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jim-readline.c
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jim-readline.c
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/*
* Jim - Readline bindings for Jim
*
* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation
* are those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of the Jim Tcl Project.
*/
#include <jim.h>
#include <readline/readline.h>
#include <readline/history.h>
static int JimRlReadlineCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
char *line;
if (argc != 2) {
Jim_WrongNumArgs(interp, 1, argv, "prompt");
return JIM_ERR;
}
line = readline(Jim_String(argv[1]));
if (!line) {
return JIM_EXIT;
}
Jim_SetResult(interp, Jim_NewStringObj(interp, line, -1));
return JIM_OK;
}
static int JimRlAddHistoryCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
if (argc != 2) {
Jim_WrongNumArgs(interp, 1, argv, "string");
return JIM_ERR;
}
add_history(Jim_String(argv[1]));
return JIM_OK;
}
int Jim_readlineInit(Jim_Interp *interp)
{
if (Jim_PackageProvide(interp, "readline", "1.0", JIM_ERRMSG))
return JIM_ERR;
Jim_CreateCommand(interp, "readline.readline", JimRlReadlineCommand, NULL, NULL);
Jim_CreateCommand(interp, "readline.addhistory", JimRlAddHistoryCommand, NULL, NULL);
return JIM_OK;
}