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/* ==================================================================
FILE: "/home/joze/src/tclreadline/tclreadline.c"
LAST MODIFICATION: "Tue Aug 31 03:22:55 1999 (joze)"
FILE: "/diska/home/joze/src/tclreadline/tclreadline.c"
LAST MODIFICATION: "Wed Sep 1 18:58:04 1999 (joze)"
(C) 1998, 1999 by Johannes Zellner, <johannes@zellner.org>
$Id$
---
tclreadline -- gnu readline for tcl
Copyright (C) 1999 Johannes Zellner
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#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define READLINE_LIBRARY
#include <readline.h>
#include <history.h>
/**
* this prototype is missing
* in readline.h
*/
void rl_extend_line_buffer(int len);
#include "tclreadline.h"
#define MALLOC(size) Tcl_Alloc((int) size)
#define FREE(ptr) if (ptr) { Tcl_Free((char*) ptr); ptr = 0; }
enum {
_CMD_SET = (1 << 0),
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*/
char* stripleft(char* in);
char* stripright(char* in);
char* stripwhite(char* in);
char* TclReadlineQuote(char* text, char* quotechars);
int TclReadlineCmd(ClientData clientData, Tcl_Interp* interp,
int argc, char** argv);
int TclReadlineEventHook(void);
void TclReadlineDataAvailableHandler(ClientData clientData, int mask);
void TclReadlineReadHandler(ClientData clientData, int mask);
void TclReadlineWriteHandler(ClientData clientData, int mask);
void TclReadlineLineCompleteHandler(char* ptr);
int Tclreadline_SafeInit(Tcl_Interp* interp);
int Tclreadline_Init(Tcl_Interp* interp);
char *TclReadlineFilenameQuotingFunction(
char *text, int match_type, char* quote_ptr);
int TclReadlineInitialize(Tcl_Interp* interp, char* historyfile);
int blank_line(char* str);
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length = strlen(argv[1]);
if (c == 'r' && strncmp(argv[1], "read", length) == 0) {
char* expansion = (char*) NULL;
int status;
#if 1
tclrl_line_complete = LINE_PENDING;
tclrl_state = TCL_OK;
rl_callback_handler_install(argc == 3 ? argv[2] : "%",
TclReadlineLineCompleteHandler);
Tcl_CreateFileHandler(0, TCL_READABLE,
TclReadlineDataAvailableHandler, (ClientData) NULL);
TclReadlineReadHandler, (ClientData) NULL);
/*
Tcl_CreateFileHandler(1, TCL_WRITABLE,
TclReadlineWriteHandler, (ClientData) NULL);
*/
/**
* Main Loop.
* XXX each modification of the global variables
* which terminates the main loop must call
* rl_callback_handler_remove() to leave
* readline in a defined state. XXX
*/
while (LINE_PENDING == tclrl_line_complete
&& TCL_OK == tclrl_state && !rl_done) {
Tcl_DoOneEvent(0);
Tcl_DoOneEvent(TCL_ALL_EVENTS);
/*
Tcl_DoOneEvent(0);
fprintf (stderr, "(TclReadlineCmd) \n");
rl_inhibit_completion = 0;
*/
}
Tcl_DeleteFileHandler(0);
if (TCL_OK != tclrl_state)
return tclrl_state; /* !! */
if ((LINE_EOF == tclrl_line_complete) && tclrl_eof_string) {
Tcl_Eval(interp, tclrl_eof_string);
return tclrl_state;
}
#else
rl_event_hook = TclReadlineEventHook;
tclrl_line = readline(argc == 3 ? argv[2] : "%");
#endif
status = history_expand(tclrl_line, &expansion);
if (status >= 1) {
#if 0
Tcl_Channel channel = Tcl_MakeFileChannel(stdout, TCL_WRITABLE);
/* Tcl_RegisterChannel(interp, channel); */
(void) Tcl_WriteChars(channel, expansion, -1);
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Tcl_AppendResult(interp,
"wrong # args: should be \"readline option ?arg ...?\"",
(char*) NULL);
return TCL_ERROR;
}
int TclReadlineEventHook(void)
{
Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
/*
TCL_DONT_WAIT
TCL_WINDOW_EVENTS
TCL_FILE_EVENTS
TCL_TIMER_EVENTS
TCL_IDLE_EVENTS
TCL_ALL_EVENTS
*/
}
void
TclReadlineDataAvailableHandler(ClientData clientData, int mask)
TclReadlineReadHandler(ClientData clientData, int mask)
{
#if 0
fprintf(stderr, "(TclReadlineDataAvailableHandler) mask = %d\n", mask);
fprintf(stderr, "(TclReadlineReadHandler) mask = %d\n", mask);
#endif
if (mask & TCL_READABLE) {
/*
fprintf(stderr, "(TclReadlineReadHandler) mask = readable\n");
rl_event_hook = TclReadlineEventHook;
while (!rl_done) {
*/
rl_callback_read_char();
rl_callback_read_char();
/*
}
fflush(stdin);
*/
}
}
void
TclReadlineWriteHandler(ClientData clientData, int mask)
{
if (mask & TCL_WRITABLE) {
/*
fprintf(stderr, "(TclReadlineReadHandler) mask = writable\n");
*/
fflush(stdout);
rl_redisplay();
}
}
void
TclReadlineLineCompleteHandler(char* ptr)
{
#if 1
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