WHC
1c26cc6e30
- Drag, double-click (word) and triple-click (line) selection in the log, auto-scroll at the edges, soft-wrapped lines joined on copy. - sashidown ANSI renderer: delimiter runs with flanking rules, so intraword underscores (test_apply_patch.c) stay literal; unmatched * _ and backticks are shown as-is; * and _ do not close each other. - tests: test_textsel, test_markdown.
113 lines
3.8 KiB
C
113 lines
3.8 KiB
C
#include "cst_textsel.h"
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#define CHECK(c) \
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do { \
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if (!(c)) { \
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fprintf(stderr, "%s:%d: CHECK(%s) failed\n", __FILE__, __LINE__, #c); \
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exit(1); \
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} \
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} while (0)
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static char got[512];
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static const char *slice(const char *line, int indent, int c1, int c2,
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int trim) {
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cst_selbuf_t b = {0};
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CHECK(cst_textsel_append(&b, line, indent, c1, c2, trim) == 0);
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snprintf(got, sizeof(got), "%s", b.s ? b.s : "");
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cst_selbuf_free(&b);
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return got;
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}
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static void test_ascii(void) {
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CHECK(strcmp(slice("hello world", 0, 0, 4, 1), "hello") == 0);
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CHECK(strcmp(slice("hello world", 0, 6, -1, 1), "world") == 0);
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CHECK(strcmp(slice("hello world", 0, 3, 7, 1), "lo wo") == 0);
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/* indent: columns before the content are blank */
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CHECK(strcmp(slice("abc", 2, 0, 2, 1), "a") == 0);
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CHECK(strcmp(slice("abc", 2, 0, 1, 1), "") == 0);
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/* trailing spaces */
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CHECK(strcmp(slice("ab ", 0, 0, -1, 1), "ab") == 0);
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CHECK(strcmp(slice("ab ", 0, 0, -1, 0), "ab ") == 0);
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/* beyond the end of the content */
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CHECK(strcmp(slice("ab", 0, 5, 9, 1), "") == 0);
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}
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static void test_ansi(void) {
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const char *s = "\033[1;31mred\033[0m and \033[32mgreen\033[0m";
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CHECK(strcmp(slice(s, 0, 0, -1, 1), "red and green") == 0);
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CHECK(strcmp(slice(s, 0, 4, 6, 1), "and") == 0);
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CHECK(strcmp(slice(s, 0, 8, 12, 1), "green") == 0);
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int c1, c2;
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cst_textsel_word(s, 0, 10, &c1, &c2);
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CHECK(c1 == 8 && c2 == 12);
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}
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static void test_words(void) {
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const char *s = " open src/tui.c:42 now";
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int c1, c2;
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cst_textsel_word(s, 0, 9, &c1, &c2);
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CHECK(c1 == 7 && c2 == 18);
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CHECK(strcmp(slice(s, 0, c1, c2, 1), "src/tui.c:42") == 0);
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cst_textsel_word(s, 0, 6, &c1, &c2); /* on a space */
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CHECK(c1 == 6 && c2 == 6);
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cst_textsel_word(s, 0, 40, &c1, &c2); /* past the end */
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CHECK(c1 == 40 && c2 == 40);
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cst_textsel_word(s, 1, 3, &c1, &c2); /* indent shifts columns */
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CHECK(c1 == 3 && c2 == 6);
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}
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static void test_wide(void) {
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/* 中文 occupies columns 0-1 and 2-3 */
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const char *s = "中文 ok";
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CHECK(strcmp(slice(s, 0, 1, 1, 1), "中") == 0);
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CHECK(strcmp(slice(s, 0, 1, 2, 1), "中文") == 0);
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CHECK(strcmp(slice(s, 0, 3, 6, 1), "文 ok") == 0);
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int c1, c2;
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cst_textsel_word(s, 0, 3, &c1, &c2);
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CHECK(c1 == 0 && c2 == 3);
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cst_textsel_word("「x」", 0, 1, &c1, &c2); /* wide punctuation */
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CHECK(c1 == 0 && c2 == 1);
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/* highlight edges never split a wide character */
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c1 = 1, c2 = 2;
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cst_textsel_snap(s, 0, &c1, &c2);
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CHECK(c1 == 0 && c2 == 3);
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c1 = 2, c2 = 5;
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cst_textsel_snap(s, 0, &c1, &c2);
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CHECK(c1 == 2 && c2 == 5);
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c1 = 3, c2 = -1;
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cst_textsel_snap(s, 1, &c1, &c2); /* indent 1: 中 at 1-2, 文 at 3-4 */
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CHECK(c1 == 3 && c2 == -1);
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c1 = 4, c2 = 1;
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cst_textsel_snap(s, 1, &c1, &c2);
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CHECK(c1 == 3 && c2 == 2);
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}
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static void test_join(void) {
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cst_selbuf_t b = {0};
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CHECK(cst_textsel_append(&b, "first line ", 0, 6, -1, 1) == 0);
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CHECK(cst_selbuf_putc(&b, '\n') == 0);
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CHECK(cst_textsel_append(&b, "second", 2, 0, 4, 1) == 0);
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CHECK(strcmp(b.s, "line\nsec") == 0);
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cst_selbuf_free(&b);
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CHECK(b.s == NULL && b.n == 0);
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}
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int main(void) {
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test_ascii();
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test_ansi();
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test_words();
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if (setlocale(LC_CTYPE, "C.UTF-8") || setlocale(LC_CTYPE, "en_US.UTF-8"))
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test_wide();
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else
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printf("test_textsel: no UTF-8 locale, wide-character checks skipped\n");
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test_join();
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printf("test_textsel: ok\n");
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return 0;
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}
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