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Diffstat (limited to 'intl/icu/source/tools/genrb/parse.cpp')
| -rw-r--r-- | intl/icu/source/tools/genrb/parse.cpp | 2079 |
1 files changed, 2079 insertions, 0 deletions
diff --git a/intl/icu/source/tools/genrb/parse.cpp b/intl/icu/source/tools/genrb/parse.cpp new file mode 100644 index 000000000..81a3bf597 --- /dev/null +++ b/intl/icu/source/tools/genrb/parse.cpp @@ -0,0 +1,2079 @@ +// Copyright (C) 2016 and later: Unicode, Inc. and others. +// License & terms of use: http://www.unicode.org/copyright.html +/* +******************************************************************************* +* +* Copyright (C) 1998-2015, International Business Machines +* Corporation and others. All Rights Reserved. +* +******************************************************************************* +* +* File parse.cpp +* +* Modification History: +* +* Date Name Description +* 05/26/99 stephen Creation. +* 02/25/00 weiv Overhaul to write udata +* 5/10/01 Ram removed ustdio dependency +* 06/10/2001 Dominic Ludlam <dom@recoil.org> Rewritten +******************************************************************************* +*/ + +// Safer use of UnicodeString. +#ifndef UNISTR_FROM_CHAR_EXPLICIT +# define UNISTR_FROM_CHAR_EXPLICIT explicit +#endif + +// Less important, but still a good idea. +#ifndef UNISTR_FROM_STRING_EXPLICIT +# define UNISTR_FROM_STRING_EXPLICIT explicit +#endif + +#include <assert.h> +#include "parse.h" +#include "errmsg.h" +#include "uhash.h" +#include "cmemory.h" +#include "cstring.h" +#include "uinvchar.h" +#include "read.h" +#include "ustr.h" +#include "reslist.h" +#include "rbt_pars.h" +#include "genrb.h" +#include "unicode/stringpiece.h" +#include "unicode/unistr.h" +#include "unicode/ustring.h" +#include "unicode/uscript.h" +#include "unicode/utf16.h" +#include "unicode/putil.h" +#include "charstr.h" +#include "collationbuilder.h" +#include "collationdata.h" +#include "collationdatareader.h" +#include "collationdatawriter.h" +#include "collationfastlatinbuilder.h" +#include "collationinfo.h" +#include "collationroot.h" +#include "collationruleparser.h" +#include "collationtailoring.h" +#include <stdio.h> + +/* Number of tokens to read ahead of the current stream position */ +#define MAX_LOOKAHEAD 3 + +#define CR 0x000D +#define LF 0x000A +#define SPACE 0x0020 +#define TAB 0x0009 +#define ESCAPE 0x005C +#define HASH 0x0023 +#define QUOTE 0x0027 +#define ZERO 0x0030 +#define STARTCOMMAND 0x005B +#define ENDCOMMAND 0x005D +#define OPENSQBRACKET 0x005B +#define CLOSESQBRACKET 0x005D + +using icu::CharString; +using icu::LocalMemory; +using icu::LocalPointer; +using icu::LocalUCHARBUFPointer; +using icu::StringPiece; +using icu::UnicodeString; + +struct Lookahead +{ + enum ETokenType type; + struct UString value; + struct UString comment; + uint32_t line; +}; + +/* keep in sync with token defines in read.h */ +const char *tokenNames[TOK_TOKEN_COUNT] = +{ + "string", /* A string token, such as "MonthNames" */ + "'{'", /* An opening brace character */ + "'}'", /* A closing brace character */ + "','", /* A comma */ + "':'", /* A colon */ + + "<end of file>", /* End of the file has been reached successfully */ + "<end of line>" +}; + +/* Just to store "TRUE" */ +//static const UChar trueValue[] = {0x0054, 0x0052, 0x0055, 0x0045, 0x0000}; + +typedef struct { + struct Lookahead lookahead[MAX_LOOKAHEAD + 1]; + uint32_t lookaheadPosition; + UCHARBUF *buffer; + struct SRBRoot *bundle; + const char *inputdir; + uint32_t inputdirLength; + const char *outputdir; + uint32_t outputdirLength; + const char *filename; + UBool makeBinaryCollation; + UBool omitCollationRules; +} ParseState; + +typedef struct SResource * +ParseResourceFunction(ParseState* state, char *tag, uint32_t startline, const struct UString* comment, UErrorCode *status); + +static struct SResource *parseResource(ParseState* state, char *tag, const struct UString *comment, UErrorCode *status); + +/* The nature of the lookahead buffer: + There are MAX_LOOKAHEAD + 1 slots, used as a circular buffer. This provides + MAX_LOOKAHEAD lookahead tokens and a slot for the current token and value. + When getToken is called, the current pointer is moved to the next slot and the + old slot is filled with the next token from the reader by calling getNextToken. + The token values are stored in the slot, which means that token values don't + survive a call to getToken, ie. + + UString *value; + + getToken(&value, NULL, status); + getToken(NULL, NULL, status); bad - value is now a different string +*/ +static void +initLookahead(ParseState* state, UCHARBUF *buf, UErrorCode *status) +{ + static uint32_t initTypeStrings = 0; + uint32_t i; + + if (!initTypeStrings) + { + initTypeStrings = 1; + } + + state->lookaheadPosition = 0; + state->buffer = buf; + + resetLineNumber(); + + for (i = 0; i < MAX_LOOKAHEAD; i++) + { + state->lookahead[i].type = getNextToken(state->buffer, &state->lookahead[i].value, &state->lookahead[i].line, &state->lookahead[i].comment, status); + if (U_FAILURE(*status)) + { + return; + } + } + + *status = U_ZERO_ERROR; +} + +static void +cleanupLookahead(ParseState* state) +{ + uint32_t i; + for (i = 0; i <= MAX_LOOKAHEAD; i++) + { + ustr_deinit(&state->lookahead[i].value); + ustr_deinit(&state->lookahead[i].comment); + } + +} + +static enum ETokenType +getToken(ParseState* state, struct UString **tokenValue, struct UString* comment, uint32_t *linenumber, UErrorCode *status) +{ + enum ETokenType result; + uint32_t i; + + result = state->lookahead[state->lookaheadPosition].type; + + if (tokenValue != NULL) + { + *tokenValue = &state->lookahead[state->lookaheadPosition].value; + } + + if (linenumber != NULL) + { + *linenumber = state->lookahead[state->lookaheadPosition].line; + } + + if (comment != NULL) + { + ustr_cpy(comment, &(state->lookahead[state->lookaheadPosition].comment), status); + } + + i = (state->lookaheadPosition + MAX_LOOKAHEAD) % (MAX_LOOKAHEAD + 1); + state->lookaheadPosition = (state->lookaheadPosition + 1) % (MAX_LOOKAHEAD + 1); + ustr_setlen(&state->lookahead[i].comment, 0, status); + ustr_setlen(&state->lookahead[i].value, 0, status); + state->lookahead[i].type = getNextToken(state->buffer, &state->lookahead[i].value, &state->lookahead[i].line, &state->lookahead[i].comment, status); + + /* printf("getToken, returning %s\n", tokenNames[result]); */ + + return result; +} + +static enum ETokenType +peekToken(ParseState* state, uint32_t lookaheadCount, struct UString **tokenValue, uint32_t *linenumber, struct UString *comment, UErrorCode *status) +{ + uint32_t i = (state->lookaheadPosition + lookaheadCount) % (MAX_LOOKAHEAD + 1); + + if (U_FAILURE(*status)) + { + return TOK_ERROR; + } + + if (lookaheadCount >= MAX_LOOKAHEAD) + { + *status = U_INTERNAL_PROGRAM_ERROR; + return TOK_ERROR; + } + + if (tokenValue != NULL) + { + *tokenValue = &state->lookahead[i].value; + } + + if (linenumber != NULL) + { + *linenumber = state->lookahead[i].line; + } + + if(comment != NULL){ + ustr_cpy(comment, &(state->lookahead[state->lookaheadPosition].comment), status); + } + + return state->lookahead[i].type; +} + +static void +expect(ParseState* state, enum ETokenType expectedToken, struct UString **tokenValue, struct UString *comment, uint32_t *linenumber, UErrorCode *status) +{ + uint32_t line; + + enum ETokenType token = getToken(state, tokenValue, comment, &line, status); + + if (linenumber != NULL) + { + *linenumber = line; + } + + if (U_FAILURE(*status)) + { + return; + } + + if (token != expectedToken) + { + *status = U_INVALID_FORMAT_ERROR; + error(line, "expecting %s, got %s", tokenNames[expectedToken], tokenNames[token]); + } + else + { + *status = U_ZERO_ERROR; + } +} + +static char *getInvariantString(ParseState* state, uint32_t *line, struct UString *comment, UErrorCode *status) +{ + struct UString *tokenValue; + char *result; + uint32_t count; + + expect(state, TOK_STRING, &tokenValue, comment, line, status); + + if (U_FAILURE(*status)) + { + return NULL; + } + + count = u_strlen(tokenValue->fChars); + if(!uprv_isInvariantUString(tokenValue->fChars, count)) { + *status = U_INVALID_FORMAT_ERROR; + error(*line, "invariant characters required for table keys, binary data, etc."); + return NULL; + } + + result = static_cast<char *>(uprv_malloc(count+1)); + + if (result == NULL) + { + *status = U_MEMORY_ALLOCATION_ERROR; + return NULL; + } + + u_UCharsToChars(tokenValue->fChars, result, count+1); + return result; +} + +static struct SResource * +parseUCARules(ParseState* state, char *tag, uint32_t startline, const struct UString* /*comment*/, UErrorCode *status) +{ + struct SResource *result = NULL; + struct UString *tokenValue; + FileStream *file = NULL; + char filename[256] = { '\0' }; + char cs[128] = { '\0' }; + uint32_t line; + UBool quoted = FALSE; + UCHARBUF *ucbuf=NULL; + UChar32 c = 0; + const char* cp = NULL; + UChar *pTarget = NULL; + UChar *target = NULL; + UChar *targetLimit = NULL; + int32_t size = 0; + + expect(state, TOK_STRING, &tokenValue, NULL, &line, status); + + if(isVerbose()){ + printf(" %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + if (U_FAILURE(*status)) + { + return NULL; + } + /* make the filename including the directory */ + if (state->inputdir != NULL) + { + uprv_strcat(filename, state->inputdir); + + if (state->inputdir[state->inputdirLength - 1] != U_FILE_SEP_CHAR) + { + uprv_strcat(filename, U_FILE_SEP_STRING); + } + } + + u_UCharsToChars(tokenValue->fChars, cs, tokenValue->fLength); + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + return NULL; + } + uprv_strcat(filename, cs); + + if(state->omitCollationRules) { + return res_none(); + } + + ucbuf = ucbuf_open(filename, &cp, getShowWarning(),FALSE, status); + + if (U_FAILURE(*status)) { + error(line, "An error occured while opening the input file %s\n", filename); + return NULL; + } + + /* We allocate more space than actually required + * since the actual size needed for storing UChars + * is not known in UTF-8 byte stream + */ + size = ucbuf_size(ucbuf) + 1; + pTarget = (UChar*) uprv_malloc(U_SIZEOF_UCHAR * size); + uprv_memset(pTarget, 0, size*U_SIZEOF_UCHAR); + target = pTarget; + targetLimit = pTarget+size; + + /* read the rules into the buffer */ + while (target < targetLimit) + { + c = ucbuf_getc(ucbuf, status); + if(c == QUOTE) { + quoted = (UBool)!quoted; + } + /* weiv (06/26/2002): adding the following: + * - preserving spaces in commands [...] + * - # comments until the end of line + */ + if (c == STARTCOMMAND && !quoted) + { + /* preserve commands + * closing bracket will be handled by the + * append at the end of the loop + */ + while(c != ENDCOMMAND) { + U_APPEND_CHAR32_ONLY(c, target); + c = ucbuf_getc(ucbuf, status); + } + } + else if (c == HASH && !quoted) { + /* skip comments */ + while(c != CR && c != LF) { + c = ucbuf_getc(ucbuf, status); + } + continue; + } + else if (c == ESCAPE) + { + c = unescape(ucbuf, status); + + if (c == (UChar32)U_ERR) + { + uprv_free(pTarget); + T_FileStream_close(file); + return NULL; + } + } + else if (!quoted && (c == SPACE || c == TAB || c == CR || c == LF)) + { + /* ignore spaces carriage returns + * and line feed unless in the form \uXXXX + */ + continue; + } + + /* Append UChar * after dissembling if c > 0xffff*/ + if (c != (UChar32)U_EOF) + { + U_APPEND_CHAR32_ONLY(c, target); + } + else + { + break; + } + } + + /* terminate the string */ + if(target < targetLimit){ + *target = 0x0000; + } + + result = string_open(state->bundle, tag, pTarget, (int32_t)(target - pTarget), NULL, status); + + + ucbuf_close(ucbuf); + uprv_free(pTarget); + T_FileStream_close(file); + + return result; +} + +static struct SResource * +parseTransliterator(ParseState* state, char *tag, uint32_t startline, const struct UString* /*comment*/, UErrorCode *status) +{ + struct SResource *result = NULL; + struct UString *tokenValue; + FileStream *file = NULL; + char filename[256] = { '\0' }; + char cs[128] = { '\0' }; + uint32_t line; + UCHARBUF *ucbuf=NULL; + const char* cp = NULL; + UChar *pTarget = NULL; + const UChar *pSource = NULL; + int32_t size = 0; + + expect(state, TOK_STRING, &tokenValue, NULL, &line, status); + + if(isVerbose()){ + printf(" %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + if (U_FAILURE(*status)) + { + return NULL; + } + /* make the filename including the directory */ + if (state->inputdir != NULL) + { + uprv_strcat(filename, state->inputdir); + + if (state->inputdir[state->inputdirLength - 1] != U_FILE_SEP_CHAR) + { + uprv_strcat(filename, U_FILE_SEP_STRING); + } + } + + u_UCharsToChars(tokenValue->fChars, cs, tokenValue->fLength); + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + return NULL; + } + uprv_strcat(filename, cs); + + + ucbuf = ucbuf_open(filename, &cp, getShowWarning(),FALSE, status); + + if (U_FAILURE(*status)) { + error(line, "An error occured while opening the input file %s\n", filename); + return NULL; + } + + /* We allocate more space than actually required + * since the actual size needed for storing UChars + * is not known in UTF-8 byte stream + */ + pSource = ucbuf_getBuffer(ucbuf, &size, status); + pTarget = (UChar*) uprv_malloc(U_SIZEOF_UCHAR * (size + 1)); + uprv_memset(pTarget, 0, size*U_SIZEOF_UCHAR); + +#if !UCONFIG_NO_TRANSLITERATION + size = utrans_stripRules(pSource, size, pTarget, status); +#else + size = 0; + fprintf(stderr, " Warning: writing empty transliteration data ( UCONFIG_NO_TRANSLITERATION ) \n"); +#endif + result = string_open(state->bundle, tag, pTarget, size, NULL, status); + + ucbuf_close(ucbuf); + uprv_free(pTarget); + T_FileStream_close(file); + + return result; +} +static ArrayResource* dependencyArray = NULL; + +static struct SResource * +parseDependency(ParseState* state, char *tag, uint32_t startline, const struct UString* comment, UErrorCode *status) +{ + struct SResource *result = NULL; + struct SResource *elem = NULL; + struct UString *tokenValue; + uint32_t line; + char filename[256] = { '\0' }; + char cs[128] = { '\0' }; + + expect(state, TOK_STRING, &tokenValue, NULL, &line, status); + + if(isVerbose()){ + printf(" %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + if (U_FAILURE(*status)) + { + return NULL; + } + /* make the filename including the directory */ + if (state->outputdir != NULL) + { + uprv_strcat(filename, state->outputdir); + + if (state->outputdir[state->outputdirLength - 1] != U_FILE_SEP_CHAR) + { + uprv_strcat(filename, U_FILE_SEP_STRING); + } + } + + u_UCharsToChars(tokenValue->fChars, cs, tokenValue->fLength); + + if (U_FAILURE(*status)) + { + return NULL; + } + uprv_strcat(filename, cs); + if(!T_FileStream_file_exists(filename)){ + if(isStrict()){ + error(line, "The dependency file %s does not exist. Please make sure it exists.\n",filename); + }else{ + warning(line, "The dependency file %s does not exist. Please make sure it exists.\n",filename); + } + } + if(dependencyArray==NULL){ + dependencyArray = array_open(state->bundle, "%%DEPENDENCY", NULL, status); + } + if(tag!=NULL){ + result = string_open(state->bundle, tag, tokenValue->fChars, tokenValue->fLength, comment, status); + } + elem = string_open(state->bundle, NULL, tokenValue->fChars, tokenValue->fLength, comment, status); + + dependencyArray->add(elem); + + if (U_FAILURE(*status)) + { + return NULL; + } + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + return result; +} +static struct SResource * +parseString(ParseState* state, char *tag, uint32_t startline, const struct UString* comment, UErrorCode *status) +{ + struct UString *tokenValue; + struct SResource *result = NULL; + +/* if (tag != NULL && uprv_strcmp(tag, "%%UCARULES") == 0) + { + return parseUCARules(tag, startline, status); + }*/ + if(isVerbose()){ + printf(" string %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + expect(state, TOK_STRING, &tokenValue, NULL, NULL, status); + + if (U_SUCCESS(*status)) + { + /* create the string now - tokenValue doesn't survive a call to getToken (and therefore + doesn't survive expect either) */ + + result = string_open(state->bundle, tag, tokenValue->fChars, tokenValue->fLength, comment, status); + if(U_SUCCESS(*status) && result) { + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + } + } + + return result; +} + +static struct SResource * +parseAlias(ParseState* state, char *tag, uint32_t startline, const struct UString *comment, UErrorCode *status) +{ + struct UString *tokenValue; + struct SResource *result = NULL; + + expect(state, TOK_STRING, &tokenValue, NULL, NULL, status); + + if(isVerbose()){ + printf(" alias %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + if (U_SUCCESS(*status)) + { + /* create the string now - tokenValue doesn't survive a call to getToken (and therefore + doesn't survive expect either) */ + + result = alias_open(state->bundle, tag, tokenValue->fChars, tokenValue->fLength, comment, status); + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + } + + return result; +} + +#if !UCONFIG_NO_COLLATION + +namespace { + +static struct SResource* resLookup(struct SResource* res, const char* key){ + if (res == res_none() || !res->isTable()) { + return NULL; + } + + TableResource *list = static_cast<TableResource *>(res); + SResource *current = list->fFirst; + while (current != NULL) { + if (uprv_strcmp(((list->fRoot->fKeys) + (current->fKey)), key) == 0) { + return current; + } + current = current->fNext; + } + return NULL; +} + +class GenrbImporter : public icu::CollationRuleParser::Importer { +public: + GenrbImporter(const char *in, const char *out) : inputDir(in), outputDir(out) {} + virtual ~GenrbImporter(); + virtual void getRules( + const char *localeID, const char *collationType, + UnicodeString &rules, + const char *&errorReason, UErrorCode &errorCode); + +private: + const char *inputDir; + const char *outputDir; +}; + +GenrbImporter::~GenrbImporter() {} + +void +GenrbImporter::getRules( + const char *localeID, const char *collationType, + UnicodeString &rules, + const char *& /*errorReason*/, UErrorCode &errorCode) { + CharString filename(localeID, errorCode); + for(int32_t i = 0; i < filename.length(); i++){ + if(filename[i] == '-'){ + filename.data()[i] = '_'; + } + } + filename.append(".txt", errorCode); + if (U_FAILURE(errorCode)) { + return; + } + CharString inputDirBuf; + CharString openFileName; + if(inputDir == NULL) { + const char *filenameBegin = uprv_strrchr(filename.data(), U_FILE_SEP_CHAR); + if (filenameBegin != NULL) { + /* + * When a filename ../../../data/root.txt is specified, + * we presume that the input directory is ../../../data + * This is very important when the resource file includes + * another file, like UCARules.txt or thaidict.brk. + */ + StringPiece dir = filename.toStringPiece(); + const char *filenameLimit = filename.data() + filename.length(); + dir.remove_suffix((int32_t)(filenameLimit - filenameBegin)); + inputDirBuf.append(dir, errorCode); + inputDir = inputDirBuf.data(); + } + }else{ + int32_t dirlen = (int32_t)uprv_strlen(inputDir); + + if((filename[0] != U_FILE_SEP_CHAR) && (inputDir[dirlen-1] !='.')) { + /* + * append the input dir to openFileName if the first char in + * filename is not file separator char and the last char input directory is not '.'. + * This is to support : + * genrb -s. /home/icu/data + * genrb -s. icu/data + * The user cannot mix notations like + * genrb -s. /icu/data --- the absolute path specified. -s redundant + * user should use + * genrb -s. icu/data --- start from CWD and look in icu/data dir + */ + openFileName.append(inputDir, dirlen, errorCode); + if(inputDir[dirlen-1] != U_FILE_SEP_CHAR) { + openFileName.append(U_FILE_SEP_CHAR, errorCode); + } + } + } + openFileName.append(filename, errorCode); + if(U_FAILURE(errorCode)) { + return; + } + // printf("GenrbImporter::getRules(%s, %s) reads %s\n", localeID, collationType, openFileName.data()); + const char* cp = ""; + LocalUCHARBUFPointer ucbuf( + ucbuf_open(openFileName.data(), &cp, getShowWarning(), TRUE, &errorCode)); + if(errorCode == U_FILE_ACCESS_ERROR) { + fprintf(stderr, "couldn't open file %s\n", openFileName.data()); + return; + } + if (ucbuf.isNull() || U_FAILURE(errorCode)) { + fprintf(stderr, "An error occured processing file %s. Error: %s\n", openFileName.data(), u_errorName(errorCode)); + return; + } + + /* Parse the data into an SRBRoot */ + struct SRBRoot *data = + parse(ucbuf.getAlias(), inputDir, outputDir, filename.data(), FALSE, FALSE, &errorCode); + if (U_FAILURE(errorCode)) { + return; + } + + struct SResource *root = data->fRoot; + struct SResource *collations = resLookup(root, "collations"); + if (collations != NULL) { + struct SResource *collation = resLookup(collations, collationType); + if (collation != NULL) { + struct SResource *sequence = resLookup(collation, "Sequence"); + if (sequence != NULL && sequence->isString()) { + // No string pointer aliasing so that we need not hold onto the resource bundle. + StringResource *sr = static_cast<StringResource *>(sequence); + rules = sr->fString; + } + } + } +} + +// Quick-and-dirty escaping function. +// Assumes that we are on an ASCII-based platform. +static void +escape(const UChar *s, char *buffer) { + int32_t length = u_strlen(s); + int32_t i = 0; + for (;;) { + UChar32 c; + U16_NEXT(s, i, length, c); + if (c == 0) { + *buffer = 0; + return; + } else if (0x20 <= c && c <= 0x7e) { + // printable ASCII + *buffer++ = (char)c; // assumes ASCII-based platform + } else { + buffer += sprintf(buffer, "\\u%04X", (int)c); + } + } +} + +} // namespace + +#endif // !UCONFIG_NO_COLLATION + +static TableResource * +addCollation(ParseState* state, TableResource *result, const char *collationType, + uint32_t startline, UErrorCode *status) +{ + // TODO: Use LocalPointer for result, or make caller close it when there is a failure. + struct SResource *member = NULL; + struct UString *tokenValue; + struct UString comment; + enum ETokenType token; + char subtag[1024]; + UnicodeString rules; + UBool haveRules = FALSE; + UVersionInfo version; + uint32_t line; + + /* '{' . (name resource)* '}' */ + version[0]=0; version[1]=0; version[2]=0; version[3]=0; + + for (;;) + { + ustr_init(&comment); + token = getToken(state, &tokenValue, &comment, &line, status); + + if (token == TOK_CLOSE_BRACE) + { + break; + } + + if (token != TOK_STRING) + { + res_close(result); + *status = U_INVALID_FORMAT_ERROR; + + if (token == TOK_EOF) + { + error(startline, "unterminated table"); + } + else + { + error(line, "Unexpected token %s", tokenNames[token]); + } + + return NULL; + } + + u_UCharsToChars(tokenValue->fChars, subtag, u_strlen(tokenValue->fChars) + 1); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + member = parseResource(state, subtag, NULL, status); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + if (result == NULL) + { + // Ignore the parsed resources, continue parsing. + } + else if (uprv_strcmp(subtag, "Version") == 0 && member->isString()) + { + StringResource *sr = static_cast<StringResource *>(member); + char ver[40]; + int32_t length = sr->length(); + + if (length >= UPRV_LENGTHOF(ver)) + { + length = UPRV_LENGTHOF(ver) - 1; + } + + sr->fString.extract(0, length, ver, UPRV_LENGTHOF(ver), US_INV); + u_versionFromString(version, ver); + + result->add(member, line, *status); + member = NULL; + } + else if(uprv_strcmp(subtag, "%%CollationBin")==0) + { + /* discard duplicate %%CollationBin if any*/ + } + else if (uprv_strcmp(subtag, "Sequence") == 0 && member->isString()) + { + StringResource *sr = static_cast<StringResource *>(member); + rules = sr->fString; + haveRules = TRUE; + // Defer building the collator until we have seen + // all sub-elements of the collation table, including the Version. + /* in order to achieve smaller data files, we can direct genrb */ + /* to omit collation rules */ + if(!state->omitCollationRules) { + result->add(member, line, *status); + member = NULL; + } + } + else // Just copy non-special items. + { + result->add(member, line, *status); + member = NULL; + } + res_close(member); // TODO: use LocalPointer + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + } + + if (!haveRules) { return result; } + +#if UCONFIG_NO_COLLATION || UCONFIG_NO_FILE_IO + warning(line, "Not building collation elements because of UCONFIG_NO_COLLATION and/or UCONFIG_NO_FILE_IO, see uconfig.h"); + (void)collationType; +#else + // CLDR ticket #3949, ICU ticket #8082: + // Do not build collation binary data for for-import-only "private" collation rule strings. + if (uprv_strncmp(collationType, "private-", 8) == 0) { + if(isVerbose()) { + printf("Not building %s~%s collation binary\n", state->filename, collationType); + } + return result; + } + + if(!state->makeBinaryCollation) { + if(isVerbose()) { + printf("Not building %s~%s collation binary\n", state->filename, collationType); + } + return result; + } + UErrorCode intStatus = U_ZERO_ERROR; + UParseError parseError; + uprv_memset(&parseError, 0, sizeof(parseError)); + GenrbImporter importer(state->inputdir, state->outputdir); + const icu::CollationTailoring *base = icu::CollationRoot::getRoot(intStatus); + if(U_FAILURE(intStatus)) { + error(line, "failed to load root collator (ucadata.icu) - %s", u_errorName(intStatus)); + res_close(result); + return NULL; // TODO: use LocalUResourceBundlePointer for result + } + icu::CollationBuilder builder(base, intStatus); + if(uprv_strncmp(collationType, "search", 6) == 0) { + builder.disableFastLatin(); // build fast-Latin table unless search collator + } + LocalPointer<icu::CollationTailoring> t( + builder.parseAndBuild(rules, version, &importer, &parseError, intStatus)); + if(U_FAILURE(intStatus)) { + const char *reason = builder.getErrorReason(); + if(reason == NULL) { reason = ""; } + error(line, "CollationBuilder failed at %s~%s/Sequence rule offset %ld: %s %s", + state->filename, collationType, + (long)parseError.offset, u_errorName(intStatus), reason); + if(parseError.preContext[0] != 0 || parseError.postContext[0] != 0) { + // Print pre- and post-context. + char preBuffer[100], postBuffer[100]; + escape(parseError.preContext, preBuffer); + escape(parseError.postContext, postBuffer); + error(line, " error context: \"...%s\" ! \"%s...\"", preBuffer, postBuffer); + } + if(isStrict() || t.isNull()) { + *status = intStatus; + res_close(result); + return NULL; + } + } + icu::LocalMemory<uint8_t> buffer; + int32_t capacity = 100000; + uint8_t *dest = buffer.allocateInsteadAndCopy(capacity); + if(dest == NULL) { + fprintf(stderr, "memory allocation (%ld bytes) for file contents failed\n", + (long)capacity); + *status = U_MEMORY_ALLOCATION_ERROR; + res_close(result); + return NULL; + } + int32_t indexes[icu::CollationDataReader::IX_TOTAL_SIZE + 1]; + int32_t totalSize = icu::CollationDataWriter::writeTailoring( + *t, *t->settings, indexes, dest, capacity, intStatus); + if(intStatus == U_BUFFER_OVERFLOW_ERROR) { + intStatus = U_ZERO_ERROR; + capacity = totalSize; + dest = buffer.allocateInsteadAndCopy(capacity); + if(dest == NULL) { + fprintf(stderr, "memory allocation (%ld bytes) for file contents failed\n", + (long)capacity); + *status = U_MEMORY_ALLOCATION_ERROR; + res_close(result); + return NULL; + } + totalSize = icu::CollationDataWriter::writeTailoring( + *t, *t->settings, indexes, dest, capacity, intStatus); + } + if(U_FAILURE(intStatus)) { + fprintf(stderr, "CollationDataWriter::writeTailoring() failed: %s\n", + u_errorName(intStatus)); + res_close(result); + return