Update typst syntax (#389)

* Update language_typst.lua

* Update manifest.json

* Commited suggestion

Co-authored-by: Guldoman <giulio.lettieri@gmail.com>

* Update language_typst.lua

* Update language_typst.lua

* Update language_typst.lua

- added suggestions concerning strings
- added extra highlight for direct variable use (`Hello #name!`)

---------

Co-authored-by: Guldoman <giulio.lettieri@gmail.com>

1 files changed, 211 insertions, 136 deletions

diff --git a/plugins/language_typst.lua b/plugins/language_typst.lua
index c5bd943..77b9701 100644
--- a/plugins/language_typst.lua
+++ b/plugins/language_typst.lua
@@ -4,153 +4,228 @@ local syntax = require "core.syntax"
 
 local typst_math = {
 
-    patterns = {
-
-        { pattern = { "/%*", "%*/" },              type = "comment" },
-        { pattern = "//.*",                        type = "comment" },
-
-        { pattern = { '"', '"', '\\' },            type = "string"  },
-
-        { pattern = "[%a_][%w_%-]*%f[(]",          type = "function" },
-        { pattern = "%a%a+",                       type = "function"},
-
-
-        { pattern = "0x[%dabcdef]+",               type = "number" },
-        { pattern = "0b[01]+",                     type = "number" },
-        { pattern = "0o[01234567]+",               type = "number" },
-        { pattern = "%d+[.e]%d+",                  type = "number" },
-        { pattern = "%d",                          type = "number" },
-
-        {pattern = "&",                            type = "literal"},
-        { pattern = "[%+%-=/%*%^%%<>~|#_^\\]",     type = "operator" },
-
-    },
-
-    symbols = {
-        ["alpha"]    = "keyword2",
-        ["beta"]     = "keyword2",
-        ["gamma"]    = "keyword2",
-        ["delta"]    = "keyword2",
-        ["epsilon"]  = "keyword2",
-        ["zeta"]     = "keyword2",
-        ["eta"]      = "keyword2",
-        ["theta"]    = "keyword2",
-        ["iota"]     = "keyword2",
-        ["kappa"]    = "keyword2",
-        ["lambda"]   = "keyword2",
-        ["mu"]       = "keyword2",
-        ["nu"]       = "keyword2",
-        ["xi"]       = "keyword2",
-        ["omicron"]  = "keyword2",
-        ["pi"]       = "keyword2",
-        ["rho"]      = "keyword2",
-        ["sigma"]    = "keyword2",
-        ["tau"]      = "keyword2",
-        ["upsilon"]  = "keyword2",
-        ["phi"]      = "keyword2",
-        ["chi"]      = "keyword2",
-        ["psi"]      = "keyword2",
-        ["omega"]    = "keyword2",
-
-        ["Alpha"]    = "keyword2",
-        ["Beta"]     = "keyword2",
-        ["Gamma"]    = "keyword2",
-        ["Delta"]    = "keyword2",
-        ["Epsilon"]  = "keyword2",
-        ["Zeta"]     = "keyword2",
-        ["Eta"]      = "keyword2",
-        ["Theta"]    = "keyword2",
-        ["Iota"]     = "keyword2",
-        ["Kappa"]    = "keyword2",
-        ["Lambda"]   = "keyword2",
-        ["Mu"]       = "keyword2",
-        ["Nu"]       = "keyword2",
-        ["Xi"]       = "keyword2",
-        ["Omicron"]  = "keyword2",
-        ["Pi"]       = "keyword2",
-        ["Rho"]      = "keyword2",
-        ["Sigma"]    = "keyword2",
-        ["Tau"]      = "keyword2",
-        ["Upsilon"]  = "keyword2",
-        ["Phi"]      = "keyword2",
-        ["Chi"]      = "keyword2",
-        ["Psi"]      = "keyword2",
-        ["Omega"]    = "keyword2",
-    }
+	patterns = {
+
+		{ pattern = { "/%*", "%*/" },              type = "comment"  },
+		{ pattern = "//.*",                        type = "comment"  },
+
+		{ pattern = { '"', '"', '\\' },            type = "string"   },
+		{ pattern = "#%a+",                        type = "literal"  },
+		{ pattern = "%a+%f[(]",                    type = "function" },
+		{ pattern = "%a%a+",                       type = "function" },
+
+
+		{ pattern = "0x[%dabcdef]+",               type = "number"   },
+		{ pattern = "0b[01]+",                     type = "number"   },
+		{ pattern = "0o[01234567]+",               type = "number"   },
+		{ pattern = "%d+[.e]%d+",                  type = "number"   },
+		{ pattern = "%d",                          type = "number"   },
+
+		{ pattern = "&",                           type = "literal"  },
+		{ pattern = "!=",                          type = "operator" },
+		{ pattern = "[%+%-=/%*%^%%<>~|_^\\]",      type = "operator" },
+		{ pattern = "%a%a+",                       type = "symbol"   },
+
+	},
+
+	symbols = {
+		["alpha"]    = "keyword2",
+		["beta"]     = "keyword2",
+		["gamma"]    = "keyword2",
+		["delta"]    = "keyword2",
+		["epsilon"]  = "keyword2",
+		["zeta"]     = "keyword2",
+		["eta"]      = "keyword2",
+		["theta"]    = "keyword2",
+		["iota"]     = "keyword2",
+		["kappa"]    = "keyword2",
+		["lambda"]   = "keyword2",
+		["mu"]       = "keyword2",
+		["nu"]       = "keyword2",
+		["xi"]       = "keyword2",
+		["omicron"]  = "keyword2",
+		["pi"]       = "keyword2",
+		["rho"]      = "keyword2",
+		["sigma"]    = "keyword2",
+		["tau"]      = "keyword2",
+		["upsilon"]  = "keyword2",
+		["phi"]      = "keyword2",
+		["chi"]      = "keyword2",
+		["psi"]      = "keyword2",
+		["omega"]    = "keyword2",
+
+		["Alpha"]    = "keyword2",
+		["Beta"]     = "keyword2",
+		["Gamma"]    = "keyword2",
+		["Delta"]    = "keyword2",
+		["Epsilon"]  = "keyword2",
+		["Zeta"]     = "keyword2",
+		["Eta"]      = "keyword2",
+		["Theta"]    = "keyword2",
+		["Iota"]     = "keyword2",
+		["Kappa"]    = "keyword2",
+		["Lambda"]   = "keyword2",
+		["Mu"]       = "keyword2",
+		["Nu"]       = "keyword2",
+		["Xi"]       = "keyword2",
+		["Omicron"]  = "keyword2",
+		["Pi"]       = "keyword2",
+		["Rho"]      = "keyword2",
+		["Sigma"]    = "keyword2",
+		["Tau"]      = "keyword2",
+		["Upsilon"]  = "keyword2",
+		["Phi"]      = "keyword2",
+		["Chi"]      = "keyword2",
+		["Psi"]      = "keyword2",
+		["Omega"]    = "keyword2",
+	}
 }
 
