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commands.c
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/* Bvim - BVi IMproved, binary analysis framework
*
* Copyright 1996-2004 by Gerhard Buergmann <[email protected]>
* Copyright 2011 by Anton Kochkov <[email protected]>
*
* This file is part of Bvim.
*
* Bvim 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.
*
* Bvim 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 Bvim. If not, see <http://www.gnu.org/licenses/>.
*/
#include "bvim.h"
#include "keys.h"
#include "blocks.h"
#include "bmath.h"
#include "search.h"
#include "set.h"
#include "ui.h"
#include "commands.h"
#include "messages.h"
#ifdef HAVE_LUA_H
#include <lua.h>
#include <lauxlib.h>
#include <lualib.h>
#include "bscript.h"
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#define WRITE (O_WRONLY|O_CREAT|O_TRUNC)
#define APPEND (O_WRONLY|O_APPEND)
#include "plugins.h"
#define CMDSZ 256 /* size of the command buffer */
#define MAXNAME 10 /* size of a : command name */
#define NO_ADDR 1
#define NO_ARG 8
#define ONE_ARG 16
#define MAX_ONE_ARG 32
#define ONE_FILE 64
#define MAX_ONE_FILE 128
static char *altfile = NULL; /* alternate file */
static struct stat bbuf;
static int c_argc = 0;
static char *c_argv[9];
// TODO: move messages to messages.h
int repl_count = -1;
int addr_flag;
PTR start_addr;
PTR end_addr;
//extern core_t core;
//extern state_t state;
extern char *name; /* actual filename */
extern char **files; /* used for "next" and "rewind" */
extern int numfiles, curfile;
extern int errno;
static char oldbuf[CMDSZ]; /** for :!! command **/
/* -------------------------------------------------------------
* Internal functions
* -------------------------------------------------------------
*/
int CmdAdd(core_t *core, command_t *item)
{
if (core->cmdmap.items == core->cmdmap.allocated) {
if (core->cmdmap.allocated == 0)
core->cmdmap.allocated = 3;
else
core->cmdmap.allocated += 4;
void *_tmp =
realloc(core->cmdmap.arr,
(core->cmdmap.allocated * sizeof(command_t)));
if (!_tmp) {
fprintf(stderr, "ERROR [CmdAdd]: Couldn't realloc memory!\n");
return (-1);
}
core->cmdmap.arr = (struct command *)_tmp;
}
core->cmdmap.arr[core->cmdmap.items] = *item;
core->cmdmap.items++;
return core->cmdmap.items;
}
int CmdDel(core_t *core, char *name)
{
int i = 0;
while (i < core->cmdmap.items) {
if (strcmp(name, core->cmdmap.arr[i].name) == 0) {
core->cmdmap.arr[i].enabled = 0;
return 0;
}
i++;
}
return -1;
}
int CmdDefaults(core_t *core)
{
int i = 0;
struct command cmds_def[] = {
{ 1, "help", "show usage for every command", 1, BVI_HANDLER_INTERNAL, { .func = command__help }, 4, 2},
{ 2, "map", "", 1, BVI_HANDLER_INTERNAL, { .func = command__map }, 3, 2},
{ 3, "unmap", "", 1, BVI_HANDLER_INTERNAL, { .func = command__unmap }, 5, 2},
{ 4, "set", "", 1, BVI_HANDLER_INTERNAL, { .func = command__set }, 3, 2},
{ 5, "block", "", 1, BVI_HANDLER_INTERNAL, { .func = command__block }, 5, 2},
{ 6, "lua", "", 1, BVI_HANDLER_INTERNAL, { .func = command__lua }, 3, 2},
{ 7, "args", "", 1, BVI_HANDLER_INTERNAL, { .func = command__args }, 4, 2},
