1397 lines
46 KiB
C++
1397 lines
46 KiB
C++
/*****************************************************************************
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*
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* Copyright (C) 1999-2004, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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******************************************************************************/
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/*
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* uconv(1): an iconv(1)-like converter using ICU.
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*
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* Original code by Jonas Utterström <jonas.utterstrom@vittran.norrnod.se>
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* contributed in 1999.
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*
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* Conversion to the C conversion API and many improvements by
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* Yves Arrouye <yves@realnames.com>, current maintainer.
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*
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* Markus Scherer maintainer from 2003.
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* See source code repository history for changes.
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*/
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#include <unicode/utypes.h>
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#include <unicode/ucnv.h>
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#include <unicode/uenum.h>
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#include <unicode/unistr.h>
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#include <unicode/translit.h>
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#include <unicode/uset.h>
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#include <unicode/uclean.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include "cmemory.h"
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#include "cstring.h"
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#include "ustrfmt.h"
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#include "unicode/uwmsg.h"
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#if (defined(WIN32) || defined(U_CYGWIN)) && !defined(__STRICT_ANSI__)
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#include <io.h>
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#include <fcntl.h>
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#define USE_FILENO_BINARY_MODE 1
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#endif
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#ifdef UCONVMSG_LINK
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/* below from the README */
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#include "unicode/utypes.h"
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#include "unicode/udata.h"
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U_CFUNC char uconvmsg_dat[];
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#endif
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#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
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#define DEFAULT_BUFSZ 4096
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#define UCONVMSG "uconvmsg"
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static UResourceBundle *gBundle = 0; /* Bundle containing messages. */
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/*
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* Initialize the message bundle so that message strings can be fetched
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* by u_wmsg().
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*
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*/
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static void initMsg(const char *pname) {
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static int ps = 0;
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if (!ps) {
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char dataPath[2048]; /* XXX Sloppy: should be PATH_MAX. */
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UErrorCode err = U_ZERO_ERROR;
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ps = 1;
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/* Set up our static data - if any */
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#ifdef UCONVMSG_LINK
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udata_setAppData(UCONVMSG, (const void*) uconvmsg_dat, &err);
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if (U_FAILURE(err)) {
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fprintf(stderr, "%s: warning, problem installing our static resource bundle data uconvmsg: %s - trying anyways.\n",
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pname, u_errorName(err));
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err = U_ZERO_ERROR; /* It may still fail */
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}
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#endif
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/* Get messages. */
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gBundle = u_wmsg_setPath(UCONVMSG, &err);
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if (U_FAILURE(err)) {
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fprintf(stderr,
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"%s: warning: couldn't open bundle %s: %s\n",
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pname, UCONVMSG, u_errorName(err));
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#ifdef UCONVMSG_LINK
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fprintf(stderr,
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"%s: setAppData was called, internal data %s failed to load\n",
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pname, UCONVMSG);
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#endif
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err = U_ZERO_ERROR;
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/* that was try #1, try again with a path */
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uprv_strcpy(dataPath, u_getDataDirectory());
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uprv_strcat(dataPath, U_FILE_SEP_STRING);
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uprv_strcat(dataPath, UCONVMSG);
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gBundle = u_wmsg_setPath(dataPath, &err);
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if (U_FAILURE(err)) {
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fprintf(stderr,
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"%s: warning: still couldn't open bundle %s: %s\n",
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pname, dataPath, u_errorName(err));
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fprintf(stderr, "%s: warning: messages will not be displayed\n", pname);
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}
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}
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}
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}
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/* Mapping of callback names to the callbacks passed to the converter
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API. */
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static struct callback_ent {
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const char *name;
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UConverterFromUCallback fromu;
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const void *fromuctxt;
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UConverterToUCallback tou;
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const void *touctxt;
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} transcode_callbacks[] = {
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{ "substitute",
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UCNV_FROM_U_CALLBACK_SUBSTITUTE, 0,
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UCNV_TO_U_CALLBACK_SUBSTITUTE, 0 },
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{ "skip",
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UCNV_FROM_U_CALLBACK_SKIP, 0,
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UCNV_TO_U_CALLBACK_SKIP, 0 },
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{ "stop",
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UCNV_FROM_U_CALLBACK_STOP, 0,
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UCNV_TO_U_CALLBACK_STOP, 0 },
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{ "escape",
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UCNV_FROM_U_CALLBACK_ESCAPE, 0,
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UCNV_TO_U_CALLBACK_ESCAPE, 0},
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{ "escape-icu",
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UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_ICU,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_ICU },
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{ "escape-java",
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UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_JAVA,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_JAVA },
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{ "escape-c",
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UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_C,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_C },
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{ "escape-xml",
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UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_XML_HEX,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_XML_HEX },
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{ "escape-xml-hex",
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UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_XML_HEX,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_XML_HEX },
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{ "escape-xml-dec",
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UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_XML_DEC,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_XML_DEC },
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{ "escape-unicode", UCNV_FROM_U_CALLBACK_ESCAPE, UCNV_ESCAPE_UNICODE,
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UCNV_TO_U_CALLBACK_ESCAPE, UCNV_ESCAPE_UNICODE }
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};
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/* Return a pointer to a callback record given its name. */
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static const struct callback_ent *findCallback(const char *name) {
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int i, count =
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sizeof(transcode_callbacks) / sizeof(*transcode_callbacks);
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/* We'll do a linear search, there aren't many of them and bsearch()
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may not be that portable. */
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for (i = 0; i < count; ++i) {
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if (!uprv_stricmp(name, transcode_callbacks[i].name)) {
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return &transcode_callbacks[i];
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}
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}
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return 0;
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}
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/* Print converter information. If lookfor is set, only that converter will
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be printed, otherwise all converters will be printed. If canon is non
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zero, tags and aliases for each converter are printed too, in the format
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expected for convrters.txt(5). */
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static int printConverters(const char *pname, const char *lookfor,
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UBool canon)
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{
