From a74b46c7a4d1ccad6934aeb00915a2fd383f072c Mon Sep 17 00:00:00 2001
From: KatolaZ <katolaz@freaknet.org>
Date: Wed, 24 Jul 2019 17:00:05 +0100
Subject: first steps towards script-mode

---
 gramscii.c | 163 ++++++++++++++++++++++++++++++++++++++-----------------------
 1 file changed, 101 insertions(+), 62 deletions(-)

(limited to 'gramscii.c')

diff --git a/gramscii.c b/gramscii.c
index 69f7b10..4152b96 100644
--- a/gramscii.c
+++ b/gramscii.c
@@ -30,6 +30,8 @@
 
 #include "config.h"
 
+#include "arg.h"
+
 #define MOVE   0x00
 #define BOX    0x01
 #define ARROW  0x02
@@ -98,13 +100,26 @@ char modified;
 char fname[256];
 
 char visual;
+char silent;
+
+char *argv0;
 
 struct termios t1, t2, t3;
 
 
-void cleanup(int s){
+void dump_lines(){
+	int i;
+	for (i=0; i<HEIGHT; i++){
+		printf("%s\n", screen[i]);
+	}
+}
 
-	printf("\033[;H\033[2J");
+void cleanup(int s){
+	
+	if (!silent)
+		printf("\033[;H\033[2J");
+	if (silent)
+		dump_lines();
 	tcsetattr(0, TCSANOW, &t1);
 	fflush(stdout);
 	exit(0);
@@ -135,6 +150,8 @@ char* state_str(){
 
 void status_bar(){
 
+	if (silent)
+		return;
 	printf("\033[%d;1f\033[7m", HEIGHT+1);
 	printf("%*s", WIDTH-1, "");
 	printf("\033[%d;1f\033[7m", HEIGHT+1);
@@ -151,32 +168,38 @@ void status_bar(){
 	fflush(stdout);
 }
 
-char get_key(char *msg){
+char get_key(FILE *fc, char *msg){
 
+	if (silent)
+		return 0;
 	printf("\033[%d;1f\033[7m", HEIGHT+1);
 	printf("%*s", WIDTH, "");
 	printf("\033[%d;1f\033[7m", HEIGHT+1);
 	printf("%s", msg);
 	printf("\033[0m");
 	fflush(stdout);
-	return getchar();
+	return fgetc(fc);
 }
 
-void get_string(char *msg, char *s, int sz){
+void get_string(FILE *fc, char *msg, char *s, int sz){
 
-	printf("\033[%d;1f\033[7m", HEIGHT+1);
-	printf("%*s", WIDTH, "");
-	printf("\033[%d;1f\033[7m", HEIGHT+1);
-	/* We must activate echo now */
-	t3 = t2;
-	t3.c_lflag |= (ECHO | ICANON);
-	tcsetattr(0, TCSANOW, &t3);
-	printf("%s", msg);
-	printf("\033[0m");
-	fgets(s, sz, stdin);
+	if (!silent){
+		printf("\033[%d;1f\033[7m", HEIGHT+1);
+		printf("%*s", WIDTH, "");
+		printf("\033[%d;1f\033[7m", HEIGHT+1);
+	
+		/* We must activate echo now */
+		t3 = t2;
+		t3.c_lflag |= (ECHO | ICANON);
+		tcsetattr(0, TCSANOW, &t3);
+		printf("%s", msg);
+		printf("\033[0m");
+	}
+	fgets(s, sz, fc);
 	s[strlen(s)-1] = '\0';
 	tcsetattr(0, TCSANOW, &t2);
-	fflush(stdout);
+	if (!silent)
+		fflush(stdout);
 }
 
 int is_yes(char c){
@@ -186,6 +209,8 @@ int is_yes(char c){
 /*** Screen management ***/
 
 void show_cursor(){
+	if (silent)
+		return;
 	printf("\033[%d;%df", y+1, x+1);
 	fflush(stdout);
 }
@@ -201,12 +226,16 @@ void set_xy(int x, int y, char c){
 
 void draw_xy(int x, int y, char c){
 	/* FIXME: check if x and y are valid!!!! */
+	if (silent)
+		return;
 	printf("\033[%d;%df",y+1,x+1);
 	putchar(c);
 	fflush(stdout);
 }
 
 void update_current(){
+	if (silent)
+		return;
 	printf("\033[%d'%df",y+1,x+1);
 	putchar(screen[y][x]);
 	fflush(stdout);
@@ -261,6 +290,8 @@ void reset_styles(){
 void redraw(){
 	int i;
 
