X-Git-Url: https://git.saurik.com/cycript.git/blobdiff_plain/89d16b11d9ce1c739871f92c3170128e0befc96c..d82e4c2ae6a0f62a34aad66263c28f846c33953d:/Console.cpp

diff --git a/Console.cpp b/Console.cpp
index 8a525f6..e01dd07 100644
--- a/Console.cpp
+++ b/Console.cpp
@@ -1,21 +1,21 @@
 /* Cycript - Optimizing JavaScript Compiler/Runtime
- * Copyright (C) 2009-2013  Jay Freeman (saurik)
+ * Copyright (C) 2009-2015  Jay Freeman (saurik)
 */
 
-/* GNU General Public License, Version 3 {{{ */
+/* GNU Affero General Public License, Version 3 {{{ */
 /*
- * Cycript is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published
- * by the Free Software Foundation, either version 3 of the License,
- * or (at your option) any later version.
- *
- * Cycript is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Cycript.  If not, see <http://www.gnu.org/licenses/>.
+ * GNU Affero General Public License for more details.
+
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 **/
 /* }}} */
 
@@ -26,11 +26,10 @@
 #endif
 
 #include <cstdio>
+#include <complex>
 #include <fstream>
 #include <sstream>
 
-#include <setjmp.h>
-
 #ifdef HAVE_READLINE_H
 #include <readline.h>
 #else
@@ -44,6 +43,9 @@
 #endif
 
 #include <errno.h>
+#include <getopt.h>
+#include <setjmp.h>
+#include <signal.h>
 #include <unistd.h>
 
 #include <sys/socket.h>
@@ -52,23 +54,153 @@
 #include <fcntl.h>
 #include <netdb.h>
 
+#include <sys/ioctl.h>
 #include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <sys/un.h>
-#include <pwd.h>
-
-#include <apr_getopt.h>
-#include <apr_pools.h>
-#include <apr_strings.h>
 
 #include <dlfcn.h>
+#include <pwd.h>
+#include <term.h>
 
-#include "Display.hpp"
-#include "Replace.hpp"
+#ifdef __APPLE__
+#include <mach/mach_time.h>
+#endif
 
-#include "Cycript.tab.hh"
 #include "Driver.hpp"
+#include "Error.hpp"
+#include "Highlight.hpp"
+#include "Syntax.hpp"
+
+extern "C" int rl_display_fixed;
+extern "C" int _rl_vis_botlin;
+extern "C" int _rl_last_c_pos;
+extern "C" int _rl_last_v_pos;
+
+typedef std::complex<int> CYCursor;
+
+static CYCursor current_;
+static int width_;
+static size_t point_;
+
+unsigned CYDisplayWidth() {
+    struct winsize info;
+    if (ioctl(1, TIOCGWINSZ, &info) != -1)
+        return info.ws_col;
+    return tgetnum(const_cast<char *>("co"));
+}
+
+void CYDisplayOutput_(bool display, const char *&data) {
+    for (;; ++data) {
+        char next(*data);
+        if (next == '\0' || next == CYIgnoreEnd)
+            return;
+        if (display)
+            putchar(next);
+    }
+}
+
+CYCursor CYDisplayOutput(bool display, int width, const char *data, ssize_t offset = 0) {
+    CYCursor point(current_);
+
+    for (;;) {
+        if (offset-- == 0)
+            point = current_;
+        switch (char next = *data++) {
+            case '\0':
+                return point;
+            break;
+
+            case CYIgnoreStart:
+                CYDisplayOutput_(display, data);
+            case CYIgnoreEnd:
+                ++offset;
+            break;
+
+            default:
+                if (display)
+                    putchar(next);
+                current_ += CYCursor(0, 1);
+                if (current_.imag() != width)
+                    break;
+                current_ = CYCursor(current_.real() + 1, 0);
+                if (display)
+                    putp(clr_eos);
+            break;
+
+            case '\n':
+                current_ = CYCursor(current_.real() + 1, 4);
+                if (display) {
+                    putp(clr_eol);
+                    putchar('\n');
+                    putchar(' ');
+                    putchar(' ');
+                    putchar(' ');
+                    putchar(' ');
+                }
+            break;
+
+        }
+    }
+}
+
+void CYDisplayMove_(char *negative, char *positive, int offset) {
+    if (offset < 0)
+        putp(tparm(negative, -offset));
+    else if (offset > 0)
+        putp(tparm(positive, offset));
+}
+
+void CYDisplayMove(CYCursor target) {
+    CYCursor offset(target - current_);
+
+    CYDisplayMove_(parm_up_cursor, parm_down_cursor, offset.real());
+
+    if (char *parm = tparm(column_address, target.imag()))
+        putp(parm);
+    else
+        CYDisplayMove_(parm_left_cursor, parm_right_cursor, offset.imag());
+
+    current_ = target;
+}
+
+void CYDisplayUpdate() {
+    current_ = CYCursor(_rl_last_v_pos, _rl_last_c_pos);
+
+    const char *prompt(rl_display_prompt);
+
+    std::ostringstream stream;
+    CYLexerHighlight(rl_line_buffer, rl_end, stream, true);
+    std::string string(stream.str());
+    const char *buffer(string.c_str());
+
+    int width(CYDisplayWidth());
+    if (width_ != width) {
+        current_ = CYCursor();
+        CYDisplayOutput(false, width, prompt);
+        current_ = CYDisplayOutput(false, width, buffer, point_);
+    }
+
+    CYDisplayMove(CYCursor());
+    CYDisplayOutput(true, width, prompt);
+    CYCursor target(CYDisplayOutput(true, width, stream.str().c_str(), rl_point));
+
+    _rl_vis_botlin = current_.real();
+
+    if (current_.imag() == 0)
+        CYDisplayOutput(true, width, " ");
+    putp(clr_eos);
+
+    CYDisplayMove(target);
+    fflush(stdout);
+
+    _rl_last_v_pos = current_.real();
+    _rl_last_c_pos = current_.imag();
+
+    width_ = width;
+    point_ = rl_point;
+}
 
 static volatile enum {
     Working,
@@ -87,7 +219,8 @@ static void sigint(int) {
         case Parsing:
             longjmp(ctrlc_, 1);
         case Running:
-            throw "*** Ctrl-C";
+            CYCancel();
+            return;
         case Sending:
             return;
         case Waiting:
@@ -95,25 +228,22 @@ static void sigint(int) {
     }
 }
 
