142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "jim.h"
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#include "jimautoconf.h"
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#include "jim-subcmd.h"
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static int history_cmd_getline(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_Obj *objPtr;
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char *line = Jim_HistoryGetline(interp, Jim_String(argv[0]));
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/* On EOF returns -1 if varName was specified; otherwise the empty string. */
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if (line == NULL) {
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if (argc == 2) {
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Jim_SetResultInt(interp, -1);
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}
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return JIM_OK;
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}
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objPtr = Jim_NewStringObjNoAlloc(interp, line, -1);
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/* Returns the length of the string if varName was specified */
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if (argc == 2) {
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if (Jim_SetVariable(interp, argv[1], objPtr) != JIM_OK) {
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Jim_FreeNewObj(interp, objPtr);
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return JIM_ERR;
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}
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Jim_SetResultInt(interp, Jim_Length(objPtr));
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}
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else {
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Jim_SetResult(interp, objPtr);
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}
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return JIM_OK;
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}
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static int history_cmd_setcompletion(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_HistorySetCompletion(interp, Jim_Length(argv[0]) ? argv[0] : NULL);
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return JIM_OK;
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}
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static int history_cmd_load(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_HistoryLoad(Jim_String(argv[0]));
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return JIM_OK;
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}
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static int history_cmd_save(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_HistorySave(Jim_String(argv[0]));
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return JIM_OK;
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}
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static int history_cmd_add(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_HistoryAdd(Jim_String(argv[0]));
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return JIM_OK;
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}
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static int history_cmd_show(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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Jim_HistoryShow();
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return JIM_OK;
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}
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static int history_cmd_keep(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
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{
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long len;
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if (argc == 1) {
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if (Jim_GetLong(interp, argv[0], &len) != JIM_OK) {
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return JIM_ERR;
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}
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Jim_HistorySetMaxLen(len);
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}
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else {
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Jim_SetResultInt(interp, Jim_HistoryGetMaxLen());
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}
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return JIM_OK;
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}
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static const jim_subcmd_type history_command_table[] = {
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{ "add",
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"line",
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history_cmd_add,
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1,
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1,
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/* Description: Adds the line to the history ands saves */
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},
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{ "completion",
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"command",
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history_cmd_setcompletion,
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1,
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1,
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/* Description: Sets an autocompletion callback command, or none if "" */
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},
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{ "getline",
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"prompt ?varname?",
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history_cmd_getline,
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1,
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2,
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/* Description: Reads one line from the user. Similar to gets. */
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},
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{ "keep",
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"?count?",
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history_cmd_keep,
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0,
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1,
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/* Description: Set or display the max history length */
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},
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{ "load",
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"filename",
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history_cmd_load,
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1,
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1,
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/* Description: Loads history from the given file, if possible */
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},
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{ "save",
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"filename",
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history_cmd_save,
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1,
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1,
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/* Description: Saves history to the given file */
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},
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{ "show",
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NULL,
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history_cmd_show,
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0,
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0,
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/* Description: Displays the history */
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},
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{ NULL }
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};
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int Jim_historyInit(Jim_Interp *interp)
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{
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Jim_PackageProvideCheck(interp, "history");
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Jim_CreateCommand(interp, "history", Jim_SubCmdProc, (void *)history_command_table, NULL);
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return JIM_OK;
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}
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