liblouis/tools/lou_allround.c - liblouis_for_aas - Git at Google

 /* liblouis Braille Translation and Back-Translation Library

    Based on the Linux screenreader BRLTTY, copyright (C) 1999-2006 by
    The BRLTTY Team

    Copyright (C) 2004, 2005, 2006, 2009
    ViewPlus Technologies, Inc. www.viewplus.com and
    JJB Software, Inc. www.jjb-software.com

    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 3 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

 #include <config.h>
 #include <stdio.h>
 #include <string.h>
 #include <stdlib.h>
 #include "liblouis.h"
 #include "internal.h"
 #include <getopt.h>
 #include "progname.h"
 #include "unistr.h"
 #include "version-etc.h"

 static const struct option longopts[] = {
 	{ "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, 'v' },
 	{ NULL, 0, NULL, 0 },
 };

 const char version_etc_copyright[] =
 		"Copyright %s %d ViewPlus Technologies, Inc. and JJB Software, Inc.";

 #define AUTHORS "John J. Boyer"

 static void
 print_help(void) {
 	printf("\
 Usage: %s [OPTIONS]\n",
 			program_name);

 	fputs("\
 This program tests every capability of the liblouis library. It is\n\
 completely interactive. \n\n",
 			stdout);

 	fputs("\
   -h, --help          display this help and exit\n\
   -v, --version       display version information and exit\n",
 			stdout);

 	printf("\n");
 	printf("Report bugs to %s.\n", PACKAGE_BUGREPORT);

 #ifdef PACKAGE_PACKAGER_BUG_REPORTS
 	printf("Report %s bugs to: %s\n", PACKAGE_PACKAGER, PACKAGE_PACKAGER_BUG_REPORTS);
 #endif
 #ifdef PACKAGE_URL
 	printf("%s home page: <%s>\n", PACKAGE_NAME, PACKAGE_URL);
 #endif
 }

 #define BUFSIZE 256

 static char inputBuffer[BUFSIZE];
 static void *validTable = NULL;
 static int forwardOnly = 0;
 static int backOnly = 0;
 static int showPositions = 0;
 static int minimalist = 0;
 static int outputSize = BUFSIZE;
 static int showSizes = 0;
 static int enteredCursorPos = -1;
 static unsigned int mode;
 static char table[BUFSIZE];
 static formtype emphasis[BUFSIZE];
 static char spacing[BUFSIZE];
 static char enteredEmphasis[BUFSIZE];
 static char enteredSpacing[BUFSIZE];

 static int
 getInput(void) {
 	int inputLength;
 	inputBuffer[0] = 0;
 	if (!fgets(inputBuffer, sizeof(inputBuffer), stdin)) exit(EXIT_FAILURE);
 	inputLength = strlen(inputBuffer) - 1;
 	if (inputLength < 0) /* EOF on script */
 	{
 		lou_free();
 		exit(EXIT_SUCCESS);
 	}
 	inputBuffer[inputLength] = 0;
 	return inputLength;
 }

 static int
 getYN(void) {
 	printf("? y/n: ");
 	getInput();
 	if (inputBuffer[0] == 'y') return 1;
 	return 0;
 }

 static void
 paramLetters(void) {
 	printf("Press one of the letters in parentheses, then enter.\n");
 	printf("(t)able, (r)un, (m)ode, (c)ursor, (e)mphasis, (s)pacing, (h)elp,\n");
 	printf("(q)uit, (f)orward-only, (b)ack-only, show-(p)ositions m(i)nimal.\n");
 	printf("test-(l)engths.\n");
 }

