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big update to readme

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This commit is contained in:
Daniel Holden
2013-09-26 13:15:00 +01:00
parent b02c6ffdfe
commit eadb0417b9
8 changed files with 1018 additions and 296 deletions
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82
tests/grammar.c
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@@ -1,54 +1,56 @@
#include "ptest.h"
#include "../mpc.h"
bool ast_eq(void* x, void* y) {
return false;
}
void test_grammar(void) {
mpc_parser_t* Test = mpc_new();
mpc_parser_t* Expr = mpc_new("expression");
mpc_parser_t* Prod = mpc_new("product");
mpc_parser_t* Value = mpc_new("value");
mpc_parser_t* Maths = mpc_new("maths");
mpc_define(Test, mpca_grammar("'c'*"));
mpc_define(Expr, mpca_grammar(" <product> (('+' | '-') <product>)* ", Prod));
mpc_define(Prod, mpca_grammar(" <value> (('*' | '/') <value>)* ", Value));
mpc_define(Value, mpca_grammar(" /[0-9]+/ | '(' <expression> ')' ", Expr));
mpc_define(Maths, mpca_total(Expr));
mpc_print(Test);
mpc_ast_t* t0 = mpc_ast_build(1, "root", mpc_ast_new("value", "24"));
mpc_ast_t* t1 = mpc_ast_build(1, "root",
mpc_ast_build(3, "value",
mpc_ast_new("char", "("),
mpc_ast_new("value", "5"),
mpc_ast_new("char", ")")));
mpc_undefine(Test);
mpc_ast_t* t2 = mpc_ast_build(3, "root",
mpc_ast_build(3, "value",
mpc_ast_new("char", "("),
mpc_ast_build(3, "expression",
mpc_ast_build(5, "product",
mpc_ast_new("value", "4"),
mpc_ast_new("char", "*"),
mpc_ast_new("value", "2"),
mpc_ast_new("char", "*"),
mpc_ast_new("value", "11")),
mpc_ast_new("char", "+"),
mpc_ast_new("value", "2")),
mpc_ast_new("char", ")")),
mpc_ast_new("char", "+"),
mpc_ast_new("value", "5"));
mpc_delete(Test);
mpc_parser_t* Expression = mpc_new();
mpc_parser_t* Product = mpc_new();
mpc_parser_t* Value = mpc_new();
PT_ASSERT(mpc_match(Maths, " 24 ", t0, (bool(*)(void*,void*))mpc_ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_match(Maths, "(5)", t1, (bool(*)(void*,void*))mpc_ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_match(Maths, "(4 * 2 * 11 + 2) + 5", t2, (bool(*)(void*,void*))mpc_ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_unmatch(Maths, "a", t0, (bool(*)(void*,void*))mpc_ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_unmatch(Maths, "2b+4", t0, (bool(*)(void*,void*))mpc_ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
mpc_define(Expression, mpca_grammar("<0> (('+' | '-') <0>)*", Product));
mpc_define(Product, mpca_grammar("<0> (('*' | '/') <0>)*", Value));
mpc_define(Value, mpca_grammar("/[0-9]/ | '(' <0> ')'", Expression));
mpc_print(Expression);
mpc_print(Product);
mpc_print(Value);
mpc_ast_delete(t0);
mpc_ast_delete(t1);
mpc_ast_delete(t2);
mpc_ast_t* empty = mpc_ast_empty();
/*
PT_ASSERT(mpc_match(Expression, "1", empty, ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_match(Expression, "(5)", empty, ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_match(Expression, "(4*2)+5", empty, ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_match(Expression, "a", empty, ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
PT_ASSERT(mpc_match(Expression, "2b+4", empty, ast_eq, (mpc_dtor_t)mpc_ast_delete, (void(*)(void*))mpc_ast_print));
*/
mpc_ast_delete(empty);
mpc_undefine(Expression);
mpc_undefine(Product);
mpc_undefine(Value);
mpc_delete(Expression);
mpc_delete(Product);
mpc_delete(Value);
mpc_cleanup(4, Expr, Prod, Value, Maths);
}
void suite_grammar(void) {