-#if YYDEBUG
 static bool bison_;
-#endif
+static bool timing_;
 static bool strict_;
 static bool pretty_;
 
-void Setup(CYDriver &driver, cy::parser &parser) {
-#if YYDEBUG
+void Setup(CYDriver &driver) {
     if (bison_)
-        parser.set_debug_level(1);
-#endif
+        driver.debug_ = 1;
     if (strict_)
         driver.strict_ = true;
 }
 
-void Setup(CYOutput &out, CYDriver &driver, CYOptions &options) {
+void Setup(CYOutput &out, CYDriver &driver, CYOptions &options, bool lower) {
     out.pretty_ = pretty_;
-    CYContext context(options);
-    driver.program_->Replace(context);
+    if (lower)
+        driver.Replace(options);
 }
 
 static CYUTF8String Run(CYPool &pool, int client, CYUTF8String code) {
@@ -159,14 +289,7 @@ static CYUTF8String Run(CYPool &pool, int client, const std::string &code) {
 
 static std::ostream *out_;
 
-static void Write(bool syntax, const char *data, size_t size, std::ostream &out) {
-    if (syntax)
-        CYLexerHighlight(data, size, out);
-    else
-        out.write(data, size);
-}
-
-static void Output(bool syntax, CYUTF8String json, std::ostream *out, bool expand = false) {
+static void Output(CYUTF8String json, std::ostream *out, bool expand = false) {
     const char *data(json.data);
     size_t size(json.size);
 
@@ -177,7 +300,7 @@ static void Output(bool syntax, CYUTF8String json, std::ostream *out, bool expan
         data[0] != '@' && data[0] != '"' && data[0] != '\'' ||
         data[0] == '@' && data[1] != '"' && data[1] != '\''
     )
-        Write(syntax, data, size, *out);
+        CYLexerHighlight(data, size, *out);
     else for (size_t i(0); i != size; ++i)
         if (data[i] != '\\')
             *out << data[i];
@@ -199,232 +322,276 @@ static void Output(bool syntax, CYUTF8String json, std::ostream *out, bool expan
     *out << std::endl;
 }
 
-static void Run(int client, bool syntax, const char *data, size_t size, std::ostream *out = NULL, bool expand = false) {
-    CYPool pool;
-    Output(syntax, Run(pool, client, CYUTF8String(data, size)), out, expand);
+int (*append_history$)(int, const char *);
+
+static std::string command_;
+
+static int client_;
+
+static CYUTF8String Run(CYPool &pool, const std::string &code) {
+    return Run(pool, client_, code);
 }
 
-static void Run(int client, bool syntax, std::string &code, std::ostream *out = NULL, bool expand = false) {
-    Run(client, syntax, code.c_str(), code.size(), out, expand);
+static char **Complete(const char *word, int start, int end) {
+    rl_attempted_completion_over = ~0;
+    std::string line(rl_line_buffer, start);
+    char **values(CYComplete(word, command_ + line, &Run));
+    mode_ = Parsing;
+    return values;
 }
 
-int (*append_history$)(int, const char *);
+// need char *, not const char *
+static char name_[] = "cycript";
+static char break_[] = " \t\n\"\\'`@><=;|&{(" ")}" ".:[]";
 
-static std::string command_;
+class History {
+  private:
+    std::string histfile_;
+    size_t histlines_;
 
-static CYExpression *ParseExpression(CYUTF8String code) {
-    std::stringstream stream;
-    stream << '(' << code << ')';
-    CYDriver driver(stream);
+  public:
+    History(std::string histfile) :
+        histfile_(histfile),
+        histlines_(0)
+    {
+        read_history(histfile_.c_str());
 
-    cy::parser parser(driver);
-    Setup(driver, parser);
+        for (HIST_ENTRY *history((history_set_pos(0), current_history())); history; history = next_history())
+            for (char *character(history->line); *character; ++character)
+                if (*character == '\x01') *character = '\n';
+    }
 
-    if (parser.parse() != 0 || !driver.errors_.empty())
-        return NULL;
+    ~History() {
+        for (HIST_ENTRY *history((history_set_pos(0), current_history())); history; history = next_history())
+            for (char *character(history->line); *character; ++character)
+                if (*character == '\n') *character = '\x01';
 
-    CYOptions options;
-    CYContext context(options);
+        if (append_history$ != NULL) {
+            int fd(_syscall(open(histfile_.c_str(), O_CREAT | O_WRONLY, 0600)));
+            _syscall(close(fd));
+            _assert((*append_history$)(histlines_, histfile_.c_str()) == 0);
+        } else {
+            _assert(write_history(histfile_.c_str()) == 0);
+        }
+    }
 
-    // XXX: this could be replaced with a CYStatement::Primitive()
-    if (CYExpress *express = dynamic_cast<CYExpress *>(driver.program_->statements_))
-        return express->expression_->Primitive(context);
+    void operator +=(std::string command) {
+        add_history(command.c_str());
+        ++histlines_;
+    }
+};
 