 static int
 getCommands(void) {
 	paramLetters();
 	do {
 		printf("Command: ");
 		getInput();
 		switch (inputBuffer[0]) {
 		case 0:
 			break;
 		case 't':
 			do {
 				printf("Enter the name of a table: ");
 				getInput();
 				strcpy(table, inputBuffer);
 			} while ((validTable = lou_getTable(table)) == NULL);
 			break;
 		case 'r':
 			if (validTable == NULL) {
 				printf("You must enter a valid table name.\n");
 				inputBuffer[0] = 0;
 			}
 			break;
 		case 'm':
 			printf("Reset mode");
 			if (getYN()) mode = 0;
 			printf("No contractions");
 			mode |= getYN();
 			printf("Computer braille at cursor");
 			mode |= 2 * getYN();
 			printf("Dots input and output");
 			mode |= 4 * getYN();
 			printf("8-dot computer braille");
 			mode |= 8 * getYN();
 			printf("Pass1 only");
 			mode |= 16 * getYN();
 			break;
 		case 'l':
 			printf("Do you want to test input and output lengths");
 			showSizes = getYN();
 			if (!showSizes) {
 				outputSize = BUFSIZE;
 				break;
 			}
 			printf("Enter a maximum output size: ");
 			getInput();
 			outputSize = atoi(inputBuffer);
 			if (outputSize < 0 || outputSize > BUFSIZE) {
 				printf("Output size must be from 0 tu %d.\n", BUFSIZE);
 				outputSize = BUFSIZE;
 				showSizes = 0;
 			}
 			break;
 		case 'c':
 			printf("Enter a cursor position: ");
 			getInput();
 			enteredCursorPos = atoi(inputBuffer);
 			if (enteredCursorPos < -1 || enteredCursorPos > outputSize) {
 				printf("Cursor position must be from -1 to %d.\n", outputSize);
 				enteredCursorPos = -1;
 			}
 			break;
 		case 'e':
 			printf("(Enter an x to cancel emphasis.)\n");
 			printf("Enter an emphasis string: ");
 			getInput();
 			strcpy(enteredEmphasis, inputBuffer);
 			break;
 		case 's':
 			printf("(Enter an x to cancel spacing.)\n");
 			printf("Enter a spacing string: ");
 			getInput();
 			strcpy(enteredSpacing, inputBuffer);
 			break;
 		case 'h':
 			printf("Commands: action\n");
 			printf("(t)able: Enter a table name\n");
 			printf("(r)un: run the translation/back-translation loop\n");
 			printf("(m)ode: Enter a mode parameter\n");
 			printf("(c)ursor: Enter a cursor position\n");
 			printf("(e)mphasis: Enter an emphasis string\n");
 			printf("(s)pacing: Enter a spacing string\n");
 			printf("(h)elp: print this page\n");
 			printf("(q)uit: leave the program\n");
 			printf("(f)orward-only: do only forward translation\n");
 			printf("(b)ack-only: do only back-translation\n");
 			printf("show-(p)ositions: show input and output positions\n");
 			printf("m(i)nimal: test translator and back-translator with minimal "
 				   "parameters\n");
 			printf("test-(l)engths: test accuracy of returned lengths\n");
 			printf("\n");
 			paramLetters();
 			break;
 		case 'q':
 			lou_free();
 			exit(EXIT_SUCCESS);
 		case 'f':
 			printf("Do only forward translation");
 			forwardOnly = getYN();
 			break;
 		case 'b':
 			printf("Do only backward translation");
 			backOnly = getYN();
 			break;
 		case 'p':
 			printf("Show input and output positions");
 			showPositions = getYN();
 			break;
 		case 'i':
 			printf("Test translation/back-translation loop with minimal parameters");
 			minimalist = getYN();
 			break;
 		default:
 			printf("Bad choice.\n");
 			break;
 		}
 		if (forwardOnly && backOnly)
 			printf("You cannot specify both forward-only and backward-only "
 				   "translation.\n");
 	} while (inputBuffer[0] != 'r');
 	return 1;
 }

 int
 main(int argc, char **argv) {
 	char *charbuf;
 	size_t charlen;
 	widechar inbuf[BUFSIZE];
 	widechar transbuf[BUFSIZE];
 	widechar outbuf[BUFSIZE];
 	int outputPos[BUFSIZE];
 	int inputPos[BUFSIZE];
 	int inlen;
 	int translen;
 	int outlen;
 	int cursorPos = -1;
 	int realInlen = 0;
 	int k;
 	int optc;

 	set_program_name(argv[0]);

