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feat(ui): min(), max() and clamp(); insets as percentages of the containing block

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-24 21:53:44 +03:00
parent 355201f094
commit 12f4ba8431
13 changed files with 150 additions and 21 deletions
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15
packages/ludic.ui/calc.ludic
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@ -1,21 +1,20 @@
# calc.ludic - CSS's calc(): + - * / and brackets over lengths (px, em, rem, vw, vh, or a bare
# number, which is px as everywhere here), percentages and plain numbers; var() is already read by
# then. A width or height keeps its percentage apart (w_pct plus an offset) to be taken of the room
# the element is given; anywhere else a percentage in calc() has nothing to be a share of.
# calc.ludic - CSS's calc(), min(), max() and clamp(): + - * / and brackets over lengths (px, em, rem,
# vw, vh, a bare number is px), percentages and plain numbers. A width, height or inset keeps its
# percentage apart, to be taken of the room it is given; elsewhere a percentage has nothing to share.
var ca_s: string = ""
var ca_i: int = 0
var ca_bad: string = ""
var ca_px: float = 0.0 # the result: its lengths, its percentage, and whether it had units
var ca_pct: float = 0.0
function ca_is(s: string) -> bool { return len(s) > 5 and s[0..5] == "calc(" }
function ca_is(s: string) -> bool { return ca_fn_at(s, 0) != "" }
# calc(...) worked out into ca_px and ca_pct; false (with the reason said) when it cannot be
function ca_eval(s: string) -> bool {
ca_s = s[5..len(s)]
ca_s = s
ca_i = 0
ca_bad = ""
let v = ca_sum()
let v = ca_factor()
ca_ws()
if ca_bad == "" and (ca_i >= len(ca_s) or ca_s[ca_i] != 41) { ca_bad = "a closing )" }
if ca_bad == "" and ca_i < len(ca_s) { ca_bad = "nothing after its closing )" }
if ca_bad != "" {
ui_err(`{s}: calc() expected {ca_bad}`)
return false