The Tor Browser: intl/icu/source/tools/gencnval/gencnval.c@fc2d59ddac77 (annotated)

intl/icu/source/tools/gencnval/gencnval.c@fc2d59ddac77 (annotated)

intl/icu/source/tools/gencnval/gencnval.c

Wed, 31 Dec 2014 07:22:50 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 07:22:50 +0100
branch: TOR_BUG_3246
changeset 4: fc2d59ddac77
permissions: -rw-r--r--

Correct previous dual key logic pending first delivery installment.

 /*
 *******************************************************************************
 *
 *   Copyright (C) 1999-2012, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
 *   file name:  gencnval.c
 *   encoding:   US-ASCII
 *   tab size:   8 (not used)
 *   indentation:4
 *
 *   created on: 1999nov05
 *   created by: Markus W. Scherer
 *
 *   This program reads convrtrs.txt and writes a memory-mappable
 *   converter name alias table to cnvalias.dat .
 *
 *   This program currently writes version 2.1 of the data format. See
 *   ucnv_io.c for more details on the format. Note that version 2.1
 *   is written in such a way that a 2.0 reader will be able to use it,
 *   and a 2.1 reader will be able to read 2.0.
 */
 #include "unicode/utypes.h"
 #include "unicode/putil.h"
 #include "unicode/ucnv.h" /* ucnv_compareNames() */
 #include "ucnv_io.h"
 #include "cmemory.h"
 #include "cstring.h"
 #include "uinvchar.h"
 #include "filestrm.h"
 #include "unicode/uclean.h"
 #include "unewdata.h"
 #include "uoptions.h"
 #include <stdio.h>
 #include <stdlib.h>
 #include <ctype.h>
 /* TODO: Need to check alias name length is less than UCNV_MAX_CONVERTER_NAME_LENGTH */
 /* STRING_STORE_SIZE + TAG_STORE_SIZE <= ((2^16 - 1) * 2)
  That is the maximum size for the string stores combined
  because the strings are index at 16-bit boundries by a
 -bit index, and there is only one section for the
  strings.
  */
 #define STRING_STORE_SIZE 0x1FBFE   /* 130046 */
 #define TAG_STORE_SIZE      0x400   /* 1024 */
 /* The combined tag and converter count can affect the number of lists
  created.  The size of all lists must be less than (2^17 - 1)
  because the lists are indexed as a 16-bit array with a 16-bit index.
  */
 #define MAX_TAG_COUNT 0x3F      /* 63 */
 #define MAX_CONV_COUNT UCNV_CONVERTER_INDEX_MASK
 #define MAX_ALIAS_COUNT 0xFFFF  /* 65535 */
 /* The maximum number of aliases that a standard tag/converter combination can have.
  At this moment 6/18/2002, IANA has 12 names for ASCII. Don't go below 15 for
  this value. I don't recommend more than 31 for this value.
  */
 #define MAX_TC_ALIAS_COUNT 0x1F    /* 31 */
 #define MAX_LINE_SIZE 0x7FFF    /* 32767 */
 #define MAX_LIST_SIZE 0xFFFF    /* 65535 */
 #define DATA_NAME "cnvalias"
 #define DATA_TYPE "icu" /* ICU alias table */
 #define ALL_TAG_STR "ALL"
 #define ALL_TAG_NUM 1
 #define EMPTY_TAG_NUM 0
 /* UDataInfo cf. udata.h */
 static const UDataInfo dataInfo={
     sizeof(UDataInfo),
 ,
     U_IS_BIG_ENDIAN,
     U_CHARSET_FAMILY,
     sizeof(UChar),
 ,
     {0x43, 0x76, 0x41, 0x6c},     /* dataFormat="CvAl" */
     {3, 0, 1, 0},                 /* formatVersion */
     {1, 4, 2, 0}                  /* dataVersion */
 };
 typedef struct {
     char *store;
     uint32_t top;
     uint32_t max;
 } StringBlock;
 static char stringStore[STRING_STORE_SIZE];
 static StringBlock stringBlock = { stringStore, 0, STRING_STORE_SIZE };
 typedef struct {
     uint16_t    aliasCount;
     uint16_t    *aliases;     /* Index into stringStore */
 } AliasList;
 typedef struct {
     uint16_t converter;     /* Index into stringStore */
     uint16_t totalAliasCount;    /* Total aliases in this column */
 } Converter;
 static Converter converters[MAX_CONV_COUNT];
 static uint16_t converterCount=0;
 static char tagStore[TAG_STORE_SIZE];
 static StringBlock tagBlock = { tagStore, 0, TAG_STORE_SIZE };
 typedef struct {
     uint16_t    tag;        /* Index into tagStore */
     uint16_t    totalAliasCount; /* Total aliases in this row */
     AliasList   aliasList[MAX_CONV_COUNT];
 } Tag;
 /* Think of this as a 3D array. It's tagCount by converterCount by aliasCount */
 static Tag tags[MAX_TAG_COUNT];
 static uint16_t tagCount = 0;
 /* Used for storing all aliases  */
 static uint16_t knownAliases[MAX_ALIAS_COUNT];
 static uint16_t knownAliasesCount = 0;
 /*static uint16_t duplicateKnownAliasesCount = 0;*/
 /* Used for storing the lists section that point to aliases */
 static uint16_t aliasLists[MAX_LIST_SIZE];
 static uint16_t aliasListsSize = 0;
 /* Were the standard tags declared before the aliases. */
 static UBool standardTagsUsed = FALSE;
 static UBool verbose = FALSE;
 static int lineNum = 1;
 static UConverterAliasOptions tableOptions = {
     UCNV_IO_STD_NORMALIZED,
 /* containsCnvOptionInfo */
 };
 /**
  * path to convrtrs.txt
  */
 const char *path;
 /* prototypes --------------------------------------------------------------- */
 static void
 parseLine(const char *line);
 static void
 parseFile(FileStream *in);
 static int32_t
 chomp(char *line);
 static void
 addOfficialTaggedStandards(char *line, int32_t lineLen);
 static uint16_t
 addAlias(const char *alias, uint16_t standard, uint16_t converter, UBool defaultName);
 static uint16_t
 addConverter(const char *converter);
 static char *
 allocString(StringBlock *block, const char *s, int32_t length);
 static uint16_t
 addToKnownAliases(const char *alias);
 static int
 compareAliases(const void *alias1, const void *alias2);
 static uint16_t
 getTagNumber(const char *tag, uint16_t tagLen);
 /*static void
 addTaggedAlias(uint16_t tag, const char *alias, uint16_t converter);*/
 static void
 writeAliasTable(UNewDataMemory *out);
 /* -------------------------------------------------------------------------- */
 /* Presumes that you used allocString() */
 #define GET_ALIAS_STR(index) (stringStore + ((size_t)(index) << 1))
 #define GET_TAG_STR(index) (tagStore + ((size_t)(index) << 1))
 /* Presumes that you used allocString() */
 #define GET_ALIAS_NUM(str) ((uint16_t)((str - stringStore) >> 1))
 #define GET_TAG_NUM(str) ((uint16_t)((str - tagStore) >> 1))
 enum
 {
     HELP1,
     HELP2,
     VERBOSE,
     COPYRIGHT,
     DESTDIR,
     SOURCEDIR
 };
 static UOption options[]={
     UOPTION_HELP_H,
     UOPTION_HELP_QUESTION_MARK,
     UOPTION_VERBOSE,
     UOPTION_COPYRIGHT,
     UOPTION_DESTDIR,
     UOPTION_SOURCEDIR
 };
 extern int
 main(int argc, char* argv[]) {
     int i, n;
     char pathBuf[512];
     FileStream *in;
     UNewDataMemory *out;
     UErrorCode errorCode=U_ZERO_ERROR;
     U_MAIN_INIT_ARGS(argc, argv);
     /* preset then read command line options */
     options[DESTDIR].value=options[SOURCEDIR].value=u_getDataDirectory();
     argc=u_parseArgs(argc, argv, sizeof(options)/sizeof(options[0]), options);
     /* error handling, printing usage message */
     if(argc<0) {
         fprintf(stderr,
             "error in command line argument \"%s\"\n",
             argv[-argc]);
     }
     if(argc<0 || options[HELP1].doesOccur || options[HELP2].doesOccur) {
         fprintf(stderr,
             "usage: %s [-options] [convrtrs.txt]\n"
             "\tread convrtrs.txt and create " U_ICUDATA_NAME "_" DATA_NAME "." DATA_TYPE "\n"
             "options:\n"
             "\t-h or -? or --help  this usage text\n"
             "\t-v or --verbose     prints out extra information about the alias table\n"
             "\t-c or --copyright   include a copyright notice\n"
             "\t-d or --destdir     destination directory, followed by the path\n"
             "\t-s or --sourcedir   source directory, followed by the path\n",
             argv[0]);
         return argc<0 ? U_ILLEGAL_ARGUMENT_ERROR : U_ZERO_ERROR;
     }
     if(options[VERBOSE].doesOccur) {
         verbose = TRUE;
     }
     if(argc>=2) {
         path=argv[1];
     } else {
         path=options[SOURCEDIR].value;
         if(path!=NULL && *path!=0) {
             char *end;
             uprv_strcpy(pathBuf, path);
             end = uprv_strchr(pathBuf, 0);
             if(*(end-1)!=U_FILE_SEP_CHAR) {
                 *(end++)=U_FILE_SEP_CHAR;
             }
             uprv_strcpy(end, "convrtrs.txt");
             path=pathBuf;
         } else {
             path = "convrtrs.txt";
         }
     }
     uprv_memset(stringStore, 0, sizeof(stringStore));
     uprv_memset(tagStore, 0, sizeof(tagStore));
     uprv_memset(converters, 0, sizeof(converters));
     uprv_memset(tags, 0, sizeof(tags));
     uprv_memset(aliasLists, 0, sizeof(aliasLists));
     uprv_memset(knownAliases, 0, sizeof(aliasLists));
     in=T_FileStream_open(path, "r");
     if(in==NULL) {
         fprintf(stderr, "gencnval: unable to open input file %s\n", path);
         exit(U_FILE_ACCESS_ERROR);
     }
     parseFile(in);
     T_FileStream_close(in);
     /* create the output file */
     out=udata_create(options[DESTDIR].value, DATA_TYPE, DATA_NAME, &dataInfo,
                      options[COPYRIGHT].doesOccur ? U_COPYRIGHT_STRING : NULL, &errorCode);
     if(U_FAILURE(errorCode)) {
         fprintf(stderr, "gencnval: unable to open output file - error %s\n", u_errorName(errorCode));
         exit(errorCode);
     }
     /* write the table of aliases based on a tag/converter name combination */
     writeAliasTable(out);
     /* finish */
     udata_finish(out, &errorCode);
     if(U_FAILURE(errorCode)) {
         fprintf(stderr, "gencnval: error finishing output file - %s\n", u_errorName(errorCode));
         exit(errorCode);
     }
     /* clean up tags */
     for (i = 0; i < MAX_TAG_COUNT; i++) {
         for (n = 0; n < MAX_CONV_COUNT; n++) {
             if (tags[i].aliasList[n].aliases!=NULL) {
                 uprv_free(tags[i].aliasList[n].aliases);
             }
         }
     }
     return 0;
 }
 static void
 parseFile(FileStream *in) {
     char line[MAX_LINE_SIZE];
     char lastLine[MAX_LINE_SIZE];
     int32_t lineSize = 0;
     int32_t lastLineSize = 0;
     UBool validParse = TRUE;
     lineNum = 0;
     /* Add the empty tag, which is for untagged aliases */
     getTagNumber("", 0);
