tree-sitter-bash/src/grammar.json

{
  "name": "bash",
  "rules": {
    "program": {
      "type": "REPEAT",
      "content": {
        "type": "SYMBOL",
        "name": "_terminated_statement"
      }
    },
    "_terminated_statement": {
      "type": "SEQ",
      "members": [
        {
          "type": "SYMBOL",
          "name": "statement"
        },
        {
          "type": "SYMBOL",
          "name": "terminator"
        }
      ]
    },
    "statement": {
      "type": "CHOICE",
      "members": [
        {
          "type": "SYMBOL",
          "name": "environment_variable_assignment"
        },
        {
          "type": "SYMBOL",
          "name": "command"
        },
        {
          "type": "SYMBOL",
          "name": "bracket_command"
        },
        {
          "type": "SYMBOL",
          "name": "while_statement"
        },
        {
          "type": "SYMBOL",
          "name": "if_statement"
        },
        {
          "type": "SYMBOL",
          "name": "case_statement"
        },
        {
          "type": "SYMBOL",
          "name": "pipeline"
        },
        {
          "type": "SYMBOL",
          "name": "list"
        },
        {
          "type": "SYMBOL",
          "name": "subshell"
        }
      ]
    },
    "while_statement": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "while"
        },
        {
          "type": "SYMBOL",
          "name": "_terminated_statement"
        },
        {
          "type": "SYMBOL",
          "name": "do_group"
        }
      ]
    },
    "do_group": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "do"
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "_terminated_statement"
          }
        },
        {
          "type": "STRING",
          "value": "done"
        }
      ]
    },
    "if_statement": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "if"
        },
        {
          "type": "SYMBOL",
          "name": "_terminated_statement"
        },
        {
          "type": "STRING",
          "value": "then"
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "_terminated_statement"
          }
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "elif_clause"
          }
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "SYMBOL",
              "name": "else_clause"
            },
            {
              "type": "BLANK"
            }
          ]
        },
        {
          "type": "STRING",
          "value": "fi"
        }
      ]
    },
    "elif_clause": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "elif"
        },
        {
          "type": "SYMBOL",
          "name": "_terminated_statement"
        },
        {
          "type": "STRING",
          "value": "then"
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "_terminated_statement"
          }
        }
      ]
    },
    "else_clause": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "else"
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "_terminated_statement"
          }
        }
      ]
    },
    "case_statement": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "case"
        },
        {
          "type": "SYMBOL",
          "name": "value"
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "SYMBOL",
              "name": "terminator"
            },
            {
              "type": "BLANK"
            }
          ]
        },
        {
          "type": "STRING",
          "value": "in"
        },
        {
          "type": "SYMBOL",
          "name": "terminator"
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "case_item"
          }
        },
        {
          "type": "STRING",
          "value": "esac"
        }
      ]
    },
    "case_item": {
      "type": "SEQ",
      "members": [
        {
          "type": "SYMBOL",
          "name": "value"
        },
        {
          "type": "STRING",
          "value": ")"
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "_terminated_statement"
          }
        },
        {
          "type": "STRING",
          "value": ";;"
        }
      ]
    },
    "bracket_command": {
      "type": "CHOICE",
      "members": [
        {
          "type": "SEQ",
          "members": [
            {
              "type": "STRING",
              "value": "["
            },
            {
              "type": "REPEAT1",
              "content": {
                "type": "SYMBOL",
                "name": "value"
              }
            },
            {
              "type": "STRING",
              "value": "]"
            }
          ]
        },
        {
          "type": "SEQ",
          "members": [
            {
              "type": "STRING",
              "value": "[["
            },
            {
              "type": "REPEAT1",
              "content": {
                "type": "SYMBOL",
                "name": "value"
              }
            },
            {
              "type": "STRING",
              "value": "]]"
            }
          ]
        }
      ]
    },
    "command": {
      "type": "SEQ",
      "members": [
        {
          "type": "REPEAT",
          "content": {
            "type": "CHOICE",
            "members": [
              {
                "type": "SYMBOL",
                "name": "environment_variable_assignment"
              },
              {
                "type": "SYMBOL",
                "name": "file_redirect"
              }
            ]
          }
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "RENAME",
              "content": {
                "type": "CHOICE",
                "members": [
                  {
                    "type": "SYMBOL",
                    "name": "leading_word"
                  }
                ]
              },
              "value": "command_name"
