478 lines
17 KiB
C++
478 lines
17 KiB
C++
/*
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**********************************************************************
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* Copyright (C) 2002-2015, 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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* File gendict.cpp
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*/
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#include "unicode/utypes.h"
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#include "unicode/uchar.h"
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#include "unicode/ucnv.h"
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#include "unicode/uniset.h"
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#include "unicode/unistr.h"
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#include "unicode/uclean.h"
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#include "unicode/udata.h"
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#include "unicode/putil.h"
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#include "unicode/ucharstriebuilder.h"
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#include "unicode/bytestriebuilder.h"
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#include "unicode/ucharstrie.h"
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#include "unicode/bytestrie.h"
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#include "unicode/ucnv.h"
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#include "unicode/utf16.h"
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#include "charstr.h"
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#include "dictionarydata.h"
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#include "uoptions.h"
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#include "unewdata.h"
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#include "cmemory.h"
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#include "uassert.h"
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#include "ucbuf.h"
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#include "toolutil.h"
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#include "cstring.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "putilimp.h"
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UDate startTime;
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static int elapsedTime() {
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return (int)uprv_floor((uprv_getRawUTCtime()-startTime)/1000.0);
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}
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U_NAMESPACE_USE
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static char *progName;
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static UOption options[]={
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UOPTION_HELP_H, /* 0 */
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UOPTION_HELP_QUESTION_MARK, /* 1 */
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UOPTION_VERBOSE, /* 2 */
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UOPTION_ICUDATADIR, /* 4 */
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UOPTION_COPYRIGHT, /* 5 */
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{ "uchars", NULL, NULL, NULL, '\1', UOPT_NO_ARG, 0}, /* 6 */
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{ "bytes", NULL, NULL, NULL, '\1', UOPT_NO_ARG, 0}, /* 7 */
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{ "transform", NULL, NULL, NULL, '\1', UOPT_REQUIRES_ARG, 0}, /* 8 */
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UOPTION_QUIET, /* 9 */
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};
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enum arguments {
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ARG_HELP = 0,
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ARG_QMARK,
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ARG_VERBOSE,
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ARG_ICUDATADIR,
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ARG_COPYRIGHT,
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ARG_UCHARS,
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ARG_BYTES,
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ARG_TRANSFORM,
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ARG_QUIET
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};
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// prints out the standard usage method describing command line arguments,
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// then bails out with the desired exit code
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static void usageAndDie(UErrorCode retCode) {
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fprintf((U_SUCCESS(retCode) ? stdout : stderr), "Usage: %s -trietype [-options] input-dictionary-file output-file\n", progName);
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fprintf((U_SUCCESS(retCode) ? stdout : stderr),
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"\tRead in a word list and write out a string trie dictionary\n"
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"options:\n"
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"\t-h or -? or --help this usage text\n"
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"\t-V or --version show a version message\n"
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"\t-c or --copyright include a copyright notice\n"
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"\t-v or --verbose turn on verbose output\n"
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"\t-q or --quiet do not display warnings and progress\n"
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"\t-i or --icudatadir directory for locating any needed intermediate data files,\n" // TODO: figure out if we need this option
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"\t followed by path, defaults to %s\n"
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"\t--uchars output a UCharsTrie (mutually exclusive with -b!)\n"
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"\t--bytes output a BytesTrie (mutually exclusive with -u!)\n"
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"\t--transform the kind of transform to use (eg --transform offset-40A3,\n"
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"\t which specifies an offset transform with constant 0x40A3)\n",
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u_getDataDirectory());
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exit(retCode);
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}
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/* UDataInfo cf. udata.h */
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static UDataInfo dataInfo = {
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sizeof(UDataInfo),
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0,
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U_IS_BIG_ENDIAN,
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U_CHARSET_FAMILY,
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U_SIZEOF_UCHAR,
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0,
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{ 0x44, 0x69, 0x63, 0x74 }, /* "Dict" */
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{ 1, 0, 0, 0 }, /* format version */
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{ 0, 0, 0, 0 } /* data version */
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};
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#if !UCONFIG_NO_BREAK_ITERATION
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// A wrapper for both BytesTrieBuilder and UCharsTrieBuilder.
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// may want to put this somewhere in ICU, as it could be useful outside
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// of this tool?