     getTagNumber(ALL_TAG_STR, 3);
     allocString(&stringBlock, "", 0);
     /* read the list of aliases */
     while (validParse) {
         validParse = FALSE;
         /* Read non-empty lines that don't start with a space character. */
         while (T_FileStream_readLine(in, lastLine, MAX_LINE_SIZE) != NULL) {
             lastLineSize = chomp(lastLine);
             if (lineSize == 0 || (lastLineSize > 0 && isspace((int)*lastLine))) {
                 uprv_strcpy(line + lineSize, lastLine);
                 lineSize += lastLineSize;
             } else if (lineSize > 0) {
                 validParse = TRUE;
                 break;
             }
             lineNum++;
         }
         if (validParse || lineSize > 0) {
             if (isspace((int)*line)) {
                 fprintf(stderr, "%s:%d: error: cannot start an alias with a space\n", path, lineNum-1);
                 exit(U_PARSE_ERROR);
             } else if (line[0] == '{') {
                 if (!standardTagsUsed && line[lineSize - 1] != '}') {
                     fprintf(stderr, "%s:%d: error: alias needs to start with a converter name\n", path, lineNum);
                     exit(U_PARSE_ERROR);
                 }
                 addOfficialTaggedStandards(line, lineSize);
                 standardTagsUsed = TRUE;
             } else {
                 if (standardTagsUsed) {
                     parseLine(line);
                 }
                 else {
                     fprintf(stderr, "%s:%d: error: alias table needs to start a list of standard tags\n", path, lineNum);
                     exit(U_PARSE_ERROR);
                 }
             }
             /* Was the last line consumed */
             if (lastLineSize > 0) {
                 uprv_strcpy(line, lastLine);
                 lineSize = lastLineSize;
             }
             else {
                 lineSize = 0;
             }
         }
         lineNum++;
     }
 }
 /* This works almost like the Perl chomp.
  It removes the newlines, comments and trailing whitespace (not preceding whitespace).
 */
 static int32_t
 chomp(char *line) {
     char *s = line;
     char *lastNonSpace = line;
     while(*s!=0) {
         /* truncate at a newline or a comment */
         if(*s == '\r' || *s == '\n' || *s == '#') {
             *s = 0;
             break;
         }
         if (!isspace((int)*s)) {
             lastNonSpace = s;
         }
         ++s;
     }
     if (lastNonSpace++ > line) {
         *lastNonSpace = 0;
         s = lastNonSpace;
     }
     return (int32_t)(s - line);
 }
 static void
 parseLine(const char *line) {
     uint16_t pos=0, start, limit, length, cnv;
     char *converter, *alias;
     /* skip leading white space */
     /* There is no whitespace at the beginning anymore */
 /*    while(line[pos]!=0 && isspace(line[pos])) {
         ++pos;
     }
 */
     /* is there nothing on this line? */
     if(line[pos]==0) {
         return;
     }
     /* get the converter name */
     start=pos;
     while(line[pos]!=0 && !isspace((int)line[pos])) {
         ++pos;
     }
     limit=pos;
     /* store the converter name */
     length=(uint16_t)(limit-start);
     converter=allocString(&stringBlock, line+start, length);
     /* add the converter to the converter table */
     cnv=addConverter(converter);
     /* The name itself may be tagged, so let's added it to the aliases list properly */
     pos = start;
     /* get all the real aliases */
     for(;;) {
         /* skip white space */
         while(line[pos]!=0 && isspace((int)line[pos])) {
             ++pos;
         }
         /* is there no more alias name on this line? */
         if(line[pos]==0) {
             break;
         }
         /* get an alias name */
         start=pos;
         while(line[pos]!=0 && line[pos]!='{' && !isspace((int)line[pos])) {
             ++pos;
         }
         limit=pos;
         /* store the alias name */
         length=(uint16_t)(limit-start);
         if (start == 0) {
             /* add the converter as its own alias to the alias table */
             alias = converter;
             addAlias(alias, ALL_TAG_NUM, cnv, TRUE);
         }
         else {
             alias=allocString(&stringBlock, line+start, length);
             addAlias(alias, ALL_TAG_NUM, cnv, FALSE);
         }
         addToKnownAliases(alias);
         /* add the alias/converter pair to the alias table */
         /* addAlias(alias, 0, cnv, FALSE);*/
         /* skip whitespace */
         while (line[pos] && isspace((int)line[pos])) {
             ++pos;
         }
         /* handle tags if they are present */
         if (line[pos] == '{') {
             ++pos;
             do {
                 start = pos;
                 while (line[pos] && line[pos] != '}' && !isspace((int)line[pos])) {
                     ++pos;
                 }
                 limit = pos;
                 if (start != limit) {
                     /* add the tag to the tag table */