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UErrorCode err = U_ZERO_ERROR;
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int32_t num;
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uint16_t num_stds;
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const char **stds;
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/* If there is a specified name, just handle that now. */
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if (lookfor) {
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if (!canon) {
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printf("%s\n", lookfor);
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return 0;
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} else {
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/* Because we are printing a canonical name, we need the
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true converter name. We've done that already except for
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the default name (because we want to print the exact
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name one would get when calling ucnv_getDefaultName()
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in non-canon mode). But since we do not know at this
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point if we have the default name or something else, we
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need to normalize again to the canonical converter
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name. */
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const char *truename = ucnv_getAlias(lookfor, 0, &err);
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if (U_SUCCESS(err)) {
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lookfor = truename;
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} else {
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err = U_ZERO_ERROR;
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}
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}
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}
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/* Print converter names. We come here for one of two reasons: we
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are printing all the names (lookfor was null), or we have a
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single converter to print but in canon mode, hence we need to
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get to it in order to print everything. */
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num = ucnv_countAvailable();
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if (num <= 0) {
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initMsg(pname);
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u_wmsg(stderr, "cantGetNames");
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return -1;
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}
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if (lookfor) {
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num = 1; /* We know where we want to be. */
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}
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num_stds = ucnv_countStandards();
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stds = (const char **) uprv_malloc(num_stds * sizeof(*stds));
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if (!stds) {
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u_wmsg(stderr, "cantGetTag", u_wmsg_errorName(U_MEMORY_ALLOCATION_ERROR));
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return -1;
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} else {
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uint16_t s;
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if (canon) {
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printf("{ ");
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}
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for (s = 0; s < num_stds; ++s) {
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stds[s] = ucnv_getStandard(s, &err);
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if (canon) {
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printf("%s ", stds[s]);
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}
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if (U_FAILURE(err)) {
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u_wmsg(stderr, "cantGetTag", u_wmsg_errorName(err));
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return -1;
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}
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}
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if (canon) {
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puts("}");
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}
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}
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for (int32_t i = 0; i < num; i++) {
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const char *name;
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uint16_t num_aliases;
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/* Set the name either to what we are looking for, or
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to the current converter name. */
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if (lookfor) {
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name = lookfor;
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} else {
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name = ucnv_getAvailableName(i);
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}
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/* Get all the aliases associated to the name. */
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err = U_ZERO_ERROR;
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num_aliases = ucnv_countAliases(name, &err);
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if (U_FAILURE(err)) {
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printf("%s", name);
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UnicodeString str(name, "");
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putchar('\t');
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u_wmsg(stderr, "cantGetAliases", str.getTerminatedBuffer(),
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u_wmsg_errorName(err));
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return -1;
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} else {
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uint16_t a, s, t;
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/* Write all the aliases and their tags. */
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for (a = 0; a < num_aliases; ++a) {
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const char *alias = ucnv_getAlias(name, a, &err);
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if (U_FAILURE(err)) {
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UnicodeString str(name, "");
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putchar('\t');
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u_wmsg(stderr, "cantGetAliases", str.getTerminatedBuffer(),
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u_wmsg_errorName(err));
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return -1;
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}
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/* Print the current alias so that it looks right. */
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printf("%s%s%s", (canon ? (a == 0? "" : "\t" ) : "") ,
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alias,
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(canon ? "" : " "));
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/* Look (slowly, linear searching) for a tag. */
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if (canon) {
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/* -1 to skip the last standard */
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for (s = t = 0; s < num_stds-1; ++s) {
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UEnumeration *nameEnum = ucnv_openStandardNames(name, stds[s], &err);
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if (U_SUCCESS(err)) {
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/* List the standard tags */
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const char *standardName;
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UBool isFirst = TRUE;
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UErrorCode enumError = U_ZERO_ERROR;
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while ((standardName = uenum_next(nameEnum, NULL, &enumError))) {
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/* See if this alias is supported by this standard. */
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if (!strcmp(standardName, alias)) {
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if (!t) {
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printf(" {");
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t = 1;
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}
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/* Print a * after the default standard name */
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printf(" %s%s", stds[s], (isFirst ? "*" : ""));
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}
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isFirst = FALSE;
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}
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}
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}
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if (t) {
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printf(" }");
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}
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}
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/* Terminate this entry. */
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if (canon) {
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puts("");
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}
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/* Move on. */
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}
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/* Terminate this entry. */
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if (!canon) {
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puts("");
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}
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}
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}
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/* Free temporary data. */
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uprv_free(stds);
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/* Success. */
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return 0;
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}
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/* Print all available transliterators. If canon is non zero, print
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one transliterator per line. */
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static int printTransliterators(UBool canon)
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{
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#if UCONFIG_NO_TRANSLITERATION
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printf("no transliterators available because of UCONFIG_NO_TRANSLITERATION, see uconfig.h\n");
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return 1;
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#else
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int32_t numtrans = utrans_countAvailableIDs(), i;
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int buflen = 512;
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char *buf = (char *) uprv_malloc(buflen);
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char staticbuf[512];
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char sepchar = canon ? '\n' : ' ';
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if (!buf) {
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buf = staticbuf;
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buflen = sizeof(staticbuf);
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}
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for (i = 0; i < numtrans; ++i) {