+	if (silent)
+		return;
 	printf("\033[2J\033[1;1H");
 	for (i=0;i<HEIGHT;i++){
 		fprintf(stdout,"%s\n",screen[i]);
@@ -366,6 +397,8 @@ int progr_y(int dir){
 }
 
 void set_video(int v){
+	if (silent)
+		return;
 	printf("\033[%dm", v);
 	fflush(stdout);
 }
@@ -436,12 +469,12 @@ int change_style(char c){
 
 /*****  text, box, arrows  *****/
 
-void get_text(){
+void get_text(FILE *fc){
 	char c;
 	int orig_x = x;
 
 	redraw();
-	while((c=getchar())!=EOF && c != 27){
+	while((c=fgetc(fc))!=EOF && c != 27){
 		if(c=='\n'){
 			set_cur(BG);
 			y += 1;
@@ -493,13 +526,13 @@ void draw_box(int x1, int y1, int fix){
 	show_cursor();
 }
 
-void get_box(){
+void get_box(FILE *fc){
 	char c;
 	int orig_x=x, orig_y=y;
 	redraw();
 	step = 1;
 	draw_box(x,y,NOFIX);
-	while((c=getchar())!=EOF && c != 27 && c!= 'b' && c != '\n'){
+	while((c=fgetc(fc))!=EOF && c != 27 && c!= 'b' && c != '\n'){
 		if (change_style(c))
 			goto update_box;
 		if (!move_around(c)) 
@@ -560,7 +593,7 @@ void draw_arrow(int x, int y, char *a, int a_len, int fix){
 	show_cursor();
 }
 
-void get_arrow(){
+void get_arrow(FILE *fc){
 
 	char c;
 	int orig_x=x, orig_y=y, arrow_len;
@@ -577,7 +610,7 @@ void get_arrow(){
 	redraw();
 	step = 1;
 	draw_arrow(x,y, arrow, 0, NOFIX);
-	while((c=getchar())!=EOF && c != 27 && c!= 'a' && c != '\n'){
+	while((c=fgetc(fc))!=EOF && c != 27 && c!= 'a' && c != '\n'){
 		if (change_style(c))
 			goto update_arrow;
 		if (!move_around(c))
@@ -625,12 +658,12 @@ void do_delete(int x1, int y1){
 }
 
 
-void delete(){
+void delete(FILE *fc){
 	char c;
 	int orig_x = x, orig_y = y;
 	status_bar();
 	show_cursor();
-	while((c=getchar())!=EOF && c!=27 && c!= 'x' && c != '\n'){
+	while((c=fgetc(fc))!=EOF && c!=27 && c!= 'x' && c != '\n'){
 		if (!move_around(c)) continue;
 		check_bound();
 		do_delete(orig_x, orig_y);
@@ -647,65 +680,65 @@ void delete(){
 
 /*** File management ***/
 
-void write_file(){
-	FILE *f;
+void write_file(FILE *fc){
+	FILE *fout;
 	int i;
 
 	if (!fname[0] || force_new){
-		get_string("Write to: ", fname, 255);
-		if ((f=fopen(fname, "r"))!=NULL){
-			if (!is_yes(get_key("File exists. Overwrite [y/n]?")) ){
-				fclose(f);
+		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(f);
+			fclose(fout);
 		}
 	}
-	if((f=fopen(fname, "w"))==NULL){
-		get_key("Error opening file.");
+	if((fout=fopen(fname, "w"))==NULL){
+		get_key(fc, "Error opening file.");
 		return;
 	}
 	for (i=0; i<HEIGHT; i++){
-		fprintf(f, "%s\n", screen[i]);
+		fprintf(fout, "%s\n", screen[i]);
 	}
-	fclose(f);
+	fclose(fout);
 	modified = 0;
-	get_key("File saved.");
+	get_key(fc, "File saved.");
 }
 
