diff options
author | Pedro Souza <pedro@masba.net> | 2024-04-03 06:34:52 -0300 |
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committer | Pedro Souza <pedro@masba.net> | 2024-04-03 06:34:52 -0300 |
commit | 131dfc5e9f810b1c1e1fb1d75e781842ec601a65 (patch) | |
tree | 492de7cb339e79815c0f555b599f23e00398fd3d /main.c | |
parent | 4adade92f2b4f59ff09bbbd056f6ea2e366730ed (diff) |
test exe
Diffstat (limited to 'main.c')
-rw-r--r-- | main.c | 46 |
1 files changed, 45 insertions, 1 deletions
@@ -1,11 +1,55 @@ #include <stdio.h> #include "tree.h" +#include "bu-parser.h" + +struct lex_str_data { + const char *str; + size_t slen; + size_t needle; +}; + +struct chartoken lex_str(void *v) { + struct lex_str_data *d = v; + if (d->needle >= d->slen) { + return (struct chartoken){.id = TOKEN_EOS, .c = '\0' }; + } + struct chartoken token; + do { + token.c = d->str[d->needle++]; + enum token_id id = TOKEN_INVALID; + if (token.c >= 'a' && token.c <= 'z') { token.id = TOKEN_VARIABLE; } + else { + switch (token.c) { + case '!': token.id = TOKEN_UNARY_OPERATOR; break; + case '*': + case '+': token.id = TOKEN_BINARY_OPERATOR; break; + default: break; + } + } + } while (token.c == ' '); + return token; +} int main(){ char str[100]; printf("type in your tree(no spaces please): "); scanf("%[^\n]", str); - printTree(parse(str),0); + char str2[100]; + strncpy(str2, str, 100); + printTree(parse(str2),0); + + struct lex_str_data lxd; + lxd.str = str; + lxd.slen = strlen(str); + lxd.needle = 0; + struct expr_parser ep = expr_parser_init(lex_str, &lxd); + enum parser_state s = expr_parser_run(&ep); + if (s == PARSER_ACCEPT) { + printTree(ep.stack[0].expr, 0); + } else { + expr_parser_debug_print(stderr, &ep); + } + expr_parser_finish(&ep); return 0; } |