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class DataDict {
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private:
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BytesTrieBuilder *bt;
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UCharsTrieBuilder *ut;
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UChar32 transformConstant;
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int32_t transformType;
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public:
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// constructs a new data dictionary. if there is an error,
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// it will be returned in status
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// isBytesTrie != 0 will produce a BytesTrieBuilder,
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// isBytesTrie == 0 will produce a UCharsTrieBuilder
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DataDict(UBool isBytesTrie, UErrorCode &status) : bt(NULL), ut(NULL),
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transformConstant(0), transformType(DictionaryData::TRANSFORM_NONE) {
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if (isBytesTrie) {
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bt = new BytesTrieBuilder(status);
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} else {
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ut = new UCharsTrieBuilder(status);
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}
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}
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~DataDict() {
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delete bt;
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delete ut;
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}
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private:
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char transform(UChar32 c, UErrorCode &status) {
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if (transformType == DictionaryData::TRANSFORM_TYPE_OFFSET) {
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if (c == 0x200D) { return (char)0xFF; }
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else if (c == 0x200C) { return (char)0xFE; }
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int32_t delta = c - transformConstant;
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if (delta < 0 || 0xFD < delta) {
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fprintf(stderr, "Codepoint U+%04lx out of range for --transform offset-%04lx!\n",
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(long)c, (long)transformConstant);
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exit(U_ILLEGAL_ARGUMENT_ERROR); // TODO: should return and print the line number
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}
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return (char)delta;
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} else { // no such transform type
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status = U_INTERNAL_PROGRAM_ERROR;
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return (char)c; // it should be noted this transform type will not generally work
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}
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}
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void transform(const UnicodeString &word, CharString &buf, UErrorCode &errorCode) {
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UChar32 c = 0;
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int32_t len = word.length();
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for (int32_t i = 0; i < len; i += U16_LENGTH(c)) {
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c = word.char32At(i);
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buf.append(transform(c, errorCode), errorCode);
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}
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}
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public:
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// sets the desired transformation data.
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// should be populated from a command line argument
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// so far the only acceptable format is offset-<hex constant>
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// eventually others (mask-<hex constant>?) may be enabled
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// more complex functions may be more difficult
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void setTransform(const char *t) {
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if (strncmp(t, "offset-", 7) == 0) {
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char *end;
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unsigned long base = uprv_strtoul(t + 7, &end, 16);
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if (end == (t + 7) || *end != 0 || base > 0x10FF80) {
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fprintf(stderr, "Syntax for offset value in --transform offset-%s invalid!\n", t + 7);
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usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
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}
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transformType = DictionaryData::TRANSFORM_TYPE_OFFSET;
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transformConstant = (UChar32)base;
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}
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else {
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fprintf(stderr, "Invalid transform specified: %s\n", t);
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usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
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}
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}
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// add a word to the trie
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void addWord(const UnicodeString &word, int32_t value, UErrorCode &status) {
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if (bt) {
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CharString buf;
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transform(word, buf, status);
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bt->add(buf.toStringPiece(), value, status);
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}
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if (ut) { ut->add(word, value, status); }
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}
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// if we are a bytestrie, give back the StringPiece representing the serialized version of us
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StringPiece serializeBytes(UErrorCode &status) {
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return bt->buildStringPiece(USTRINGTRIE_BUILD_SMALL, status);
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}
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// if we are a ucharstrie, produce the UnicodeString representing the serialized version of us
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void serializeUChars(UnicodeString &s, UErrorCode &status) {
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ut->buildUnicodeString(USTRINGTRIE_BUILD_SMALL, s, status);
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}
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int32_t getTransform() {
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return (int32_t)(transformType | transformConstant);
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}
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};
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#endif
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static const UChar LINEFEED_CHARACTER = 0x000A;
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static const UChar CARRIAGE_RETURN_CHARACTER = 0x000D;
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static UBool readLine(UCHARBUF *f, UnicodeString &fileLine, IcuToolErrorCode &errorCode) {
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int32_t lineLength;
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const UChar *line = ucbuf_readline(f, &lineLength, errorCode);
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if(line == NULL || errorCode.isFailure()) { return FALSE; }
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// Strip trailing CR/LF, comments, and spaces.
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const UChar *comment = u_memchr(line, 0x23, lineLength); // '#'
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if(comment != NULL) {
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lineLength = (int32_t)(comment - line);
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} else {
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while(lineLength > 0 && (line[lineLength - 1] == CARRIAGE_RETURN_CHARACTER || line[lineLength - 1] == LINEFEED_CHARACTER)) { --lineLength; }
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}
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while(lineLength > 0 && u_isspace(line[lineLength - 1])) { --lineLength; }
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fileLine.setTo(FALSE, line, lineLength);
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return TRUE;
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}
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//----------------------------------------------------------------------------
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//
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// main for gendict
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//
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//----------------------------------------------------------------------------
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int main(int argc, char **argv) {
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//
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// Pick up and check the command line arguments,
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// using the standard ICU tool utils option handling.
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//
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U_MAIN_INIT_ARGS(argc, argv);
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progName = argv[0];
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argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
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if(argc<0) {
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// Unrecognized option
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fprintf(stderr, "error in command line argument \"%s\"\n", argv[-argc]);
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usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
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}
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if(options[ARG_HELP].doesOccur || options[ARG_QMARK].doesOccur) {
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// -? or -h for help.