+-- there was a bug where the string highlighting did not work properly
+-- (probably becuase the tokenizer prioritizes subsyntaxes over clasic start-end patterns)
+-- so in order to fix this issue, I had to create this extra sub-syntax.
+local typst_string = {
 
-local typst_script = {
-
-    patterns = {
-
-        { pattern = { "/%*", "%*/" },              type = "comment" },
-        { pattern = "//.*",                        type = "comment" },
-
-        { pattern = { '"', '"', '\\' },            type = "string"  },
-        { pattern = {"%[", "%]"},                  type = "normal", syntax = ".typ" },
-
-        { pattern = "[%a_][%w_%-]*%f[(]",          type = "function" },
-
-        { pattern = "0x[%dabcdef]+",               type = "number" },
-        { pattern = "0b[01]+",                     type = "number" },
-        { pattern = "0o[01234567]+",               type = "number" },
-        { pattern = "%d+[.e]%d+()[%a%%]+",         type = {"number", "keyword2"}},
-        { pattern = "%d+[.e]%d+",                  type = "number" },
-        { pattern = "%d+()[%a%%]+",                type = {"number", "keyword2"}},
-        { pattern = "%d",                          type = "number" },
+	patterns = {
+		{ pattern = "\\.",     type = "string" },
+		{ pattern = '[^"\\]+', type = "string" }
+	},
 
