl = REPL.new(placement:m, name:name);
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# XXX: keyboard hack, needs proper GUI-integrated design
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append(m.listeners, setlistener("/devices/status/keyboard/event", func(event) {
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if (!event.getNode("pressed").getValue())
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return;
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var key = (var keyN = event.getNode("key", 1)).getValue();
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if (key == nil or key == -1) return;
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if (m.handle_key(key, event.getNode("modifier").getValues()))
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keyN.setValue(-1); # drop key event
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}));
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m.update();
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append(CanvasPlacement.instances, m);
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return m;
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},
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del: func() {
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if (me.window != nil)
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{ me.window.del(); me.window = nil }
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foreach (var l; me.listeners)
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removelistener(l);
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setsize(me.listeners, 0);
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forindex (var i; CanvasPlacement.instances)
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if (CanvasPlacement.instances[i] == me) {
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CanvasPlacement.instances[i] = CanvasPlacement.instances[-1];
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pop(CanvasPlacement.instances);
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break;
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}
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},
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add_char: func(char, reset_view=0) {
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me.reset_input_from_history();
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me.input ~= chr(char);
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me.text.appendText(chr(char));
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if (reset_view) me.reset_view();
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return nil;
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},
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add_text: func(text, reset_view=0) {
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me.reset_input_from_history();
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me.input ~= text;
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me.text.appendText(text);
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if (reset_view) me.reset_view();
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return nil;
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},
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remove_char: func(reset_view=0) {
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me.reset_input_from_history();
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me.input = substr(me.input, 0, size(me.input) - 1);
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var t = me.text.get("text");
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if (size(t) <= me.text.stop) return nil;
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me.text.setText(substr(t, 0, size(t)-1));
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if (reset_view) me.reset_view();
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return t[-1];
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},
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clear_input: func(reset_view=0) {
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me.reset_input_from_history();
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var ret = me.input;
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me.input = "";
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var t = me.text.get("text");
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me.text.setText(substr(t, 0, me.text.stop));
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if (reset_view) me.reset_view();
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return ret;
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},
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replace_line: func(replacement, replace_input=1, reset_view=0) {
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if (replace_input) me.input = replacement;
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var t = me.text.get("text");
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me.text.setText(substr(t, 0, me.text.stop)~replacement);
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if (reset_view) me.reset_view();
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return nil;
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},
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add_line: func(text, reset_text=1, reset_view=0) {
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me.create_line(reset_text);
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me.text.appendText(text);
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if (reset_view) me.reset_view();
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},
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new_prompt: func() {
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me.add_line(">>> ");
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me.text.stop = size(me.text.get("text"));
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},
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continue_line: func(reset_text=1) {
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me.add_line("... ", reset_text);
