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- /* Copyright (C) 1990, 1992, 1993 Free Software Foundation, Inc.
-
- This file is part of Oleo, the GNU Spreadsheet.
-
- Oleo is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- Oleo is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with Oleo; see the file COPYING. If not, write to
- the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- #include "funcdef.h"
- #include <stdio.h>
- #include <ctype.h>
- #include "sysdef.h"
- #include "global.h"
- #include "cell.h"
- #include "io-generic.h"
- #include "io-abstract.h"
- #include "io-utils.h"
- #include "lists.h"
- #include "ref.h"
- #include "parse.h"
- #include "regions.h"
- #include "cmd.h"
-
-
-
- /* This reads/writes a subset of the SC public-domain spreadsheet's
- file-format. Note that since SC has no way of encoding some information
- about a cell, writing a spread out in SC format, then reading it back in
- will result in the loss of some information (most important: cell formats)
- */
-
- static int
- get_range (pp,rp)
- char ** pp;
- struct rng * rp;
- {
- int byte;
- char *p;
- struct var *v;
-
-
- while(isspace(**pp))
- (*pp)++;
- byte=parse_cell_or_range(pp,rp);
- if(byte)
- return 0;
- for(p= *pp;*p && !isspace(*p);p++)
- ;
- v=find_var(*pp,p-*pp);
- if(!v)
- return 1;
- *pp=p;
- *rp=v->v_rng;
- return 0;
- }
-
- void
- sc_read_file (fp,ismerge)
- FILE * fp;
- int ismerge;
- {
- char buf[2048];
- int lineno;
- char *ptr;
- int n;
- struct rng rng;
- int olda0;
-
- olda0=a0;
- a0=1;
- lineno=0;
- if(!ismerge)
- clear_spreadsheet();
- while(fgets(buf,sizeof(buf),fp)) {
- lineno++;
- if(lineno%50==0)
- io_info_msg("Line %d",lineno);
- if(buf[0]=='#' || buf[0]=='\n')
- continue;
- if(!strncmp(buf,"set ",4)) {
- /* ... */
- } else if(!strncmp(buf,"format ",7)) {
- ptr=buf+7;
- if(get_range(&ptr,&rng))
- continue;
- n=astol(&ptr);
- set_width(rng.lc,n);
- } else if(!strncmp(buf,"hide ",5)) {
- ptr=buf+5;
- if(get_range(&ptr,&rng))
- continue;
- set_width(rng.lc,0);
- } else if(!strncmp(buf,"mdir ",5)) {
- /* ... */
- } else if(!strncmp(buf,"define ",7)) {
- char *eptr;
-
- ptr=buf+7;
- while(isspace(*ptr))
- ptr++;
- if(*ptr!='"') {
- io_error_msg("Line %d: No starting \" in define",lineno);
- continue;
- }
- ptr++;
- for(eptr=ptr; *eptr && *eptr!='"';eptr++)
- ;
- if(!*eptr) {
- io_error_msg("Line %d: No starting \" in define",lineno);
- continue;
- }
- ptr=new_var_value(ptr,eptr-ptr,eptr+1);
- if(ptr)
- io_error_msg("Line %d: %s",ptr);
- } else if(!strncmp(buf,"leftstring ",11) ||
- !strncmp(buf,"rightstring ",12)) {
- CELL *cp;
-
- ptr=buf+11;
- if(get_range(&ptr,&rng))
- continue;
- while(isspace(*ptr))
- ptr++;
- if(*ptr=='=')
- ptr++;
- new_value(rng.lr,rng.lc,ptr);
- cp=find_cell(rng.lr,rng.lc);
- if(buf[0]=='l')
- SET_JST(cp,JST_LFT);
- else
- SET_JST(cp,JST_RGT);
-
- } else if(!strncmp(buf,"let ",4)) {
- ptr=buf+4;
- if(get_range(&ptr,&rng))
- continue;
- while(isspace(*ptr))
- ptr++;
- if(*ptr=='=')
- ptr++;
- new_value(rng.lr,rng.lc,ptr);
- } else
- io_error_msg("Line %d: Can't parse %s",lineno,buf);
- }
- a0=olda0;
- io_recenter_all_win();
- }
-
- static FILE *sc_fp;
- static struct rng *sc_rng;
- static void
- sc_write_var (name,var)
- char * name;
- struct var * var;
- {
- if(var->var_flags==VAR_UNDEF && (!var->var_ref_fm || var->var_ref_fm->refs_used==0))
- return;
- switch(var->var_flags) {
- case VAR_UNDEF:
- break;
- case VAR_CELL:
- if(var->v_rng.lr>=sc_rng->lr && var->v_rng.lr<=sc_rng->hr && var->v_rng.lc>=sc_rng->lc && var->v_rng.lc<=sc_rng->hc)
- (void)fprintf(sc_fp,"define \"%s\" %s\n",var->var_name,cell_name(var->v_rng.lr,var->v_rng.lc));
- break;
- case VAR_RANGE:
- if(var->v_rng.lr<sc_rng->lr || var->v_rng.hr>sc_rng->hr || var->v_rng.lc<sc_rng->lc || var->v_rng.hc>sc_rng->hc)
- break;
-
- (void)fprintf(sc_fp,"define \"%s\" %s\n",var->var_name,range_name(&(var->v_rng)));
- break;
- #ifdef TEST
- default:
- panic("Unknown var type %d",var->var_flags);
- break;
- #endif
- }
- }
-
- void
- sc_write_file (fp,rng)
- FILE * fp;
- struct rng * rng;
- {
- unsigned short w;
- CELLREF r,c;
- CELL *cp;
- char *ptr;
- int olda0;
-
- if(!rng)
- rng= &all_rng;
-
- olda0=a0;
- a0=1;
- (void)fprintf(fp,"# This file was created by Oleo, for use by the Spreadsheet Calculator\n");
- (void)fprintf(fp,"# You probably don't want to edit it.\n\n");
-
- find_widths(rng->lc,rng->hc);
- while(w=next_width(&c))
- fprintf(fp,"format %s %d ???\n",cell_name(MIN_ROW,c),w);
- sc_fp=fp;
- sc_rng=rng;
- for_all_vars(sc_write_var);
- find_cells_in_range(rng);
- while(cp=next_row_col_in_range(&r,&c)) {
- switch(GET_TYP(cp)) {
- case TYP_STR:
- if((GET_JST(cp)==JST_DEF && default_jst==JST_RGT) || GET_JST(cp)==JST_RGT)
- ptr="right";
- else ptr="left";
- fprintf(fp,"%sstring %s = %s\n",ptr,cell_name(r,c),decomp(r,c,cp));
- decomp_free();
- break;
- case 0:
- break;
- default:
- fprintf(fp,"let %s = %s\n",cell_name(r,c),decomp(r,c,cp));
- decomp_free();
- break;
- }
- }
- a0=olda0;
- }
-
- int
- sc_set_options (set_opt,option)
- int set_opt;
- char * option;
- {
- return -1;
- }
-
- void
- sc_show_options ()
- {
- io_text_line("File format: sc (Public domain spreadsheet calculator)");
- }
-