Subsequent patch needs to use 2 char indentation for nested objects.
Hence introduce a generic helpers to allocate, deallocate, increment,
decrement and to print indent block.
Signed-off-by: Parav Pandit <parav@xxxxxxxxxx>
---
changelog:
v2->v3:
- patch split from vdpa tool patch
---
include/utils.h | 16 ++++++++++++
lib/utils.c | 66 +++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 82 insertions(+)
diff --git a/include/utils.h b/include/utils.h
index e66090ae..9b76c92a 100644
--- a/include/utils.h
+++ b/include/utils.h
@@ -349,4 +349,20 @@ int str_map_lookup_str(const struct str_num_map *map, const char *needle);
const char *str_map_lookup_u16(const struct str_num_map *map, uint16_t val);
const char *str_map_lookup_u8(const struct str_num_map *map, uint8_t val);
+unsigned int get_str_char_count(const char *str, int match);
+int str_split_by_char(char *str, char **before, char **after, int match);
+
+#define INDENT_STR_MAXLEN 32
+
+struct indent_mem {
+ int indent_level;
+ char indent_str[INDENT_STR_MAXLEN + 1];
+};
+
+struct indent_mem *alloc_indent_mem(void);
+void free_indent_mem(struct indent_mem *mem);
+void inc_indent(struct indent_mem *mem);
+void dec_indent(struct indent_mem *mem);
+void print_indent(struct indent_mem *mem);
+
#endif /* __UTILS_H__ */
diff --git a/lib/utils.c b/lib/utils.c
index af1b553c..cc6d0e34 100644
--- a/lib/utils.c
+++ b/lib/utils.c
@@ -1978,3 +1978,69 @@ const char *str_map_lookup_u8(const struct str_num_map *map, uint8_t val)
}
return NULL;
}
+
+unsigned int get_str_char_count(const char *str, int match)
+{
+ unsigned int count = 0;
+ const char *pos = str;
+
+ while ((pos = strchr(pos, match))) {
+ count++;
+ pos++;
+ }
+ return count;
+}
+
+int str_split_by_char(char *str, char **before, char **after, int match)
+{
+ char *slash;
+
+ slash = strrchr(str, match);
+ if (!slash)
+ return -EINVAL;
+ *slash = '\0';
+ *before = str;
+ *after = slash + 1;
+ return 0;
+}
+
+struct indent_mem *alloc_indent_mem(void)
+{
+ struct indent_mem *mem = malloc(sizeof(*mem));
+
+ if (!mem)
+ return NULL;
+ strcpy(mem->indent_str, "");
+ mem->indent_level = 0;
+ return mem;
+}
+
+void free_indent_mem(struct indent_mem *mem)
+{
+ free(mem);
+}
+
+#define INDENT_STR_STEP 2
+
+void inc_indent(struct indent_mem *mem)
+{
+ if (mem->indent_level + INDENT_STR_STEP > INDENT_STR_MAXLEN)
+ return;
+ mem->indent_level += INDENT_STR_STEP;
+ memset(mem->indent_str, ' ', sizeof(mem->indent_str));
+ mem->indent_str[mem->indent_level] = '\0';
+}
+
+void dec_indent(struct indent_mem *mem)
+{
+ if (mem->indent_level - INDENT_STR_STEP < 0)
+ return;
+ mem->indent_level -= INDENT_STR_STEP;
+ mem->indent_str[mem->indent_level] = '\0';
+}
+
+void print_indent(struct indent_mem *mem)
+{
+ if (mem->indent_level)
+ printf("%s", mem->indent_str);
+}
--
2.26.2
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