+template <typename Type_>
+static Type_ *CYmemrchr(Type_ *data, Type_ value, size_t size) {
+    while (size != 0)
+        if (data[--size] == value)
+            return data + size;
     return NULL;
 }
 
-static int client_;
+static int CYConsoleKeyReturn(int count, int key) {
+    if (rl_point != rl_end) {
+        if (memchr(rl_line_buffer, '\n', rl_end) == NULL)
+            return rl_newline(count, key);
 
-static char **Complete(const char *word, int start, int end) {
-    rl_attempted_completion_over = TRUE;
+      insert:
+        char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (before == NULL)
+            before = rl_line_buffer;
 
-    CYLocalPool pool;
+        int space(before + 1 - rl_line_buffer);
+        while (space != rl_point && rl_line_buffer[space] == ' ')
+            ++space;
 
-    std::string line(rl_line_buffer, start);
-    std::istringstream stream(command_ + line);
-    CYDriver driver(stream);
-
-    driver.auto_ = true;
+        int adjust(rl_line_buffer + space - 1 - before);
+        if (space == rl_point && adjust != 0)
+            rl_rubout(adjust, '\b');
 
-    cy::parser parser(driver);
-    Setup(driver, parser);
+        rl_insert(count, '\n');
+        if (adjust != 0)
+            rl_insert(adjust, ' ');
 
-    if (parser.parse() != 0 || !driver.errors_.empty())
-        return NULL;
-
-    if (driver.mode_ == CYDriver::AutoNone)
-        return NULL;
+        return 0;
+    }
 
-    CYExpression *expression;
+    bool done(false);
+    if (rl_line_buffer[0] == '?')
+        done = true;
+    else {
+        std::string command(rl_line_buffer, rl_end);
+        command += '\n';
+        std::stringbuf stream(command);
 
-    CYOptions options;
-    CYContext context(options);
+        size_t last(std::string::npos);
+        for (size_t i(0); i != std::string::npos; i = command.find('\n', i + 1))
+            ++last;
 
-    std::ostringstream prefix;
+        CYPool pool;
+        CYDriver driver(pool, stream);
+        if (driver.Parse() || !driver.errors_.empty())
+            for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) {
+                if (error->location_.begin.line != last + 1)
+                    done = true;
+                break;
+            }
+        else
+            done = true;
+    }
 
-    switch (driver.mode_) {
-        case CYDriver::AutoPrimary:
-            expression = $ CYThis();
-        break;
+    if (done)
+        return rl_newline(count, key);
 
-        case CYDriver::AutoDirect:
-            expression = driver.context_;
-        break;
+    // XXX: this was the most obvious fix, but is seriously dumb
+    goto insert;
+}
 
-        case CYDriver::AutoIndirect:
-            expression = $ CYIndirect(driver.context_);
-        break;
+static int CYConsoleKeyUp(int count, int key) {
+    while (count-- != 0) {
+        char *after(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (after == NULL) {
+            if (int value = rl_get_previous_history(1, key))
+                return value;
+            continue;
+        }
 
-        case CYDriver::AutoMessage: {
-            CYDriver::Context &thing(driver.contexts_.back());
-            expression = $M($C1($V("object_getClass"), thing.context_), $S("messages"));
-            for (CYDriver::Context::Words::const_iterator part(thing.words_.begin()); part != thing.words_.end(); ++part)
-                prefix << (*part)->word_ << ':';
-        } break;
+        char *before(CYmemrchr(rl_line_buffer, '\n', after - rl_line_buffer));
+        if (before == NULL)
+            before = rl_line_buffer - 1;
 
-        default:
-            _assert(false);
+        ptrdiff_t offset(rl_line_buffer + rl_point - after);
+        if (offset > after - before)
+            rl_point = after - rl_line_buffer;
+        else
+            rl_point = before + offset - rl_line_buffer;
     }
 
-    std::string begin(prefix.str());
-
-    driver.program_ = $ CYProgram($ CYExpress($C3(ParseExpression(
-    "   function(object, prefix, word) {\n"
-    "       var names = [];\n"
-    "       var before = prefix.length;\n"
-    "       prefix += word;\n"
-    "       var entire = prefix.length;\n"
-    "       for (name in object)\n"
-    "           if (name.substring(0, entire) == prefix)\n"
-    "               names.push(name.substr(before));\n"
-    "       return names;\n"
-    "   }\n"
-    ), expression, $S(begin.c_str()), $S(word))));
-
-    driver.program_->Replace(context);
-
-    std::ostringstream str;
-    CYOutput out(str, options);
-    out << *driver.program_;
-
-    std::string code(str.str());
-    CYUTF8String json(Run(pool, client_, code));
-    // XXX: if this fails we should not try to parse it
-
-    CYExpression *result(ParseExpression(json));
-    if (result == NULL)
-        return NULL;
-
-    CYArray *array(dynamic_cast<CYArray *>(result));
-
-    if (array == NULL) {
-        *out_ << '\n';
-        Output(false, json, out_);
-        rl_forced_update_display();
-        return NULL;
-    }
+    return 0;
+}
 
-    // XXX: use an std::set?
-    typedef std::vector<std::string> Completions;
-    Completions completions;
+static int CYConsoleKeyDown(int count, int key) {
+    while (count-- != 0) {
+        char *after(static_cast<char *>(memchr(rl_line_buffer + rl_point, '\n', rl_end - rl_point)));
+        if (after == NULL) {
+            int where(where_history());
+            if (int value = rl_get_next_history(1, key))
+                return value;
+            if (where != where_history()) {
+                char *first(static_cast<char *>(memchr(rl_line_buffer, '\n', rl_end)));
+                if (first != NULL)
+                    rl_point = first - 1 - rl_line_buffer;
+            }
+            continue;
+        }
 