            },
            {
              "type": "STRING",
              "value": ":"
            },
            {
              "type": "SYMBOL",
              "name": "quoted_argument"
            },
            {
              "type": "SYMBOL",
              "name": "single_quoted_argument"
            }
          ]
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "SEQ",
              "members": [
                {
                  "type": "PATTERN",
                  "value": "\\s+"
                },
                {
                  "type": "REPEAT",
                  "content": {
                    "type": "SYMBOL",
                    "name": "value"
                  }
                }
              ]
            },
            {
              "type": "BLANK"
            }
          ]
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "CHOICE",
            "members": [
              {
                "type": "SYMBOL",
                "name": "file_redirect"
              },
              {
                "type": "SYMBOL",
                "name": "heredoc_redirect"
              }
            ]
          }
        }
      ]
    },
    "pipeline": {
      "type": "PREC_LEFT",
      "value": 1,
      "content": {
        "type": "SEQ",
        "members": [
          {
            "type": "SYMBOL",
            "name": "statement"
          },
          {
            "type": "CHOICE",
            "members": [
              {
                "type": "STRING",
                "value": "|"
              },
              {
                "type": "STRING",
                "value": "|&"
              }
            ]
          },
          {
            "type": "SYMBOL",
            "name": "statement"
          }
        ]
      }
    },
    "list": {
      "type": "PREC_LEFT",
      "value": 0,
      "content": {
        "type": "SEQ",
        "members": [
          {
            "type": "SYMBOL",
            "name": "statement"
          },
          {
            "type": "CHOICE",
            "members": [
              {
                "type": "STRING",
                "value": "&&"
              },
              {
                "type": "STRING",
                "value": "||"
              }
            ]
          },
          {
            "type": "SYMBOL",
            "name": "statement"
          }
        ]
      }
    },
    "subshell": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "("
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "SYMBOL",
            "name": "_terminated_statement"
          }
        },
        {
          "type": "STRING",
          "value": ")"
        }
      ]
    },
    "environment_variable_assignment": {
      "type": "SEQ",
      "members": [
        {
          "type": "RENAME",
          "content": {
            "type": "SYMBOL",
            "name": "leading_word"
          },
          "value": "variable_name"
        },
        {
          "type": "STRING",
          "value": "="
        },
        {
          "type": "SYMBOL",
          "name": "value"
        }
      ]
    },
    "value": {
      "type": "CHOICE",
      "members": [
        {
          "type": "RENAME",
          "content": {
            "type": "SYMBOL",
            "name": "word"
          },
          "value": "argument"
        },
        {
          "type": "SYMBOL",
          "name": "command_substitution"
        },
        {
          "type": "SYMBOL",
          "name": "quoted_argument"
        },
        {
          "type": "SYMBOL",
          "name": "single_quoted_argument"
        },
        {
          "type": "SYMBOL",
          "name": "expansion"
        },
        {
          "type": "SYMBOL",
          "name": "operator_expansion"
        }
      ]
    },
    "quoted_argument": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "\""
        },
        {
          "type": "REPEAT",
          "content": {
            "type": "CHOICE",
            "members": [
              {
                "type": "SYMBOL",
                "name": "_quoted_chars"
              },
              {
                "type": "SYMBOL",
                "name": "expansion"
              },
              {
                "type": "SYMBOL",
                "name": "operator_expansion"
              },
              {
                "type": "SYMBOL",
                "name": "command_substitution"
              }
            ]
          }
        },
        {
          "type": "STRING",
          "value": "\""
        }
      ]
    },
    "_quoted_chars": {
      "type": "PATTERN",
      "value": "[^\"$]+"
    },
    "single_quoted_argument": {
      "type": "PATTERN",
      "value": "'[^']*'"
    },
    "expansion": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "$"
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "RENAME",
              "content": {
                "type": "SYMBOL",
                "name": "word"
              },
              "value": "variable_name"
            },
            {
              "type": "STRING",
              "value": "$"
            }
          ]
        }
      ]
    },
    "operator_expansion": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "${"
        },
        {
          "type": "RENAME",
          "content": {
            "type": "SYMBOL",
            "name": "leading_word"
          },
          "value": "variable_name"
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "SEQ",
              "members": [
                {
                  "type": "CHOICE",
                  "members": [
                    {
                      "type": "STRING",
                      "value": ":"
                    },
                    {
                      "type": "STRING",
                      "value": ":?"
