diff options
Diffstat (limited to 'src/main.c')
| -rw-r--r-- | src/main.c | 11 |
1 files changed, 9 insertions, 2 deletions
@@ -40,10 +40,10 @@ typedef enum { } bool_style_t; static int rv; -static bool interactive; static bool_style_t bflag = BS_BINARY; static tbl_style_t tflag = TS_UNSET; +bool interactive; const char *current_file; static void astprocess_cli(asts_t); @@ -70,7 +70,6 @@ main(int argc, char **argv) { argv[0] = basename(argv[0]); setlocale(LC_ALL, ""); - interactive = isatty(STDIN_FILENO); int opt; const char *sflag = NULL; @@ -131,6 +130,14 @@ usage: if (sflag != NULL && argc != 0) goto usage; + /* We’re considered to be interactive if stdin is a TTY (meaning it’s + not a pipe or something) and no files have been specified on the + command-line. We should also take care to check for -s, because + that implies non-interactive usage. We intentionally consider + ‘interactive’ usage with the command-line argument ‘-’ to not be + interactive. */ + interactive = sflag == NULL && argc == 0 && isatty(STDIN_FILENO); + if (argc == 0) { if (sflag != NULL && (yyin = fmemopen((char *)sflag, strlen(sflag), "r")) == NULL) |