35 lines
690 B
C
35 lines
690 B
C
#include "repl.h"
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#include <stdio.h>
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void init_repl(repl_t *repl)
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{
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init_memory_pool(&repl->pool);
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}
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bool step_repl(repl_t *repl)
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{
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int len;
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for (len = 0; len < REPL_LINE_BUFFER_SIZE; ++len) {
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const int byte = repl->get_byte();
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if (EOF == byte)
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return false;
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else if ('\n' == byte)
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break;
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repl->line_buffer[len] = (char)byte;
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}
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const expression_t *e = repl->read(&repl->pool, repl->line_buffer, len);
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const int result = repl->evaluate(e);
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const int result_len = snprintf(
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repl->result_buffer, REPL_RESULT_BUFFER_SIZE, "%d\n", result);
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repl->print(repl->result_buffer, result_len);
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return true;
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}
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void run_repl(repl_t *repl)
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{
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while (step_repl(repl))
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;
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}
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