diff options
Diffstat (limited to 'any_json.h')
| -rw-r--r-- | any_json.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/any_json.h b/any_json.h new file mode 100644 index 0000000..021a997 --- /dev/null +++ b/any_json.h @@ -0,0 +1,158 @@ +#ifndef ANY_JSON_INCLUDE +#define ANY_JSON_INCLUDE + +#include <stdbool.h> + +typedef int (*any_json_write_fputs_t)(const char *string, void *stream); + +typedef struct { + void *stream; + any_json_write_fputs_t fputs; + int indent; + bool first; + bool pretty; +} any_json_write_t; + +void any_json_write_init(any_json_write_t *json, void *stream, + any_json_write_fputs_t fputs, bool pretty); + +bool any_json_write_open_object(any_json_write_t *json); + +bool any_json_write_close_object(any_json_write_t *json); + +bool any_json_write_open_array(any_json_write_t *json); + +bool any_json_write_close_array(any_json_write_t *json); + +bool any_json_write_member(any_json_write_t *json, const char *key); + +bool any_json_write_string(any_json_write_t *json, const char *string); + +bool any_json_write_number(any_json_write_t *json, double value); + +bool any_json_write_bool(any_json_write_t *json, bool value); + +bool any_json_write_null(any_json_write_t *json); + +#endif + +#ifdef ANY_JSON_IMPLEMENT + +#include <string.h> + +#ifndef ANY_JSON_INDENT +#define ANY_JSON_INDENT 4 +#endif + +static void any_json_write_indent(any_json_write_t *json, bool newline) +{ + if (json->pretty) { + if (newline) + json->fputs("\n", json->stream); + + for (int i = 0; i < json->indent; i++) + json->fputs(" ", json->stream); + } +} + +void any_json_write_init(any_json_write_t *json, void *stream, + any_json_write_fputs_t fputs, bool pretty) +{ + memset(json, 0, sizeof(any_json_write_t)); + json->stream = stream; + json->fputs = fputs; + json->pretty = pretty; +} + +bool any_json_write_open_object(any_json_write_t *json) +{ + json->indent += ANY_JSON_INDENT; + json->first = true; + json->fputs("{", json->stream); +} + +bool any_json_write_close_object(any_json_write_t *json) +{ + json->indent -= ANY_JSON_INDENT; + json->first = false; + any_json_write_indent(json, true); + json->fputs("}", json->stream); +} + +bool any_json_write_open_array(any_json_write_t *json) +{ + json->indent += ANY_JSON_INDENT; + json->first = true; + json->fputs("[", json->stream); +} + +bool any_json_write_close_array(any_json_write_t *json) +{ + json->indent -= ANY_JSON_INDENT; + json->first = false; + any_json_write_indent(json, true); + json->fputs("]", json->stream); +} + +bool any_json_write_member(any_json_write_t *json, const char *key) +{ + if (!json->first) + json->fputs(",", json->stream); + + any_json_write_indent(json, true); + json->first = false; + + if (key != NULL) { + any_json_write_string(json, key); + json->fputs(json->pretty ? ": " : ":", json->stream); + } +} + +bool any_json_write_string(any_json_write_t *json, const char *string) +{ + json->fputs("\"", json->stream); + json->fputs(string, json->stream); + json->fputs("\"", json->stream); +} + +bool any_json_write_number(any_json_write_t *json, double value) +{ + char buffer[1080] = { 0 }; + snprintf(buffer, sizeof(buffer), "%lf", value); + json->fputs(buffer, json->stream); +} + +bool any_json_write_bool(any_json_write_t *json, bool value) +{ + json->fputs(value ? "true" : "false", json->stream); +} + +bool any_json_write_null(any_json_write_t *json) +{ + json->fputs("null", json->stream); +} + +#endif + +// MIT License +// +// Copyright (c) 2025 Federico Angelilli +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in all +// copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +// SOFTWARE. +// |