                    },
                    {
                      "type": "STRING",
                      "value": "="
                    },
                    {
                      "type": "STRING",
                      "value": ":-"
                    }
                  ]
                },
                {
                  "type": "SYMBOL",
                  "name": "value"
                }
              ]
            },
            {
              "type": "BLANK"
            }
          ]
        },
        {
          "type": "STRING",
          "value": "}"
        }
      ]
    },
    "command_substitution": {
      "type": "SEQ",
      "members": [
        {
          "type": "STRING",
          "value": "$("
        },
        {
          "type": "SYMBOL",
          "name": "command"
        },
        {
          "type": "STRING",
          "value": ")"
        }
      ]
    },
    "file_redirect": {
      "type": "SEQ",
      "members": [
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "SYMBOL",
              "name": "file_descriptor"
            },
            {
              "type": "BLANK"
            }
          ]
        },
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "STRING",
              "value": "<"
            },
            {
              "type": "STRING",
              "value": ">"
            },
            {
              "type": "STRING",
              "value": ">>"
            },
            {
              "type": "STRING",
              "value": "&>"
            },
            {
              "type": "STRING",
              "value": "&>>"
            },
            {
              "type": "STRING",
              "value": "<&"
            },
            {
              "type": "STRING",
              "value": ">&"
            }
          ]
        },
        {
          "type": "SYMBOL",
          "name": "value"
        }
      ]
    },
    "heredoc_redirect": {
      "type": "SEQ",
      "members": [
        {
          "type": "CHOICE",
          "members": [
            {
              "type": "STRING",
              "value": "<<"
            },
            {
              "type": "STRING",
              "value": "<<-"
            }
          ]
        },
        {
          "type": "SYMBOL",
          "name": "heredoc"
        }
      ]
    },
    "heredoc": {
      "type": "CHOICE",
      "members": [
        {
          "type": "SYMBOL",
          "name": "_simple_heredoc"
        },
        {
          "type": "SEQ",
          "members": [
            {
              "type": "SYMBOL",
              "name": "_heredoc_beginning"
            },
            {
              "type": "REPEAT",
              "content": {
                "type": "CHOICE",
                "members": [
                  {
                    "type": "SYMBOL",
                    "name": "expansion"
                  },
                  {
                    "type": "SYMBOL",
                    "name": "operator_expansion"
                  },
                  {
                    "type": "SYMBOL",
                    "name": "_heredoc_middle"
                  }
                ]
              }
            },
            {
              "type": "SYMBOL",
              "name": "_heredoc_end"
            }
          ]
        }
      ]
    },
    "leading_word": {
      "type": "PATTERN",
      "value": "[^\"\\\\\\s#=|;:{}()]+"
    },
    "word": {
      "type": "PATTERN",
      "value": "[^\"#\\\\\\s$<>{}&;()]+"
    },
    "comment": {
      "type": "PATTERN",
      "value": "#.*"
    },
    "terminator": {
      "type": "CHOICE",
      "members": [
        {
          "type": "STRING",
          "value": ";"
        },
        {
          "type": "STRING",
          "value": ";;"
        },
        {
          "type": "STRING",
          "value": "\n"
        },
        {
          "type": "STRING",
          "value": "&"
        }
      ]
    }
  },
  "extras": [
    {
      "type": "SYMBOL",
      "name": "comment"
    },
    {
      "type": "TOKEN",
      "content": {
        "type": "CHOICE",
        "members": [
          {
            "type": "PATTERN",
            "value": "\\s"
          },
          {
            "type": "STRING",
            "value": "\\\n"
          }
        ]
      }
    }
  ],
  "conflicts": [],
  "externals": [
    {
      "type": "SYMBOL",
      "name": "_simple_heredoc"
    },
    {
      "type": "SYMBOL",
      "name": "_heredoc_beginning"
    },
    {
      "type": "SYMBOL",
      "name": "_heredoc_middle"
    },
    {
      "type": "SYMBOL",
      "name": "_heredoc_end"
    },
    {
      "type": "SYMBOL",
      "name": "file_descriptor"
    }
  ],
  "inline": [
    "statement",
    "terminator",
    "value"
  ]
}