zzy
871d031ceb
新增词法解析器库 `smcc_lex_parser`，包含基础的词法规则解析功能： - 支持字符、字符串、数字、标识符的解析 - 支持跳过注释、空白符、行尾等辅助函数 - 提供对应的单元测试用例，覆盖各类合法与非法输入情况 该模块依赖 `libcore`，并被 `smcc_lex` 模块引用以支持更上层的词法分析逻辑。
60 lines
2.1 KiB
C
60 lines
2.1 KiB
C
// test_char.c
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#include <lex_parser.h>
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#include <utest/acutest.h>
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cbool check_char(const char *str, int expect, int *output) {
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log_set_level(&__default_logger_root, 0);
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core_pos_t pos = core_pos_init();
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core_mem_stream_t mem_stream;
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core_stream_t *stream =
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core_mem_stream_init(&mem_stream, str, smcc_strlen(str), false);
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*output = lex_parse_char(stream, &pos);
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return *output == expect;
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}
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#define CHECK_CHAR_VALID(str, expect) \
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do { \
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int _output; \
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cbool ret = check_char(str, expect, &_output); \
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TEST_CHECK(ret == true); \
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} while (0)
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#define CHECK_CHAR_INVALID(str) \
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do { \
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int _output; \
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check_char(str, core_stream_eof, &_output); \
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TEST_CHECK(_output == core_stream_eof); \
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} while (0)
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void test_simple_char(void) {
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TEST_CASE("simple chars");
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CHECK_CHAR_VALID("'a'", 'a');
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CHECK_CHAR_VALID("'Z'", 'Z');
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CHECK_CHAR_VALID("'0'", '0');
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CHECK_CHAR_VALID("' '", ' ');
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}
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void test_escape_char(void) {
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TEST_CASE("escape chars");
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CHECK_CHAR_VALID("'\\n'", '\n');
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CHECK_CHAR_VALID("'\\t'", '\t');
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CHECK_CHAR_VALID("'\\r'", '\r');
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CHECK_CHAR_VALID("'\\\\'", '\\');
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CHECK_CHAR_VALID("'\\''", '\'');
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CHECK_CHAR_VALID("'\\\"'", '\"');
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}
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void test_invalid_char(void) {
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TEST_CASE("invalid chars");
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CHECK_CHAR_INVALID("'");
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CHECK_CHAR_INVALID("''");
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CHECK_CHAR_INVALID("'ab'");
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CHECK_CHAR_INVALID("'\\'");
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}
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TEST_LIST = {
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{"test_simple_char", test_simple_char},
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{"test_escape_char", test_escape_char},
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{"test_invalid_char", test_invalid_char},
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{NULL, NULL},
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}; |