 	while ((optc = getopt_long(argc, argv, "hv", longopts, NULL)) != -1) {
 		switch (optc) {
 		/* --help and --version exit immediately, per GNU coding standards. */
 		case 'v':
 			version_etc(
 					stdout, program_name, PACKAGE_NAME, VERSION, AUTHORS, (char *)NULL);
 			exit(EXIT_SUCCESS);
 			break;
 		case 'h':
 			print_help();
 			exit(EXIT_SUCCESS);
 			break;
 		default:
 			fprintf(stderr, "Try `%s --help' for more information.\n", program_name);
 			exit(EXIT_FAILURE);
 			break;
 		}
 	}

 	if (optind < argc) {
 		/* Print error message and exit. */
 		fprintf(stderr, "%s: extra operand: %s\n", program_name, argv[optind]);
 		fprintf(stderr, "Try `%s --help' for more information.\n", program_name);
 		exit(EXIT_FAILURE);
 	}

 	validTable = NULL;
 	enteredCursorPos = -1;
 	mode = 0;
 	while (1) {
 		getCommands();
 		printf("Type something, press enter, and view the results.\n");
 		printf("A blank line returns to command entry.\n");
 		if (minimalist)
 			while (1) {
 				translen = outputSize;
 				outlen = outputSize;
 				inlen = getInput();
 				if (inlen == 0) break;
 				if (!(realInlen = _lou_extParseChars(inputBuffer, inbuf))) break;
 				inlen = realInlen;
 				if (!lou_translateString(
 							table, inbuf, &inlen, transbuf, &translen, NULL, NULL, 0))
 					break;
 				transbuf[translen] = 0;
 				printf("Translation:\n");
 #ifdef WIDECHARS_ARE_UCS4
 				charbuf = u32_to_u8(transbuf, translen, NULL, &charlen);
 #else
 				charbuf = u16_to_u8(transbuf, translen, NULL, &charlen);
 #endif
 				printf("%.*s\n", (int)charlen, charbuf);
 				free(charbuf);
 				if (showSizes)
 					printf("input length = %d; output length = %d\n", inlen, translen);
 				lou_backTranslateString(
 						table, transbuf, &translen, outbuf, &outlen, NULL, NULL, 0);
 				printf("Back-translation:\n");
 #ifdef WIDECHARS_ARE_UCS4
 				charbuf = u32_to_u8(outbuf, outlen, NULL, &charlen);
 #else
 				charbuf = u16_to_u8(outbuf, outlen, NULL, &charlen);
 #endif
 				printf("%.*s\n", (int)charlen, charbuf);
 				free(charbuf);
 				if (showSizes)
 					printf("input length = %d; output length = %d.\n", translen, outlen);
 				if (outlen == realInlen) {
 					for (k = 0; k < realInlen; k++)
 						if (inbuf[k] != outbuf[k]) break;
 					if (k == realInlen) printf("Perfect roundtrip!\n");
 				}
 			}
 		else
 			while (1) {
 				memset(emphasis, 0, sizeof(formtype) * BUFSIZE);
 				for (k = 0; k < strlen(enteredEmphasis); k++)
 					emphasis[k] = (formtype)enteredEmphasis[k] - '0';
 				emphasis[k] = 0;
 				strcpy(spacing, enteredSpacing);
 				cursorPos = enteredCursorPos;
 				inlen = getInput();
 				if (inlen == 0) break;
 				outlen = outputSize;
 				if (backOnly) {
 					if (!(translen = _lou_extParseChars(inputBuffer, transbuf))) break;
 					inlen = realInlen;
 				} else {
 					translen = outputSize;
 					if (!(realInlen = _lou_extParseChars(inputBuffer, inbuf))) break;
 					inlen = realInlen;
 					if (!lou_translate(table, inbuf, &inlen, transbuf, &translen,
 								emphasis, spacing, &outputPos[0], &inputPos[0],
 								&cursorPos, mode))
 						break;
 					transbuf[translen] = 0;
 					if (mode & dotsIO) {
 						printf("Translation dot patterns:\n");
 						printf("%s\n", _lou_showDots(transbuf, translen));
 					} else {
 						printf("Translation:\n");
 #ifdef WIDECHARS_ARE_UCS4
 						charbuf = u32_to_u8(transbuf, translen, NULL, &charlen);
 #else
 						charbuf = u16_to_u8(transbuf, translen, NULL, &charlen);
 #endif
 						printf("%.*s\n", (int)charlen, charbuf);
 						free(charbuf);
 						if (showSizes)
 							printf("input length = %d; output length = %d\n", inlen,
 									translen);
 					}
 				}
 				if (cursorPos != -1) printf("Cursor position: %d\n", cursorPos);
 				if (enteredSpacing[0]) printf("Returned spacing: %s\n", spacing);
 				if (showPositions) {
 					printf("Output positions:\n");
 					for (k = 0; k < inlen; k++) printf("%d ", outputPos[k]);
 					printf("\n");
 					printf("Input positions:\n");
 					for (k = 0; k < translen; k++) printf("%d ", inputPos[k]);
 					printf("\n");
 				}
 				if (!forwardOnly) {
 					if (!lou_backTranslate(table, transbuf, &translen, outbuf, &outlen,
 								emphasis, spacing, &outputPos[0], &inputPos[0],
 								&cursorPos, mode))
 						break;
 					printf("Back-translation:\n");
 #ifdef WIDECHARS_ARE_UCS4
 					charbuf = u32_to_u8(outbuf, outlen, NULL, &charlen);
 #else
 					charbuf = u16_to_u8(outbuf, outlen, NULL, &charlen);
 #endif
 					printf("%.*s\n", (int)charlen, charbuf);
 					free(charbuf);
 					if (showSizes)
 						printf("input length = %d; output length = %d\n", translen,
 								outlen);
 					if (cursorPos != -1) printf("Cursor position: %d\n", cursorPos);
 					if (enteredSpacing[0]) printf("Returned spacing: %s\n", spacing);
 					if (showPositions) {
 						printf("Output positions:\n");
 						for (k = 0; k < translen; k++) printf("%d ", outputPos[k]);
 						printf("\n");
 						printf("Input positions:\n");
 						for (k = 0; k < outlen; k++) printf("%d ", inputPos[k]);
 						printf("\n");
 					}
 				}
 				if (!(forwardOnly || backOnly)) {
 					if (outlen == realInlen) {
 						for (k = 0; k < realInlen; k++)
 							if (inbuf[k] != outbuf[k]) break;
 						if (k == realInlen) printf("Perfect roundtrip!\n");
 					}
 				}
 			}
 	}
 	lou_free();
 	exit(EXIT_SUCCESS);
 }
	/* liblouis Braille Translation and Back-Translation Library

