add arrow symbols to fonts

accessible by putting ^1 to ^8 (think "arrow number 1", etc) in your text
for narrow-width arrows (good for "wide font" highway signs), or ^a to ^h
for double-width arrows (good for all of the normal narrow-font signs).

in order, arrows 1 and "a" point up, 2/b points up-and-right, 3/c points
right, and so on, turning clockwise

Any other ^x pair just renders directly (no escape char, sorry)
This commit is contained in:
Vanessa Dannenberg 2018-10-09 07:49:41 -04:00
parent fac33e369f
commit 0f78ef70de
17 changed files with 18 additions and 0 deletions

View File

@ -387,6 +387,24 @@ local function make_line_texture(line, lineno, pos)
for word_i, word in ipairs(line) do
local chars = { }
local ch_offs = 0
word = string.gsub(word, "%^[12345678abcdefgh]", {
["^1"] = string.char(0x81),
["^2"] = string.char(0x82),
["^3"] = string.char(0x83),
["^4"] = string.char(0x84),
["^5"] = string.char(0x85),
["^6"] = string.char(0x86),
["^7"] = string.char(0x87),
["^8"] = string.char(0x88),
["^a"] = string.char(0x8a),
["^b"] = string.char(0x8b),
["^c"] = string.char(0x8c),
["^d"] = string.char(0x8d),
["^e"] = string.char(0x8e),
["^f"] = string.char(0x8f),
["^g"] = string.char(0x90),
["^h"] = string.char(0x91)
})
local word_l = #word
local i = 1
while i <= word_l do

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