parse_init.cpp

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/* This file is part of Cloudy and is copyright (C)1978-2017 by Gary J. Ferland and
 * others.  For conditions of distribution and use see copyright notice in license.txt */
/*ParseInit bring an initialization file into input stream before parse  */
#include "cddefines.h"
#include "input.h"
#include "trace.h"
#include "parser.h"

void ParseInit(Parser &p)
{
        char *ipEndL;
        string chName;
        long int ip, 
          k;
        FILE *ioInitFile; /* will use this as pointer to ini file */

        DEBUG_ENTRY( "ParseInit()" );

        /*bring an initialization file into input stream before parsing  */

        /* check whether single quote on line, this was used in c90 */
        if( p.nMatch( "\'" ) )
        {
                fprintf( ioQQQ, 
                        " ParseInit found a single quote on this line.  This was used for file names in C90, but double quotes are used now.\n");
                fprintf( ioQQQ, " The single quote has been ignored.\n");
        }

        if( p.nMatch( "\"" ) )
        {
                /* 
                 * if a quote occurs on the line then get the ini file name 
                 * this will also set the name in chCard and OrgCard to spaces
                 * so later keywords do not key off it
                 */
                if (p.GetQuote( chName ) )
                        p.StringError();
        }
        else
        {
                /* no quote appeared, so this is the default name, cloudy.ini */
                chName = "cloudy.ini";
        }

        /* at this point we have init file name, now make full name 
         * this can be a local file, or on the path if the key path appears */

        /* option to get cloudy.ini from a path */
        if( p.nMatch("PATH") )
        {
                ioInitFile = open_data( chName.c_str(), "r" );
        }
        else
        {
                /* just use file name, and try to open file in current directory first */
                ioInitFile = open_data( chName.c_str(), "r", AS_LOCAL_DATA );
        }

        /* at this point the init file is open, now bring it into the command stack */
        input.nSaveIni = 1;
        ip = NKRD + 1 - input.nSaveIni;
        while( (read_whole_line( input.chCardSav[ip-1],(int)sizeof(input.chCardSav[ip-1]),ioInitFile)!=NULL ) )
        {
                /* add extra space to be trailing space, needed for commands that end with space */
                ipEndL = strrchr( input.chCardSav[ip-1] , '\n' );
                /* make sure that we found the newline */
                if(ipEndL == NULL )
                {
                        fprintf(ioQQQ," ParseInit read in a init file line that did not end with a newline\n");
                        fprintf(ioQQQ," line was the following=>%s<=\n",input.chCardSav[ip-1]);
                        cdEXIT(EXIT_FAILURE);
                }
                /* >>chng 01 oct 22, add cast */
                /* find offset to end of line, the cr */
                k = (long)(ipEndL - input.chCardSav[ip-1]);
                /* replace cr with space */
                input.chCardSav[ip-1][k] = ' ';
                /* add extra space */
                input.chCardSav[ip-1][k+1] = ' ';
                /* finally null terminate the line */
                input.chCardSav[ip-1][k+2] = '\0';
                /* line starting with space is one way to end input stream */
                if( input.chCardSav[ip-1][0]==' ' ) break; 
                /* totally ignore these lines 
                 * >>chng 06 sep 04 use routine to check for comments */
                if( lgInputComment(input.chCardSav[ip-1]) /*input.chCardSav[ip-1][0]=='#' || input.chCardSav[ip-1][0]=='*' ||
                        input.chCardSav[ip-1][0]=='%' || input.chCardSav[ip-1][0]=='/'*/ ) 
                        continue;

                /* print input lines if trace specified */
                if( trace.lgTrace )
                {
                        fprintf( ioQQQ,"initt=%s=\n",input.chCardSav[ip-1] );
                }

                input.nSaveIni += 1;
                ip = NKRD + 1 - input.nSaveIni;
                if( ip <= input.nSave )
                {
                        fprintf( ioQQQ, 
                                " Too many ini lines.  Total of all input and ini lines cannot exceed NKRD, presently%4i\n", 
                          NKRD );
                        cdEXIT(EXIT_FAILURE);
                }
        }
        fclose(ioInitFile);
        /* last one with real data is NKRD+1-nSaveIni */
        input.nSaveIni -= 1;
        return;
}