diff options
| -rw-r--r-- | docs/source/apps/cct.rst | 7 | ||||
| -rw-r--r-- | src/cct.c | 24 |
2 files changed, 27 insertions, 4 deletions
diff --git a/docs/source/apps/cct.rst b/docs/source/apps/cct.rst index dc2944f2..20aec06c 100644 --- a/docs/source/apps/cct.rst +++ b/docs/source/apps/cct.rst @@ -44,6 +44,13 @@ The following control parameters can appear in any order: Specify a fixed observation height to be used for all input data. +.. option:: s <n>, --skip-lines=<n> + + .. versionadded:: 5.1.0 + + Skip the first *n* lines of input. This applies to any kind of input, wether + it comes from ``STDIN``, a file or interactive user input. + .. option:: -v, --verbose Write non-essential, but potentially useful, information to stderr. @@ -105,6 +105,7 @@ static const char usage[] = { " -z value Provide a fixed z value for all input data (e.g. -z 0)\n" " -t value Provide a fixed t value for all input data (e.g. -t 0)\n" " -I Do the inverse transformation\n" + " -s n Skip n first lines of a infile\n" " -v Verbose: Provide non-essential informational output.\n" " Repeat -v for more verbosity (e.g. -vv)\n" "--------------------------------------------------------------------------------\n" @@ -116,6 +117,7 @@ static const char usage[] = { " --time Alias for -t\n" " --verbose Alias for -v\n" " --inverse Alias for -I\n" + " --skip-lines Alias for -s\n" " --help Alias for -h\n" " --version Print version number\n" "--------------------------------------------------------------------------------\n" @@ -156,13 +158,19 @@ int main(int argc, char **argv) { OPTARGS *o; FILE *fout = stdout; char *buf; - int nfields = 4, direction = 1, verbose; + int nfields = 4, direction = 1, skip_lines = 0, verbose; double fixed_z = HUGE_VAL, fixed_time = HUGE_VAL; int columns_xyzt[] = {1, 2, 3, 4}; const char *longflags[] = {"v=verbose", "h=help", "I=inverse", "version", 0}; - const char *longkeys[] = {"o=output", "c=columns", "z=height", "t=time", 0}; - - o = opt_parse (argc, argv, "hvI", "cozt", longflags, longkeys); + const char *longkeys[] = { + "o=output", + "c=columns", + "z=height", + "t=time", + "s=skip-lines", + 0}; + + o = opt_parse (argc, argv, "hvI", "cozts", longflags, longkeys); if (0==o) return 0; @@ -202,6 +210,10 @@ int main(int argc, char **argv) { nfields--; } + if (opt_given (o, "s")) { + skip_lines = atoi (opt_arg(o, "s")); + } + if (opt_given (o, "c")) { /* cppcheck-suppress invalidscanf */ int ncols = sscanf (opt_arg (o, "c"), "%d,%d,%d,%d", columns_xyzt, columns_xyzt+1, columns_xyzt+2, columns_xyzt+3); @@ -265,6 +277,10 @@ int main(int argc, char **argv) { continue; } point = parse_input_line (buf, columns_xyzt, fixed_z, fixed_time); + if (skip_lines > 0) { + skip_lines--; + continue; + } if (HUGE_VAL==point.xyzt.x) { char *c = column (buf, 1); |