do not always star time at 0 - ploot - simple plotting tools
 (HTM) git clone git://bitreich.org/ploot git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/ploot
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       ---
 (DIR) commit ab839e91e0a3687937992cb48558a15e1547d8ea
 (DIR) parent 5f03375e046ffabf4446085c1411841be57f8cd1
 (HTM) Author: Josuah Demangeon <mail@josuah.net>
       Date:   Wed,  2 May 2018 07:56:04 +0200
       
       do not always star time at 0
       
       Diffstat:
         M ffplot.c                            |       5 ++---
         M ploot.c                             |       8 +++++---
       
       2 files changed, 7 insertions(+), 6 deletions(-)
       ---
 (DIR) diff --git a/ffplot.c b/ffplot.c
       @@ -220,7 +220,8 @@ find_scales(Vlist *v, int n,
                };
                int i;
        
       -        *vmin = *vmax = *tmin = *tmax = 0;
       +        *vmin = *vmax = 0;
       +        *tmin = *tmax = *v->t;
        
                for (; n-- > 0; v++) {
                        for (i = 0; i < v->n; i++) {
       @@ -284,8 +285,6 @@ ffplot(Vlist *v, int n, char *name, char *units)
        
                find_scales(v, n, &vmin, &vmax, &vstep, &tmin, &tmax, &tstep);
        
       -        fprintf(stderr, "%f %f  %lld %lld\n", vmin, vmax, tmin, tmax);
       -
                can.x = 0;
                can.y = 0;
                ffdraw_fill(&can, &plot_bg);
 (DIR) diff --git a/ploot.c b/ploot.c
       @@ -73,7 +73,7 @@ eatof(char *str)
        
                for (s = str; *s != '\0'; s++)
                        if (!isdigit(*s) && *s != '-' && *s != '.')
       -                        fputs("invalid floatrformat", stderr), exit(0);
       +                        fputs("invalid float format\n", stderr), exit(0);
                return atof(str);
        }
        
       @@ -84,7 +84,7 @@ eatol(char *str)
        
                for (s = str; *s != '\0'; s++)
                        if (!isdigit(*s) && *s != '-')
       -                        fputs("invalid number format", stderr), exit(0);
       +                        fputs("invalid number format\n", stderr), exit(0);
                return atol(str);
        }
        
       @@ -111,11 +111,13 @@ add_row(Vlist *v, int *bufsiz, int ncol, int nval, char *line)
        {
                time_t epoch;
                int n;
       -        char *field;
       +        char *field, *dot;
        
                if ((field = strsep(&line, ",")) == NULL)
                        fprintf(stderr, "%d: missing epoch\n", nval), exit(0);
        
       +        if ((dot = strchr(field, '.')) != NULL)
       +                *dot = '\0';
                epoch = eatol(field);
                for (n = 0; (field = strsep(&line, ",")) != NULL; n++, v++) {
                        if (n > ncol)