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-- mod-version:3 --lite-xl 2.1
local syntax = require "core.syntax"
local yaml_bracket_list = {
patterns = {
-- comments
{ pattern = { "#", "\n"}, type = "comment" },
-- strings
{ pattern = { '"', '"', '\\' }, type = "string" },
{ pattern = { "'", "'", '\\' }, type = "string" },
-- keys
{
pattern = "[%w%d]+%g+()%s*():()%s",
type = { "keyword2", "normal", "operator", "normal" }
},
-- variables
{ pattern = "%$%a%w+", type = "keyword" },
{ pattern = "%$%{%{.-%}%}", type = "keyword" },
-- numeric place holders
{ pattern = "%-?%.inf", type = "number" },
{ pattern = "%.NaN", type = "number" },
-- numbers
{ pattern = "[%+%-]?0%d+", type = "number" },
{ pattern = "[%+%-]?0x%x+", type = "number" },
{ pattern = "[%+%-]?%d+[,%.eE:%+%d]*%d+", type = "number" },
{ pattern = "[%+%-]?%d+", type = "number" },
-- others
{ pattern = ",", type = "operator" },
{ pattern = "%w+", type = "string" },
{
pattern = "[_%(%)%*@~`!%%%^&=%+%-\\;%.><%?/%s]+",
type = "string"
}
},
symbols = {}
}
syntax.add {
name = "YAML",
files = { "%.yml$", "%.yaml$" },
comment = "#",
space_handling = false,
patterns = {
--- rules that start with spaces first and those taking precedence
-- parent and child keys
{
pattern = "^[%w%d]+%g+%s*%f[:]",
type = "literal"
},
{
pattern = "^%s+[%w%d]+%g+%s*%f[:]",
type = "keyword2"
},
-- bracket lists after key declaration
{
pattern = { ":%s+%[", "%]" },
syntax = yaml_bracket_list, type = "operator"
},
{
pattern = { ":%s+{", "}" },
syntax = yaml_bracket_list, type = "operator"
},
-- child key
{
pattern = "^%s+()[%w%d]+%g+()%s*():()%s",
type = { "normal", "keyword2", "normal", "operator", "normal" }
},
-- child list element
{
pattern = "^%s+()%-()%s+()[%w%d]+%g+()%s*():()%s",
type = { "normal", "operator", "normal", "keyword2", "normal", "operator", "normal" }
},
-- unkeyed bracket lists
{
pattern = { "^%s*%[", "%]" },
syntax = yaml_bracket_list, type = "operator"
},
{
pattern = { "^%s*{", "}" },
syntax = yaml_bracket_list, type = "operator"
},
-- rule to optimize space handling
{ pattern = "%s+", type = "normal" },
--- all the other rules
-- comments
{ pattern = { "#", "\n"}, type = "comment" },
-- strings
{ pattern = { '"', '"', '\\' }, type = "string" },
{ pattern = { "'", "'", '\\' }, type = "string" },
-- extra bracket lists rules on explicit type
{
pattern = { "!!%w+%s+%[", "%]"},
syntax = yaml_bracket_list, type = "operator"
},
{
pattern = { "!!%w+%s+{", "}"},
syntax = yaml_bracket_list, type = "operator"
},
-- numeric place holders
{ pattern = "%-?%.inf", type = "number" },
{ pattern = "%.NaN", type = "number" },
-- parent list element
{
pattern = "^%-()%s+()[%w%d]+%g+()%s*():()%s",
type = { "operator", "normal", "keyword2", "normal", "operator", "normal" }
},
-- key label
{
pattern = "%&()%g+",
type = { "keyword", "literal" }
},
-- key elements expansion
{ pattern = "<<", type = "literal" },
{
pattern = "%*()[%w%d_]+",
type = { "keyword", "literal" }
},
-- explicit data types
{ pattern = "!!%g+", type = "keyword" },
-- parent key
{
pattern = "^[%w%d]+%g+()%s*():()%s",
type = { "literal", "normal", "operator", "normal" }
},
-- variables
{ pattern = "%$%a%w+", type = "keyword" },
{ pattern = "%$%{%{.-%}%}", type = "keyword" },
-- numbers
{ pattern = "[%+%-]?0%d+", type = "number" },
{ pattern = "[%+%-]?0x%x+", type = "number" },
{ pattern = "[%+%-]?%d+[,%.eE:%+%d]*%d+", type = "number" },
{ pattern = "[%+%-]?%d+", type = "number" },
-- special operators
{ pattern = "[%*%|%!>%%]", type = "keyword" },
{ pattern = "[%-%$:%?]+", type = "operator" },
-- Everything else as a string
{ pattern = "[%d%a_][%g_]*", type = "string" },
{ pattern = "%p+", type = "string" }
},
symbols = {
["true"] = "number",
["false"] = "number",
["y"] = "number",
["n"] = "number"
}
}
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