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feat(text-area): new languages #4160

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Mar 30, 2024
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feat(text-area): new languages #4160

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e25ccfb
fix(text-area): updated existing languages
juftin Feb 14, 2024
c9fac89
feat(text-area): new languages
juftin Feb 14, 2024
c8d6436
fix(text-area): tree-sitter-languages pin
juftin Feb 14, 2024
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36 changes: 33 additions & 3 deletions src/textual/document/_languages.py
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Original file line number Diff line number Diff line change
@@ -1,13 +1,43 @@
BUILTIN_LANGUAGES = sorted(
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@juftin juftin Feb 14, 2024 •
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I've found the TheRenegadeCoder/sample-programs repo useful for checking how these languages render.

App for Testing 

"""
TextArea Example
"""

import os
import pathlib
from traceback import format_exc
from typing import Any, ClassVar

import click

from textual import on
from textual.app import ComposeResult, App
from textual.binding import BindingType, Binding
from textual.containers import Horizontal
from textual.widgets import TextArea, DirectoryTree, Header, Footer

KNOWN_EXTENSIONS = {
    "bash": [".sh", ".bash"],
    "c": [".c"],
    "c_sharp": [".cs"],
    "cpp": [".cpp", ".hpp", ".h"],
    "css": [".css"],
    "dockerfile": ["Dockerfile"],
    "dot": [".dot"],
    "elisp": [".el"],
    "elixir": [".ex", ".exs"],
    "elm": [".elm"],
    "embedded_template": [".et"],
    "erlang": [".erl", ".hrl"],
    "fortran": [".f", ".f90", ".f95", ".f03", ".f08", ".f18", ".for", ".f77"],
    "go": [".go"],
    "gomod": ["go.mod", "go.sum"],
    "hack": [".hh"],
    "haskell": [".hs"],
    "html": [".html", ".htm"],
    "java": [".java"],
    "javascript": [".js", ".jsx"],
    "jsdoc": [".jsdoc"],
    "json": [".json"],
    "kotlin": [".kt"],
    "make": ["Makefile", "makefile", "GNUmakefile"],
    "markdown": [".md", ".markdown", ".mdown", ".mkdn"],
    "objc": [".m", ".mm"],
    "ocaml": [".ml", ".mli"],
    "php": [".php", ".php5", ".php7"],
    "python": [".py"],
    "r": [".r"],
    "regex": [".regex"],
    "ruby": [".rb", ".erb"],
    "rust": [".rs"],
    "scala": [".scala"],
    "sql": [".sql"],
    "sqlite": [".sqlite"],
    "toml": [".toml"],
    "typescript": [".ts", ".tsx"],
    "yaml": [".yaml", ".yml"],
}

EXTENSION_TO_LANGUAGE_MAPPING = {
    extension: language
    for language, extensions in KNOWN_EXTENSIONS.items()
    for extension in extensions
}


class TextAreaApp(App):
    CSS: ClassVar[
        str
    ] = """
    DirectoryTree {
        width: auto;
    }
    """

    BINDINGS: ClassVar[list[BindingType]] = [
        Binding("q", "quit", "Quit", show=True, priority=True),
        Binding("t", "theme", "Change Theme", show=True, priority=True),
    ]

    def __init__(self, path: os.PathLike, *args: Any, **kwargs: Any) -> None:
        super().__init__(*args, **kwargs)
        self.path = pathlib.Path(path)
        self.directory_tree = DirectoryTree(path=self.path)
        self.text_area = TextArea(
            theme="monokai",
            soft_wrap=False,
            show_line_numbers=True,
        )

    def compose(self) -> ComposeResult:
        yield Header()
        yield Horizontal(self.directory_tree, self.text_area)
        yield Footer()

