c-toml is a TOML parsing library written in C with performance, ease of use and customizability in mind.
First clone the repository
git clone https://github.com/fabriciopashaj/c-tomland then #include it into your project like this
// ...
#include <c-toml/lib.h>
// ...Make sure to have built the static library when you build your project.
The library has some minor requirements, utilities for it to function. They are
To have them installed you only need to run setup.sh and you don't need to worry about building them, since they are header-only libraries.
Here are some examples on how to use the library. c-toml provides you with functions to parse from whole TOMl files to individual key-value pairs and values.
Integers:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("123456754");
TOML_init(&ctx, toml);
TOMLValue value;
/////////////////////////////////////////////////////
assert(TOML_parse_number(&ctx, &value) == TOML_S_OK);
/////////////////////////////////////////////////////
assert(value->kind == TOML_INTEGER);
assert(value->integer == 123456754);Floats:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("745.236");
TOML_init(&ctx, toml);
/////////////////////////////////////////////////////
assert(TOML_parse_number(&ctx, &value) == TOML_S_OK);
/////////////////////////////////////////////////////
assert(value->kind == TOML_FLOAT);
assert(value->float_ == 745.236);Strings:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("\"a string\"");
String str;
TOML_init(&ctx, toml);
//////////////////////////////////////////////////////
assert(TOML_parse_sl_string(&ctx, &str) == TOML_S_OK);
//////////////////////////////////////////////////////
assert(String_equal(String_from_strlit("a string"), str));
// TOMLValue_destroy(&value); // don't forget this when you are doneBooleans:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("true");
TOML_init(&ctx, toml);
////////////////////////////////////////////////////
assert(TOML_parse_value(&ctx, &value) == TOML_S_OK);
////////////////////////////////////////////////////
assert(value->kind == TOML_BOOLEAN);
assert(value->boolean);Arrays:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("[1, 2, 3]");
TOML_init(&ctx, toml);
TOMLArray arr;
//////////////////////////////////////////////////
assert(TOML_parse_array(&ctx, &arr) == TOML_S_OK);
//////////////////////////////////////////////////
assert(arr != NULL);
assert(TOMLArray_len(arr) == 3);
for (int i = 0; i < 3; ++i)
{
assert(arr[i].kind == TOML_INTEGER);
assert(arr[i].integer == i + 1);
}
// TOMLArray_destroy(arr); // don't forget this when you are doneInline tables:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("{a = 1, b = 2, cd = 3}");
TOML_init(&ctx, toml);
TOMLTable table = TOMLTable_new();
///////////////////////////////////////////////////////////
assert(TOML_parse_inline_table(&ctx, &value) == TOML_S_OK);
///////////////////////////////////////////////////////////
assert(table != NULL);
assert(TOMLTable_count(table) == 3);
String keys[] = {
String_from_strlit("a"),
String_from_strlit("b"),
String_from_strlit("cd")
};
for (int i = 0; i < 3; ++i)
{
assert(TOMLTable_get(table, keys[i]).kind == TOML_INTEGER);
assert(TOMLTable_get(table, keys[i]).integer == i + 1);
}
// TOMLTable_destroy(table); // don't forget this when you are doneTables
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("\
[foo] \
bar = 1 \
baz = 4.5 \
");
TOML_init(&ctx, toml);
TOMLTable table = TOMLTable_new();
////////////////////////////////////////////////////
assert(TOML_parse_table(&ctx, &table) == TOML_S_OK);
////////////////////////////////////////////////////
String const foo_str = String_from_strlit("foo");
String const bar_str = String_from_strlit("bar");
String const baz_str = String_from_strlit("baz");
assert(TOMLTable_get(table, foo_str) != NULL);
assert(TOMLTable_get(table, foo_str)->kind == TOML_TABLE);
TOMLTable foo = TOMLTable_get(table, foo_str)->table;
assert(TOMLTable_get(foo, bar_str) != NULL);
assert(TOMLTable_get(foo, bar_str)->kind == TOML_INTEGER);
assert(TOMLTable_get(foo, bar_str)->integer == 1);
assert(TOMLTable_get(foo, baz_str) != NULL);
assert(TOMLTable_get(foo, baz_str)->kind == TOML_FLOAT);
assert(TOMLTable_get(foo, baz_str)->float_ == 4.5);
// TOMLTable_destroy(table); // don't forget this when you are doneTable arrays:
TOMLCtx ctx;
StringBuffer toml = StringBuffer_from_strlit("\
[[foo]] \
bar = 4.5 \
");
TOML_init(&ctx, toml);
TOMLTable table = TOMLTable_new();
////////////////////////////////////////////////////
assert(TOML_parse_table(&ctx, &table) == TOML_S_OK);
////////////////////////////////////////////////////
String const foo_str = String_from_strlit("foo");
String const bar_str = String_from_strlit("bar");
String const baz_str = String_from_strlit("baz");
assert(TOMLTable_get(table, foo_str) != NULL);
assert(TOMLTable_get(table, foo_str)->kind == TOML_TABLE_ARRAY);
assert(TOMLTable_get(table, foo_str)->array[0].kind == TOML_TABLE);
TOMLArray foo = TOMLTable_get(table, foo_str)->array[0].table;
assert(TOMLTable_get(foo, bar_str) != NULL);
assert(TOMLTable_get(foo, bar_str)->kind == TOML_INTEGER);
assert(TOMLTable_get(foo, bar_str)->integer == 1);
assert(TOMLTable_get(foo, baz_str) != NULL);
assert(TOMLTable_get(foo, baz_str)->kind == TOML_FLOAT);
assert(TOMLTable_get(foo, baz_str)->float_ == 4.5);
// TOMLTable_destroy(table); // don't forget this when you are doneFILE *toml_file = fopen("config.toml", "r");
fseek(toml_file, 0, SEEK_END);
int size = ftell(toml_file);
fseek(toml_file, 0, SEEK_SET);
StringBuffer toml = StringBuffer_with_length(size);
fread(toml, 1, size, toml_file);
fclose(toml_file);
TOMLCtx ctx;
TOML_init(&ctx, toml);
TOMLTable config = TOMLTable_new();
///////////////////////////////////////////////
assert(TOML_parse(&ctx, &config) == TOML_S_OK);
///////////////////////////////////////////////
// ...
// TOMLTable_destroy(config); // don't forget this when you are doneFor more examples check the tests.
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