85 lines
1.8 KiB
C++
85 lines
1.8 KiB
C++
#include <ctype.h>
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#include <ostd/platform.hh>
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#include <ostd/io.hh>
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#include <ostd/string.hh>
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#include <ostd/maybe.hh>
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#include <cubescript.hh>
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using namespace cscript;
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ostd::ConstCharRange version = "CubeScript 0.0.1 (REPL mode)";
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/* util */
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#ifdef OSTD_PLATFORM_WIN32
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#include <io.h>
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static bool stdin_is_tty() {
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return _isatty(_fileno(stdin));
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}
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#else
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#include <unistd.h>
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static bool stdin_is_tty() {
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return isatty(0);
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}
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#endif
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/* line editing support */
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#include "tools/edit_linenoise.hh"
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#include "tools/edit_libedit.hh"
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#include "tools/edit_readline.hh"
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#include "tools/edit_fallback.hh"
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static void do_tty(CsState &cs) {
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auto prompt = cs.add_ident<CsSvar>("PROMPT", "> ");
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auto prompt2 = cs.add_ident<CsSvar>("PROMPT2", ">> ");
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bool do_exit = false;
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cs.add_command("quit", "", [&do_exit](auto, auto &) {
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do_exit = true;
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});
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ostd::writeln(version);
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for (;;) {
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auto line = read_line(prompt);
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if (!line) {
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return;
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}
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auto lv = ostd::move(line.value());
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if (lv.empty()) {
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continue;
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}
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while (lv.back() == '\\') {
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lv.resize(lv.size() - 1);
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auto line2 = read_line(prompt2);
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if (!line2) {
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return;
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}
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lv += line2.value();
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}
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add_history(lv);
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CsValue ret;
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ret.set_null();
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cs.run_ret(lv, ret);
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if (ret.get_type() != CsValueType::null) {
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ostd::writeln(ret.get_str());
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}
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if (do_exit) {
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return;
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}
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}
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}
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int main(int, char **argv) {
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CsState cs;
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cs.init_libs();
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if (stdin_is_tty()) {
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init_lineedit(argv[0]);
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do_tty(cs);
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} else {
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ostd::err.writeln("Only interactive mode is supported for now.");
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}
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}
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