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-rw-r--r--toys/pending/more.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/toys/pending/more.c b/toys/pending/more.c
new file mode 100644
index 00000000..78eb4e9c
--- /dev/null
+++ b/toys/pending/more.c
@@ -0,0 +1,121 @@
+/* more.c - View FILE (or stdin) one screenful at a time.
+ *
+ * Copyright 2013 Bilal Qureshi <bilal.jmi@gmail.com>
+ *
+ * No Standard
+
+USE_MORE(NEWTOY(more, NULL, TOYFLAG_USR|TOYFLAG_BIN))
+
+config MORE
+ bool "more"
+ default n
+ help
+ Usage: more [FILE]...
+
+ View FILE (or stdin) one screenful at a time.
+*/
+
+#define FOR_more
+#include "toys.h"
+#include <signal.h>
+
+GLOBALS(
+ struct termios inf;
+ int cin_fd;
+)
+
+static void signal_handler(int sig)
+{
+ tcsetattr(TT.cin_fd, TCSANOW, &TT.inf);
+ xputc('\n');
+ signal(sig, SIG_DFL);
+ raise(sig);
+ _exit(sig | 128);
+}
+
+static void do_cat_operation(int fd, char *name)
+{
+ char *buf = NULL;
+
+ if(toys.optc > 1) printf(":::::::::::::::::::::::\n"
+ "%s\n:::::::::::::::::::::::\n",name);
+ for (; (buf = get_line(fd)); free(buf)) printf("%s\n", buf);
+}
+
+void more_main()
+{
+ int ch, lines, input_key = 0, disp_more, more_msg_len;
+ unsigned rows = 24, cols = 80;
+ struct stat st;
+ struct termios newf;
+ FILE *fp, *cin;
+
+ if (!isatty(STDOUT_FILENO) || !(cin = fopen("/dev/tty", "r"))) {
+ loopfiles(toys.optargs, do_cat_operation);
+ toys.exitval = 0;
+ return;
+ }
+
+ TT.cin_fd = fileno(cin);
+ tcgetattr(TT.cin_fd,&TT.inf);
+ //Prepare terminal for input
+ memcpy(&newf, &TT.inf, sizeof(struct termios));
+ newf.c_lflag &= ~(ICANON | ECHO);
+ newf.c_cc[VMIN] = 1;
+ newf.c_cc[VTIME] = 0;
+ tcsetattr(TT.cin_fd, TCSANOW, &newf);
+
+ sigatexit(signal_handler);
+
+ do {
+ fp = stdin;
+ if (*toys.optargs && !(fp = fopen(*toys.optargs, "r"))) {
+ perror_msg("'%s'", *toys.optargs);
+ continue;
+ }
+ st.st_size = disp_more = more_msg_len = lines = 0;
+ fstat(fileno(fp), &st);
+ terminal_size(&cols, &rows);
+ rows--;
+ if(toys.optc > 1) {
+ printf(":::::::::::::::::::::::\n"
+ "%s\n:::::::::::::::::::::::\n",*toys.optargs);
+ rows -= 3;
+ }
+
+ while ((ch = getc(fp)) != EOF) {
+ if (input_key != 'r' && disp_more) {
+ more_msg_len = printf("--More-- ");
+ if (st.st_size)
+ more_msg_len += printf("(%d%% of %lld bytes)",
+ (int) (100 * ( (double) ftell(fp) / (double) st.st_size)),
+ st.st_size);
+ fflush(NULL);
+
+ while (1) {
+ input_key = getc(cin);
+ input_key = tolower(input_key);
+ printf("\r%*s\r", more_msg_len, ""); // Remove previous msg
+ if (input_key == ' ' || input_key == '\n' || input_key == 'q'
+ || input_key == 'r') break;
+ more_msg_len = printf("(Enter:Next line Space:Next page Q:Quit R:Show the rest)");
+ }
+ more_msg_len = lines = disp_more = 0;
+ if (input_key == 'q') goto stop;
+ terminal_size(&cols, &rows);
+ rows--;
+ }
+
+ if (ch == '\n')
+ if (++lines >= rows || input_key == '\n') disp_more = 1;
+ putchar(ch);
+ }
+ fclose(fp);
+ fflush(NULL);
+ } while (*toys.optargs && *++toys.optargs);
+
+stop:
+ tcsetattr(TT.cin_fd, TCSANOW, &TT.inf);
+ fclose(cin);
+ toys.exitval = 0;
+}