Function resolve_python_relative

src/pipeline/fqn.c:246–270

Python relative import: ".foo", "..bar.baz" → resolve against source dir. */

/* Python relative import: ".foo", "..bar.baz" → resolve against source dir. */
static char *resolve_python_relative(char *buf, size_t buf_size, const char *module_path) {
    const char *p = module_path;
    int dot_count = 0;
    while (*p == '.') {
        dot_count++;
        p++;
    }
    for (int i = FQN_MIN_PY_DOTS; i < dot_count; i++) {
        path_pop_segment(buf);
    }
    while (*p) {
        const char *seg_start = p;
        while (*p && *p != '.') {
            p++;
        }
        size_t seg_len = (size_t)(p - seg_start);
        if (seg_len > 0 && !path_append_segment(buf, buf_size, seg_start, seg_len)) {
            return NULL;
        }
        if (*p == '.') {
            p++;
        }
    }
    return strdup(buf);
}

/* Strip a trailing file extension from a segment (e.g. "helpers.ts" → "helpers").
 * Returns the new segment length. */