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int32_t len = utrans_getAvailableID(i, buf, buflen);
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if (len >= buflen - 1) {
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if (buf != staticbuf) {
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buflen <<= 1;
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if (buflen < len) {
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buflen = len + 64;
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}
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buf = (char *) uprv_realloc(buf, buflen);
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if (!buf) {
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buf = staticbuf;
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buflen = sizeof(staticbuf);
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}
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}
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utrans_getAvailableID(i, buf, buflen);
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if (len >= buflen) {
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uprv_strcpy(buf + buflen - 4, "..."); /* Truncate the name. */
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}
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}
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printf("%s", buf);
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if (i < numtrans - 1) {
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putchar(sepchar);
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}
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}
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/* Add a terminating newline if needed. */
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if (sepchar != '\n') {
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putchar('\n');
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}
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/* Free temporary data. */
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if (buf != staticbuf) {
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uprv_free(buf);
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}
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/* Success. */
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return 0;
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#endif
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}
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enum {
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uSP = 0x20, // space
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uCR = 0xd, // carriage return
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uLF = 0xa, // line feed
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uNL = 0x85, // newline
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uLS = 0x2028, // line separator
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uPS = 0x2029, // paragraph separator
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uSig = 0xfeff // signature/BOM character
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};
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static inline int32_t
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getChunkLimit(const UnicodeString &prev, const UnicodeString &s) {
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// find one of
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// CR, LF, CRLF, NL, LS, PS
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// for paragraph ends (see UAX #13/Unicode 4)
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// and include it in the chunk
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// all of these characters are on the BMP
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// do not include FF or VT in case they are part of a paragraph
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// (important for bidi contexts)
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static const UChar paraEnds[] = {
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0xd, 0xa, 0x85, 0x2028, 0x2029
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};
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enum {
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iCR, iLF, iNL, iLS, iPS, iCount
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};
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// first, see if there is a CRLF split between prev and s
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if (prev.endsWith(paraEnds + iCR, 1)) {
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if (s.startsWith(paraEnds + iLF, 1)) {
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return 1; // split CRLF, include the LF
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} else if (!s.isEmpty()) {
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return 0; // complete the last chunk
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} else {
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return -1; // wait for actual further contents to arrive
|
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}
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}
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const UChar *u = s.getBuffer(), *limit = u + s.length();
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UChar c;
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while (u < limit) {
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c = *u++;
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if (
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((c < uSP) && (c == uCR || c == uLF)) ||
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(c == uNL) ||
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((c & uLS) == uLS)
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) {
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if (c == uCR) {
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// check for CRLF
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if (u == limit) {
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return -1; // LF may be in the next chunk
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} else if (*u == uLF) {
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++u; // include the LF in this chunk
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}
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}
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return (int32_t)(u - s.getBuffer());
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}
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}
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|
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return -1; // continue collecting the chunk
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}
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|
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enum {
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CNV_NO_FEFF, // cannot convert the U+FEFF Unicode signature character (BOM)
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CNV_WITH_FEFF, // can convert the U+FEFF signature character
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CNV_ADDS_FEFF // automatically adds/detects the U+FEFF signature character
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};
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|
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static inline UChar
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nibbleToHex(uint8_t n) {
|
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n &= 0xf;
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return
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n <= 9 ?
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(UChar)(0x30 + n) :
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(UChar)((0x61 - 10) + n);
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}
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|
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// check the converter's Unicode signature properties;
|
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// the fromUnicode side of the converter must be in its initial state
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// and will be reset again if it was used
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static int32_t
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cnvSigType(UConverter *cnv) {
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UErrorCode err;
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int32_t result;
|
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|
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// test if the output charset can convert U+FEFF
|
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USet *set = uset_open(1, 0);
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err = U_ZERO_ERROR;
|
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ucnv_getUnicodeSet(cnv, set, UCNV_ROUNDTRIP_SET, &err);
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if (U_SUCCESS(err) && uset_contains(set, uSig)) {
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result = CNV_WITH_FEFF;
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} else {
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result = CNV_NO_FEFF; // an error occurred or U+FEFF cannot be converted
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}
|
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uset_close(set);
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|
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if (result == CNV_WITH_FEFF) {
|
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// test if the output charset emits a signature anyway
|
|
const UChar a[1] = { 0x61 }; // "a"
|
|
const UChar *in;
|
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|
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char buffer[20];
|
|
char *out;
|
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|
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in = a;
|
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out = buffer;
|
|
err = U_ZERO_ERROR;
|
|
ucnv_fromUnicode(cnv,
|
|
&out, buffer + sizeof(buffer),
|
|
&in, a + 1,
|
|
NULL, TRUE, &err);
|
|
ucnv_resetFromUnicode(cnv);
|
|
|
|
if (NULL != ucnv_detectUnicodeSignature(buffer, (int32_t)(out - buffer), NULL, &err) &&
|
|
U_SUCCESS(err)
|
|
) {
|
|
result = CNV_ADDS_FEFF;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
class ConvertFile {
|
|
public:
|
|
ConvertFile() :
|
|
buf(NULL), outbuf(NULL), fromoffsets(NULL),
|
|
bufsz(0), signature(0) {}
|
|
|
|
void
|
|
setBufferSize(size_t bufferSize) {
|
|
bufsz = bufferSize;
|
|
|
|
buf = new char[2 * bufsz];
|
|
outbuf = buf + bufsz;
|
|
|
|
// +1 for an added U+FEFF in the intermediate Unicode buffer
|
|
fromoffsets = new int32_t[bufsz + 1];
|
|
}
|
|
|
|
~ConvertFile() {
|
|
delete [] buf;
|
|
delete [] fromoffsets;
|
|
}
|
|
|
|
UBool convertFile(const char *pname,
|
|
const char *fromcpage,
|
|
UConverterToUCallback toucallback,
|
|
const void *touctxt,
|
|
const char *tocpage,
|
|
UConverterFromUCallback fromucallback,
|
|
const void *fromuctxt,
|
|
UBool fallback,
|
|
const char *translit,
|
|
const char *infilestr,
|
|
FILE * outfile, int verbose);
|
|
private:
|
|
friend int main(int argc, char **argv);
|
|
|
|
char *buf, *outbuf;
|
|
int32_t *fromoffsets;
|
|
|
|
size_t bufsz;
|
|
int8_t signature; // add (1) or remove (-1) a U+FEFF Unicode signature character
|
|
};
|
|
|
|
// Convert a file from one encoding to another
|
|
UBool
|
|
ConvertFile::convertFile(const char *pname,
|
|
const char *fromcpage,
|
|
UConverterToUCallback toucallback,
|
|
const void *touctxt,
|
|
const char *tocpage,
|
|
UConverterFromUCallback fromucallback,
|
|
const void *fromuctxt,
|
|
UBool fallback,
|
|
const char *translit,
|
|
const char *infilestr,
|
|
FILE * outfile, int verbose)
|
|
{
|
|
FILE *infile;
|
|
UBool ret = TRUE;
|
|
UConverter *convfrom = 0;
|
|
UConverter *convto = 0;
|
|
UErrorCode err = U_ZERO_ERROR;
|
|
UBool flush;
|
|
const char *cbufp, *prevbufp;
|
|
char *bufp;
|
|
|
|
uint32_t infoffset = 0, outfoffset = 0; /* Where we are in the file, for error reporting. */
|
|
|
|
const UChar *unibuf, *unibufbp;
|
|
UChar *unibufp;
|
|
|
|
size_t rd, wr;
|
|
|
|
#if !UCONFIG_NO_TRANSLITERATION
|
|
Transliterator *t = 0; // Transliterator acting on Unicode data.
