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authorLukasz Kasprzak <lukasz@arcofasiagroup.com>2026-08-21 09:51:36 +0200
committerLukasz Kasprzak <lukasz@arcofasiagroup.com>2026-08-21 09:51:36 +0200
commit147932ae2da02b5eceb6be6e1d704e1199bcb72e (patch)
tree8d6d622551e012ac42598c2d9d96006417496d33 /README.md
parent7459e218fa8b5b86c059762519447cb8863d3e75 (diff)
downloadcolitur-x-147932ae2da02b5eceb6be6e1d704e1199bcb72e.tar.gz
colitur-x-147932ae2da02b5eceb6be6e1d704e1199bcb72e.zip
fix(colitur-x): detect the CSV header instead of assuming it
Skipping the first line unconditionally punished the obvious way to view one month -- colitur emit --format csv ... | grep '^2027-04' | colitur-x -- by silently eating 1 April, because grep had already removed the header the program still expected. A filter is exactly what this program should compose with. A header is the line beginning 'date,'; anything else is a day. Verified all three ways: full year with header 365 rows from 01-01, a grepped month without header 30 rows from 04-01, and the old head -1 incantation still 30 rows.
Diffstat (limited to 'README.md')
-rw-r--r--README.md8
1 files changed, 6 insertions, 2 deletions
diff --git a/README.md b/README.md
index b0872cf..9df7b8e 100644
--- a/README.md
+++ b/README.md
@@ -12,8 +12,12 @@ Keys: arrows or `hjkl` move, `n`/`p` change month, `q` quits.
It reads CSV on **stdin** and nothing else, so the shell decides what it
shows. One month:
- colitur emit --format csv --from 2027 --to 2027 \
- | { head -1; grep "^2027-04"; } | colitur-x
+ colitur emit --format csv --from 2027 --to 2027 | grep "^2027-04" | colitur-x
+
+The header line is detected rather than assumed, so filtering it away is
+fine. An earlier version skipped the first line unconditionally, which meant
+that pipeline silently dropped 1 April -- the program fought the obvious
+filter instead of composing with it.
Another language, or a local calendar: