512 lines
16 KiB
C
512 lines
16 KiB
C
/*
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*******************************************************************************
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*
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* Copyright (C) 1998-2000, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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*
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* File parse.c
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*
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* Modification History:
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*
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* Date Name Description
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* 05/26/99 stephen Creation.
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* 02/25/00 weiv Overhaul to write udata
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*******************************************************************************
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*/
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#include "parse.h"
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#include "error.h"
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#include "uhash.h"
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#include "cmemory.h"
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#include "read.h"
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#include "unicode/ustdio.h"
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#include "ustr.h"
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#include "reslist.h"
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#include "unicode/ustring.h"
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#include "unicode/ucol.h"
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U_CAPI const UChar * U_EXPORT2 ucol_getDefaultRulesArray(uint32_t *size);
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U_STRING_DECL(k_start_string, "string", 6);
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U_STRING_DECL(k_start_binary, "binary", 6);
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U_STRING_DECL(k_start_table, "table", 5);
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U_STRING_DECL(k_start_int, "int", 3);
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U_STRING_DECL(k_start_array, "array", 5);
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U_STRING_DECL(k_start_intvector, "intvector", 9);
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U_STRING_DECL(k_start_reserved, "reserved", 8);
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static UBool didInit=FALSE;
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/* Node IDs for the state transition table. */
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enum ENode {
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eError,
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eInitial, /* Next: Locale name */
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eGotLoc, /* Next: { */
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eIdle, /* Next: Tag name | } */
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eGotTag, /* Next: { | : */
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eNode5, /* Next: Data | Subtag */
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eNode6, /* Next: } | { | , */
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eList, /* Next: List data */
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eNode8, /* Next: , */
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eTagList, /* Next: Subtag data */
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eNode10, /* Next: } */
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eNode11, /* Next: Subtag */
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eNode12, /* Next: { */
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e2dArray, /* Next: Data | } */
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eNode14, /* Next: , | } */
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eNode15, /* Next: , | } */
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eNode16, /* Next: { | } */
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eTypeStart, /* Next: Type name */
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eGotType /* Next: { */
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};
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/* Action codes for the state transtiion table. */
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enum EAction {
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/* Generic actions */
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eNOP = 0x0100, /* Do nothing */
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eOpen = 0x0200, /* Open a new locale data block with the data
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string as the locale name */
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eClose = 0x0300, /* Close a locale data block */
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eSetTag = 0x0400, /* Record the last string as the tag name */
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/* Comma-delimited lists */
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eBegList = 0x1100, /* Start a new string list with the last string
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as the first element */
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eEndList = 0x1200, /* Close a string list being built */
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eListStr = 0x1300, /* Record the last string as a data string and
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increment the index */
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eStr = 0x1400, /* Record the last string as a singleton string */
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/* 2-d lists */
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eBeg2dList = 0x2100, /* Start a new 2d string list with no elements as yet */
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eEnd2dList = 0x2200, /* Close a 2d string list being built */
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e2dStr = 0x2300, /* Record the last string as a 2d string */
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eNewRow = 0x2400, /* Start a new row */
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/* Tagged lists */
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eBegTagged = 0x3100, /* Start a new tagged list with the last
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string as the first subtag */
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eEndTagged = 0x3200, /* Close a tagged list being build */
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eSubtag = 0x3300, /* Record the last string as the subtag */
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eTaggedStr = 0x3400, /* Record the last string as a tagged string */
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/* Type support */
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eBegType = 0x4100, /* Start getting a type */
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eSetType = 0x4200 /* Record and init type */
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};
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/* A struct which encapsulates a node ID and an action. */
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struct STransition {
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enum ENode fNext;
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enum EAction fAction;
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};
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/* This table describes an ATM (state machine) which parses resource
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bundle text files rather strictly. Each row represents a node. The
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columns of that row represent transitions into other nodes. Most
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transitions are "eError" because most transitions are
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disallowed. For example, if the parser has just seen a tag name, it
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enters node 4 ("eGotTag"). The state table then marks only one
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valid transition, which is into node 5, upon seeing an eOpenBrace
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token. We allow an extra comma after the last element in a
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comma-delimited list (transition from eList to eIdle on