-void check_modified(){
+void check_modified(FILE *fc){
 
 	if (modified){
-		if (!is_yes(get_key("Unsaved changes. Write to file [y/n]?")) ){
+		if (!is_yes(get_key(fc, "Unsaved changes. Write to file [y/n]?")) ){
 			return;
 		}
 		write_file(0);
 	}
 }
 
-void load_file(){
+void load_file(FILE *fc){
 
 	char newfname[256];
-	FILE *f;
+	FILE *fin;
 	int i;
 
-	get_string("Load file: ", newfname, 255);
-	if ((f=fopen(newfname, "r")) != NULL){
+	get_string(fc, "Load file: ", newfname, 255);
+	if ((fin=fopen(newfname, "r")) != NULL){
 		i = 0;
-		while((fgets(screen[i], WIDTH+2, f)) != NULL && i<HEIGHT)
+		while((fgets(screen[i], WIDTH+2, fin)) != NULL && i<HEIGHT)
 			screen[i++][WIDTH-1]='\0';
 		for(;i<HEIGHT; i++){
 			erase_line(screen[i]);
 		}
-		fclose(f);
+		fclose(fin);
 	}
 	strcpy(fname, newfname);
 	modified=0;
 	redraw();
 }
 
-void new_file(){
-	check_modified();
+void new_file(FILE *fc){
+	check_modified(fc);
 	erase_screen();
 	go_to(HOME);
 	redraw();
@@ -716,7 +749,7 @@ void new_file(){
 /*** Visual ***/
 
 
-void visual_box(){
+void visual_box(FILE *fc){
 	int orig_x =x, orig_y = y;
 	char c, f = BG;
 
@@ -724,10 +757,10 @@ void visual_box(){
 	step = 1;
 	set_video(VIDEO_REV);
 	draw_box(x,y,NOFIX);
-	while((c=getchar())!=EOF && c != 27 && c!= 'v' && c != '\n'){
+	while((c=fgetc(fc))!=EOF && c != 27 && c!= 'v' && c != '\n'){
 		if (!move_around(c)) switch(c){
 			case 'f':/* fill */
-				f = get_key("fill char: "); /** FALLTHROUGH **/
+				f = get_key(fc, "fill char: "); /** FALLTHROUGH **/
 			case 'x':/* erase */
 				erase_box(orig_x, orig_y, f);
 				modified = 1;
@@ -805,50 +838,50 @@ void init(){
 
 /*** Commands ***/
 
-void commands(){
+void commands(FILE *fc){
 
 	char c;
-	while((c=getchar())!=EOF){
+	while((c=fgetc(fc))!=EOF){
 		if (!change_style(c) && !move_around(c)){
 			switch(c){
 				case 'i':
 					state = TEXT;
-					get_text();
+					get_text(fc);
 					break;
 				case 'R':
 					redraw();
 					break;
 				case 'b':
 					state = BOX;
-					get_box();
+					get_box(fc);
 					break;
 				case 'a':
 					state = ARROW;
-					get_arrow();
+					get_arrow(fc);
 					break;
 				case 'W':
 					force_new = 1;/** FALLTHROUGH **/
 				case 'w':
-					write_file();
+					write_file(fc);
 					break;
 				case 'e':
-					check_modified();/** FALLTHROUGH **/
+					check_modified(fc);/** FALLTHROUGH **/
 				case 'E':
-					load_file();
+					load_file(fc);
 					break;
 				case 'N':
-					new_file();
+					new_file(fc);
 					break;
 				case 'x':
 					state = DEL;
-					delete();
+					delete(fc);
 					break;
 				case 'v':
 					state = VIS;
-					visual_box();
+					visual_box(fc);
 					break;
 				case 'q':
-					check_modified();/** FALLTHROUGH **/
+					check_modified(fc);/** FALLTHROUGH **/
 				case 'Q':
 					cleanup(0);
 					exit(0);
@@ -867,9 +900,15 @@ void commands(){
 
 int main(int argc, char *argv[]){
 
+	ARGBEGIN {
+		case 's':
+			silent = 1;
+			break;
+	} ARGEND;	
+
 	init();
 
-	commands();
+	commands(stdin);
 	cleanup(0);
 	return 0;
 }
-- 
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