|
|
UnicodeString chunk; // One chunk of the text being collected for transformation.
|
|
#endif
|
|
UnicodeString u; // String to do the transliteration.
|
|
int32_t ulen;
|
|
|
|
// use conversion offsets for error messages
|
|
// unless a transliterator is used -
|
|
// a text transformation will reorder characters in unpredictable ways
|
|
UBool useOffsets = TRUE;
|
|
|
|
// Open the correct input file or connect to stdin for reading input
|
|
|
|
if (infilestr != 0 && strcmp(infilestr, "-")) {
|
|
infile = fopen(infilestr, "rb");
|
|
if (infile == 0) {
|
|
UnicodeString str1(infilestr, "");
|
|
str1.append((UChar32) 0);
|
|
UnicodeString str2(strerror(errno), "");
|
|
str2.append((UChar32) 0);
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantOpenInputF", str1.getBuffer(), str2.getBuffer());
|
|
return FALSE;
|
|
}
|
|
} else {
|
|
infilestr = "-";
|
|
infile = stdin;
|
|
#ifdef USE_FILENO_BINARY_MODE
|
|
if (setmode(fileno(stdin), O_BINARY) == -1) {
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantSetInBinMode");
|
|
return FALSE;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (verbose) {
|
|
fprintf(stderr, "%s:\n", infilestr);
|
|
}
|
|
|
|
#if !UCONFIG_NO_TRANSLITERATION
|
|
// Create transliterator as needed.
|
|
|
|
if (translit != NULL && *translit) {
|
|
UParseError parse;
|
|
UnicodeString str(translit), pestr;
|
|
|
|
/* Create from rules or by ID as needed. */
|
|
|
|
parse.line = -1;
|
|
|
|
if (uprv_strchr(translit, ':') || uprv_strchr(translit, '>') || uprv_strchr(translit, '<') || uprv_strchr(translit, '>')) {
|
|
t = Transliterator::createFromRules("Uconv", str, UTRANS_FORWARD, parse, err);
|
|
} else {
|
|
t = Transliterator::createInstance(translit, UTRANS_FORWARD, err);
|
|
}
|
|
|
|
if (U_FAILURE(err)) {
|
|
str.append((UChar32) 0);
|
|
initMsg(pname);
|
|
|
|
if (parse.line >= 0) {
|
|
UChar linebuf[20], offsetbuf[20];
|
|
uprv_itou(linebuf, 20, parse.line, 10, 0);
|
|
uprv_itou(offsetbuf, 20, parse.offset, 10, 0);
|
|
u_wmsg(stderr, "cantCreateTranslitParseErr", str.getTerminatedBuffer(),
|
|
u_wmsg_errorName(err), linebuf, offsetbuf);
|
|
} else {
|
|
u_wmsg(stderr, "cantCreateTranslit", str.getTerminatedBuffer(),
|
|
u_wmsg_errorName(err));
|
|
}
|
|
|
|
if (t) {
|
|
delete t;
|
|
t = 0;
|
|
}
|
|
goto error_exit;
|
|
}
|
|
|
|
useOffsets = FALSE;
|
|
}
|
|
#endif
|
|
|
|
// Create codepage converter. If the codepage or its aliases weren't
|
|
// available, it returns NULL and a failure code. We also set the
|
|
// callbacks, and return errors in the same way.
|
|
|
|
convfrom = ucnv_open(fromcpage, &err);
|
|
if (U_FAILURE(err)) {
|
|
UnicodeString str(fromcpage, "");
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantOpenFromCodeset", str.getTerminatedBuffer(),
|
|
u_wmsg_errorName(err));
|
|
goto error_exit;
|
|
}
|
|
ucnv_setToUCallBack(convfrom, toucallback, touctxt, 0, 0, &err);
|
|
if (U_FAILURE(err)) {
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantSetCallback", u_wmsg_errorName(err));
|
|
goto error_exit;
|
|
}
|
|
|
|
convto = ucnv_open(tocpage, &err);
|
|
if (U_FAILURE(err)) {
|
|
UnicodeString str(tocpage, "");
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantOpenToCodeset", str.getTerminatedBuffer(),
|
|
u_wmsg_errorName(err));
|
|
goto error_exit;
|
|
}
|
|
ucnv_setFromUCallBack(convto, fromucallback, fromuctxt, 0, 0, &err);
|
|
if (U_FAILURE(err)) {
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantSetCallback", u_wmsg_errorName(err));
|
|
goto error_exit;
|
|
}
|
|
ucnv_setFallback(convto, fallback);
|
|
|
|
UBool willexit, fromSawEndOfBytes, toSawEndOfUnicode;
|
|
int8_t sig;
|
|
|
|
// OK, we can convert now.
|
|
sig = signature;
|
|
rd = 0;
|
|
|
|
do {
|
|
willexit = FALSE;
|
|
|
|
// input file offset at the beginning of the next buffer
|
|
infoffset += rd;
|
|
|
|
rd = fread(buf, 1, bufsz, infile);
|
|
if (ferror(infile) != 0) {
|
|
UnicodeString str(strerror(errno));
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantRead", str.getTerminatedBuffer());
|
|
goto error_exit;
|
|
}
|
|
|
|
// Convert the read buffer into the new encoding via Unicode.
|
|
// After the call 'unibufp' will be placed behind the last
|
|
// character that was converted in the 'unibuf'.
|
|
// Also the 'cbufp' is positioned behind the last converted
|
|
// character.
|
|
// At the last conversion in the file, flush should be set to
|
|
// true so that we get all characters converted.
|
|
//
|
|
// The converter must be flushed at the end of conversion so
|
|
// that characters on hold also will be written.