{ 8, "source", "", 1, BVI_HANDLER_INTERNAL, { .func = command__source }, 6, 2},
{ 9, "run", "", 1, BVI_HANDLER_INTERNAL, { .func = command__run }, 3, 2},
{ 10, "cd", "", 1, BVI_HANDLER_INTERNAL, { .func = command__cd }, 2, 2},
{ 11, "edit", "", 1, BVI_HANDLER_INTERNAL, { .func = command__edit }, 4, 1},
{ 12, "file", "", 1, BVI_HANDLER_INTERNAL, { .func = command__file }, 4, 1},
{ 13, "read", "", 1, BVI_HANDLER_INTERNAL, { .func = command__read }, 4, 1},
{ 14, "xit", "", 1, BVI_HANDLER_INTERNAL, { .func = command__xit }, 3, 1},
{ 15, "next", "", 1, BVI_HANDLER_INTERNAL, { .func = command__next }, 4, 1},
{ 16, "rewind", "", 1, BVI_HANDLER_INTERNAL, { .func = command__rewind }, 6, 3},
{ 17, "append", "", 1, BVI_HANDLER_INTERNAL, { .func = command__append }, 6, 1},
{ 18, "change", "", 1, BVI_HANDLER_INTERNAL, { .func = command__change }, 6, 1},
{ 19, "mark", "", 1, BVI_HANDLER_INTERNAL, { .func = command__mark }, 4, 2},
{ 20, "yank", "", 1, BVI_HANDLER_INTERNAL, { .func = command__yank }, 4, 1},
{ 21, "overwrite", "", 1, BVI_HANDLER_INTERNAL, { .func = command__overwrite }, 9, 1},
{ 22, "undo", "", 1, BVI_HANDLER_INTERNAL, { .func = command__undo }, 4, 1},
{ 23, "version", "", 1, BVI_HANDLER_INTERNAL, { .func = command__version }, 7, 2},
{ 24, "shell", "", 1, BVI_HANDLER_INTERNAL, { .func = command__shell }, 5, 2},
{ 25, "quit", "", 1, BVI_HANDLER_INTERNAL, { .func = command__quit }, 4, 1},
{ 26, "sleft", "", 1, BVI_HANDLER_INTERNAL, { .func = command__sleft }, 5, 2},
{ 27, "sright", "", 1, BVI_HANDLER_INTERNAL, { .func = command__sright }, 6, 2},
{ 28, "rleft", "", 1, BVI_HANDLER_INTERNAL, { .func = command__rleft }, 5, 2},
{ 29, "rright", "", 1, BVI_HANDLER_INTERNAL, { .func = command__rright }, 6, 2},
{ 30, "and", "", 1, BVI_HANDLER_INTERNAL, { .func = command__and }, 3, 2},
{ 31, "or", "", 1, BVI_HANDLER_INTERNAL, { .func = command__or }, 2, 2},
{ 32, "xor", "", 1, BVI_HANDLER_INTERNAL, { .func = command__xor }, 3, 2},
{ 33, "neg", "", 1, BVI_HANDLER_INTERNAL, { .func = command__neg }, 3, 2},
{ 34, "not", "", 1, BVI_HANDLER_INTERNAL, { .func = command__not }, 3, 2},
{ 35, "fuz", "fuzzy search command", 1, BVI_HANDLER_INTERNAL, { .func = command__fuz }, 3, 2},
{ 0, NULL, NULL, 0, 0, { NULL }, 0, 0 }
};
while (cmds_def[i].id != 0) {
CmdAdd(core, &cmds_def[i]);
i++;
}
return 0;
}
/* ------------------------------------------------------
* Exported functions
* ------------------------------------------------------
*/
void commands__Init(core_t *core)
{
core->cmdmap.arr = NULL;
core->cmdmap.items = 0;
core->cmdmap.allocated = 0;
CmdDefaults(core);
}
void commands__Destroy(core_t *core)
{
free(core->cmdmap.arr);
}
int commands__Cmd_Add(core_t *core, command_t *new_cmd)
{
CmdAdd(core, new_cmd);
return 0;
}
int commands__Cmd_Del(core_t *core, char* name)
{
CmdDel(core, name);
return 0;
}
/* =================== Command handlers ===================== */
char luacmdbuf[CMDSZ];
static char* tmp_cmd;
// :help
int command__help(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
int i = 0;
if (c_argc == 0) {
bvim_error(core, buf, "What?");
