C++ (Cpp) lg_readline Examples

Example #1

File: link-parser.c Project: ampli/link-grammar

static char * get_terminal_line(char *input_string, FILE *in, FILE *out)
{
	static char *pline;
	const char *prompt = (0 == verbosity)? "" : "linkparser> ";

#ifdef HAVE_EDITLINE
	pline = lg_readline(prompt);
#else
	fprintf(out, "%s", prompt);
	fflush(out);
#ifdef _WIN32
	if (!running_under_cygwin)
		pline = get_console_line();
	else
		pline = fgets(input_string, MAX_INPUT, in);
#else
	pline = fgets(input_string, MAX_INPUT, in);
#endif /* _WIN32 */
#endif /* HAVE_EDITLINE */

	return pline;
}

Example #2

File: link-parser.c Project: lagleki/jorne

static char *
fget_input_string(FILE *in, FILE *out, Command_Options* copts)
{
#ifdef HAVE_EDITLINE
	static char * pline = NULL;
	const char * prompt = "linkparser> ";

	if (NULL == in)
	{
		if (pline) free(pline);
		return NULL;
	}

	if (in != stdin)
	{
		static char input_string[MAX_INPUT];
		input_pending = false;
		if (fgets(input_string, MAX_INPUT, in)) return input_string;
		return NULL;
	}

	if (input_pending && pline != NULL)
	{
		input_pending = false;
		return pline;
	}
	if (copts->batch_mode || verbosity == 0 || input_pending)
	{
		prompt = "";
	}
	input_pending = false;
	if (pline) free(pline);
	pline = lg_readline(prompt);

	return pline;

#else
	static char input_string[MAX_INPUT];

	if (NULL == in) return NULL;

	if (!copts->batch_mode && verbosity > 0 && !input_pending)
	{
		fprintf(out, "linkparser> ");
		fflush(out);
	}
	input_pending = false;

#if defined(_MSC_VER) || defined(__MINGW32__)
	/* Windows console input comes using the console codepage;
	 * convert it to utf8 */
	if (stdin == in)
	{
		static char * pline = NULL;
		if (fgets(input_string, MAX_INPUT, in))
		{
			char *cr, *lf;
			if (pline) free(pline);
			pline = oem_to_utf8(input_string);

			cr = strchr(pline, '\r');
			if (cr) *cr = '\0';
			lf = strchr(pline, '\n');
			if (lf) *lf = '\0';

			return pline;
		}
	}
	else
	{
		/* It appears that MS Win always provides wide chars, even if
		 * one asked for "just a string".  So lets explicitly ask for
		 * wide chars here, and convert to multi-byte UTF-8 on the fly.
		 */
		wchar_t winput_string[MAX_INPUT];
		if (fgetws(winput_string, MAX_INPUT, in))
		{
			size_t nc = wcstombs(input_string, winput_string, MAX_INPUT);
			if (nc && (((size_t) -1) != nc))
			{
				char *cr, *lf;
				cr = strchr(input_string, '\r');
				if (cr) *cr = '\0';
				lf = strchr(input_string, '\n');
				if (lf) *lf = '\0';

				return input_string;
			}
		}
	}
#else
	/* Linux et al return UTF-8 multi-byte strings. */
	if (fgets(input_string, MAX_INPUT, in)) return input_string;
#endif
	return NULL;
#endif
}