Class: Rouge::Lexers::Stan

Inherits:
RegexLexer show all
Defined in:
lib/rouge/lexers/stan.rb

Constant Summary collapse

WS =

optional comment or whitespace

%r((?:\s|//.*?\n|/[*].*?[*]/)+)
ID = 
/[a-zA-Z_][a-zA-Z0-9_]*/
RT = 
/(?:(?:[a-z_]\s*(?:\[[0-9, ]\])?)\s+)*/
OP = 
Regexp.new([
  # Assigment operators
  "=",

  # Comparison operators
  "<", "<=", ">", ">=", "==", "!=",

  # Boolean operators
  "!", "&&", "\\|\\|",

  # Real-valued arithmetic operators
  "\\+", "-", "\\*", "/", "\\^",

  # Transposition operator
  "'",

  # Elementwise functions
  "\\.\\+", "\\.-", "\\.\\*", "\\./", "\\.\\^",

  # Matrix division operators
  "\\\\",

  # Compound assigment operators
  "\\+=", "-=", "\\*=", "/=", "\\.\\*=", "\\./=",

  # Sampling
  "~",

  # Conditional operator
  "\\?", ":"
].join("|"))

Constants inherited from RegexLexer

RegexLexer::MAX_NULL_SCANS

Constants included from Token::Tokens

Token::Tokens::Num, Token::Tokens::Str

Instance Attribute Summary

Attributes inherited from Rouge::Lexer

#options

Class Method Summary collapse

Methods inherited from RegexLexer

append, #delegate, #goto, #group, #groups, #in_state?, #pop!, prepend, #push, #recurse, replace_state, #reset!, #reset_stack, #stack, start, start_procs, state, #state, #state?, state_definitions, states, #step, #stream_tokens, #token

Methods inherited from Rouge::Lexer

aliases, all, #as_bool, #as_lexer, #as_list, #as_string, #as_token, #bool_option, continue_lex, #continue_lex, debug_enabled?, demo, demo_file, desc, detect?, detectable?, disable_debug!, enable_debug!, filenames, find, find_fancy, guess, guess_by_filename, guess_by_mimetype, guess_by_source, guesses, #hash_option, #initialize, lex, #lex, #lexer_option, #list_option, lookup_fancy, mimetypes, option, option_docs, #reset!, #stream_tokens, #string_option, tag, #tag, title, #token_option, #with

Methods included from Token::Tokens

token

Constructor Details

This class inherits a constructor from Rouge::Lexer

Class Method Details

.builtin_functions ⇒ Object 



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# File 'lib/rouge/lexers/stan.rb', line 90

def self.builtin_functions
  @builtin_functions ||= Set.new [
    # Integer-Valued Basic Functions

    ## Absolute functions
    "abs", "int_step",

    ## Bound functions
    "min", "max",

    ## Size functions
    "size",

    # Real-Valued Basic Functions

    ## Log probability function
    "target", "get_lp",

    ## Logical functions
    "step", "is_inf", "is_nan",

    ## Step-like functions
    "fabs", "fdim", "fmin", "fmax", "fmod", "floor", "ceil", "round",
    "trunc",

    ## Power and logarithm functions
    "sqrt", "cbrt", "square", "exp", "exp2", "log", "log2", "log10",
    "pow", "inv", "inv_sqrt", "inv_square",

    ## Trigonometric functions
    "hypot", "cos", "sin", "tan", "acos", "asin", "atan", "atan2",

    ## Hyperbolic trigonometric functions
    "cosh", "sinh", "tanh", "acosh", "asinh", "atanh",

    ## Link functions
    "logit", "inv_logit", "inv_cloglog",

    ## Probability-related functions
    "erf", "erfc", "Phi", "inv_Phi", "Phi_approx", "binary_log_loss",
    "owens_t",

    ## Combinatorial functions
    "beta", "inc_beta", "lbeta", "tgamma", "lgamma", "digamma",
    "trigamma", "lmgamma", "gamma_p", "gamma_q",
    "binomial_coefficient_log", "choose", "bessel_first_kind",
    "bessel_second_kind", "modified_bessel_first_kind",
    "log_modified_bessel_first_kind", "modified_bessel_second_kind",
    "falling_factorial", "lchoose", "log_falling_factorial",
    "rising_factorial", "log_rising_factorial",

    ## Composed functions
    "expm1", "fma", "multiply_log", "ldexp", "lmultiply", "log1p",
    "log1m", "log1p_exp", "log1m_exp", "log_diff_exp", "log_mix",
    "log_sum_exp", "log_inv_logit", "log_inv_logit_diff",
    "log1m_inv_logit",