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me.text.stop = size(me.text.get("text"));
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},
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reset_input_from_history: func(reset_view=0) {
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if (me.curr < size(me.history)) {
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me.input = me.history[me.curr];
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me.curr = size(me.history);
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}
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if (reset_view) me.reset_view();
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},
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reset_view: func() {
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me.group.update();
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me.scroll.scrollToLeft().scrollToBottom();
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},
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set_line_color: func(color) {
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if (me.separate_lines)
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# Only change colors if this is its own line
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me.text.setColor(color);
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},
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set_line_font: func(font) {
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if (me.separate_lines)
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# Only change font if this is its own line
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me.text.setFont(font);
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},
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clear: func() {
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me.text.del();
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foreach (var t; me.lines_of_text)
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t.del();
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setsize(me.history, 0);
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me.curr = 0;
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me.input = "";
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me.text = nil;
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setsize(me.lines_of_text, 0);
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me.reset_view();
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},
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create_msg: func() {
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# Text drawing mode: text and maybe a bounding box
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var draw_mode = canvas.Text.TEXT + (me.colors.text_fill != nil ? canvas.Text.FILLEDBOUNDINGBOX : 0);
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me.msg = me.group.createChild("group", "startup-message");
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me.msg.text = me.msg.createChild("text", "help")
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.setTranslation(me.padding, me.padding+10)
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.setAlignment("left-baseline")
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.setFontSize(me.font_size, me.font_aspect_ratio)
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.setFont(me.font_file)
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.setColor(me.colors.text)
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.setDrawMode(draw_mode)
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.setMaxWidth(me.window.get("content-size[0]") - me.padding)
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.setText(me.gettranslation("help"));
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if (me.colors.text_fill != nil)
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me.msg.text.setColorFill(me.colors.text_fill);
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me.msg.text.update();
|
|
#debug.dump(me.msg.text.getTransformedBounds());
|
|
me.msg.left_col = me.msg.createChild("text", "keys")
|
|
.setTranslation(me.padding, me.msg.text.getTransformedBounds()[3] + 30)
|
|
.setAlignment("left-baseline")
|
|
.setFontSize(me.font_size, me.font_aspect_ratio)
|
|
.setFont(me.font_file)
|
|
.setColor(me.colors.text)
|
|
.setDrawMode(draw_mode);
|
|
if (me.colors.text_fill != nil)
|
|
me.msg.left_col.setColorFill(me.colors.text_fill);
|
|
me.msg.left_col.update();
|
|
for (var i=0; i<size(me.keys); i+=2) {
|
|
if (i) me.msg.left_col.appendText("\n");
|
|
me.msg.left_col.appendText("- "~me.keys[i]);
|
|
}
|
|
#debug.dump(me.msg.left_col.getTransformedBounds());
|
|
me.msg.right_col = me.msg.createChild("text", "keys")
|
|
.setTranslation(me.msg.left_col.getTransformedBounds()[2] + 20,
|
|
me.msg.text.getTransformedBounds()[3] + 30)
|
|
.setAlignment("left-baseline")
|
|
.setFontSize(me.font_size, me.font_aspect_ratio)
|
|
.setFont(me.font_file)
|
|
.setColor(me.colors.text)
|
|
.setDrawMode(draw_mode);
|
|
if (me.colors.text_fill != nil)
|
|
me.msg.right_col.setColorFill(me.colors.text_fill);
|
|
for (var i=0; i<size(me.keys); i+=2) {
|
|
if (i) me.msg.right_col.appendText("\n");
|
|
desc = me.keys[i+1];
|
|
if (desc == nil) desc = me.gettranslation("key-not-mapped");
|
|
elsif (desc[-1] != `.`) desc ~= ".";
|
|
me.msg.right_col.appendText(desc);
|
|
}
|
|
},
|
|
create_line: func(reset_text=1) {
|
|
# c.f. above, in me.create_msg()
|
|
var draw_mode = canvas.Text.TEXT + (me.colors.text_fill != nil ? canvas.Text.FILLEDBOUNDINGBOX : 0);
|
|
|
|
if (reset_text) me.input = "";
|
|
# If we only use one line, and one exists, things are simple:
|
|
if (!me.separate_lines and me.text != nil) {
|
|
me.text.appendText("\n");
|
|
return;
|
|
}
|
|
# Else, we have to create a new line
|
|
if (me.text != nil)
|
|
append(me.lines_of_text, me.text);
|
|
me.text = me.text_group
|
|
.createChild("text", "input"~size(me.lines_of_text))
|
|
.setAlignment("left-baseline")
|
|
.setFontSize(me.font_size, me.font_aspect_ratio)
|
|
.setFont(me.font_file)
|
|
.setColor(me.colors.text)
|
|
.setDrawMode(draw_mode)
|
|
.setText(size(me.lines_of_text) ? ">" : ""); # FIXME: hack, canvas::Text needs a printing character
