mirror of
https://github.com/belluzj/fantasque-sans.git
synced 2024-12-22 07:21:31 +01:00
Merge pull request #134 from claymager/fira-logic
Port Fira Code's ligature logic
This commit is contained in:
Jany Belluz
GitHub
commit
514454e9e7
|
|
@ -3,6 +3,7 @@
|
|||
# Adapted from https://github.com/tonsky/FiraCode/blob/master/gen_calt.clj
|
||||
|
||||
from textwrap import dedent
|
||||
from collections import defaultdict
|
||||
import tempfile
|
||||
|
||||
|
||||
|
|
@ -44,36 +45,192 @@ def rule(liga):
|
|||
[LIG f i] LIG
|
||||
[ f f i] LIG }
|
||||
"""
|
||||
if len(liga) == 2:
|
||||
return dedent('''\
|
||||
lookup {0}_{1} {{
|
||||
ignore sub {0} {0}' {1};
|
||||
ignore sub {0}' {1} {1};
|
||||
sub {0}' {1} by LIG;
|
||||
sub LIG {1}' by {0}_{1}.liga;
|
||||
}} {0}_{1};
|
||||
''').format(*liga)
|
||||
elif len(liga) == 3:
|
||||
return dedent('''\
|
||||
lookup {0}_{1}_{2} {{
|
||||
ignore sub {0} {0}' {1} {2};
|
||||
ignore sub {0}' {1} {2} {2};
|
||||
sub {0}' {1} {2} by LIG;
|
||||
sub LIG {1}' {2} by LIG;
|
||||
sub LIG LIG {2}' by {0}_{1}_{2}.liga;
|
||||
}} {0}_{1}_{2};
|
||||
''').format(*liga)
|
||||
elif len(liga) == 4:
|
||||
return dedent('''\
|
||||
lookup {0}_{1}_{2}_{3} {{
|
||||
ignore sub {0} {0}' {1} {2} {3};
|
||||
ignore sub {0}' {1} {2} {3} {3};
|
||||
sub {0}' {1} {2} {3} by LIG;
|
||||
sub LIG {1}' {2} {3} by LIG;
|
||||
sub LIG LIG {2}' {3} by LIG;
|
||||
sub LIG LIG LIG {3}' by {0}_{1}_{2}_{3}.liga;
|
||||
}} {0}_{1}_{2}_{3};
|
||||
''').format(*liga)
|
||||
rules = []
|
||||
# standard ignores:
|
||||
# ignore sub {0} {0}' {1};
|
||||
# ignore sub {0}' {1} {1};
|
||||
if tuple(liga) not in skip_ignores:
|
||||
rules.extend(
|
||||
[
|
||||
ignore(prefix=liga[:1], head=liga[0], suffix=liga[1:]),
|
||||
ignore(head=liga[0], suffix=(liga[1:] + [liga[-1]])),
|
||||
]
|
||||
)
|
||||
|
||||
# careful with repeats:
|
||||
# #133 ->->->->, /**/**/**/, etc.
|
||||
if len(liga) > 2 and liga[0] == liga[-1]:
|
||||
rules.append(ignore([liga[-2]], liga[0], liga[1:]))
|
||||
rules.append(ignore(head=liga[0], suffix=(liga[1:] + [liga[1]])))
|
||||
|
||||
# Don't cut into `prefix` to complete a ligature.
|
||||
# i.e. regex `(?=`> is not `(?`=>.
|
||||
rules.extend(
|
||||
[
|
||||
ignore(prefix[:-n], liga[0], liga[1:])
|
||||
for prefix in ignore_prefixes
|
||||
for n in range(1, len(liga))
|
||||
if prefix[-n:] == liga[:n]
|
||||
]
|
||||
)
|
||||
# hardcoded ignores, i.e. `<||>`
|
||||
rules.extend(ignores[tuple(liga)])
|
||||
|
||||
name = "_".join(liga)
|
||||
# substitution logic
|
||||
# sub {0}' {1} by LIG;
|
||||
# sub LIG {1}' by {0}_{1}.liga;
|
||||
for i in range(len(liga)):
|
||||
init = _join(["LIG" for lig in liga[:i]])
|
||||
tail = _join(liga[i + 1 :])
|
||||
replace = "LIG" if (i + 1 < len(liga)) else (name + ".liga")
|
||||
rules.append("sub{0} {1}'{2} by {3};".format(init, liga[i], tail, replace))
|
||||
|
||||
# put it all together
|
||||
lines = (
|
||||
["lookup " + name + " {"] + [" " + r for r in rules] + ["}} {0};".format(name)]
|
||||
)
|
||||
return "\n".join(lines)
|
||||
|
||||
|
||||
def _join(items):
|
||||
return (" " + " ".join(items)) if items else ""
|
||||
|
||||
|
||||
def ignore(prefix=None, head=None, suffix=None):
|
||||
""" don't substitute `head` if it's surrounded by `prefix` and `suffix` """
|
||||
assert head
|
||||
pref = _join(prefix)
|
||||
rest = _join(suffix)
|
||||
return "ignore sub{0} {1}'{2};".format(pref, head, rest)
|
||||
|
||||
|
||||
ignores = defaultdict(
|
||||
list,
|
||||
{
|
||||
("slash", "asterisk"): [
|
||||
"ignore sub slash' asterisk slash;",
|
||||
"ignore sub asterisk slash' asterisk;",
|
||||
],
|
||||
("asterisk", "slash"): [
|
||||
"ignore sub slash asterisk' slash;",
|
||||
"ignore sub asterisk' slash asterisk;",
|
||||
],
|
||||
# ("asterisk", "asterisk"): [
|
||||
# "ignore sub slash asterisk' asterisk;",
|
||||
# "ignore sub asterisk' asterisk slash;",
|
||||
# ],
|
||||
# ("asterisk", "asterisk", "asterisk"): [
|
||||
# "ignore sub slash asterisk' asterisk asterisk;",
|
||||
# "ignore sub asterisk' asterisk asterisk slash;",
|
||||
# ],
|
||||
# <||>
|
||||
("less", "bar", "bar"): ["ignore sub less' bar bar greater;"],
|
||||
("bar", "bar", "greater"): ["ignore sub less bar' bar greater;"],
|
||||
# # :>=
|
||||
# ("colon", "greater"): ["ignore sub colon' greater equal;"],
|
||||
# # {|}
|
||||
# ("braceleft", "bar"): ["ignore sub braceleft' bar braceright;"],
|
||||
# ("bar", "braceright"): ["ignore sub braceleft bar' braceright;"],
|
||||
# # [|]
|
||||
# ("bracketleft", "bar"): ["ignore sub bracketleft' bar bracketright;"],
|
||||
# ("bar", "bracketright"): ["ignore sub bracketleft bar' bracketright;"],
|
||||
# # <*>>> <+>>> <$>>>
|
||||
# ("greater", "greater", "greater"): [
|
||||
# "ignore sub [asterisk plus dollar] greater' greater greater;"
|
||||
# ],
|
||||
# # <<<*> <<<+> <<<$>
|
||||
# ("less", "less", "less"): ["ignore sub less' less less [asterisk plus dollar];"],
|
||||
# # =:=
|
||||
# ("colon", "equal"): ["ignore sub equal colon' equal;"],
|
||||
# =!=
|
||||
("exclam", "equal"): ["ignore sub equal exclam' equal;"],
|
||||
# =!==
|
||||
("exclam", "equal", "equal"): ["ignore sub equal exclam' equal equal;"],
|
||||
# =<= <=< <=> <=| <=: <=! <=/
|
||||
