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cmCsv.h/c: CSV reader now uses a hash table rather than symbol table.

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This commit is contained in:
kevin 2014-01-25 16:16:06 -05:00
parent c8d4648af5
commit 2cac6143ad
2 changed files with 25 additions and 25 deletions
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48
cmCsv.c
View File

@ -7,7 +7,7 @@
#include "cmMallocDebug.h"
#include "cmLex.h"
#include "cmLinkedHeap.h"
#include "cmSymTbl.h"
#include "cmHashTbl.h"
#include "cmCsv.h"
#include "cmText.h"
@ -48,9 +48,9 @@ typedef struct cmCsvUdef_str
typedef struct
{
cmErr_t err;
void* rptDataPtr; //
cmLexH lexH; // parsing lexer
cmSymTblH_t symTblH; // all XML identifiers and data is stored as a symbol in this table
void* rptDataPtr; //
cmLexH lexH; // parsing lexer
cmHashTblH_t htH; // hash table handle
cmLHeapH_t heapH;
cmCsvBind_t* bindPtr; // base of the binder linked list
cmCsvCell_t* curRowPtr; // used by the parser to track the row being filled
@ -95,15 +95,15 @@ cmCsvRC_t cmCsvInitialize( cmCsvH_t *hp, cmCtx_t* ctx )
cmErrSetup(&p->err,&ctx->rpt,"CSV");
// create the symbol table
if( cmSymTblIsValid(p->symTblH = cmSymTblCreate(cmSymTblNullHandle,0,ctx)) == false )
// create the hash table
if( cmHashTblCreate(ctx,&p->htH,8192) != kOkHtRC )
{
rc = _cmCsvError(p,kSymTblErrCsvRC,"Symbol table creation failed.");
rc = _cmCsvError(p,kHashTblErrCsvRC,"Hash table creation failed.");
goto errLabel;
}
// allocate the linked heap mgr
if( cmLHeapIsValid(p->heapH = cmLHeapCreate(1024,ctx)) == false )
if( cmLHeapIsValid(p->heapH = cmLHeapCreate(8192,ctx)) == false )
{
rc = _cmCsvError(p,kMemAllocErrCsvRC,"Linked heap object allocation failed.");
goto errLabel;
@ -161,8 +161,8 @@ cmCsvRC_t cmCsvFinalize( cmCsvH_t *hp )
if((lexRC = cmLexFinal(&p->lexH)) != kOkLexRC )
return _cmCsvError(p,kLexErrCsvRC,"Lexer finalization failed.\nLexer Error:%s",cmLexRcToMsg(lexRC));
// free the symbol table
cmSymTblDestroy(&p->symTblH);
// free the hash table
cmHashTblDestroy(&p->htH);
// free the handle
cmMemPtrFree(&hp->h);
@ -352,8 +352,8 @@ cmCsvRC_t _cmCsvCreateCell( cmCsv_t* p, const char* tokenText, unsigned flags, u
cmCsvRC_t rc = kOkCsvRC;
// register the token text as a symbol
if((symId = cmSymTblRegisterSymbol(p->symTblH,tokenText)) == cmInvalidId )
return _cmCsvError(p,kSymTblErrCsvRC,"Symbol registration failed. for '%s' on line %i column %i.",tokenText,lexRow,lexCol);
if((symId = cmHashTblStoreStr(p->htH,tokenText)) == cmInvalidId )
return _cmCsvError(p,kHashTblErrCsvRC,"Symbol registration failed. for '%s' on line %i column %i.",tokenText,lexRow,lexCol);
// allocate a cell
if((rc = _cmCsvAllocCell(p,symId,flags,cellRow,cellCol,&cp,lexTId)) != kOkCsvRC )
@ -561,8 +561,8 @@ const char* cmCsvCellSymText( cmCsvH_t h, unsigned symId )
cmCsv_t* p = _cmCsvHandleToPtr(h);
const char* cp;
if((cp = cmSymTblLabel(p->symTblH,symId)) == NULL )
_cmCsvError(p,kSymTblErrCsvRC,"The text associated with the symbol '%i' was not found.",symId);
