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#ifndef lint |
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static const char RCSid[] = "$Id: eplus_idf.c,v 2.1 2014/02/01 01:28:43 greg Exp $"; |
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#endif |
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/* |
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* eplus_idf.c |
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* |
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* EnergyPlus Input Data File i/o routines |
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* |
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* Created by Greg Ward on 1/31/14. |
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*/ |
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|
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#include <stdio.h> |
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#include <string.h> |
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#include <ctype.h> |
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#include <stdlib.h> |
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#include "eplus_idf.h" |
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|
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#ifdef getc_unlocked /* avoid horrendous overhead of flockfile */ |
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#undef getc |
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#define getc getc_unlocked |
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#endif |
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|
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/* Create a new parameter with empty field list (comment optional) */ |
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IDF_PARAMETER * |
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idf_newparam(IDF_LOADED *idf, const char *pname, const char *comm, |
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IDF_PARAMETER *prev) |
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{ |
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LUENT *pent; |
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IDF_PARAMETER *pnew; |
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|
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if ((idf == NULL) | (pname == NULL)) |
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return(NULL); |
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if (comm == NULL) comm = ""; |
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pent = lu_find(&idf->ptab, pname); |
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if (pent == NULL) |
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return(NULL); |
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if (pent->key == NULL) { /* new parameter name/type? */ |
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pent->key = (char *)malloc(strlen(pname)+1); |
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if (pent->key == NULL) |
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return(NULL); |
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strcpy(pent->key, pname); |
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} |
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pnew = (IDF_PARAMETER *)malloc(sizeof(IDF_PARAMETER)+strlen(comm)); |
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if (pnew == NULL) |
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return(NULL); |
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strcpy(pnew->rem, comm); |
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pnew->flist = NULL; |
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pnew->pname = pent->key; /* add to table */ |
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pnew->pnext = (IDF_PARAMETER *)pent->data; |
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pent->data = (char *)pnew; |
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pnew->dnext = NULL; /* add to file list */ |
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if (prev != NULL || (prev = idf->plast) != NULL) { |
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pnew->dnext = prev->dnext; |
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if (prev == idf->plast) |
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idf->plast = pnew; |
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} |
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if (idf->pfirst == NULL) |
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idf->pfirst = idf->plast = pnew; |
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else |
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prev->dnext = pnew; |
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return(pnew); |
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} |
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|
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/* Add a field to the given parameter and follow with the given text */ |
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int |
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idf_addfield(IDF_PARAMETER *param, const char *fval, const char *comm) |
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{ |
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int fnum = 1; /* returned argument number */ |
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IDF_FIELD *fnew, *flast; |
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char *cp; |
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|
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if ((param == NULL) | (fval == NULL)) |
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return(0); |
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if (comm == NULL) comm = ""; |
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fnew = (IDF_FIELD *)malloc(sizeof(IDF_FIELD)+strlen(fval)+strlen(comm)); |
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if (fnew == NULL) |
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return(0); |
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fnew->next = NULL; |
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cp = fnew->arg; /* copy argument and comments */ |
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while ((*cp++ = *fval++)) |
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; |
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fnew->rem = cp; |
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while ((*cp++ = *comm++)) |
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; |
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/* add to parameter's field list */ |
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if ((flast = param->flist) != NULL) { |
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++fnum; |
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while (flast->next != NULL) { |
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flast = flast->next; |
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++fnum; |
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} |
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} |
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if (flast == NULL) |
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param->flist = fnew; |
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else |
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flast->next = fnew; |
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return(fnum); |
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} |
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|
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/* Delete the specified parameter from loaded IDF */ |
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int |
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idf_delparam(IDF_LOADED *idf, IDF_PARAMETER *param) |
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{ |
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LUENT *pent; |
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IDF_PARAMETER *pptr, *plast; |
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|
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if ((idf == NULL) | (param == NULL)) |
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return(0); |
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/* remove from parameter table */ |
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pent = lu_find(&idf->ptab, param->pname); |
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for (plast = NULL, pptr = (IDF_PARAMETER *)pent->data; |
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pptr != NULL; plast = pptr, pptr = pptr->pnext) |
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if (pptr == param) |
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break; |
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if (pptr == NULL) |
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return(0); |
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if (plast == NULL) |
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pent->data = (char *)param->pnext; |
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else |
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plast->pnext = param->pnext; |
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/* remove from global list */ |
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for (plast = NULL, pptr = idf->pfirst; |
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pptr != NULL; plast = pptr, pptr = pptr->dnext) |
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if (pptr == param) |
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break; |
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if (pptr == NULL) |
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return(0); |
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if (plast == NULL) |
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idf->pfirst = param->dnext; |
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else |
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plast->dnext = param->dnext; |
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if (idf->plast == param) |
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idf->plast = plast; |
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/* free field list */ |
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while (param->flist != NULL) { |
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IDF_FIELD *fdel = param->flist; |
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param->flist = fdel->next; |
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free(fdel); |
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} |
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free(param); /* free parameter struct */ |
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return(1); |
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} |
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|
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/* Get a named parameter list */ |
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IDF_PARAMETER * |
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idf_getparam(IDF_LOADED *idf, const char *pname) |
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{ |
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if ((idf == NULL) | (pname == NULL)) |
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return(NULL); |
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|
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return((IDF_PARAMETER *)lu_find(&idf->ptab,pname)->data); |
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} |
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|
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/* Read an argument including terminating ',' or ';' -- return which */ |
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static int |
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idf_read_argument(char *buf, FILE *fp, int trim) |
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{ |
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int skipwhite = trim; |
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char *cp = buf; |
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int c; |
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|
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while ((c = getc(fp)) != EOF && (c != ',') & (c != ';')) { |
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if (skipwhite && isspace(c)) |
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continue; |
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skipwhite = 0; |
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if (cp-buf < IDF_MAXARGL-1) |
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*cp++ = c; |
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} |
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if (trim) |
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while (cp > buf && isspace(cp[-1])) |
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--cp; |
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*cp = '\0'; |
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return(c); |
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} |
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|
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/* Read a comment, including all white space up to next alpha character */ |
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static void |
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idf_read_comment(char *buf, int len, FILE *fp) |
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{ |
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int incomm = 0; |
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char *cp = buf; |
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char dummyc; |
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int c; |
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|
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if ((buf == NULL) | (len <= 0)) { |
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buf = &dummyc; |
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len = 1; |
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} |
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while ((c = getc(fp)) != EOF && isspace(c) | incomm) { |
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if (c == '!') |
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++incomm; |
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else if (c == '\n') |
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incomm = 0; |
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if (cp-buf < len-1) |
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*cp++ = c; |
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} |
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*cp = '\0'; |
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if (c != EOF) |
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ungetc(c, fp); |
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} |
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|
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/* Read a parameter and fields from an open file and add to end of list */ |
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IDF_PARAMETER * |
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idf_readparam(IDF_LOADED *idf, FILE *fp) |
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{ |
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char abuf[IDF_MAXARGL], cbuf[IDF_MAXLINE]; |
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int delim; |
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IDF_PARAMETER *pnew; |
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|
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if ((delim = idf_read_argument(abuf, fp, 1)) == EOF) |
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return(NULL); |
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idf_read_comment(cbuf, IDF_MAXLINE, fp); |
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pnew = idf_newparam(idf, abuf, cbuf, NULL); |
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while (delim == ',') |
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if ((delim = idf_read_argument(abuf, fp, 1)) != EOF) { |
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idf_read_comment(cbuf, IDF_MAXLINE, fp); |
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idf_addfield(pnew, abuf, cbuf); |
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} |
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if (delim != ';') |
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fprintf(stderr, "Expected ';' at end of parameter list\n"); |
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return(pnew); |
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} |
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|
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/* Upper-case string hashing function */ |
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static unsigned long |
