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#define _POSIX_C_SOURCE 200112L
#include <stdio.h>
#include <string.h>
#include "gramscii.h"
/** extern declarations **/
extern lineset_t screen; /* what is visualised */
extern int WIDTH, HEIGHT;
extern int force_new;
extern char modified; /* set to 1 if screen modified since last save */
extern char fname[256];
/*** File management ***/
void write_file(FILE *fc){
FILE *fout;
int i, ne;
if (!fname[0] || force_new){
get_string(fc, "Write to: ", fname, 255);
if ((fout=fopen(fname, "r"))!=NULL){
if (!is_yes(get_key(fc,"File exists. Overwrite [y/n]?")) ){
fclose(fout);
return;
}
fclose(fout);
}
}
if((fout=fopen(fname, "w"))==NULL){
get_key(fc, "Error opening file.");
return;
}
ne = 0;
for (i=0; i<HEIGHT; i++){
if (strlen(screen.l[i].s)){/* remove trailing blank lines */
/* put the empty lines preceeding the current non-empty one */
while (ne--)
fprintf(fout, "\n");
fprintf(fout, "%s\n", screen.l[i].s);
ne = 0;
}
else ne++;
}
fclose(fout);
modified = 0;
get_key(fc, "File saved.");
redraw();
}
void check_modified(FILE *fc){
if (modified){
if (!is_yes(get_key(fc, "Unsaved changes. Write to file [y/n]?")) ){
return;
}
write_file(fc);
}
}
void load_file(FILE *fc){
char newfname[256];
FILE *fin;
int i;
get_string(fc, "Load file: ", newfname, 255);
if ((fin=fopen(newfname, "r")) != NULL){
i = 0;
while((fgets(screen.l[i].s, WIDTH+1, fin)) != NULL && i<HEIGHT){
screen.l[i].lst = strlen(screen.l[i].s) - 2;
screen.l[i].n = i;
screen.l[i].s[strlen(screen.l[i].s)-1]='\0';
i++;
}
for(;i<HEIGHT; i++){
erase_line(i);
}
fclose(fin);
}
strcpy(fname, newfname);
modified=0;
redraw();
}
void new_file(FILE *fc){
check_modified(fc);
erase_screen();
go_to(HOME);
redraw();
fname[0] = '\0';
modified=0;
}
void read_file_at(FILE *fc, int xl, int yl){
char nfname[512], tmp[512], *fptr, *tptr;
FILE *fin;
int i, j;
char ftype;
get_string(fc, "Read file: ", nfname, 511);
fptr = nfname;
while(*fptr && _isblank(*fptr))
fptr ++;
if (*fptr == '!'){
fin = popen(++fptr, "r");
ftype = FPIPE;
}
else {
fin = fopen(fptr, "r");
ftype = FFILE;
}
if (fin != NULL){
copy_lines_to_ring(0, HEIGHT-1, PRV_STATE);
i = yl;
while((fgets(tmp, WIDTH+1, fin)) != NULL && i<HEIGHT){
j = xl;
tptr = tmp;
if (strlen(tmp))
tmp[strlen(tmp) - 1] = '\0';
ensure_line_length(& (screen.l[i]), xl + strlen(tmp) + 1);
while (*tptr && j < WIDTH){
set_xy(j, i, *tptr);
j++;
tptr ++;
}
i++;
}
if (ftype == FFILE)
fclose(fin);
else
pclose(fin);
modified = 1;
redraw();
copy_lines_to_ring(yl, i-1, NEW_STATE);
}
}
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