Move not-curses code into interstingtimes.c

4 files changed, 129 insertions, 121 deletions

diff --git a/lib/interestingtimes.c b/lib/interestingtimes.c
new file mode 100644
index 0000000..cea5039
--- /dev/null
+++ b/lib/interestingtimes.c
@@ -0,0 +1,124 @@
+/* interestingtimes.c - cursor control
+ *
+ * Copyright 2015 Rob Landley <rob@landley.net>
+ */
+
+#include "toys.h"
+
+// Quick and dirty query size of terminal, doesn't do ANSI probe fallback.
+// set x=80 y=25 before calling to provide defaults. Returns 0 if couldn't
+// determine size.
+
+int terminal_size(unsigned *xx, unsigned *yy)
+{
+  struct winsize ws;
+  unsigned i, x = 0, y = 0;
+  char *s;
+
+  // stdin, stdout, stderr
+  for (i=0; i<3; i++) {
+    memset(&ws, 0, sizeof(ws));
+    if (!ioctl(i, TIOCGWINSZ, &ws)) {
+      if (ws.ws_col) x = ws.ws_col;
+      if (ws.ws_row) y = ws.ws_row;
+
+      break;
+    }
+  }
+  s = getenv("COLUMNS");
+  if (s) sscanf(s, "%u", &x);
+  s = getenv("LINES");
+  if (s) sscanf(s, "%u", &y);
+
+  // Never return 0 for either value, leave it at default instead.
+  if (xx && x) *xx = x;
+  if (yy && y) *yy = y;
+
+  return x || y;
+}
+
+// Reset terminal to known state, saving copy of old state if old != NULL.
+int set_terminal(int fd, int raw, struct termios *old)
+{
+  struct termios termio;
+
+  // Fetch local copy of old terminfo, and copy struct contents to *old if set
+  if (!tcgetattr(fd, &termio) && old) *old = termio;
+
+  // the following are the bits set for an xterm. Linux text mode TTYs by
+  // default add two additional bits that only matter for serial processing
+  // (turn serial line break into an interrupt, and XON/XOFF flow control)
+
+  // Any key unblocks output, swap CR and NL on input
+  termio.c_iflag = IXANY|ICRNL|INLCR;
+  if (toys.which->flags & TOYFLAG_LOCALE) termio.c_iflag |= IUTF8;
+
+  // Output appends CR to NL, does magic undocumented postprocessing
+  termio.c_oflag = ONLCR|OPOST;
+
+  // Leave serial port speed alone
+  // termio.c_cflag = C_READ|CS8|EXTB;
+
+  // Generate signals, input entire line at once, echo output
+  // erase, line kill, escape control characters with ^
+  // erase line char at a time
+  // "extended" behavior: ctrl-V quotes next char, ctrl-R reprints unread chars,
+  // ctrl-W erases word
+  termio.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE|IEXTEN;
+
+  if (raw) cfmakeraw(&termio);
+
+  return tcsetattr(fd, TCSANOW, &termio);
+}
+
+// Scan stdin for a keypress, parsing known escape sequences
+// seqs is array of char * strings, ends with NULL ptr
+// Returns: 0-255=literal, -1=EOF, -2=NONE, 256-...=index into seq
+// scratch space is necessary because last char of !seq could start new seq
+// Zero out first byte of scratch before first call to scan_key
+// block=0 allows fetching multiple characters before updating display
+int scan_key(char *scratch, char **seqs, int block)
+{
+  struct pollfd pfd;
+  int maybe, i, j;
+  char *test;
+
+  for (;;) {
+    pfd.fd = 0;
+    pfd.events = POLLIN;
+    pfd.revents = 0;
+
+    // check sequences
+    maybe = 0;
+    if (*scratch) {
+      for (i = maybe = 0; (test = seqs[i]); i++) {
+        for (j = 0; j<*scratch; j++) if (scratch[j+1] != test[j]) break;
+        if (j == *scratch) {
+          maybe = 1;
+          if (!test[j]) {
+            // We recognized current sequence: consume and return
+            *scratch = 0;
+            return 256+i;
+          }
+        }
+      }
+      // If current data can't be a known sequence, return next raw char
+      if (!maybe) break;
+    }
+
+    // Need more data to decide
+
+    // 30 miliseconds is about the gap between characters at 300 baud 
+    if (maybe || !block) if (!xpoll(&pfd, 1, 30*maybe)) break;
+
+    if (1 != read(0, scratch+1+*scratch, 1)) return -1;
+    ++*scratch;
+  }
+
+  // Was not a sequence
+  if (!*scratch) return -2;
+  i = scratch[1];
+  if (--*scratch) memmove(scratch+1, scratch+2, *scratch);
+
+  return i;
+}
diff --git a/lib/lib.c b/lib/lib.c
index 2f7d28f..ea65f77 100644
--- a/lib/lib.c
+++ b/lib/lib.c
@@ -595,72 +595,6 @@ void base64_init(char *p)
   *(p++) = '/';
 }
 