                     uint16_t tag = getTagNumber(line + start, (uint16_t)(limit - start));
                     addAlias(alias, tag, cnv, (UBool)(line[limit-1] == '*'));
                 }
                 while (line[pos] && isspace((int)line[pos])) {
                     ++pos;
                 }
             } while (line[pos] && line[pos] != '}');
             if (line[pos] == '}') {
                 ++pos;
             } else {
                 fprintf(stderr, "%s:%d: Unterminated tag list\n", path, lineNum);
                 exit(U_UNMATCHED_BRACES);
             }
         } else {
             addAlias(alias, EMPTY_TAG_NUM, cnv, (UBool)(tags[0].aliasList[cnv].aliasCount == 0));
         }
     }
 }
 static uint16_t
 getTagNumber(const char *tag, uint16_t tagLen) {
     char *atag;
     uint16_t t;
     UBool preferredName = ((tagLen > 0) ? (tag[tagLen - 1] == '*') : (FALSE));
     if (tagCount >= MAX_TAG_COUNT) {
         fprintf(stderr, "%s:%d: too many tags\n", path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     if (preferredName) {
 /*        puts(tag);*/
         tagLen--;
     }
     for (t = 0; t < tagCount; ++t) {
         const char *currTag = GET_TAG_STR(tags[t].tag);
         if (uprv_strlen(currTag) == tagLen && !uprv_strnicmp(currTag, tag, tagLen)) {
             return t;
         }
     }
     /* we need to add this tag */
     if (tagCount >= MAX_TAG_COUNT) {
         fprintf(stderr, "%s:%d: error: too many tags\n", path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     /* allocate a new entry in the tag table */
     atag = allocString(&tagBlock, tag, tagLen);
     if (standardTagsUsed) {
         fprintf(stderr, "%s:%d: error: Tag \"%s\" is not declared at the beginning of the alias table.\n",
             path, lineNum, atag);
         exit(1);
     }
     else if (tagLen > 0 && strcmp(tag, ALL_TAG_STR) != 0) {
         fprintf(stderr, "%s:%d: warning: Tag \"%s\" was added to the list of standards because it was not declared at beginning of the alias table.\n",
             path, lineNum, atag);
     }
     /* add the tag to the tag table */
     tags[tagCount].tag = GET_TAG_NUM(atag);
     /* The aliasList should be set to 0's already */
     return tagCount++;
 }
 /*static void
 addTaggedAlias(uint16_t tag, const char *alias, uint16_t converter) {
     tags[tag].aliases[converter] = alias;
 }
 */
 static void
 addOfficialTaggedStandards(char *line, int32_t lineLen) {
     char *atag;
     char *endTagExp;
     char *tag;
     static const char WHITESPACE[] = " \t";
     if (tagCount > UCNV_NUM_RESERVED_TAGS) {
         fprintf(stderr, "%s:%d: error: official tags already added\n", path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     tag = strchr(line, '{');
     if (tag == NULL) {
         /* Why were we called? */
         fprintf(stderr, "%s:%d: error: Missing start of tag group\n", path, lineNum);
         exit(U_PARSE_ERROR);
     }
     tag++;
     endTagExp = strchr(tag, '}');
     if (endTagExp == NULL) {
         fprintf(stderr, "%s:%d: error: Missing end of tag group\n", path, lineNum);
         exit(U_PARSE_ERROR);
     }
     endTagExp[0] = 0;
     tag = strtok(tag, WHITESPACE);
     while (tag != NULL) {
 /*        printf("Adding original tag \"%s\"\n", tag);*/
         /* allocate a new entry in the tag table */
         atag = allocString(&tagBlock, tag, -1);
         /* add the tag to the tag table */
         tags[tagCount++].tag = (uint16_t)((atag - tagStore) >> 1);
         /* The aliasList should already be set to 0's */
         /* Get next tag */
         tag = strtok(NULL, WHITESPACE);
     }
 }
 static uint16_t
 addToKnownAliases(const char *alias) {
 /*    uint32_t idx; */
     /* strict matching */
 /*    for (idx = 0; idx < knownAliasesCount; idx++) {
         uint16_t num = GET_ALIAS_NUM(alias);
         if (knownAliases[idx] != num
             && uprv_strcmp(alias, GET_ALIAS_STR(knownAliases[idx])) == 0)
         {
             fprintf(stderr, "%s:%d: warning: duplicate alias %s and %s found\n", path,
                 lineNum, alias, GET_ALIAS_STR(knownAliases[idx]));
             duplicateKnownAliasesCount++;
             break;
         }
         else if (knownAliases[idx] != num
             && ucnv_compareNames(alias, GET_ALIAS_STR(knownAliases[idx])) == 0)
         {
             if (verbose) {
                 fprintf(stderr, "%s:%d: information: duplicate alias %s and %s found\n", path,
                     lineNum, alias, GET_ALIAS_STR(knownAliases[idx]));
             }
             duplicateKnownAliasesCount++;
             break;
         }
     }
 */
     if (knownAliasesCount >= MAX_ALIAS_COUNT) {
         fprintf(stderr, "%s:%d: warning: Too many aliases defined for all converters\n",
             path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     /* TODO: We could try to unlist exact duplicates. */
     return knownAliases[knownAliasesCount++] = GET_ALIAS_NUM(alias);
 }
 /*
 @param standard When standard is 0, then it's the "empty" tag.