    ## Special functions
    "lambert_w0", "lambert_wm1",

    # Complex-Valued Basic Functions

    ## Complex constructors and accessors
    "to_complex", "get_real", "get_imag",

    ## Complex special functions
    "arg", "norm", "conj", "proj", "polar",

    # Array Operations

    ## Reductions
    "sum", "prod", "log_sum_exp", "mean", "variance", "sd", "distance",
    "squared_distance", "quantile",

    ## Array size and dimension function
    "dims", "num_elements",

    ## Array broadcasting
    "rep_array",

    ## Array concatenation
    "append_array",

    ## Sorting functions
    "sort_asc", "sort_desc", "sort_indices_asc", "sort_indices_desc",
    "rank",

    ## Reversing functions
    "reverse",

    # Matrix Operations

    ## Integer-valued matrix size functions
    "num_elements", "rows", "cols",

    ## Dot products and specialized products
    "dot_product", "columns_dot_product", "rows_dot_product", "dot_self",
    "columns_dot_self", "rows_dot_self", "tcrossprod", "crossprod",
    "quad_form", "quad_form_diag", "quad_form_sym", "trace_quad_form",
    "trace_gen_quad_form", "multiply_lower_tri_self_transpose",
    "diag_pre_multiply", "diag_post_multiply",

    ## Broadcast functions
    "rep_vector", "rep_row_vector", "rep_matrix",
    "symmetrize_from_lower_tri",

    ## Diagonal matrix functions
    "add_diag", "diagonal", "diag_matrix", "identity_matrix",

    ## Container construction functions
    "linspaced_array", "linspaced_int_array", "linspaced_vector",
    "linspaced_row_vector", "one_hot_int_array", "one_hot_array",
    "one_hot_vector", "one_hot_row_vector", "ones_int_array",
    "ones_array", "ones_vector", "ones_row_vector", "zeros_int_array",
    "zeros_array", "zeros_vector", "zeros_row_vector", "uniform_simplex",

    ## Slicing and blocking functions
    "col", "row", "block", "sub_col", "sub_row", "head", "tail",
    "segment",

    ## Matrix concatenation
    "append_col", "append_row",

    ## Special matrix functions
    "softmax", "log_softmax", "cumulative_sum",

    ## Covariance functions
    "cov_exp_quad",

    ## Linear algebra functions and solvers
    "mdivide_left_tri_low", "mdivide_right_tri_low", "mdivide_left_spd",
    "mdivide_right_spd", "matrix_exp", "matrix_exp_multiply",
    "scale_matrix_exp_multiply", "matrix_power", "trace", "determinant",
    "log_determinant", "inverse", "inverse_spd", "chol2inv",
    "generalized_inverse", "eigenvalues_sym", "eigenvectors_sym",
    "qr_thin_Q", "qr_thin_R", "qr_Q", "qr_R", "cholseky_decompose",
    "singular_values", "svd_U", "svd_V",

    # Sparse Matrix Operations

    ## Conversion functions
    "csr_extract_w", "csr_extract_v", "csr_extract_u",
    "csr_to_dense_matrix",

    ## Sparse matrix arithmetic
    "csr_matrix_times_vector",

    # Mixed Operations
    "to_matrix", "to_vector", "to_row_vector", "to_array_2d",
    "to_array_1d",

    # Higher-Order Functions

    ## Algebraic equation solver
    "algebra_solver", "algebra_solver_newton",

    ## Ordinary differential equation
    "ode_rk45", "ode_rk45_tol", "ode_ckrk", "ode_ckrk_tol", "ode_adams",
    "ode_adams_tol", "ode_bdf", "ode_bdf_tol", "ode_adjoint_tol_ctl",

    ## 1D integrator
    "integrate_1d",

    ## Reduce-sum function
    "reduce_sum", "reduce_sum_static",

    ## Map-rect function
    "map_rect",

    # Deprecated Functions
    "integrate_ode_rk45", "integrate_ode", "integrate_ode_adams",
    "integrate_ode_bdf",

    # Hidden Markov Models
    "hmm_marginal", "hmm_latent_rng", "hmm_hidden_state_prob"
  ]
end

.constants ⇒ Object 



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# File 'lib/rouge/lexers/stan.rb', line 333

def self.constants
  @constants ||= Set.new [
    # Mathematical constants
    "pi", "e", "sqrt2", "log2", "log10",