	Based on the Linux screenreader BRLTTY, copyright (C) 1999-2006 by
	The BRLTTY Team

	Copyright (C) 2004, 2005, 2006, 2009
	ViewPlus Technologies, Inc. www.viewplus.com and
	JJB Software, Inc. www.jjb-software.com

	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 3 of the License, or
	(at your option) any later version.

	This program is distributed in the hope that it will be useful,
	but WITHOUT ANY WARRANTY; without even the implied warranty of
	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	GNU General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with this program. If not, see <http://www.gnu.org/licenses/>.
	*/

	#include <config.h>
	#include <stdio.h>
	#include <string.h>
	#include <stdlib.h>
	#include "liblouis.h"
	#include "internal.h"
	#include <getopt.h>
	#include "progname.h"
	#include "unistr.h"
	#include "version-etc.h"

	static const struct option longopts[] = {
	{ "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, 'v' },
	{ NULL, 0, NULL, 0 },
	};

	const char version_etc_copyright[] =
	"Copyright %s %d ViewPlus Technologies, Inc. and JJB Software, Inc.";

	#define AUTHORS "John J. Boyer"

	static void
	print_help(void) {
	printf("\
	Usage: %s [OPTIONS]\n",
	program_name);

	fputs("\
	This program tests every capability of the liblouis library. It is\n\
	completely interactive. \n\n",
	stdout);

	fputs("\
	-h, --help display this help and exit\n\
	-v, --version display version information and exit\n",
	stdout);

	printf("\n");
	printf("Report bugs to %s.\n", PACKAGE_BUGREPORT);