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kCloseBrace). */
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static struct STransition gTransitionTable [] = {
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/* kString kOpenBrace kCloseBrace kComma
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/*eError*/ {eError,eNOP}, {eError,eNOP}, {eError,eNOP}, {eError,eNOP},
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/*eInitial*/ {eGotLoc,eOpen}, {eError,eNOP}, {eError,eNOP}, {eError,eNOP},
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/*eGotLoc*/ {eError,eNOP}, {eIdle,eNOP}, {eError,eNOP}, {eError,eNOP},
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/*eIdle*/ {eGotTag,eSetTag}, {eError,eNOP}, {eInitial,eClose}, {eError,eNOP},
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/*eGotTag*/ {eError,eNOP}, {eNode5,eNOP}, {eError,eNOP}, {eError,eNOP},
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/*eNode5*/ {eNode6,eNOP}, {e2dArray,eBeg2dList},{eError,eNOP}, {eError,eNOP},
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/*eNode6*/ {eError,eNOP}, {eTagList,eBegTagged},{eIdle,eStr}, {eList,eBegList},
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/*eList*/ {eNode8,eListStr}, {eError,eNOP}, {eIdle,eEndList}, {eError,eNOP},
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/*eNode8*/ {eError,eNOP}, {eError,eNOP}, {eIdle,eEndList}, {eList,eNOP},
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/*eTagList*/ {eNode10,eTaggedStr},{eError,eNOP}, {eError,eNOP}, {eError,eNOP},
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/*eNode10*/ {eError,eNOP}, {eError,eNOP}, {eNode11,eNOP}, {eError,eNOP},
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/*eNode11*/ {eNode12,eNOP}, {eError,eNOP}, {eIdle,eEndTagged},{eError,eNOP},
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/*eNode12*/ {eError,eNOP}, {eTagList,eSubtag}, {eError,eNOP}, {eError,eNOP},
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/*e2dArray*/ {eNode14,e2dStr}, {eError,eNOP}, {eNode15,eNOP}, {eError,eNOP},
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/*eNode14*/ {eError,eNOP}, {eError,eNOP}, {eNode15,eNOP}, {e2dArray,eNOP},
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/*eNode15*/ {eError,eNOP}, {e2dArray,eNewRow}, {eIdle,eEnd2dList},{eNode16,eNOP},
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/*eNode16*/ {eError,eNOP}, {e2dArray,eNewRow}, {eIdle,eEnd2dList},{eError,eNOP},
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/*eTypeStart*/{eGotType,eSetType}, {eError,eNOP}, {eError,eNOP}, {eError,eNOP},
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/*eGotType*/ {eError,eNOP}, {eError,eNOP}, {eError,eNOP}, {eError,eNOP}
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};
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/* Row length is 4 */
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#define GETTRANSITION(row,col) (gTransitionTable[col + (row<<2)])
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/* Not anymore, it is 5 now */
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/*#define GETTRANSITION(row,col) (gTransitionTable[col + (row*5)])*/
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/*********************************************************************
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* Hashtable glue
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********************************************************************/
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static UBool get(UHashtable *hash, const struct UString* tag) {
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return uhash_get(hash, tag) != NULL;
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}
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static void put(UHashtable *hash, const struct UString *tag,
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UErrorCode* status) {
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struct UString* key = uprv_malloc(sizeof(struct UString));
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ustr_init(key);
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ustr_cpy(key, tag, status);
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uhash_put(hash, key, (void*)1, status);
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}
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static void freeUString(void* ustr) {
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ustr_deinit(ustr);
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uprv_free(ustr);
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}
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static int32_t hashUString(const void* ustr) {
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return uhash_hashUChars(((struct UString*)ustr)->fChars);
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}
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static UBool compareUString(const void* ustr1, const void* ustr2) {
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return uhash_compareUChars(((struct UString*)ustr1)->fChars,
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((struct UString*)ustr2)->fChars);
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}
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/*********************************************************************
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* parse
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********************************************************************/
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struct SRBRoot*
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parse(FileStream *f, const char *cp,
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UErrorCode *status)
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{
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struct UFILE *file;
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enum ETokenType type;
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enum ENode node;
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struct STransition t;
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struct UString token;
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struct UString tag;
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char cTag[1024];
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char cSubTag[1024];
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struct SRBRoot *bundle = NULL;
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struct SResource *rootTable = NULL;
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struct SResource *temp = NULL;
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struct SResource *temp1 = NULL;
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struct SResource *temp2 = NULL;
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UBool colEl = FALSE;
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/* Hashtable for keeping track of seen tag names */
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struct UHashtable *data;
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if(U_FAILURE(*status)) return NULL;
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/* setup */
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ustr_init(&token);
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ustr_init(&tag);
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/*
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cTag = uprv_malloc(1024);
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if(cTag == NULL) {
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*status = U_MEMORY_ALLOCATION_ERROR;
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return NULL;
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}
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cSubTag = uprv_malloc(1024);
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if(cSubTag == NULL) {
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*status = U_MEMORY_ALLOCATION_ERROR;
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return NULL;
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}
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*/
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node = eInitial;
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data = 0;
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file = u_finit((FILE *)f, 0, cp);
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/* file = u_finit(f, cp, status); */
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bundle = bundle_open(status);
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rootTable = bundle -> fRoot;