    @on(DirectoryTree.FileSelected)
    def handle_file_selected(self, event: DirectoryTree.FileSelected) -> None:
        self.path = pathlib.Path(event.path)
        try:
            new_text = event.path.read_text()
            extension_mapping = EXTENSION_TO_LANGUAGE_MAPPING.get(
                self.path.suffix.lower()
            )
            filename_mapping = EXTENSION_TO_LANGUAGE_MAPPING.get(self.path.name)
            language = extension_mapping or filename_mapping or "regex"
            self.text_area.text = new_text
            self.text_area.language = language
        except:  # noqa
            self.text_area.language = "regex"
            self.text_area.text = f"Error: {format_exc()}"
        finally:
            self.sub_title = f"[{self.text_area.language}] [{self.text_area.theme}]"

    def action_theme(self) -> None:
        all_themes = list(self.text_area.available_themes)
        current_index = all_themes.index(self.text_area.theme)
        next_index = (current_index + 1) % len(all_themes)
        self.text_area.theme = all_themes[next_index]
        self.sub_title = f"[{self.text_area.language}] [{self.text_area.theme}]"


@click.command()
@click.argument(
    "path", type=click.Path(exists=True, dir_okay=True, file_okay=False), default="."
)
def cli(path: os.PathLike) -> None:
    """
    TextArea CLI
    """
    app = TextAreaApp(path=path)
    app.run()


if __name__ == "__main__":
    cli()

[
"markdown",
"yaml",
"sql",
"bash",
"c",
"c_sharp",
"cpp",
"css",
"dockerfile",
"dot",
"elisp",
"elixir",
"elm",
"embedded_template",
"erlang",
"fortran",
"go",
"gomod",
"hack",
"haskell",
"html",
"java",
"javascript",
"jsdoc",
"json",
"kotlin",
"make",
"markdown",
"objc",
"ocaml",
"php",
"python",
"r",
"regex",
"ruby",
"rust",
"scala",
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"sql",
"sqlite",
"toml",
"typescript",
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@juftin juftin Feb 14, 2024 •
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Typescript has issues

NameError: Invalid node type satisfies

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Yeah I've found that this means the parser and highlights file is out of sync: the highlight query file has been updated to refer to a node type that the parser is unaware of. Usually moving to an older version of the highlights file (the version that "aligns" with the parser) fixes the problem.

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Ahh, you're right. Once I pin on tree-sitter-languages==1.10.2, which is the version I used to map to the .scm files, everything works.

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typescript highlighting is non existent though after the new version pinning
image

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@TomJGooding TomJGooding Feb 22, 2024 •
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EDIT: See #4160 (comment)

"yaml",
]
)
199 changes: 55 additions & 144 deletions src/textual/tree-sitter/highlights/bash.scm
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@@ -1,145 +1,56 @@
(simple_expansion) @none
(expansion
"${" @punctuation.special
"}" @punctuation.special) @none
[
"("
")"
"(("
"))"
"{"
"}"
"["
"]"
"[["
"]]"
] @punctuation.bracket

[
";"
";;"
(heredoc_start)
] @punctuation.delimiter

[
"$"
] @punctuation.special

[
">"
">>"
"<"
"<<"
"&"
"&&"
"|"
"||"
"="
"=~"
"=="
"!="
] @operator

[
(string)
(raw_string)
(ansi_c_string)
(heredoc_body)
] @string @spell

(variable_assignment (word) @string)

[
"if"
"then"
"else"
"elif"
"fi"
"case"
"in"
"esac"
] @conditional

[
"for"
"do"
"done"
"select"
"until"
"while"
] @repeat

[
"declare"
"export"
"local"
"readonly"
"unset"
] @keyword

"function" @keyword.function

(special_variable_name) @constant

; trap -l
((word) @constant.builtin
(#match? @constant.builtin "^SIG(HUP|INT|QUIT|ILL|TRAP|ABRT|BUS|FPE|KILL|USR[12]|SEGV|PIPE|ALRM|TERM|STKFLT|CHLD|CONT|STOP|TSTP|TT(IN|OU)|URG|XCPU|XFSZ|VTALRM|PROF|WINCH|IO|PWR|SYS|RTMIN([+]([1-9]|1[0-5]))?|RTMAX(-([1-9]|1[0-4]))?)$"))

