vimscript/vimextras.c

   1 #include <stdlib.h>
   2 #include <string.h>
   3 #include <stdio.h>
   4 #include <readline/readline.h>
   5 #include <sys/time.h>
   6
   7 /*
   8  * Vim interface for the readline(3) function.
   9  *
  10  * Prints 'prompt' and reads a line from the input. If EOF is encountered,
  11  * returns the string "E"; otherwise, returns the string "S<line>" where <line>
  12  * is the line read from input.
  13  *
  14  * This function is not thread-safe.
  15  */
  16 char* vimreadline(char* prompt) {
  17     static char buf[1024];
  18     char* res = readline(prompt);
  19     if (res) {
  20         buf[0] = 'S';
  21         strncpy(buf + 1, res, sizeof(buf) - 1);
  22         free(res);
  23     } else {
  24         buf[0] = 'E';
  25         buf[1] = '\0';
  26     }
  27     return buf;
  28 }
  29
  30 #define UNIXTIME_BASE 1451606400 /* = Unix time of 2016-01-01 */
  31
  32 /*
  33  * Returns the number of milliseconds since 2016-01-01 00:00:00 UTC.
  34  *
  35  * This date is chosen (instead of the standard 1970 epoch) so the number of
  36  * milliseconds will not exceed a 32-bit integer, which is the limit for Vim
  37  * number variables.
  38  */
  39 int vimtimems(int dummy) {
  40     struct timeval tv;
  41     (void) dummy; /* unused */
  42     gettimeofday(&tv, NULL);
  43     return (tv.tv_sec - UNIXTIME_BASE) * 1000 + (tv.tv_usec / 1000);
  44 }