Function agent_tool_viz_param_begin

ds4_agent.c:2941–2987

    return c == '\0' || isspace(uc) || strchr(",.()+-/*=~%[]{}<>:;!&|^?", c) != NULL;
}

static const char *agent_syntax_line_comment(const agent_syntax *syn,
                                             const char *p) {
    if (!syn) return NULL;
    for (int i = 0; i < 3 && syn->singleline_comments[i]; i++) {
        const char *m = syn->singleline_comments[i];
        size_t mlen = strlen(m);
        if (mlen && !strncmp(p, m, mlen)) return m;
    }
    return NULL;
}

static int agent_syntax_color(int hl) {
    switch (hl) {
    case AGENT_HL_COMMENT: return 244;
    case AGENT_HL_KEYWORD1: return 214;
    case AGENT_HL_KEYWORD2: return 81;
    case AGENT_HL_STRING: return 150;
    case AGENT_HL_NUMBER: return 203;
    default: return 252;
    }
}

static void renderer_syntax_write(agent_token_renderer *r, int hl,
                                  const char *s, size_t n) {
    if (!n) return;
    if (hl != AGENT_HL_NORMAL) r->md_syntax_has_highlight = true;
    if (r->md_syntax_silent) return;
    if (r->use_color && hl != AGENT_HL_NORMAL) {
        char seq[32];
        snprintf(seq, sizeof(seq), "\x1b[38;5;%dm", agent_syntax_color(hl));
        renderer_write(r, seq, strlen(seq));
    }
    renderer_write(r, s, n);
    if (r->use_color && hl != AGENT_HL_NORMAL) renderer_write(r, "\x1b[0m", 4);
    r->wrote_visible_output = true;
    r->last_output_newline = false;
}

static void renderer_syntax_write_upto_marker(agent_token_renderer *r) {
    static const char marker[] = "[upto]";
    r->md_syntax_has_highlight = true;
    if (r->md_syntax_silent) return;
    if (r->use_color) {
        renderer_write(r, "\x1b[38;5;244m[", strlen("\x1b[38;5;244m["));
        renderer_write(r, "\x1b[1;38;5;177mupto",
                       strlen("\x1b[1;38;5;177mupto"));
        renderer_write(r, "\x1b[38;5;244m]\x1b[0m",
                       strlen("\x1b[38;5;244m]\x1b[0m"));
    } else {