} else if (c_argc == 1) {
while (i < core->cmdmap.items) {
if (strncmp(c_argv[0], core->cmdmap.arr[i].name, strlen(core->cmdmap.arr[i].name))) {
bvim_error(core, buf, "Command not exist!");
} else {
bvim_info(core, buf, core->cmdmap.arr[i].description);
return 0;
}
i++;
}
}
return -1;
}
// :map
int command__map(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
int n = 0;
bkey_t *key_tmp;
if (c_argc == 0) {
bvim_error(core, buf, "Error: empty mapping definition!");
} else if (c_argc == 1) {
if (strncmp(c_argv[0], "all", 3)) {
bvim_error(core, buf, "Map what?");
} else {
keys__KeyMaps_Show(core);
}
} else {
luacmdbuf[0] = '\0';
for (n = 1; n < c_argc; n++) {
strcat(luacmdbuf, " ");
strcat(luacmdbuf, c_argv[n]);
}
key_tmp = keys__KeyString_Parse(core, c_argv[0]);
if (!keys__Key_Map(core, key_tmp))
bvim_error(core, buf, "Error: can't set new key mapping!");
return 0;
}
return -1;
}
// :unmap
int command__unmap(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
bkey_t *key_tmp;
if (c_argc != 1) {
bvim_error(core, buf, "Error: empty mapping definition!");
} else {
key_tmp = keys__KeyString_Parse(core, c_argv[0]);
if (!keys__Key_Unmap(core, key_tmp))
bvim_error(core, buf, "Error: can't remove key mapping!");
return 0;
}
return -1;
}
// :set
int command__set(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
int n = 0;
if (chk_comm(core, buf, NO_ADDR))
return -1;
if (c_argc == 0) {
doset(core, NULL);
} else {
for (n = 0; n < c_argc; n++) {
if (doset(core, c_argv[n]))
return 0;
}
}
return -1;
}
/* COMMAND: ":block"
*
* Syntax:
* :block add <start> <end>
* or
* :block add <start> +size
* where size can be 456, 15K, 20M
* :block del <id>
* or
* :block del <start>
* or
* :block info <id>
* or
* :block list
* or
* :block save <id> <filename>
* or
* :block yank <id>
*/
int command__block(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
struct block_item tmp_blk;
struct block_item *blkblk;
if (c_argc == 0) {
return -1;
} else {
/* :block add */
if (!strncmp(c_argv[0], "add", 3)) {
if (c_argc == 5) {
/* Filling info into tmp_blk structure */
tmp_blk.id = (unsigned int)atoi(c_argv[1]); // block id
if (atoi(c_argv[2]) < atoi(c_argv[3])) {
tmp_blk.pos_start = math__eval(MATH_ARITH, c_argv[2]);
tmp_blk.pos_end = math__eval(MATH_ARITH, c_argv[3]);
if ((atoi(c_argv[4]) < 0) | (atoi(c_argv[4]) > 6))
tmp_blk.palette = C_HX;
else
tmp_blk.palette = atoi(c_argv[4]);
tmp_blk.hl_toggle = 1;
tmp_blk.folding = 0;
/* Allocating new block and inserting it into blocks list */
blocks__Add(buf, tmp_blk);
// Adding block to highlights
ui__BlockHighlightAdd(&tmp_blk);
// this we need to remove too
blkblk = blocks__GetByID(buf, tmp_blk.id);
bvim_info(core, buf, "Added block: start %ld end %ld", blkblk->pos_start, blkblk->pos_end);
ui__Screen_Repaint(core, buf);
} else {
bvim_error(core, buf, "Wrong block start and end values!");
return -1;
}
} else {
bvim_error(core, buf, "Wrong :block command format!");
return -1;
}
/* :block del */
} else if (!strncmp(c_argv[0], "del", 3)) {
/* :block info */
} else if (!strncmp(c_argv[0], "info", 4)) {
if (c_argc == 2) {