|
|
# on the first line in order to recognize the newlines ?
|
|
if (me.colors.text_fill != nil)
|
|
me.text.setColorFill(me.colors.text_fill);
|
|
if (me.font_max_width != nil)
|
|
if (me.font_max_width < 0)
|
|
me.text.setMaxWidth(me.window.get("content-size[0]") - me.font_max_width);
|
|
else
|
|
me.text.setMaxWidth(me.font_max_width);
|
|
|
|
foreach (var t; me.lines_of_text)
|
|
me.text.appendText("\n");
|
|
},
|
|
update: func() {
|
|
#debug.dump(me.text.getTransformedBounds());
|
|
if (me.state != "startup")
|
|
me.cursor.setTranslation(
|
|
me.text.getTransformedBounds()[2] + 6,
|
|
me.text.getTransformedBounds()[3] + 5
|
|
).show();
|
|
me.scroll.update();
|
|
},
|
|
handle_key: func(key, modifiers) {
|
|
var modifier_str = "";
|
|
foreach (var m; keys(modifiers)) {
|
|
if (modifiers[m])
|
|
modifier_str ~= substr(m,0,1);
|
|
}
|
|
if (me.state == "startup") {
|
|
me.msg.del(); me.msg = nil;
|
|
me.new_prompt(); # initialize a new line
|
|
me.text.stop = size(me.text.get("text"));
|
|
me.state = "accepting input";
|
|
|
|
} elsif (!contains({"s":,"c":,"":}, modifier_str)) {
|
|
return 0; # had extra modifiers, reject this event
|
|
|
|
} elsif (modifiers.ctrl) {
|
|
if (key == 13) { # ctrl+c
|
|
printlog(_REPL_dbg_level, "ctrl+c: "~debug.string(me.input));
|
|
me.reset_input_from_history();
|
|
if( size(me.input) and !clipboard.setText(me.input) )
|
|
print("Failed to write to clipboard");
|
|
} elsif (key == 24) { # ctrl+x
|
|
printlog(_REPL_dbg_level, "ctrl+x");
|
|
me.reset_input_from_history();
|
|
if( size(me.input) and !clipboard.setText(me.clear_input()) )
|
|
print("Failed to write to clipboard");
|
|
} elsif (key == 22) { # ctrl+v
|
|
var input = clipboard.getText();
|
|
printlog(_REPL_dbg_level, "ctrl+v: "~debug.string(input));
|
|
me.reset_input_from_history();
|
|
var abnormal = func string.iscntrl(input[j]) or (string.isxspace(input[j]) and input[j] != ` `) or !string.isascii(input[j]);
|
|
var i=0;
|
|
while (i<size(input)) {
|
|
for (var j=i; j<size(input); j+=1)
|
|
if (abnormal()) break;
|
|
if (j != i) me.add_text(substr(input, i, j-i));
|
|
while (j<size(input) and abnormal()) {
|
|
# replace tabs with spaces
|
|
if (input[j] == `\t`)
|
|
me.add_char(` `);
|
|
# handle newlines like they're shift+space, i.e. continue don't evaluate
|
|
elsif (input[j] == `\n` or input[j] == `\r`) {
|
|
if (j<size(input)-1 and input[j+1] == `\n`)
|
|
j+=1;
|
|
me.input ~= "\n"; me.continue_line(reset_text:0);
|
|
}
|
|
# skip other non-ascii characters
|
|
j += 1;
|
|
}
|
|
i=j;
|
|
}
|
|
} elsif (key == 4) { # ctrl-D/EOF
|
|
printlog(_REPL_dbg_level, "EOF");
|
|
me.del();
|
|
return 1;
|
|
} else return 0;
|
|
|
|
} elsif (key == `\n` or key == `\r`) {
|
|
printlog(_REPL_dbg_level, "return (key: "~key~", shift: "~modifiers.shift~")");
|
|
me.reset_input_from_history();
|
|
var reset_text = 1;
|
|
if (modifiers.shift) {
|
|
var res = -1;
|
|
me.input ~= "\n";
|
|
reset_text = 0;
|
|
} else {
|
|
if (size(string.trim(me.input))) {
|
|
append(me.history, me.input);
|
|
me.curr += 1; # simplified version of: me.curr = size(me.history);
|
|
if (me.curr != size(me.history)) die(me.curr~" vs "~size(me.history));
|
|
}
|
|
CanvasPlacement.current_instance = me;
|
|