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strcasehash(const char *s) |
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{ |
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char strup[IDF_MAXARGL]; |
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char *cdst = strup; |
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|
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while ((*cdst++ = toupper(*s++))) |
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if (cdst >= strup+(sizeof(strup)-1)) { |
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*cdst = '\0'; |
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break; |
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} |
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return(lu_shash(strup)); |
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} |
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|
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/* Initialize an IDF struct */ |
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IDF_LOADED * |
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idf_create(const char *hdrcomm) |
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{ |
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IDF_LOADED *idf = (IDF_LOADED *)calloc(1, sizeof(IDF_LOADED)); |
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|
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if (idf == NULL) |
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return(NULL); |
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idf->ptab.hashf = &strcasehash; |
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idf->ptab.keycmp = &strcasecmp; |
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idf->ptab.freek = &free; |
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lu_init(&idf->ptab, 200); |
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if (hdrcomm != NULL && *hdrcomm) { |
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idf->hrem = (char *)malloc(strlen(hdrcomm)+1); |
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if (idf->hrem != NULL) |
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strcpy(idf->hrem, hdrcomm); |
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} |
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return(idf); |
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} |
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|
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/* Load an Input Data File */ |
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IDF_LOADED * |
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idf_load(const char *fname) |
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{ |
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char *hdrcomm; |
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FILE *fp; |
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IDF_LOADED *idf; |
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|
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if (fname == NULL) |
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fp = stdin; /* open file if not stdin */ |
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else if ((fp = fopen(fname, "r")) == NULL) |
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return(NULL); |
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/* read header comments */ |
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hdrcomm = (char *)malloc(100*IDF_MAXLINE); |
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idf_read_comment(hdrcomm, 100*IDF_MAXLINE, fp); |
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idf = idf_create(hdrcomm); /* create IDF struct */ |
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free(hdrcomm); |
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if (idf == NULL) |
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return(NULL); |
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/* read each parameter */ |
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while (idf_readparam(idf, fp) != NULL) |
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; |
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if (fp != stdin) /* close file if not stdin */ |
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fclose(fp); |
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return(idf); /* success! */ |
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} |
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|
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/* Write a parameter and fields to an open file */ |
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int |
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idf_writeparam(IDF_PARAMETER *param, FILE *fp) |
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{ |
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IDF_FIELD *fptr; |
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|
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if ((param == NULL) | (fp == NULL)) |
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return(0); |
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fputs(param->pname, fp); |
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fputc(',', fp); |
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fputs(param->rem, fp); |
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for (fptr = param->flist; fptr != NULL; fptr = fptr->next) { |
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fputs(fptr->arg, fp); |
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fputc((fptr->next==NULL ? ';' : ','), fp); |
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fputs(fptr->rem, fp); |
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} |
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return(!ferror(fp)); |
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} |
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|
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/* Write out an Input Data File */ |
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int |
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idf_write(IDF_LOADED *idf, const char *fname) |
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{ |
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FILE *fp; |
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IDF_PARAMETER *pptr; |
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|
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if (idf == NULL) |
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return(0); |
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if (fname == NULL) |
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fp = stdout; /* open file if not stdout */ |
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else if ((fp = fopen(fname, "w")) == NULL) |
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return(0); |
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fputs(idf->hrem, fp); /* write header then parameters */ |
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for (pptr = idf->pfirst; pptr != NULL; pptr = pptr->dnext) |
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if (!idf_writeparam(pptr, fp)) { |
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fclose(fp); |
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return(0); |
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} |
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if (fp == stdout) /* flush/close file & check status */ |
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return(fflush(fp) == 0); |
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return(fclose(fp) == 0); |
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} |
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|
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/* Free a loaded IDF */ |
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void |
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idf_free(IDF_LOADED *idf) |
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{ |
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if (idf == NULL) |
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return; |
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if (idf->hrem != NULL) |
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free(idf->hrem); |
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while (idf->pfirst != NULL) |
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idf_delparam(idf, idf->pfirst); |
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lu_done(&idf->ptab); |
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} |