-    std::string common;
-    bool rest(false);
+        char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (before == NULL)
+            before = rl_line_buffer - 1;
 
-    CYForEach (element, array->elements_) {
-        CYString *string(dynamic_cast<CYString *>(element->value_));
-        _assert(string != NULL);
+        char *next(static_cast<char *>(memchr(after + 1, '\n', rl_line_buffer + rl_end - after - 1)));
+        if (next == NULL)
+            next = rl_line_buffer + rl_end;
 
-        std::string completion;
-        if (string->size_ != 0)
-            completion.assign(string->value_, string->size_);
-        else if (driver.mode_ == CYDriver::AutoMessage)
-            completion = "]";
+        ptrdiff_t offset(rl_line_buffer + rl_point - before);
+        if (offset > next - after)
+            rl_point = next - rl_line_buffer;
         else
-            continue;
+            rl_point = after + offset - rl_line_buffer;
+    }
 
-        completions.push_back(completion);
+    return 0;
+}
 
-        if (!rest) {
-            common = completion;
-            rest = true;
-        } else {
-            size_t limit(completion.size()), size(common.size());
-            if (size > limit)
-                common = common.substr(0, limit);
-            else
-                limit = size;
-            for (limit = 0; limit != size; ++limit)
-                if (common[limit] != completion[limit])
-                    break;
-            if (limit != size)
-                common = common.substr(0, limit);
-        }
-    }
+static int CYConsoleLineBegin(int count, int key) {
+    while (rl_point != 0 && rl_line_buffer[rl_point - 1] != '\n')
+        --rl_point;
+    return 0;
+}
 
-    size_t count(completions.size());
-    if (count == 0)
-        return NULL;
+static int CYConsoleLineEnd(int count, int key) {
+    while (rl_point != rl_end && rl_line_buffer[rl_point] != '\n')
+        ++rl_point;
+    if (rl_point != rl_end && rl_editing_mode == 0)
+        --rl_point;
+    return 0;
+}
 
-    size_t colon(common.find(':'));
-    if (colon != std::string::npos)
-        common = common.substr(0, colon + 1);
-    if (completions.size() == 1)
-        common += ' ';
+static int CYConsoleKeyBack(int count, int key) {
+    while (count-- != 0) {
+        char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+        if (before == NULL)
+            return rl_rubout(count, key);
 
-    char **results(reinterpret_cast<char **>(malloc(sizeof(char *) * (count + 2))));
+        int start(before + 1 - rl_line_buffer);
+        if (start == rl_point) rubout: {
+            rl_rubout(1, key);
+            continue;
+        }
 
-    results[0] = strdup(common.c_str());
-    size_t index(0);
-    for (Completions::const_iterator i(completions.begin()); i != completions.end(); ++i)
-        results[++index] = strdup(i->c_str());
-    results[count + 1] = NULL;
+        for (int i(start); i != rl_point; ++i)
+            if (rl_line_buffer[i] != ' ')
+                goto rubout;
+        rl_rubout((rl_point - start) % 4 ?: 4, key);
+    }
 
-    return results;
+    return 0;
 }
 
-// need char *, not const char *
-static char name_[] = "cycript";
-static char break_[] = " \t\n\"\\'`@$><=;|&{(" ")}" ".:[]";
-
-class History {
-  private:
-    std::string histfile_;
-    size_t histlines_;
+static int CYConsoleKeyTab(int count, int key) {
+    char *before(CYmemrchr(rl_line_buffer, '\n', rl_point));
+    if (before == NULL) complete:
+        return rl_complete_internal(rl_completion_mode(&CYConsoleKeyTab));
+    int start(before + 1 - rl_line_buffer);
+    for (int i(start); i != rl_point; ++i)
+        if (rl_line_buffer[i] != ' ')
+            goto complete;
+    return rl_insert(4 - (rl_point - start) % 4, ' ');
+}
 
-  public:
-    History(std::string histfile) :
-        histfile_(histfile),
-        histlines_(0)
-    {
-        read_history(histfile_.c_str());
+static void CYConsoleRemapBind(Keymap map, rl_command_func_t *from, rl_command_func_t *to) {
+    char **keyseqs(rl_invoking_keyseqs_in_map(from, map));
+    if (keyseqs == NULL)
+        return;
+    for (char **keyseq(keyseqs); *keyseq != NULL; ++keyseq) {
+        rl_bind_keyseq_in_map(*keyseq, to, map);
+        free(*keyseq);
     }
+    free(keyseqs);
+}
 
-    ~History() {
-        if (append_history$ != NULL) {
-            _syscall(close(_syscall(open(histfile_.c_str(), O_CREAT | O_WRONLY, 0600))));
-            _assert((*append_history$)(histlines_, histfile_.c_str()) == 0);
-        } else {
-            _assert(write_history(histfile_.c_str()) == 0);
-        }
-    }
+static void CYConsoleRemapKeys(Keymap map) {
+    CYConsoleRemapBind(map, &rl_beg_of_line, &CYConsoleLineBegin);
+    CYConsoleRemapBind(map, &rl_end_of_line, &CYConsoleLineEnd);
 
-    void operator +=(const std::string &command) {
-        add_history(command_.c_str());
-        ++histlines_;
-    }
-};
+    CYConsoleRemapBind(map, &rl_get_previous_history, &CYConsoleKeyUp);
+    CYConsoleRemapBind(map, &rl_get_next_history, &CYConsoleKeyDown);
 
