Text hook

src/texthook.cpp

@@ -0,0 +1,77 @@
+#include <stdio.h>
+#include "texthook.h"
+
+#ifdef __EMSCRIPTEN__  // ----------------------------------------------
+#include <emscripten.h>
+
+void texthook_character(int page, int character) {
+	EM_ASM_({ xsystem35.texthook.message(String.fromCharCode($0), $1); },
+			character, page);
+}
+
+EM_JS(void, texthook_newline, (void), {
+	xsystem35.texthook.newline();
+});
+
+EM_JS(void, texthook_nextpage, (void), {
+	xsystem35.texthook.nextpage();
+});
+
+EM_JS(void, texthook_keywait, (void), {
+	xsystem35.texthook.keywait();
+});
+
+#elif defined(TEXTHOOK_PRINT)  // --------------------------------------
+
+static int newlines = 0;
+
+void texthook_character(int page, int c) {
+	if (newlines)
+		printf("%d:", page);
+	newlines = 0;
+
+	if (c <= 0x7f) {
+		putchar(c);
+	} else if (c <= 0x7ff) {
+		putchar(0xc0 | c >> 6);
+		putchar(0x80 | (c & 0x3f));
+	} else {
+		putchar(0xe0 | c >> 12);
+		putchar(0x80 | (c >> 6 & 0x3f));
+		putchar(0x80 | (c & 0x3f));
+	}
+}
+
+void texthook_newline(void) {
+	if (newlines < 2) {
+		putchar('\n');
+		newlines++;
+	}
+}
+
+void texthook_nextpage(void) {
+	while (newlines < 2) {
+		putchar('\n');
+		newlines++;
+	}
+}
+
+void texthook_keywait(void) {
+	texthook_newline();
+}
+
+#else  // --------------------------------------------------------------
+
+void texthook_character(int page, int c) {
+}
+
+void texthook_newline(void) {
+}
+
+void texthook_nextpage(void) {
+}
+
+void texthook_keywait(void) {
+}
+
+#endif  // -------------------------------------------------------------