|
|
|
|
cbufp = buf;
|
|
flush = (UBool)(rd != bufsz);
|
|
|
|
// convert until the input is consumed
|
|
do {
|
|
// remember the start of the current byte-to-Unicode conversion
|
|
prevbufp = cbufp;
|
|
|
|
unibuf = unibufp = u.getBuffer((int32_t)bufsz);
|
|
|
|
// Use bufsz instead of u.getCapacity() for the targetLimit
|
|
// so that we don't overflow fromoffsets[].
|
|
ucnv_toUnicode(convfrom, &unibufp, unibuf + bufsz, &cbufp,
|
|
buf + rd, useOffsets ? fromoffsets : NULL, flush, &err);
|
|
|
|
ulen = (int32_t)(unibufp - unibuf);
|
|
u.releaseBuffer(ulen);
|
|
|
|
// fromSawEndOfBytes indicates that ucnv_toUnicode() is done
|
|
// converting all of the input bytes.
|
|
// It works like this because ucnv_toUnicode() returns only under the
|
|
// following conditions:
|
|
// - an error occurred during conversion (an error code is set)
|
|
// - the target buffer is filled (the error code indicates an overflow)
|
|
// - the source is consumed
|
|
// That is, if the error code does not indicate a failure,
|
|
// not even an overflow, then the source must be consumed entirely.
|
|
fromSawEndOfBytes = (UBool)U_SUCCESS(err);
|
|
|
|
if (err == U_BUFFER_OVERFLOW_ERROR) {
|
|
err = U_ZERO_ERROR;
|
|
} else if (U_FAILURE(err)) {
|
|
char pos[32], errorBytes[32];
|
|
int8_t i, length, errorLength;
|
|
|
|
UErrorCode localError = U_ZERO_ERROR;
|
|
errorLength = (int8_t)sizeof(errorBytes);
|
|
ucnv_getInvalidChars(convfrom, errorBytes, &errorLength, &localError);
|
|
if (U_FAILURE(localError) || errorLength == 0) {
|
|
errorLength = 1;
|
|
}
|
|
|
|
// print the input file offset of the start of the error bytes:
|
|
// input file offset of the current byte buffer +
|
|
// length of the just consumed bytes -
|
|
// length of the error bytes
|
|
length =
|
|
(int8_t)sprintf(pos, "%d",
|
|
(int)(infoffset + (cbufp - buf) - errorLength));
|
|
|
|
// output the bytes that caused the error
|
|
UnicodeString str;
|
|
for (i = 0; i < errorLength; ++i) {
|
|
if (i > 0) {
|
|
str.append((UChar)uSP);
|
|
}
|
|
str.append(nibbleToHex((uint8_t)errorBytes[i] >> 4));
|
|
str.append(nibbleToHex((uint8_t)errorBytes[i]));
|
|
}
|
|
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "problemCvtToU",
|
|
UnicodeString(pos, length, "").getTerminatedBuffer(),
|
|
str.getTerminatedBuffer(),
|
|
u_wmsg_errorName(err));
|
|
|
|
willexit = TRUE;
|
|
err = U_ZERO_ERROR; /* reset the error for the rest of the conversion. */
|
|
}
|
|
|
|
// Replaced a check for whether the input was consumed by
|
|
// looping until it is; message key "premEndInput" now obsolete.
|
|
|
|
if (ulen == 0) {
|
|
continue;
|
|
}
|
|
|
|
// remove a U+FEFF Unicode signature character if requested
|
|
if (sig < 0) {
|
|
if (u.charAt(0) == uSig) {
|
|
u.remove(0, 1);
|
|
|
|
// account for the removed UChar and offset
|
|
--ulen;
|
|
|
|
if (useOffsets) {
|
|
// remove an offset from fromoffsets[] as well
|
|
// to keep the array parallel with the UChars
|
|
memmove(fromoffsets, fromoffsets + 1, ulen * 4);
|
|
}
|
|
|
|
}
|
|
sig = 0;
|
|
}
|
|
|
|
#if !UCONFIG_NO_TRANSLITERATION
|
|
// Transliterate/transform if needed.
|
|
|
|
// For transformation, we use chunking code -
|
|
// collect Unicode input until, for example, an end-of-line,
|
|
// then transform and output-convert that and continue collecting.
|
|
// This makes the transformation result independent of the buffer size
|
|
// while avoiding the slower keyboard mode.
|
|
// The end-of-chunk characters are completely included in the
|
|
// transformed string in case they are to be transformed themselves.
|
|
if (t != NULL) {
|
|
UnicodeString out;
|
|
int32_t chunkLimit;
|
|
|
|
do {
|
|
chunkLimit = getChunkLimit(chunk, u);
|
|
if (chunkLimit < 0 && flush && fromSawEndOfBytes) {
|
|
// use all of the rest at the end of the text
|
|
chunkLimit = u.length();
|
|
}
|
|
if (chunkLimit >= 0) {
|
|
// complete the chunk and transform it
|
|
chunk.append(u, 0, chunkLimit);
|
|
u.remove(0, chunkLimit);
|
|
t->transliterate(chunk);
|
|
|
|
// append the transformation result to the result and empty the chunk
|
|
out.append(chunk);
|
|
chunk.remove();
|
|
} else {
|
|
// continue collecting the chunk
|
|
chunk.append(u);
|
|
break;
|
|
}
|
|
} while (!u.isEmpty());
|
|
|
|
u = out;
|
|
ulen = u.length();
|
|
}
|
|
#endif
|
|
|
|
// add a U+FEFF Unicode signature character if requested
|
|
// and possible/necessary
|
|
if (sig > 0) {
|
|
if (u.charAt(0) != uSig && cnvSigType(convto) == CNV_WITH_FEFF) {
|
|
u.insert(0, (UChar)uSig);
|
|
|
|
if (useOffsets) {
|
|
// insert a pseudo-offset into fromoffsets[] as well
|
|
// to keep the array parallel with the UChars
|
|
memmove(fromoffsets + 1, fromoffsets, ulen * 4);
|
|
fromoffsets[0] = -1;
|
|
}
|
|
|
|
// account for the additional UChar and offset
|
|
++ulen;
|
|
}
|
|
sig = 0;
|
|
}
|
|
|
|
// Convert the Unicode buffer into the destination codepage
|
|
// Again 'bufp' will be placed behind the last converted character
|
|
// And 'unibufp' will be placed behind the last converted unicode character
|
|
// At the last conversion flush should be set to true to ensure that
|
|
// all characters left get converted
|
|
|
|
unibuf = unibufbp = u.getBuffer();
|
|
|
|
do {
|
|
bufp = outbuf;
|
|
|
|
// Use fromSawEndOfBytes in addition to the flush flag -
|
|
// it indicates whether the intermediate Unicode string
|
|
// contains the very last UChars for the very last input bytes.