("less", "equal"): [
|
||||
"ignore sub equal less' equal;",
|
||||
"ignore sub less' equal [less greater bar colon exclam slash];",
|
||||
],
|
||||
# >=<
|
||||
# =>= >=> >=< >=| >=: >=! >=/
|
||||
("greater", "equal"): [
|
||||
"ignore sub equal greater' equal;",
|
||||
"ignore sub greater' equal [less greater bar colon exclam slash];",
|
||||
],
|
||||
# <*>> <+>> <$>>
|
||||
# >>->> >>=>>
|
||||
("greater", "greater"): [
|
||||
# "ignore sub [asterisk plus dollar] greater' greater;",
|
||||
# "ignore sub [hyphen equal] greater' greater;",
|
||||
# "ignore sub greater' greater [hyphen equal];",
|
||||
],
|
||||
# <<*> <<+> <<$>
|
||||
# <<-<< <<=<<
|
||||
("less", "less"): [
|
||||
# "ignore sub less' less [asterisk plus dollar];",
|
||||
# "ignore sub [hyphen equal] less' less;",
|
||||
# "ignore sub less' less [hyphen equal];",
|
||||
],
|
||||
# ||-|| ||=||
|
||||
("bar", "bar"): [
|
||||
"ignore sub [hyphen equal] bar' bar;",
|
||||
"ignore sub bar' bar [hyphen equal];",
|
||||
],
|
||||
# # <--> >--< |--|
|
||||
# ("hyphen", "hyphen"): [
|
||||
# "ignore sub [less greater bar] hyphen' hyphen;",
|
||||
# "ignore sub hyphen' hyphen [less greater bar];",
|
||||
# ],
|
||||
# # <---> >---< |---|
|
||||
# ("hyphen", "hyphen", "hyphen"):
|
||||
# "ignore sub [less greater bar] hyphen' hyphen hyphen;",
|
||||
# "ignore sub hyphen' hyphen hyphen [less greater bar];",
|
||||
# ],
|
||||
("equal", "equal"): [ # ==
|
||||
# "ignore sub bracketleft equal' equal;", # [==
|
||||
# "ignore sub equal' equal bracketright;",# ==]
|
||||
"ignore sub equal [colon exclam] equal' equal;", # =:== =!==
|
||||
# "ignore sub [less greater bar slash] equal' equal;", # <== >== |== /==
|
||||
# "ignore sub equal' equal [less greater bar slash];", # ==< ==> ==| ==/
|
||||
"ignore sub equal' equal [colon exclam] equal;", # ==:= ==!=
|
||||
],
|
||||
# [===[ ]===]
|
||||
# [=== ===]
|
||||
# <===> >===< |===| /===/ =:=== =!=== ===:= ===!=
|
||||
("equal", "equal", "equal"): [
|
||||
# "ignore sub bracketleft equal' equal equal;",
|
||||
# "ignore sub equal' equal equal bracketright;",
|
||||
"ignore sub equal [colon exclam] equal' equal equal;",
|
||||
"ignore sub [less greater bar slash] equal' equal equal;",
|
||||
# "ignore sub equal' equal equal [less greater bar slash];",
|
||||
"ignore sub equal' equal equal [colon exclam] equal;",
|
||||
],
|
||||
# #118 https://
|
||||
("slash", "slash"): ["ignore sub colon slash' slash;"],
|
||||
},
|
||||
)
|
||||
|
||||
|
||||
ignore_prefixes = [
|
||||
["parenleft", "question", "colon"],
|
||||
# Regexp lookahead/lookbehind
|
||||
["parenleft", "question", "equal"],
|
||||
["parenleft", "question", "less", "equal"],
|
||||
["parenleft", "question", "exclam"],
|
||||
["parenleft", "question", "less", "exclam"],
|
||||
# PHP <?=
|
||||
["less", "question", "equal"],
|
||||
]
|
||||
|
||||
|
||||
# DO NOT generate ignores at all
|
||||
skip_ignores = {
|
||||
# # <<*>> <<+>> <<$>>
|
||||
# ("less", "asterisk", "greater"),
|
||||
# ("less", "plus", "greater"),
|
||||
# ("less", "dollar", "greater"),
|
||||
}
|
||||
|
||||
|
||||
def indent(text, prefix):
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user