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if(U_FAILURE(*status) || file == NULL) goto finish;
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/* iterate through the stream */
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for(;;) {
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/* get next token from stream */
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type = getNextToken(file, &token, status);
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if(U_FAILURE(*status)) goto finish;
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switch(type) {
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case tok_EOF:
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*status = (node == eInitial) ? U_ZERO_ERROR : U_INVALID_FORMAT_ERROR;
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if(U_FAILURE(*status)) {
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setErrorText("Unexpected EOF encountered");
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}
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goto finish;
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/*break;*/
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case tok_error:
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*status = U_INVALID_FORMAT_ERROR;
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goto finish;
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/*break;*/
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default:
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break;
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}
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t = GETTRANSITION(node, type);
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node = t.fNext;
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if(node == eError) {
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*status = U_INVALID_FORMAT_ERROR;
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goto finish;
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}
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switch(t.fAction) {
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case eNOP:
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break;
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/* Record the last string as the tag name */
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case eSetTag:
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ustr_cpy(&tag, &token, status);
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u_UCharsToChars(tag.fChars, cTag, u_strlen(tag.fChars)+1);
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if(U_FAILURE(*status)) goto finish;
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if(uprv_strchr(cTag, ':')) {
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/* type modificator - do the type modification*/
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} else if(uprv_strcmp(cTag, "CollationElements") == 0) {
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colEl = TRUE;
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}
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/*if(uhash_get(data, uhash_hashUString(tag.fChars)) != 0) {*/
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if(get(data, &tag)) {
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char *s;
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*status = U_INVALID_FORMAT_ERROR;
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s = uprv_malloc(1024);
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strcpy(s, "Duplicate tag name detected: ");
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u_austrcpy(s+strlen(s), tag.fChars);
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setErrorText(s);
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goto finish;
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}
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break;
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/* Record a singleton string */
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case eStr:
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if(temp != NULL) {
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*status = U_INTERNAL_PROGRAM_ERROR;
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goto finish;
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}
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temp = string_open(bundle, cTag, token.fChars, token.fLength, status);
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table_add(rootTable, temp, status);
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if(colEl == TRUE) {
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const UChar * defaultRulesArray;
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uint32_t defaultRulesArrayLength = 0;
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/* do the collation elements */
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int32_t len = 0;
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uint8_t *data = NULL;
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UCollator *coll = NULL;
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UChar *rules = NULL;
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defaultRulesArray = ucol_getDefaultRulesArray(&defaultRulesArrayLength);
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rules = uprv_malloc(sizeof(defaultRulesArray[0])*(defaultRulesArrayLength + token.fLength));
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uprv_memcpy(rules, defaultRulesArray, defaultRulesArrayLength*sizeof(defaultRulesArray[0]));
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uprv_memcpy(rules + defaultRulesArrayLength, token.fChars, token.fLength*sizeof(token.fChars[0]));
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coll = ucol_openRules(rules, defaultRulesArrayLength + token.fLength, 0, 0, status);
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if(U_SUCCESS(*status) && coll !=NULL) {
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/* This is just for testing & should be removed
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temp1 = bin_open(bundle, "%%Collation", sizeof(defaultRulesArray[0])*(defaultRulesArrayLength + token.fLength), (uint8_t *) rules, status);
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table_add(rootTable, temp1, status);
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*/
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/*
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data = ucol_cloneRuleData(coll, &len, status);
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if(U_SUCCESS(*status) && data != NULL) {
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temp1 = bin_open(bundle, "%%Collation", len, data, status);
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table_add(rootTable, temp1, status);
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uprv_free(data);
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}
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*/
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ucol_close(coll);
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}
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uprv_free(rules);
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colEl = FALSE;
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}
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/*uhash_put(data, tag.fChars, status);*/
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put(data, &tag, status);
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if(U_FAILURE(*status)) goto finish;
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temp = NULL;
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break;
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/* Begin a string list */
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case eBegList:
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if(temp != NULL) {
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*status = U_INTERNAL_PROGRAM_ERROR;
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goto finish;
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}
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temp = array_open(bundle, cTag, status);
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temp1 = string_open(bundle, NULL, token.fChars, token.fLength, status);
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array_add(temp, temp1, status);
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temp1 = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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/* Record a comma-delimited list string */
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case eListStr:
