32 lines
1.1 KiB
C
32 lines
1.1 KiB
C
/* spl_dumptree.h 可配置的树形打印模块（只用基本 ASCII）*/
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#ifndef __SPL_DUMPTREE_H__
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#define __SPL_DUMPTREE_H__
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#include <stddef.h>
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#include <stdio.h>
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/* 可配置的缩进字符串 */
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typedef struct {
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const char *vertical; /* "| " */
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const char *branch; /* "|-" */
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const char *last_branch; /* "`-" */
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const char *space; /* " " */
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} spl_dumptree_style_t;
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/* 默认 ASCII 风格 */
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extern const spl_dumptree_style_t spl_dumptree_ascii_style;
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/* 打印一行节点标签：prefix + 分支符 + label
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* prefix 已累积的缩进骨架（不含分支符）
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* is_last 本节点是否为同级最后一个子节点
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* fmt printf 风格 label */
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void spl_dumptree_print(const spl_dumptree_style_t *st, const char *prefix, int is_last,
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const char *fmt, ...);
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/* 生成子节点的缩进骨架：parent_prefix + (parent_is_last ? space : vertical) */
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void spl_dumptree_child_prefix(const spl_dumptree_style_t *st, const char *prefix, int is_last,
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char *out, size_t cap);
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#endif /* __SPL_DUMPTREE_H__ */
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