	#ifdef PACKAGE_PACKAGER_BUG_REPORTS
	printf("Report %s bugs to: %s\n", PACKAGE_PACKAGER, PACKAGE_PACKAGER_BUG_REPORTS);
	#endif
	#ifdef PACKAGE_URL
	printf("%s home page: <%s>\n", PACKAGE_NAME, PACKAGE_URL);
	#endif
	}

	#define BUFSIZE 256

	static char inputBuffer[BUFSIZE];
	static void *validTable = NULL;
	static int forwardOnly = 0;
	static int backOnly = 0;
	static int showPositions = 0;
	static int minimalist = 0;
	static int outputSize = BUFSIZE;
	static int showSizes = 0;
	static int enteredCursorPos = -1;
	static unsigned int mode;
	static char table[BUFSIZE];
	static formtype emphasis[BUFSIZE];
	static char spacing[BUFSIZE];
	static char enteredEmphasis[BUFSIZE];
	static char enteredSpacing[BUFSIZE];

	static int
	getInput(void) {
	int inputLength;
	inputBuffer[0] = 0;
	if (!fgets(inputBuffer, sizeof(inputBuffer), stdin)) exit(EXIT_FAILURE);
	inputLength = strlen(inputBuffer) - 1;
	if (inputLength < 0) /* EOF on script */
	{
	lou_free();
	exit(EXIT_SUCCESS);
	}
	inputBuffer[inputLength] = 0;
	return inputLength;
	}

	static int
	getYN(void) {
	printf("? y/n: ");
	getInput();
	if (inputBuffer[0] == 'y') return 1;
	return 0;
	}

	static void
	paramLetters(void) {
	printf("Press one of the letters in parentheses, then enter.\n");
	printf("(t)able, (r)un, (m)ode, (c)ursor, (e)mphasis, (s)pacing, (h)elp,\n");
	printf("(q)uit, (f)orward-only, (b)ack-only, show-(p)ositions m(i)nimal.\n");
	printf("test-(l)engths.\n");
	}

	static int
	getCommands(void) {
	paramLetters();
	do {
	printf("Command: ");
	getInput();
	switch (inputBuffer[0]) {
	case 0:
	break;
	case 't':
	do {
	printf("Enter the name of a table: ");
	getInput();
	strcpy(table, inputBuffer);
	} while ((validTable = lou_getTable(table)) == NULL);
	break;
	case 'r':
	if (validTable == NULL) {
	printf("You must enter a valid table name.\n");
	inputBuffer[0] = 0;
	}
	break;
	case 'm':
	printf("Reset mode");
	if (getYN()) mode = 0;
	printf("No contractions");
	mode \|= getYN();
	printf("Computer braille at cursor");
	mode \|= 2 * getYN();
	printf("Dots input and output");
	mode \|= 4 * getYN();
	printf("8-dot computer braille");
	mode \|= 8 * getYN();
	printf("Pass1 only");
	mode \|= 16 * getYN();
	break;
	case 'l':
	printf("Do you want to test input and output lengths");
	showSizes = getYN();
	if (!showSizes) {
	outputSize = BUFSIZE;
	break;
	}
	printf("Enter a maximum output size: ");
	getInput();
	outputSize = atoi(inputBuffer);
	if (outputSize < 0 \|\| outputSize > BUFSIZE) {
	printf("Output size must be from 0 tu %d.\n", BUFSIZE);
	outputSize = BUFSIZE;
	showSizes = 0;
	}
	break;
	case 'c':
	printf("Enter a cursor position: ");
	getInput();
	enteredCursorPos = atoi(inputBuffer);
	if (enteredCursorPos < -1 \|\| enteredCursorPos > outputSize) {
	printf("Cursor position must be from -1 to %d.\n", outputSize);
	enteredCursorPos = -1;
	}
	break;
	case 'e':
	printf("(Enter an x to cancel emphasis.)\n");
	printf("Enter an emphasis string: ");
	getInput();
	strcpy(enteredEmphasis, inputBuffer);
	break;
	case 's':
	printf("(Enter an x to cancel spacing.)\n");
	printf("Enter a spacing string: ");
	getInput();
	strcpy(enteredSpacing, inputBuffer);
	break;
	case 'h':
	printf("Commands: action\n");
	printf("(t)able: Enter a table name\n");
	printf("(r)un: run the translation/back-translation loop\n");
	printf("(m)ode: Enter a mode parameter\n");
	printf("(c)ursor: Enter a cursor position\n");
	printf("(e)mphasis: Enter an emphasis string\n");
	printf("(s)pacing: Enter a spacing string\n");
	printf("(h)elp: print this page\n");
	printf("(q)uit: leave the program\n");
	printf("(f)orward-only: do only forward translation\n");
	printf("(b)ack-only: do only back-translation\n");
	printf("show-(p)ositions: show input and output positions\n");
	printf("m(i)nimal: test translator and back-translator with minimal "
	"parameters\n");
	printf("test-(l)engths: test accuracy of returned lengths\n");
	printf("\n");
	paramLetters();
	break;
	case 'q':
	lou_free();
	exit(EXIT_SUCCESS);
	case 'f':
	printf("Do only forward translation");
	forwardOnly = getYN();
	break;
	case 'b':
	printf("Do only backward translation");
	backOnly = getYN();
	break;
	case 'p':
	printf("Show input and output positions");
	showPositions = getYN();
	break;
	case 'i':
	printf("Test translation/back-translation loop with minimal parameters");
	minimalist = getYN();
	break;
	default:
	printf("Bad choice.\n");
	break;
	}
	if (forwardOnly && backOnly)
	printf("You cannot specify both forward-only and backward-only "
	"translation.\n");
	} while (inputBuffer[0] != 'r');
	return 1;
	}