-static void Console(CYOptions &options) {
-    CYPool pool;
+    CYConsoleRemapBind(map, &rl_rubout, &CYConsoleKeyBack);
+    CYConsoleRemapBind(map, &rl_complete, &CYConsoleKeyTab);
+}
 
-    passwd *passwd;
-    if (const char *username = getenv("LOGNAME"))
-        passwd = getpwnam(username);
-    else
-        passwd = getpwuid(getuid());
+static void CYConsolePrepTerm(int meta) {
+    rl_prep_terminal(meta);
+
+    CYConsoleRemapKeys(emacs_standard_keymap);
+    CYConsoleRemapKeys(emacs_meta_keymap);
+    CYConsoleRemapKeys(emacs_ctlx_keymap);
+    CYConsoleRemapKeys(vi_insertion_keymap);
+    CYConsoleRemapKeys(vi_movement_keymap);
+}
+
+static void Console(CYOptions &options) {
+    std::string basedir;
+    if (const char *home = getenv("HOME"))
+        basedir = home;
+    else {
+        passwd *passwd;
+        if (const char *username = getenv("LOGNAME"))
+            passwd = getpwnam(username);
+        else
+            passwd = getpwuid(getuid());
+        basedir = passwd->pw_dir;
+    }
 
-    std::string basedir(passwd->pw_dir);
     basedir += "/.cycript";
     mkdir(basedir.c_str(), 0700);
 
@@ -436,16 +603,15 @@ static void Console(CYOptions &options) {
     bool bypass(false);
     bool debug(false);
     bool expand(false);
-    bool syntax(true);
+    bool lower(true);
 
     out_ = &std::cout;
 
-    // rl_completer_word_break_characters is broken in libedit
-    rl_basic_word_break_characters = break_;
-
     rl_completer_word_break_characters = break_;
     rl_attempted_completion_function = &Complete;
-    rl_bind_key('\t', rl_complete);
+
+    rl_redisplay_function = CYDisplayUpdate;
+    rl_prep_term_function = CYConsolePrepTerm;
 
     struct sigaction action;
     sigemptyset(&action.sa_mask);
@@ -453,158 +619,142 @@ static void Console(CYOptions &options) {
     action.sa_flags = 0;
     sigaction(SIGINT, &action, NULL);
 
-    restart: for (;;) {
-        command_.clear();
-        std::vector<std::string> lines;
-
-        bool extra(false);
-        const char *prompt("cy# ");
-
+    for (;;) {
         if (setjmp(ctrlc_) != 0) {
             mode_ = Working;
             *out_ << std::endl;
-            goto restart;
+            continue;
         }
 
-      read:
-
-#if RL_READLINE_VERSION >= 0x0600
-        if (syntax) {
-            rl_prep_term_function = CYDisplayStart;
-            rl_redisplay_function = CYDisplayUpdate;
-            rl_deprep_term_function = CYDisplayFinish;
+        if (bypass) {
+            rl_bind_key('\r', &rl_newline);
+            rl_bind_key('\n', &rl_newline);
         } else {
-            rl_prep_term_function = rl_prep_terminal;
-            rl_redisplay_function = rl_redisplay;
-            rl_deprep_term_function = rl_deprep_terminal;
+            rl_bind_key('\r', &CYConsoleKeyReturn);
+            rl_bind_key('\n', &CYConsoleKeyReturn);
         }
-#endif
 
         mode_ = Parsing;
-        char *line(readline(prompt));
+        char *line(readline("cy# "));
         mode_ = Working;
 
         if (line == NULL) {
             *out_ << std::endl;
             break;
-        } else if (line[0] == '\0')
-            goto read;
-
-        if (!extra) {
-            extra = true;
-            if (line[0] == '?') {
-                std::string data(line + 1);
-                if (data == "bypass") {
-                    bypass = !bypass;
-                    *out_ << "bypass == " << (bypass ? "true" : "false") << std::endl;
-                } else if (data == "debug") {
-                    debug = !debug;
-                    *out_ << "debug == " << (debug ? "true" : "false") << std::endl;
-                } else if (data == "expand") {
-                    expand = !expand;
-                    *out_ << "expand == " << (expand ? "true" : "false") << std::endl;
-                } else if (data == "syntax") {
-                    syntax = !syntax;
-                    *out_ << "syntax == " << (syntax ? "true" : "false") << std::endl;
-                }
-                command_ = line;
-                history += command_;
-                goto restart;
-            }
         }
 
-        command_ += line;
+        std::string command(line);
+        free(line);
+        if (command.empty())
+            continue;
+        history += command;
+
+        if (command[0] == '?') {
+            std::string data(command.substr(1));
+            if (data == "bypass") {
+                bypass = !bypass;
+                *out_ << "bypass == " << (bypass ? "true" : "false") << std::endl;
+            } else if (data == "debug") {
+                debug = !debug;
+                *out_ << "debug == " << (debug ? "true" : "false") << std::endl;
+            } else if (data == "destroy") {
+                CYDestroyContext();
+            } else if (data == "gc") {
+                *out_ << "collecting... " << std::flush;
+                CYGarbageCollect(CYGetJSContext());
+                *out_ << "done." << std::endl;
+            } else if (data == "exit") {
+                return;
+            } else if (data == "expand") {
+                expand = !expand;
+                *out_ << "expand == " << (expand ? "true" : "false") << std::endl;
+            } else if (data == "lower") {
+                lower = !lower;
+                *out_ << "lower == " << (lower ? "true" : "false") << std::endl;
+            }
 
-        char *begin(line), *end(line + strlen(line));
-        while (char *nl = reinterpret_cast<char *>(memchr(begin, '\n', end - begin))) {
-            *nl = '\0';
-            lines.push_back(begin);
-            begin = nl + 1;
+            continue;
         }
 