NULL; + } + if(isVerbose()) { + printf("%s~%s collation tailoring part sizes:\n", state->filename, collationType); + icu::CollationInfo::printSizes(totalSize, indexes); + if(t->settings->hasReordering()) { + printf("%s~%s collation reordering ranges:\n", state->filename, collationType); + icu::CollationInfo::printReorderRanges( + *t->data, t->settings->reorderCodes, t->settings->reorderCodesLength); + } + } + struct SResource *collationBin = bin_open(state->bundle, "%%CollationBin", totalSize, dest, NULL, NULL, status); + result->add(collationBin, line, *status); + if (U_FAILURE(*status)) { + res_close(result); + return NULL; + } +#endif + return result; +} + +static UBool +keepCollationType(const char * /*type*/) { + return TRUE; +} + +static struct SResource * +parseCollationElements(ParseState* state, char *tag, uint32_t startline, UBool newCollation, UErrorCode *status) +{ + TableResource *result = NULL; + struct SResource *member = NULL; + struct UString *tokenValue; + struct UString comment; + enum ETokenType token; + char subtag[1024], typeKeyword[1024]; + uint32_t line; + + result = table_open(state->bundle, tag, NULL, status); + + if (result == NULL || U_FAILURE(*status)) + { + return NULL; + } + if(isVerbose()){ + printf(" collation elements %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + if(!newCollation) { + return addCollation(state, result, "(no type)", startline, status); + } + else { + for(;;) { + ustr_init(&comment); + token = getToken(state, &tokenValue, &comment, &line, status); + + if (token == TOK_CLOSE_BRACE) + { + return result; + } + + if (token != TOK_STRING) + { + res_close(result); + *status = U_INVALID_FORMAT_ERROR; + + if (token == TOK_EOF) + { + error(startline, "unterminated table"); + } + else + { + error(line, "Unexpected token %s", tokenNames[token]); + } + + return NULL; + } + + u_UCharsToChars(tokenValue->fChars, subtag, u_strlen(tokenValue->fChars) + 1); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + if (uprv_strcmp(subtag, "default") == 0) + { + member = parseResource(state, subtag, NULL, status); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + result->add(member, line, *status); + } + else + { + token = peekToken(state, 0, &tokenValue, &line, &comment, status); + /* this probably needs to be refactored or recursively use the parser */ + /* first we assume that our collation table won't have the explicit type */ + /* then, we cannot handle aliases */ + if(token == TOK_OPEN_BRACE) { + token = getToken(state, &tokenValue, &comment, &line, status); + TableResource *collationRes; + if (keepCollationType(subtag)) { + collationRes = table_open(state->bundle, subtag, NULL, status); + } else { + collationRes = NULL; + } + // need to parse the collation data regardless + collationRes = addCollation(state, collationRes, subtag, startline, status); + if (collationRes != NULL) { + result->add(collationRes, startline, *status); + } + } else if(token == TOK_COLON) { /* right now, we'll just try to see if we have aliases */ + /* we could have a table too */ + token = peekToken(state, 1, &tokenValue, &line, &comment, status); + u_UCharsToChars(tokenValue->fChars, typeKeyword, u_strlen(tokenValue->fChars) + 1); + if(uprv_strcmp(typeKeyword, "alias") == 0) { + member = parseResource(state, subtag, NULL, status); + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + result->add(member, line, *status); + } else { + res_close(result); + *status = U_INVALID_FORMAT_ERROR; + return NULL; + } + } else { + res_close(result); + *status = U_INVALID_FORMAT_ERROR; + return NULL; + } + } + + /*member = string_open(bundle, subtag, tokenValue->fChars, tokenValue->fLength, status);*/ + + /*expect(TOK_CLOSE_BRACE, NULL, NULL, status);*/ + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + } + } +} + +/* Necessary, because CollationElements requires the bundle->fRoot member to be present which, + if this weren't special-cased, wouldn't be set until the entire file had been processed. */ +static struct SResource * +realParseTable(ParseState* state, TableResource *table, char *tag, uint32_t startline, UErrorCode *status) +{ + struct SResource *member = NULL; + struct UString *tokenValue=NULL; + struct UString comment; + enum ETokenType token; + char subtag[1024]; + uint32_t line; + UBool readToken = FALSE; + + /* '{' . (name resource)* '}' */ + + if(isVerbose()){ + printf(" parsing table %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + for (;;) + { + ustr_init(&comment); + token = getToken(state, &tokenValue, &comment, &line, status); + + if (token == TOK_CLOSE_BRACE) + { + if (!readToken) { + warning(startline, "Encountered empty table"); + } + return table; + } + + if (token != TOK_STRING) + { + *status = U_INVALID_FORMAT_ERROR; + + if (token == TOK_EOF) + { + error(startline, "unterminated table"); + } + else + { + error(line, "unexpected token %s", tokenNames[token]); + } + + return NULL; + } + + if(uprv_isInvariantUString(tokenValue->fChars, -1)) { + u_UCharsToChars(tokenValue->fChars, subtag, u_strlen(tokenValue->fChars) + 1); + } else { + *status = U_INVALID_FORMAT_ERROR; + error(line, "invariant characters required for table keys"); + return NULL; + } + + if (U_FAILURE(*status)) + { + error(line, "parse error. Stopped parsing tokens with %s", u_errorName(*status)); + return NULL; + } + + member = parseResource(state, subtag, &comment, status); + + if (member == NULL || U_FAILURE(*status)) + { + error(line, "parse error. Stopped parsing resource with %s", u_errorName(*status)); + return NULL; + } + + table->add(member, line, *status); + + if (U_FAILURE(*status)) + { + error(line, "parse error. Stopped parsing table with %s", u_errorName(*status)); + return NULL; + } + readToken = TRUE; + ustr_deinit(&comment); + } + + /* not reached */ + /* A compiler warning will appear if all paths don't contain a return statement. */ +/* *status = U_INTERNAL_PROGRAM_ERROR; + return NULL;*/ +} + +static struct SResource * +parseTable(ParseState* state, char *tag, uint32_t startline, const struct UString *comment, UErrorCode *status) +{ + if (tag != NULL && uprv_strcmp(tag, "CollationElements") == 0) + { + return parseCollationElements(state, tag, startline, FALSE, status); + } + if (tag != NULL && uprv_strcmp(tag, "collations") == 0) + { + return parseCollationElements(state, tag, startline, TRUE, status); + } + if(isVerbose()){ + printf(" table %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + TableResource *result = table_open(state->bundle, tag, comment, status); + + if (result == NULL || U_FAILURE(*status)) + { + return NULL; + } + return realParseTable(state, result, tag, startline, status); +} + +static struct SResource * +parseArray(ParseState* state, char *tag, uint32_t startline, const struct UString *comment, UErrorCode *status) +{ + struct SResource *member = NULL; + struct UString *tokenValue; + struct UString memberComments; + enum ETokenType token; + UBool readToken = FALSE; + + ArrayResource *result = array_open(state->bundle, tag, comment, status); + + if (result == NULL || U_FAILURE(*status)) + { + return NULL; + } + if(isVerbose()){ + printf(" array %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + ustr_init(&memberComments); + + /* '{' . resource [','] '}' */ + for (;;) + { + /* reset length */ + ustr_setlen(&memberComments, 0, status); + + /* check for end of array, but don't consume next token unless it really is the end */ + token = peekToken(state, 0, &tokenValue, NULL, &memberComments, status); + + + if (token == TOK_CLOSE_BRACE) + { + getToken(state, NULL, NULL, NULL, status); + if (!readToken) { + warning(startline, "Encountered empty array"); + } + break; + } + + if (token == TOK_EOF) + { + res_close(result); + *status = U_INVALID_FORMAT_ERROR; + error(startline, "unterminated array"); + return NULL; + } + + /* string arrays are a special case */ + if (token == TOK_STRING) + { + getToken(state, &tokenValue, &memberComments, NULL, status); + member = string_open(state->bundle, NULL, tokenValue->fChars, tokenValue->fLength, &memberComments, status); + } + else + { + member = parseResource(state, NULL, &memberComments, status); + } + + if (member == NULL || U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + result->add(member); + + /* eat optional comma if present */ + token = peekToken(state, 0, NULL, NULL, NULL, status); + + if (token == TOK_COMMA) + { + getToken(state, NULL, NULL, NULL, status); + } + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + readToken = TRUE; + } + + ustr_deinit(&memberComments); + return result; +} + +static struct SResource * +parseIntVector(ParseState* state, char *tag, uint32_t startline, const struct UString *comment, UErrorCode *status) +{ + enum ETokenType token; + char *string; + int32_t value; + UBool readToken = FALSE; + char *stopstring; + uint32_t len; + struct UString memberComments; + + IntVectorResource *result = intvector_open(state->bundle, tag, comment, status); + + if (result == NULL || U_FAILURE(*status)) + { + return NULL; + } + + if(isVerbose()){ + printf(" vector %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + ustr_init(&memberComments); + /* '{' . string [','] '}' */ + for (;;) + { + ustr_setlen(&memberComments, 0, status); + + /* check for end of array, but don't consume next token unless it really is the end */ + token = peekToken(state, 0, NULL, NULL,&memberComments, status); + + if (token == TOK_CLOSE_BRACE) + { + /* it's the end, consume the close brace */ + getToken(state, NULL, NULL, NULL, status); + if (!readToken) { + warning(startline, "Encountered empty int vector"); + } + ustr_deinit(&memberComments); + return result; + } + + string = getInvariantString(state, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + /* For handling illegal char in the Intvector */ + value = uprv_strtoul(string, &stopstring, 0);/* make intvector support decimal,hexdigit,octal digit ranging from -2^31-2^32-1*/ + len=(uint32_t)(stopstring-string); + + if(len==uprv_strlen(string)) + { + result->add(value, *status); + uprv_free(string); + token = peekToken(state, 0, NULL, NULL, NULL, status); + } + else + { + uprv_free(string); + *status=U_INVALID_CHAR_FOUND; + } + + if (U_FAILURE(*status)) + { + res_close(result); + return NULL; + } + + /* the comma is optional (even though it is required to prevent the reader from concatenating + consecutive entries) so that a missing comma on the last entry isn't an error */ + if (token == TOK_COMMA) + { + getToken(state, NULL, NULL, NULL, status); + } + readToken = TRUE; + } + + /* not reached */ + /* A compiler warning will appear if all paths don't contain a return statement. */ +/* intvector_close(result, status); + *status = U_INTERNAL_PROGRAM_ERROR; + return NULL;*/ +} + +static struct SResource * +parseBinary(ParseState* state, char *tag, uint32_t startline, const struct UString *comment, UErrorCode *status) +{ + uint32_t line; + LocalMemory<char> string(getInvariantString(state, &line, NULL, status)); + if (string.isNull() || U_FAILURE(*status)) + { + return NULL; + } + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + if (U_FAILURE(*status)) + { + return NULL; + } + + if(isVerbose()){ + printf(" binary %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + uint32_t count = (uint32_t)uprv_strlen(string.getAlias()); + if (count > 0){ + if((count % 2)==0){ + LocalMemory<uint8_t> value; + if (value.allocateInsteadAndCopy(count) == NULL) + { + *status = U_MEMORY_ALLOCATION_ERROR; + return NULL; + } + + char toConv[3] = {'\0', '\0', '\0'}; + for (uint32_t i = 0; i < count; i += 2) + { + toConv[0] = string[i]; + toConv[1] = string[i + 1]; + + char *stopstring; + value[i >> 1] = (uint8_t) uprv_strtoul(toConv, &stopstring, 16); + uint32_t len=(uint32_t)(stopstring-toConv); + + if(len!=2) + { + *status=U_INVALID_CHAR_FOUND; + return NULL; + } + } + + return bin_open(state->bundle, tag, count >> 1, value.getAlias(), NULL, comment, status); + } + else + { + *status = U_INVALID_CHAR_FOUND; + error(line, "Encountered invalid binary value (length is odd)"); + return NULL; + } + } + else + { + warning(startline, "Encountered empty binary value"); + return bin_open(state->bundle, tag, 0, NULL, "", comment, status); + } +} + +static struct SResource * +parseInteger(ParseState* state, char *tag, uint32_t startline, const struct UString *comment, UErrorCode *status) +{ + struct SResource *result = NULL; + int32_t value; + char *string; + char *stopstring; + uint32_t len; + + string = getInvariantString(state, NULL, NULL, status); + + if (string == NULL || U_FAILURE(*status)) + { + return NULL; + } + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + uprv_free(string); + return NULL; + } + + if(isVerbose()){ + printf(" integer %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + if (uprv_strlen(string) <= 0) + { + warning(startline, "Encountered empty integer. Default value is 0."); + } + + /* Allow integer support for hexdecimal, octal digit and decimal*/ + /* and handle illegal char in the integer*/ + value = uprv_strtoul(string, &stopstring, 0); + len=(uint32_t)(stopstring-string); + if(len==uprv_strlen(string)) + { + result = int_open(state->bundle, tag, value, comment, status); + } + else + { + *status=U_INVALID_CHAR_FOUND; + } + uprv_free(string); + + return result; +} + +static struct SResource * +parseImport(ParseState* state, char *tag, uint32_t startline, const struct UString* comment, UErrorCode *status) +{ + uint32_t line; + LocalMemory<char> filename(getInvariantString(state, &line, NULL, status)); + if (U_FAILURE(*status)) + { + return NULL; + } + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + return NULL; + } + + if(isVerbose()){ + printf(" import %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + /* Open the input file for reading */ + CharString fullname; + if (state->inputdir != NULL) { + fullname.append(state->inputdir, *status); + } + fullname.appendPathPart(filename.getAlias(), *status); + if (U_FAILURE(*status)) { + return NULL; + } + + FileStream *file = T_FileStream_open(fullname.data(), "rb"); + if (file == NULL) + { + error(line, "couldn't open input file %s", filename.getAlias()); + *status = U_FILE_ACCESS_ERROR; + return NULL; + } + + int32_t len = T_FileStream_size(file); + LocalMemory<uint8_t> data; + if(data.allocateInsteadAndCopy(len) == NULL) + { + *status = U_MEMORY_ALLOCATION_ERROR; + T_FileStream_close (file); + return NULL; + } + + /* int32_t numRead = */ T_FileStream_read(file, data.getAlias(), len); + T_FileStream_close (file); + + return bin_open(state->bundle, tag, len, data.getAlias(), fullname.data(), comment, status); +} + +static struct SResource * +parseInclude(ParseState* state, char *tag, uint32_t startline, const struct UString* comment, UErrorCode *status) +{ + struct SResource *result; + int32_t len=0; + char *filename; + uint32_t line; + UChar *pTarget = NULL; + + UCHARBUF *ucbuf; + char *fullname = NULL; + int32_t count = 0; + const char* cp = NULL; + const UChar* uBuffer = NULL; + + filename = getInvariantString(state, &line, NULL, status); + count = (int32_t)uprv_strlen(filename); + + if (U_FAILURE(*status)) + { + return NULL; + } + + expect(state, TOK_CLOSE_BRACE, NULL, NULL, NULL, status); + + if (U_FAILURE(*status)) + { + uprv_free(filename); + return NULL; + } + + if(isVerbose()){ + printf(" include %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + fullname = (char *) uprv_malloc(state->inputdirLength + count + 2); + /* test for NULL */ + if(fullname == NULL) + { + *status = U_MEMORY_ALLOCATION_ERROR; + uprv_free(filename); + return NULL; + } + + if(state->inputdir!=NULL){ + if (state->inputdir[state->inputdirLength - 1] != U_FILE_SEP_CHAR) + { + + uprv_strcpy(fullname, state->inputdir); + + fullname[state->inputdirLength] = U_FILE_SEP_CHAR; + fullname[state->inputdirLength + 1] = '\0'; + + uprv_strcat(fullname, filename); + } + else + { + uprv_strcpy(fullname, state->inputdir); + uprv_strcat(fullname, filename); + } + }else{ + uprv_strcpy(fullname,filename); + } + + ucbuf = ucbuf_open(fullname, &cp,getShowWarning(),FALSE,status); + + if (U_FAILURE(*status)) { + error(line, "couldn't open input file %s\n", filename); + return NULL; + } + + uBuffer = ucbuf_getBuffer(ucbuf,&len,status); + result = string_open(state->bundle, tag, uBuffer, len, comment, status); + + ucbuf_close(ucbuf); + + uprv_free(pTarget); + + uprv_free(filename); + uprv_free(fullname); + + return result; +} + + + + + +U_STRING_DECL(k_type_string, "string", 6); +U_STRING_DECL(k_type_binary, "binary", 6); +U_STRING_DECL(k_type_bin, "bin", 3); +U_STRING_DECL(k_type_table, "table", 5); +U_STRING_DECL(k_type_table_no_fallback, "table(nofallback)", 17); +U_STRING_DECL(k_type_int, "int", 3); +U_STRING_DECL(k_type_integer, "integer", 7); +U_STRING_DECL(k_type_array, "array", 5); +U_STRING_DECL(k_type_alias, "alias", 5); +U_STRING_DECL(k_type_intvector, "intvector", 9); +U_STRING_DECL(k_type_import, "import", 6); +U_STRING_DECL(k_type_include, "include", 7); + +/* Various non-standard processing plugins that create one or more special resources. */ +U_STRING_DECL(k_type_plugin_uca_rules, "process(uca_rules)", 18); +U_STRING_DECL(k_type_plugin_collation, "process(collation)", 18); +U_STRING_DECL(k_type_plugin_transliterator, "process(transliterator)", 23); +U_STRING_DECL(k_type_plugin_dependency, "process(dependency)", 19); + +typedef enum EResourceType +{ + RESTYPE_UNKNOWN, + RESTYPE_STRING, + RESTYPE_BINARY, + RESTYPE_TABLE, + RESTYPE_TABLE_NO_FALLBACK, + RESTYPE_INTEGER, + RESTYPE_ARRAY, + RESTYPE_ALIAS, + RESTYPE_INTVECTOR, + RESTYPE_IMPORT, + RESTYPE_INCLUDE, + RESTYPE_PROCESS_UCA_RULES, + RESTYPE_PROCESS_COLLATION, + RESTYPE_PROCESS_TRANSLITERATOR, + RESTYPE_PROCESS_DEPENDENCY, + RESTYPE_RESERVED +} EResourceType; + +static struct { + const char *nameChars; /* only used for debugging */ + const UChar *nameUChars; + ParseResourceFunction *parseFunction; +} gResourceTypes[] = { + {"Unknown", NULL, NULL}, + {"string", k_type_string, parseString}, + {"binary", k_type_binary, parseBinary}, + {"table", k_type_table, parseTable}, + {"table(nofallback)", k_type_table_no_fallback, NULL}, /* parseFunction will never be called */ + {"integer", k_type_integer, parseInteger}, + {"array", k_type_array, parseArray}, + {"alias", k_type_alias, parseAlias}, + {"intvector", k_type_intvector, parseIntVector}, + {"import", k_type_import, parseImport}, + {"include", k_type_include, parseInclude}, + {"process(uca_rules)", k_type_plugin_uca_rules, parseUCARules}, + {"process(collation)", k_type_plugin_collation, NULL /* not implemented yet */}, + {"process(transliterator)", k_type_plugin_transliterator, parseTransliterator}, + {"process(dependency)", k_type_plugin_dependency, parseDependency}, + {"reserved", NULL, NULL} +}; + +void initParser() +{ + U_STRING_INIT(k_type_string, "string", 6); + U_STRING_INIT(k_type_binary, "binary", 6); + U_STRING_INIT(k_type_bin, "bin", 3); + U_STRING_INIT(k_type_table, "table", 5); + U_STRING_INIT(k_type_table_no_fallback, "table(nofallback)", 17); + U_STRING_INIT(k_type_int, "int", 3); + U_STRING_INIT(k_type_integer, "integer", 7); + U_STRING_INIT(k_type_array, "array", 5); + U_STRING_INIT(k_type_alias, "alias", 5); + U_STRING_INIT(k_type_intvector, "intvector", 9); + U_STRING_INIT(k_type_import, "import", 6); + U_STRING_INIT(k_type_include, "include", 7); + + U_STRING_INIT(k_type_plugin_uca_rules, "process(uca_rules)", 18); + U_STRING_INIT(k_type_plugin_collation, "process(collation)", 18); + U_STRING_INIT(k_type_plugin_transliterator, "process(transliterator)", 23); + U_STRING_INIT(k_type_plugin_dependency, "process(dependency)", 19); +} + +static inline UBool isTable(enum EResourceType type) { + return (UBool)(type==RESTYPE_TABLE || type==RESTYPE_TABLE_NO_FALLBACK); +} + +static enum EResourceType +parseResourceType(ParseState* state, UErrorCode *status) +{ + struct UString *tokenValue; + struct UString comment; + enum EResourceType result = RESTYPE_UNKNOWN; + uint32_t line=0; + ustr_init(&comment); + expect(state, TOK_STRING, &tokenValue, &comment, &line, status); + + if (U_FAILURE(*status)) + { + return RESTYPE_UNKNOWN; + } + + *status = U_ZERO_ERROR; + + /* Search for normal types */ + result=RESTYPE_UNKNOWN; + while ((result=(EResourceType)(result+1)) < RESTYPE_RESERVED) { + if (u_strcmp(tokenValue->fChars, gResourceTypes[result].nameUChars) == 0) { + break; + } + } + /* Now search for the aliases */ + if (u_strcmp(tokenValue->fChars, k_type_int) == 0) { + result = RESTYPE_INTEGER; + } + else if (u_strcmp(tokenValue->fChars, k_type_bin) == 0) { + result = RESTYPE_BINARY; + } + else if (result == RESTYPE_RESERVED) { + char tokenBuffer[1024]; + u_austrncpy(tokenBuffer, tokenValue->fChars, sizeof(tokenBuffer)); + tokenBuffer[sizeof(tokenBuffer) - 1] = 0; + *status = U_INVALID_FORMAT_ERROR; + error(line, "unknown resource type '%s'", tokenBuffer); + } + + return result; +} + +/* parse a non-top-level resource */ +static struct SResource * +parseResource(ParseState* state, char *tag, const struct UString *comment, UErrorCode *status) +{ + enum ETokenType token; + enum EResourceType resType = RESTYPE_UNKNOWN; + ParseResourceFunction *parseFunction = NULL; + struct UString *tokenValue; + uint32_t startline; + uint32_t line; + + + token = getToken(state, &tokenValue, NULL, &startline, status); + + if(isVerbose()){ + printf(" resource %s at line %i \n", (tag == NULL) ? "(null)" : tag, (int)startline); + } + + /* name . [ ':' type ] '{' resource '}' */ + /* This function parses from the colon onwards. If the colon is present, parse the + type then try to parse a resource of that type. If there is no explicit type, + work it out using the lookahead tokens. */ + switch (token) + { + case TOK_EOF: + *status = U_INVALID_FORMAT_ERROR; + error(startline, "Unexpected EOF encountered"); + return NULL; + + case TOK_ERROR: + *status = U_INVALID_FORMAT_ERROR; + return NULL; + + case TOK_COLON: + resType = parseResourceType(state, status); + expect(state, TOK_OPEN_BRACE, &tokenValue, NULL, &startline, status); + + if (U_FAILURE(*status)) + { + return NULL; + } + + break; + + case TOK_OPEN_BRACE: + break; + + default: + *status = U_INVALID_FORMAT_ERROR; + error(startline, "syntax error while reading a resource, expected '{' or ':'"); + return NULL; + } + + + if (resType == RESTYPE_UNKNOWN) + { + /* No explicit type, so try to work it out. At this point, we've read the first '{'. + We could have any of the following: + { { => array (nested) + { :/} => array + { string , => string array + + { string { => table + + { string :/{ => table + { string } => string + */ + + token = peekToken(state, 0, NULL, &line, NULL,status); + + if (U_FAILURE(*status)) + { + return NULL; + } + + if (token == TOK_OPEN_BRACE || token == TOK_COLON ||token ==TOK_CLOSE_BRACE ) + { + resType = RESTYPE_ARRAY; + } + else if (token == TOK_STRING) + { + token = peekToken(state, 1, NULL, &line, NULL, status); + + if (U_FAILURE(*status)) + { + return NULL; + } + + switch (token) + { + case TOK_COMMA: resType = RESTYPE_ARRAY; break; + case TOK_OPEN_BRACE: resType = RESTYPE_TABLE; break; + case TOK_CLOSE_BRACE: resType = RESTYPE_STRING; break; + case TOK_COLON: resType = RESTYPE_TABLE; break; + default: + *status = U_INVALID_FORMAT_ERROR; + error(line, "Unexpected token after string, expected ',', '{' or '}'"); + return NULL; + } + } + else + { + *status = U_INVALID_FORMAT_ERROR; + error(line, "Unexpected token after '{'"); + return NULL; + } + + /* printf("Type guessed as %s\n", resourceNames[resType]); */ + } else if(resType == RESTYPE_TABLE_NO_FALLBACK) { + *status = U_INVALID_FORMAT_ERROR; + error(startline, "error: %s resource type not valid except on top bundle level", gResourceTypes[resType].nameChars); + return NULL; + } + + + /* We should now know what we need to parse next, so call the appropriate parser + function and return. */ + parseFunction = gResourceTypes[resType].parseFunction; + if (parseFunction != NULL) { + return parseFunction(state, tag, startline, comment, status); + } + else { + *status = U_INTERNAL_PROGRAM_ERROR; + error(startline, "internal error: %s resource type found and not handled", gResourceTypes[resType].nameChars); + } + + return NULL; +} + +/* parse the top-level resource */ +struct SRBRoot * +parse(UCHARBUF *buf, const char *inputDir, const char *outputDir, const char *filename, + UBool makeBinaryCollation, UBool omitCollationRules, UErrorCode *status) +{ + struct UString *tokenValue; + struct UString comment; + uint32_t line; + enum EResourceType bundleType; + enum ETokenType token; + ParseState state; + uint32_t i; + + + for (i = 0; i < MAX_LOOKAHEAD + 1; i++) + { + ustr_init(&state.lookahead[i].value); + ustr_init(&state.lookahead[i].comment); + } + + initLookahead(&state, buf, status); + + state.inputdir = inputDir; + state.inputdirLength = (state.inputdir != NULL) ? (uint32_t)uprv_strlen(state.inputdir) : 0; + state.outputdir = outputDir; + state.outputdirLength = (state.outputdir != NULL) ? (uint32_t)uprv_strlen(state.outputdir) : 0; + state.filename = filename; + state.makeBinaryCollation = makeBinaryCollation; + state.omitCollationRules = omitCollationRules; + + ustr_init(&comment); + expect(&state, TOK_STRING, &tokenValue, &comment, NULL, status); + + state.bundle = new SRBRoot(&comment, FALSE, *status); + + if (state.bundle == NULL || U_FAILURE(*status)) + { + return NULL; + } + + + state.bundle->setLocale(tokenValue->fChars, *status); + + /* The following code is to make Empty bundle work no matter with :table specifer or not */ + token = getToken(&state, NULL, NULL, &line, status); + if(token==TOK_COLON) { + *status=U_ZERO_ERROR; + bundleType=parseResourceType(&state, status); + + if(isTable(bundleType)) + { + expect(&state, TOK_OPEN_BRACE, NULL, NULL, &line, status); + } + else + { + *status=U_PARSE_ERROR; + error(line, "parse error. Stopped parsing with %s", u_errorName(*status)); + } + } + else + { + /* not a colon */ + if(token==TOK_OPEN_BRACE) + { + *status=U_ZERO_ERROR; + bundleType=RESTYPE_TABLE; + } + else + { + /* neither colon nor open brace */ + *status=U_PARSE_ERROR; + bundleType=RESTYPE_UNKNOWN; + error(line, "parse error, did not find open-brace '{' or colon ':', stopped with %s", u_errorName(*status)); + } + } + + if (U_FAILURE(*status)) + { + delete state.bundle; + return NULL; + } + + if(bundleType==RESTYPE_TABLE_NO_FALLBACK) { + /* + * Parse a top-level table with the table(nofallback) declaration. + * This is the same as a regular table, but also sets the + * URES_ATT_NO_FALLBACK flag in indexes[URES_INDEX_ATTRIBUTES] . + */ + state.bundle->fNoFallback=TRUE; + } + /* top-level tables need not handle special table names like "collations" */ + assert(!state.bundle->fIsPoolBundle); + assert(state.bundle->fRoot->fType == URES_TABLE); + TableResource *rootTable = static_cast<TableResource *>(state.bundle->fRoot); + realParseTable(&state, rootTable, NULL, line, status); + if(dependencyArray!=NULL){ + rootTable->add(dependencyArray, 0, *status); + dependencyArray = NULL; + } + if (U_FAILURE(*status)) + { + delete state.bundle; + res_close(dependencyArray); + return NULL; + } + + if (getToken(&state, NULL, NULL, &line, status) != TOK_EOF) + { + warning(line, "extraneous text after resource bundle (perhaps unmatched braces)"); + if(isStrict()){ + *status = U_INVALID_FORMAT_ERROR; + return NULL; + } + } + + cleanupLookahead(&state); + ustr_deinit(&comment); + return state.bundle; +} |