blkblk = blocks__GetByID(buf, (unsigned int)atoi(c_argv[1])); // block id
if (blkblk != NULL) {
bvim_info(core, buf, "Block #%d [%ld, %ld], %s", blkblk->id, blkblk->pos_start, blkblk->pos_end, blkblk->annotation);
} else {
bvim_error(core, buf, "Can't find block with %d id!", (unsigned int)atoi(c_argv[1]));
return -1;
}
} else {
bvim_error(core, buf, "Wrong :block command format!");
return -1;
}
/* :block list */
} else if (!strncmp(c_argv[0], "list", 4)) {
/* :block save */
} else if (!strncmp(c_argv[0], "save", 4)) {
/* :block yank */
} else if (!strncmp(c_argv[0], "yank", 4)) {
/* :block fold */
} else if (!strncmp(c_argv[0], "fold", 4)) {
if (c_argc == 1) {
blkblk = blocks__GetByID(buf, (unsigned int)atoi(c_argv[1])); // block id
if (blkblk != NULL) {
blkblk->folding = 1;
ui__Screen_Repaint(core, buf);
}
}
/* :block annotation */
} else if (!strncmp(c_argv[0], "note", 4)) {
if (c_argc == 3) {
blkblk = blocks__GetByID(buf, (unsigned int)atoi(c_argv[1])); // block id
if (blkblk != NULL) {
blkblk->annotation = c_argv[2]; // FIXME: Use valid string copy function !
} else {
bvim_error(core, buf, "Can't find block with %d id!", (unsigned int)atoi(c_argv[1]));
return -1;
}
} else {
bvim_error(core, buf, "Wrong :block command format!");
return -1;
}
} else {
bvim_error(core, buf, "Wrong :block command format!");
return -1;
}
}
return 0;
}
// :lua
int command__lua(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
int n = 0;
if (c_argc == 0) {
bvim_error(core, buf, "Error: empty lua command!");
} else {
luacmdbuf[0] = '\0';
for (n = 0; n < c_argc; n++) {
strcat(luacmdbuf, " ");
strcat(luacmdbuf, c_argv[n]);
}
bvim_run_lua_string(core, buf, luacmdbuf);
}
return 0;
}
// :args
int command__args(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
int n = 0;
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
string[0] = '\0';
for (n = 0; n < numfiles; n++) {
if (n == curfile)
strcat(string, "[");
strcat(string, files[n]);
if (n == curfile)
strcat(string, "]");
strcat(string, " ");
}
bvim_info(core, buf, string);
return 0;
}
// :source
int command__source(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | ONE_FILE))
return -1;
if (read_rc(core, c_argv[0]))
bvim_error(core, buf, c_argv[0]);
refresh();
return 0;
}
// :run
int command__run(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 0) {
bvim_error(core, buf, "Error: empty plugin name!");
} else {
bvim_run_lua_script(core, buf, c_argv[0]);
}
return 0;
}
// :cd
int command__cd(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | ONE_FILE))
return -1;
if (!(flags & FLAG_FORCE)) {
if (edits) {
if (P(P_AW)) {
save(core, buf, name, WRITE);
edits = 0;
} else {
bvim_error(core, buf, BVI_ERROR_NOWRITE, "cd");
return -1;
}
}
}
if (c_argc == 0) {
sprintf(string, "%c", DELIM);
c_argv[0] = string;
}
if (chdir(c_argv[0]))
bvim_error(core, buf, c_argv[0]);
return 0;
}
// :edit
int command__edit(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
/*
* The command ":e#" gets expanded to something like ":efile", so
* detect that case here.
*/
if (*tmp_cmd == 'e' && c_argc == 0) {
if (tmp_cmd[1] == '!')