-        lines.push_back(begin);
-
-        free(line);
-
         std::string code;
-
         if (bypass)
-            code = command_;
-        else {
-            CYLocalPool pool;
-
-            std::istringstream stream(command_);
-            CYDriver driver(stream);
+            code = command;
+        else try {
+            std::stringbuf stream(command);
 
-            cy::parser parser(driver);
-            Setup(driver, parser);
+            CYPool pool;
+            CYDriver driver(pool, stream);
+            Setup(driver);
 
-            if (parser.parse() != 0 || !driver.errors_.empty()) {
+            if (driver.Parse() || !driver.errors_.empty()) {
                 for (CYDriver::Errors::const_iterator error(driver.errors_.begin()); error != driver.errors_.end(); ++error) {
-                    cy::position begin(error->location_.begin);
-                    if (begin.line != lines.size() || begin.column < lines.back().size() || error->warning_) {
-                        cy::position end(error->location_.end);
+                    CYPosition begin(error->location_.begin);
+                    CYPosition end(error->location_.end);
 
-                        if (begin.line != lines.size()) {
-                            std::cerr << "  | ";
-                            std::cerr << lines[begin.line - 1] << std::endl;
-                        }
+                    /*if (begin.line != lines2.size()) {
+                        std::cerr << "  | ";
+                        std::cerr << lines2[begin.line - 1] << std::endl;
+                    }*/
 
-                        std::cerr << "....";
-                        for (size_t i(0); i != begin.column; ++i)
-                            std::cerr << '.';
-                        if (begin.line != end.line || begin.column == end.column)
-                            std::cerr << '^';
-                        else for (size_t i(0), e(end.column - begin.column); i != e; ++i)
-                            std::cerr << '^';
-                        std::cerr << std::endl;
+                    std::cerr << "....";
+                    for (size_t i(0); i != begin.column; ++i)
+                        std::cerr << '.';
+                    if (begin.line != end.line || begin.column == end.column)
+                        std::cerr << '^';
+                    else for (size_t i(0), e(end.column - begin.column); i != e; ++i)
+                        std::cerr << '^';
+                    std::cerr << std::endl;
 
-                        std::cerr << "  | ";
-                        std::cerr << error->message_ << std::endl;
+                    std::cerr << "  | ";
+                    std::cerr << error->message_ << std::endl;
 
-                        history += command_;
-                        goto restart;
-                    }
+                    break;
                 }
 
-                driver.errors_.clear();
-
-                command_ += '\n';
-                prompt = "cy> ";
-                goto read;
+                continue;
             }
 
-            if (driver.program_ == NULL)
-                goto restart;
+            if (driver.script_ == NULL)
+                continue;
 
-            std::ostringstream str;
+            std::stringbuf str;
             CYOutput out(str, options);
-            Setup(out, driver, options);
-            out << *driver.program_;
+            Setup(out, driver, options, lower);
+            out << *driver.script_;
             code = str.str();
+        } catch (const CYException &error) {
+            CYPool pool;
+            std::cout << error.PoolCString(pool) << std::endl;
+            continue;
         }
 
-        history += command_;
-
         if (debug) {
-            Write(syntax, code.c_str(), code.size(), std::cout);
+            std::cout << "cy= ";
+            CYLexerHighlight(code.c_str(), code.size(), std::cout);
             std::cout << std::endl;
         }
 
-        Run(client_, syntax, code, out_, expand);
+        CYPool pool;
+        Output(Run(pool, client_, code), &std::cout, expand);
     }
 }
 
-void InjectLibrary(pid_t pid);
-
-int Main(int argc, char const * const argv[], char const * const envp[]) {
-    _aprcall(apr_initialize());
+void InjectLibrary(pid_t, int, const char *const []);
 
-    apr_pool_t *pool;
-    apr_pool_create(&pool, NULL);
+static uint64_t CYGetTime() {
+#ifdef __APPLE__
+    return mach_absolute_time();
+#else
+    struct timespec spec;
+    clock_gettime(CLOCK_MONOTONIC, &spec);
+    return spec.tv_sec * UINT64_C(1000000000) + spec.tv_nsec;
+#endif
+}
 
+int Main(int argc, char * const argv[], char const * const envp[]) {
     bool tty(isatty(STDIN_FILENO));
     bool compile(false);
+    bool target(false);
     CYOptions options;
 
     append_history$ = (int (*)(int, const char *)) (dlsym(RTLD_DEFAULT, "append_history"));
@@ -616,27 +766,35 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
     const char *host(NULL);
     const char *port(NULL);
 
-    apr_getopt_t *state;
-    _aprcall(apr_getopt_init(&state, pool, argc, argv));
+    optind = 1;
 
     for (;;) {
-        char opt;
-        const char *arg;
-
-        apr_status_t status(apr_getopt(state,
-            "cg:n:"
+        int option(getopt_long(argc, argv,
+            "c"
+            "g:"
+            "n:"
 #ifdef CY_ATTACH
             "p:"
 #endif
             "r:"
             "s"
-        , &opt, &arg));
+        , (const struct option[]) {
+            {NULL, no_argument, NULL, 'c'},
+            {NULL, required_argument, NULL, 'g'},
+            {NULL, required_argument, NULL, 'n'},
+#ifdef CY_ATTACH
+            {NULL, required_argument, NULL, 'p'},
+#endif
+            {NULL, required_argument, NULL, 'r'},
+            {NULL, no_argument, NULL, 's'},
+        {0, 0, 0, 0}}, NULL));
 