|
|
ucnv_fromUnicode(convto, &bufp, outbuf + bufsz,
|
|
&unibufbp,
|
|
unibuf + ulen,
|
|
NULL, (UBool)(flush && fromSawEndOfBytes), &err);
|
|
|
|
// toSawEndOfUnicode indicates that ucnv_fromUnicode() is done
|
|
// converting all of the intermediate UChars.
|
|
// See comment for fromSawEndOfBytes.
|
|
toSawEndOfUnicode = (UBool)U_SUCCESS(err);
|
|
|
|
if (err == U_BUFFER_OVERFLOW_ERROR) {
|
|
err = U_ZERO_ERROR;
|
|
} else if (U_FAILURE(err)) {
|
|
UChar errorUChars[4];
|
|
const char *errtag;
|
|
char pos[32];
|
|
UChar32 c;
|
|
int8_t i, length, errorLength;
|
|
|
|
UErrorCode localError = U_ZERO_ERROR;
|
|
errorLength = (int8_t)LENGTHOF(errorUChars);
|
|
ucnv_getInvalidUChars(convto, errorUChars, &errorLength, &localError);
|
|
if (U_FAILURE(localError) || errorLength == 0) {
|
|
// need at least 1 so that we don't access beyond the length of fromoffsets[]
|
|
errorLength = 1;
|
|
}
|
|
|
|
int32_t ferroffset;
|
|
|
|
if (useOffsets) {
|
|
// Unicode buffer offset of the start of the error UChars
|
|
ferroffset = (int32_t)((unibufbp - unibuf) - errorLength);
|
|
if (ferroffset < 0) {
|
|
// approximation - the character started in the previous Unicode buffer
|
|
ferroffset = 0;
|
|
}
|
|
|
|
// get the corresponding byte offset out of fromoffsets[]
|
|
// go back if the offset is not known for some of the UChars
|
|
int32_t fromoffset;
|
|
do {
|
|
fromoffset = fromoffsets[ferroffset];
|
|
} while (fromoffset < 0 && --ferroffset >= 0);
|
|
|
|
// total input file offset =
|
|
// input file offset of the current byte buffer +
|
|
// byte buffer offset of where the current Unicode buffer is converted from +
|
|
// fromoffsets[Unicode offset]
|
|
ferroffset = infoffset + (prevbufp - buf) + fromoffset;
|
|
errtag = "problemCvtFromU";
|
|
} else {
|
|
// Do not use fromoffsets if (t != NULL) because the Unicode text may
|
|
// be different from what the offsets refer to.
|
|
|
|
// output file offset
|
|
ferroffset = (int32_t)(outfoffset + (bufp - outbuf));
|
|
errtag = "problemCvtFromUOut";
|
|
}
|
|
|
|
length = (int8_t)sprintf(pos, "%u", (int)ferroffset);
|
|
|
|
// output the code points that caused the error
|
|
UnicodeString str;
|
|
for (i = 0; i < errorLength;) {
|
|
if (i > 0) {
|
|
str.append((UChar)uSP);
|
|
}
|
|
U16_NEXT(errorUChars, i, errorLength, c);
|
|
if (c >= 0x100000) {
|
|
str.append(nibbleToHex((uint8_t)(c >> 20)));
|
|
}
|
|
if (c >= 0x10000) {
|
|
str.append(nibbleToHex((uint8_t)(c >> 16)));
|
|
}
|
|
str.append(nibbleToHex((uint8_t)(c >> 12)));
|
|
str.append(nibbleToHex((uint8_t)(c >> 8)));
|
|
str.append(nibbleToHex((uint8_t)(c >> 4)));
|
|
str.append(nibbleToHex((uint8_t)c));
|
|
}
|
|
|
|
initMsg(pname);
|
|
u_wmsg(stderr, errtag,
|
|
UnicodeString(pos, length, "").getTerminatedBuffer(),
|
|
str.getTerminatedBuffer(),
|
|
u_wmsg_errorName(err));
|
|
u_wmsg(stderr, "errorUnicode", str.getTerminatedBuffer());
|
|
|
|
willexit = TRUE;
|
|
err = U_ZERO_ERROR; /* reset the error for the rest of the conversion. */
|
|
}
|
|
|
|
// Replaced a check for whether the intermediate Unicode characters were all consumed by
|
|
// looping until they are; message key "premEnd" now obsolete.
|
|
|
|
// Finally, write the converted buffer to the output file
|
|
size_t outlen = (size_t) (bufp - outbuf);
|
|
outfoffset += (int32_t)(wr = fwrite(outbuf, 1, outlen, outfile));
|
|
if (wr != outlen) {
|
|
UnicodeString str(strerror(errno));
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantWrite", str.getTerminatedBuffer());
|
|
willexit = TRUE;
|
|
}
|
|
|
|
if (willexit) {
|
|
goto error_exit;
|
|
}
|
|
} while (!toSawEndOfUnicode);
|
|
} while (!fromSawEndOfBytes);
|
|
} while (!flush); // Stop when we have flushed the
|
|
// converters (this means that it's
|
|
// the end of output)
|
|
|
|
goto normal_exit;
|
|
|
|
error_exit:
|
|
ret = FALSE;
|
|
|
|
normal_exit:
|
|
// Cleanup.
|
|
|
|
ucnv_close(convfrom);
|
|
ucnv_close(convto);
|
|
|
|
#if !UCONFIG_NO_TRANSLITERATION
|
|
delete t;
|
|
#endif
|
|
|
|
if (infile != stdin) {
|
|
fclose(infile);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void usage(const char *pname, int ecode) {
|
|
const UChar *msg;
|
|
int32_t msgLen;
|
|
UErrorCode err = U_ZERO_ERROR;
|
|
FILE *fp = ecode ? stderr : stdout;
|
|
int res;
|
|
|
|
initMsg(pname);
|
|
msg =
|
|
ures_getStringByKey(gBundle, ecode ? "lcUsageWord" : "ucUsageWord",
|
|
&msgLen, &err);
|
|
UnicodeString upname(pname, (int32_t)(uprv_strlen(pname) + 1));
|
|
UnicodeString mname(msg, msgLen + 1);
|
|
|
|
res = u_wmsg(fp, "usage", mname.getBuffer(), upname.getBuffer());
|
|
if (!ecode) {
|
|
if (!res) {
|
|
fputc('\n', fp);
|
|
}
|
|
if (!u_wmsg(fp, "help")) {
|
|
/* Now dump callbacks and finish. */
|
|
|
|
int i, count =
|
|
sizeof(transcode_callbacks) / sizeof(*transcode_callbacks);
|
|
for (i = 0; i < count; ++i) {
|
|
fprintf(fp, " %s", transcode_callbacks[i].name);
|
|
}
|
|
fputc('\n', fp);
|
|
}
|
|
}
|
|
|
|
exit(ecode);
|
|
}
|
|
|
|
extern int
|
|
main(int argc, char **argv)
|
|
{
|
|
FILE *outfile;
|
|
int ret = 0;
|
|
|
|
size_t bufsz = DEFAULT_BUFSZ;
|
|
|
|
const char *fromcpage = 0;
|
|
const char *tocpage = 0;
|
|
const char *translit = 0;
|
|
const char *outfilestr = 0;
|
|
UBool fallback = FALSE;
|
|
|
|
UConverterFromUCallback fromucallback = UCNV_FROM_U_CALLBACK_STOP;
|
|
const void *fromuctxt = 0;
|
|
UConverterToUCallback toucallback = UCNV_TO_U_CALLBACK_STOP;
|
|
const void *touctxt = 0;
|
|
|
|
char **iter, **remainArgv, **remainArgvLimit;
|
|
char **end = argv + argc;
|
|
|
|
const char *pname;
|
|
|
|
UBool printConvs = FALSE, printCanon = FALSE, printTranslits = FALSE;
|
|
const char *printName = 0;
|
|
|
|
UBool verbose = FALSE;
|
|
UErrorCode status = U_ZERO_ERROR;
|
|
|
|
ConvertFile cf;
|
|
|
|
/* Initialize ICU */
|
|
u_init(&status);
|
|
if (U_FAILURE(status)) {
|
|
fprintf(stderr, "%s: can not initialize ICU. status = %s\n",
|
|
argv[0], u_errorName(status));
|
|
exit(1);
|
|
}
|
|
|
|
// Get and prettify pname.
|
|
pname = uprv_strrchr(*argv, U_FILE_SEP_CHAR);
|
|
#ifdef WIN32
|
|
if (!pname) {
|
|
pname = uprv_strrchr(*argv, '/');
|
|
}
|
|
#endif
|
|
if (!pname) {
|
|
pname = *argv;
|
|
} else {
|
|
++pname;
|
|
}
|
|
|
|
// First, get the arguments from command-line
|
|
// to know the codepages to convert between
|
|
|
|
remainArgv = remainArgvLimit = argv + 1;
|
|
for (iter = argv + 1; iter != end; iter++) {
|
|
// Check for from charset
|
|
if (strcmp("-f", *iter) == 0 || !strcmp("--from-code", *iter)) {
|
|
iter++;
|
|
if (iter != end)
|
|
fromcpage = *iter;
|
|
else
|
|
usage(pname, 1);
|
|
} else if (strcmp("-t", *iter) == 0 || !strcmp("--to-code", *iter)) {
|
|
iter++;
|
|
if (iter != end)
|
|
tocpage = *iter;
|
|
else
|
|
usage(pname, 1);
|
|
} else if (strcmp("-x", *iter) == 0) {
|
|
iter++;
|
|
if (iter != end)
|
|
translit = *iter;
|
|
else
|
|
usage(pname, 1);
|
|
} else if (!strcmp("--fallback", *iter)) {
|
|
fallback = TRUE;
|
|
} else if (!strcmp("--no-fallback", *iter)) {
|
|
fallback = FALSE;
|
|
} else if (strcmp("-b", *iter) == 0 || !strcmp("--block-size", *iter)) {
|
|
iter++;
|
|
if (iter != end) {
|
|
bufsz = atoi(*iter);
|
|
if ((int) bufsz <= 0) {
|
|
initMsg(pname);
|
|
UnicodeString str(*iter);
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "badBlockSize", str.getTerminatedBuffer());
|
|
return 3;
|
|
}
|
|
} else {
|
|
usage(pname, 1);
|
|
}
|
|
} else if (strcmp("-l", *iter) == 0 || !strcmp("--list", *iter)) {
|
|
if (printTranslits) {
|
|
usage(pname, 1);
|
|
}
|
|
printConvs = TRUE;
|
|
} else if (strcmp("--default-code", *iter) == 0) {
|
|
if (printTranslits) {
|
|
usage(pname, 1);
|
|
}
|
|
printName = ucnv_getDefaultName();
|
|
} else if (strcmp("--list-code", *iter) == 0) {
|
|
if (printTranslits) {
|
|
usage(pname, 1);
|
|
}
|
|
|
|
iter++;
|
|
if (iter != end) {
|
|
UErrorCode e = U_ZERO_ERROR;
|
|
printName = ucnv_getAlias(*iter, 0, &e);
|
|
if (U_FAILURE(e) || !printName) {
|
|
UnicodeString str(*iter);
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "noSuchCodeset", str.getTerminatedBuffer());
|
|
return 2;
|
|
}
|
|
} else
|
|
usage(pname, 1);
|
|
} else if (strcmp("--canon", *iter) == 0) {
|
|
printCanon = TRUE;
|
|
} else if (strcmp("-L", *iter) == 0
|
|
|| !strcmp("--list-transliterators", *iter)) {
|
|
if (printConvs) {
|
|
usage(pname, 1);
|
|
}
