AjBool ajReadlinePos(AjPFile file, AjPStr* Pdest, ajlong* Ppos)
{
const char *cp;
char *buff;
ajint isize;
ajint ilen;
ajint jlen;
ajint ipos;
ajuint buffsize;
size_t iread;
const char* pnewline = NULL;
MAJSTRDEL(Pdest);
if(file->Buffsize)
buffsize = file->Buffsize;
else
buffsize = ajFileValueBuffsize();
if(!file->Buff)
ajStrAssignResC(&file->Buff, buffsize, "");
else if(buffsize > MAJSTRGETRES(file->Buff))
ajStrSetRes(&file->Buff, buffsize);
if(MAJSTRGETUSE(file->Buff) == 1)
buff = MAJSTRGETPTR(file->Buff);
else
buff = ajStrGetuniquePtr(&file->Buff);
isize = MAJSTRGETRES(file->Buff);
ilen = 0;
ipos = 0;
if(!file->fp)
ajWarn("ajFileGets file not found");
*Ppos = file->Filepos;
while(buff)
{
if(file->End)
{
ajStrAssignClear(Pdest);
ajDebug("at EOF: File already read to end %F\n", file);
return ajFalse;
}
#ifndef __ppc__
if(file->Readblock)
{
if(file->Blockpos >= file->Blocklen)
{
iread = fread(file->Readblock,
1, file->Blocksize,
file->fp);
if(!iread && ferror(file->fp))
ajFatal("fread failed with error:%d '%s'",
ferror(file->fp), strerror(ferror(file->fp)));
file->Blockpos = 0;
file->Blocklen = iread;
file->Readblock[iread] = '\0';
/*ajDebug("++ fread %u Ppos:%Ld\n", iread, *Ppos);*/
}
if(file->Blockpos < file->Blocklen)
{
/* we know we have something in Readblock to process */
pnewline = strchr(&file->Readblock[file->Blockpos], '\n');
if(pnewline)
jlen = pnewline - &file->Readblock[file->Blockpos] + 1;
else
jlen = file->Blocklen - file->Blockpos;
/*ajDebug("ipos:%d jlen:%d pnewline:%p "
"Readblock:%p blockpos:%d blocklen:%d\n",
ipos, jlen, pnewline, file->Readblock,
file->Blockpos, file->Blocklen);*/
memmove(&buff[ipos], &file->Readblock[file->Blockpos], jlen);
buff[ipos+jlen]='\0';
cp = &buff[ipos];
file->Blockpos += jlen;
}
else
{
jlen = 0;
cp = NULL;
}
}
else
{
cp = fgets(&buff[ipos], isize, file->fp);
jlen = strlen(&buff[ipos]);
}
#else
cp = ajSysFuncFgets(&buff[ipos], isize, file->fp);
jlen = strlen(&buff[ipos]);
#endif
if(!cp && !ipos)
{
if(feof(file->fp))
{
file->End = ajTrue;
ajStrAssignClear(Pdest);
ajDebug("EOF ajFileGetsL file %F\n", file);
return ajFalse;
}
else
ajFatal("Error reading from file '%S'\n", ajFileGetNameS(file));
}
ilen += jlen;
file->Filepos += jlen;
/*
** We need to read again if:
** We have read the entire buffer
** and we don't have a newline at the end
** (must be careful about that - we may just have read enough)
*/
if(((file->Readblock && !pnewline) ||(jlen == (isize-1))) &&
(buff[ilen-1] != '\n'))
{
MAJSTRSETVALIDLEN(&file->Buff, ilen); /* fix before resizing! */
ajStrSetResRound(&file->Buff, ilen+buffsize+1);
/*ajDebug("more to do: jlen: %d ipos: %d isize: %d ilen: %d "
"Size: %d\n",
jlen, ipos, isize, ilen, ajStrGetRes(file->Buff));*/
ipos += jlen;
buff = ajStrGetuniquePtr(&file->Buff);
isize = ajStrGetRes(file->Buff) - ipos;
/*ajDebug("expand to: ipos: %d isize: %d Size: %d\n",
ipos, isize, ajStrGetRes(file>Buff));*/
}
else
buff = NULL;
}
MAJSTRSETVALIDLEN(&file->Buff, ilen);
if (ajStrGetCharLast(file->Buff) != '\n')
{
/*ajDebug("Appending missing newline to '%S'\n", file->Buff);*/
ajStrAppendK(&file->Buff, '\n');
}
ajStrAssignRef(Pdest, file->Buff);
/*
if(file->Readblock)
ajDebug("ajFileGetsL done blocklen:%d blockpos:%d readlen:%u\n",
file->Blocklen, file->Blockpos, ajStrGetLen(file->Buff));
*/
return ajTrue;
}
ajint ajUserGet(AjPStr* pthis, const char* fmt, ...)
{
AjPStr thys;
const char *cp;
char *buff;
va_list args;
ajint ipos;
ajint isize;
ajint ilen;
ajint jlen;
ajint fileBuffSize = ajFileValueBuffsize();
va_start(args, fmt);
ajFmtVError(fmt, args);
va_end(args);
if(ajFileValueRedirectStdin())
{
ajUser("(Standard input in use: using default)");
ajStrAssignC(pthis, "");
return ajStrGetLen(*pthis);
}
ajStrSetRes(pthis, fileBuffSize);
buff = ajStrGetuniquePtr(pthis);
thys = *pthis;
isize = ajStrGetRes(thys);
ilen = 0;
ipos = 0;
/*ajDebug("ajUserGet buffer len: %d res: %d ptr: %x\n",
ajStrGetLen(thys), ajStrGetRes(thys), thys->Ptr);*/
while(buff)
{
#ifndef __ppc__
cp = fgets(&buff[ipos], isize, stdin);
#else
cp = ajSysFuncFgets(&buff[ipos], isize, stdin);
#endif
if(!cp && !ipos)
{
if(feof(stdin))
{
ajErr("Unable to get reply from user - end of standard input");
ajExitBad();
}
else
ajFatal("Error reading from user: '******'\n",
strerror(errno));
}
jlen = strlen(&buff[ipos]);
ilen += jlen;
/*
** We need to read again if:
** We have read the entire buffer
** and we don't have a newline at the end
** (must be careful about that - we may just have read enough)
*/
ajStrSetValidLen(pthis, ilen);
thys = *pthis;
if((jlen == (isize-1)) &&
(ajStrGetCharLast(thys) != '\n'))
{
ajStrSetRes(pthis, ajStrGetRes(thys)+fileBuffSize);
thys = *pthis;
/*ajDebug("more to do: jlen: %d ipos: %d isize: %d ilen: %d "
"Size: %d\n",
jlen, ipos, isize, ilen, ajStrGetRes(thys));*/
ipos += jlen;
buff = ajStrGetuniquePtr(pthis);
isize = ajStrGetRes(thys) - ipos;
/* ajDebug("expand to: ipos: %d isize: %d Size: %d\n",
ipos, isize, ajStrGetRes(thys)); */
}
else
buff = NULL;
}
ajStrSetValidLen(pthis, ilen);
if(ajStrGetCharLast(*pthis) == '\n')
ajStrCutEnd(pthis, 1);
/* PC files have \r\n Macintosh files have just \r : this fixes both */
if(ajStrGetCharLast(*pthis) == '\r')
{
/*ajDebug("Remove carriage-return characters from PC-style files\n");*/
ajStrCutEnd(pthis, 1);
}
ajStrTrimWhite(pthis);
return ajStrGetLen(*pthis);
}