-        switch (status) {
-            case APR_EOF:
+        switch (option) {
+            case -1:
                 goto getopt;
-            case APR_BADCH:
-            case APR_BADARG:
+
+            case ':':
+            case '?':
                 fprintf(stderr,
                     "usage: cycript [-c]"
 #ifdef CY_ATTACH
@@ -646,23 +804,32 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
                     " [<script> [<arg>...]]\n"
                 );
                 return 1;
-            default:
-                _aprcall(status);
-        }
 
-        switch (opt) {
+            target:
+                if (!target)
+                    target = true;
+                else {
+                    fprintf(stderr, "only one of -[c"
+#ifdef CY_ATTACH
+                    "p"
+#endif
+                    "r] may be used at a time\n");
+                    return 1;
+                }
+            break;
+
             case 'c':
                 compile = true;
-            break;
+            goto target;
 
             case 'g':
                 if (false);
-                else if (strcmp(arg, "rename") == 0)
+                else if (strcmp(optarg, "rename") == 0)
                     options.verbose_ = true;
-#if YYDEBUG
-                else if (strcmp(arg, "bison") == 0)
+                else if (strcmp(optarg, "bison") == 0)
                     bison_ = true;
-#endif
+                else if (strcmp(optarg, "timing") == 0)
+                    timing_ = true;
                 else {
                     fprintf(stderr, "invalid name for -g\n");
                     return 1;
@@ -671,7 +838,7 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
 
             case 'n':
                 if (false);
-                else if (strcmp(arg, "minify") == 0)
+                else if (strcmp(optarg, "minify") == 0)
                     pretty_ = true;
                 else {
                     fprintf(stderr, "invalid name for -n\n");
@@ -681,13 +848,16 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
 
 #ifdef CY_ATTACH
             case 'p': {
-                size_t size(strlen(arg));
+                size_t size(strlen(optarg));
                 char *end;
 
-                pid = strtoul(arg, &end, 0);
-                if (arg + size != end) {
+                pid = strtoul(optarg, &end, 0);
+                if (optarg + size != end) {
                     // XXX: arg needs to be escaped in some horrendous way of doom
-                    const char *command(apr_pstrcat(pool, "ps axc|sed -e '/^ *[0-9]/{s/^ *\\([0-9]*\\)\\( *[^ ]*\\)\\{3\\} *-*\\([^ ]*\\)/\\3 \\1/;/^", arg, " /{s/^[^ ]* //;q;};};d'", NULL));
+                    // XXX: this is a memory leak now because I just don't care enough
+                    char *command;
+                    int writ(asprintf(&command, "ps axc|sed -e '/^ *[0-9]/{s/^ *\\([0-9]*\\)\\( *[^ ]*\\)\\{3\\} *-*\\([^ ]*\\)/\\3 \\1/;/^%s /{s/^[^ ]* //;q;};};d'", optarg));
+                    _assert(writ != -1);
 
                     if (FILE *pids = popen(command, "r")) {
                         char value[32];
@@ -699,10 +869,8 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
                                 break;
                             else {
                                 size += read;
-                                if (size == sizeof(value)) {
-                                    pid = _not(pid_t);
+                                if (size == sizeof(value))
                                     goto fail;
-                                }
                             }
                         }
 
@@ -723,17 +891,17 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
                     }
 
                     if (pid == _not(pid_t)) {
-                        fprintf(stderr, "invalid pid for -p\n");
+                        fprintf(stderr, "unable to find process `%s' using ps\n", optarg);
                         return 1;
                     }
                 }
-            } break;
+            } goto target;
 #endif
 
             case 'r': {
-                //size_t size(strlen(arg));
+                //size_t size(strlen(optarg));
 
-                char *colon(strrchr(arg, ':'));
+                char *colon(strrchr(optarg, ':'));
                 if (colon == NULL) {
                     fprintf(stderr, "missing colon in hostspec\n");
                     return 1;
@@ -741,83 +909,105 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
 
                 /*char *end;
                 port = strtoul(colon + 1, &end, 10);
-                if (end != arg + size) {
+                if (end != optarg + size) {
                     fprintf(stderr, "invalid port in hostspec\n");
                     return 1;
                 }*/
 
-                host = arg;
+                host = optarg;
                 *colon = '\0';
                 port = colon + 1;
-            } break;
+            } goto target;
 
             case 's':
                 strict_ = true;
             break;
+
+            default:
+                _assert(false);
         }
-    } getopt:;
+    }
+
+  getopt:
+    argc -= optind;
+    argv += optind;
 
     const char *script;
-    int ind(state->ind);
 
 #ifdef CY_ATTACH
-    if (pid != _not(pid_t) && ind < argc - 1) {
+    if (pid != _not(pid_t) && argc > 1) {
         fprintf(stderr, "-p cannot set argv\n");
         return 1;
     }
-
-    if (pid != _not(pid_t) && compile) {
-        fprintf(stderr, "-p conflicts with -c\n");
-        return 1;
-    }
 #endif
 
-    if (ind == argc)
+    if (argc == 0)
         script = NULL;
     else {
 #ifdef CY_EXECUTE
         // XXX: const_cast?! wtf gcc :(
-        CYSetArgs(argc - ind - 1, const_cast<const char **>(argv + ind + 1));
+        CYSetArgs(argc - 1, const_cast<const char **>(argv + 1));
 #endif
-        script = argv[ind];
+        script = argv[0];
         if (strcmp(script, "-") == 0)
             script = NULL;
     }
 