 */
 static uint16_t
 addAlias(const char *alias, uint16_t standard, uint16_t converter, UBool defaultName) {
     uint32_t idx, idx2;
     UBool startEmptyWithoutDefault = FALSE;
     AliasList *aliasList;
     if(standard>=MAX_TAG_COUNT) {
         fprintf(stderr, "%s:%d: error: too many standard tags\n", path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     if(converter>=MAX_CONV_COUNT) {
         fprintf(stderr, "%s:%d: error: too many converter names\n", path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     aliasList = &tags[standard].aliasList[converter];
     if (strchr(alias, '}')) {
         fprintf(stderr, "%s:%d: error: unmatched } found\n", path,
             lineNum);
     }
     if(aliasList->aliasCount + 1 >= MAX_TC_ALIAS_COUNT) {
         fprintf(stderr, "%s:%d: error: too many aliases for alias %s and converter %s\n", path,
             lineNum, alias, GET_ALIAS_STR(converters[converter].converter));
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     /* Show this warning only once. All aliases are added to the "ALL" tag. */
     if (standard == ALL_TAG_NUM && GET_ALIAS_STR(converters[converter].converter) != alias) {
         /* Normally these option values are parsed at runtime, and they can
            be discarded when the alias is a default converter. Options should
            only be on a converter and not an alias. */
         if (uprv_strchr(alias, UCNV_OPTION_SEP_CHAR) != 0)
         {
             fprintf(stderr, "warning(line %d): alias %s contains a \""UCNV_OPTION_SEP_STRING"\". Options are parsed at run-time and do not need to be in the alias table.\n",
                 lineNum, alias);
         }
         if (uprv_strchr(alias, UCNV_VALUE_SEP_CHAR) != 0)
         {
             fprintf(stderr, "warning(line %d): alias %s contains an \""UCNV_VALUE_SEP_STRING"\". Options are parsed at run-time and do not need to be in the alias table.\n",
                 lineNum, alias);
         }
     }
     if (standard != ALL_TAG_NUM) {
         /* Check for duplicate aliases for this tag on all converters */
         for (idx = 0; idx < converterCount; idx++) {
             for (idx2 = 0; idx2 < tags[standard].aliasList[idx].aliasCount; idx2++) {
                 uint16_t aliasNum = tags[standard].aliasList[idx].aliases[idx2];
                 if (aliasNum
                     && ucnv_compareNames(alias, GET_ALIAS_STR(aliasNum)) == 0)
                 {
                     if (idx == converter) {
                         /*
                          * (alias, standard) duplicates are harmless if they map to the same converter.
                          * Only print a warning in verbose mode, or if the alias is a precise duplicate,
                          * not just a lenient-match duplicate.
                          */
                         if (verbose || 0 == uprv_strcmp(alias, GET_ALIAS_STR(aliasNum))) {
                             fprintf(stderr, "%s:%d: warning: duplicate aliases %s and %s found for standard %s and converter %s\n", path,
                                 lineNum, alias, GET_ALIAS_STR(aliasNum),
                                 GET_TAG_STR(tags[standard].tag),
                                 GET_ALIAS_STR(converters[converter].converter));
                         }
                     } else {
                         fprintf(stderr, "%s:%d: warning: duplicate aliases %s and %s found for standard tag %s between converter %s and converter %s\n", path,
                             lineNum, alias, GET_ALIAS_STR(aliasNum),
                             GET_TAG_STR(tags[standard].tag),
                             GET_ALIAS_STR(converters[converter].converter),
                             GET_ALIAS_STR(converters[idx].converter));
                     }
                     break;
                 }
             }
         }
         /* Check for duplicate default aliases for this converter on all tags */
         /* It's okay to have multiple standards prefer the same name */
 /*        if (verbose && !dupFound) {
             for (idx = 0; idx < tagCount; idx++) {
                 if (tags[idx].aliasList[converter].aliases) {
                     uint16_t aliasNum = tags[idx].aliasList[converter].aliases[0];
                     if (aliasNum
                         && ucnv_compareNames(alias, GET_ALIAS_STR(aliasNum)) == 0)
                     {
                         fprintf(stderr, "%s:%d: warning: duplicate alias %s found for converter %s and standard tag %s\n", path,
                             lineNum, alias, GET_ALIAS_STR(converters[converter].converter), GET_TAG_STR(tags[standard].tag));
                         break;
                     }
                 }
             }
         }*/
     }
     if (aliasList->aliasCount <= 0) {
         aliasList->aliasCount++;
         startEmptyWithoutDefault = TRUE;
     }
     aliasList->aliases = (uint16_t *)uprv_realloc(aliasList->aliases, (aliasList->aliasCount + 1) * sizeof(aliasList->aliases[0]));
