87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
#ifndef LIBABACUS_H
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#define LIBABACUS_H
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#include "ht.h"
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#include "lexer.h"
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#include "table.h"
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#include "parser.h"
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#include "result.h"
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#include "custom.h"
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/**
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* The main struct of libabacus,
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* which essentially holds all the informatiom
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* for the library's state and operation.
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*/
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struct libab_s {
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/**
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* The lexer used to convert a string
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* to tokens.
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*/
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libab_lexer lexer;
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/**
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* The parser used to convert
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* tokens to a tree.
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*/
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libab_parser parser;
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/**
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* The table used to store top-level
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* things like functions and operators.
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*/
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libab_table table;
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};
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typedef struct libab_s libab;
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/**
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* Initializes the libabacus struct as well
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* as all its internal structures such as the lexer.
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* @param ab the libabacus instance used to keep state.
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* @return the result of the initialization.
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*/
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libab_result libab_init(libab* ab);
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/**
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* Registers an operator with libabacus.
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* @param ab the libabacus instance to reigster the operator with.
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* @param op the operator string to register.
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* @param precedence the precedence of the operator.
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* @param func the function that describes the functionality of the operator.
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* @return the result of the initialization.
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*/
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libab_result libab_register_operator_infix(libab* ab, const char* op, int precedence, libab_function_ptr func);
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/**
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* Registers an operation with libabacus that appears
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* before its operand.
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* @param ab the libabacus instance to register the operator with.
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* @param op the operator string to register.
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* @param func the function that describes the functionality of the operator.
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* @return the result of the registration.
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*/
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libab_result libab_register_operator_prefix(libab* ab, const char* op, libab_function_ptr func);
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/**
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* Registers an operation with libabacus that appears
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* after its operand.
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* @param ab the libabacus instance to register the operator with.
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* @param op the operator string to register.
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* @param func the function that describes the functionality of the operator.
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* @return the result of the registration.
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*/
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libab_result libab_register_operator_postfix(libab* ab, const char* op, libab_function_ptr func);
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/**
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* Registers a function with libabacus.
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* @param ab the libabacus instance used to keep state.
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* @param name the name of the function.
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* @param func the function that describes the functionality of the function.
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* @return the result of the initialization.
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*/
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libab_result libab_register_function(libab* ab, const char* name, libab_function_ptr func);
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/**
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* Releases all the resources allocated by libabacus.
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* @param ab the libabacus instance to release.
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* @return the result of the initialization.
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*/
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libab_result libab_free(libab* ab);
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#endif
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