-#ifdef CY_ATTACH
-    if (pid != _not(pid_t) && script == NULL && !tty) {
-        fprintf(stderr, "non-terminal attaching to remote console\n");
-        return 1;
-    }
-#endif
-
 #ifdef CY_ATTACH
     if (pid == _not(pid_t))
         client_ = -1;
     else {
-        int server(_syscall(socket(PF_UNIX, SOCK_STREAM, 0))); try {
-            struct sockaddr_un address;
-            memset(&address, 0, sizeof(address));
-            address.sun_family = AF_UNIX;
-
-            sprintf(address.sun_path, "/tmp/.s.cy.%u", getpid());
-
-            _syscall(bind(server, reinterpret_cast<sockaddr *>(&address), SUN_LEN(&address)));
-            _syscall(chmod(address.sun_path, 0777));
-
-            try {
-                _syscall(listen(server, 1));
-                InjectLibrary(pid);
-                client_ = _syscall(accept(server, NULL, NULL));
-            } catch (...) {
-                // XXX: exception?
-                unlink(address.sun_path);
-                throw;
+        struct Socket {
+            int fd_;
+
+            Socket(int fd) :
+                fd_(fd)
+            {
             }
-        } catch (...) {
-            _syscall(close(server));
-            throw;
-        }
+
+            ~Socket() {
+                close(fd_);
+            }
+
+            operator int() {
+                return fd_;
+            }
+        } server(_syscall(socket(PF_UNIX, SOCK_STREAM, 0)));
+
+        struct sockaddr_un address;
+        memset(&address, 0, sizeof(address));
+        address.sun_family = AF_UNIX;
+
+        const char *tmp;
+#if defined(__APPLE__) && (defined(__arm__) || defined(__arm64__))
+        tmp = "/Library/Caches";
+#else
+        tmp = "/tmp";
+#endif
+
+        sprintf(address.sun_path, "%s/.s.cy.%u", tmp, getpid());
+        unlink(address.sun_path);
+
+        struct File {
+            const char *path_;
+
+            File(const char *path) :
+                path_(path)
+            {
+            }
+
+            ~File() {
+                unlink(path_);
+            }
+        } file(address.sun_path);
+
+        _syscall(bind(server, reinterpret_cast<sockaddr *>(&address), SUN_LEN(&address)));
+        _syscall(chmod(address.sun_path, 0777));
+
+        _syscall(listen(server, 1));
+        const char *const argv[] = {address.sun_path, NULL};
+        InjectLibrary(pid, 1, argv);
+        client_ = _syscall(accept(server, NULL, NULL));
     }
 #else
     client_ = -1;
@@ -854,8 +1044,6 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
     if (script == NULL && tty)
         Console(options);
     else {
-        CYLocalPool pool;
-
         std::istream *stream;
         if (script == NULL) {
             stream = &std::cin;
@@ -865,38 +1053,78 @@ int Main(int argc, char const * const argv[], char const * const envp[]) {
             _assert(!stream->fail());
         }
 
-        CYDriver driver(*stream, script);
-        cy::parser parser(driver);
-        Setup(driver, parser);
+        if (timing_) {
+            std::stringbuf buffer;
+            stream->get(buffer, '\0');
+            _assert(!stream->fail());
+
+            double average(0);
+            int samples(-50);
+            uint64_t start(CYGetTime());
+
+            for (;;) {
+                stream = new std::istringstream(buffer.str());
+
+                CYPool pool;
+                CYDriver driver(pool, *stream->rdbuf(), script);
+                Setup(driver);
+
+                uint64_t begin(CYGetTime());
+                driver.Parse();
+                uint64_t end(CYGetTime());
 
-        if (parser.parse() != 0 || !driver.errors_.empty()) {
+                delete stream;
+
+                average += (end - begin - average) / ++samples;
+
+                uint64_t now(CYGetTime());
+                if (samples == 0)
+                    average = 0;
+                else if ((now - start) / 1000000000 >= 1)
+                    std::cout << std::fixed << average << '\t' << (end - begin) << '\t' << samples << std::endl;
+                else continue;
+
+                start = now;
+            }
+
+            stream = new std::istringstream(buffer.str());
+            std::cin.get();
+        }
+
+        CYPool pool;
+        CYDriver driver(pool, *stream->rdbuf(), script);
+        Setup(driver);
+
+        bool failed(driver.Parse());
+
+        if (failed || !driver.errors_.empty()) {
             for (CYDriver::Errors::const_iterator i(driver.errors_.begin()); i != driver.errors_.end(); ++i)
                 std::cerr << i->location_.begin << ": " << i->message_ << std::endl;
-        } else if (driver.program_ != NULL) {
-            std::ostringstream str;
+            return 1;
+        } else if (driver.script_ != NULL) {
+            std::stringbuf str;
             CYOutput out(str, options);
-            Setup(out, driver, options);
-            out << *driver.program_;
+            Setup(out, driver, options, true);
+            out << *driver.script_;
             std::string code(str.str());
             if (compile)
                 std::cout << code;
-            else
-                Run(client_, false, code, &std::cout);
+            else {
+                CYUTF8String json(Run(pool, client_, code));
+                if (CYStartsWith(json, "throw ")) {
+                    CYLexerHighlight(json.data, json.size, std::cerr);
+                    std::cerr << std::endl;
+                    return 1;
+                }
+            }
         }
     }
 
-    apr_pool_destroy(pool);
-
     return 0;
 }
 
-int main(int argc, char const * const argv[], char const * const envp[]) {
-    apr_status_t status(apr_app_initialize(&argc, &argv, &envp));
-
-    if (status != APR_SUCCESS) {
-        fprintf(stderr, "apr_app_initialize() != APR_SUCCESS\n");
-        return 1;
-    } else try {
+int main(int argc, char * const argv[], char const * const envp[]) {
+    try {
         return Main(argc, argv, envp);
     } catch (const CYException &error) {
         CYPool pool;