-// Quick and dirty query size of terminal, doesn't do ANSI probe fallback.
-// set x=80 y=25 before calling to provide defaults. Returns 0 if couldn't
-// determine size.
-
-int terminal_size(unsigned *xx, unsigned *yy)
-{
-  struct winsize ws;
-  unsigned i, x = 0, y = 0;
-  char *s;
-
-  // stdin, stdout, stderr
-  for (i=0; i<3; i++) {
-    memset(&ws, 0, sizeof(ws));
-    if (!ioctl(i, TIOCGWINSZ, &ws)) {
-      if (ws.ws_col) x = ws.ws_col;
-      if (ws.ws_row) y = ws.ws_row;
-
-      break;
-    }
-  }
-  s = getenv("COLUMNS");
-  if (s) sscanf(s, "%u", &x);
-  s = getenv("LINES");
-  if (s) sscanf(s, "%u", &y);
-
-  // Never return 0 for either value, leave it at default instead.
-  if (xx && x) *xx = x;
-  if (yy && y) *yy = y;
-
-  return x || y;
-}
-
-// Reset terminal to known state, saving copy of old state if old != NULL.
-int set_terminal(int fd, int raw, struct termios *old)
-{
-  struct termios termio;
-
-  // Fetch local copy of old terminfo, and copy struct contents to *old if set
-  if (!tcgetattr(fd, &termio) && old) *old = termio;
-
-  // the following are the bits set for an xterm. Linux text mode TTYs by
-  // default add two additional bits that only matter for serial processing
-  // (turn serial line break into an interrupt, and XON/XOFF flow control)
-
-  // Any key unblocks output, swap CR and NL on input
-  termio.c_iflag = IXANY|ICRNL|INLCR;
-  if (toys.which->flags & TOYFLAG_LOCALE) termio.c_iflag |= IUTF8;
-
-  // Output appends CR to NL, does magic undocumented postprocessing
-  termio.c_oflag = ONLCR|OPOST;
-
-  // Leave serial port speed alone
-  // termio.c_cflag = C_READ|CS8|EXTB;
-
-  // Generate signals, input entire line at once, echo output
-  // erase, line kill, escape control characters with ^
-  // erase line char at a time
-  // "extended" behavior: ctrl-V quotes next char, ctrl-R reprints unread chars,
-  // ctrl-W erases word
-  termio.c_lflag = ISIG|ICANON|ECHO|ECHOE|ECHOK|ECHOCTL|ECHOKE|IEXTEN;
-
-  if (raw) cfmakeraw(&termio);
-
-  return tcsetattr(fd, TCSANOW, &termio);
-}
-
 int yesno(char *prompt, int def)
 {
   char buf;
@@ -931,55 +865,3 @@ int xpoll(struct pollfd *fds, int nfds, int timeout)
     } else return i;
   }
 }
-
-// Scan stdin for a keypress, parsing known escape sequences
-// seq is array of char * strings, ends with NULL ptr
-// Returns: 0-255=literal, -1=EOF, -2=NONE, 256-...=index into seq
-// scratch space is necessary because last char of !seq could start new seq
-// Zero out first byte of scratch before first call to scan_key
-// block=0 allows fetching multiple characters before updating display
-int scan_key(char *scratch, char **seqs, int block)
-{
-  struct pollfd pfd;
-  int maybe, i, j;
-  char *test;
-
-  for (;;) {
-    pfd.fd = 0;
-    pfd.events = POLLIN;
-    pfd.revents = 0;
-
-    // check sequences
-    maybe = 0;
-    if (*scratch) {
-      for (i = maybe = 0; (test = seqs[i]); i++) {
-        for (j = 0; j<*scratch; j++) if (scratch[j+1] != test[j]) break;
-        if (j == *scratch) {
-          maybe = 1;
-          if (!test[j]) {
-            // We recognized current sequence: consume and return
-            *scratch = 0;
-            return 256+i;
-          }
-        }
-      }
-      // If current data can't be a known sequence, return next raw char
-      if (!maybe) break;
-    }
-
-    // Need more data to decide
-
-    // 30 miliseconds is about the gap between characters at 300 baud 
-    if (maybe || !block) if (!xpoll(&pfd, 1, 30*maybe)) break;
-
-    if (1 != read(0, scratch+1+*scratch, 1)) return -1;
-    ++*scratch;
-  }
-
-  // Was not a sequence
-  if (!*scratch) return -2;
-  i = scratch[1];
-  if (--*scratch) memmove(scratch+1, scratch+2, *scratch);
-
-  return i;
-}
diff --git a/lib/lib.h b/lib/lib.h
index dc5edd3..be4051e 100644
--- a/lib/lib.h
+++ b/lib/lib.h
@@ -172,12 +172,14 @@ void delete_tempfile(int fdin, int fdout, char **tempname);
 void replace_tempfile(int fdin, int fdout, char **tempname);
 void crc_init(unsigned int *crc_table, int little_endian);
 void base64_init(char *p);
-int terminal_size(unsigned *x, unsigned *y);
-int set_terminal(int fd, int raw, struct termios *old);
 int yesno(char *prompt, int def);
 int human_readable(char *buf, unsigned long long num);
 int qstrcmp(const void *a, const void *b);
 int xpoll(struct pollfd *fds, int nfds, int timeout);
+
+// interestingtimes.c
+int terminal_size(unsigned *xx, unsigned *yy);
+int set_terminal(int fd, int raw, struct termios *old);
 int scan_key(char *scratch, char **seqs, int block);
 
 // net.c
diff --git a/lib/portability.h b/lib/portability.h
index 7bab646..aa1ee48 100644
--- a/lib/portability.h
+++ b/lib/portability.h
@@ -245,7 +245,7 @@ pid_t xfork(void);
 #endif
 
 //#define strncpy(...) @@strncpyisbadmmkay@@
-//#define strncat(...) @@strcatisbadmmkay@@
+//#define strncat(...) @@strncatisbadmmkay@@
 
 #if CFG_TOYBOX_SELINUX
 #include <selinux/selinux.h>