(void)doecmd(core, buf, &tmp_cmd[2], TRUE);
else
(void)doecmd(core, buf, &tmp_cmd[1], FALSE);
return 0;
}
if (chk_comm(core, buf, NO_ADDR | MAX_ONE_FILE))
return -1;
doecmd(core, buf, c_argv[0], flags & FLAG_FORCE);
return 0;
}
// :file
int command__file(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | MAX_ONE_FILE))
return -1;
if (c_argc != 0)
name = strdup(c_argv[0]);
fileinfo(core, buf, name);
return 0;
}
// :read
int command__read(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | MAX_ONE_FILE))
return -1;
/* read reads a file at EOF */
if (c_argc == 0)
c_argv[0] = name;
if (!addfile(core, buf, c_argv[0])) {
edits = U_TRUNC;
undosize = filesize;
ui__Screen_Repaint(core, buf);
}
return 0;
}
// :xit
int command__xit(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
do_exit(core);
return 0;
}
// :next
int command__next(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
if (!(flags & FLAG_FORCE)) {
if (edits) {
if (P(P_AW)) {
save(core, buf, name, WRITE);
edits = 0;
} else {
bvim_error(core, buf, BVI_ERROR_NOWRITE, "next");
return -1;
}
}
}
if ((curfile + 1) < numfiles) {
if (flags & FLAG_FORCE)
stuffin(":e! ");
else
stuffin(":e ");
stuffin(files[++curfile]);
stuffin("\n");
} else
bvim_error(core, buf, "No more files@to edit!");
return 0;
}
// :rewind
int command__rewind(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
if (numfiles <= 1) /* nothing to rewind */
return -1;
if (!(flags & FLAG_FORCE)) {
if (edits) {
if (P(P_AW)) {
save(core, buf, name, WRITE);
edits = 0;
} else {
bvim_error(core, buf, BVI_ERROR_NOWRITE, "rewind");
return -1;
}
}
}
curfile = 0;
if (flags & FLAG_FORCE)
stuffin(":e! ");
else
stuffin(":e ");
stuffin(files[0]);
stuffin("\n");
return 0;
}
// :append
int command__append(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | MAX_ONE_ARG))
return -1;
do_ins_chg(core, buf, start_addr, c_argc == 1 ? c_argv[0] : "a", U_APPEND);
return 0;
}
// :change
int command__change(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, MAX_ONE_ARG))
return -1;
if (!addr_flag)
start_addr = buf->state.current;
do_ins_chg(core, buf, start_addr, c_argc == 1 ? c_argv[0] : "a", U_EDIT);
return 0;
}
// :mark
int command__mark(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 0) {
bvim_error(core, buf, "Mark what?");
return -1;
}
if (c_argc > 1 || (strlen(c_argv[0]) > 1)) {
bvim_error(core, buf, BVI_ERROR_EXTRACHARS);
return -1;
}
if (!addr_flag)
start_addr = buf->state.current;
do_mark(buf, c_argv[0][0], start_addr);
return 0;
}
// :yank
int command__yank(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if ((yanked = yd_addr(core, buf)) == 0L)
return -1;
if ((yanked = alloc_buf(core, buf, yanked, &yank_buf)) == 0L)
return -1;
memcpy(yank_buf, start_addr, yanked);
bvim_info(core, buf, "%lu bytes", (long)yanked);
return 0;
}
// :overwrite
int command__overwrite(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ARG))
return -1;
if (!addr_flag)
start_addr = buf->state.current;
do_over(core, buf, start_addr, yanked, yank_buf);
return 0;
}
// :undo
int command__undo(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
do_undo(core, buf);
return 0;
}
// :version
int command__version(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
bvim_info(core, buf, "bvim version %s %s", VERSION, copyright);
return 0;
}
// :shell
int command__shell(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
do_shell(core, buf);
clear();
ui__Screen_Repaint(core, buf);
ui__clearstr(core, buf);
return 0;
}
// :quit
int command__quit(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (chk_comm(core, buf, NO_ADDR | NO_ARG))
return -1;
if (!(flags & FLAG_FORCE)) {
if (edits) {
bvim_error(core, buf, BVI_ERROR_NOWRITE, "quit");
return -1;
} else {
if ((curfile + 1) < numfiles) {
bvim_error(core,buf, "%d %s", numfiles - curfile - 1, BVI_ERROR_MOREFILES);
return -1;
} else
quit(core, buf);
return 0;
}
} else
quit(core, buf);
return 0;
}
// TODO: Implement math expressions calculations here