	int
	main(int argc, char **argv) {
	char *charbuf;
	size_t charlen;
	widechar inbuf[BUFSIZE];
	widechar transbuf[BUFSIZE];
	widechar outbuf[BUFSIZE];
	int outputPos[BUFSIZE];
	int inputPos[BUFSIZE];
	int inlen;
	int translen;
	int outlen;
	int cursorPos = -1;
	int realInlen = 0;
	int k;
	int optc;

	set_program_name(argv[0]);

	while ((optc = getopt_long(argc, argv, "hv", longopts, NULL)) != -1) {
	switch (optc) {
	/* --help and --version exit immediately, per GNU coding standards. */
	case 'v':
	version_etc(
	stdout, program_name, PACKAGE_NAME, VERSION, AUTHORS, (char *)NULL);
	exit(EXIT_SUCCESS);
	break;
	case 'h':
	print_help();
	exit(EXIT_SUCCESS);
	break;
	default:
	fprintf(stderr, "Try `%s --help' for more information.\n", program_name);
	exit(EXIT_FAILURE);
	break;
	}
	}

	if (optind < argc) {
	/* Print error message and exit. */
	fprintf(stderr, "%s: extra operand: %s\n", program_name, argv[optind]);
	fprintf(stderr, "Try `%s --help' for more information.\n", program_name);
	exit(EXIT_FAILURE);
	}