-
-        { pattern = "[%+%-=/%*%^%%<>~|&#_^\\]",    type = "operator" },
-
-    },
-
-
-    symbols = {
-        ["set"] = "keyword",
-        ["let"] = "keyword",
-        ["include"] = "keyword",
-    }
+	symbols = {}
 }
 
 
-syntax.add {
-    name = "Typst",
-    files = { "%.typ$" },
-    comment = "//",
-    block_comment = { "/*", "*/" },
-
-    patterns = {
-
-
-        { pattern = {"%$", "%$", "\\"},            type = "literal", syntax = typst_math },
-        { pattern = {"```js", "```", "\\"},        type = "literal", syntax = ".js" },
-        { pattern = {"#", "[^,%(%[{]\n"},          type = "literal", syntax = typst_script },
-        { pattern = {"`", "`", "\\"},              type = "normal"},
-
-        { pattern = { '"', '"', '\\' },            type = "string"  },
-
-
-        { pattern = "//.*",                        type = "comment" },
-        { pattern = { "/%*", "%*/" },              type = "comment" },
-
-   --     { pattern = {"link"},                    type = "typst_underline"}, -- add underline text later
-
-        { pattern = "^%s*=+ ().+%f[\n]",             type ={"operator", "literal"}}, -- Supposed to be bold
+local typst_script = {
 
-    -- Finish later
-        { pattern = {"%*_", "_%*[%s,%.]"},         type = "keyword2"}, -- Bold Italic
-        { pattern = {"_%*", "%*_[%s,%.]"},         type = "keyword2"}, -- Bold Italic
-        { pattern = {"_", "_[%s,%.]"},             type = "keyword"}, -- Italic
-        { pattern = {"%*[^%/]", "%*[%s,%.]"},      type = "literal"}, -- Bold
+	patterns = {
+
+		{ pattern = { "/%*", "%*/" },              type = "comment"                       },
+		{ pattern = "//.*",                        type = "comment"                       },
+
+		{ pattern = { '"', '"', '\\' },            type = "string", syntax = typst_string },
+		{ pattern = {"%[", "%]"},                  type = "normal", syntax = ".typ"       },
+		{ pattern = "[%a_][%w_%-]*%f[(]",          type = "function"                      },
+		{ pattern = "[%+%-=/%*%^%%<>~|&_^\\]",     type = "operator"                      },
+		{ pattern = "%f[^#][%a_]+",                type = "literal"                       },
+		{ pattern = "#",                           type = "literal"                       },
+
+		{ pattern = "0x[%dabcdef]+()%a*",          type = {"number", "keyword2"}          },
+		{ pattern = "0b[01]+()%a*",                type = {"number", "keyword2"}          },
+		{ pattern = "0o[01234567]+()%a*",          type = {"number", "keyword2"}          },
+		{ pattern = "%d+[.e]%d+()%a*",             type = {"number", "keyword2"}          },
+		{ pattern = "%d+()%a*",                    type = {"number", "keyword2"}          },
+
+		{ pattern = "%a%a+",                       type = "symbol"                        },
+
+	},
+
+
+	symbols = {
+		["set"]      = "keyword",
+		["let"]      = "keyword",
+		["show"]     = "keyword",
+		["include"]  = "keyword",
+		["import"]   = "keyword",
+		["context"]  = "keyword",
+		["if"]       = "keyword",
+		["else"]     = "keyword",
+		["for"]      = "keyword",
+		["in"]       = "keyword",
+		["while"]    = "keyword",
+		["break"]    = "keyword",
+		["continue"] = "keyword",
+		["return"]   = "keyword",
+		["as"]       = "keyword",
+		["or"]       = "keyword",
+		["and"]      = "keyword",
+		["not"]      = "keyword",
+
+		["true"]     = "literal",
+		["false"]    = "literal",
+	}
+}
 
