LemonJS/README.md at 1091e507b64bdc59a645d4c334b827f1120817be

chichenkov/LemonJS

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Aleksey Chichenkov 1091e507b6 readme

2019-01-31 11:55:21 +03:00

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Requires

node
npm
gcc

Install

# bash
git clone -- http://git.macaw.me:3000/chichenkov/LemonJS
cd LemonJS

gcc -o ./lemon-src/lemon-js -O2 ./lemon-src/lemon-js.c
#or
./build.sh

Start

node main.js --c=<your_config>.js --t=<web|node>

Example (One minute start)

Also you can build example config

./build-example.sh

node main.js
#or test if want check work
node test.js

Configurate

You need create your config.js from config.template or config.example

var config = {
    lemon_bin: "./lemon-src/lemon-js", // папка с исходниками лемона
    input_path: "parser_template/", // папка с шаблоном парсера
    output_path: "out/", // папка куда будет выгружен файл
    file_name: "parser", // имя файла шаблона
    flags: "-l", // флаги для ./lemon-js
    require_template: "require_js/" // Папка для шаблона require_js/
};

cat config.template > config.js
# or
cat config.example > config.js

Test

Also you can test your parser

node test.js --c=<your_config>.js

Also

You can use this syntax for include your *.y file.

<&&REPLACER{<file_path>}&&>

Special Directives

See lemon.html for additional documentation.

%name - Set parser class name (default is "Parse")
%include - Include code in the beginning of file (usefull for imports)
%code - Include code in the end of file (usefull for exports or main code)
%token_destructor - Define code which will be executed on token destruction.
%default_destructor
%token_prefix - Define token name prefix.
%syntax_error - Define custom error handler for syntax erorrs.
%parse_accept - Define handler for all accepted tokens.
%parse_failure - Define handler for parse errors.
%stack_overflow - Define handler for stack overflow.
%extra_argument - NOT SUPPORTED
%token_type - NOT SUPPORTED
%default_type - NOT SUPPORTED
%stack_size - Set default stack size.
%start_symbol
%left - Set left associative tokens.
%right - Set right associative tokens.
%nonassoc - Set non associative tokens.
%destructor - Define custom parser destructor.
%type - NOT SUPPORTED
%fallback - Define fallback logic for tokens.
%wildcard - Define WILDCARD token.
%token_class - NOT SUPPORTED

Lexer

Used re2js lexer from: http://git.macaw.me:3000/chichenkov/re2-js-generator

Original project

See https://github.com/sormy/lemon-js

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