See http://forum.sparkfun.com/viewtopic.php?p=90983#90983 for discussion;
basically, the SVF parser wrongly expects "TDI (123)" but the space is
optional and it should accept "TDI(123)" too.
In the same way, "TDI(123)TDO(456)" should work too.
Rather than update the command parsing, this just makes sure the expected
spaces are present.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
- if (cmd_pos >= svf_command_buffer_size - 1)
+ /* The parsing code currently expects a space
+ * before parentheses -- "TDI (123)". Also a
+ * space afterwards -- "TDI (123) TDO(456)".
+ * But such spaces are optional... instead of
+ * parser updates, cope with that by adding the
+ * spaces as needed.
+ *
+ * Ensure there are 3 bytes available, for:
+ * - current character
+ * - added space.
+ * - terminating NUL ('\0')
+ */
+ if ((cmd_pos + 2) >= svf_command_buffer_size)
- tmp_buffer = (char*)malloc(svf_command_buffer_size + SVFP_CMD_INC_CNT); // 1 more byte for '\0'
+ /* REVISIT use realloc(); simpler */
+ tmp_buffer = malloc(
+ svf_command_buffer_size
+ + SVFP_CMD_INC_CNT);
if (NULL == tmp_buffer)
{
LOG_ERROR("not enough memory");
return ERROR_FAIL;
}
if (svf_command_buffer_size > 0)
if (NULL == tmp_buffer)
{
LOG_ERROR("not enough memory");
return ERROR_FAIL;
}
if (svf_command_buffer_size > 0)
- {
- memcpy(tmp_buffer, svf_command_buffer, svf_command_buffer_size);
- }
+ memcpy(tmp_buffer,
+ svf_command_buffer,
+ svf_command_buffer_size);
if (svf_command_buffer != NULL)
if (svf_command_buffer != NULL)
free(svf_command_buffer);
free(svf_command_buffer);
svf_command_buffer = tmp_buffer;
svf_command_buffer_size += SVFP_CMD_INC_CNT;
tmp_buffer = NULL;
}
svf_command_buffer = tmp_buffer;
svf_command_buffer_size += SVFP_CMD_INC_CNT;
tmp_buffer = NULL;
}
+
+ /* insert a space before '(' */
+ if ('(' == ch)
+ svf_command_buffer[cmd_pos++] = ' ';
+
svf_command_buffer[cmd_pos++] = (char)toupper(ch);
svf_command_buffer[cmd_pos++] = (char)toupper(ch);
+
+ /* insert a space after ')' */
+ if (')' == ch)
+ svf_command_buffer[cmd_pos++] = ' ';
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