-        { pattern = "[%+%-\\]",    type = "operator" },
+table.insert(typst_script.patterns, 1, { pattern = { "%(", "%)" }, syntax = typst_script })
+table.insert(typst_script.patterns, 1, { pattern = { "{",  "}"  }, syntax = typst_script })
+
+
+
+local typst_syntax = {
+	name = "Typst",
+	files = { "%.typ$" },
+	comment = "//",
+	block_comment = { "/*", "*/" },
+
+	patterns = {
+		{ pattern = { "%[", "%]" }, syntax = ".typ" },
+		{
+			pattern = { "#()import", "\n"    },
+			type    = { "literal", "keyword" },
+			syntax  = typst_script
+		},
+		{
+			pattern = { "#()include", "\n"   },
+			type    = { "literal", "keyword" },
+			syntax  = typst_script
+		},
+		{
+			pattern = { "#()set", "\n"       },
+			type    = { "literal", "keyword" },
+			syntax  = typst_script
+		},
+		{
+			pattern = { "#()let", "\n"       },
+			type    = { "literal", "keyword" },
+			syntax  = typst_script
+		},
+		{
+			pattern = { "#()show", "\n"      },
+			type    = { "literal", "keyword" },
+			syntax  = typst_script
+		},
+		{
+			pattern = { "#()context", "\n"      },
+			type    = { "literal", "keyword" },
+			syntax  = typst_script
+		},
+
+		{ pattern = { "%f[#]", "%f[%s']"},      type = "literal", syntax = typst_script },
+		{ pattern = { "%$", "%$", "\\" },       type = "literal", syntax = typst_math   },
+
+		{ pattern = { "```js"  , "```", "\\" }, type = "string", syntax = ".js"         },
+		{ pattern = { "```py",   "```", "\\" }, type = "string", syntax = ".py"         },
+		{ pattern = { "```rust", "```", "\\" }, type = "string", syntax = ".rs"         },
+		{ pattern = { "```c",    "```", "\\" }, type = "string", syntax = ".c"          },
+		-- Possibility to add more syntax later
+		{ pattern = { "`", "`", "\\" },         type = "string"                         },
+
+		{ pattern = { "<", ">" },               type = "string"                         },
+		{ pattern = { "@", "%s" },              type = "string"                         },
+
+		{ pattern = "//.*",                     type = "comment"                        },
+		{ pattern = { "/%*", "%*/" },           type = "comment"                        },
+
+		--{ pattern = {"link"},                      type = "typst_underline"                }, -- add underline text later
+
+		-- Finish later
+		{ pattern = "^%s*=+%s.+%f[\n]",         type = "keyword"                        }, -- Bold
+		{ pattern = {"%*_", "_%*"},             type = "keyword"                        }, -- Bold Italic
+		{ pattern = {"_%*", "%*_"},             type = "keyword"                        }, -- Bold Italic
+		{ pattern = {"_", "_"},                 type = "keyword"                        }, -- Italic
+		{ pattern = {"%*", "%*"},               type = "keyword2"                       }, -- Bold
+
+		{ pattern = "[%+%-\\/]",                type = "operator"                       },
+		{ pattern = "\\[nrt]",                  type = "string"                         },
+		{ pattern = "\\u%b{}",                  type = "string"                         },
+		{ pattern = "\\.",                      type = "normal"                         },
+
+	},
+
+	symbols = {}
+}
 
-    },
 
 
 
-    symbols = {
 
-    }
-}
+syntax.add(typst_syntax)