	validTable = NULL;
	enteredCursorPos = -1;
	mode = 0;
	while (1) {
	getCommands();
	printf("Type something, press enter, and view the results.\n");
	printf("A blank line returns to command entry.\n");
	if (minimalist)
	while (1) {
	translen = outputSize;
	outlen = outputSize;
	inlen = getInput();
	if (inlen == 0) break;
	if (!(realInlen = _lou_extParseChars(inputBuffer, inbuf))) break;
	inlen = realInlen;
	if (!lou_translateString(
	table, inbuf, &inlen, transbuf, &translen, NULL, NULL, 0))
	break;
	transbuf[translen] = 0;
	printf("Translation:\n");
	#ifdef WIDECHARS_ARE_UCS4
	charbuf = u32_to_u8(transbuf, translen, NULL, &charlen);
	#else
	charbuf = u16_to_u8(transbuf, translen, NULL, &charlen);
	#endif
	printf("%.*s\n", (int)charlen, charbuf);
	free(charbuf);
	if (showSizes)
	printf("input length = %d; output length = %d\n", inlen, translen);
	lou_backTranslateString(
	table, transbuf, &translen, outbuf, &outlen, NULL, NULL, 0);
	printf("Back-translation:\n");
	#ifdef WIDECHARS_ARE_UCS4
	charbuf = u32_to_u8(outbuf, outlen, NULL, &charlen);
	#else
	charbuf = u16_to_u8(outbuf, outlen, NULL, &charlen);
	#endif
	printf("%.*s\n", (int)charlen, charbuf);
	free(charbuf);
	if (showSizes)
	printf("input length = %d; output length = %d.\n", translen, outlen);
	if (outlen == realInlen) {
	for (k = 0; k < realInlen; k++)
	if (inbuf[k] != outbuf[k]) break;
	if (k == realInlen) printf("Perfect roundtrip!\n");
	}
	}
	else
	while (1) {
	memset(emphasis, 0, sizeof(formtype) * BUFSIZE);
	for (k = 0; k < strlen(enteredEmphasis); k++)
	emphasis[k] = (formtype)enteredEmphasis[k] - '0';
	emphasis[k] = 0;
	strcpy(spacing, enteredSpacing);
	cursorPos = enteredCursorPos;
	inlen = getInput();
	if (inlen == 0) break;
	outlen = outputSize;
	if (backOnly) {
	if (!(translen = _lou_extParseChars(inputBuffer, transbuf))) break;
	inlen = realInlen;
	} else {
	translen = outputSize;
	if (!(realInlen = _lou_extParseChars(inputBuffer, inbuf))) break;
	inlen = realInlen;
	if (!lou_translate(table, inbuf, &inlen, transbuf, &translen,
	emphasis, spacing, &outputPos[0], &inputPos[0],
	&cursorPos, mode))
	break;
	transbuf[translen] = 0;
	if (mode & dotsIO) {
	printf("Translation dot patterns:\n");
	printf("%s\n", _lou_showDots(transbuf, translen));
	} else {
	printf("Translation:\n");
	#ifdef WIDECHARS_ARE_UCS4
	charbuf = u32_to_u8(transbuf, translen, NULL, &charlen);
	#else
	charbuf = u16_to_u8(transbuf, translen, NULL, &charlen);
	#endif
	printf("%.*s\n", (int)charlen, charbuf);
	free(charbuf);
	if (showSizes)
	printf("input length = %d; output length = %d\n", inlen,
	translen);
	}
	}
	if (cursorPos != -1) printf("Cursor position: %d\n", cursorPos);
	if (enteredSpacing[0]) printf("Returned spacing: %s\n", spacing);
	if (showPositions) {
	printf("Output positions:\n");
	for (k = 0; k < inlen; k++) printf("%d ", outputPos[k]);
	printf("\n");
	printf("Input positions:\n");
	for (k = 0; k < translen; k++) printf("%d ", inputPos[k]);
	printf("\n");
	}
	if (!forwardOnly) {
	if (!lou_backTranslate(table, transbuf, &translen, outbuf, &outlen,
	emphasis, spacing, &outputPos[0], &inputPos[0],
	&cursorPos, mode))
	break;
	printf("Back-translation:\n");
	#ifdef WIDECHARS_ARE_UCS4
	charbuf = u32_to_u8(outbuf, outlen, NULL, &charlen);
	#else
	charbuf = u16_to_u8(outbuf, outlen, NULL, &charlen);
	#endif
	printf("%.*s\n", (int)charlen, charbuf);
	free(charbuf);
	if (showSizes)
	printf("input length = %d; output length = %d\n", translen,
	outlen);
	if (cursorPos != -1) printf("Cursor position: %d\n", cursorPos);
	if (enteredSpacing[0]) printf("Returned spacing: %s\n", spacing);
	if (showPositions) {
	printf("Output positions:\n");
	for (k = 0; k < translen; k++) printf("%d ", outputPos[k]);
	printf("\n");
	printf("Input positions:\n");
	for (k = 0; k < outlen; k++) printf("%d ", inputPos[k]);
	printf("\n");
	}
	}
	if (!(forwardOnly \|\| backOnly)) {
	if (outlen == realInlen) {
	for (k = 0; k < realInlen; k++)
	if (inbuf[k] != outbuf[k]) break;
	if (k == realInlen) printf("Perfect roundtrip!\n");
	}
	}
	}
	}
	lou_free();
	exit(EXIT_SUCCESS);
	}