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usageAndDie(U_ZERO_ERROR);
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}
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UBool verbose = options[ARG_VERBOSE].doesOccur;
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UBool quiet = options[ARG_QUIET].doesOccur;
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if (argc < 3) {
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fprintf(stderr, "input and output file must both be specified.\n");
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usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
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}
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const char *outFileName = argv[2];
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const char *wordFileName = argv[1];
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startTime = uprv_getRawUTCtime(); // initialize start timer
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if (options[ARG_ICUDATADIR].doesOccur) {
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u_setDataDirectory(options[ARG_ICUDATADIR].value);
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}
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const char *copyright = NULL;
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if (options[ARG_COPYRIGHT].doesOccur) {
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copyright = U_COPYRIGHT_STRING;
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}
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if (options[ARG_UCHARS].doesOccur == options[ARG_BYTES].doesOccur) {
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fprintf(stderr, "you must specify exactly one type of trie to output!\n");
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usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
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}
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UBool isBytesTrie = options[ARG_BYTES].doesOccur;
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if (isBytesTrie != options[ARG_TRANSFORM].doesOccur) {
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fprintf(stderr, "you must provide a transformation for a bytes trie, and must not provide one for a uchars trie!\n");
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usageAndDie(U_ILLEGAL_ARGUMENT_ERROR);
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}
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IcuToolErrorCode status("gendict/main()");
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#if UCONFIG_NO_BREAK_ITERATION || UCONFIG_NO_FILE_IO
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const char* outDir=NULL;
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UNewDataMemory *pData;
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char msg[1024];
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UErrorCode tempstatus = U_ZERO_ERROR;
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/* write message with just the name */ // potential for a buffer overflow here...
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sprintf(msg, "gendict writes dummy %s because of UCONFIG_NO_BREAK_ITERATION and/or UCONFIG_NO_FILE_IO, see uconfig.h", outFileName);
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fprintf(stderr, "%s\n", msg);
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/* write the dummy data file */
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pData = udata_create(outDir, NULL, outFileName, &dataInfo, NULL, &tempstatus);
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udata_writeBlock(pData, msg, strlen(msg));
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udata_finish(pData, &tempstatus);
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return (int)tempstatus;
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#else
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// Read in the dictionary source file
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if (verbose) { printf("Opening file %s...\n", wordFileName); }
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const char *codepage = "UTF-8";
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UCHARBUF *f = ucbuf_open(wordFileName, &codepage, TRUE, FALSE, status);
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if (status.isFailure()) {
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fprintf(stderr, "error opening input file: ICU Error \"%s\"\n", status.errorName());
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exit(status.reset());
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}
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if (verbose) { printf("Initializing dictionary builder of type %s...\n", (isBytesTrie ? "BytesTrie" : "UCharsTrie")); }
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DataDict dict(isBytesTrie, status);
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if (status.isFailure()) {
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fprintf(stderr, "new DataDict: ICU Error \"%s\"\n", status.errorName());
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exit(status.reset());
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}
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if (options[ARG_TRANSFORM].doesOccur) {
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dict.setTransform(options[ARG_TRANSFORM].value);
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}
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UnicodeString fileLine;
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if (verbose) { puts("Adding words to dictionary..."); }
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UBool hasValues = FALSE;
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UBool hasValuelessContents = FALSE;
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int lineCount = 0;
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int wordCount = 0;
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int minlen = 255;
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int maxlen = 0;
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UBool isOk = TRUE;
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while (readLine(f, fileLine, status)) {
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lineCount++;
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if (fileLine.isEmpty()) continue;
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// Parse word [spaces value].