     if (startEmptyWithoutDefault) {
         aliasList->aliases[0] = 0;
     }
     if (defaultName) {
         if (aliasList->aliases[0] != 0) {
             fprintf(stderr, "%s:%d: error: Alias %s and %s cannot both be the default alias for standard tag %s and converter %s\n", path,
                 lineNum,
                 alias,
                 GET_ALIAS_STR(aliasList->aliases[0]),
                 GET_TAG_STR(tags[standard].tag),
                 GET_ALIAS_STR(converters[converter].converter));
             exit(U_PARSE_ERROR);
         }
         aliasList->aliases[0] = GET_ALIAS_NUM(alias);
     } else {
         aliasList->aliases[aliasList->aliasCount++] = GET_ALIAS_NUM(alias);
     }
 /*    aliasList->converter = converter;*/
     converters[converter].totalAliasCount++; /* One more to the column */
     tags[standard].totalAliasCount++; /* One more to the row */
     return aliasList->aliasCount;
 }
 static uint16_t
 addConverter(const char *converter) {
     uint32_t idx;
     if(converterCount>=MAX_CONV_COUNT) {
         fprintf(stderr, "%s:%d: error: too many converters\n", path, lineNum);
         exit(U_BUFFER_OVERFLOW_ERROR);
     }
     for (idx = 0; idx < converterCount; idx++) {
         if (ucnv_compareNames(converter, GET_ALIAS_STR(converters[idx].converter)) == 0) {
             fprintf(stderr, "%s:%d: error: duplicate converter %s found!\n", path, lineNum, converter);
             exit(U_PARSE_ERROR);
             break;
         }
     }
     converters[converterCount].converter = GET_ALIAS_NUM(converter);
     converters[converterCount].totalAliasCount = 0;
     return converterCount++;
 }
 /* resolve this alias based on the prioritization of the standard tags. */
 static void
 resolveAliasToConverter(uint16_t alias, uint16_t *tagNum, uint16_t *converterNum) {
     uint16_t idx, idx2, idx3;
     for (idx = UCNV_NUM_RESERVED_TAGS; idx < tagCount; idx++) {
         for (idx2 = 0; idx2 < converterCount; idx2++) {
             for (idx3 = 0; idx3 < tags[idx].aliasList[idx2].aliasCount; idx3++) {
                 uint16_t aliasNum = tags[idx].aliasList[idx2].aliases[idx3];
                 if (aliasNum == alias) {
                     *tagNum = idx;
                     *converterNum = idx2;
                     return;
                 }
             }
         }
     }
     /* Do the leftovers last, just in case */
     /* There is no need to do the ALL tag */
     idx = 0;
     for (idx2 = 0; idx2 < converterCount; idx2++) {
         for (idx3 = 0; idx3 < tags[idx].aliasList[idx2].aliasCount; idx3++) {
             uint16_t aliasNum = tags[idx].aliasList[idx2].aliases[idx3];
             if (aliasNum == alias) {
                 *tagNum = idx;
                 *converterNum = idx2;
                 return;
             }
         }
     }
     *tagNum = UINT16_MAX;
     *converterNum = UINT16_MAX;
     fprintf(stderr, "%s: warning: alias %s not found\n",
         path,
         GET_ALIAS_STR(alias));
     return;
 }
 /* The knownAliases should be sorted before calling this function */
 static uint32_t
 resolveAliases(uint16_t *uniqueAliasArr, uint16_t *uniqueAliasToConverterArr, uint16_t aliasOffset) {
     uint32_t uniqueAliasIdx = 0;
     uint32_t idx;
     uint16_t currTagNum, oldTagNum;
     uint16_t currConvNum, oldConvNum;
     const char *lastName;
     resolveAliasToConverter(knownAliases[0], &oldTagNum, &currConvNum);
     uniqueAliasToConverterArr[uniqueAliasIdx] = currConvNum;
     oldConvNum = currConvNum;
     uniqueAliasArr[uniqueAliasIdx] = knownAliases[0] + aliasOffset;
     uniqueAliasIdx++;
     lastName = GET_ALIAS_STR(knownAliases[0]);
     for (idx = 1; idx < knownAliasesCount; idx++) {
         resolveAliasToConverter(knownAliases[idx], &currTagNum, &currConvNum);
         if (ucnv_compareNames(lastName, GET_ALIAS_STR(knownAliases[idx])) == 0) {
             /* duplicate found */
             if ((currTagNum < oldTagNum && currTagNum >= UCNV_NUM_RESERVED_TAGS)
                 || oldTagNum == 0) {
                 oldTagNum = currTagNum;
                 uniqueAliasToConverterArr[uniqueAliasIdx - 1] = currConvNum;
                 uniqueAliasArr[uniqueAliasIdx - 1] = knownAliases[idx] + aliasOffset;
                 if (verbose) {
                     printf("using %s instead of %s -> %s",
                         GET_ALIAS_STR(knownAliases[idx]),
                         lastName,
                         GET_ALIAS_STR(converters[currConvNum].converter));
                     if (oldConvNum != currConvNum) {
                         printf(" (alias conflict)");
                     }
                     puts("");
                 }
             }
             else {
                 /* else ignore it */
                 if (verbose) {
                     printf("folding %s into %s -> %s",
                         GET_ALIAS_STR(knownAliases[idx]),
                         lastName,