var res = me.repl.get_input();
|
|
CanvasPlacement.current_instance = nil;
|
|
printlog(_REPL_dbg_level, "return code: "~debug.string(res));
|
|
}
|
|
if (res == -1)
|
|
me.continue_line(reset_text:reset_text);
|
|
else me.new_prompt();
|
|
|
|
} elsif (key == 8) { # backspace
|
|
printlog(_REPL_dbg_level, "back");
|
|
me.reset_input_from_history();
|
|
if (me.remove_char() == nil) return 1; # nothing happened, since the input
|
|
# field was blank, but capture the event
|
|
me.completion_pos = -1;
|
|
|
|
} elsif (key == 357) { # up
|
|
printlog(_REPL_dbg_level, "up");
|
|
if (me.curr == 0) return 1;
|
|
me.curr -= 1;
|
|
if (me.curr == size(me.history))
|
|
me.replace_line(me.input, 0);
|
|
else
|
|
me.replace_line(me.history[me.curr], 0);
|
|
me.completion_pos = -1;
|
|
|
|
} elsif (key == 359) { # down
|
|
printlog(_REPL_dbg_level, "down");
|
|
if (me.curr == size(me.history)) return 1;
|
|
me.curr += 1;
|
|
if (me.curr == size(me.history))
|
|
me.replace_line(me.input, 0);
|
|
else
|
|
me.replace_line(me.history[me.curr], 0);
|
|
me.completion_pos = -1;
|
|
|
|
} elsif (key == 27) { # escape -> cancel
|
|
printlog(_REPL_dbg_level, "esc");
|
|
me.del();
|
|
return 1;
|
|
|
|
} elsif (key == `\t`) { # tab
|
|
printlog(_REPL_dbg_level, "tab");
|
|
return 0;
|
|
me.reset_input_from_history();
|
|
if (size(text) and text[0] == `/`) {
|
|
me.input = me.complete(me.input, modifiers.shift ? -1 : 1);
|
|
}
|
|
|
|
} elsif (!string.isprint(key)) {
|
|
printlog(_REPL_dbg_level, "other key: "~key);
|
|
return 0; # pass other funny events
|
|
|
|
} else {
|
|
printlog(_REPL_dbg_level, "key: "~key~" (`"~chr(key)~"`)");
|
|
me.add_char(key);
|
|
me.completion_pos = -1;
|
|
}
|
|
|
|
#printlog(_REPL_dbg_level, " -> "~me.input);
|
|
|
|
me.update();
|
|
me.reset_view();
|
|
|
|
return 1; # discard key event
|
|
},
|
|
get_line: func() {
|
|
return me.input;
|
|
},
|
|
display_result: func(res=nil) {
|
|
if (res == nil) return 1; # don't display NULL results
|
|
var res = call(debug.string, [res, 0], var err=[]);
|
|
if (size(err)) {
|
|
me.add_line(me.gettranslation("bad-result"));
|
|
me.set_line_color(me.colors.error);
|
|
if (me.font_file == "LiberationFonts/LiberationMono-Bold.ttf")
|
|
me.set_line_font("LiberationFonts/LiberationMono-BoldItalic.ttf");
|
|
return 1;
|
|
}
|
|
if (size(res) > me.max_output_chars)
|
|
res = substr(res, 0, me.max_output_chars-5)~". . .";
|
|
me.add_line(res);
|
|
return 1;
|
|
},
|
|
handle_runtime_error: func(err) {
|
|
debug.printerror(err);
|
|
me.add_line("Runtime error: "~err[0]);
|
|
me.set_line_color(me.colors.error);
|
|
for (var i=1; i<size(err); i+=2) {
|
|
me.add_line(" at "~err[i]~", line "~err[i+1]);
|
|
}
|
|
},
|
|
handle_parse_error: func(msg, file, line) {
|
|
print("Parse error: "~msg~" on line "~line~" in "~file);
|
|
me.add_line("Parse error: "~msg~" on line "~line~" in "~file);
|
|
me.set_line_color(me.colors.error);
|
|
},
|
|
gettranslation: func(k) me.translations[k] or "[Error: no translation for key "~k~"]",
|
|
};
|
|
|
|
var print2 = func(i) {
|
|
console.CanvasPlacement.current_instance.display_result(i);
|
|
return nil; # just to suppress output
|
|
}
|
|
#CanvasPlacement.new("<styled-canvas-repl>", "canvas-default");
|
|
|