    # Special values
    "not_a_number", "positive_infinity", "negative_infinity",
    "machine_precision"
  ]
end

.distributions ⇒ Object 



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# File 'lib/rouge/lexers/stan.rb', line 268

def self.distributions
  @distributions ||= Set.new(
    [
      # Discrete Distributions

      ## Binary Distributions
      "bernoulli", "bernoulli_logit", "bernoulli_logit_glm",

      ## Bounded Discrete Distributions
      "binomial", "binomial_logit", "beta_binomial", "hypergeometric",
      "categorical", "categorical_logit_glm", "discrete_range",
      "ordered_logistic", "ordered_logistic_glm", "ordered_probit",

      ## Unbounded Discrete Distributions
      "neg_binomial", "neg_binomial_2", "neg_binomial_2_log",
      "neg_binomial_2_log_glm", "poisson", "poisson_log",
      "poisson_log_glm",

      ## Multivariate Discrete Distributions
      "multinomial", "multinomial_logit",

      # Continuous Distributions

      ## Unbounded Continuous Distributions
      "normal", "std_normal", "normal_id_glm", "exp_mod_normal",
      "skew_normal", "student_t", "cauchy", "double_exponential",
      "logistic", "gumbel", "skew_double_exponential",

      ## Positive Continuous Distributions
      "lognormal", "chi_square", "inv_chi_square",
      "scaled_inv_chi_square", "exponential", "gamma", "inv_gamma",
      "weibull", "frechet", "rayleigh",

      ## Positive Lower-Bounded Distributions
      "pareto", "pareto_type_2", "wiener",

      ## Continuous Distributions on [0, 1]
      "beta", "beta_proportion",

      ## Circular Distributions
      "von_mises",

      ## Bounded Continuous Distributions
      "uniform",

      ## Distributions over Unbounded Vectors
      "multi_normal", "multi_normal_prec", "multi_normal_cholesky",
      "multi_gp", "multi_gp_cholesky", "multi_student_t",
      "gaussian_dlm_obs",

      ## Simplex Distributions
      "dirichlet",

      ## Correlation Matrix Distributions
      "lkj_corr", "lkj_corr_cholesky",

      ## Covariance Matrix Distributions
      "wishart", "inv_wishart"
    ].product([
      "", "_lpmf", "_lupmf", "_lpdf", "_lcdf", "_lccdf", "_rng", "_log",
      "_cdf_log", "_ccdf_log"
    ]).map {|s| "#{s[0]}#{s[1]}"}
  )
end

.keywords ⇒ Object 



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# File 'lib/rouge/lexers/stan.rb', line 48

def self.keywords
  @keywords ||= Set.new %w(
    if else while for break continue print reject return
  )
end

.reserved ⇒ Object 



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# File 'lib/rouge/lexers/stan.rb', line 62

def self.reserved
  @reserved ||= Set.new [
    # Reserved words from Stan language
    "for", "in", "while", "repeat", "until", "if", "then", "else", "true",
    "false", "target", "functions", "model", "data", "parameters",
    "quantities", "transformed", "generated",

    # Reserved names from Stan implementation
    "var", "fvar", "STAN_MAJOR", "STAN_MINOR", "STAN_PATCH",
    "STAN_MATH_MAJOR", "STAN_MATH_MINOR", "STAN_MATH_PATCH",

    # Reserved names from C++
    "alignas", "alignof", "and", "and_eq", "asm", "auto", "bitand",
    "bitor", "bool", "break", "case", "catch", "char", "char16_t",
    "char32_t", "class", "compl", "const", "constexpr", "const_cast",
    "continue", "decltype", "default", "delete", "do", "double",
    "dynamic_cast", "else", "enum", "explicit", "export", "extern",
    "false", "float", "for", "friend", "goto", "if", "inline", "int",
    "long", "mutable", "namespace", "new", "noexcept", "not", "not_eq",
    "nullptr", "operator", "or", "or_eq", "private", "protected",
    "public", "register", "reinterpret_cast", "return", "short", "signed",
    "sizeof", "static", "static_assert", "static_cast", "struct",
    "switch", "template", "this", "thread_local", "throw", "true", "try",
    "typedef", "typeid", "typename", "union", "unsigned", "using",
    "virtual", "void", "volatile", "wchar_t", "while", "xor", "xor_eq"
  ]
end

.types ⇒ Object 



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# File 'lib/rouge/lexers/stan.rb', line 54

def self.types
  @types ||= Set.new %w(
    int real vector ordered positive_ordered simplex unit_vector
    row_vector matrix cholesky_factor_corr cholesky_factor_cov corr_matrix
    cov_matrix data void complex array
  )
end