                         GET_ALIAS_STR(converters[oldConvNum].converter));
                     if (oldConvNum != currConvNum) {
                         printf(" (alias conflict)");
                     }
                     puts("");
                 }
             }
             if (oldConvNum != currConvNum) {
                 uniqueAliasToConverterArr[uniqueAliasIdx - 1] |= UCNV_AMBIGUOUS_ALIAS_MAP_BIT;
             }
         }
         else {
             uniqueAliasToConverterArr[uniqueAliasIdx] = currConvNum;
             oldConvNum = currConvNum;
             uniqueAliasArr[uniqueAliasIdx] = knownAliases[idx] + aliasOffset;
             uniqueAliasIdx++;
             lastName = GET_ALIAS_STR(knownAliases[idx]);
             oldTagNum = currTagNum;
             /*printf("%s -> %s\n", GET_ALIAS_STR(knownAliases[idx]), GET_ALIAS_STR(converters[currConvNum].converter));*/
         }
         if (uprv_strchr(GET_ALIAS_STR(converters[currConvNum].converter), UCNV_OPTION_SEP_CHAR) != NULL) {
             uniqueAliasToConverterArr[uniqueAliasIdx-1] |= UCNV_CONTAINS_OPTION_BIT;
         }
     }
     return uniqueAliasIdx;
 }
 static void
 createOneAliasList(uint16_t *aliasArrLists, uint32_t tag, uint32_t converter, uint16_t offset) {
     uint32_t aliasNum;
     AliasList *aliasList = &tags[tag].aliasList[converter];
     if (aliasList->aliasCount == 0) {
         aliasArrLists[tag*converterCount + converter] = 0;
     }
     else {
         aliasLists[aliasListsSize++] = aliasList->aliasCount;
         /* write into the array area a 1's based index. */
         aliasArrLists[tag*converterCount + converter] = aliasListsSize;
 /*        printf("tag %s converter %s\n",
             GET_TAG_STR(tags[tag].tag),
             GET_ALIAS_STR(converters[converter].converter));*/
         for (aliasNum = 0; aliasNum < aliasList->aliasCount; aliasNum++) {
             uint16_t value;
 /*            printf("   %s\n",
                 GET_ALIAS_STR(aliasList->aliases[aliasNum]));*/
             if (aliasList->aliases[aliasNum]) {
                 value = aliasList->aliases[aliasNum] + offset;
             } else {
                 value = 0;
                 if (tag != 0) { /* Only show the warning when it's not the leftover tag. */
                     fprintf(stderr, "%s: warning: tag %s does not have a default alias for %s\n",
                             path,
                             GET_TAG_STR(tags[tag].tag),
                             GET_ALIAS_STR(converters[converter].converter));
                 }
             }
             aliasLists[aliasListsSize++] = value;
             if (aliasListsSize >= MAX_LIST_SIZE) {
                 fprintf(stderr, "%s: error: Too many alias lists\n", path);
                 exit(U_BUFFER_OVERFLOW_ERROR);
             }
         }
     }
 }
 static void
 createNormalizedAliasStrings(char *normalizedStrings, const char *origStringBlock, int32_t stringBlockLength) {
     int32_t currStrLen;
     uprv_memcpy(normalizedStrings, origStringBlock, stringBlockLength);
     while ((currStrLen = (int32_t)uprv_strlen(origStringBlock)) < stringBlockLength) {
         int32_t currStrSize = currStrLen + 1;
         if (currStrLen > 0) {
             int32_t normStrLen;
             ucnv_io_stripForCompare(normalizedStrings, origStringBlock);
             normStrLen = uprv_strlen(normalizedStrings);
             if (normStrLen > 0) {
                 uprv_memset(normalizedStrings + normStrLen, 0, currStrSize - normStrLen);
             }
         }
         stringBlockLength -= currStrSize;
         normalizedStrings += currStrSize;
         origStringBlock += currStrSize;
     }
 }
 static void
 writeAliasTable(UNewDataMemory *out) {
     uint32_t i, j;
     uint32_t uniqueAliasesSize;
     uint16_t aliasOffset = (uint16_t)(tagBlock.top/sizeof(uint16_t));
     uint16_t *aliasArrLists = (uint16_t *)uprv_malloc(tagCount * converterCount * sizeof(uint16_t));
     uint16_t *uniqueAliases = (uint16_t *)uprv_malloc(knownAliasesCount * sizeof(uint16_t));
     uint16_t *uniqueAliasesToConverter = (uint16_t *)uprv_malloc(knownAliasesCount * sizeof(uint16_t));
     qsort(knownAliases, knownAliasesCount, sizeof(knownAliases[0]), compareAliases);
     uniqueAliasesSize = resolveAliases(uniqueAliases, uniqueAliasesToConverter, aliasOffset);
     /* Array index starts at 1. aliasLists[0] is the size of the lists section. */
     aliasListsSize = 0;
     /* write the offsets of all the aliases lists in a 2D array, and create the lists. */
     for (i = 0; i < tagCount; ++i) {
         for (j = 0; j < converterCount; ++j) {
             createOneAliasList(aliasArrLists, i, j, aliasOffset);
         }
     }
     /* Write the size of the TOC */
     if (tableOptions.stringNormalizationType == UCNV_IO_UNNORMALIZED) {
         udata_write32(out, 8);
     }
     else {
         udata_write32(out, 9);
     }
     /* Write the sizes of each section */
     /* All sizes are the number of uint16_t units, not bytes */