// :sleft
int command__sleft(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, LSHIFT, c_argv[0]);
} else if (c_argc == 0) {
math__logic(core, buf, LSHIFT, "1");
} else if (c_argc == 2) {
math__logic_block(core, buf, LSHIFT, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :sright
int command__sright(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, RSHIFT, c_argv[0]);
} else if (c_argc == 0) {
math__logic(core, buf, RSHIFT, "1");
} else if (c_argc == 2) {
math__logic_block(core, buf, RSHIFT, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :rleft
int command__rleft(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, LROTATE, c_argv[0]);
} else if (c_argc == 0) {
math__logic(core, buf, LROTATE, "1");
} else if (c_argc == 2) {
math__logic_block(core, buf, LROTATE, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :rright
int command__rright(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, RROTATE, c_argv[0]);
} else if (c_argc == 0) {
math__logic(core, buf, RROTATE, "1");
} else if (c_argc == 2) {
math__logic_block(core, buf, RROTATE, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :and
int command__and(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, AND, c_argv[0]);
} else if (c_argc == 0) {
bvim_error(core, buf, BVI_ERROR_NOVAL);
return -1;
} else if (c_argc == 2) {
math__logic_block(core, buf, AND, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :or
int command__or(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, OR, c_argv[0]);
} else if (c_argc == 0) {
bvim_error(core, buf, BVI_ERROR_NOVAL);
return -1;
} else if (c_argc == 2) {
math__logic_block(core, buf, OR, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :xor
int command__xor(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc == 1) {
math__logic(core, buf, XOR, c_argv[0]);
} else if (c_argc == 0) {
bvim_error(core, buf, BVI_ERROR_NOVAL);
return -1;
} else if (c_argc == 2) {
math__logic_block(core, buf, XOR, c_argv[0], atoi(c_argv[1]));
} else {
bvim_error(core, buf, BVI_ERROR_AMBVALUE);
return -1;
}
return 0;
}
// :neg
int command__neg(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc != 0) {
bvim_error(core, buf, BVI_ERROR_EXTRACHARS);
return -1;
}
math__logic(core, buf, NEG, "255");
return 0;
}
// :not
int command__not(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
if (c_argc != 0) {
bvim_error(core, buf, BVI_ERROR_EXTRACHARS);
return -1;
}
math__logic(core, buf, NOT, "255");
return 0;
}
// TODO: Add blocks support
// TODO: Show matches in tools window, with scrolling
int command__fuz(core_t *core, buf_t *buf, char flags, int c_argc, char **c_argv) {
struct found fnd;
int distance;
if (c_argc == 1) {
distance = 1;
fnd = fuzzy_search(core, buf, filesize, c_argv[0], strlen(c_argv[0]), FUZZY_BITAP_HAMMINGTON_DISTANCE, distance);
bvim_info(core, buf, "Found %d matches", fnd.cnt);
} else if (c_argc == 2) {
distance = atoi(c_argv[0]);
fnd = fuzzy_search(core, buf, filesize, c_argv[1], strlen(c_argv[1]), FUZZY_BITAP_HAMMINGTON_DISTANCE, distance);
bvim_info(core, buf, "Found %d matches", fnd.cnt);
} else {
bvim_error(core, buf, BVI_ERROR_EXTRACHARS);
return -1;
}
return 0;
}
/* =============== End of command handlers ================== */
/*
* docmdline() - handle a colon command
*
* Handles a colon command received interactively by getcmdln() or from
* the environment variable "BVIINIT" (or eventually .bvimrc).
*/
void docmdline(core_t *core, buf_t *buf, char* cmdline)
{
char buff[CMDSZ];
char cmdbuf[CMDSZ];
char cmdname[MAXNAME];
char *p;
size_t len;
int n, ok, j = 0;
char flags = 0;
int saveflag;
int shresult;
char *cmd;
int cmd_recognized = 0;
if (cmdline == NULL)
return;
if (*cmdline == '"')
return; /** comment **/
if (strlen(cmdline) > CMDSZ - 2) {
bvim_error(core, buf, "Command too long");
return;
}
strcpy(buff, cmdline);
cmd = buff;
/* With no address given, we start at the beginning of the file and
* go to the end of the file (not line like in vi).