|
|
printTranslits = TRUE;
|
|
} else if (strcmp("-h", *iter) == 0 || !strcmp("-?", *iter)
|
|
|| !strcmp("--help", *iter)) {
|
|
usage(pname, 0);
|
|
} else if (!strcmp("-c", *iter)) {
|
|
fromucallback = UCNV_FROM_U_CALLBACK_SKIP;
|
|
} else if (!strcmp("--to-callback", *iter)) {
|
|
iter++;
|
|
if (iter != end) {
|
|
const struct callback_ent *cbe = findCallback(*iter);
|
|
if (cbe) {
|
|
fromucallback = cbe->fromu;
|
|
fromuctxt = cbe->fromuctxt;
|
|
} else {
|
|
UnicodeString str(*iter);
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "unknownCallback", str.getTerminatedBuffer());
|
|
return 4;
|
|
}
|
|
} else {
|
|
usage(pname, 1);
|
|
}
|
|
} else if (!strcmp("--from-callback", *iter)) {
|
|
iter++;
|
|
if (iter != end) {
|
|
const struct callback_ent *cbe = findCallback(*iter);
|
|
if (cbe) {
|
|
toucallback = cbe->tou;
|
|
touctxt = cbe->touctxt;
|
|
} else {
|
|
UnicodeString str(*iter);
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "unknownCallback", str.getTerminatedBuffer());
|
|
return 4;
|
|
}
|
|
} else {
|
|
usage(pname, 1);
|
|
}
|
|
} else if (!strcmp("-i", *iter)) {
|
|
toucallback = UCNV_TO_U_CALLBACK_SKIP;
|
|
} else if (!strcmp("--callback", *iter)) {
|
|
iter++;
|
|
if (iter != end) {
|
|
const struct callback_ent *cbe = findCallback(*iter);
|
|
if (cbe) {
|
|
fromucallback = cbe->fromu;
|
|
fromuctxt = cbe->fromuctxt;
|
|
toucallback = cbe->tou;
|
|
touctxt = cbe->touctxt;
|
|
} else {
|
|
UnicodeString str(*iter);
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "unknownCallback", str.getTerminatedBuffer());
|
|
return 4;
|
|
}
|
|
} else {
|
|
usage(pname, 1);
|
|
}
|
|
} else if (!strcmp("-s", *iter) || !strcmp("--silent", *iter)) {
|
|
verbose = FALSE;
|
|
} else if (!strcmp("-v", *iter) || !strcmp("--verbose", *iter)) {
|
|
verbose = TRUE;
|
|
} else if (!strcmp("-V", *iter) || !strcmp("--version", *iter)) {
|
|
printf("%s v2.1 ICU " U_ICU_VERSION "\n", pname);
|
|
return 0;
|
|
} else if (!strcmp("-o", *iter) || !strcmp("--output", *iter)) {
|
|
++iter;
|
|
if (iter != end && !outfilestr) {
|
|
outfilestr = *iter;
|
|
} else {
|
|
usage(pname, 1);
|
|
}
|
|
} else if (0 == strcmp("--add-signature", *iter)) {
|
|
cf.signature = 1;
|
|
} else if (0 == strcmp("--remove-signature", *iter)) {
|
|
cf.signature = -1;
|
|
} else if (**iter == '-' && (*iter)[1]) {
|
|
usage(pname, 1);
|
|
} else {
|
|
// move a non-option up in argv[]
|
|
*remainArgvLimit++ = *iter;
|
|
}
|
|
}
|
|
|
|
if (printConvs || printName) {
|
|
return printConverters(pname, printName, printCanon) ? 2 : 0;
|
|
} else if (printTranslits) {
|
|
return printTransliterators(printCanon) ? 3 : 0;
|
|
}
|
|
|
|
if (!fromcpage || !uprv_strcmp(fromcpage, "-")) {
|
|
fromcpage = ucnv_getDefaultName();
|
|
}
|
|
if (!tocpage || !uprv_strcmp(tocpage, "-")) {
|
|
tocpage = ucnv_getDefaultName();
|
|
}
|
|
|
|
// Open the correct output file or connect to stdout for reading input
|
|
if (outfilestr != 0 && strcmp(outfilestr, "-")) {
|
|
outfile = fopen(outfilestr, "wb");
|
|
if (outfile == 0) {
|
|
UnicodeString str1(outfilestr, "");
|
|
UnicodeString str2(strerror(errno), "");
|
|
initMsg(pname);
|
|
u_wmsg(stderr, "cantCreateOutputF",
|
|
str1.getBuffer(), str2.getBuffer());
|
|
return 1;
|
|
}
|
|
} else {
|
|
outfilestr = "-";
|
|
outfile = stdout;
|
|
#ifdef USE_FILENO_BINARY_MODE
|
|
if (setmode(fileno(outfile), O_BINARY) == -1) {
|
|
u_wmsg(stderr, "cantSetOutBinMode");
|
|
exit(-1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* Loop again on the arguments to find all the input files, and
|
|
convert them. */
|
|
|
|
cf.setBufferSize(bufsz);
|
|
|
|
if(remainArgv < remainArgvLimit) {
|
|
for (iter = remainArgv; iter != remainArgvLimit; iter++) {
|
|
if (!cf.convertFile(
|
|
pname, fromcpage, toucallback, touctxt, tocpage,
|
|
fromucallback, fromuctxt, fallback, translit, *iter,
|
|
outfile, verbose)
|
|
) {
|
|
goto error_exit;
|
|
}
|
|
}
|
|
} else {
|
|
if (!cf.convertFile(
|
|
pname, fromcpage, toucallback, touctxt, tocpage,
|
|
fromucallback, fromuctxt, fallback, translit, 0,
|
|
outfile, verbose)
|
|
) {
|
|
goto error_exit;
|
|
}
|
|
}
|
|
|
|
goto normal_exit;
|
|
error_exit:
|
|
ret = 1;
|
|
normal_exit:
|
|
|
|
if (outfile != stdout) {
|
|
fclose(outfile);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
|
|
/*
|
|
* Hey, Emacs, please set the following:
|
|
*
|
|
* Local Variables:
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
*/
|