if((cp = cmHashTblStr(p->htH,symId)) == NULL )
_cmCsvError(p,kHashTblErrCsvRC,"The text associated with the symbol '%i' was not found.",symId);
return cp;
}
@ -573,7 +573,7 @@ cmCsvRC_t cmCsvCellSymInt( cmCsvH_t h, unsigned symId, int* vp )
cmCsv_t* p = _cmCsvHandleToPtr(h);
if((cp = cmCsvCellSymText(h,symId)) == NULL )
return kSymTblErrCsvRC;
return kHashTblErrCsvRC;
if( cmTextToInt(cp,vp,&p->err) != kOkTxRC )
return _cmCsvError(p,kDataCvtErrCsvRC,"CSV text to int value failed.");
@ -587,7 +587,7 @@ cmCsvRC_t cmCsvCellSymUInt( cmCsvH_t h, unsigned symId, unsigned* vp )
cmCsv_t* p = _cmCsvHandleToPtr(h);
if((cp = cmCsvCellSymText(h,symId)) == NULL )
return kSymTblErrCsvRC;
return kHashTblErrCsvRC;
if( cmTextToUInt(cp,vp,&p->err) != kOkTxRC )
return _cmCsvError(p,kDataCvtErrCsvRC,"CSV text to uint value failed.");
@ -601,7 +601,7 @@ cmCsvRC_t cmCsvCellSymFloat( cmCsvH_t h, unsigned symId, float* vp )
cmCsv_t* p = _cmCsvHandleToPtr(h);
if((cp = cmCsvCellSymText(h,symId)) == NULL )
return kSymTblErrCsvRC;
return kHashTblErrCsvRC;
if( cmTextToFloat(cp,vp,&p->err) != kOkTxRC )
return _cmCsvError(p,kDataCvtErrCsvRC,"CSV text to float value failed.");
@ -615,7 +615,7 @@ cmCsvRC_t cmCsvCellSymDouble( cmCsvH_t h, unsigned symId, double* vp )
cmCsv_t* p = _cmCsvHandleToPtr(h);
if((cp = cmCsvCellSymText(h,symId)) == NULL )
return kSymTblErrCsvRC;
return kHashTblErrCsvRC;
if( cmTextToDouble(cp,vp,&p->err) != kOkTxRC )
return _cmCsvError(p,kDataCvtErrCsvRC,"CSV text to double value failed.");
@ -695,8 +695,8 @@ unsigned cmCsvInsertSymText( cmCsvH_t h, const char* text )
cmCsv_t* p = _cmCsvHandleToPtr(h);
unsigned symId;
if((symId = cmSymTblRegisterSymbol(p->symTblH,text)) == cmInvalidId )
_cmCsvError(p,kSymTblErrCsvRC,"'%s' could not be inserted into the symbol table.",text);
if((symId = cmHashTblStoreStr(p->htH,text)) == cmInvalidId )
_cmCsvError(p,kHashTblErrCsvRC,"'%s' could not be inserted into the symbol table.",text);
return symId;
}
@ -1134,8 +1134,8 @@ cmCsvRC_t cmCsvWrite( cmCsvH_t h, const char* fn )
{
const char* tp;
if((tp = cmSymTblLabel(p->symTblH,cp->symId)) == NULL )
return _cmCsvError(p,kSymTblErrCsvRC,"Unable to locate the symbol text for cell at row:%i col:%i.",cp->row,cp->col);
if((tp = cmHashTblStr(p->htH,cp->symId)) == NULL )
return _cmCsvError(p,kHashTblErrCsvRC,"Unable to locate the symbol text for cell at row:%i col:%i.",cp->row,cp->col);
if( cmIsFlag(cp->flags,kTextTMask) )
fprintf(fp,"\"");
@ -1179,8 +1179,8 @@ cmCsvRC_t cmCsvPrint( cmCsvH_t h, unsigned rowCnt )
{
const char* tp;
if((tp = cmSymTblLabel(p->symTblH,cp->symId)) == NULL )
_cmCsvError(p,kSymTblErrCsvRC,"The text associated with the symbol '%i' was not found.",cp->symId);
if((tp = cmHashTblStr(p->htH,cp->symId)) == NULL )
_cmCsvError(p,kHashTblErrCsvRC,"The text associated with the symbol '%i' was not found.",cp->symId);
fputs(tp,stdin);
}

2
cmCsv.h
View File

@ -11,7 +11,7 @@ extern "C" {
kOkCsvRC = 0,
kMemAllocErrCsvRC,
kLexErrCsvRC,
kSymTblErrCsvRC,
kHashTblErrCsvRC,
kSyntaxErrCsvRC,
kFileOpenErrCsvRC,
kFileCreateErrCsvRC,