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int32_t keyLen;
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for (keyLen = 0; keyLen < fileLine.length() && !u_isspace(fileLine[keyLen]); ++keyLen) {}
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if (keyLen == 0) {
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fprintf(stderr, "Error: no word on line %i!\n", lineCount);
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isOk = FALSE;
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continue;
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}
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int32_t valueStart;
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for (valueStart = keyLen;
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valueStart < fileLine.length() && u_isspace(fileLine[valueStart]);
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++valueStart) {}
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if (keyLen < valueStart) {
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int32_t valueLength = fileLine.length() - valueStart;
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if (valueLength > 15) {
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fprintf(stderr, "Error: value too long on line %i!\n", lineCount);
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isOk = FALSE;
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continue;
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}
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char s[16];
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fileLine.extract(valueStart, valueLength, s, 16, US_INV);
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char *end;
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unsigned long value = uprv_strtoul(s, &end, 0);
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if (end == s || *end != 0 || (int32_t)uprv_strlen(s) != valueLength || value > 0xffffffff) {
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fprintf(stderr, "Error: value syntax error or value too large on line %i!\n", lineCount);
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isOk = FALSE;
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continue;
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}
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dict.addWord(fileLine.tempSubString(0, keyLen), (int32_t)value, status);
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hasValues = TRUE;
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wordCount++;
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if (keyLen < minlen) minlen = keyLen;
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if (keyLen > maxlen) maxlen = keyLen;
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} else {
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dict.addWord(fileLine.tempSubString(0, keyLen), 0, status);
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hasValuelessContents = TRUE;
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wordCount++;
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if (keyLen < minlen) minlen = keyLen;
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if (keyLen > maxlen) maxlen = keyLen;
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}
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if (status.isFailure()) {
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fprintf(stderr, "ICU Error \"%s\": Failed to add word to trie at input line %d in input file\n",
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status.errorName(), lineCount);
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exit(status.reset());
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}
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}
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if (verbose) { printf("Processed %d lines, added %d words, minlen %d, maxlen %d\n", lineCount, wordCount, minlen, maxlen); }
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if (!isOk && status.isSuccess()) {
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status.set(U_ILLEGAL_ARGUMENT_ERROR);
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}
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if (hasValues && hasValuelessContents) {
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fprintf(stderr, "warning: file contained both valued and unvalued strings!\n");
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}
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if (verbose) { printf("Serializing data...isBytesTrie? %d\n", isBytesTrie); }
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int32_t outDataSize;
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const void *outData;
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UnicodeString usp;
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if (isBytesTrie) {
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StringPiece sp = dict.serializeBytes(status);
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outDataSize = sp.size();
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outData = sp.data();
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} else {
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dict.serializeUChars(usp, status);
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outDataSize = usp.length() * U_SIZEOF_UCHAR;
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outData = usp.getBuffer();
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}
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if (status.isFailure()) {
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fprintf(stderr, "gendict: got failure of type %s while serializing, if U_ILLEGAL_ARGUMENT_ERROR possibly due to duplicate dictionary entries\n", status.errorName());
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exit(status.reset());
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}
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if (verbose) { puts("Opening output file..."); }
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UNewDataMemory *pData = udata_create(NULL, NULL, outFileName, &dataInfo, copyright, status);
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if (status.isFailure()) {
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fprintf(stderr, "gendict: could not open output file \"%s\", \"%s\"\n", outFileName, status.errorName());
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exit(status.reset());
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}
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if (verbose) { puts("Writing to output file..."); }
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int32_t indexes[DictionaryData::IX_COUNT] = {
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DictionaryData::IX_COUNT * sizeof(int32_t), 0, 0, 0, 0, 0, 0, 0
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};
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int32_t size = outDataSize + indexes[DictionaryData::IX_STRING_TRIE_OFFSET];
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indexes[DictionaryData::IX_RESERVED1_OFFSET] = size;
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indexes[DictionaryData::IX_RESERVED2_OFFSET] = size;
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indexes[DictionaryData::IX_TOTAL_SIZE] = size;
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indexes[DictionaryData::IX_TRIE_TYPE] = isBytesTrie ? DictionaryData::TRIE_TYPE_BYTES : DictionaryData::TRIE_TYPE_UCHARS;
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if (hasValues) {
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indexes[DictionaryData::IX_TRIE_TYPE] |= DictionaryData::TRIE_HAS_VALUES;
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}
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indexes[DictionaryData::IX_TRANSFORM] = dict.getTransform();
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udata_writeBlock(pData, indexes, sizeof(indexes));
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udata_writeBlock(pData, outData, outDataSize);
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size_t bytesWritten = udata_finish(pData, status);
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if (status.isFailure()) {
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fprintf(stderr, "gendict: error \"%s\" writing the output file\n", status.errorName());
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exit(status.reset());
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}
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if (bytesWritten != (size_t)size) {
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fprintf(stderr, "Error writing to output file \"%s\"\n", outFileName);
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exit(U_INTERNAL_PROGRAM_ERROR);
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}
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if (!quiet) { printf("%s: done writing\t%s (%ds).\n", progName, outFileName, elapsedTime()); }
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#ifdef TEST_GENDICT
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if (isBytesTrie) {
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BytesTrie::Iterator it(outData, outDataSize, status);
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while (it.hasNext()) {
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it.next(status);
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const StringPiece s = it.getString();
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int32_t val = it.getValue();
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printf("%s -> %i\n", s.data(), val);
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}
|
|
} else {
|
|
UCharsTrie::Iterator it((const UChar *)outData, outDataSize, status);
|
|
while (it.hasNext()) {
|
|
it.next(status);
|
|
const UnicodeString s = it.getString();
|
|
int32_t val = it.getValue();
|
|
char tmp[1024];
|
|
s.extract(0, s.length(), tmp, 1024);
|
|
printf("%s -> %i\n", tmp, val);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
#endif /* #if !UCONFIG_NO_BREAK_ITERATION */
|
|
}
|