summaryrefslogtreecommitdiffstats
path: root/kxsldbg/simpleio.c
blob: 900a698a04d65c8eff14851d62edbe2469d549ba (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144

/***************************************************************************
                          simpleio.c  - use console io only
                             -------------------
    begin                : Sun Dec 23 2001
    copyright            : (C) 2001 by Keith Isdale
    email                : k_isdale@tpg.com.au
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "kxsldbgpart/libxsldbg/xsldbg.h"

#include <libxslt/xsltutils.h>

#ifdef HAVE_READLINE
#include <readline/readline.h>
#ifdef HAVE_HISTORY
#include <readline/history.h>
#endif
#endif

#include <string.h>

#include "kxsldbgpart/libxsldbg/xsldbgmsg.h"
#include "kxsldbgpart/libxsldbg/xsldbgio.h"
#include "kxsldbgpart/libxsldbg/options.h"


int notifyXsldbgApp(XsldbgMessageEnum type, const void *data)
{
  return 1;
}

int notifyStateXsldbgApp(XsldbgMessageEnum type, int commandId,
			   XsldbgCommandStateEnum commandState, const char *text)
{
  return 1;
}

int notifyTextXsldbgApp(XsldbgMessageEnum type, const char *text)
{
  return 1;
}


/* use this function instead of the one that was in debugXSL.c */
/**
 * xslShellReadline:
 * @prompt:  the prompt value
 *
 * Read a string
 *
 * Returns a copy of the text inputed or NULL if EOF in stdin found.
 *    The caller is expected to free the returned string.
 */
xmlChar *
xslDbgShellReadline(xmlChar * prompt)
{

  static char last_read[DEBUG_BUFFER_SIZE] = { '\0' };

#ifdef HAVE_READLINE

      xmlChar *line_read;

      if (optionsGetIntOption(OPTIONS_STDOUT) == 0){
	/* Get a line from the user. */
	line_read = (xmlChar *) readline((char *) prompt);

	/* If the line has any text in it, save it on the history. */
	if (line_read && *line_read) {
	  char *temp = (char*)line_read;
	  add_history((char *) line_read);
	  strncpy((char*)last_read, (char*)line_read, DEBUG_BUFFER_SIZE - 1);
	  /* we must ensure that the data is free properly */
	  line_read = xmlStrdup((xmlChar*)line_read);
	  free(temp);
	} else {
	  free(line_read);
	  /* if only <Enter>is pressed then try last saved command line */
	  line_read = xmlStrdup((xmlChar*)last_read);
	}
      }else{
	/* readline library will/may  echo its output which is not wanted
	   when running in gdb mode.*/
	char line_buffer[DEBUG_BUFFER_SIZE];

	if (prompt != NULL)
	  xsltGenericError(xsltGenericErrorContext, "%s", prompt);
	if (!fgets(line_buffer, sizeof(line_buffer) - 1, stdin)){
	  line_read = NULL;
	}else{
	  line_buffer[DEBUG_BUFFER_SIZE - 1] = 0;
	  if ((strlen(line_buffer) == 0) || (line_buffer[0] == '\n')){
	    line_read = xmlStrdup((xmlChar*)last_read);
	  }else{
	    add_history((char *) line_buffer);
	    line_read = xmlStrdup((xmlChar*)line_buffer);
	    strncpy((char*)last_read, (char*)line_read, sizeof(last_read) - 1);	  	  }
	}

      }
      return (line_read);

#else
      char line_read[DEBUG_BUFFER_SIZE];

      if (prompt != NULL)
        xsltGenericError(xsltGenericErrorContext, "%s", prompt);
	  fflush(stderr);
      if (!fgets(line_read, DEBUG_BUFFER_SIZE - 1, stdin))
        return (NULL);
      line_read[DEBUG_BUFFER_SIZE - 1] = 0;
      /* Repeat of last command when gdb mode is disabled */
      if (optionsGetIntOption(OPTIONS_GDB) == 0){
	/* if only <Enter>is pressed then try last saved command line */
	if ((strlen(line_read) == 0) || (line_read[0] == '\n')) {
	  strncpy(line_read, last_read, sizeof(line_read) - 1);
	} else {
	  strcpy(last_read, line_read);
	}
      }
      return xmlStrdup((xmlChar*)line_read);
#endif

    }

void xsldbgThreadCleanup(void);

/* thread has died so cleanup after it not called directly but via
 notifyXsldbgApp*/
void
xsldbgThreadCleanup(void)
{

}