((word) @boolean
(#any-of? @boolean "true" "false"))

(comment) @comment @spell
(test_operator) @string

(command_substitution
[ "$(" ")" ] @punctuation.bracket)

(process_substitution
[ "<(" ")" ] @punctuation.bracket)


(function_definition
name: (word) @function)

(command_name (word) @function.call)

((command_name (word) @function.builtin)
(#any-of? @function.builtin
"alias" "bg" "bind" "break" "builtin" "caller" "cd"
"command" "compgen" "complete" "compopt" "continue"
"coproc" "dirs" "disown" "echo" "enable" "eval"
"exec" "exit" "fc" "fg" "getopts" "hash" "help"
"history" "jobs" "kill" "let" "logout" "mapfile"
"popd" "printf" "pushd" "pwd" "read" "readarray"
"return" "set" "shift" "shopt" "source" "suspend"
"test" "time" "times" "trap" "type" "typeset"
"ulimit" "umask" "unalias" "wait"))

(command
argument: [
(word) @parameter
(concatenation (word) @parameter)
])

((word) @number
(#lua-match? @number "^[0-9]+$"))

(file_redirect
descriptor: (file_descriptor) @operator
destination: (word) @parameter)

(expansion
[ "${" "}" ] @punctuation.bracket)

(variable_name) @variable

((variable_name) @constant
(#lua-match? @constant "^[A-Z][A-Z_0-9]*$"))

(case_item
value: (word) @parameter)

(regex) @string.regex

((program . (comment) @preproc)
(#lua-match? @preproc "^#!/"))
(string)
(raw_string)
(heredoc_body)
(heredoc_start)
] @string

(command_name) @function

(variable_name) @property

[
"case"
"do"
"done"
"elif"
"else"
"esac"
"export"
"fi"
"for"
"function"
"if"
"in"
"select"
"then"
"unset"
"until"
"while"
] @keyword

(comment) @comment

(function_definition name: (word) @function)

(file_descriptor) @number

[
(command_substitution)
(process_substitution)
(expansion)
]@embedded

[
"$"
"&&"
">"
">>"
"<"
"|"
] @operator

(
(command (_) @constant)
(#match? @constant "^-")
)
81 changes: 81 additions & 0 deletions src/textual/tree-sitter/highlights/c.scm
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Original file line number Diff line number Diff line change
@@ -0,0 +1,81 @@
"break" @keyword
"case" @keyword
"const" @keyword
"continue" @keyword
"default" @keyword
"do" @keyword
"else" @keyword
"enum" @keyword
"extern" @keyword
"for" @keyword
"if" @keyword
"inline" @keyword
"return" @keyword
"sizeof" @keyword
"static" @keyword
"struct" @keyword
"switch" @keyword
"typedef" @keyword
"union" @keyword
"volatile" @keyword
"while" @keyword

"#define" @keyword
"#elif" @keyword
"#else" @keyword
"#endif" @keyword
"#if" @keyword
"#ifdef" @keyword
"#ifndef" @keyword
"#include" @keyword
(preproc_directive) @keyword

"--" @operator
"-" @operator
"-=" @operator
"->" @operator
"=" @operator
"!=" @operator
"*" @operator
"&" @operator
"&&" @operator
"+" @operator
"++" @operator
"+=" @operator
"<" @operator
"==" @operator
">" @operator
"||" @operator

"." @delimiter
";" @delimiter

(string_literal) @string
(system_lib_string) @string

(null) @constant
(number_literal) @number
(char_literal) @number

(call_expression
function: (identifier) @function)
(call_expression
function: (field_expression
field: (field_identifier) @function))
(function_declarator
declarator: (identifier) @function)
(preproc_function_def
name: (identifier) @function.special)

(field_identifier) @property
(statement_identifier) @label
(type_identifier) @type
(primitive_type) @type
(sized_type_specifier) @type

((identifier) @constant
(#match? @constant "^[A-Z][A-Z\\d_]*$"))

(identifier) @variable

(comment) @comment
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