add read-at-point function

1 files changed, 47 insertions, 0 deletions

diff --git a/files.c b/files.c
index dfeb3b2..37aac48 100644
--- a/files.c
+++ b/files.c
@@ -1,3 +1,5 @@
+#define _POSIX_C_SOURCE 2 
+
 #include <stdio.h>
 #include <string.h>
 #include "gramscii.h"
@@ -37,6 +39,7 @@ void write_file(FILE *fc){
 	fclose(fout);
 	modified = 0;
 	get_key(fc, "File saved.");
+	redraw();
 }
 
 void check_modified(FILE *fc){
@@ -83,3 +86,47 @@ void new_file(FILE *fc){
 	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);
+	}
+}