     udata_write32(out, converterCount);
     udata_write32(out, tagCount);
     udata_write32(out, uniqueAliasesSize);  /* list of aliases */
     udata_write32(out, uniqueAliasesSize);  /* The preresolved form of mapping an untagged the alias to a converter */
     udata_write32(out, tagCount * converterCount);
     udata_write32(out, aliasListsSize + 1);
     udata_write32(out, sizeof(tableOptions) / sizeof(uint16_t));
     udata_write32(out, (tagBlock.top + stringBlock.top) / sizeof(uint16_t));
     if (tableOptions.stringNormalizationType != UCNV_IO_UNNORMALIZED) {
         udata_write32(out, (tagBlock.top + stringBlock.top) / sizeof(uint16_t));
     }
     /* write the table of converters */
     /* Think of this as the column headers */
     for(i=0; i<converterCount; ++i) {
         udata_write16(out, (uint16_t)(converters[i].converter + aliasOffset));
     }
     /* write the table of tags */
     /* Think of this as the row headers */
     for(i=UCNV_NUM_RESERVED_TAGS; i<tagCount; ++i) {
         udata_write16(out, tags[i].tag);
     }
     /* The empty tag is considered the leftover list, and put that at the end of the priority list. */
     udata_write16(out, tags[EMPTY_TAG_NUM].tag);
     udata_write16(out, tags[ALL_TAG_NUM].tag);
     /* Write the unique list of aliases */
     udata_writeBlock(out, uniqueAliases, uniqueAliasesSize * sizeof(uint16_t));
     /* Write the unique list of aliases */
     udata_writeBlock(out, uniqueAliasesToConverter, uniqueAliasesSize * sizeof(uint16_t));
     /* Write the array to the lists */
     udata_writeBlock(out, (const void *)(aliasArrLists + (2*converterCount)), (((tagCount - 2) * converterCount) * sizeof(uint16_t)));
     /* Now write the leftover part of the array for the EMPTY and ALL lists */
     udata_writeBlock(out, (const void *)aliasArrLists, (2 * converterCount * sizeof(uint16_t)));
     /* Offset the next array to make the index start at 1. */
     udata_write16(out, 0xDEAD);
     /* Write the lists */
     udata_writeBlock(out, (const void *)aliasLists, aliasListsSize * sizeof(uint16_t));
     /* Write any options for the alias table. */
     udata_writeBlock(out, (const void *)&tableOptions, sizeof(tableOptions));
     /* write the tags strings */
     udata_writeString(out, tagBlock.store, tagBlock.top);
     /* write the aliases strings */
     udata_writeString(out, stringBlock.store, stringBlock.top);
     /* write the normalized aliases strings */
     if (tableOptions.stringNormalizationType != UCNV_IO_UNNORMALIZED) {
         char *normalizedStrings = (char *)uprv_malloc(tagBlock.top + stringBlock.top);
         createNormalizedAliasStrings(normalizedStrings, tagBlock.store, tagBlock.top);
         createNormalizedAliasStrings(normalizedStrings + tagBlock.top, stringBlock.store, stringBlock.top);
         /* Write out the complete normalized array. */
         udata_writeString(out, normalizedStrings, tagBlock.top + stringBlock.top);
         uprv_free(normalizedStrings);
     }
     uprv_free(uniqueAliasesToConverter);
     uprv_free(uniqueAliases);
     uprv_free(aliasArrLists);
 }
 static char *
 allocString(StringBlock *block, const char *s, int32_t length) {
     uint32_t top;
     char *p;
     if(length<0) {
         length=(int32_t)uprv_strlen(s);
     }
     /*
      * add 1 for the terminating NUL
      * and round up (+1 &~1)
      * to keep the addresses on a 16-bit boundary
      */
     top=block->top + (uint32_t)((length + 1 + 1) & ~1);
     if(top >= block->max) {
         fprintf(stderr, "%s:%d: error: out of memory\n", path, lineNum);
         exit(U_MEMORY_ALLOCATION_ERROR);
     }
     /* get the pointer and copy the string */
     p = block->store + block->top;
     uprv_memcpy(p, s, length);
     p[length] = 0; /* NUL-terminate it */
     if((length & 1) == 0) {
         p[length + 1] = 0; /* set the padding byte */
     }
     /* check for invariant characters now that we have a NUL-terminated string for easy output */
     if(!uprv_isInvariantString(p, length)) {
         fprintf(stderr, "%s:%d: error: the name %s contains not just invariant characters\n", path, lineNum, p);
         exit(U_INVALID_TABLE_FORMAT);
     }
     block->top = top;
     return p;
 }
 static int
 compareAliases(const void *alias1, const void *alias2) {
     /* Names like IBM850 and ibm-850 need to be sorted together */
     int result = ucnv_compareNames(GET_ALIAS_STR(*(uint16_t*)alias1), GET_ALIAS_STR(*(uint16_t*)alias2));
     if (!result) {
         /* Sort the shortest first */
         return (int)uprv_strlen(GET_ALIAS_STR(*(uint16_t*)alias1)) - (int)uprv_strlen(GET_ALIAS_STR(*(uint16_t*)alias2));
     }
     return result;
 }
 /*
  * Hey, Emacs, please set the following:
  *
  * Local Variables:
  * indent-tabs-mode: nil
  * End:
  *
  */

The Tor Browser / annotate

intl/icu/source/tools/gencnval/gencnval.c@fc2d59ddac77 (annotated)

intl/icu/source/tools/gencnval/gencnval.c