*/
addr_flag = 0;
start_addr = buf->mem;
end_addr = buf->maxpos - 1;
SKIP_WHITE if (*cmd == '%') {
cmd++;
addr_flag = 2;
} else {
if ((start_addr = calc_addr(core, buf, &cmd, buf->mem)) == NULL) {
return;
}
if (*cmd == ',') {
cmd++;
addr_flag = 1;
SKIP_WHITE
if ((end_addr =
calc_addr(core, buf, &cmd, buf->maxpos - 1)) == NULL) {
return;
}
} else {
if (addr_flag) {
/* if we have only one address */
end_addr = start_addr;
}
}
}
SKIP_WHITE if (start_addr > (end_addr + 1)) {
bvim_error(core, buf, "Addr1 > addr2|First address exceeds second");
return;
}
if ((end_addr + 1) > buf->maxpos) {
bvim_error(core, buf, "Not that many bytes@in buffer");
return;
}
if (start_addr < buf->mem) {
bvim_error(core, buf, "Negative address@- first byte is %ld", P(P_OF));
return;
}
SKIP_WHITE
/**** End of address range calculation ****/
if (*cmd == '\0') {
setpage(core, buf, end_addr);
return;
}
strcpy(cmdbuf, cmd); /* save the unmodified command */
record_cmd(core, cmd);
if (*cmd == '!') {
if (*(cmdbuf + 1) == '\0') {
bvim_error(core, buf, "Incomplete shell escape command@- use 'shell' to get a shell");
return;
}
if (*(cmdbuf + 1) == '!') {
if (oldbuf[0] != '\0') {
strcpy(cmdbuf + 1, oldbuf);
bvim_info(core, buf, oldbuf);
} else {
bvim_error(core, buf, "No previous command@to substitute for !");
return;
}
} else
sprintf(oldbuf, "\n%s\n", cmdbuf + 1);
if (P(P_AW)) {
save(core, buf, name, WRITE);
edits = 0;
}
if (edits)
bvim_info(core, buf, "[No write]|[No write since last change]");
savetty();
endwin();
shresult = system(cmdbuf + 1);
if (shresult == SIGQUIT)
fprintf(stderr, "[Shell execution error]");
fprintf(stderr, "[Hit return to continue]");
getchar();
doupdate();
ui__Screen_Repaint(core, buf);
ui__clearstr(core, buf);
return;
}
n = 0;
while (*cmd >= 'a' && *cmd <= 'z') {
cmdname[n++] = *cmd++;
if (n == MAXNAME) {
bvim_error(core, buf, "What?|%s: Not an editor command 1", cmdbuf);
return;
}
}
cmdname[n] = '\0';
if (*cmd == '!') {
flags |= FLAG_FORCE;
cmd++;
}
len = strlen(cmdname);
SKIP_WHITE if (!strncmp("substitute", cmdname, len) && CMDLNG(10, 1)) {
repl_count = do_substitution(core, buf, *cmd, cmd + 1, start_addr, end_addr);
if (repl_count == -1) {
bvim_error(core, buf, "No previous substitute re|No previous substitute regular expression");
return; /* No prev subst */
}
ui__Screen_Repaint(core, buf);
if (!repl_count) {
bvim_error(core, buf, "Fail|Substitute pattern matching failed");
} else if (repl_count > 1) {
bvim_info(core, buf, "%d subs|%d substitutions", repl_count, repl_count);
}
return;
} else if (!strncmp("global", cmdname, len) && CMDLNG(6, 1)) {
buf->state.current = start_addr - 1;
repl_count = 0;
addch('\n');
while ((buf->state.current = searching(core, buf, *cmd, cmd + 1, buf->state.current, end_addr, FALSE | S_GLOBAL)) != 0L) {
addch('\n');
ui__Line_Print(core, buf, buf->state.current, core->screen.maxy - 1);
repl_count++;
if (repl_count == LINES - 2) {
if (wait_return(core, buf, FALSE))
return;
repl_count = 0;
}
}
if (repl_count) {
wait_return(core, buf, TRUE);