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temp1 = string_open(bundle, NULL, token.fChars, token.fLength, status);
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array_add(temp, temp1, status);
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temp1 = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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/* End a string list */
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case eEndList:
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/*uhash_put(data, tag.fChars, status);*/
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put(data, &tag, status);
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table_add(rootTable, temp, status);
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temp = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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case eBeg2dList:
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if(temp != NULL) {
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*status = U_INTERNAL_PROGRAM_ERROR;
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goto finish;
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}
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temp = array_open(bundle, cTag, status);
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temp1 = array_open(bundle, NULL, status);
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if(U_FAILURE(*status)) goto finish;
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break;
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case eEnd2dList:
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/*uhash_put(data, tag.fChars, status);*/
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put(data, &tag, status);
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array_add(temp, temp1, status);
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table_add(rootTable, temp, status);
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temp1 = NULL;
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temp = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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case e2dStr:
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temp2 = string_open(bundle, NULL, token.fChars, token.fLength, status);
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array_add(temp1, temp2, status);
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temp2 = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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case eNewRow:
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array_add(temp, temp1, status);
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temp1 = array_open(bundle, NULL, status);
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if(U_FAILURE(*status)) goto finish;
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break;
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case eBegTagged:
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if(temp != NULL) {
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*status = U_INTERNAL_PROGRAM_ERROR;
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goto finish;
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}
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temp = table_open(bundle, cTag, status);
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u_UCharsToChars(token.fChars, cSubTag, u_strlen(token.fChars)+1);
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if(U_FAILURE(*status)) goto finish;
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break;
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case eEndTagged:
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/*uhash_put(data, tag.fChars, status);*/
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put(data, &tag, status);
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table_add(rootTable, temp, status);
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temp = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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case eTaggedStr:
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temp1 = string_open(bundle, cSubTag, token.fChars, token.fLength, status);
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table_add(temp, temp1, status);
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temp1 = NULL;
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if(U_FAILURE(*status)) goto finish;
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break;
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/* Record the last string as the subtag */
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case eSubtag:
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u_UCharsToChars(token.fChars, cSubTag, u_strlen(token.fChars)+1);
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if(U_FAILURE(*status)) goto finish;
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if(table_get(temp, cSubTag, status) != 0) {
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*status = U_INVALID_FORMAT_ERROR;
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setErrorText("Duplicate subtag found in tagged list");
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goto finish;
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}
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break;
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case eOpen:
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if(data != 0) {
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*status = U_INTERNAL_PROGRAM_ERROR;
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goto finish;
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}
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bundle_setlocale(bundle, token.fChars, status);
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if(U_FAILURE(*status)) goto finish;
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data = uhash_open(hashUString, compareUString, status);
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uhash_setKeyDeleter(data, freeUString);
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break;
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case eClose:
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if(data == 0) {
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*status = U_INTERNAL_PROGRAM_ERROR;
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goto finish;
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}
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break;
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case eSetType:
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/* type recognition */
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if(!didInit) {
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U_STRING_INIT(k_start_string, "string", 6);
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U_STRING_INIT(k_start_binary, "binary", 6);
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U_STRING_INIT(k_start_table, "table", 5);
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U_STRING_INIT(k_start_int, "int", 3);
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U_STRING_INIT(k_start_array, "array", 5);
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U_STRING_INIT(k_start_intvector, "intvector", 9);
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U_STRING_INIT(k_start_reserved, "reserved", 8);
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didInit=TRUE;
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}
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if(u_strcmp(token.fChars, k_start_string) == 0) {
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node = eGotTag;
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} else if(u_strcmp(token.fChars, k_start_array) == 0) {
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node = eGotTag;
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} else if(u_strcmp(token.fChars, k_start_table) == 0) {
|
|
node = eGotTag;
|
|
} else if(u_strcmp(token.fChars, k_start_binary) == 0) {
|
|
/* start of binary */
|
|
} else if(u_strcmp(token.fChars, k_start_int) == 0) {
|
|
/* start of integer */
|
|
} else if(u_strcmp(token.fChars, k_start_intvector) == 0) {
|
|
/* start of intvector */
|
|
} else if(u_strcmp(token.fChars, k_start_reserved) == 0) {
|
|
/* start of reserved */
|
|
} else {
|
|
*status = U_INTERNAL_PROGRAM_ERROR;
|
|
goto finish;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
finish:
|
|
|
|
/* clean up */
|
|
|
|
if(data != 0)
|
|
uhash_close(data);
|
|
|
|
ustr_deinit(&token);
|
|
ustr_deinit(&tag);
|
|
|
|
/*uprv_free(cTag);*/
|
|
/*uprv_free(cSubTag);*/
|
|
|
|
if(file != 0)
|
|
u_fclose(file);
|
|
|
|
return bundle;
|
|
}
|